Bryant Liquid Cooled Prepackaged Standby Generators Aspas1Bbl025 Users Manual

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Owner’s Manual

ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS

SHOULD ATTEMPT INSTALLATION!!

This manual should remain with the unit.

Liquid-cooled, Prepackaged

Standby Generators

Model No. ASPAS1BBL025 (25kW)

Bryant

INTRODUCTION

Thank you for purchasing a Bryant home standby

generator system.

Every effort was expended to make sure that the

information and instructions in this manual are both

accurate and current at the time the manual was writ-

ten. However, the manufacturer reserves the right to

change, alter or otherwise improve this product(s) at

any time without prior notice.

READ THIS MANUAL THOROUGHLY

If any portion of this manual is not understood, con-

tact the nearest dealer for starting, operating and

servicing procedures.

Throughout this publication, and on tags and decals

affixed to the generator, DANGER, WARNING, CAU-

TION and NOTE blocks are used to alert personnel to

special instructions about a particular service or oper-

ation that may be hazardous if performed incorrectly

or carelessly. Observe them carefully. Their definitions

are as follows:

After this heading, read instructions that, if not

strictly complied with, will result in serious person-

al injury, including death, or considerable property

damage.

After this heading, read instructions that, if not

strictly complied with, may result in personal injury

or property damage.

After this heading, read instructions that, if not

strictly complied with, could result in damage to

equipment and/or property.

NOTE:

After this heading, read explanatory statements

that require special emphasis.

These safety warnings cannot eliminate the hazards

that they indicate. Common sense and strict compli-

ance with the special instructions while performing the

service are essential to preventing accidents.

Four commonly used safety symbols accompany the

DANGER, WARNING and CAUTION blocks. The type

of information each indicates is as follows:

This symbol points out important safety informa-

tion that, if not followed, could endanger personal

safety and/or property of others.

This symbol points out potential explosion hazard.

This symbol points out potential fire hazard.

This symbol points out potential electrical shock

hazard.

The operator is responsible for proper and safe use

of the equipment. Bryant strongly recommends that

the operator reads this Owner's Manual and thor-

oughly understands all instructions before using this

equipment. Bryant also strongly recommends

instructing other users to properly start and operate

the unit. This prepares them if they need to operate

the equipment in an emergency.

OPERATION AND MAINTENANCE

It is the operator's responsibility to perform all safety

checks, to make sure that all maintenance for safe

operation is performed promptly, and to have the

equipment checked periodically by a dealer. Normal

maintenance service adjustments and replacement of

parts are the responsibility of the owner/operator and,

as such, are not considered defects in materials or

workmanship within the terms of the warranty.

Individual operating habits and usage contribute to

the need for maintenance service.

Proper maintenance and care of the generator ensures

a minimum number of problems and keep operating

expenses at a minimum. See a dealer for service aids

and accessories.

Operating instructions presented in this manual

assume that the standby electric system has been

installed by a dealer or other competent, qualified

contractor. Installation of this equipment is not a “do-

it-yourself” project.

HOW TO OBTAIN SERVICE

When the generator requires servicing or repairs,

contact a dealer for assistance. Service technicians

are factory-trained and are capable of handling all

service needs.

When contacting a Bryant Dealer about parts and

service, always supply the complete model number

and serial number of the unit as given on the front

cover of this manual and on the DATA LABEL affixed

to the unit.



DANGER



YOUR BRYANT DEALER IS:

___________________________________________

Model No.__________ Serial No.___________

Dealer Name

Address

City State Zip Code

Phone Number

Table of Contents

Bryant Liquid-cooled 25 kW Generator

Bryant 1

INTRODUCTION................................................IFC

Read this Manual Thoroughly......................................IFC

Operation and Maintenance ........................................IFC

How to Obtain Service ................................................IFC

SAFETY RULES ....................................................2

Section 1 — GENERAL INFORMATION ............4

1.1 Generator ..............................................................4

1.2 Transfer Switch ....................................................4

1.3 Automatic System Operation ................................4

1.4 Generator AC Connection Systems........................4

1.5 Main Circuit Breaker ............................................4

1.6 Generator Fuel System ..........................................5

1.7 Engine Protective Devices ......................................5

1.8 Unpacking ............................................................6

1.9 Lifting the Generator ............................................6

1.10 Specifications ........................................................6

1.11 Fuel Consumption ................................................7

1.12 Reconfiguring the Fuel System for LP Vapor..........7

1.13 Engine Oil Recommendations ..............................7

1.14 Coolant Recommendations....................................8

1.15 Before Installation ................................................8

Section 2 — INSTALLATION ............................8

2.1 Standby Generator Installation ............................8

2.2 Generator Location................................................9

2.3 Generator Mounting and Support ........................9

2.4 Basic Standby Electric System ..............................9

2.5 Emergency Circuit Isolation Method......................9

2.6 Total Circuit Isolation Method ............................10

2.7 Grounding the Generator ....................................10

2.8 Generator AC Neutral Connections......................10

2.9 Transfer Switch Signal Connections....................10

2.10 Battery Installation ..............................................10

2.11 Preparation Before Start-Up ................................11

Section 3 — OPERATION ................................12

3.1 Engineered GTS Transfer Switch ........................12

3.2 Control Console Components..............................14

3.3 Manual Transfer and Startup..............................14

3.4 Engine Governor Adjustments ............................14

3.5 Retransfer and Shutdown....................................14

3.6 Automatic Operation ..........................................14

3.7 Weekly Exercise Cycle..........................................15

Section 4 — MAINTENANCE ..........................16

4.1 Maintenance Performed by Authorized

Service Facilities ..................................................16

4.2 Exhaust Manifold Procedure ..............................16

4.3 Intake Manifold Procedure ..................................16

4.4 Cylinder Head Procedure ....................................16

4.5 Cooling System....................................................17

4.6 Overload Protection for Engine DC

Electrical System ................................................17

4.7 Checking Fluid Levels ........................................17

4.8 Maintenance Owner/Operator

Can Perform ........................................................17

4.9 Miscellaneous Maintenance ................................19

4.10 Scheduled Maintenance ......................................21

Section 5 — TROUBLESHOOTING ..................24

Section 6 — NOTES ........................................25

Section 7 — ELECTRICAL DATA ....................28

Section 8 — EXPLODED VIEWS AND

PARTS LISTS ..............................36

Section 9 — INSTALLATION DIAGRAM ..........51

Section 10 — WARRANTY ...............................52

2 Bryant

Study these SAFETY RULES carefully before installing, operat-

ing or servicing this equipment. Become familiar with this

Owner’s Manual and with the unit. The generator can operate

safely, efficiently and reliably only if it is properly installed, oper-

ated and maintained. Many accidents are caused by failing to fol-

low simple and fundamental rules or precautions.

Bryant cannot anticipate every possible circumstance that

might involve a hazard. The warnings in this manual, and on

tags and decals affixed to the unit are, therefore, not all-inclu-

sive. If using a procedure, work method or operating technique

that Bryant does not specifically recommend, ensure that it is

safe for others. Also make sure the procedure, work method or

operating technique utilized does not render the generator

unsafe.

