SMART TOUCH 1.5 Boiler Product Line Brochure

User Manual: SMART TOUCH 1.5

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Boiler

Product Line

Brochure

www.Lochinvar.com

Lochinvar, LLC

300 Maddox Simpson Parkway

Lebanon, Tennessee 37090

Customer Assurance Inquiries (Equipment & Parts Order Inquiry)

Please contact 877-554-5544

Technical Service Inquiries

(Please have model and serial number available)

Please contact 800-722-2101

General Inquiries

615-889-8900/F: 615-547-1000

This catalog is designed to provide a convenient, condensed overview of the entire Lochinvar boiler product

line. For a complete list of features, specifications and technical data on a particular product, see the full line

catalog, your local distributor or contact Lochinvar. Every Lochinvar product is designed and built to meet

or exceed the fuel efficiency and safety standards of one or more of these agencies, wherever applicable.

From the SolutionTM to the CREST®, Lochinvar Boilers are noted for their range

of benefits and application flexibility. Collectively, they represent the most

complete product line in the industry. From a company with a long history of

innovation and a reputation for excellence.

You’ll find there’s a Lochinvar product for any application imaginable – from

standard residential units to state-of-the-art commercial products. And with

selection, comes opportunity.

In fact, the diversity and performance of our product line is surpassed only

by its quality–in design, construction, and training. A commitment that is

reinforced by the Lochinvar Tech Center, Lochinvar U, a state-of-the-art testing

and training facility equipped with the very latest in CAD/CAM technology and

a comprehensive R&D lab.

Quality, efficiency, features, service, and selection. For more than 90 years,

these have been the hallmarks of Lochinvar products.

Lochinvar...The innovator in boiler technology.

CREST® (FBN0751-2001) 1

CREST® (FBN2500-6000) 3

FTXLTM 5

KNIGHT® XL 7

Power-Fin® (PBN2500-5000) 9

Power-Fin® (PBN0502-2001) 11

Copper-Fin II® 13

Copper-Fin® 15

Copper-Fin® Atmospheric 17

KNIGHT® 19

KNIGHT Fire Tube Floor 21

KNIGHT Fire Tube Wall 23

NOBLE™ 25

Cadet® 27

SolutionTM 29

Buffer Tanks/

Hydraulic Separators 31

Squire® Buffer Tank 32

Squire® Indirect 33

Stack Frame 35

Electric Boilers 37

Low Temperature Valve 39

Contents

This emblem means the Stack Frame is

available for use with that product.

See page 31 for details.

This emblem means a product has a NOx

rating which exceeds the requirements of

the South Coast Air Quality Management

District and Texas Commission of

Environmental Quality.

With the exclusive “Wave” fire-tube design, advancements in Lochinvar combustion technology and

the SMART TOUCH™ control, CREST changed how the industry thinks about fire-tube boilers.

Now, six new CREST boilers, with 750,000, 1.0 million, 1.25 million, 1.5 million, 1.75 million and

2.0 million Btu/hr inputs, deliver 96.2% thermal efficiency.

96.2% Thermal Efficiency

The Crest Combustion System

CREST boilers are equipped with a top-mounted micro-metal

fiber burner, engineered specifically for fire-tube technology.

The system is designed to ensure smooth, quiet modulating

combustion from as low as 4% of maximum firing rate up

to 100% as the heating load increases. And in multi-boiler

applications, modulation is an essential element in cascade

sequencing, which helps ensure maximum efficiency and

long-term reliability.

Reduce Installation Costs with Variable

Flow Technology

CREST can operate over a wide range of flow rates with

very low pressure drop. This permits installation of a full

flow (variable primary) system. Installation is streamlined,

without the time and materials cost of primary/secondary piping, and pumps needed to maintain

flow in a water-tube boiler. Variable flow also makes CREST more flexible at handling frequent

fluctuations in the system flow rate.

Smooth-Running, Modulating Combustion

With up to 25:1 Modulation Turndown, CREST automatically changes the firing rate as building heat loads vary. An FBN-2001 fires

at its maximum 2,000,000 Btu/hr rate when the heat load is highest, and then gradually turns down to as low as 4% (80,000 Btu/hr)

as the load decreases. A modulating system runs smoothly and efficiently, without frequent on/off cycling. When the system is zoned,

CREST’s high turndown works to match the actual system demand. In return, CREST reduces the customer’s fuel bill and provides

better comfort by load-matching the heat loss of the system.

Built-in Cascading Sequencer

Cascade Redundancy provides peace of mind because it helps ensure that a CREST

boiler system will always deliver reliable performance with no downtime. If the lead

boiler is turned off for maintenance, Cascade Redundancy automatically shifts the

lead role to the second sequenced boiler. Up to eight CREST boilers can be sequenced

using a 2-wire daisy chain connection. Cascade sequencing can be programmed for

Lead-Lag or Efficiency Optimized operation.

With Lead-Lag operation, one lead boiler modulates to capacity on demand. As the load increases, the system then cascades to

additional lag boilers in sequence. The first-on role shifts daily, distributing equal runtimes to each unit.

In an Efficiency Optimized system, all boilers fire and modulate simultaneously

at the same Btu/hr input rates, maximizing thermal efficiency.

Unequaled Control and Monitoring

Crest features the next generation of Lochinvar’s all-in-one SMART TOUCH

operating control with the integration of the CON·X·US® advanced technology.

SMART TOUCH with CON·X·US provides outstanding functionality and can be

integrated directly into building automation systems via Modbus or BACnet

MSTP as standard equipment.

And now, the CON·X·US mobile communication platform allows SMART

TOUCH to go where no other boiler has gone before. CON·X·US provides the

ability to monitor and manage multiple Crest boiler plants without ever stepping

into mechanical rooms.

1 2 3 4 5 6 7 8

CREST® Boiler Dimensions & Specifications

LOW

VOLTAGE

HIGH

VOLTAGE

HIGH

VOLTAGE

LOW

VOLTAGE

RELIEF

VALVE

WATER

OUTLET

WATER

INLET

SIDE

K11 3/8"11 1/4"12 1/2"

CONDENSATE

DRAIN

78"

VENT

AIR

GAS

BACK TOP

DRAIN DRAIN

Input MBH AHRI

Thermal

Efficiency Output

MBH

Net

AHRI

Rating

MBH

Water Ship.

Wt.

(lbs)

Model

Number Min Max

Turndown

A B C D E F G H J K L Gas

Conn. Inlet/

Outlet Air

Intake Vent

Size Oper.

Weight

FBN0751 50 750 96.2% 722 627 15:1 30” 49-1/2” 51” 13” 8-3/4” 23-3/4” 26-3/4” 7-3/8” 57-5/8” 11-7/8” 66-1/8” 1-1/4” 3” 6” 6” 1,768 1,560

FBN1001 50 1,000 96.2% 962 837 20:1 30” 49-1/2” 51” 13” 8-3/4” 23-1/8” 26-3/4” 6-1/2” 57-5/8” 11-7/8” 66-1/8” 1-1/4” 3” 6” 6” 1,838 1,596

FBN1251 63 1,250 96.2% 1,203 1,046 20:1 30” 49-1/2” 51-3/8” 13” 8-3/4” 21-5/8” 26-3/4” 6-1/2” 57-3/4” 11-7/8” 66-1/8” 1-1/4” 3” 6” 8” 1,975 1,648

FBN1501 60 1,500 96.2% 1,443 1,255 25:1 30” 59-1/4” 62-3/8” 15-7/8” 9” 27-7/8” 26-7/8” 5-1/8” 68” 12-3/8” 65-3/8” 1-1/2” 4” 8” 8” 2,307 1,961

FBN1751 70 1,750 96.2% 1,684 1,464 25:1 30” 58-3/4” 61-1/2” 15-7/8” 9” 27-1/8” 27” 5-1/8” 68” 12-3/8” 65-3/8” 1-1/2” 4” 8” 8” 2,458 2,017

FBN2001 80 1,999 96.2% 1,924 1,673 25:1 30” 58-3/4” 61-1/2” 15-7/8” 9” 26-3/4” 27” 5-1/8” 68” 12-3/8” 65-3/8” 1-1/2” 4” 8” 8” 2,570 2,087

NOTES: Change "N" to "L" for LP gas models. Indoor installation only. *Information subject to change without notice

Smart Touch™ Features

CON·X·US® Remote Connect

SMART TOUCH Touchscreen Operating Control

Full-Color 8" Touchscreen LCD Display

Built-in Cascading Sequencer for up to 8 Boilers with

Built-in Redundancy

> Cascade Multiple Sized Boilers

> Lead/Lag Cascade

> Efficiency Optimized Cascade

Front-End Loading Capability with Copper-Fin II® and

Power-Fin® Boilers

Building Management System Integration with

0-10 VDC Input

BACnet MSTP and Modbus Communications

Outdoor Reset Control with Outdoor Air Sensor

Password Security

Domestic Hot Water Prioritization

> DHW tank piped with priority in the boiler loop

> DHW tank piped as a zone in the system with the

> pumps controlled by the Smart System

> DHW Modulation Limiting

> Separately Adjustable SH/DHW Switching Times

Low Water Flow Safety Control & Indication

Inlet & Outlet Temperature Readout

Freeze Protection

Service Reminder

Time Clock

Data Logging

> Hours Running, Space Heating

> Hours Running, Domestic Hot Water

> Hours Running, Modulation Rate

> Ignition Attempts

> Last 10 Lockouts

Programmable System Efficiency Optimizers

> Night Setback

> Anti-Cycling

> Outdoor Air Reset Curve

> Ramp Delay

> Boost Temperature & Time

> Modulation Factor Control

Three Pump Control

> System Pump

> Boiler Pump

> Domestic Hot Water Pump

High-Voltage Terminal Strip

> 120 VAC / 60 Hertz / 1 Phase Power Supply

> System Pump, Boiler Pump and DHW Pump Power

Low-Voltage Terminal Strip

> 24 VAC Auxiliary Device Relay

> Auxiliary Proving Switch Contacts

> Alarm on Any Failure Contacts

> Runtime Contacts

> DHW Thermostat Contacts

> Unit Enable/Disable Contacts

> System Sensor Contacts

> DHW Tank Sensor Contacts

> Outdoor Air Sensor Contacts

> Cascade Contacts

> 0-10 VDC BMS External Control Contact

> 0-10 VDC Variable Speed Boiler Pump Control Contact

Optional Equipment

Wireless Outdoor Temperature Sensor

Alarm Bell

BMS Gateway - BACnet IP or LonWorks

Condensate Neutralization Kit

Common Vent Kits

Electrical Options (Shipped Loose):

> 208V/3Ø/60Hz

> 480V/3Ø/60Hz

> 600V/3Ø/60Hz

Motorized Isolation Valve

Variable Speed Boiler Pump

Gas Regulator

Codes & Registrations

ANSI Z21.13/CSA Certified

ASME Certified, “H” Stamp / National Board

California Code Compliant

CSD1 / Factory Mutual / GE Gap Compliant

AHRI Certified

Canadian Registration Number (CRN)

Standard Features

96.2% Thermal Efficiency (AHRI)

Up to 99% Thermal Efficiency in Low-Temp. Applications

Modulating Burner with up to 25:1 Turndown

Direct-Spark Ignition

Low-NOx Operation

Sealed Combustion

Air Inlet Filter w/Replacement Reminder

Low Gas Pressure Operation

Vertical and Horizontal Direct Venting

> Direct Vent up to 100 Feet

> PVC, CPVC, Polypropylene or AL29-4C

ASME “H” Stamped Heat Exchanger

316L Stainless Steel Fire Tubes

160 psi Working Pressure

On/Off Switch

Adjustable High Limit with Manual Reset

Low Water Cutoff with Manual Reset & Test

High & Low Gas Pressure Switches w/Manual Reset

Low Air Pressure Switches

Condensate Trap w/Blocked Drain Switch

Drain Valve

System Sensor

Outdoor Air Sensor

Inlet & Outlet Temperature Sensors

High-Voltage Terminal Strip

Low-Voltage Terminal Strip

Downstream Gas Test Cocks

50 psi ASME Relief Valve

Temperature & Pressure Gauge

Zero Clearances to Combustible Materials

10-Year Limited Warranty (See Warranty for Details)

1-Year Warranty on Parts (See Warranty for Details)

93%

Lochinvar® has taken the fire-tube concept in an innovative direction with the

CREST® modulating-condensing boiler. With sizes that range from 2.5 to 5.0 million Btu/

hr, you have the opportunity to utilize Lochinvar leading-edge technology in your largest

applications. With thermal efficiencies up to 99% in low water temperature applications,

CREST is positioned to provide exceptional energy-saving performance.

The advanced CREST introduces a combustion system with a unique burner design with

up to 20:1 turndown. The burner fires into an array of 316L stainless steel fire-tubes that

transfer the heat to the surrounding water with exceptionally high efficiency.

CREST communicates seamlessly and in real time with building management systems by

utilizing an on-board Modbus protocol and BACnet MSTP. The SMART TOUCH control

with CON·X·US® has a built-in cascading component that communicates with up to eight

units, providing total command without an external control or complex and expensive control

logic programming by the BMS integrator.

With the added feature of CON·X·US remote connectivity, the CREST boiler can be

monitored from anywhere even if your building does not have a building management

system. Innovative fire-tube boiler technology integrated with our SMART TOUCH™

operating control makes CREST a genuine game-changer among commercial boilers.

Up to 93% Thermal Efficiency

Advanced Negative Regulation Technology

CREST safely and reliably operates with supply gas

pressure as low as 4 inches water column. Because

Negative Regulation (Neg/Reg) technology draws fuel

gas into a pre-mix combustion system instead of relying on utility pressure through the gas valve,

operation is steady in low gas pressure systems or when peak demands occur on supply lines. Plus,

Neg/Reg automatic fan speed control fine-tunes the correct fuel/air ratio entering the burner, providing

even, consistent combustion for a cleaner burning flame achieving high combustion efficiency.

Fully Modulating up to 20:1 Turndown

20:1 turndown means the burner can fire at a rate as low as 5% of its maximum input. For example,

a 2.5 million Btu/hr CREST unit can modulate from 125,000 up to 2,500,000 Btu/hr depending on

demand. High turndown greatly reduces “short cycling” when demand is low. All boiler systems are

designed to provide enough heat to maintain a facility’s heat loss on the coldest days. When the

system is zoned, the CREST’s high turndown works to match the actual system demand and, in

return, reduces the customer’s fuel bill and provides better comfort by load matching the heat loss

of the system. Greater seasonal efficiencies will be realized due to the extremely large turndown

offered by CREST.

As Low As 25 GPM* to Full 350 GPM Flow Rates

CREST allows system designers tremendous flexibility to vary the flow rate through the boiler. It can service systems that operate

with widely fluctuating flow rates depending on demand. CREST can be installed with primary/secondary piping or in a full-flow

arrangement. Typical design techniques include full-flow systems or variable flow systems using variable frequency drives on the

heating water pumps. In either case, CREST excels in these applications and allows the flow through the boiler to vary based on

system demand. * 25 GPM min. flow on FB2500 model, 50 GPM on FB5000 model.

Built-in Cascading Sequencer

Sequences up to an 8-boiler system using simple 2-wire daisy chain connection, eliminating cost and uncertainty of a separate “third

party” sequencer. On demand, one boiler functions as the leader and modulates to capacity. Increasing load then “cascades” to

additional “lag” boilers in sequence as needed. Lead-lag rotation shifts “first on” boiler role every 24 hours, distributing equal lead-

lag runtimes to each unit.

Boiler Control from Anywhere

Crest features the next generation of Lochinvar’s all-in-one SMART TOUCH operating control with the

integration of the CON·X·US advanced technology. SMART TOUCH with CON·X·US provides outstanding

functionality, and can be integrated directly into building automation systems via Modbus and BACnet MSTP

as standard equipment.

And now, the CON·X·US mobile communication platform allows the SMART TOUCH to go where no other boiler has gone before.

CON·X·US provides the ability to monitor and manage multiple Crest boiler plants without ever stepping into the mechanical rooms.

REMOTE CONNECT

Up to 93% Thermal Efficiency CREST® Boiler Dimensions & Specifications

BACK

80"

14-7/8"

WATER

OUTLET

LOW

VOLTAGE

HIGH

VOLTAGE

WATER

INLET

CONDENSATE

DRAIN

VENT

GAS

AIR

RELIEF

VALVE HIGH

VOLTAGE

LOW

VOLTAGE

TOP

DRAIN

8" 11"

10 -1/4"

SIDE

Model Input Input AHRI NET AHRI

Number MBH MBH Thermal Output Rating

Min. Max. Efficiency MBH MBH Turndown

FBN2500 125 2,500 92.0% 2,300 2,000 20:1

FBN3000 150 3,000 92.0% 2,760 2,400 20:1

FBN3500 200 3,500 92.0% 3,220 2,800 18:1*

FBN4000 335 4,000 93.0% 3,720 3,235 12:1

FBN5000 500 5,000 93.0% 4,650 4,043 10:1

FBN6000 600 6,000 92.0% 5,520 4,799 10:1

Gas Air Vent Oper. Ship

A B C D E F G H J K Conn. Inlet Size Wt. (lbs) Wt. (lbs)

34-1/4" 76-3/8" 70-1/4" 17-3/4" 26-1/8" 9-3/4" 27-3/8" 11-3/8" 78" 83" 2" 8” 9” 3,652 2,560

40-1/2" 83-5/8" 76-3/8" 17-3/8" 31-3/8" 9-7/8" 34-3/4" 11-1/2" 82-1/8" 87-1/8" 2" 10” 10” 4,126 2,920

40-1/2" 83-1/4" 75-5/8" 17-1/4" 31-3/8" 9-7/8" 34-3/4" 12-7/8" 81-1/8" 86-1/8" 2" 10” 10” 4,744 3,225

53-1/2" 109" 100-3/4" 31-1/4" 40-3/4" 14-1/2" 45-3/4" 12-3/4" 104-1/2" 108-1/4" 2-1/2" 12” 12” 6,900 4,750

53-1/2" 107" 100-3/4" 28" 40-3/4" 11" 45-1/2" 12-3/4" 104" 108-1/4" 2-1/2" 14” 14” 8,000 5,550

53-1/2” 107 100-3/4” 28” 40-3/4” 11 45-1/2” 9” 104” 108-1/4” 2-1/2” 14” 14” 8,100 5,650

Notes: Indoor installation only. All information subject to change. Change "N" to "L" for LP gas models. For Low NOx on FB2500 - FB5000 models, consult factory.

