Slant Fin B 120A Users Manual

B-200A to the manual 075a0291-0df8-4210-a8f1-cc4b5e95ca9f

2015-02-05

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Residential • Gas fired • Hot Water Boilers

User’s Information Manual

Bobcat Direct-Vent Sealed Combustion Condensing Boiler

Model B-120A and B-200A

FOR YOUR SAFETY:

•Before operating this boiler, READ this manual.

•DO NOT attempt to install, service or repair this boiler yourself. There are no user serviceable

parts. Contact a qualified service agency if your boiler needs repair or maintenance. Ask your gas supplier for a

list of qualified service agencies.

•Aqualified service agency should inspect the venting system of this boiler on an annual basis.

__ DO NOT store or use gasoline or other

flammable vapors and liquids in the

vicinity of this or any other appliance.

__ WHAT TO DO IF YOU SMELL GAS

•DO NOTtryto light anyappliance.

•DO NOT touch any electrical switch

•DO NOT use any phone in your

building.

•Immediately call your gas supplier

from a neighbor’s phone. Follow the

gas supplier’sinstructions.

•If you cannot reach your gas supplier,

call the fire department.

__ Installation and service must be performed by

aqualified installer, service agency or the gas

supplier.

WARNING: If the information in this manual is not

followed exactly, a fire or explosion may result

causing property damage, personal injury or loss

of life.

Your gas boiler must be installed and serviced by a qualified service agency or gas

supplier.The lackof proper service can result in a dangerous condition.

This manual must be left with owner, hung on or

adjacent to the boiler.Owner should retain manual

for future reference.

Printed in U.S.A. 808 Part No. 86-5757000 Publication No. BA-UIM

Bobcat Model B-120A and B-200A 2

WELCOME TO OUR VALUED CUSTOMER

You are now the owner of a Slant/Fin Bobcat series gas-fired

boiler,another quality heating product designed and manu-

factured by an industry leader, to provide your family with

many years of reliable comfort and trouble-free performance.

The care and maintenance of your new boiler is important to

prevent a hazardous condition which might result form lack

of proper servicing. Therefore, you should perform regular

“owner” inspections as described in this manual (and report

anyconcerns to a qualified service technician) as well as

have your boiler serviced by a qualified service technician at

least once a year, preferably before the beginning of each

heating season.

LIGHTING INSTRUCTIONS

Locate,read and then follow the procedures on the lighting

instructions label attached to the boiler. For reference, we

have reproduced those instructions in this manual.

DO NOT use this boiler if any part has been

underwater. Immediately call a qualified service

technician to inspect the boiler and to replace

anypartof the control system and anygas

control which has been underwater.

WARNING

Should overheating occur or the gas supply

fail to shut off, DO NOT turn off or disconnect

the electric supply to the circulator pump.

Instead, shut off the gas supplyat a location

EXTERNAL to the appliance.

WARNING

SLANT/FIN DOES NOT PERMIT THE USE OF

VENT DAMPERS ON BOBCAT B-120 or B-200

SERIES BOILERS. OTHER DAMPERS OR

DEVICES WITH SIMILAR PURPOSE ARE NOT

PERMITTED.

Keep the boiler area clean and free of all materials that can burn.

NEVER close or reduce openings that supplyair for the boiler fire and for ventilation.

Figure 1. Location and identification of parts. (model 120A shown)

Bobcat Model B-120A and B-200A

INSPECTION

Your boiler and heating system will last an indefinitely long

time at full efficiency, if it is inspected regularly and is kept

in good repair and adjustment. You, the user, should make

regular inspections, and report any problems to your

service agency. At regular intervals, you should have that

agency inspect the system and make repair adjustments as

necessary. What you and the service agency should do is

listed below. Contact your gas supplier for a list of qualified

service and repair agencies.

USER INSPECTION

The user should make the following inspections at least

once each month during the heating season and once just

before cold weather starts. Bobcat B-120 and B-200 boil-

ers maybe installed and vented either as direct-vent boil-

er, which all air for combustion is obtained directly from

outside through the air intake piping or as non-direct-

vent boiler, which all air for combustion is taken from

inside the boiler room. Typical direct-vent installations are

shown on Figures 2 and 3. Non-direct-vent installation is

shown on Figures 4, 5 and 6.