Despite the safe design of this generator, operating

this equipment imprudently, neglecting its mainte-

nance or being careless can cause possible injury or

death. Permit only responsible and capable persons

to install, operate or maintain this equipment.

Potentially lethal voltages are generated by these

machines. Ensure all steps are taken to render the

machine safe before attempting to work on the

generator.

Parts of the generator are rotating and/or hot

during operation. Exercise care near running gen-

erators.

GENERAL HAZARDS

• For safety reasons, Bryant recommends that this equip-

ment be installed, serviced and repaired by a Bryant Dealer

or other competent, qualified electrician or installation

technician who is familiar with applicable codes, standards

and regulations. The operator also must comply with all

such codes, standards and regulations.

• Installation, operation, servicing and repair of this (and

related) equipment must always comply with applicable

codes, standards, laws and regulations. Adhere strictly to

local, state and national electrical and building codes.

Comply with regulations the Occupational Safety and Health

Administration (OSHA) has established. Also, ensure that

the generator is installed, operated and serviced in accor-

dance with the manufacturer’s instructions and recommen-

dations. Following installation, do nothing that might render

the unit unsafe or in noncompliance with the aforemen-

tioned codes, standards, laws and regulations.

• The engine exhaust fumes contain carbon monoxide gas,

which can be DEADLY. This dangerous gas, if breathed in

sufficient concentrations, can cause unconsciousness or

even death. For that reason, adequate ventilation must be

provided. Exhaust gases must be piped safely away from

any building or enclosure that houses the generator to an

area where people, animals, etc., will not be harmed. This

exhaust system must be installed properly, in strict com-

pliance with applicable codes and standards.

• Keep hands, feet, clothing, etc., away from drive belts, fans,

and other moving or hot parts. Never remove any drive belt

or fan guard while the unit is operating.

• Adequate, unobstructed flow of cooling and ventilating air is

critical to prevent buildup of explosive gases and to ensure

correct generator operation. Do not alter the installation or

permit even partial blockage of ventilation provisions, as

this can seriously affect safe operation of the generator.

• Keep the area around the generator clean and uncluttered.

Remove any materials that could become hazardous.

• When working on this equipment, remain alert at all times.

Never work on the equipment when physically or mentally

fatigued.

• Inspect the generator regularly, and promptly repair or

replace all worn, damaged or defective parts using only fac-

tory-approved parts.

• Before performing any maintenance on the generator, dis-

connect its battery cables to prevent accidental start-up.

Disconnect the cable from the battery post indicated by a

NEGATIVE, NEG or (–) first. Reconnect that cable last.

• Never use the generator or any of its parts as a step.

Stepping on the unit can stress and break parts, and may

result in dangerous operating conditions from leaking

exhaust gases, fuel leakage, oil leakage, etc.

ELECTRICAL HAZARDS

• All generators covered by this manual produce dangerous

electrical voltages and can cause fatal electrical shock.

Utility power delivers extremely high and dangerous volt-

ages to the transfer switch as well as the standby generator.

Avoid contact with bare wires, terminals, connections, etc.,

on the generator as well as the transfer switch, if applicable.

Ensure all appropriate covers, guards and barriers are in

DANGER

Important Safety Instructions

Bryant Liquid-cooled 25 kW Generator

SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe

operation be copied and posted in potential hazard areas. Safety should be stressed to all

operators, potential operators, and service and repair technicians for this equipment.

SAVE THESE INSTRUCTIONS – This manual contains important instructions that should be

followed during installation and maintenance of the generator and batteries.

The engine exhaust from this product

contains chemicals known to the state

of California to cause cancer, birth

defects or other reproductive harm.

WARNING:

This product contains or emits chemicals

known to the state of California to cause

cancer, birth defects or other reproductive harm.

WARNING:

Bryant 3

place before operating the generator. If work must be done

around an operating unit, stand on an insulated, dry surface

to reduce shock hazard.

• Do not handle any kind of electrical device while standing

in water, while barefoot, or while hands or feet are wet.

DANGEROUS ELECTRICAL SHOCK MAY RESULT.

• If people must stand on metal or concrete while installing,

operating, servicing, adjusting or repairing this equipment,

place insulative mats over a dry wooden platform. Work on

the equipment only while standing on such insulative mats.

• The National Electrical Code (NEC), Article 250 requires

the frame and external electrically conductive parts of the

generator to be connected to an approved earth ground

and/or grounding rods. This grounding will help prevent

dangerous electrical shock that might be caused by a

ground fault condition in the generator set or by static elec-

tricity. Never disconnect the ground wire.

• Wire gauge sizes of electrical wiring, cables and cord sets

must be adequate to handle the maximum electrical current

(ampacity) to which they will be subjected.

• Before installing or servicing this (and related) equipment,

make sure that all power voltage supplies are positively

turned off at their source. Failure to do so will result in haz-

ardous and possibly fatal electrical shock.

• Connecting this unit to an electrical system normally sup-

plied by an electric utility shall be by means of a transfer

switch so as to isolate the generator electric system from the

electric utility distribution system when the generator is

operating. Failure to isolate the two electric system power

sources from each other by such means will result in dam-

age to the generator and may also result in injury or death

to utility power workers due to backfeed of electrical energy.

• Generators installed with an automatic transfer switch will

crank and start automatically when normal (utility) source

voltage is removed or is below an acceptable preset level. To

prevent such automatic start-up and possible injury to per-

sonnel, disable the generator’s automatic start circuit (bat-

tery cables, etc.) before working on or around the unit.

Then, place a “Do Not Operate” tag on the generator control

panel and on the transfer switch.

• In case of accident caused by electric shock, immediately

shut down the source of electrical power. If this is not pos-

sible, attempt to free the victim from the live conductor.

AVOID DIRECT CONTACT WITH THE VICTIM. Use a

nonconducting implement, such as a dry rope or board, to

free the victim from the live conductor. If the victim is

unconscious, apply first aid and get immediate medical

help.

• Never wear jewelry when working on this equipment.

Jewelry can conduct electricity resulting in electric shock,

or may get caught in moving components causing injury.

FIRE HAZARDS

• Keep a fire extinguisher near the generator at all times. Do

NOT use any carbon tetra-chloride type extinguisher. Its

fumes are toxic, and the liquid can deteriorate wiring insu-

lation. Keep the extinguisher properly charged and be

familiar with its use. Consult the local fire department for

any questions pertaining to fire extinguishers.

EXPLOSION HAZARDS

• Properly ventilate any room or building housing the gener-

ator to prevent build-up of explosive gas.

• Do not smoke around the generator. Wipe up any fuel or oil

spills immediately. Ensure that no combustible materials

are left in the generator compartment, or on or near the

generator, as FIRE or EXPLOSION may result. Keep the

area surrounding the generator clean and free from debris.

• Bryant generator sets may operate using one of several

types of fuels. All fuel types are potentially FLAMMABLE

and/or EXPLOSIVE and should be handled with care.