*Turndown rate reduced on LP gas model.

Dimensions and Specifications

Crest Heating Boiler

Smart Touch™ Features

CON·X·US Remote Connect

SMART TOUCH Touchscreen Operating Control

Full-Color 8” Touchscreen LCD Display

Built-in Cascading Sequencer for up to 8 Boilers

Cascade Multiple Sized Boilers

> Lead/Lag Cascade

> Efficiency Optimized Cascade

Front-End Loading Capability with Copper-Fin II

and Power-fin Boilers

Building Management System Integration with

0-10 VDC Input

BACnet MSTP and Modbus Communications

Outdoor Reset Control with Outdoor Air Sensor

Password Security

Domestic Hot Water Prioritization

> DHW tank piped with priority in the boiler loop

> DHW tank piped as a zone in the system with the

pumps controlled by the Smart System

> DHW Modulation Limiting

> Separately Adjustable SH/DHW Switching Times

> Low Water Flow Safety Control & Indication

> Inlet & Outlet Temperature Readout

> Freeze Protection

> Service Reminder

> Time Clock

Data Logging

> Hours Running, Space Heating

> Hours Running, Domestic Hot Water

> Hours Running, Modulation Rate

> Ignition Attempts

> Last 10 Lockouts

Programmable System Efficiency Optimizers

> Night Setback

> Anti-Cycling

> Outdoor Air Reset Curve

> Ramp Delay

> Boost Temperature & Time

Three Pump Control

> System Pump

> Boiler Pump

> Domestic Hot Water Pump

High-Voltage Terminal Strip

> 120 VAC / 60 Hertz / 1 Phase Power Supply (FB2500-

3500)

> 208 VAC / 60 Hertz / 3 Phase Power Supply (FB4000-

5000)

> System Pump, Boiler Pump and DHW Pump Power

Low-Voltage Terminal Strip

> 24 VAC Auxiliary Device Relay

> Auxiliary Proving Switch Contacts

> Alarm on Any Failure Contacts

> Runtime Contacts

> DHW Thermostat Contacts

> Unit Enable/Disable Contacts

> System Sensor Contacts

> DHW Tank Sensor Contacts

> Outdoor Air Sensor Contacts

> Cascade Contacts

> 0-10 VDC BMS External Control Contact

Standard Features

Up to 93% Thermal Efficiency (AHRI)

Up to 99% Thermal Efficiency in Low

Temperature Applications

Modulating Burner with up to 20:1 Turndown

Direct-Spark Ignition

Sealed Combustion

Low Gas Pressure Operation

Vertical or Horizontal Venting

Category IV Venting up to 100 Feet

ASME “H” Stamped Heat Exchanger

316L Stainless Steel Fire Tubes

160 psi Working Pressure

On/Off Switch

Adjustable High Limit with Manual Reset

Low Water Cutoff with Manual Reset & Test

High & Low Gas Pressure Switches

w/Manual Reset

Low Air Pressure Switches

Condensate Trap w/ Blocked Drain Switch

Drain Valve

System Sensor

Outdoor Air Sensor

Inlet & Outlet Temperature Sensors

High Voltage Terminal Strip

Low Voltage Terminal Strip

Downstream Gas Test Cocks

50 psi ASME Relief Valve

Temperature & Pressure Gauge

Zero Clearances to Combustible Materials

10-Year Limited Warranty

(See Warranty for Details)

1-Year Warranty on Parts

(See Warranty for Details)

Optional Equipment

Alarm Bell

BMS Gateway - BACnet IP or LonWorks

Condensate Neutralization Kit

Common Vent Damper

Dual Fuel Gas Train

Electrical Options (Shipped Loose):

> 208V/3Ø/60Hz (Models FB2500-3500 only)

> 480V/3Ø/60Hz

> 600V/3Ø/60Hz

Motorized Two Way Valve

Variable Speed Boiler Pump

Gas Regulator

Inline Air Filter

Codes & Registrations

ANSI Z21.13/CSA Certified

ASME certified, “H” Stamp / National Board

California Code Compliant

CSD1 / Factory Mutual / GE Gap Compliant

Canadian Registration Number (CRN)

AHRI Certified

U.S. Patent # 8,286,594

The New 98% Standard

Lochinvar re-defined the fire-tube boiler category with its

KNIGHT® Wall-Mount and CREST® lines. For residential and

light commercial applications, the FTXL™ adds models from

399,999 to 850,000 Btu/hr, and takes Lochinvar’s fire-tube

technology to the next level. FTXL offers best-in-class AHRI

Thermal Efficiency and footprints, plus remote connectivity

that puts the SMART SYSTEM™ control at your fingertips,

anywhere!

Reduce Installation Cost with

Variable Flow Technology

FTXL can operate over a wide range of flow rates with very

low pressure drop. This permits installation of a “full flow”

(variable primary) system eliminating the time and materials cost

of primary/secondary piping, and pumps needed to maintain flow

in a water-tube boiler. Variable flow also makes FTXL more

flexible at handling frequent fluctuations in the system flow rate.

Smooth-Running,

Modulating Combustion

FTXL boilers have a top-mounted,

micrometal fiber burner, with a blower/

gas valve assembly that drives heat energy

downward, through stainless steel fire

tubes, with exhaust venting through the

bottom of the unit. With up to 10:1

modulation turndown, the burner

automatically changes its firing rate as

building heat loads vary. An FTX500

fires at its maximum 500,000 Btu/hr rate

when heat load is highest, then gradually

“turns down” to as low as 10% (50,000

Btu/hr) as load decreases. A modulating

system runs smoothly and efficiently,

without frequent on/off cycling.

Minimum Supply Pressure, Installer-Friendly

FTXL operates with supply gas pressure as low as 4 inches

water column. Negative Regulation draws gas into a pre-mix

combustion system, instead of relying on utility pressure through

the gas valve. The result is steady operation in low gas pressure

systems or when peak demand occurs on gas supply. Automatic

fan speed control fine-tunes the correct fuel/air ratio entering the

burner, providing superior combustion throughout the entire

operating range.

Cascade Sequencing

Up to eight FTXL boilers can be sequenced using a 2-wire

daisy chain connection. Cascade sequencing can be programmed

for “Lead-Lag” or “Efficiency Optimized” operation. With Lead-

Lag operation, one lead boiler modulates to capacity on demand.

As load increases, the system then cascades to additional lag

boilers in sequence. The first-on role shifts daily, distributing

equal runtimes to each unit. In an Efficiency Optimized system,

all boilers fire and modulate simultaneously at the same BTU/hr

input rates, maximizing thermal efficiency.

REMOTE CONNECT

Boiler Plant Control, from Anywhere

FTXL features the next generation of Lochinvar’s

all-in-one SMART SYSTEM operating control with a

re-designed multi-color LCD interface. SMART

SYSTEM provides outstanding functionality, and can be

integrated directly into a building automation system via

ModBus and other communications protocols. And now,

the CON·X·US mobile communication platform allows

SMART SYSTEM to go where no other boiler has gone

before.†

CON·X·US

provides the ability

to monitor and

manage multiple

FTXL boiler plants without ever stepping into the

mechanical room. CON·X·US will send alerts via text or

e-mail notifying of changes in system status, and

anytime, from anywhere, a user can check system status

and re-program any boiler function.

Once downloaded, the free CON·X·US mobile

application allows for remote access to all SMART

SYSTEM functions using any Internet-capable device.

†CON·X·US control board

sold separately.

FTXL™ Boiler Dimensions & Specifications

53-1/2"

26-1/4" 2-1/2" 22-1/2"

65-1/2"

2-1/2"

G 40"

9-3/4"

26-1/4"

Air Inlet Electrical Connections

Water Outlet

Water Inlet

Flue Connection

Condensate Connection

Gas Connection

Smart System Features

> Smart System Digital Operating Control

Multi-Color Graphic LCD Display w/Navigation Dial

> Loch-N-Load USB Thumb Drive Port for Easy

Programming

> Cascading Sequencer with Built-in Redundancy

Selectable Cascade Type:

Lead Lag/Efficiency Optimization

Multiple Size Boilers

Front-End Loading

> 3 Reset Temperatures Inputs w/Independent

Outdoor Reset Curves for Each

Outdoor Sensor

> Four-Pump Control

System Pump with Parameter for Continuous

Operation

Boiler Pump with Variable-Speed Control

Domestic Hot Water Boiler Pump

Domestic Hot Water Recirculation Pump Control

with Sensor

> Building Management System Integration

0-10 VDC Input to Control Modulation or Setpoint

0-10 VDC Input from Variable-Speed System Pump

0-10 VDC Modulation Rate Output Signal

0-10 VDC Enable/Disable Signal

> Programmable System Efficiency Optimizers

Space Heating Night Setback

DHW Night Setback

Anti-Cycling

Ramp Delay

Boost Time and Temperature

> High-Voltage Terminal Strip

120 VAC/60 Hertz/1 Phase

Pump Contacts for 3 Pumps

> Low-Voltage Terminal Strip

Building Recirculation Pump Start/Stop

Proving Switch Contacts

Flow Switch Contacts

Alarm Contacts

Runtime Contacts

3 Space Heat Thermostat Contacts

Tank Thermostat Contacts

System Sensor Contacts

Tank Sensor Contacts

Cascade Contacts

0-10 VDC BMS Contacts

0-10 VDC Boiler Rate Output Contacts

0-10 VDC Boiler Pump Speed Contacts

0-10 VDC System Pump Speed Contacts

ModBus Contacts

> Time Clock

> Data Logging

Ignition Attempts

Last 10 Lockouts

Space Heat Run Hours

Domestic Hot Water Run Hours

Standard Features

> 97%-98% Thermal Efficiency

> Modulating Burner with up to 10:1 Turndown

Direct Spark Ignition

Low NOx Operation

Sealed Combustion

Low Gas Pressure Operation

> Stainless Steel Fire-Tube Heat Exchanger

ASME-Certified, “H” Stamped

160 psi Working Pressure

50 psi Relief Valve

Combustion Analyzer Test Port

Fully Welded Design

> Vertical and Horizontal Direct Vent

Direct Vent up to 100 feet

PVC, CPVC, Polypropylene or AL29-4C

Factory Supplied Sidewall Vent Termination

> Smart System Control

> Other Features

On/Off Switch

Adjustable High Limit with Manual Reset

Automatic Reset High Limit

Manual Reset Low Water Cutoff

Flue Temperature Sensor

Low Air Pressure Switch

Temperature and Pressure Gauge

Condensate Trap

Zero Service Clearances

10-Year Limited Warranty (See Warranty)

Custom Maintenance Reminder with Contact Info

Password Security

Customizable Freeze Protection Parameters

Optional Equipment

CON·X·US Remote Connect

Motorized Isolation Valve

Wireless Outdoor Sensor

Multi-Temperature Loop Control

Variable-Speed Boiler Circulator

Constant-Speed Boiler Circulator

ModBus Communication

Alarm Bell

Condensate Neutralization Kit

Concentric Vent Kit (FTX400-FTX600)

BMS Gateway to BACnet or LonWorks

High and Low Gas Pressure Switches w/Manual

Reset(FTX500-FTX850)

> Firing Controls

M9-Standard Construction

M13-CSD-1/FM/GE Gap (FTX500-FTX850)

Input AHRI NET AHRI HEX

Model Min Max Thermal Output Rating Turn Flow

(GPM)

Water

Number MBH MBH Efficiency MBH MBH down Min Max Volume

FTX400(N,L) 40.0 399.9 98.0% 392 341 10:1 10 105 13

FTX500(N,L) 50.0 500.0 97.7% 489 425 10:1 15 105 12

FTX600(N,L) 85.0 600.0 97.5% 585 509 7:1 15 105 12

FTX725(N,L) 103.5 725.0 97.2% 705 613 7:1 20 150 17

FTX850(N,L) 121.5 850.0 97.0% 825 717 7:1 25 150 16

*Information subject to change without notice

Dimensions are in inches. Select “N” or “L” for Natural or LP gas

Water Vent Air Gas Ship

A B C D E F G H Conn. Size Intake Conn. Wt. (lbs)

30-1/2" 27-1/2" 10-1/4" 17" 23-1/4" 46-1/4" 39-1/2" 10-3/4” 2" 4” 4” 1” 435

30-1/2" 27-1/2" 10-1/4” 17" 23-1/4" 46-1/4" 39-1/2” 10-3/4” 2" 4” 4” 1” 460

30-1/2" 27-1/2" 10-1/4” 17" 23-1/4" 46-1/4" 39-1/2” 10-3/4” 2" 4” 4” 1” 470

33” 28-1/2" 10-1/2” 17-1/2" 23-1/2" 48-1/2" 41-1/4” 11" 2-1/2" 6” 4” 1” 510

33" 28-1/2" 10-1/2” 17-1/2" 23-1/2" 48-1/2" 41-1/4" 11" 2-1/2" 6” 4” 1” 535

The KNIGHT® XL, engineered with Lochinvar’s exclusive SMART SYSTEM™ control

and an array of other innovative features, places it far ahead of any commercial heating

boiler in its class. It promises and delivers ultimate ease of installation and maintenance.

With up to 94% thermal efficiency, low-NOx emissions and a fully modulating burner,

it is the best ”green choice” for today’s environmentally focused market.

Five modulating/condensing stainless steel KNIGHT XL boilers are available with

399,999–800,000 Btu/hr inputs and remarkably small space-saving footprints. All are

equipped for direct-vent installation with air intake and exhaust runs up to 100 feet using

PVC, CPVC, Polypropylene or AL29-4C vent materials. This range of choices is ideal

for light-duty applications such as small hotels, schools and office buildings. For higher-

demand applications, up to eight KNIGHT XL units can be installed utilizing the built-in

cascading sequencer to deliver up to 6.4 million Btu/hr heating capacity.

Control

SMART SYSTEM provides unequalled control and monitoring functions that are easy to

understand and use.

• Multi-Color Graphic LCD Display

• Navigation Dial

• USB Port

• Modbus Capability (Optional)

• DHW Modulation Limiting

• DHW Night Setback

• Controls up to three different setpoint temperatures

• 0-10V Boiler Rate Output

• 0-10V Signal to control variable speed boiler pump

• 0-10V System Pump Signal Input*

• Heat Demand from 0-10V Input

• Installer to Program Name and Number into the Boiler

• Freeze Protection Parameters Installer Adjustable

• Separately adjustable SH/DHW Switching times*

• Installer access to BMS and ramp delay settings

*Exclusive to Lochinvar Smart System

Advanced Negative Regulation Technology

KNIGHT XL safely and reliably operates with supply gas pressure as low as 4

inches water column. Negative Regulation (Neg/Reg) technology automatically

adjusts fan speed that ensures the correct volume and mix of fuel and air

throughout the firing range.

Two-in-One Stainless Steel Heat Exchanger

A primary heat exchanger combined with a secondary heat exchanger captures

flue gas heat and condenses to utilize available latent energy. The stainless steel,

pH-tolerant design features a weld-sealed assembly with no O-rings or gaskets

and does not require special glycol. ASME Section IV approved and stamped.

Fully Modulating Burner

The SMART SYSTEM allows fully modulating combustion with 5:1 turndown.

The burner can fire as low as 20% of maximum input and modulates the firing

rate up to 100% as demand increases. The burner is a single stainless steel

assembly covered with woven steel mesh and fires in a 360° pattern along the entire length of the primary heat exchanger. This

allows the compact KNIGHT XL to exceed the capacity of units with larger multiple burners.

Direct Venting up to 100 Feet

KNIGHT XL offers 7 venting options and tremendous flexibility for placement of units within

the building, because it permits direct-vent air intake and exhaust runs up to 100 equivalent feet

using either PVC, CPVC, Polypropylene or AL29-4C stainless steel vent pipe. A sidewall vent

termination kit is shipped standard with every KNIGHT XL boiler.