1. VENTING AND AIR INTAKE SYSTEM REGULAR

INSPECTION

Inspect the system regularly for condensation, corrosion,

sagging and/or physical damage. A qualified professional

should service the boiler annually and include such an

inspection at that time. The homeowner should look over the

system monthly for damage, water stains, any signs of rust,

other corrosions or separation of the vent and air intake

piping (if direct-vent).

Should an inspection turn up signs of condensation,

corrosion, sagging or damage, the boiler should be shut

down immediately and the condition should be corrected by

aqualified professional.

If the boiler is vented horizontally through the wall, the

outside termination, louvers and screen should be checked

for any debris blocking the opening and cleaned as

required.

AIR INT

AKE

LOUVERS

3” DIA.

AIR INTAKE

PIPE

3” DIA.

VENT PIPE

OUTSIDE

WALL

VENT

TERMINATION

OUTSIDE

TERMINATION

PANEL

Figure 2. Direct vent, sidewall venting illustration.

VENT

TERMINATION

AIR INTAKE

3” DIA.

VENT PIPE 3” DIA.

AIR INTAKE

PIPE

Figure 3. Direct vent, venting and air intake

through a roof.

Bobcat Model B-120A and B-200A 4

3 IN. DIA.

VENT PIPE

AIR INTAKE

(DO NOT BLOCK)

VENT

TERMINATION

OUTSIDE WALL

Figure 4. Non-direct vent, sidewall venting.

Bobcat Model B-120A and B-200A

Figure 5. Non-direct vent, venting through the roof.

VENT

TERMINATION

3IN. DIA.

VENT PIPE

AIR INTAKE

(DO NOT BLOCK)

Figure 6. Non-direct vent, utilizing an existing chimney as a chase.

CHIMNEY

TOP PLATE

3 INCH DIA.

VENT PIPE

3 INCH DIA.

VENT PIPE

AIR INTAKE

(DO NOT

BLOCK)

UNUSED

CHIMNEY

VENT

TERMINATION

Bobcat Model B-120A and B-200A 6

2. CONDENSATE REMOVAL SYSTEM

The Bobcat B-120 and B-200 boilers are equipped with

abuilt-in condensation drain and trap. The trap must be

filled with water. DO NOT operate the boiler without fill-

ing the trap with water to prevent flue gas discharge into

space. Periodic inspection should be made of this

assembly for deterioration of the tubing and to insure

that the trap is not plugged. If it is plugged or appears to

have excessive sediment in it, it should be removed

from the drain assembly, straightened out to clear the

obstruction, reformed, filled with water and reinstalled

as before. (See Figure 7).

Leave the top of the condensate drain tee open, to act

as a vacuum breaker. Do not allow any part of the

condensate removal system to be exposed to freezing

temperatures, or any other conditions that could cause

blockage.

If a neutralizing system is installed, the filter medium will

require periodic changing, to ensure it’s effectiveness.

Refer to the neutralizing unit’s manufacturers instruc-

tions,if available, or change the medium on an annual

basis.

3. PIPING INSPECTION

Look at all water piping. There should be no leaks or

signs of leaks at any pipe joints or around the boiler.

4. SYSTEM WATER PRESSURE INSPECTION

The boiler water pressure is indicated on the pressure

gage (See Figure 1 for location). The boiler water outlet

temperature is normally indicated on the temperature

display (See Figure 1 for location and Figure 9 for digits

illustration). For most installations, it should indicate

about 12 to 15 psi pressure when temperature is about

70 to 100F and from 15 psi to 25 psi when temperature

is up to 195˚F. FOR YOUR SYSTEM, there is one

correct pressure for each temperature. ASK YOUR

INSTALLER OR SERVICEPERSON TO EXPLAIN AND

SHOW YOU. Learn what normal pressure to look for. If

pressure increases from normal, the relief valve will

open to relievethe pressure. Call your service organiza-

tion if pressures are higher or lower than normal, and if

the relief valve spills water. Repair or adjustment is

needed.

5. UNUSUAL NOISE

Stand near the boiler and look and listen. As the burner

start and shut off, there should be no unusual noise.

6. BOILER ROOM AIR SUPPLY

Ample boiler room fresh air is required for combustion

(non-direct vent installation) and ventilation (direct-vent

installation).