Comply with all laws regulating the storage and handling of

fuels. Inspect the unit’s fuel system frequently and correct

any leaks immediately. Fuel supply lines must be properly

installed, purged and leak tested according to applicable

fuel-gas codes before placing this equipment into service.

• Diesel fuels are highly FLAMMABLE. Gaseous fluids such

as natural gas and liquid propane (LP) gas are extremely

EXPLOSIVE. Natural gas is lighter than air, and LP gas is

heavier than air. Install leak detectors accordingly.

STANDARDS INDEX

In the absence of pertinent standards, codes, regulations and

laws, the published information listed below may be used as

installation guide for this equipment.

NOTE:

It is essential to use the latest version of any stan-

dard to ensure correct and current information.

1. NFPA No. 37, STATIONARY COMBUSTION

ENGINES AND GAS TURBINES, available from the

National Fire Protection Association, 470 Atlantic

Avenue, Boston, MA 02210.

2. NFPA No. 76A, ESSENTIAL ELECTRICAL SYS-

TEMS FOR HEALTH CARE FACILITIES, available

same as Item 1.

3. NFPA No. 54, NATIONAL FUEL GAS CODE, avail-

able same as Item 1.

4. NFPA No. 58, AMERICAN NATIONAL STANDARD

FOR STORAGE AND HANDLING OF LIQUEFIED

PETROLEUM GAS, available same as Item 1.

5. NFPA No. 70, NFPA HANDBOOK OF NATIONAL

ELECTRIC CODE, available same as Item 1.

6. Article X, NATIONAL BUILDING CODE, available

from the American Insurance Association, 85 John

Street, New York, N.Y. 10038.

7. AGRICULTURAL WIRING HANDBOOK, available

from the Food and Energy Council, 909 University

Avenue, Columbia, MO 65201.

8. ASAE EP-3634, INSTALLATION AND MAINTE-

NANCE OF FARM STANDBY ELECTRICAL SYS-

TEMS, available from the American Society of

Agricultural Engineers, 2950 Niles Road, St.

Joseph, MI 49085.

9. NFPA No. 30, FLAMMABLE AND COMBUSTIBLE

LIQUIDS CODE, available same as Item 1.



Important Safety Instructions

Bryant Liquid-cooled 25 kW Generator

4 Bryant

1.1 GENERATOR

This equipment is a liquid-cooled, engine-driven gen-

erator set. The generator is designed to supply elec-

trical power that operates critical electrical loads

during utility power failure. The unit has been facto-

ry-installed in a weather resistant, all metal enclosure

and is intended for outdoor installation only. Use this

generator as a source of electrical power for the oper-

ation of 120 and/or 240VAC, single-phase loads.

This model is rated as follows:

Model ASPAS1BBL025: Provides 25,000 watts (25 kW) of single-

phase power.

If this generator is used to power electrical load

circuits normally powered by a utility power

source, it is required by code to install a trans-

fer switch. The transfer switch must effectively

isolate the electric system from the utility distri-

bution system when the generator is operating

(NEC 701). Failure to isolate an electrical system

by such means results in damage to the genera-

tor and may also result in injury or even death

to utility power workers due to backfeed of

electrical energy.

1.2 TRANSFER SWITCH

This generator system is intended to be used with a

matched automatic transfer switch. It is supplied

with a NEMA 3R enclosure. The NEMA 3R enclosure

is weather proof and can be used indoors or out-

doors. Follow these rules:

• Install the transfer switch on a firm, sturdy sup-

porting structure.

• To prevent switch distortion, level the switch if nec-

essary. This can be done by placing washers

between the switch enclosure and the mounting

surface.

• Never install the switch where water or any corro-

sive substance might drip onto the enclosure.

• Protect the switch at all times against excessive

moisture, dust, dirt, lint, construction grit and cor-

rosive vapors.

If a transfer switch is not included, one may be pur-

chased separately from a dealer.

1.3 AUTOMATIC SYSTEM OPERATION

When this generator, along with a transfer switch, has

been installed and interconnected, a circuit board in

the generator panel constantly monitors utility power

source voltage. Should that voltage drop below a pre-

set value, and remain at such a low state for a preset

amount of time, the generator cranks and starts. After

the generator starts, the transfer switch transfers load

circuits so the generator can power them.

When utility source voltage has been restored, the

switch re-transfers back to the utility source voltage

and the generator then shuts down.

Please reference the transfer switch manual for spe-

cific information.

1.4 GENERATOR AC CONNECTION

SYSTEMS

The generator was shipped from the factory with its

stator AC output leads connected in a single-phase,

3-wire generator AC connection system (Figure 1.1).

The stator assembly in this system consists of a pair

of stationary windings, with two leads brought out of

each winding. Each single winding can supply 120

VAC, 60 Hertz. When the two windings are connected

in series, a 240 VAC, 60 Hertz AC output results.

Typically the two “hot” leads in the circuit are Wires

No. 11 and 44. The “Neutral” leads are the junction

of Wires 22 and 33.

Figure 1.1 - Generator AC Connection System

1.5 MAIN CIRCUIT BREAKER

The generator’s main circuit breaker is included with

the unit as shipped from the factory. The breaker for

each unit is described in Figure 1.2.

NEUTRAL

Section 1 - General Information

Bryant Liquid-cooled 25 kW Generator

Model Rating Phase Actual Current C/B Rating* % over rating Circuit Breaker

ASPAS1BBL025 25,000 W 1 104.2 A 125 A 120% 125A BQ2

* Amp Rating of C/B structured under model.

Figure 1.2 - Main Circuit Breaker

Bryant 5

1.6 GENERATOR FUEL SYSTEM

This unit has been factory tested and adjusted using

a natural gas fuel system. If propane (LP) gas is pre-

ferred, refer to Section 1.12, Reconfiguring the Fuel

System for LP Vapor.

Fuel pressure for a natural gas set up should be five

inches to 14 inches of water column (0.18 to 0.5

psi) at all load ranges.

Fuel pressure for an LP vapor set up should be 11

inches to 14 inches of water column (0.4 to 0.5

psi) at all load ranges.

NOTE:

A separate gas line and regulator may be needed

to assure proper gas pressure to the generator.

Improper gas pressure can cause hard starting and

affect engine durability.

Gaseous fuels such as natural and LP (propane)

gas are highly explosive. Even the slightest

spark can ignite such fuels and cause an explo-

sion. No leakage of fuel is permitted. Natural

gas, which is lighter than air, tends to collect in

high areas. LP gas is heavier than air and tends

to settle in low areas.

1.7 ENGINE PROTECTIVE DEVICES

The engine has several safety switches which cause

the engine to automatically shut down under the fol-

lowing conditions: low oil pressure, high coolant tem-

perature, engine overspeed, low coolant level or over-

crank (Figure 1.3).

Figure 1.3 - Engine Protective Devices

1.7.1 LOW OIL PRESSURE SWITCH

This switch is normally-closed (N.C.) but is held open

by engine oil pressure during engine running. Should

operating oil pressure drop below about 8-10 psi

(55-68 kPa), the switch contacts close and the engine

shuts down automatically (Figure 1.4).