The Smartest Choice for Condensing Boiler Performance

KNIGHT XL® Boiler Dimensions & Specifications

Outdoor Air Sensor Contacts

Cascade Contacts

0-10 VDC BMS External Control Contact

0-10 VDC Boiler Rate Output Contacts

0-10 VDC Variable Speed System Pump Signal Input

0-10 VDC Signal to Control Variable Speed Boiler Pump

Modbus Contacts

Time Clock

Data Logging

> Hours Running, Space Heating

> Hours Running, Domestic Hot Water

> Ignition Attempts

> Last 10 Lockouts

Other Features

Low Water Flow Safety Control & Indication

Password Security

Inlet & Outlet Temperature Readout

Customizable Freeze Protection Parameters

Custom Maintenance Reminder with Contractor Info

*Exclusive feature, available only from Lochinvar

Standard Features

94% AHRI Certified Thermal Efficiency

Modulating Burner with 5:1 Turndown

> Direct-Spark Ignition

> Low NOx Operation

> Sealed Combustion

> Low Gas Pressure Operation

ASME Stainless Steel Heat Exchanger

> ASME Certified, ”H” Stamped

Gasketless Heat Exchanger

> 160 psi Working Pressure

> 50 psi ASME Relief Valve

> Highly efficient, condensing design

Vertical & Horizontal Direct-Vent

> Category IV venting up to 100 feet

> PVC, CPVC, Polypropylene or AL29-4C

Venting up to 100 Feet

> Factory Supplied Sidewall Vent Termination

Smart SystemTM Control

Other Features

On/Off Switch

Adjustable High Limit w/ Manual Reset

Automatic Reset High Limit

Flow Switch

Flue Temperature Sensor

Low Air Pressure Switch

Temperature & Pressure Gauge

Adjustable Leveling Legs

Condensate Trap

Zero Clearances to Combustible Material

10 Year Limited Warranty (See Warranty)

Smart System Features

SMART SYSTEM Digital Operating Control

> Multi-Colored Graphic LCD Display w/

Navigation Dial

> Three Reset Temperature Inputs with

curves for three set point temperature inputs

Built in Cascading Sequencer for up to 8 Boilers

Multiple Size Boiler Cascade

Lead Lag

Efficiency Optimization

Front End Loading with Copper-Fin II®

Outdoor Reset Control with Outdoor Air Sensor

Programmable System Efficiency Optimizers

> Night Setback

> DHW Night Setback

> Anti-Cycling

> Outdoor Air Reset Curve

> Ramp Delay

> Boost Temperature & Time

Three Pump Control

> System Pump With Parameter for Continuous Operation

> Boiler Pump With Variable Speed Pump Control

> Domestic Hot Water Pump

Domestic Hot Water Prioritization

> DHW tank piped with priority in the boiler loop

> DHW tank piped as a zone in the system with

the pumps controlled by the Smart System

> DHW Modulation Limiting

> Separately Adjustable SH/DHW Switching Times*

Building Management System Integration

> 0-10 VDC Input to Control Modulation or Set Point

> 0-10 VDC Input Signal from Variable Speed System Pump*

> 0-10 VDC Modulation Rate Output

> 0-10 VDC Input to Enable/Disable call for heat

> Access to BMS Settings through Display

High Voltage Terminal Strip

> 120 VAC / 60 Hertz / 1 Phase Power Supply

> Three sets of Pump Contacts with Pump Relays

Low Voltage Terminal Strip

24 VAC Device Relay

Proving Switch Contacts

Flow Switch Contacts

Alarm on Any Failure Contacts

Runtime Contacts

DHW Thermostat Contacts

3 Space Heat Thermostat Contacts

System Sensor Contacts

DHW Tank Sensor Contacts

Input AHRI Net AHRI

Model Min Max Thermal Output Rating

Number MBH MBH Efficiency MBH MBH

KBN400 80 399 94.0% 376 327

KBN501 100 500 94.0% 470 409

KBN601 120 600 94.0% 564 490

KBN701 140 700 94.0% 658 572

KBN801 160 800 94.0% 752 654

A B C D E F G H I J K Gas Water Air Vent Ship

Conn. Conn. Inlet Size Wt. (lbs)

42-1/2” 15-1/2” 27-3/4” 3-3/4” 20-3/4” 21” 14” 34” 34” 2” 18-3/4” 1” 1-1/2” 4” 4” 280

42-1/2” 15-1/2” 31-1/2” 3-3/4” 25-1/2” 21” 14” 32-1/2” 36” 2” 18” 1” 1-1/2” 4” 4” 310

42-1/2” 15-1/2” 36-1/4” 3-3/4” 25” 21” 14” 36” 32-3/4” 5-1/2” 19-1/2” 1” 2” 4” 4” 340

42-1/2” 15-1/2” 40-1/4” 3-3/4” 29” 23” 17” 36” 32-3/4” 3-1/4” 23-1/2” 1” 2” 4” 6” 370

42-1/2” 15-1/2” 45-1/4” 3-3/4” 33-1/4” 23” 17” 36” 32-3/4” 3-1/4” 27-3/4” 1” 2” 4” 6” 405

Notes: Indoor installation only. All information subject to change. Change “N” to “L” for LP gas models.

LEFT SIDE

FRONT

BACK

39-1/2"

13-3/4"

18-3/4"

1-1/4"1/4" -

ADJUSTABLE

AIR INLET

FLUE

LOW VOLTAGE

ELECTRICAL

CONNECTIONS

GAS

INLETOUTLET

HEAT

EXCHANGER

DRAIN

3/4" NPT

CONDENSATE

DRAIN

FLUE

HIGH VOLTAGE

ELECTRICAL

CONNECTIONS

38-3/4"

3-1/2"

Optional Equipment

CON·X·US Remote Connect

Alarm Bell

Condensate Neutralization Kit

Concentric Vent Kit (KB400-KB601)

BMS Gateway - BACnet or LonWorks

High & Low Gas Pressure Switches

w/ Manual Reset (KB501-KB801)

Modbus Communication

Multi Temperature Loop Control

Low Water Cutoff w/Manual Reset & Test

Boiler Circulation Pump

Stainless Steel Vent Kits (KB701-KB801)

Stack Frame

Variable Speed Boiler Pump

Wireless Outdoor Sensor

Firing Control Systems

M9 Standard Construction

M7 California Code

M13 CSD1 / FM / GE Gap (KB501-KB801

)

Knight® XL Heating Boiler Dimensions and Specifications

Registered under U.S. Patent # 7,824,178

A Legendary Boiler Has More Than

Doubled Its Output

In 1986, Power-Fin®

redefined the industry

with its space-saving

design, groundbreaking

efficiency and venting

flexibility. Now we’re

raising the bar again

by more than doubling

its maximum input

capacity from 2 to 5

million BTU/hr. The

Power-Fin’s new heat

exchanger features

an innovative double

row of swept fins that

delivers 2.5 times the output of the original model. The Power-

Fin continues to offer a space-saving footprint and all models

will pass through a 36˝ wide door.*

Enhanced Operating Control

The Power-Fin now offers the industry-best

Smart Touch™ 8˝ LCD full color touchscreen with

easy-to-understand infographics. It is equipped with

CON·X·US® connectivity that lets you remotely

monitor and optimize the performance of the entire

boiler plant.

2,500,000 to 5,000,000 Btu/hr models

Starting with the introduction of Power-Fin product

line in 1986, we were able to provide something

that other companies weren’t focused on, efﬁciency

and footprint. Now, 30 years later, we are proud to

continue that tradition and provide some of the most

efﬁcient products on the market.

Burner Modulation Boosts Efficiency and Lowers Costs

With thermal efficiencies up to 87%, Power-Fin boilers feature a 5:1 turndown ratio that will precisely match

the firing rates to heating load requirements—at any point from 20% to full firing rate. This results in less

equipment cycling for greater efficiency and cost savings.

Ready for Outdoor Installation

In warm-weather sites where the mechanical room is overcrowded, the Power-Fin can be easily installed

either outdoors or on a rooftop. Its optional hood and screen protector make outdoor installation fast and

trouble free.

Venting Solutions

The Power-Fin offers seven venting options for ease of installation and venting exibility to meet the most

challenging installation requirements. The Power-Fin permits air intake and exhaust lengths up to 100 ft,

allowing terminations to be horizontal through a sidewall or vertical through a roof. If oor space is limited,

the Power-Fin can be installed outdoors with the addition of the outdoor kit.

Power-Fin® Boiler Dimensions & Specifications

2,500,000 - 5,000,000 Btu/hr models

Registered under U.S. Patent # 7,506,617

Programmable System Efficiency

Optimizers

> Night Setback

> Anti-Cycling

> Outdoor Air Reset Curve

> Ramp Delay

> Boost Temperature & Time

> Modulation Factor Control

Three Pump Control

> System Pump

> Boiler Pump

> Domestic Hot Water Pump

High-Voltage Terminal Strip

> 240V/60 Hertz/1 Phase Power

Supply (PB2500-PB3000)

> 208V/60 Hertz/3 Phase Power

Supply (PB3500-

PB4000)

> 480V/60 Hertz/3 Phase Power

Supply (PB5000)

> System Pump, Boiler Pump and

DHW Pump Power

Low-Voltage Terminal Strip

> 24 VAC Auxiliary Device Relay

> Auxiliary Proving Switch Contacts

> Alarm on Any Failure Contacts

> Runtime Contacts

> DHW Thermostat Contacts

> Unit Enable/Disable Contacts

> System Sensor Contacts

> DHW Tank Sensor Contacts

> Outdoor Air Sensor Contacts

> Cascade Contacts

> 0-10V DC BMS External Control

Contact

> 3 Way Valve Contacts

Standard Features

87% Thermal Efficiency (AHRI)

Modulating Burner with 5:1 Turndown

Outdoor Ready

CSD-1 Compliant

Direct-Spark Ignition

Low NOx Operation

Sealed Combustion

160 psi Working Pressure

On/Off Switch

Adjustable High Limit with Manual Reset

Condensate Trap w/Blocked Drain

Switch

Drain Valve

System Sensor

Outdoor Air Sensor

Inlet & Outlet Temperature Sensors

High-Voltage Terminal Strip

Low-Voltage Terminal Strip

50 psi ASME Relief Valve

Temperature & Pressure Gauge

Zero Clearances to Combustible Materials

Low & High Manual Reset Gas

Pressure Switches

10-Year Limited Warranty

(See Warranty for Details)

1-Year Warranty on Parts

(See Warranty for Details)

Smart Touch™ Features

CON·X·US Remote Connect

Full-Color 8” Touchscreen LCD Display

Built-in Cascading Sequencer for up to

8 Boilers

> Built-in Redundancy

> Cascade Multiple Sized Boilers

> Lead/Lag Cascade

> Efficiency Optimized Cascade

Front-End Loading Capability with

Crest Boilers

Building Management System

Integration with 0-10 VDC Input

Outdoor Reset Control

Password Security

Domestic Hot Water Prioritization

> DHW tank piped with priority in the

boiler loop

> DHW tank piped as a zone in the

system with the pumps

controlled by the Smart System

> DHW Modulation Limiting

> Separately Adjustable SH/DHW

Switching Times

Low Water Flow Safety Control &

Indication

Inlet & Outlet Temperature Readout

Freeze Protection

Service Reminder

Time Clock

Data Logging

> Hours Running, SH

> Hours Running, DHW

> Hours Running, Modulation Rate

> Ignition Attempts

> Last 10 Lockouts

AHRI Net AHRI

Model Input Thermal Output Rating

Number MBH Efficiency MBH MBH A B C D E F G

PBN2500 2,500 87.0% 2,175 1,891 59” 44-1/2” 29-3/4” 49-3/4” 4” 15” 16”

PBN3000 3,000 87.0% 2,610 2,270 65” 44-1/2” 29-3/4” 55-3/4” 4” 15” 16-1/4”

PBN3500 3,500 87.0% 3,045 2,648 70-1/4” 47-1/4” 29-3/4” 62-1/2” 8-1/4” 15” 16-1/4”

PBN4000 4,000 87.0% 3,480 3,026 79-3/4” 47-1/4” 29-3/4” 68-3/4” 8-1/4” 15” 16-1/4”

PBN5000 5,000 87.0% 4,350 3,783 93-1/4” 46-3/4” 32-3/4” 82-1/4” 10” 17-3/4” 17-1/2”

Ship

Model Gas Air Vent Wt.

Number H J K L M N P Q Conn. Inlet Outlet (lbs)

PBN2500 9” 20-1/4” 37” 8-3/4” 23” 21-1/4” 12” N/A 2” 9” 9” 1,470”

PBN3000 9” 20-1/4” 43” 8-3/4” 23” 21-1/4” 12” N/A 2” 9” 10” 1,550”

PBN3500 9” 20-1/4” 48-1/2” 9” 23” 21-1/4” 12” N/A 2” 10” 10” 1,696”

PBN4000 10-1/2” 20” 54” 8-3/4” 22-1/4” 21-1/4” 12” 58-1/2” 2-1/2” 10” 12” 1,841”

PBN5000 11” 23-1/2” 65-1/2” 11-1/2” 22” 24” 13-1/4” 69-1/2” 2-1/2” 12” 14” 2,152”

Notes: Change ‘N’ to ‘L’ for LP Gas Model. No deration on LP models. All water connections are 2-1/2” *w/CAT II conversion kit

Optional Equipment

Alarm Bell

Outdoor Kit

Low Temperature Valve

Motorized Mixing Valve

BMS Gateway to LON or BACnet IP

BACnet MSTP Communications

Modbus Communications

Cupro-Nickel Heat Exchanger

Wireless Outdoor Sensor

Low Water Cutoff

w/ Manual Reset & Test

Electrical Options (shipped loose)

> 208V/3PH/60 Hz (PB5000)

> 480V/3PH/60 Hz (PB3500-4000)

> 600V/3PH/60 Hz (PB3500-4000)

Power-Fin Boiler Dimensions and Specifications

The Original Boiler Continues to Set the Standard

In 1986, Power-Fin® redefined the industry with its space-saving

design, groundbreaking

efficiency and venting

flexibility. Now, over 30

years later, we continue

to raise the standard

with an easy-to-operate

touchscreen user interface,

remote boiler control and

enhanced communications.

The advanced SMART

TOUCH™ color display

includes CON·X·US

remote connectivity via

WiFi or Ethernet for easy

control at your fingertips,

from anywhere. And a simple drop-in Modbus or BACnet card

allows for easy integration into a Building Management System.

Enhanced Operating Control

The Power-Fin now offers the industry-best

SMART TOUCH™ 8˝ LCD full color touchscreen

with easy-to-understand infographics. It is equipped

with CON·X·US® connectivity that lets you remotely

monitor and optimize the performance of the entire

boiler plant.

500,000 to 2,000,000 Btu/hr models

Starting with the introduction of Power-Fin product

line in 1986, we were able to provide something

that other companies weren’t focused on, efﬁciency

and footprint. Now, 30 years later, we are proud to

continue that tradition and provide some of the most

efﬁcient products on the market.

Burner Modulation Boosts Efficiency and Lowers Costs

With thermal efficiency of 85%, Power-Fin boilers feature a 5:1 turndown ratio that will precisely match

the firing rates to heating load requirements—at any point from 20% to full firing rate. This results in less

equipment cycling for greater efficiency and cost savings.

Ready for Outdoor Installation

In warm-weather sites where the mechanical room is overcrowded, the Power-Fin can be easily installed

either outdoors or on a rooftop. Its optional hood and screen protector make outdoor installation fast and

trouble free.

Venting Solutions

The Power-Fin offers seven venting options for ease of installation and venting exibility to meet the most

challenging installation requirements. The Power-Fin permits air intake and exhaust lengths up to 100 ft,

allowing terminations to be horizontal through a sidewall or vertical through a roof. Consult the installation

and operation manual for detailed venting guidelines.

Power-Fin® Boiler Dimensions & Specifications

500,000 - 2,000,000 Btu/hr models

Registered under U.S. Patent # 7,506,617

Three Pump Control

> System Pump

> Boiler Pump

> Domestic Hot Water Pump

High Voltage Terminal Strip

> 120 VAC / 60 Hertz /

1 Phase Power Supply

> Three sets of Pump Contacts

with Pump Relays

Low Voltage Terminal Strip

> 24 VAC Auxiliary Device Relay

> Auxiliary Proving Switch

Contacts

> Flow Switch Contacts

> Alarm on Any Failure Contacts

> Runtime Contacts

> DHW Thermostat Contacts

> Room Thermostat Contacts

> System Sensor Contacts

> DHW Tank Sensor Contacts

> Outdoor Air Sensor Contacts

> Cascade Contacts

> 0-10 VDC BMS External

Control Contact

Standard Features

85% Thermal Efficiency

Modulating Burner with 5:1 Turndown

> Hot Surface Ignition

> Low NOx Operation

> Sealed Combustion

> Low Gas Pressure Operation

Vertical & Horizontal Venting

> Venting up to 50 Feet

> Category I or Category IV Venting

> Cat IV converts to Cat II

w/ optional vent kit

ASME Copper-Finned Tube

Heat Exchanger

> ASME Certified, “H” Stamped

> Gasketless design

> 160 psi working pressure

On/Off Switch

Adjustable High Limit w/ Manual Reset

Flow Switch

Low Air Pressure Switch

Downstream Test Cocks

50 psi ASME Relief Valve

Combustion Air Filtration

Temperature & Pressure Gauge

Zero Clearances to Combustible Material

1 Year Warranty on Parts

10 Year Limited Warranty

(See Warranties for Details)

Smart System Features

SMART SYSTEM Operating Control

> 2 line, 16 Character Display

> Dual Level Password Security

> Domestic Hot Water Prioritization

> Built in Cascading Sequencer

for up to 8 Boilers

> Building Management System

Integration with 0-10 VDC Input

> Outdoor Reset Control

with Outdoor Air Sensor

> Low Water Flow Safety Control & Indication

> Inlet & Outlet Temperature Readout

> Freeze Protection

> Service Reminder

> Time Clock

Data Logging

> Hours Running, Space Heating

> Hours Running, Domestic Hot Water

> Ignition Attempts

> Last 10 Lockouts

Programmable System Efficiency

Optimizers

> Night Setback

> Anti-Cycling

> Outdoor Air Reset Curve

> Ramp Delay

> Boost Temperature & Time

B9/F9 Net AHRI M9 Net AHRI

Model Input Thermal Output Rating Thermal Output Rating B9/F9 M9

Number MBH Efficiency MBH MBH Efficiency MBH MBH A B C D E E F G

PBN0502 500 85.0% 425 370 85.0% 425 370 44-1/2” 28-1/2” 23-1/4” 34” 17-3/4” 19-1/2” 6-1/2” 6”

PBN0752 750 85.0% 638 554 85.0% 638 554 52” 28-1/2” 23-1/4” 41-1/2” 17-3/4” 19-1/2” 6-3/4” 6”

PBN1002 999 85.0% 850 739 85.0% 850 739 59-1/4” 28-1/2” 23-1/4” 48-3/4” 17-3/4” 19-1/2” 7-1/4” 6”

PBN1302 1,300 85.0% 1,105 961 85.0% 1,105 961 67-3/4” 28-1/2” 23-1/4” 57-1/4” 17-3/4” 19-1/2” 8-1/4” 6”

PBN1501 1,500 84.0% 1,260 1,096 85.0% 1,275 1,109 65-1/2” 29-3/4” 27-1/4” 58-3/4” 21” 21” 13-1/2” 8”

PBN1701 1,700 84.0% 1,428 1,242 85.0% 1,445 1,257 70” 29-3/4” 27-1/4” 63-1/4” 21” 21” 13-1/2” 8”

PBN2001 2,000 84.0% 1,680 1,461 85.0% 1,700 1,478 76-3/4” 29-3/4” 27-1/4” 70” 21” 21” 13-1/2” 8”

Vent Sizes Ship

Model B9/F9 M9 Gas Air B9/F9 M9* M9 Wt.