Check air vents for continues positive supply of air as

required. Air needs are greatest in cold weather if boiler

installation is non-direct vent method. Air vents must be

open and free of obstruction.

Warning: The flow of combustion and ventilating air to the

boiler should not be obstructed.

Warning: If you find any problem during your inspection, call

for service immediately.

Figure 7. Condensate disposal system

CONDENSATE TRAP,

FILLED WITH

WATER

DRAIN VACUUM

BREAKER, LEAVE

OPEN

NEUTRALIZING

UNIT

(IF REQUIRED)

PLASTIC

TUBING

CONDENSATE

PUMP

(IF REQUIRED)

DRAIN

INSIDE

BUILDING

Bobcat Model B-120A and B-200A

The combustion air supply must not be susceptible to

contaminants, which may cause corrosion or other

damage to the heat exchanger and components of the

boiler, causing failure of these parts or unsafe

operation.

Below is a list of products which must be avoided from

being stored or entering the boiler room or air supply

area:

PRODUCTS TO AVOID

• Spray cans containing chloro/fluorocarbons

• Permanent wave solutions

• Chlorinated waxes/cleaners

• Chlorine-based swimming pool chemicals

• Calcium chloride used for thawing

•Sodium chloride used for water softening

• Refrigerant leaks

• Paint or varnish removers

•Hydrochloric acid/muriatic acid

• Cements and glues

• Antistatic fabric softeners used in clothes dryers

• Chlorine-type bleaches, detergents and cleaning solvents

found in household laundryrooms.

• Adhesives used to fasten building products and other

similar products.

ANNUAL SERVICE AND GENERAL MAINTENANCE

Atrained and qualified service technician should

perform inspection and general maintenance listed in

Installation and Operating Instructions (Publication No.

B-40) before each heating season and at regular

intervals.

SAFETY AND OPERATING INSTRUCTIONS

Follow the lighting instructions in this manual. These

instructions are also attached to the boiler.

SAFETY INFORMATION

For Y

our Safety Read Before Operating

A. This appliance does not have a pilot. It is equipped with

an ignition device which automatically lights the burner.

Do not try to light the burner by hand.

B. BEFORE OPERATING smell all around the appliance

area for gas. Be sure to smell next to the floor because

some gas is heavier than air and will settle on the floor.

WHATTODO IF YOU SMELL GAS:

•Do not try to light any appliance.

•Do not touch anyelectric switch: do not use any

phone in your building.

• Immediately call your gas supplier from a neighbor’s

phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier,call the fire

department.

C. Use only your hand to turn the gas supply shut off

valve. Never use tools. If the supply shut off will not turn

by hand, don’t try to repair it, call a qualified service

technician. Force or attempted repair may result in a

fire or explosion.

D. DO NOT use this appliance if any part has been under

water. Immediately call a qualified service technician to

inspect the appliance and to replace any part of the

control system and any gas control which has been

under water.

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above.

2. Set the thermostat to lowest setting.

3. Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition device

which automatically lights the burner. Do not tryto light

the burner by hand.

5. Open the gas supply shut off valve, by turning the

handle to be parallel to the gas piping. (See Figure 8).

6. Wait five (5) minutes (longer for propane) to clear out

any gas, then smell for gas, including near the floor. If

you then smell gas, STOP! Follow “B” in the safety

information above on this page. If you don’t smell gas,

go to next step.

7. Turn on all electric power to the appliance.

8. Set thermostat to desired setting.

If the appliance will not operate, follow the instructions

“ToTurnOff Gas to Appliance” and call your service

technician or gas supplier.

To Turn Off Gas to Appliance

1. Set thermostat to lowest setting.

2. Turn off all electric power to the appliance if service

is to be performed.

3. Close the gas supply shut off valve, by turning the

handle to be perpendicular to the gas piping.

(See Figure 8).

WARNING: If you do not follow these instructions exactly, a

fire or explosion mayresult causing property damage,

personal injuryor loss of life.

GAS SUPPLY SHUTOFF VALVE

IN “OPEN” POSITION

GAS SUPPLY SHUTOFF VALVE

IN “CLOSED” POSITION

TURN 90˚

TO CLOSE

TURN 90˚

TO OPEN

Figure 8.

Bobcat Model B-120A and B-200A 8

Removing Jacket Front Panel

1. Turn black screws 1⁄4turn to open position.

2. Remove front panel.

To replace the panel, reverse procedure.