Figure 1.4 - Low Oil Pressure Switch

1.7.2 HIGH COOLANT TEMPERATURE

SWITCH

Normally open (N.O.) thermostatic switch has sens-

ing tip which is immersed in captive coolant. Should

coolant temperature exceed about 230°F (110°C), the

switch contacts close, which causes the engine to

shut down automatically (Figure 1.5).

Figure 1.5- High Coolant Temperature Switch

1.7.3 LOW COOLANT LEVEL SWITCH

Should engine coolant level drop below the level of

the high coolant temperature switch, it is possible for

the engine to overheat without automatic shutdown.

To prevent such overheating without automatic shut

down, the engine has a low coolant level sensor. If the

engine coolant drops too low, the engine automatical-

ly shuts down (Figure 1.6 on page 6).



Section 1 - General Information

Bryant Liquid-cooled 25 kW Generator

6 Bryant

Figure 1.6 - Low Coolant Level Sensor

1.7.4 OVERSPEED SHUTDOWN

Should AC frequency exceed about 72 Hz, circuit

board action will automatically shutdown the engine.

1.7.5 OVERCRANK SHUTDOWN

The engine control board uses a cyclic cranking

process when attempting to start the engine. The first

crank cycle is a 15-second crank followed by a seven-

second rest. This is followed by five more crank

cycles each with a seven second crank followed by a

seven-second rest.

If the engine fails to start after all six attempts, the start

attempt is stopped and the overcrank LED turns on.

1.7.6 LOW BATTERY

The engine control board continually monitors the

battery voltage and turns on the low battery LED if

the battery voltage falls below 12 VDC for one minute.

Low battery voltage is a non-latching alarm, which

will automatically clear if the battery voltage rises

above 12 VDC.

1.7.7 15A DC FUSE

This fuse is located inside the control panel. It pro-

tects the panel wiring and components from damag-

ing overload. The unit will not start or crank if the

fuse is blown. Replace the fuse with one of the same

size, type, and rating.

1.8 UNPACKING

1.8.1 UNPACKING PRECAUTIONS

Handle shipping cartons and crates with care. Use

care to avoid damage from dropping, bumping, colli-

sion, etc. Store and unpack cartons with the proper

side up, as noted on the shipping carton.

1.9 LIFTING THE GENERATOR

When lifting or hoisting equipment is used, be

careful not to touch overhead power lines. The

generators weight of more than 900 pounds

requires proper tools, equipment, and qualified

personnel to be used in all phases of handling

and unpacking.

1.10 SPECIFICATIONS

1.10.1 ENGINE

Make ......................................................................................Ford

Displacement ............................................153 inches3(2.5 liters)

Cylinder Arrangement......................................................4, in-line

Valve Arrangement................................................Overhead Cam

Firing Order........................................................................1-3-4-2

Number of Main Bearings............................................................5

Compression Ratio..........................................................9.37 to 1

No. of Teeth on Flywheel ........................................................164

Ignition Timing (Waste Spark System)

at 1800 rpm ..................................................36 degrees BTDC

Spark Plug Gap ............................................................0.044 inch

Recommended Spark Plugs ....................................0E96180241

Oil Pressure....................................................................30-50 psi

Crankcase Oil Capacity......................4.5 U.S. quarts (4.26 liters)

Recommended Engine Oil........................................SAE 15W-40

Type of Cooling System ..................Pressurized, closed recovery

Cooling Fan ..............................................................Pusher Type

Cooling System Capacity ......................2 U.S. gallons (7.6 liters)

Recommended Coolant ............Use a 50-50 mixture of ethylene

glycol base and deionized water.

Home standby control board assembly part

number 0E9704 must be used on 1800 rpm gen-

erators.

1.10.2 GENERATOR

Model ..................................................................ASPAS1BBL025

Rated Max. Cont. AC

Power Output (kW) ................................................................*25

Rated Voltage (volts) ........................................................120/240

No. of Rotor Poles ......................................................................4

Driven Speed of Rotor ..........................................................1800

Rotor Excitation System ........................Direct excited brush type

Type of Stator......................................................................4 Wire

Rotor Insulation ................................................................Class F

Stator Insulation................................................................Class H



Section 1 — General Information

Bryant Liquid-cooled 25 kW Generator

* Rated power of generator is subject to and limited by such

factors as ambient temperature, altitude, engine condition,

and other factors. Engine power will decrease about 2.5% for

each 1000 feet above 500 feet and will decrease an addition-

al 2.5% for each 10°F above 104°F. Maximum output power of

the generator is limited by maximum engine power.

1.11 FUEL CONSUMPTION

25 kW Models

Using Natural Gas ........................................441 cu. ft. per hour

Using LP Gas ..............................175 cubic ft.(4.8 gal.) per hour

Fuel pressure for a natural gas set up should be five

inches to 14 inches of water column (0.18 to 0.5

psi) at all load ranges.

Fuel pressure for an LP vapor set up should be 11

inches to 14 inches of water column (0.4 to 0.5

psi) at all load ranges.

NOTE:

Fuel consumption is given at rated maximum con-

tinuous power output when using natural gas

rated at 1000 Btu per cubic foot; or LP gas rated

2520 Btu per cubic foot. Actual fuel consumption

obtained may vary depending on such variables as

applied load, ambient temperature, engine condi-

tions and other environmental factors.

1.12 RECONFIGURING THE FUEL

SYSTEM FOR LP VAPOR

NOTE:

All models are configured for natural gas from the

factory.

To reconfigure the fuel system from NG to LP vapor,

follow these steps:

1. Turn the main gas supply off.

2. Remove the carburetor fuel hose from the outlet

port (Port 1) of the demand regulator (Figure

1.8).

3. Remove the brass hose fitting from the outlet port

(Port 1) of the demand regulator.

4. Remove pipe plug from Port 2.

5. Install brass hose fitting into Port 2.

6. Install pipe plug into Port 1.

7. Connect carburetor gas hose to brass fitting.

8. Tighten all clamps and plugs.

9. Make sure fuel supply is of the proper pressure

and type for configuration.

10. Move dip switch position 4 on the control board

to the off position (LP vapor, see Figure 3.2 and

Section 3.8).

11. Reverse the procedure to convert back to natural

gas.

Figure 1.8 — Reconfigure the Fuel System

NOTE:

Port 1 is for NG only and Port 2 is for LP vapor

only. No provision for dual fuel has been made.

Serious injury or damage may occur if not con-

figured properly. Please consult a dealer with

any questions.

1.13 ENGINE OIL RECOMMENDATIONS

The unit has been filled with 15W-40 engine oil at the

factory. Use a high-quality detergent oil classified “For

Service SJ or latest available.” Detergent oils keep the

engine cleaner and reduce carbon deposits. Use oil

having the following SAE viscosity rating, based on

the ambient temperature range anticipated before the

next oil change:

NOTE:

Synthetic oil is highly recommended when the

generator will be operating in ambient tempera-

tures which regularly exceed 90° F and/or fall

below 30° F.

Any attempt to crank or start the engine before

it has been properly serviced with the recom-

mended oil may result in an engine failure.