Number H J K L M N P P Conn. Inlet Cat I Cat II Cat IV (lbs)

PBN0502 8” 7-3/4” 23” 11-1/2” 11-1/4” 17-1/2” 15-1/4” 15-1/4” 1” 5” 7” 7” 4” 505

PBN0752 8” 7-3/4” 30-1/2” 11-1/2” 11-1/4” 17-1/2” 15-1/4” 15-1/4” 1-1/4” 5” 9” 9” 5” 554

PBN1002 8” 7-3/4” 37-3/4” 11-1/2” 11-1/4” 17-1/2” 15-1/4” 15-1/4” 1-1/4” 6” 10” 10” 6” 603

PBN1302 8” 7-3/4” 46-1/4” 11-1/2” 19-1/2” 17-1/2” 15-1/4” 15-1/4” 1-1/4” 6” 12” 12” 8” 652

PBN1501 10” 9-1/2” 43-1/2” 5-3/4” 22-1/4” 21-1/2” 24-1/2” 19-1/2” 1-1/2” 6” 12” 8” 6” 1,065

PBN1701 10” 9-1/2” 48” 5-3/4” 25” 21-1/2” 24-1/2” 19-1/2” 1-1/2” 7” 14” 9” 7” 1,100

PBN2001 10” 9-1/2” 54-3/4” 5-3/4” 27-1/2” 21-1/2” 24-1/2” 19-1/2” 1-1/2” 8” 14” 10” 8” 1,127

Notes: Change ‘N’ to ‘L’ for LP Gas Model. No deration on LP models. All water connections are 2-1/2” *w/CAT II conversion kit

Firing Control Systems

M Indicates 5:1 Turndown, Category IV

B Indicates 2:1 Turndown, Category I

F Indicates 100% On/Off Fire, Category I

Optional Equipment

Alarm Bell

Wireless Outdoor Sensor

Cupro-Nickel Heat Exchanger

High & Low Gas Pressure Switches

w/ Manual Reset (Req. for CSD-1/FM/GE Gap)

Low Water Cutoff

w/ Manual Reset & Test (Req. for California Code)

Modbus Communication

BMS Gateway - BACnet or LonWorks

Vent Kits:

- Horizontal Exhaust Cap

- Horizontal Air Intake Cap

- Horizontal Direct Vent Kit

- Category IV to Category II

Conversion Kit

Smart System PC Kit

Power-Fin Boiler Dimensions and Specifications

The Foundation of Lochinvar Becomes Stronger

Copper-finned tube, non-condensing appliances are the

foundation of Lochinvar’s success. In 1993, Lochinvar

introduced the Copper-Fin II, the first horizontal chassis,

copper-finned tube boiler to operate with fan-assisted

combustion. Now, the Copper-fin II is even better.

Along with high thermal efficiency, gasketless heat

exchangers and multiple venting options we have added

Lochinvar’s exclusive SMART SYSTEM™ control.

Nine models from 399,999 to 2,070,000 Btu/hr input

provide you with exceptional products with a long

list of new features in addition to the established features which redefined the industry. The Copper-fin II was the first

proportional fired, fan-assisted boiler on the market. Every model features a small footprint for easy passage through a

36” door, low NOx – third party tested to less than 20 PPM, Stack Frames that can put twice the Btu/hr input in the same

space and vent diameters up to 8” smaller than conventional atmospheric boilers.

SMART SYSTEM Puts More Control and Information at Your Fingertips

The most exciting addition to the Copper-Fin II is the SMART SYSTEM control. The SMART SYSTEM is an advanced,

state of the art integrated operating control. We introduced the SMART SYSTEM control in 2005 and it has delivered proven

operation in thousands of demanding commercial applications. The control provides the installer, owners and operators with

precise temperature control and diagnostic information.

Advanced features include:

• 2-Line, 16 character LCD display of setup, system status and diagnostic data in words, not codes

• Built-in cascade sequencer controlling up to 8 boilers

• Outdoor reset adjusts setpoint based on reset curve

• Domestic hot water prioritization allows the boiler to provide space heating and produce domestic hot

water all in one system

• 0-10 VDC BMS input to control boiler operation

• Modbus protocol - optional

Proportional Firing

Proportional firing divides a single manifold of multiple burners into smaller, independent stages.

With up to four stages of individual operation, the Smart System control can reduce the firing rate down to approximately 25%

Btu/hr input. This simple but effective design matches the boiler’s firing capacity to the constantly changing system demand.

Full Fire or On/Off combustion systems often fire the entire gas train in short, inefficient bursts. Stage firing delivers the Btu’s

required in smoother and longer burn cycles which will improve operation and reduce component fatigue.

Gasketless Heat Exchanger

In 1989, Lochinvar was the first water heater manufacturer to offer gasketless cast iron & copper-finned tube heat

exchangers. Our unique gasketless design enhances reliability by eliminating O-rings and gaskets found on other brands.

The heat exchanger features glass lined headers and copper-finned tubes with extruded integral fins spaced 7-fins per inch

for exceptional heat transfer. The heat exchanger is built to ASME construction standards for 160 psi working pressure

and is backed by a ten year limited warranty.

Venting Options

Vents into

conventional

flue or vent

breaching using

Type B double

wall vent.

Vents directly

through the outside

wall using an

optional powered

sidewall cap. Ideal

when a vent stack

is not practical.

Requires optional

outdoor vent cap.

Use when indoor

space is a problem

or if outdoor

location gives

better access.

Draws fresh air

from outside and

vents through

conventional

vertical flue.

Draws fresh air

from outside

and vents

through sidewall

using optional

powered vent

cap.

Draws fresh air

50 equivalent feet

from a sidewall.

Vents horizontally

up to 50 equivalent

feet through the

sidewall.

Draws fresh air from

inside the room. Vents

up to 50 equivalent

feet

directly through

the outside wall

without the need for a

powered sidewall cap.

Draws fresh

air from

outside and

vents through

conventional

vertical flue.

Conventional

Powered Sidewall DirectAire Vertical Power DirectAire Horizontal Aire-Lock Direct Vent

Sidewall DirectAire Vertical w/ Sidewall Outdoor

Copper-Fin II® Boiler Dimensions & Specifications

Net AHRI

Model Input Thermal Output Rating Vent Air Gas Ship

Number MBH Efficiency MBH MBH A B C D E F G H Size Inlet Conn. Wt. (lbs)

CHN0402 399 85% 339 295 31-1/2” 37-3/4” 22-1/4” 12-1/2” 7” 7” 29” 6-1/2” 6” 6” 1-1/4” 378

CHN0502 500 85% 425 370 31-1/2” 45-1/2” 22-1/4” 12-1/2” 7” 7” 29” 6-1/2” 6” 6” 1-1/4” 414

CHN0652 650 85% 553 481 31-1/2” 56-3/4” 22-1/4” 12-1/2” 8-1/2” 8-1/4” 29” 6-1/2” 8” 8” 1-1/4” 500

CHN0752 750 85% 638 555 31-1/2” 64” 22-1/4” 12-1/2” 8-1/2” 8-1/4” 29” 6-1/2” 8” 8” 1-1/4” 543

CHN0992 990 85% 842 732 36” 48-1/4” 33-1/2” 15-3/4” 8-1/2” 8-1/2” 33-3/4” 8-3/4” 10” 10” 2” 773

CHN1262 1,260 85% 1,071 931 36” 58-1/2” 33-1/2” 15-3/4” 10-1/2” 9-1/2” 33-3/4” 8-3/4” 12” 12” 2” 863

CHN1442 1,440 85% 1,224 1,064 36” 68-3/4” 33-1/2” 15-3/4” 10-1/2” 10-1/2” 33-3/4” 8-3/4” 12” 12” 2” 965

CHN1802 1,800 85% 1,530 1,330 36” 82-1/4” 33-1/2” 15-3/4” 11” 11” 33-3/4” 8-3/4” 14” 12” 2” 1,100

CHN2072 2,070 85% 1,760 1,530 36” 92-1/2” 33-1/2” 15-3/4” 11” 11” 33-3/4” 8-3/4” 14” 12” 2” 1,219

Notes: Change ‘N’ to ‘L’ for LP gas models. No deration on LP models Water connections for models CH 0402-0752 are 2” NPT on 6-1/2” centers.

Header increases “B” dimension 3-1/2” for models CH 0402-0752 and 6-1/4” for models CH 0992-2072. Water connections for models CH 0992-2072 are 2-1/2” NPT on 11-1/4” centers.

GAS CONNECTION

0992-2072

GAS CONNECTION

0402-0752

OUTLET INLET

AINLET AIR

FILTER

Copper-Fin II Heating Boiler Dimensions & Spec i fi ca tions

Standard Features

85% Thermal Efficiency

Proportional Firing up to 4:1 Turndown

Hot Surface Ignition

Low NOx Operation

Sealed Combustion

Low Gas Pressure Operation

Vertical & Horizontal Venting

Category I Venting

Double Wall “B” Vent Material

Category IV Venting

AL29-4C Stainless Steel Vent Material

ASME Copper Finned Tube Heat Exchanger

ASME Certified, “H” Stamped

Gasketless design

160 psi working pressure

On/Off Switch

Combustible Floor Rated (0992 - 2072)

Adjustable High Limit w/ Manual Reset

Flow Switch

Low Air Pressure Switch

Inlet & Outlet Temperature Sensors

Easy Access Terminal Strips

Downstream Test Cocks

50 psi ASME Pressure Relief Valve

Temperature & Pressure Gauge

1 Year Warranty on Parts (See Warranty for Details)

10 Year Limited Warranty (See Warranty for Details)

Smart System™ Features

SMART SYSTEM™ Operating Control

2 Line/16 Character LCD Display

Built in Cascading Sequencer for up to 8 boilers

Front End Loading with Crest or KNIGHT boilers

Building Management System Integration

with 0-10 VDC Input

Outdoor Reset Control with Outdoor Air Sensor

Password Security

Domestic Hot Water Prioritization

Low Water Flow Control & Indication

Inlet & Outlet Temperature Readout

Freeze Protection

Service Reminder

Time Clock

0-10 VDC Rate Output

Condensing Protection

0-10 VDC System Pump Speed Input

Data Logging

Hours Running, Space Heating

Hours Running, Domestic Hot Water

Ignition Attempts

Last 10 Lockouts

Programmable System Efficiency Optimizers

Night Setback

Anti-Cycling

Outdoor Air Reset Curve

Boost Temperature & Time

Certifications

ANSI Z21.13/CSA 4.9 certified

South Coast Air Quality Management District registered

Texas Commission on Environmental Quality

Three Pump Control

System Pump

Boiler Pump

Domestic Hot Water Pump

High Voltage Terminal Strip

120 VAC / 60 Hertz / 1 Phase Power Supply

Pump Contacts with Pump Relay

Low Voltage Terminal Strip

24 VAC Auxiliary Device Relay Output - Louvers

Auxiliary Proving Switch Contacts - Louvers

3-way Valve Contacts for Low

Temperature Protection

Alarm on Any Failure Contacts

0-10 VDC System Pump Speed Contacts

Runtime Contacts

DHW Thermostat Contacts

DHW Tank Sensor Contacts

Unit Enable/Disable Contacts

System Sensor Contacts - Supply and Return

Outdoor Air Sensor Contacts

Contacts for Air Louvers

Contacts on Any Failure

Cascade Contacts

0-10 VDC BMS External Control Contact

0-10 VDC Rate Contacts

Optional Equipment

Alarm Bell

High & Low Gas Pressure Switches w/ Manual Reset

Cupro-Nickel Heat Exchanger

Low Water Cut Off, Probe Type w/ Manual Reset & Test

Modbus Communications

BMS Gateway - BACnet or LonWorks

Combustible Floor Kit (0402-0752)

Stack Frame

Thermal Static Low Temperature Protection Valve

Outdoor Vent Cap

Firing Codes

M7 Firing Code - California Code

M9 Firing Code - Hot Surface Ignition

with Electronic Supervision

M13 Firing Code - CSD1 / Factory Mutual / GE Gap

Registered under U.S. Patent # 5,989,020

Lochinvar first introduced Copper-Fin technology to the

boiler industry some 50 years ago. Since then, we’ve

continued to refine and perfect it - adding advanced

fan-assisted combustion, hot surface ignition, a unique

gasketless cop per finned tube heat ex chang er and highly

efficient insulating materials.

Installation Flexibility and Cost-Savings

With compact sizes that use less floor space than ever

before, all Copper-Fin units are narrow enough to fit

through a standard 36” doorway – an ad van tage most

commercial boilers can’t provide. Plus, thanks to special

insulating materials, Copper-Fin units require only 3”

clearance from combustible walls. What’s more, our

Stack Frame allows you to install two units in the area

normally required for one. This makes it easier to fit

multiple Copper-Fin boilers into cramped me chan i cal rooms. And you can even use a smaller diameter vent stack - up to 8” smaller

than typically required for comparable atmospheric boilers - so it saves money as well as valuable mechanical room space.

Unique Copper-Fin Heat Ex chang er

The Lochinvar Copper-Fin boiler design uses a two pass heat ex chang er. Water is circulated through a row of

high ly-efficient, finned copper tubes. The high rate of water flow creates a scour ing action that prevents sed i-

ment and lime-scale buildup, common in conventional boilers, and the finned copper tubes allow maximum

heat transfer efficiency. To create this special heat transfer capability, Lochinvar extrudes the fins from

thick wall copper tubing to precise specifications - ex act ly 7 fins per inch. The result is an integrally-

finned tube with a heat transfer ratio 9 times greater than a plain copper tube.

Heavy-Duty Gasketless Design

What’s more, advanced casting processes allowed Lochinvar to develop a unique one-piece

header system. This gasketless design provides enhanced reliability, improved durability and

optimum performance - without the problems or failures common with O-rings and gaskets.

Meets the Toughest Air Quality Standards

Because of our unique fan-assisted combustion process, the Copper-Fin exceeds today’s toughest NOx emissions requirements. An

independent certification laboratory test gave us a rating of less than 20 ppm - corrected to 3% O2. And less NOx means a cleaner

environment.

Enhanced to Provide Performance and Serviceability

Our enhanced Copper-Fin models offer the same reliable operation, and feature a more service friendly

design. The down stream test valves and referenced gas valves are now in the upper deck for easier

access, and the electrical and BMS connections have been repositioned to the front of the unit for easier

installation.

The gas valves, which are referenced to the sealed combustion chamber, improve operational performance

by monitoring the pressure in the sealed combustion chamber and adjusting gas flow to maintain the

optimum air/fuel mixture. And the built-in air inlet filter reduces maintenance and improves performance

by trapping dust and airborne particulates that can foul the burners and blowers.

With dual sight glasses (one on each end), you can easily monitor burner performance and flame

characteristics throughout the entire combustion chamber.

The operator interface panel provides two-stage electronic temperature control and comprehensive

diagnostic status without opening the control panel. Its user friendly design simplifies service while

providing additional diagnostic information through a series of LEDs.

Copper-Fin®

Energy Efficient, Cost Effective Boilers

Copper-Fin® Boiler Dimensions & Specifications

Copper-Fin®

Standard Features

81% Thermal Efficiency

Electronic Temperature Control

Fan Assisted Combustion

Sealed Combustion Chamber

Stainless Steel Burners

Low NOx Operation Exceeds the most

Stringent Air Quality Requirements

ASME Copper Finned Tube

Heat Exchanger

160 psi Working Pressure

Gasketless Heat Exchanger Design

Pump Relay w/ Delay

Down Stream Test Valve

Referenced Gas Valves

Loch-Heat Ceramic Tile

Combustion Chamber

Hot Surface Ignition

Adjustable High Limit w/ Manual Reset

ASME Pressure Relief Valve

Temperature & Pressure Gauge

Flow Switch

24 Volt Control System

BMS Terminal Strip

Combustion Air Filter

Freeze Protection

10 Year Limited Warranty on Heat Exchanger

(See warranty for details)

Optional Equipment

Alarm Bell

Contacts on any Failure & Runtime

Contacts for Air Louvers

Cupro-Nickel Heat Exchanger

High & Low Gas Pressure Switch

w/ Manual Reset

Outdoor Reset Control

Manual Reset Low Water Cut-Off

w/ test

Stack Frame

MP2 Sequencer

Outdoor Vent Cap

Available Firing Systems

M9 Hot Surface Ignition with

Electronic Supervision (Standard)

M13 GE GAP/FM/CSD1

M7 California Code

Registered under U.S. Patent # 5,989,020

Copper-Fin Heating Boiler Dimensions & Spec i fi ca tions

Input Heating Net AHRI

Model Max Thermal Capacity Rating Gas Vent Ship

Number MBH Efficiency MBH MBH A B C D E F G Conn. Size Wt.(lbs)

CBN0497 495 81% 401 349 31-1/2” 45-1/4” 22-1/4” 12-1/2” 9-1/2” 22-3/4” 29-1/2” 1-1/4” 6” 440

CBN0647 645 81% 522 454 31-1/2” 56-3/4” 22-1/4” 12-1/2” 9-1/2” 28-1/2” 29-1/2” 1-1/4” 8” 510

CBN0747 745 81% 603 524 31-1/2” 64” 22-1/4” 12-1/2” 9-1/2” 32” 29-1/2” 1-1/4” 8” 550

CBN0987 985 81% 798 694 36” 48-1/4” 33-1/2” 15-3/4” 8-1/2” 8-1/2” 33-3/4” 2” 10” 845

CBN1257 1255 81% 1,017 884 36” 58-1/2” 33-1/2” 15-3/4” 9-1/2” 10-1/2” 33-3/4” 2” 12” 905

CBN1437 1435 81% 1,162 1,010 36” 68-3/4” 33-1/2” 15-3/4” 10-1/2” 10-1/2” 33-3/4” 2” 12” 1050

CBN1797 1795 81% 1,454 1,264 36” 82-1/4” 33-1/2” 15-3/4” 11” 11” 33-3/4” 2” 14” 1193

CBN2067 2065 81% 1,673 1,455 36” 92-1/2” 33-1/2” 15-3/4” 11” 11” 33-3/4” 2” 14” 1350

Notes: Change ‘N’ to ‘L’ for LP gas models. Water connections for models CB 0497-747 are 2” NPT on 6-1/2” centers.