INTEGRATED BOILER CONTROL

The integrated boiler control monitors the status of the

room thermostat, high limit switch, low water cutoff (if

installed), water inlet and outlet sensors, flue gas sensor

and flame sensor. It controls the operation of the circula-

tor, combustion blower, gas valve and spark ignitor. The

boiler control also determines the sequence of operation

and timing for pre and post purge periods, trial for ignition

and lock out.

The control display board provides information on boiler

operation on a mode and temperature display and can be

viewed, programmed and reset with specific push buttons.

Diagnostic information is also provided on the display, to

help determine the cause of boiler failure. (See Figure 9).

BOILER CONTROL AND DISPLAY FEATURES

(See Figure 9)

A. BOILER OPERATION STATUS: “Mode Display”

shows status of boiler operation. (See Table 1).

B. VIEW AND CHANGING TEMPERATURES: Setting

boiler supply water temperature and water tank

temperatures (See Table 2).

Press “Select” button for viewing following different

modes on “Mode Display”

1. While “c” is blinking, boiler supply water

temperature for space heating may be set to

desired temperature.The setting range is between

90˚ to 185˚F.

2. While “d” is blinking, boiler supply water tempera-

ture for DHW may be set to desired temperature.

The setting range is between 104˚ to 185˚F.

3. While “t” is blinking, DHW tank temperature may be

set to desired temperature (if tank is equipped with

sensor). The setting range is between 104˚ to 185˚F.

4. View actual following temperatures on

“Temperature Display”, Press “Select” button

for selection:

a. Supply water temperature – Select #1 on

“Mode Display”.

b. Return water temperature – Select #2 on

“Mode Display”.

c. Domestic hot water tank temperature (if tank

equipped with sensor) – Select #3 on

“Mode Display”.

d. Flue gas temperature – Select #4 on

“Mode Display”.

e. Outside temperature (if outside sensor is used)

–Select #5 on “Mode Display”.

C. Display Board Pushbuttons:

1. Reset -Used to clear a Lockout Error

(indicated with an “A” in the “Mode Display”)

2. Select -Used to scroll through the modes in the

“Viewand Changing Temperatures” and

“Viewing and Changing System Setting” menus.

3. Enter -Used to store values that are changed in

the “View and Changing Temperatures” and

“Viewing and Changing System Setting” menus.

4. Up -Used to increase values in the “Viewand

Changing Temperatures” and “Viewing and

Changing System Setting” menus.

5. Down -Used to decrease values in the “View and

Changing Temperatures” and “Viewing and

Changing System Setting” menus.

“MODE”

DISPLAY

“BURNER STATUS”

STEADY DOT = BURNER ON

BLINKING DOT = BURNER OFF

MODE

“TEMPERATURE”

DISPLAY

(3 DIGITS)

TEMPERATURE

“UP”

PUSH BUTTON

“DOWN”

PUSH BUTTON

“ENTER”

PUSH BUTTON

“SELECT”

PUSH BUTTON

“RESET”

PUSH BUTTON

RESET SELECT ENTER

Figure 9. Display Board

Bobcat Model B-120A and B-200A

Mode

Display Description & Temperature Display

Boiler is on stand-by mode.

Temperature display shows supply water Temp.

Space heating mode.

Temperature display shows supply water Temp.

Domestic hot water mode.

Temperature display shows supply waterTemp.

Frost protection mode.**

Temperature displayshows supply water Temp.

Lockout (Alarm) condition.

Temperature Displayindicates the lockout code

Reset button must be pressed to resume normal operation.

Error Condition. *

Temperature display indicates the error code.

Warning Condition. ***

Temperature display indicates the error code.

Bobcat Boiler Display Board

“Boiler Operation Status”

Note:

Blinking dot on “Mode Display” indicates active heating control, burner off. Steady dot

indicates burner is on.

*: Error must be corrected to resume boiler operation. Pressing the “Reset” button is not

required.

**:The boiler circulator is energized, when boiler water temperature drops below 50˚F.

***: Error must be corrected to resume DHW operation. Space heating not affected.

Pressing the “Reset” button is not required.