DANGER

NG FUEL SYSTEM LP FUEL SYSTEM

Port 1 Port 2

FUEL HOSE

BRASS HOSE

FITTING

OUT

PORT 2

PLUG

FUEL HOSE

BRASS HOSE

FITTING

FUEL INLET

PLUG

OUT

PORT 1

Section 1 — General Information

Bryant Liquid-cooled 25 kW Generator

Bryant 7

Temperature Oil Grade (Recommended)

Above 80° F (27° C) SAE 30W or 15W-40

32° to 80° F (-1° to 27° C) SAE 20W-20 or 15W-40

Below 32° F (0° C) SAE 10W or 15W-40

8 Bryant

1.14 COOLANT RECOMMENDATIONS

Use a mixture of half low silicate ethylene glycol base

anti-freeze and half deionized water. Cooling system

capacity is about 8 U.S. quarts (7.6 liters). Use only

deionized water and only low silicate anti-freeze. If

desired, add a high quality rust inhibitor to the rec-

ommended coolant mixture. When adding coolant,

always add the recommended 50-50 mixture.

Do not use any chromate base rust inhibitor

with ethylene glycol base anti-freeze or chromi-

umhydroxide (“green slime”) forms and will

cause overheating. Engines that have been

operated with a chromate base rust inhibitor

must be chemically cleaned before adding ethyl-

ene glycol base anti-freeze. Using any high sili-

cate anti-freeze boosters or additives will also

cause overheating. DO NOT use any soluble oil

inhibitor for this equipment.

1.15 BEFORE INSTALLATION

Before installing this equipment, check the ratings of

both the generator and the transfer switch. Read

“Emergency Isolation Method” and “Total Circuit

Isolation Method” in Sections 2.5 and 2.6.

The generator’s rated wattage/amperage capacity

must be adequate to handle all electrical loads that

the unit will power. It may be necessary to group the

critical (essential) loads together and wire them into

a separate “emergency” distribution panel.

This generator can be installed in conjunction with

an engineered transfer switch, if necessary.

The standard prepackaged transfer switch does not

have sensing or controlling circuit boards. Instead,

the generator control console houses a “Printed

Circuit Board Assembly”, which controls all phases

of operation, including engine start up and load

transfer.

2.1 STANDBY GENERATOR

INSTALLATION

Connecting this generator to an electrical sys-

tem normally supplied by an electric utility

shall be by means of a transfer switch, so as to

isolate the electric system from the utility distri-

bution system when the generator is operating.

Failure to isolate the electric system by these

means will result in damage to the generator

and may also result in injury or death to utility

workers due to backfeed of electrical energy.

If an open bottom is used, the engine-genera-

tor must be installed over non-combustible

materials and should be located such that com-

bustible materials are not capable of accumu-

lating under the generator set.

Only qualified, competent installation contractors or

electricians thoroughly familiar with applicable

codes, standards and regulations should install this

standby electric power system. The installation must

comply strictly with all codes, standards and regula-

tions pertaining to the installation.

After the system has been installed, do nothing

that might render the installation in noncompli-

ance with such codes, standards and regula-

tions.

NOTE:

For more information about the installation of a

standby system contact a dealer.

2.1.1 NFPA STANDARDS

The following published standards booklets pertain-

ing to standby electric systems are available form the

National Fire Protection Association (NFPA),

Batterymarch Park, Quincy, MA 02269:

NOTE:

It is essential to use the latest version of any stan-

dard to ensure correct and current information.

• NFPA No. 37, STATIONARY COMBUSTION

ENGINES AND GAS TURBINES.

• NFPA No. 76A, ESSENTIAL ELECTRICAL SYS-

TEMS FOR HEALTH CARE FACILITIES.

• NFPA No. 220, STANDARD TYPES OF BUILDING

CONSTRUCTION

• NFPA No. 68, GUIDE FOR EXPLOSION VENTING

• NFPA No. 70, NATIONAL ELECTRICAL CODE.

• NFPA No. 30, FLAMMABLE AND COMBUSTIBLE

LIQUIDS CODE.

• NFPA No. 10, INSTALLATION, MAINTENANCE AND

USE OF PORTABLE FIRE EXTINGUISHERS.

2.1.2 OTHER PUBLISHED STANDARDS

In addition to NFPA standards, the following infor-

mation pertaining to the installation and use of

standby electric systems is available:

NOTE:

It is essential to use the latest version of any stan-

dard to ensure correct and current information.

• Article X, NATIONAL BUILDING CODE, available

from the American Insurance Association, 85 John

Street, New York, N.Y. 10038.



DANGER

Section 2 — Installation

Bryant Liquid-cooled 25 kW Generator

Bryant 9

• AGRICULTURAL WIRING HANDBOOK, obtainable

from the Food and Energy Council, 909 University

Avenue, Columbia, MO, 65201.

• ASAE EP-364.2, INSTALLATION AND MAINTE-

NANCE OF FARM STANDBY ELECTRIC POWER,

available from the American Society of Agricultural

Engineers, 2950 Niles Road, St. Joseph, MI 49085.

• A52.1, AMERICAN NATIONAL STANDARD FOR

CHIMNEYS, FIREPLACES AND VENTING SYS-

TEMS, available from the American National

Standard Institute, 1430 Broadway, New York, N.Y.

10018.

2.2 GENERATOR LOCATION

Install the generator set, in its protective enclosure

outdoors, where adequate cooling and ventilating air

always is available. Consider these factors:

• Install the unit where air inlet and outlet openings

will not become obstructed by leaves, grass, snow,

etc. If prevailing winds will cause blowing or drift-

ing, consider using a windbreak to protect the unit.

• Install the generator on high ground where water

levels will not rise and endanger it.

• Allow sufficient room on all sides of the generator

for maintenance and servicing. Five feet allowance

of space is recommended on all sides. Local codes

may supercede this recommendation.

• Where strong prevailing winds blow from one

direction, face the generator air inlet openings into

the prevailing winds.

• Install the generator as close as possible to the

transfer switch. This reduces the length of wiring

and conduit.

• Install the generator as close as possible to the fuel

supply, to reduce the length of piping. HOWEVER,

REMEMBER THAT LAWS OR CODES MAY REG-

ULATE THE DISTANCE.

2.3 GENERATOR MOUNTING AND

SUPPORT

Retain the generator compartment to a concrete slab

with 1/4-inch masonry type anchor bolts. Be sure the

bolts are long enough to retain the compartment. The

slab should be at least six inches thick and should

extend beyond the enclosure to a distance of at least

three inches on all sides.

2.4 BASIC STANDBY ELECTRIC

SYSTEM

Figure 2.1 shows a schematic diagram of a basic

standby electric system. Both the UTILITY power

supply and the STANDBY GENERATOR output are

connected to an approved transfer switch. The trans-

fer switch is required by electrical code and serves

the following functions:

• Permits the LOAD circuits to be connected to only

one power supply at a time.

• Prevents electrical backfeed between the generator

and the UTILITY power circuits.

Notice that both the STANDBY and the UTILITY

power supplies to the transfer switch are protected

against overload by a main line circuit breaker.