No deration on LP models. Water connections for models CB 0987-2067 are 2-1/2” NPT on 11-1/4” centers.

Lightweight, Flexible and

Energy Efficient

Copper-Fin® gas-fired atmospheric boilers are

high-efficiency boilers that save space, save

money, are lightweight, and are simple to service

and install. Copper-Fin boilers are equipped with

a built-in draft hood, a highly efficient copper

finned tube heat exchanger, our own specially

designed two-stage electronic control system, and

they are approved for installation on combustible

floors. Models are available with inputs from

315,000 to 500,000 Btu/hr.

Two-Stage Control System

The boiler’s two-stage electronic temperature control provides flexibility and saves fuel by

closely matching heat output to system demand. On colder days the boiler fires at full output, and

in warmer conditions the boiler reduces heat output to save energy and reduce boiler cycling.

During the majority of the heating season, less than full boiler output is required to satisfy the

heat load. For this reason, Lochinvar has developed a two-stage firing system. Two-stage firing -

standard equipment on all Copper-Fin boilers, provides dramatic fuel savings by reducing the firing rate 50%. And the

two-stage firing control is ideal for applications utilizing indoor/outdoor reset.* *I/O reset is available as an option.

Copper Finned Tube Heat Transfer

The heart of the Copper-Fin boiler is its copper finned-tube heat exchanger.

With this unique gasketless design, we’ve combined the best of both worlds:

cast iron headers for long-lasting durability, and a copper finned-tube heat

exchanger for high efficiencies and fast heat transfer. The gasketless

heat exchanger design reduces the risk of leaks or system failures that

are common with conventional boilers. Plus, the unit’s low-mass design

means that water gets heated quickly. Not only is heat up time nearly

instantaneous with these boilers, the energy consumption and operating

costs are lower too.

Intermittent Ignition Device

The Intermittent Ignition Device is a solid-state electronic spark-to-pilot ignition system that reduces fuel

consumption. Its electronic circuitry continuously monitors the system and provides pilot gas only when there

is a call for heat, eliminating the need for a continuously burning pilot, and providing an additional measure of

operational safety.

Built-In Draft Hood

The lower overall height of the draft hood makes it easier to install the Copper-Fin boiler in all applications,

especially in those instances where overhead space is limited and headroom restrictions exist.

Serviceability

This boiler is as flexible and convenient to install and service as it is efficient and compact. The heavy-duty stainless

steel burners can easily be adapted for use with either natural or liquefied petroleum (LP) gas, and the boiler’s design

allows for easy access to all major components for servicing. The heat exchanger is designed to slide out the front of

the boiler for faster maintenance, and Lochinvar backs it up with an exclusive 10-year Limited Warranty. For more

information, call your Lochinvar dealer today.

Copper-Fin®

82%

Copper-Fin® Boiler Dimensions & Specifications

Copper-Fin®

Standard Features

82% Thermal Efficiency

ASME Copper Finned Tube Heat Exchanger

Gasketless Heat Exchanger Design

Two Stage Intermittent Electronic Ignition

160 PSI Working Pressure

Pump Relay

Two Stage Solid State Temperature Control

Two Stage Gas Valve with Built-In

Manual Shut-Off

Automatic Reset High Limit

ASME Pressure Relief Valve

Temperature & Pressure Gauge

Diagnostic Flash Codes

Built-In Draft Diverter

CSA Design Certified for Alcove Installation

CSA Design Certified for Installation

on Combustible Floor

Stainless Steel Burners

Loch-Heat Ceramic Tile Combustion Chamber

24 Volt Control System

10 Year Limited Warranty on Heat Exchanger

(See warranty for details)

Optional Equipment

Adjustable High Limit

w/ Manual Reset

Contacts on any Failure

Contacts for Air Louvers

Flow Switch

Outdoor Air Reset Control

Low Water Cut-Off

Stack Frame

Pump Delay/Freeze Protection

MP2 Sequencer

3-Way Low Temperature Valve

Net AHRI

Model Input Thermal Output Rating Gas Vent Ship.

Number MBH Efficiency MBH MBH A B C D Conn. Size Wt.(lbs)

CBN315 315 82.0% 258 224 29-1/2” 32-1/4” 21-1/2” 16-1/4” 3/4” 8” 245

CBN360 360 82.0% 295 257 29-1/2” 35-1/4” 21-1/2” 17-3/4” 1” 9” 255

CBN399 399 82.0% 328 285 29-1/2” 44-1/2” 22” 22-1/4” 1” 10” 320

CBN500 500 82.0% 410 357 34-1/2” 52-1/2” 22” 26-1/4” 1” 10” 345

Notes: Change ‘N’ to ‘L’ to denote L.P. gas models

No deration for L.P. models.

Water Connections are 2” NPT on 6-1/4” centers.

Performance data is based on manufacturer test results.

Copper-Fin Boiler Dimensions & Spec i fi ca tions

Firing Controls

M9 - Two-Stage Intermittent

Spark Ignition (Standard)

M13 - GE GAP/FM/IRI

M7 - California Code

The Best You Can Buy

KNIGHT® is recognized for its reliable, proven performance and high quality standards. Its

award winning design assures contractors and home owners peace of mind and long term

savings in operating costs.

Lochinvar has raised the KNIGHT standard to even greater heights. The SMART

SYSTEM™ control with color display gives installers and maintenance personnel a greater

level of control than ever before. It’s easy to access all the information they need to setup,

troubleshoot and monitor all boiler functions. Additionally, two cascading options allow

the installer to fine-tune sequencing of multiple boiler installations.

More than ever, KNIGHT is the best choice for traditional hydronic space heating, radiant

floor heating and indirect domestic hot water applications.

Control

The SMART SYSTEM™ is the most advanced

integrated boiler control on the market today.

Now the CON·X·US® mobile communication

platform allows SMART SYSTEM to go where no

other boiler has gone before.†

CON·X·US provides the ability to monitor and manage multiple KNIGHT heating

boilers without ever stepping into the mechanical rooms. CON·X·US will send

alerts via text or e-mail notifying of changes in system status, and anytime, from

anywhere, a user can check system status and re-program any boiler function. Once

downloaded, the free CON·X·US mobile application allows for remote access to all

SMART SYSTEM functions using an internet-capable device.

Built-in Cascading Sequencer

When multiple KNIGHT boilers are installed together, the SMART SYSTEM

built-in sequencer can be set for “Lead-Lag” cascade or “Efficiency Optimized”

cascade operation.

Advanced Negative Regulation

Technology

KNIGHT safely and reliably operates with supply gas pressures as low as 4 inches

water column. Plus “Neg/Reg” technology automatically adjusts gas pressure to

ensure the correct volume of fuel and air entering the burner.

Direct-Spark Ignition

With each call for heat, two electrodes ignite the fuel/air mixture. A third electrode

then senses for flame. The SMART SYSTEM will generate a soft lockout and

display a fault if ignition does not occur.

Fully Modulating Burner with 5:1 Turndown

The SMART SYSTEM allows fully modulating combustion with 5:1 turndown. The

burner can fire as low as 20% of maximum input and modulates the firing rate up to

100% as demand increases. A woven stainless steel mesh enclosed burner tube fires in

a 360° pattern along the entire length of the primary heat exchanger.

Two-in-One Stainless Heat Exchanger

A primary heat exchanger combined with a secondary heat exchanger captures

flue gas heat and condenses to utilize available latent energy. The stainless steel,

pH-tolerant design features a weld-sealed assembly with no O-rings or gaskets and

does not require special glycol. ASME Section IV approved and stamped.

† CON·X·US control board

sold separately

Models:

KBN 081-211

Model:

KBN286

KNIGHT® Boiler Dimensions & Specifications

Knight Heating Boiler

Input Heating NET AHRI

Model Min. Max. Capacity Rating

Number MBH MBH AFUE MBH MBH

KBN081 16 80 95.0% 74 64

KBN106 21 105 95.0% 97 84

KBN151 30 150 95.0% 139 121

KBN211 42 210 95.0% 196 170

KBN286 57 285 95.0% 267 232

A C D E F G H I J K Gas Water Air Vent Ship

Conn. Conn. Inlet Size Wt. (lbs)

33-1/4" 14" 7" 5-3/4" 5" 3" 20-1/2" 22" 1-3/4" 6-1/2" 1/2" 1" 3" 3" 125

33-1/4" 14" 6-1/2" 5-3/4" 4-1/2" 1-1/2" 20-1/2" 22" 1-3/4" 6-1/2" 1/2" 1" 3" 3" 129

33-1/4" 18" 12-1/4" 11-1/2" 10" 1-1/2" 21-1/4" 23" 1-3/4" 12" 1/2" 1" 3" 3" 157

33-1/4" 22-1/4" 16-1/2" 15-3/4" 14-1/4" 5-1/4" 21-1/4" 23" 1-3/4" 16-1/4" 1/2" 1" 3" 3" 172

42-1/4" 19-3/4" 12-3/4" 13-1/2" 6" 2" 34" 31" 11-3/4" 4-1/4" 3/4" 1-1/4" 4" 4" 224

Notes: Indoor installation only. All information subject to change. Change "N" to "L" for LP gas models.

Net ratings based on piping and pick-up allowance of 1.15

Dimensions and Specifications

Smart System™ Features

SMART SYSTEM Digital Operating Control

Multi-Color Graphic LCD Display

with Navigation Dial and Soft Keys

Three Setpoint Temperature Inputs

Built-in Cascading Sequencer for up to 8 Boilers

Cascade Multiple Sized Boilers

Lead Lag

Efficiency Optimization

Front End Loading Capability with Copper Fin II

Outdoor Reset Control with Outdoor Air Sensor

Programmable for Three Reset Temperature Inputs

Programmable System Efficiency Optimizers

Night Setback w/Override Function

DHW Night Setback w/Override Function

Anti-Cycling

Outdoor Air Reset Curve

Ramp Delay

Boost Temperature & Time

Three Pump Control

System Pump with Parameter for

Continuous Operation

Boiler Pump with Variable Speed Pump Control

Domestic Hot Water Pump

Domestic Hot Water Prioritization

DHW tank piped with priority in the boiler loop

DHW tank piped as a zone in the system with

the pumps controlled by the Smart System

DHW Modulation Limiting

Separately Adjustable SH/DHW Switching Times*

Building Management System Integration

0-10 VDC Input to Control Modulation or Set Point

0-10 VDC Modulation Rate Output

0-10 VDC Input Signal from Variable

Speed System Pump*

0-10 VDC Input to Enable/Disable call for heat

High-Voltage Terminal Strip

120 VAC / 60 Hertz / 1 Phase Power Supply

Three Sets of Pump Contacts

Low Voltage Terminal Strip

24 VAC Device Relay

Proving Switch Contacts

Flow Switch Contacts

Alarm on Any Failure Contacts

Runtime Contacts

DHW Thermostat Contacts

3 Space Heat Thermostat Contacts

System Sensor Contacts

DHW Tank Sensor Contacts

Outdoor Air Sensor Contacts

Cascade Contacts

0-10 VDC BMS External Control Contact

0-10 VDC Boiler Rate Output Contacts

0-10 VDC Variable Speed System Pump Signal Input

0-10 VDC Signal to Control Variable

Speed Boiler Pump

Modbus Contacts

Time Clock

Data Logging

Hours Running, Space Heating

Hours Running, Domestic Hot Water

Ignition Attempts

Last 10 Lockouts

Access to BMS Settings through Graphic LCD Display

Maintenance Reminder

Custom Maintenance Reminder with Contractor Info

Installer Ability to De-activate Service Reminder

Low-Water Flow Safety Control & Indication

Dual Level Password Security

Customizable Freeze Protection Parameters

Standard Features

Energy Star™ Qualified

95% DOE AFUE Efficiency

Modulating Burner with 5:1 Turndown

Direct-Spark Ignition

Low-NOx Operation

Field Convertible from Natural to LP Gas

ASME Stainless Steel Heat Exchanger

30 psi ASME Relief Valve

Vertical & Horizontal Direct-Vent

PVC, CPVC, Polypropylene or SS Venting up to 100 feet

Smart System Control

Condensate Trap

Other Features

Automatic Reset High Limit

Adjustable High Limit w/Manual Reset

Boiler Circulating Pump

Adjustable Leveling Legs

Zero Clearances to Combustible Materials

5-Year Parts Warranty

12-Year Limited Warranty (See Warranty for Details)

Optional Equipment

CON·X·US Remote Connect

Modbus Communication

Condensate Neutralization Kit

Multi Temperature Loop Control

Flow Switch

Low-Water Cutoff w/Manual Reset & Test

Alarm Bell

Concentric Vent Kit

Stack Frame

BMS Gateway - BACNet or LonWorks

Sidewall Vent Termination

Wireless Outdoor Sensor

Firing Codes

M9 Standard Construction

M7 California Code

*Exclusive feature available only from Lochinvar

The KNIGHT floor standing fire tube boiler features reduced installation footprint for

flexibility in boiler placement. Plus, all connections are on the top and left side, so KNIGHT

is an easy drop in replacement for older, less efficient boilers. Six models offer inputs from

55,000 to 285,000 Btu/hr.

Use Existing Piping to Reduce Costs

The KNIGHT fire tube boiler operates with low pressure drop. The design incorporates

a small volume of water in the heat exchanger. This allows the boiler to be installed in a

primary/secondary or a full-flow piped system. There is no need to change the piping to

accommodate the boiler. The boiler adapts to the system. This flexibility allows for a

faster, more cost-effective boiler upgrade.

10:1 Turndown Ratio Optimizes Performance

Modulation turndown up to 10:1 means the firing rate automatically changes as the heat

load varies. A KHN110 KNIGHT boiler fires at its maximum 110,000 Btu/hr rate when

load is highest, then “turns down” to as low as 10% (11,000 Btu/hr) as load decreases.

A modulating boiler runs smoothly and efficiently, without frequent on/off cycling

Safe, Reliable NEG/REG Technology

KNIGHT boilers can operate with low gas supply pressure. Negative Regulation uses a

pre-mix gas system instead of relying on utility pressure through the gas valve. The result

is steady operation in low gas pressure systems or when gas demand is highest. Automatic

fan control fine-tunes the air/fuel ratio, providing superior combustion throughout the

operating range.

Superior Direct Venting Flexibility

KNIGHT boilers can be installed with direct-vent air intake and exhaust

runs up to 100 equivalent feet, using PVC, CPVC, polypropylene or

AL29-4C stainless steel vent pipe.

Money-Saving 95% Efficiency and Easier than Ever to Install

BOILER CONTROL, FROM ANYWHERE.

From wherever you are, the CON·X·US® option lets you use any internet-capable device to

link up with the SMART SYSTEM™ on an unlimited number of KNIGHT boilers.

With CON·X·US, you’re always in touch and in control.

Optional CON·X·US control board is sold separately.

> Do regular CON·X·US

checks for all your KNIGHT

customers, and let them

know you’re monitoring

their boiler’s performance.

> Adjust setpoints, domestic

hot water, reset curves,

pump delays and more,

using the CON·X·US

interactive display.

> Status alerts via

text or e-mail let

you know when

a KNIGHT boiler

needs attention.

KNIGHT® Boiler Dimensions & Specifications

Knight Heating Boiler

Notes: Indoor installation only. All information subject to change. Change "N" to "L" for LP gas models.

Net ratings based on piping and pick-up allowance of 1.15

Dimensions and Specifications

Smart System™

Features

> Smart System Digital Operating Control

Multi-Color Graphic LCD Display w/Navigation Dial,

Soft Keys and Loch-N-Link™ USB programming

> Three Boiler Setpoint Temperature Inputs

Plus Domestic Hot Water Prioritization

> Built-in Cascading Sequencer for up to 8 Boilers,

with Cascade Redundancy

Multiple Size Boiler Cascade

Lead Lag

Efficiency Optimization

Front End Loading Capability

> Outdoor Reset Control with Outdoor Air Sensor

Programmable for Three Reset Temperature Inputs

> Programmable System Efficiency Optimizers

SH Night Setback

DHW Night Setback

Anti-Cycling

Outdoor Air Reset Curve

Ramp Delay

Modulation Factor Control

Boost Temperature & Time

> Four Pump Control

System Pump with Parameter for Continuous Operation

Boiler Pump with Variable Speed Control

Domestic Hot Water Pump

Domestic Hot Water Recirculation

> Domestic Hot Water Prioritization

DHW tank piped with priority in the boiler loop

DHW tank piped as a zone in the system with the pumps

controlled by the SMART SYSTEM

DHW Modulation Limiting

Separately Adjustable Space Heat/DHW Switching Times

> Building Management System Integration

0-10 VDC Input to Control Modulation or Setpoint

0-10 VDC Modulation Rate Output

0-10 VDC Input to Enable/Disable Call for Heat

> Access to BMS Settings through Graphic LCD Display

> High-Voltage Terminal Strip

120 VAC / 60 Hertz / 1 Phase Power Supply

Three Sets of Pump Contacts

> Low-Voltage Terminal Strip

DHW Recirculation Pump Start/Stop

24 VAC Device Relay

Proving Switch Contacts

Flow Switch Contacts

Alarm on Any Failure Contacts

Runtime Contacts

DHW Thermostat Contacts

3 Space Heat Thermostat Contacts

System Sensor Contacts

DHW Tank Sensor Contacts

Outdoor Air Sensor Contacts

Cascade Contacts

0-10 VDC BMS External Control Contact

0-10 VDC Boiler Rate Output Contacts

0-10 VDC Variable Speed System Pump Signal Input

0-10 VDC Signal to Control Variable Speed Boiler Pump

Modbus Contacts

> Time Clock

> Data Logging

Hours Running, Space Heating

Hours Running, Domestic Hot Water

Ignition Attempts

Last 10 Lockouts

> Maintenance Reminder

Custom Maintenance Reminder with

Contractor Contact Information

Installer Ability to De-activate Service Reminder

> Low-Water Flow Safety Control & Indication

> Password Security

> Customizable Freeze Protection Parameters

Standard Features

> ENERGY STAR Most Efficient Product

> 95% DOE AFUE Efficiency

> Modulating Burner with up to 10:1 Turndown

Direct Spark Ignition

Low NOx Operation

> ASME Stainless Steel Heat Exchanger

30 PSI ASME Relief Valve

> Vertical & Horizontal Direct Vent

PVC, CPVC, Polypropylene or SS Venting up to 100 feet

> Smart System Control

> Condensate Trap

> Other Features

Automatic Reset High Limit

Adjustable High Limit w/Manual Reset

Boiler Circulating Pump

Zero Clearances to Combustible Materials

12-Year Limited Warranty (See Warranty for Details)

5-Year Limited Parts Warranty

Optional Equipment

GAS CONNECTION

WATER INLET

CONDENSATE

DRAIN

WATER OUTLET

LOW-VOLTAGE

ELECTRICAL

CONNECTIONS

AIR INLET

HIGH-VOLTAGE

ELECTRICAL

CONNECTIONS

2-7/8"

2-3/4"

43-3/8"

16"

19"

FLUE

1/4" - 1-1/4"

ADJUSTABLE

Model

Number

Input MBH

AFUE

Heating

Capacity

MBH Net

MBH Gas

Connect. Water

Connect. Air

Inlet Vent

Size Ship. Wt.