Table 1

Table 1 Table 3

Table 2 Table 1 Table 3

Bobcat Model B-120A and B-200A 10

Mode

Display Description & Temperature Display

Space heating supply water temperature could be

changed by pressing “Up/Down” button. Settable from

90˚F to 185˚F (steps of 1 F). The default valve is 176˚ F

Press “Enter” button to store. (see note 1)

Domestic hot water supply temperature could be changed

by pressing “Up/Down” button. Settable from

104˚F to 185˚F (steps of 1 F). The default valve is 176˚ F

Press “Enter” button to store.

(see note 2)

Domestic hot water tank temperature could be changed by

pressing “Up/Down” button. Settable from 104˚F to 160˚F

(steps of 1 F). The default valve is 140˚ F.

Press “Enter” button to store. (see note 3)

Temperature displayshows actual

supply water temperature.

Temperature display shows actual

return water temperature.

Temperature displayshows actual DHW tank temperature.

(if the water tank is equipped with sensor)

Temperature displayshows actual flue gas temperature.

Temperature displayshows actual outside temperature.

(boilers with outdoor sensor)

Table 2: Viewing and Changing Temperatures

Press “Select” button for viewing different modes on “Mode Display”

Notes:

1. For space heating mode “0” (boilers not utilizing outdoor sensor)

2. For DHW mode “2” (storage tank with Aquastat)

3. For DHW mode “1” (storage tank with sensor)

Table 2

Table 2 Table 1 Table 3

Blinking

Bobcat Model B-120A and B-200A

DIAGNOSTIC ERROR CODES

WARNING:

Ifan operational problem has occurred, the boiler will

shut off and show an “A”, “E” or “H” in the mode display,

along with an error code in the temperature display.

Do not attempt performing any service under these

conditions, but do note the mode and temperature dis-

play indication, in case the problem clears itself. An “A”

indication error can be cleared by pressing the reset

button once, which will allow re-try of operation. Do not

repeatedly press the reset button in this case, or if an

“E” or “H” indication error is displayed. Call a trained,

experienced service technician to troubleshoot and cor-

rect the problem. The Bobcat Installation and Operating

Instructions, publication B-40 contain a full troubleshoot-

ing section for this. Turn off all electric power ot the boil-

er before service.

A. LOCKOUT ERRORS:

Indicated by an “A” in the mode display. The reset

button must be pressed to clear the error and retry

operation. The temperature displayshows the error

code.

B. BLOCKING ERRORS:

Indicated by an “E” in the mode display. Operation is

automatically restored, once the condition returns to

normal or is fixed. The temperature display shows

the error code. Pressing the “Reset” button is not

required.

C. WARNING ERRORS:

Indicated by an “H” in the mode display. Operation

of the space heating mode is not affected, and the

warning is displayed intermittently. Operation of the

DHW mode is automatically restored, once the

condition is fixed. The temperature display shows

the error code. Pressing the “Reset” button is

not required.

ERROR

CODE INDICATION

01 Ignition Failure - 3 unsuccessful ignition

attempts in a row

02 Flame Failure - 3 losses of flame signal

during one demand

03 Water High Limit Open

04, 05, 09,

10, 12, 13,

14, 15, 16,

18, 32

Control Failure

19, 20 Flame Detected at Wrong Time

33 Fan Failure - RPM Error

ERROR

CODE INDICATION

01 Water Outlet Sensor Open

02 Water Inlet Sensor Open

03 Flue Gas Sensor Open

11 Water Outlet Sensor Shorted

12 Water Inlet Sensor Shorted

13 Flue Gas Sensor Shorted

19, 42,

45, 46,

47, 48

Control Failure

20 Flame Detected at Wrong Time

21 Polarity Error

22 Frequency Error

24 Earth Connection Faulty

30 Excess Flue Temperature

31 Low Water Cutoff Error

32 Excess Water Inlet Temperature

51 Reset Button Error

52 Boiler Model Selection Error

ERROR

CODE INDICATION

04 Domestic Hot Water Tank Sensor Open

14 Domestic Hot Water Tank Sensor Shorted

SLANT/FIN CORPORATION, Greenvale, N.Y. 11548 • Phone: (516) 484-2600

FAX: (516) 484-5921 •Canada: Slant/Fin LTD/LTEE,Mississauga, Ontario

www.slantfin.com

Slant Fin B 120A Users Manual

B-200A to the manual 075a0291-0df8-4210-a8f1-cc4b5e95ca9f

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