Figure 2.1 – Basic Standby Electric System

NOTE:

Bryant recommends the use of a Bryant transfer

switch in conjunction with this generator.

2.5 EMERGENCY CIRCUIT ISOLATION

METHOD

This prevents overloading the generator by keeping

electrical loads below the wattage/amperage capacity

of the generator. If the generator is powering only crit-

ical loads, within the wattage/amperage capacity, dur-

ing utility power outages, consider using the emer-

gency circuit isolation method.

Critical electrical loads are grouped together and

wired into a separate “Emergency Distribution

Panel.” Load circuits powered by that panel are with-

in the wattage/amperage capacity of the generator set.

The transfer switch must meet the following require-

ments:

• It must have an ampere rating equal to the total

amperage rating of the emergency distribution

panel circuit.

• It must be installed between the building’s main

distribution panel and the emergency distribution

panel.

Section 2 — Installation

Bryant Liquid-cooled 25 kW Generator

10 Bryant

2.6 TOTAL CIRCUIT ISOLATION

METHOD

When a generator capable of powering all electrical

loads in the circuit is to be installed, the “Total

Circuit Isolation Method” may be used. The following

apply to the transfer switch in this type of system.

• Ampere rating of the transfer switch must equal

the ampere rating of the normal incoming utility

service.

• The transfer switch is installed between the utility

service entrance and the building distribution

panel.

2.7 GROUNDING THE GENERATOR

The National Electrical Code requires the frame and

external electrically conductive parts of this equip-

ment to be properly connected to an approved earth

ground and/or grounding rods. For that purpose, a

GROUND LUG (Figure 2.2) is provided on the gener-

ator mounting base. Consult a qualified electrician

for grounding requirements in the area. Grounding

procedures must meet local regulations.

Do not connect the ground wire to any pipe

that carries a flammable or explosive substance

– FIRE or an EXPLOSION may result.

Proper grounding helps protect personnel against

electrical shock in the event of a ground fault condi-

tion in the generator or in connected electrical

devices. In addition, grounding helps dissipate static

electricity that often builds up in ungrounded devices.

Figure 2.2 – Generator Grounding Lug (typical)

2.8 GENERATOR AC NEUTRAL

CONNECTIONS

Bryant uses an UNGROUNDED AC neutral.

Grounding is recommended only at the main service

entrance. If the neutral wire is grounded and one of

the phase loads becomes grounded, the excessive

current opens the load circuit breaker or collapses

the generator field. The actual result depends on the

electrical characteristics of the particular installed

generator.

Failure to connect the generator neutral prop-

erly will result in unbalanced line-to-neutral

voltages. Resulting high voltages will cause

equipment damage.

2.9 TRANSFER SWITCH SIGNAL

CONNECTIONS

It is necessary to connect the control wires between

the generator and the transfer switch.

Control system interconnections consist of N1, N2,

T1, T2 and leads 23 and 194. Control system inter-

connection leads must be run in a conduit that is sep-

arate from the AC power lead. Recommended wire

gauge sizes for this wiring depends on the length of

the wire, as recommended below:

2.10 BATTERY INSTALLATION

Standby generators installed with automatic

transfer switches will crank and start automati-

cally when NORMAL (UTILITY) source voltage is

removed or is below an acceptable preset level.

To prevent such automatic start-up and possible

injury to personnel, do not connect battery

cables until certain that normal source voltage

at the transfer switch is correct and the system

is ready to be placed into operation. Ensure

that the 5A and 15A fuses in the control panel

are removed when connecting or disconnecting

battery cables.

DANGER

Section 2 — Installation

Bryant Liquid-cooled 25 kW Generator

MAXIMUM WIRE LENGTH RECOMMENDED WIRE

SIZE

460 feet (140m) No. 18 AWG.

461 to 730 feet (223m) No. 16 AWG.

731 to 1,160 feet (354m) No. 14 AWG.

1,161 to 1,185 feet (565m) No. 12 AWG.

Bryant 11

Storage batteries give off explosive hydrogen

gas. This gas can form an explosive mixture

around the battery for several hours after

charging. The slightest spark can ignite the gas

and cause an explosion. Such an explosion can

shatter the battery and cause blindness or

other injury. Any area that houses a storage

battery must be properly ventilated. Do not

allow smoking, open flame, sparks or any spark

producing tools or equipment near the battery.

Battery electrolyte fluid is an extremely corro-

sive sulfuric acid solution that can cause severe

burns. Do not permit fluid to contact eyes, skin,

clothing, painted surfaces, etc. Wear protective

goggles, protective clothing and gloves when

handling a battery. If fluid is spilled, flush the

affected area immediately with clear water.

Do not dispose of the battery in a fire. The bat-

tery is capable of exploding.

Do not open or mutilate the battery. Released

electrolyte can be toxic and harmful to the skin

and eyes.

The battery represents a risk of high short cir-

cuit current. When working on the battery,

always remove watches, rings or other metal

objects, and only use tools that have insulated

handles.

2.10.1 VENTED BATTERIES

The electrolyte is a dilute sulfuric acid that is

harmful to the skin and eyes. It is electrically

conductive and corrosive. The following proce-

dures are to be observed:

• Wear full eye protection and protective clothing,

• Where electrolyte contacts the skin, wash it off

immediately with water,

• Where electrolyte contacts the eyes, flush thor-

oughly and immediately with water and seek med-

ical attention, and

• Spilled electrolyte is to be washed down with an

acid-neutralizing agent. A common practice is to

use a solution of one pound (500 grams) bicarbon-

ate of soda to one gallon (4 liters) of water. The

bicarbonate of soda solution is to be added until

the evidence of reaction (foaming) has ceased. The

resulting liquid is to be flushed with water and the

area dried.

Lead acid batteries present a risk of fire

because they generate hydrogen gas. The fol-

lowing procedure are to be followed:

• DO NOT SMOKE when near batteries,

• DO NOT cause flame or spark in battery area, and

• Discharge static electricity from body before touch-

ing batteries by first touching a grounded metal

surface.

Servicing of batteries is to be performed or super-

vised by personnel knowledgeable of batteries and

the required precautions. Keep unauthorized person-

nel away from batteries.

The recommended battery is Group 26, 525 CCA/75

AH minimum at 0° F (-17.8° C). All batteries must be

at 100 percent state-of-charge before they are

installed on the generator.

When using maintenance-free batteries, it is not nec-

essary to check the specific gravity or electrolyte level.

Have these procedures performed at the intervals

specified in Section 4, “Maintenance.” A negative

ground system is used. Battery connections are

shown on the wiring diagrams. Make sure all batter-

ies are correctly connected and terminals are tight.

Observe battery polarity when connecting batteries to

the generator set.

NOTE:

Damage will result if the battery connections are

made in reverse.

2.11 PREPARATION BEFORE START-UP

The instructions in this section assume that the

standby generator has been properly installed, serv-

iced, tested, adjusted and otherwise prepared for use

by a competent, qualified installation contractor. Be

sure to read the “Safety Rules” on pages 2 and 3, as

well as all other safety information in this manual,

before attempting to operate this (and related) equip-

ment.