(lbs)

Min Max A B C D E F G H I J

KHN055 8.2 55 95% 51 44 6" 8-3/8" 11-1/8" 10-1/2" 13-1/4" 37-1/2" 32-5/8" 32-1/4" 13-1/4" 3-3/8" 1/2" 1" 2" 2" 160

KHN085 8.5 85 95% 79 69 6" 8-3/8" 11-1/8" 10-1/2" 13-1/4" 37-1/2" 32-5/8" 32-1/4" 13-1/4" 3-3/8" 1/2" 1" 2" 2" 165

KHN110 11 110 95% 102 89 7-3/8" 9-3/4" 11-1/8" 10-5/8" 14-5/8" 37-3/4" 33" 32-1/2" 14" 4-5/8" 1/2" 1" 3" 3" 170

KHN155 15.5 155 95% 144 125 7-3/8" 9-3/4" 11-1/8" 10-5/8" 14-5/8" 37-3/4" 33" 32-1/2" 14" 4-5/8" 1/2" 1" 3" 3" 175

KHN199 19.9 199.9 95% 185 161 7-1/2" 10-1/2" 11-1/8" 11-5/8" 15-3/8" 38" 33" 32-3/4" 14" 4-5/8" 1/2" 1-1/4" 3" 3" 195

KHN285 28.5 285 95% 264 229 7-1/2" 10-1/2" 11-1/8" 11-5/8" 15-3/8" 38" 33" 32-3/4" 14" 4-5/8" 1/2" 1-1/4" 3" 3" 205

CON·X·US® Remote Connect

Modbus Communication

BACnet MSTP

Flow Switch

Low-Water Cutoff w/Manual Reset & Test

Alarm Bell

Concentric Vent Kit

Condensate Neutralization Kit

BMS Gateway to LON or BACnet IP

Multi-Temperature Loop Control

Sidewall Vent Termination

Wireless Outdoor Sensor

LP Gas Conversion Kit

> Firing Codes

M9 Standard Construction

M7 California Code

Money-Saving 95% Efficiency and Easier

Than Ever to Install

The KNIGHT® fire tube wall mount boiler allows for a more flexible installation

with top and bottom water connections**. Multiple water connection locations

add flexibility by allowing boiler connections as close as possible to the system

piping, reducing installation cost, complexity and the amount of piping needed

for a job.

The KNIGHT fire tube boiler operates with low pressure drop. The design incor-

porates a small volume of water in the heat exchanger allowing the boiler to be

installed in a primary/secondary or a full-flow piped system. There is no need to

change the piping to accommodate the boiler. The boiler adapts to the system.

This flexibility allows for a faster, more cost-effective boiler upgrade.

**Not included on WHN400

The CON·X·US® mobile communication platform allows SMART SYSTEM to go

where no other boiler has gone before.†

CON·X·US provides the ability to monitor and manage multiple KNIGHT heating boilers

without ever stepping into the mechanical rooms. CON·X·US will send alerts via text or

e-mail notifying of changes in system status, and anytime, from anywhere, a user can check

system status and re-program any boiler function. Once downloaded, the free CON·X·US

mobile application allows for remote access to all SMART SYSTEM functions using an

internet-capable device.

Updated SMART SYSTEM Control

Newest version of the SMART SYSTEM allows for easier setup and navigation

of parameters. New features include DHW recirculation pump control, LOCK-N-

LINK® USB programming, larger user interface, cascade leader redundancy and

modulation factor for fine tuning aggressiveness.

10:1 Turndown Ratio Optimizes Performance

Modulation turndown up to 10:1 means the firing rate automatically changes as the

heat load varies. A WHN111 KNIGHT boiler fires at its maximum 110,000 Btu/hr

rate when load is highest, then “turns down” to as low as 10% (11,000 Btu/hr) as

load decreases. A modulating boiler runs smoothly and efficiently, without frequent

on/off cycling. **Not included on WHN400

Safe, Reliable NEG/REG Technology

KNIGHT boilers can operate with low gas supply pressure. Negative Regulation

uses a pre-mix gas system instead of relying or utility pressure through the gas

valve. The result is steady operation in low gas pressure systems or when gas

demand is highest. Automatic fan control fine-tunes the air/fuel ratio, providing

superior combustion throughout the operating range.

Superior Direct-Venting Flexibility

KNIGHT boilers can be installed with direct-vent air intake and exhaust runs up to 100 equivalent feet, using PVC, CPVC,

polypropylene or AL29-4C stainless steel vent pipe.

KNIGHT® Boiler Dimensions & Specifications

Input Heating NET AHRI

Model Max. Min. Capacity Rating

Number MBH MBH AFUE MBH MBH

WHN056 55 8.3 95% 51 44

WHN086 85 8.5 95% 79 69

WHN111 110 11 95% 102 89

WHN156 155 15.5 95% 144 125

WHN200 199.9 19.9 95% 185 161

WHN286 285 28.5 95% 264 229

WHN400 399 80 94.4%* 377# 328

Knight Heating Boiler Dimensions and Specifications

A B C D E F G H I J K L M N O Gas Water Air Vent Ship

Conn. Conn. Inlet Size Wt. (lbs)

333-1/4” 18-1/2” 16” 11-3/4” 9” 3-1/2” 3-3/4” 1-1/2” 3” 6-1/8” 7-1/4” 3-3/4” 6-1/2” 4-1/2” 8-1/2” 1/2” 1” 2” 2” 139

33-1/4” 18-1/2” 16” 11-3/4” 9” 3-1/2” 3-3/4” 1-1/2” 3” 6-1/8” 7-1/4” 3-3/4” 8-1/2” 4-1/2” 8-1/2” 1/2” 1” 2” 2” 142

33-1/4” 18-1/2” 19” 14-1/2” 8-3/2” 5” 7-3/4” 1-1/8” 12-3/8” 4-1/4” 11-1/4” 3” 5-1/4” 5-1/8” 10” 1/2” 1” 3” 3” 159

33-1/4” 18-1/2” 19” 14-1/2” 8-1/2” 5” 7-3/4” 1-1/8” 12-3/8” 4-/14” 11-1/4” 3” 5-1/4” 5-1/8” 10” 1/2” 1” 3” 3” 166

33-1/4” 18-1/2” 19” 14-1/2” 11” 6-1/4” 7-3/4” 1-1/2” 12-3/8” 4-1/4” 9-1/2” 3” 5-1/4” 5-1/2” 10-3/4” 1/2” 1-1/4” 3” 3” 175

33-1/4” 18-1/2” 21-3/4” 16-1/2” 11-1/8” 6-1/4” 7-3/4” 1-1/2” 12-3/8” 16-3/8” 12-1/4” 3-1/8” 5-1/4” 4” 15-1/8” 1/2” 1-1/4” 3” 3” 184

35-1/2” 25” 21-3/4” 17-1/2” 12-1/2” 9-1/4” 9-1/2” 2-1/4” 13-1/4” 21-1/2” 9” 4-3/4” 4” 22-1/2” 3-3/4” 3/4” 1-1/2” 4” 4” 213

Smart System™ Features

> Smart System Digital Operating Control

Multi-Color Graphic LCD Display w/Navigation Dial,

Soft Keys and Loch-N-Link USB programming

> Three Boiler Setpoint Temperature Inputs

Plus Domestic Hot Water Prioritization

> Built-in Cascading Sequencer for up to 8 Boilers,

with Cascade Redundancy

Multiple Size Boiler Cascade

Lead Lag

Efficiency Optimization

Front End Loading Capability

> Outdoor Reset Control with Outdoor Air Sensor

Programmable for Three Reset Temperature Inputs

> Programmable System Efficiency Optimizers

SH Night Setback

DHW Night Setback

Anti-Cycling

Outdoor Air Reset Curve

Ramp Delay

Modulation Factor Control

Boost Temperature & Time

> Four Pump Control

System Pump with Parameter for Continuous Operation

Boiler Pump with Variable Speed Control

Domestic Hot Water Pump

Domestic Hot Water Recirculation

> Domestic Hot Water Prioritization

DHW tank piped with priority in the boiler loop

DHW tank piped as a zone in the system with the pumps

controlled by the SMART SYSTEM

DHW Modulation Limiting

Separately Adjustable Space Heat/DHW Switching Times

> Building Management System Integration

0-10 VDC Input to Control Modulation or Setpoint

0-10 VDC Modulation Rate Output

0-10 VDC Input to Enable/Disable Call for Heat

> Access to BMS Settings through Graphic LCD Display

> High-Voltage Terminal Strip

120 VAC / 60 Hertz / 1 Phase Power Supply

Three Sets of Pump Contacts

> Low-Voltage Terminal Strip

DHW Recirculation Pump Start/Stop

24 VAC Device Relay

Proving Switch Contacts

Flow Switch Contacts

Alarm on Any Failure Contacts

Runtime Contacts

DHW Thermostat Contacts

3 Space Heat Thermostat Contacts

System Sensor Contacts

DHW Tank Sensor Contacts

Outdoor Air Sensor Contacts

Cascade Contacts

0-10 VDC BMS External Control Contact

0-10 VDC Boiler Rate Output Contacts

0-10 VDC Variable Speed System Pump Signal Input

0-10 VDC Signal to Control Variable Speed Boiler

Pump

Modbus Contacts

> Time Clock

> Data Logging

Hours Running, Space Heating

Hours Running, Domestic Hot Water

Ignition Attempts

Last 10 Lockouts

> Maintenance Reminder

Custom Maintenance Reminder with

Contractor Contact Information

Installer Ability to De-activate Service Reminder

> Low-Water Flow Safety Control & Indication

> Password Security

> Customizable Freeze Protection Parameters

Standard Features

> 95% DOE AFUE Efficiency (56-286)

> Modulating Burner with up to 10:1 Turndown**

Direct Spark Ignition

Low NOx Operation

> ASME Stainless Steel Heat Exchanger

30 PSI ASME Relief Valve

> Top and bottom water connections (MNPT)**

> Vertical & Horizontal Direct Vent

PVC, CPVC, Polypropylene or SS Venting up to 100

feet

> SMART SYSTEM Control

> Condensate Trap

> Other Features

Automatic Reset High Limit

Adjustable High Limit w/Manual Reset

Boiler Circulating Pump

Zero Clearances to Combustible Materials

15-Year Limited Warranty (See Warranty for Details)

5-Year Limited Parts Warranty

Optional Equipment

CON·X·US Remote Connectivity

Modbus Communication

BACnet MSTP

Flow Switch

Low-Water Cutoff w/Manual Reset & Test

Alarm Bell

Concentric Vent Kit

Condensate Neutralization Kit

BMS Gateway to LON or BACnet IP

Multi-Temperature Loop Control

Sidewall Vent Termination

Wireless Outdoor Sensor

LP Gas Conversion Kit

> Firing Codes

M9 Standard Construction

M7 California Code

Information subject to change without notice. Change “N” to “L” for LP gas models.

The Net AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15.

Lochinvar should be consulted

before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc. The ratings have been determined

under the provisions governing forced draft burners.

**10:1 Turndown ratio and top and bottom water connections are not included on WHN400. WHN400 operates with a 5:1 turndown.

*Thermal Efﬁciency%

# Gross Output MBH

FLUE

COIN VENT

AIR VENT

INLET

OUTLET

LOW VOLTAGE

ELECTRICAL

CONNECTIONS

HIGH VOLTAGE

ELECTRICAL

CONNECTIONS

CONDENSATE

DRAIN

2000544065

FLUE

COIN VENT

AIR VENT

INLET

OUTLET

LOW VOLTAGE

ELECTRICAL

CONNECTIONS

HIGH VOLTAGE

ELECTRICAL

CONNECTIONS

CONDENSATE

DRAIN

2000544065

FLUE

COIN VENT

AIR VENT

INLET

OUTLET

LOW VOLTAGE

ELECTRICAL

CONNECTIONS

HIGH VOLTAGE

ELECTRICAL

CONNECTIONS

CONDENSATE

DRAIN

2000544065

A Game-Changer In Combi Water Heating

Lochinvar has long been the innovation leader in commercial boilers - and

now it’s bringing that engineering excellence to residential combi boilers.

Lochinvar’s legendary reliability and performance are now available for

apartments and homes, where the combi boiler’s next-generation re tube

design can provide hot water supply and space heating faster and more

efciently than ever before.

The NOBLE™ combi boiler provides a space-saving choice for builders and

speciers, lowering installation costs by reducing the mechanical equipment

needed to provide rapid, reliable hot water supply and efcient space heating.

It also gives plumbing contractors a money-saving alternative for single-family

housing with 1 or 2 bathrooms.

Advanced Electronic Control

The backlit, user-friendly LCD display provides diagnostic

information and system status in real words, not codes.

The Set-Up Wizard display makes it simple to set system

parameters in just minutes.

What makes the NOBLE The Best Combi Boiler?

DELIVERS MORE HOT WATER

It’s sized large enough to quickly meet domestic hot water (DHW) load. Provides

DHW from 2.6 (NKC110) to 4.8 gpm (NKC199) at a 77°F temperature rise.

FASTER DHW RESPONSE TIME

With many combi boilers, when you turn on a hot water faucet, you initially get

hot water and then a brief burst of cold water before the hot water resumes. Thanks

to its patent-ending control technology, this combi boiler eliminates this cold water

“sandwich”.

10:1 TURNDOWN RATIO

Operates as low as 10% of the maximum firing rate, preventing on/off short

cycling at the lowest DHW demands or small heating demands.

FIRE TUBE COMBI

™

NOBLE™ Combi Boiler Dimensions & Specifications

Input Heating NET AHRI

Model Max. Min. Capacity Rating

Number MBH MBH AFUE MBH MBH

NKC110N 110 11 95.0% 102 89

NKC150N 150 15 95.0% 139 121

NKC199N 199 20 95.0% 185 161

NOBLE Combi Boiler Dimensions and Specifications

FIRE TUBE COMBI

™

A B C D E F G

32-1/2” 17-1/4” 18” 14-3/4” 2-3/4” 6-1/2” 2-3/4”

32-1/2” 18-3/4” 18” 6-3/4” 2-3/4” 6-3/4” 11-3/4”

32-1/2” 18-3/4” 18” 5-1/2” 2-3/4” 6-3/4” 11-1/2”

Smart System™ Features

> Smart System Digital Operating Control

> SMART CONTROL Digital Operating Control

LCD Display with words not codes

> Outdoor Reset Control with Outdoor

Air Sensor

> Programmable System Efficiency Optimizers

DHW Response Time

DHW Pre Heat

Outdoor Air Reset Curve

> Two Pump Control

System Pump

Boiler Pump

> High-Voltage Junction Box

120 VAC / 60 Hertz / 1 Phase Power Supply

> Low Voltage Terminal Strip

Air Handler Interlock

Flow Switch Contacts

Low-Water Cutoff Connection

System Sensor Contacts

Outdoor Air Sensor Contacts

Cascade Contacts

> Time Clock for Data Logging

Last 10 Lockouts

> Low-Water Flow Safety Control & Indication

> Password Security

> Built-in Cascading Sequencer for

up to 8 units

Standard Features

> ENERGY STAR Most Efficient Recognition

> 95% DOE AFUE Efficiency

> Modulating Burner with 10:1 Turndown

Direct-Spark Ignition

Low-NOx Operation

> ASME Stainless Steel Heat Exchanger

50 psi Working Pressure w/ASME Relief

Valve

> Vertical & Horizontal Direct-Vent

PVC, CPVC, Polypropylene or SS Venting

up to 100 feet

> Condensate Trap

> Other Features

Automatic Reset High Limit

Adjustable High Limit w/Manual Reset

Built-in Circulating Pump

Wall-Mount Bracket

Zero Clearances to Combustible Materials

10-Year Warranty

(See Warranty for Details)

5-Year Parts Warranty

Optional Equipment

Low-Water Cutoff w/Manual Reset & Test

Concentric Vent Kit

Condensate Neutralization Kit

Sidewall Vent Termination

Floor Stand

Wireless Outdoor Sensor

Nat to LP Gas Conversion Kit

Isolation/Flush Valves

Firing Codes

> M9 Standard Construction/California Code

*Lochinvar should be consulted before selecting a boiler for

installations having unusual piping and pickup requirements, such

as intermittent system operation, extensive piping systems, etc.