2.11.1 PRIOR TO INITIAL START-UP

Prior to initially starting the generator, it must

be properly prepared for use. Any attempt to

crank or start the engine before it has been

properly serviced with the recommended types

and quantities of engine fluids (oil, coolant,

fuel, etc.) may result in an engine failure.

Before starting the generator for the first time, the

installer must complete the following procedures. For

follow-up maintenance information and/or service

intervals, please refer to Section 4, “Maintenance.”



Section 2 — Installation

Bryant Liquid-cooled 25 kW Generator

12 Bryant

Section 3 - Operation

Bryant Liquid-cooled 25 kW Generator

2.11.2 TRANSFER SWITCH

If this generator is used to supply power to any elec-

trical system normally powered by an electric utility,

the National Electrical Code requires that a transfer

switch be installed. The transfer switch prevents elec-

trical backfeed between two different electrical sys-

tems, (for additional information, see the applicable

transfer switch manual for this unit). The transfer

switch, as well as the generator and other standby

components, must be properly located and mounted

in strict compliance with applicable codes, standards

and regulations.

2.11.3 FUEL SYSTEM

Make sure the fuel supply system to the generator (a)

delivers the correct fuel at the correct pressure and

volume and, (b) is properly purged and leak tested

according to code. No fuel leakage is permitted.

2.11.4 GENERATOR SET LUBRICATION

Check the engine crankcase oil level before operating

and add oil to the proper level – the dipstick “FULL”

mark. Never operate the engine with the oil level

below the dipstick “ADD” mark. See “Specifications”

and “Engine Oil Recommendations”.

NOTE:

This engine is shipped from the manufacturer

with 15W-40 oil. This oil should be changed after

30 hours of operation.

2.11.5 ENGINE COOLANT

Have the engine cooling system properly filled with

the recommended coolant mixture. Check the system

for leaks and other problems. See “Specifications”

and “Coolant”.

2.11.6 BELT TENSION

Check the engine fan belt tension and condition prior

to placing the unit into service and at recommended

intervals. Belt tension is correct when a force of

approximately 22 pounds (10 kg), applied midway

between pulleys, deflects the belt about 3/8- to 5/8-

inches (10 to 16 mm).

2.11.7 ELECTRICAL SYSTEM

Make sure the generator is properly connected to an

approved earth ground and/or ground rod.

Make sure the generator battery is fully charged,

properly installed and interconnected, and ready for

use.

Check to ensure that there are no loose electrical con-

nections. Restrain any loose wires to keep them clear

of any moving generator set components.

3.1 CONTROL CONSOLE

COMPONENTS

The components of a home standby generator control

console (Figure 3.1) are as follows:

3.1.1 AUTO/OFF/MANUAL SWITCH

Use this three-position switch as follows:

• Set the switch to AUTO for fully automatic opera-

tion. See “Automatic Operation” (Section 3.5).

• Set switch to MANUAL position to crank and start

the generator engine.

• Set switch to OFF position to shut down an oper-

ating engine. With OFF selected, operation will not

be possible.

Figure 3.1 - Home Standby Generator Panel

With switch set to AUTO, engine can crank and

start suddenly without warning. Such automat-

ic start up normally occurs when utility source

voltage drops below a pre-set level. To prevent

possible injury that might be caused by such

sudden starts, set AUTO/OFF/ MANUAL switch

to OFF before working on or around the unit.

Then, place a “DO NOT OPERATE” tag on con-

trol console.

3.1.2 FAULT INDICATOR LEDS

(SEE CHART ON PAGE 13)

These LEDs turn ON when one or more of the follow-

ing engine faults occurs and the engine shuts down.

• Low Oil Pressure

• Overcrank

• Low Battery

• Overspeed/Engine Speed Signal Fault

• High Coolant Temperature/Low Coolant Level

See Section 1.7 for further explanation of engine pro-

tection functions.



DANGER

FOR STAND-BY SERVICE CONNECT OUTPUT OF GENERATOR TO SUITABLY RATED

TRANSFER SWITCH IN ACCORDANCE WITH CANADIAN ELECTRICAL CODE

PART I

ATTENTION: POUR L'ALIMENTATION DE RESERVE, CONNECTER LA SORTIE DE LA

CE A UN COMMUTATEUR DE CALIBRE APPROPRIE

CONF

CANADIEN DE L'ECTRICITE

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WARNIN

0653



Bryant 13

3.1.3 15 AMP FUSE

This fuse protects the control console’s DC control

circuit against electrical overload and is located inside

the control panel. If the fuse has melted open because

of an overload, engine cranking and startup cannot

occur. If the fuse needs to be replaced, use only an

identical 15-amp replacement fuse (type ATO).

3.1.4 5 AMP FUSE

This fuse protects the battery charger against electri-

cal overload and is located inside the control panel. If

the fuse needs to be replaced, use only an identical 5-

amp replacement fuse (type ATO).

NOTE:

This fuse will not remove the + battery input

power from the PCB when it opens. This means

the exercise timer will not be reset.

3.1.5 SET EXERCISE TIME SWITCH

This switch allows programming the generator to

start and exercise automatically. “See Weekly

Exercise Cycle.”

3.1.6 SYSTEM READY LED

The System Ready LED (green) has two main pro-

poses. First, the LED will be ON when the

AUTO/OFF/MANUAL switch is in the AUTO position,

utility is present, and there are no system alarms.

This ON state indicates the system is fully ready for

automatic operation.

The system ready LED will be OFF when the switch

is in the manual or OFF positions.

The system ready LED is also used to indicate the

presence of utility sensing at the PCB when the switch

is either in the AUTO or MANUAL modes. The LED

will flash at the rate of 1/2 second on, 1/2 second off

if the utility sensing level is below the transfer back

threshold.

This secondary function is only available with dip

switch two in the OFF position (ATS - automatic

transfer switch application).



Section 3 - Operation

Bryant Liquid-cooled 25 kW Generator

Condition System Low Low High Over Over Switch Position

Ready (Green) Bat (Red) Oil (Red) Temp (Red) Speed (Red) Crank (Red) Manual Auto Off

Generator Switch is OFF X OFF OFF OFF OFF O

in the OFF Mode.

System Ready for ON X OFF OFF OFF OFF O

Automatic Start

Generator Switch is OFF X OFF OFF OFF OFF O

in the MANUAL Mode

Weekly Exerciser X Flashing Flashing Flashing Flashing Flashing O O O

is not set (-----------------------------------1 sec rate---------------------------------------)

Battery Voltage <12V X ON OOO

for >1 minute (Non-latching)

Battery Voltage <6V X ON OO

Unit Shutdown due OFF X ON O O

to Low Oil Pressure

Unit Shutdown due OFF X ON O O

to High Temperature

Unit Shutdown due OFF X ON O O

to Engine Overspeed

Unit Failed to Start OFF X ON O O

during it’s Crank Cycle

Utility Voltage is Flashing X OO

<45% of Nominal 1 sec rate

Engine Speed Signal Fault OFF X Flashing O O

Control Board Dip Switch OFF X The five RED LED’s will turn on one at a time O O O

is in wrong position.