*The ratings have been determined under the provisions governing

forced draft burners.

AIR INTAKE

FLUE

RELIEF VALVE

GAS

CONDENSATE

HIGH VOLTAGE

CONNECTIONS

WATER

INLET/OUTLET

M N T U

NKC110

2000534158

AIR INTAKE

FLUE

RELIEF VALVE

GAS

CONDENSATE

HIGH VOLTAGE

CONNECTIONS

WATER

INLET/OUTLET

M N T U

NKC110

2000534158

AIR INTAKE

FLUE

RELIEF VALVE

GAS

CONDENSATE

HIGH VOLTAGE

CONNECTIONS

WATER

INLET/OUTLET

M N T U

NKC110

2000534158

AIR INTAKE

FLUE

RELIEF VALVE

GAS

CONDENSATE

HIGH VOLTAGE

CONNECTIONS

WATER

INLET/OUTLET

M N T U

NKC110

2000534158

NKC110

TOP

NKC 150-199

TOP

BOTTOM

FRONT

Model H I J K L M N O P Q R Gas Water Air Vent Ship

Number Conn. Conn. Inlet Size Wt. (lbs)

NKC110N 2” 3-1/2” 8-3/4” 13-1/2” 2-3/4” 9” 10-1/2” 5” 14-1/2” 12-3/4” 5” 1/2” 1” 3” 3” 139

NKC150N 2-1/2” 6-1/4” 2-3/4” 13-1/2” 3” 9” 11-1/2” 5” 6-1/4” 13-3/4” 6” 1/2” 1” 3” 3” 142

NKC199N 2-1/4” 5-1/2” 2-3/4” 13-1/2” 2-3/4” 9 1/2” 10-1/2” 2-3/4” 5-1/2” 13” 5-1/4” 1/2” 1” 3” 3” 159

Notes: Indoor installation only. All information subject to change. Change "N" to "L" for LP gas models. *The Net AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15.

The Best All-Around Value in Today’s Home Heating Market

This modulating/condensing residential heating boiler offers fuel cost savings and

outstanding quality at lower cost than other high-efficiency designs. With gas inputs

from 40,000 to 120,000 Btu/hr, these wall-mount boilers can handle the heating load

for almost any home.

Stainless Steel Heat Exchanger with ASME ‘H’ Stamp

A commercial-grade ASME certified heat exchanger exemplifies the highest standards

for design, materials and manufacturing.

Fully Modulating Burner

Modulation adjusts the firing rate of the boiler to match the heat loss of the home,

reducing burner cycling and increasing overall system efficiency.

Outdoor Reset with Sensor

Monitors outdoor temperature to help CADET maintain a steady, consistent indoor

comfort level year-round. Allows boiler control to “reset” indoor water temperature as

needed when outdoor temperatures fluctuate.

Push-Button Digital Control

Constant display of actual output temperature,

and easy adjustment of setpoint.

Venting Versatility

CADET can be installed with a variety of venting configurations, including vertical or sidewall direct venting. Air intake and exhaust

vent runs up to 100 feet can be utilized to meet the most challenging installation requirements. 3” polypropylene, PVC, CPVC or

stainless steel pipe can be used. This venting flexibility is ideal for projects that will

require new vent material when a non-condensing boiler is being replaced.

Expanded Polypropylene (EPP) Jacket

Lightweight for easier handling. Deadens sound for quieter operation. Highly dent and

scratch-resistant.

94% AFUE Efficiency Reduces Heating Bills

For example, over 6 years, CADET could save over $1,400 in fuel costs.*

Depending on where it is installed, CADET may qualify for Energy Tax Credits.

*Fuel savings are compared to an 80%

AFUE boiler and based on a 70,000 Btu

heating load with 2,000 hours of operation

with a fuel cost of $1.13 per therm.

1 YR

$1,600

$1,200

$800

$400

2 YR 3 YR 4 YR 5 YR 6 YR

CADET® Boiler Dimensions & Specifications

Input Heating Net AHRI

Model Max. Min. Capacity RATING

Number MBH MBH AFUE MBH MBH

CDN040 40 9 94% 37 32

CDN070 70 14 94% 65 57

CDN100 100 20 94% 93 81

CDN120 120 24 94% 112 97

A B C D E Water Air Vent Ship

Conn. Inlet Size Wt. (lbs)

26” 4-1/4” 5-1/4” 4” 2-1/2” 3/4” 2” 2” 94

26” 4-1/2” 5-3/4” 3” 1-1/2” 1” 2” 2” 98

26” 6” 5-3/4” 3” 1-1/2” 1” 2” 2” 102

26” 7-1/4” 7” 3” 1-1/2” 1” 3” 3” 108

Top View Bottom View Side View

VENT

AIR

GAS

1/2" NPT

OUTLET

INLET

CONDENSATE

DRAIN

3-1/2"

9-1/4"

11"

19-1/2"

15-3/4"

7-3/4"

2-1/2"

5-1/4"

13-3/4"

Standard Features

94% AFUE Efficiency

Modulating Burner

Direct-Spark Ignition

Low-NOx Operation

Field Convertible from Natural to LP Gas

ASME Heat Exchanger

30 psi ASME Relief Valve

Freeze Protection

Vertical & Horizontal Direct-Vent

PVC, CPVC, Polypropylene or SS Venting

up to 100 feet

Push-Button Digital Control

Outdoor Temperature Reset

(sensor included)

Boiler Pump Control

DHW Pump Control

Expanded Polypropylene Jacket

10-Year Limited Warranty

5-Year Parts Warranty

Optional Equipment

Concentric Vent Kit

Sidewall Vent Termination

2” to 3” CPVC Vent Connection Kit

Flow Switch

Condensate Neutralization Kit

Floor Stand

Low Water Cut-off w/ Manual Reset

and Test

VENT

AIR

GAS

1/2" NPT

OUTLET

INLET

CONDENSATE

DRAIN

3-1/2"

9-1/4"

11"

19-1/2"

15-3/4"

7-3/4"

2-1/2"

5-1/4"

13-3/4"

VENT

AIR

GAS

1/2" NPT

OUTLET

INLET

CONDENSATE

DRAIN

3-1/2"

9-1/4"

11"

19-1/2"

15-3/4"

7-3/4"

2-1/2"

5-1/4"

13-3/4"

Flexibility is the SolutionTM

What could be better than a high-efficiency boiler that saves space,

saves money and helps resolve all your heating problems? How

about one that’s lightweight and simple to install too! That’s the

Solution™ boiler by Lochinvar®. From the highly efficient copper

finned tube heat exchanger, to our own specially designed two-stage

electronic control system, the Solution boiler offers these features

and many more in models up to 260,000 Btu/hr. Plus, all Solution

boilers are equipped with top water connections, a built-in draft

hood, and are approved for installation on combustible floors.

Copper Finned Tube Heat Transfer

The heart of the Solution boiler is its copper finned-tube heat

exchanger. With this unique gasketless design, we’ve combined the

best of both worlds: cast iron headers for long-lasting durability,

and a copper finned-tube heat exchanger for high efficiencies and

fast heat transfer. The gasketless design reduces the risk of leaks or

system failures that are common with conventional boilers. Plus,

the unit’s low-mass design means that water gets heated quickly. Not only is heat up time nearly instantaneous with the

Solution boiler, the energy consumption and operating costs are lower too, with a rating of 84% AFUE.

Two-Stage Control

The Solution boiler’s two-stage electronic temperature control with built-in outdoor reset provides

flexibility and saves fuel by closely matching heat output to system demand. On colder days the

boiler fires at full output, and in warmer conditions the Solution boiler reduces the setpoint heat

output to save energy and reduce boiler cycling.

During the majority of the heating season, less than full boiler output is required to satisfy the heat

load. For this reason Lochinvar has developed a two-stage firing system. Two-stage firing - standard equipment on all

Solution boilers, provides dramatic fuel savings by reducing the firing rate 50%. Two-stage firing is ideal for applications

utilizing indoor/outdoor reset and is advantageous in systems where the Solution boiler is used with an Squire indirect

water heater to produce domestic hot water.

Simple To Service

The Solution boiler is as flexible and convenient as it is efficient and

compact. For example, the heavy-duty stainless steel burners can easily

be adapted for use with either natural or liquefied petroleum (LP) gas.

What’s more, Solution boilers allow easy access to all major components

for servicing. We even designed the heat exchanger to slide out the

front of the boiler for faster maintenance, and we back it all up with our

exclusive 20-year Limited Warranty.

Built-In Piping Solutions

Other boilers often require system piping upgrades which are

cumbersome and expensive. The Solution boiler eliminates

this problem with its built-in, performance loop. The loop

maintains constant flow through the boiler when only a single

zone of the system is calling for heat. This helps maintain

peak system performance by keeping the copper heat transfer

surface clean and operating at top efficiency. And the top

water connections make replacements a snap by fitting into

existing piping arrangements without additional elbows and

connections.

You can depend on Lochinvar, and you can depend on the

Solution boiler to deliver the comfort, convenience, and

reliability you need. For more information, call your

Lochinvar dealer today.

PVC/CPVC Vent Kit (optional)

Vent up to 25’

out a sidewall or

rooftop with

PVC/CPVC

(CB 45-135).

Solution® Boiler Dimensions & Specifications

Solution Heating Boiler Dimensions & Spec i fi ca tions

Standard Features

ASME Copper Finned Tube Heat Exchanger

Gasketless Heat Exchanger Design

Built-In Performance Loop

Top Water Connections

24 Volt Control System

Self Diagnostic Ignition Control

Terminal Strip

Intermittent Electronic Ignition

Two Stage Solid State Temperature Control

Outdoor Reset with Outdoor Sensor

System Sensor

Two Stage Gas Valve w/ Built In Manual Shut-Off

Domestic Hot Water Priority

160 PSI Working Pressure

Pump Relay

Automatic Reset High Limit

ASME Pressure Relief Valve

Temperature & Pressure Gauge

Automatic Vent Damper

Built-In Draft Diverter

Stainless Steel Burners

Loch-Heat Ceramic Tile Combustion Chamber

CSA Design Certified for Installation on Combustible Floors

CSA Design Certified for Alcove Installation

20 Year Limited Warranty on the Heat Exchanger (see warranty

for details)

2-Year Parts Warranty

Optional Equipment

Adjustable High Limit w/ Manual Reset

Flow Switch

Low Water Cut-Off

Stack Frame

Pump Delay w/ Freeze Protection

MP2 Sequencer

PVC/CPVC Venting Kit (CB 45-135)

O2 Barrier

Firing Control Systems

M9 Two Stage, Intermittent Spark Ignition

M7 California Code (CB215-260 only)

Input Heating Net AHRI

Model Max Capacity Rating Gas Vent Ship

Number MBH AFUE MBH MBH A B C D Conn. Size Wt.(lbs)

CBN045 45 84.0% 37 32 29-1/2” 11-1/2” 21-1/2” 5-3/4” 1/2” 4” 145

CBN075 75 84.0% 62 54 29-1/2” 15-1/2” 21-1/2” 7-3/4” 1/2” 5” 155

CBN090 90 84.0% 75 65 29-1/2” 15-1/2” 21-1/2” 7-3/4” 1/2’ 5” 155

CBN135 135 84.0% 112 97 29-1/2” 19-1/2” 21-1/2” 9-3/4” 1/2” 6” 175

CBN180 180 84.0% 149 130 29-1/2” 23-1/2” 21-1/2” 11-3/4” 3/4” 7” 195

CBN215 215 84.0% 178 155 29-1/2” 26-1/2” 21-1/2” 13-1/4” 3/4” 7” 220

CBN260 260 84.0% 216 188 29-1/2” 29-1/2” 21-1/2” 14-3/4” 3/4” 8” 225

Notes: Change ‘N’ to ‘L’ to denote L.P. gas models Electrical Requirements: 120 VAC / 2 AMP Water connections are 1-1/2” NPT

Net ratings based on piping and pick-up allowance of 1.15 Approved for indoor installation only Performance data based on manufacturer test results.

What is a Buffer Tank/Hydraulic Separator?

A Buffer Tank/Hydraulic Separator is designed to maximize the runtime and limit the

on/off cycling of a boiler while separating the boiler flow from the system flow. In

applications where the minimum system load is less than the minimum output of the

boiler, there is a high propensity for the boiler to excessively cycle on and off due to the

fact that the boiler is delivering more BTU’s than the system is requiring. In this case

the Buffer Tank is designed to act as a battery for BTU’s. The system demand is met

by using BTU’s that are already stored in the tank and thus delaying the boiler from

initiating a heating cycle until a minimum run time can be accomplished.

The Hydraulic Separator aspect of the tank is designed to de-couple the hydronic heating

system flow from the boiler flow by acting as a “separator” so that the two independent

flows do not affect one another. When the system flow is less than the minimum required

boiler flow there will likely be erratic system delivery temperatures and excessive boiler

cycling. These adverse affects can cause premature component failure, and in most cases,

boiler efficiency will be adversely affected.

When Should a Buffer Tank/Hydraulic Separator be Applied?

A Buffer Tank/Hydraulic Separator can be applied to keep the boiler from short cycling in

situations where the smallest building demand is less than the minimum rated output of the

boiler and/or in situations where system flow is less than the flow required by the boiler.

Buffer Tank/Hydraulic SeparaTor

Buffer Tank / Hydraulic Separator Dimensions and Specifications

How is a Buffer Tank/Hydraulic Separator Sized?

• Desired Runtime- The Minimum period of time that the boiler should run before cycling off.

• Lochinvar recommends a minimum boiler runtime of no less than 10 minutes.

• Minimum Boiler Output- The amount of BTU’s that will be delivered at the minimum firing rate of the smallest boiler in the plant.

• Minimum System Load- The absolute smallest heat demand of the building.

• System Delta T- The difference between the system supply temperature and system return temperature.

• 8.33- The weight of one gallon of water.

• 60- The number of minutes in 1 hour

A Buffer Tank/Hydraulic Separator is sized to provide a minimum runtime for the boiler plant. Use the equation below to find

the properly sized tank for your specific application. Tank connection diameters should be sized to meet the maximum flow

requirements of the application.

Model Gallon Standard Ship.

Number Capacity A B C D E Conn. Size Wt. (lbs)

BVU120 120 59-1/2” 32” 32” 43-3/4” 13-3/4” 3” NPT 500

BVU200 200 89-1/2” 32” 32” 73-3/4” 13-3/4” 3” NPT 900

BVU300 300 80” 40” 50” 57-1/2” 26-1/2” 4” Flange 1,290

BVU400 400 80” 46” 56” 55” 29” 6” Flange 1,626

BVU500 500 91” 46” 56” 66” 29” 6” Flange 1,765

BVU750 750 104” 52” 62” 77” 31” 6” Flange 2,330

BVU1000 1000 128” 52” 62” 101” 31” 6” Flange 3,010

Notes: Custom Sizes and Configurations are Available, consult Factory for details.

Additional Recirculation & Supply/Return Connections Sizes Available, consult Factory for details.

Standard Features

• ASME Sec. VIII U Stamp

• 125psi (Max. Allowable Working Pressure)

• Automatic Air Vent

• 5 Year Limited Warranty

• Pre-painted Jacket

• 2” HCFC Free Foam Insulation

Optional Equipment

• Temperature and Pressure Gauge

• Handhole

• Manway (300 gallons and larger)

• Custom Tapping Locations

• Custom Tapping Diameters

• Extra Tappings

• Custom Tank Sizes

• Flange or NPT Connections

• Relief Valve (Shipped Loose)

Desired Run Time x (Minimum Boiler Output – Minimum System Load)

System rT x 8.33 x 60

Buffer Tank

Capacity =

Buffer Tank

Stainless Steel Buffer Tanks

Hydronic Buffer Tank Dimensions and Specifications

Standard Features

• Glass-lined Steel Tank

• High Density Foam Insulation

• Drain Valve

• Air Vent Connection

• Bulbwell

• 3-Year Tank Warranty

Hydronic Stainless Steel Buffer Tank Dimensions and Specifications

Model Gallon Supply/Return Ship

Number Capacity A B D E F G Conn. Wt. (lbs)

SBT030 30 39-1/2” 20 28-3/4” 20-1/4” 11-3/4” 7-3/4” 1-1/2” NPT 70

SBT050 50 47 24 33-3/4” 24-1/4” 14-3/4” 8-3/4” 1-1/2” NPT 120

SBT080 80 69-1/2” 24 55-3/4” 35-1/4” 14-3/4” 8-3/4” 2” NPT 153

SBT119 119 68-1/4” 28 54-3/4” 34-1/4” 15” 9” 2” NPT 198

Standard Features

• R-13.4 HCFC free foam insulation for minimal heat loss

• Textured, impact resistant polymer jacket

• Light-weight 316L stainless steel tank construction

• Bulbwell

• Drain and air vent connections

• 5 year tank warranty

3/4

3/4” DRAIN

1” NPT VENT CONNECTION (SBT)

3/4” NPT VENT CONNECTION (RBT)

*RBT Models only -

NPT Female

Connection (Typical)

Model Gallon Supply/Return Ship

Number Capacity A B D E F G Conn. Wt.(lbs)

RBT030 30 34-1/2” 20-1/2” 24-1/4” 17-1/8” 9-1/2” 4” 1-1/2” NPT 70

RBT050 50 53-7/8” 20-1/2” 41-5/8” 25-3/4” 9-1/2” 3-3/4” 1-1/2” NPT 120

RBT080 80 58-3/8” 24” 46-1/4” 29” 11-3/4” 3-3/4” 2” NPT 153

RBT119 119 61-5/8” 29-1/2” 48-1/2” 30-1/8” 11-3/4” 3-3/4” 2” NPT 198

Domestic Coil

Model Water Conn. Ship.

Number A B D G H I Conn. Size Wt. (lbs)

SIT030 39-1/2” 20” 32-1/4” 21-3/4” 8-1/4” 3” 1” 1” 79

SIT040(DW)* 55-1/2” 20” 48-1/2” 25-1/4” 8-1/4” 3” 1” 1” 105

SIT050(DW) 47” 24” 39-3/4” 24-1/2” 9-1/4” 3-3/4” 1” 1” 131

SIT065(DW) 60” 24” 52-1/4” 28” 9-1/4” 3-1/4” 1-1/2” 1” 147

SIT080(DW) 69-1/2” 24” 61-3/4” 28” 9-1/4” 3-1/4” 1-1/2” 1” 177

SIT119(DW) 68-1/4” 28” 60-1/4” 31-3/4” 9-1/4” 3-1/4” 1-1/2” 1” 213

Heat Source Standby Continuous 1st Hour Min. Flow Friction

Model Capacity Water Volume Loss Delivery Delivery Coil Load Rate Loss

Number (Gallons) (Gallons) (°F/Hr) (GPH) (Gallons) (Btu/Hr) (GPM) (Ft. Hd.)

SIT030 27 1.1 1.5 160 183 99,000 14.0 3.9

SIT040 40 1.6 0.9 181 208 115,000 14.0 4.5

SIT050 52 1.7 0.9 209 255 133,000 14.0 5.3

SIT065 67 1.9 0.7 263 327 154,000 14.0 5.7

SIT080 82 2.1 0.6 266 347 160,000 14.0 5.7

SIT119 113 3.2 0.5 349 459 199,999 14.0 6.5

Performance data is based on I=B=R test results. All ratings are based on 180°F boiler water temperature. Ratings for Double Wall models are decreased.

Please reference sales literature (SDW-02). Includes tank sensor for use with KNIGHT Heating Boiler.

Optional thermostat available for use with other boiler models.

Stainless Steel Indirect SIT Models Dimensions and Specifications

A New Class of Water Heater

SIT Models

SIT***(DW) Double Wall Models

STainleSS STeel indirecT

SIT Models Dimensions and Specifications

• 17 Total Squire Models

6 Standard models from 30 to 119 Gallons

3 Dual Coil Models for Dual Source or

High Capacity 65 to 119 Gallons

3 Electric Back-up Models 65 to 119 Gallons

5 Double Wall Models 40 to 119 Gallons

• 316L Passivated Stainless Steel Tank

• 316L High Capacity Stainless Steel Coil

• Fully Welded Construction

• HCFC Free Foam Insulation

• Limited Lifetime Warranty

*SIT040(DW) “A” = 38-1/4” and “B” = 24”, All other model dimensions are same for single and double wall models

Stainless Steel Indirect SDT & SET Models Dimensions and Specifications

FROM

PANEL

COLD WATER

INLET

SOLAR

SENSOR

WELL

Domestic Coil

Model Water Connection Ship

Number A B D E F G H I Conn. Size Wt. (lbs)

SDT065 60” 24” 52-1/4” 47-1/4” 33-3/4” 28” 9-1/4” 3-1/4” 1-1/2” 1” 158

SDT080 69-1/4” 24” 61-3/4” 53-3/4” 40-1/4” 28” 9-1/4” 3-1/4” 1-1/2” 1” 188

SDT119 68” 28” 60-1/4” 54-1/2” 37-1/2” 31-3/4” 9-1/4” 3-1/4” 1-1/2” 1” 224

Solar Heat Boiler Heat Standby Continuous 1st Hour Min. Flow Friction

Model Capacity Source Water Source Water Loss Delivery Delivery Coil Load Rate Loss

Number (Gallons) Volume (Gals.) Volume (Gals.) (°F/Hr) (GPH) (Gallons) (Btu/Hr) (GPM) (Ft. Hd.)

SDT065 65.5 2.1 1.7 0.7 174.6 204.7 128,000 14.0 3.4

SDT080 78.4 2.1 1.7 0.6 174.6 207.1 128,000 14.0 3.4

SDT119 109.8 3.2 2.6 0.5 250.2 300.5 181,000 14.0 4.9

Performance data based on incoming cold water at 50°F and a Delta T of 77°F. Delivery ratings for boiler coil only. Includes tank sensor for use w/ KNIGHT Heating Boiler.

Domestic Coil

Model Water Conn. Ship

Number A B D F H I Conn. Size Wt. (lbs)

SET065 60” 24” 52-1/4” 28” 9-1/4” 3-1/4” 1-1/2” 1” 149

SET080 69-1/2” 24” 61-3/4” 28” 9-1/4” 3-1/4” 1-1/2” 1” 179

SET119 68-1/4” 28” 60-1/4” 31-3/4” 9-1/4” 3-1/4” 1-1/2” 1” 215

Solar Electric Electric

Heat Source Standby Continuous 1st Hour

Model Capacity Water Volume Loss Delivery Delivery

Number (Gallons) (Gallons) (°F/Hr) (GPH) (Gallons)

SET065 67.0 1.9 0.7 23.9 54.0

SET080 80.9 2.1 0.6 23.9 56.4

SET119 112.4 3.2 0.5 23.9 74.2

All SET models: 4500w 240v 1 phase.

SDT Models Dimensions and Specifications

SET Models Dimensions and Specifications

FROM

PANEL

COLD WATER

INLET

SOLAR

SENSOR

WELL

SDT Models SET Models

STainleSS STeel indirecT

System

Another Space-Saving Idea

Lochinvar’s technology not only makes our water heaters

and boilers more efficient, they also have a smaller

footprint. So they save space, as well as operating costs.

And now there’s a way to get greater flexibility and

reliability, save even more space, and get a system

that’s perfectly matched to a facility–thanks to the

Stack Frame from Lochinvar.

Match Load And Capacity

With this versatile frame, you can stack almost any

combination of our ARMORTM, KNIGHT®, Copper-Fin®,

Copper-Fin II®, and SolutionTM water heaters and boilers

so you can achieve the perfect Btu/hr capacity for each

application.

For example, a facility needs a Copper-Fin II boiler with

a total capacity of 1.6 million Btu/hr. Instead of installing

an oversized CHN1802 unit or a smaller CHN1442

model, now you can combine two units – CHN0992 and

CHN0652 models– to exactly match the facility’s needs.

Plus, the total footprint of this combined system is just

over 10 inches wider that the CHN0652 unit alone,

making it smaller than either the CHN1802 or CHN1442

model. All thanks to the Lochinvar Stack Frame.

Our compact KNIGHT® requires even less space

when stacked on a Stack Frame.

No Assembly Required

Lochinvar’s Stack Frame is fully factory assembled and

shipped in one piece. The frame is welded using square steel

tubing by certified welders. Each frame is designed and tested

for each specific application.

Added System Benefits

This modular design provides two other important benefits.

First, it allows for system turndown for greater efficiency when

demand is lower. And second, it ensures against system failure

by utilizing two independent but complimentary units.

For residential and light commercial needs or commercial

applications of up to 4 million Btu/hr the Stack Frame gives

greater flexibility without a significant increase in stack size or

overall system dimensions.

Once you’ve determined a facility’s requirements and the exact

models needed, utilize the charts provided to calculate total

system dimensions.

NOTE: Stack Frames are for indoor applications only.

System

Copper-Fin® Boilers

(Models 0497-0747)

KNIGHT® Heating Boilers (Models 081-801)

SolutionTM Boilers (Models 045-500)

MODEL # PART # A* B** C Wt. (lbs)

CB 045 MSF 3034 65-1/2” 36” 39” 73

CB 075 MSF 3034 65-1/2” 36” 39” 73

CB 090 MSF 3034 65-1/2” 36” 39” 73

CB 135 MSF 3034 65-1/2” 36” 39” 73

CB 180 MSF 3034 65-1/2” 36” 39” 73

CB 215 MSF 3035 65-1/2” 48” 39” 84

CB 260 MSF 3035 65-1/2” 48” 39” 84

CB 315 MSF 3035 65-1/2” 48” 39” 84

CB 360 MSF 3035 65-1/2” 48” 39” 84

CB 399 MSF 3036 65-1/2” 65” 39” 147

CB 500 MSF 3036 70-1/2” 65” 39” 147

Note: Heater height is 29-1/2” (45 - 399) and 34-1/2”

(500).

MODEL # PART # A* B** C Wt. (lbs)

CB 0497 MSF3002 81-1/2” 51” 24-1/2” 70

CB 0647 MSF3003 84-1/2” 70” 26” 128

CB 0747 MSF3003 84-1/2” 70” 26” 128

Note: Heater Height is 33-1/4” (0497-0747)

MODEL # PART # A* B** C Wt.

(lbs)

CH 0402 MSF3022 67-1/2” 59” 24-1/2” 83

CH 0502 MSF3022 67-1/2” 59” 24-1/2” 83

CH 0652 MSF3023 67-1/2” 80” 24-1/2” 132

CH 0752 MSF3023 67-1/2” 80” 24-1/2” 132

CH 0992 MSF3007 80” 75” 36” 170

CH 1262 MSF3008 80” 95” 36” 214

CH 1442 MSF3008 80” 95” 36” 214

CH 1802 MSF3009 80” 119” 36” 251

CH 2072 MSF3009 80” 119” 36” 251

Note: Heater height is 31-1/2” (0402-0752) & 36” (0992-2072)

* To vent connection

** Allow space for plumbing connections

Copper-Fin II® Boilers

(Models 0402-2072)

MODEL # PART # A* B** C Wt. (lbs)

KB 081-211 MSF3043 90-1/2” 26” 26” 60

KB 286-501 MSF3044 109” 26” 34” 72

KB 601-801 MSF3052 109” 26” 43” 94

Note: Heater height is 33-1/4” KB 81-121

Heater height is 42-1/2” KB 286-501

Knight® Wall Mount Boilers

(Models 55-399)

CadetTM Boilers (Models 40-120)

PART # A* B** C Wt. (lbs)

MSF30018 60-1/4” 17-1/2” 36” 50

commercial elecTric compacT BoilerS

Commercial Electric Compact Boiler Dimensions & Specifications

Components

Temperature Limit, Auto Reset

2. Temperature Limit, Manual Reset

3. Manual Limit Switches

4. Pilot Lights, Amber (Steps “On”)

5. PB Switches

(Low Water Cutoff “Test”/”Reset”)

6. Toggle Switch (Control Power)

7. Pilot Light, Amber

(Control Power “On”)

8. Pilot Light, Red (Low Water)

9. Temperature Setpoint

/ Control / Readout

10. Safety Relief Valve

11. Temperature & Pressure Gauges

12. Drain Valve

14”

Inlet Pipe for

Flange or

Flow Switch

Option.

Standard Features

• ASME National Board Registered Pressure Vessel

• Heavy Duty Steel Boiler Vessel Housing

• 4” Fiberglass Insulation

• 3” NPT Inlet and Outlet Connection

• ASME Pressure Relief Valve

• Pressure Gauge with Cock

• Drain Valve

• Adjustable High Limit with Automatic Reset

• Adjustable High Limit with Manual Reset

(units with more than 2 stages)

• Low Water Cut-Off

• Incoloy-Sheathed Elements

• Internal Branch Circuit Fusing

• Magnetic Contactors

• Main Supply Circuit Lugs

• 120 Volt Fused Control Transformer

• On/Off Switch with Pilot Light

• Manual Limit Toggle Switches (1 per step)

• Integeral Electric Control Panel with key locked door

• Electronic Multi-Stage Control

• Status Pilot Light for each Step

• Electric Digital Temperature Readout

• (except 1 & 2 step models)

• Listed by the Underwriters Laboratories

• 3 Year Limited Tank Warranty

• 1 Year Parts Warranty (See warranty for details)

Optional Equipment

• Alarm Buzzes with Silencing Switch

• Automatic Breaker

• Flow Switch

• ABB Fused Disconnect

• Non-Fused Disconnect

• Ground Fault Detection system

• Low Temperature Switch

• Kilowatt/Hour Meter

• Flanged Water Connections

• Amp Meter

• Volt Meter

• High Pressure limit switch

• Control Panel door solenoid interlock

• Low water cutoff-float type

• BMS alarm interface

• BMS remote set point control

• BMS remote step control

(remote enable)

• BMS 120V interface to limit boiler

power demand

• BMS 24V interface to limit boiler

power demand

• Time clock

• 304 stainless steel vessel &

non ferrous trim

• 3” connections

• 4” connections

¤4”/300 GPM is Optional

Model Max. Flow Connection Dia Vol Dimensions Ship

Number (gpm) Sizes (NPT) (In) (Gal) A B C Wt.(lbs)

BW*1-**C 230 3” 12” 22 52” 24” 30” 600

BW*2-**C 230 3” 16” 36 52” 28” 34” 800

BW*3-**C 230¤ 3” 20” 56 52” 32” 38” 1,100

** Power Panel will be taller or wider for ABB Disconnect option. Consult factory.

commercial elecTric HoT WaTer BoilerS

Standard Features

• ASME National Board Registered

Pressure Vessel

• Heavy Duty Steel Boiler Vessel Housing

• Full Sized Structural Steel Base

• 3” Fiberglass Insulation

• Flanged Inlet and Outlet Connection (above

3”)

• ASME Pressure Relief Valve

• Pressure Gauge with Cock

•

Full Port

Drain Valve

• Low Water Cut-Off with Manual Reset

•

Manual Limit Toggle Switches (one per step)

• Adjustable High Limit with Automatic Reset

• Adjustable High Limit with Manual Reset

• Incoloy Sheathed Elements

• Internal Branch Circuit Fusing

• Magnetic Contactors

• Main Supply Circuit Lugs

• 120 Volt Fused Control Transformer

• On/Off Switch with Pilot Light

• Integral Electric Control Panel with Key Locked Door(s)

• Electronic Multi-Stage Control

• Status Pilot Light for each Step

• Digital Electronic Readout

• Listed by the Underwriters Laboratories

•

3 Year Limited Tank Warranty / 1 Year Parts Warranty

(See warranty for details)

•

Alarm Buzzer w/silencing switch

•

Automatic Breaker

•

Flow Switch

•

Non Fused Disconnect

•

Fused Disconnect

•

Ground Fault Detection System

•

Low Temperature Switch

•

Main Power Disconnect

•

Manual Limit Toggle Switches (1 per step)

•

Kilowatt/Hour Meter

Commercial Electric Hot Water Boiler Dimensions & Specifications

Note 1: Element removal clearance (R”)

is equal to 2 times the element kW.

Note 2: Optional equipment may change

overall boiler dimensions. Please consult

factory for dimensional information.

•

Amp Meter

•

Volt Meter

•

High Pressure limit switch

•

Control Panel door solenoid interlock

•

Low water cutoff-float type

•

BMS alarm interface

•

BMS remote set point control

•

BMS remote step control (remote enable)

•

BMS 120V interface to limit boiler power demand

•

BMS 24V interface to limit boiler power demand

Optional Equipment

Max MBH Max Connection Max. Tank Data Dimensions Weight

Model Input Per # of Sizes (NPT) Flow Dims Vol (Inches) (lbs)

Number kW Hour Elements In/Out Drain GPM (In) (Gal) A B C D Ship Oper.

BW*24 600 2047 30 4” FLG 1-1/4” 470 24x44 70 34” 40” 52” 51” 1,300 1,860

BW*24 1076 3673 46 6” FLG 1-1/2” 680 24x44 70 34” 40” 56” 63” 1,500 2,060

BW*30 1825 6228 78 6” FLG 1-1/2” 900 30x48 125 40” 50” 60” 75” 1,900 2,900

BW*36 2246 7665 100 8” FLG 2” 1,170 36x48 165 46” 56” 62” 87” 2,400 3,720

BW*42 3089 10539 150 10” FLG 2” 1,840 42x50 260 54” 76” 64” 77” 3,600 5,760

•

Time clock

•

304 stainless steel vessel & non ferrous trim

•

3” connections

•

4” connections

•

BACnet Communications

•

Modbus Communications

lTV loW TemperaTure ValVeS

LTV Valve Dimensions & Spec i fi ca tions

Ideal for Use with Copper-Fin,

Copper-Fin II and Power-Fin Boilers

When designing a boiler system with return water temperatures

below 130°F, it is necessary to protect the boiler from flue gas condensation. All

non-condensing boilers will develop operational problems if they are continually

exposed to system return water temperatures below 130°F. Typical systems that

require this protection are water source heat pump systems, in-floor radiant heat

systems, greenhouse heating, soil heating, process operations and manufacturing operations.

Additionally, heating systems that utilize nighttime setback, night/weekend shutdown or outdoor

reset control strategies should incorporate low water temperature protection.

To prevent low return water temperatures to the boiler and combat operational problems, the system should be piped in a primary

secondary piping arrangement with a low temperature bypass. Manual bypass systems however are not the ideal solution due to varying

flow rates and firing rate of the boiler. A better alternative is Lochinvar’s Low Temperature Valve, which is a self-contained automatic

thermostatic 3-way valve that ensures temperatures entering the boiler remain above 140°F.

All boilers must use optional remote sensor.

Minimum high limit setting is 205°F.

Pump supplied by installer.

2-1/2” LTV Valve

Part Number - 100172000

Note: Mounting flange Included with valves.

TYPICAL PIPING

2” LTV Valve

Part Number - 100172001

2” LTV Valve

2-1/2” LTV Valve

4” LTV Valve 1-1/2” LTV Valve

Up to 55 GPM flow rate

Up to 55 GPM flow rate Over 55 GPM flow rate

1-1/2” LTV Valve

Part Number - 100171919

15.88

7.94

13.06

8.56

TOP

FRONT

11”

15.88

7.94

13.06

8.56

TOP

FRONT

11”

15.88

7.94

13.06

8.56

TOP

FRONT

11”

4” LTV Valve

Part Number - 100275912

Over 225 GPM flow rate

ASB-10M-7/17–Printed in U.S.A.

Lochinvar, LLC

300 Maddox Simpson Parkway

Lebanon, Tennessee 37090

P: 615.889.8900 | F: 615.547.1000

Lochinvar.com

SMART TOUCH 1.5 Boiler Product Line Brochure

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