X = indicates that the LED can be ON or OFF depending on the operating conditions.

14 Bryant

3.2 MANUAL TRANSFER AND

START-UP

To transfer electrical loads to the Standby (EMER-

GENCY) power source side and start the engine man-

ually, refer to the Owner’s Manual of the particular

transfer switch.

3.3 ENGINE GOVERNOR

ADJUSTMENTS

Engine speed governing is also controlled by the

engine control board. The engine governor has been

set by the factory during final testing of the generator

and should not be adjusted.

If, however, adjustments are necessary, the following

procedure should be followed (Figure 3.2 and Section

3.8):

1. Move dip switch 8 to the test mode (OFF posi-

tion).

2. Set all three potentiometers (pots) fully counter-

clockwise.

3. Under no load condition, increase the GAIN pot

as much as possible without causing instability.

4. Apply 1/4, 1/2, 3/4 and full load to the unit.

Decrease the GAIN pot if there is instability at any

load point.

5. Under full load condition, increase the stability

pot until the unit returns to 60 Hertz (or 50 Hertz

in 50 Hertz applications).

Figure 3.2 — Engine Governor Adjustment

6. Reduce load to 3/4, 1/2, 1/4 and no load.

Decrease the stability pot if there is instability at

any load point.

7. Adjust differential pot to make the recovery to

load changes even faster and minimize load

change undershoot and overshoot. If it is set too

high, it may introduce oscillations at some load.

It can be set to zero (full CCW) if a small amount

causes oscillations at some load.

3.4 RETRANSFER AND SHUTDOWN

When utility power source voltage has been restored,

electrical loads may be transferred back to that

source and the generator can be shut down as fol-

lows:

• Verify that utility power supply voltage to the trans-

fer switch has been positively turned Off, using

whatever means provided (such as utility main line

circuit breaker).

• Set the generator’s main circuit breaker to its Off

or Open position.

• Let the generator engine run at no-load for a few

minutes, to stabilize internal unit temperatures.

• On the generator console, set the Auto/Off/ Manual

switch to Off. Wait for engine to come to a complete

stop.

• For transfer to utility position, refer to the Owner’s

Manual of the particular transfer switch.

• Turn on the utility power supply to the transfer

switch, using whatever means provided (such as a

utility main line circuit breaker). The utility power

source now powers the loads.

3.5 AUTOMATIC OPERATION

To set the system for fully automatic operation, pro-

ceed as follows:

• Check that load circuits are connected to the

utility power supply.

• Set the AUTO/OFF/MANUAL switch to its AUTO

position.

• Set the generator main circuit breaker to its ON or

CLOSED position.

3.6 WEEKLY EXERCISE CYCLE

The engine control board will start and run the gen-

erator once every seven days for approximately 12

minutes. If utility should fail during this exercise

period, the engine control board will transfer the load

to the generator output and continue to run until util-

ity returns.

On the day, and at the time of day chosen for the gen-

erator to exercise, set the weekly exercise cycle as fol-

lows:

1. Place the AUTO/OFF/MANUAL switch in the auto

position (Figure 3.3).

Section 3 - Operation

Bryant Liquid-cooled 25 kW Generator

Bryant 15

Section 3 - Operation

Bryant Liquid-cooled 25 kW Generator

2. Press and hold the “Set Exercise” switch for five

seconds, then release.

At this time all five red LEDs will flash for approxi-

mately 10 seconds, then the engine will start and run

for it’s 12 minute exercise period, then shut down.

The generator will now start and run each week at the

same time.

Figure 3.3 - “Set Exercise Time” Switch

If DC power to the control board is lost, the weekly

exercise setting will be lost. This is indicated by all

five red LEDs continually flashing. In this state the

generator will still start and run in manual mode, or

automatically start and run if utility is lost while in

Auto mode, but it will not perform a weekly exercise

cycle.

If a failure occurs while running in this mode, the five

red LEDs will stop flashing, the individual fault LED

will turn on and the engine will shut down. Once the

AUTO/OFF/MANUAL switch has been switch to OFF,

the individual fault LED will turn OFF and the five

red LEDs will begin flashing to show exercise has still

not been set.

3.7 CONTROL BOARD DIP SWITCH

SETTINGS

Located on the control board is an eight position DIP

switch (see Figure 3.2). The eight different switches,

are used to configure the control board for the spe-

cific engine and governor being used and are pre-set

at the factory.

If the DIP switch settings are not set correctly,

the generator may not start or operate correct-

ly.

240 VAC can be present within the control

panel.

If it is necessary to select an alternate switch position,

move the AUTO/OFF/MANUAL switch to the OFF

position. Remove the 5 amp and 15 amp fuses in the

generator control panel. Move the DIP switch position

that needs to be changed to its new position. Wait five

seconds, then re-install the 5 and 15 amp fuses.

The ON position is marked on the switch and the fac-

tory settings are also shown in Figure 3.3.

Switch Position 1 — Selects the generator alternator

output frequency and is factory pre-set for 60 Hz.

Switch Position 2 — Selects the type of transfer

switch and is factory pre-set for the prepackaged

transfer switch.

Switch Position 3 — Selects the type of governor

control used and is factory pre-set for stepper motor

control.

Switch Position 4 — Selects the type of fuel being

used and is factory pre-set for natural gas (NG).

Switch Position 5 — Selects the engine displacement

and is factory pre-set for a 2.5 liter (2.5L) engine.

Switch Position 6 — Selects the number of engine

cylinders and is factory pre-set for four cylinders.

Switch Position 7 — Selects the direction of rotation

of the governor stepper motor and is factory pre-set

for CCW rotation (rotation is observed looking at the

stepper shaft as it move from closed throttle to open

throttle).

Switch Position 8 — Selects whether the control is

in the Normal Mode of operation or Test Mode. In the

Normal Mode of operation, pre-determined governor

gains are used and the gain trimpots on the control

board (Gain, Stability, and Differential) are not active

and have no effect on the gains. In Test Mode the gain

trimpots are active and can be adjusted. See Section

3.4.

FOR ST

TRAN

ATTEN

COO

LANT LEVE

COO

LANT TEMPERAT

FLA

HIN

REEN LED = N

TILITY

FLA

HIN

RED LED'

= EXER

ER N

(

IN AUTO MODE ONLY

)

SOLID GREEN LED = SYSTEM READY, UTILITY POWER O

(

SEE OWNER'S MANUAL FOR COMPLETE DETAILS

)

LED INDI

RED LED'

= INDIVID

AL FA

VER

RAN

TEM READ

W BATTER

IL PRE

SSU

VER

PEE

MAN

START

RUN THROUGH THE EXERCISE

LE AND

TIME

EXER

ITI

WIT

H IN "

N" P

ITI

N F

)

PLACE AUTO/OFF/MANUAL SWITC

)

HOLD "SET EXERCISE TIME

ET EXER

ER TIM

. THEN THE

NIT WILL

THE EXER

ER I

ET. ALL

FIVE RED LED'

WILL FLA

H F

THREE

AND RELEA

0653

16 Bryant

Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

4.1 MAINTENANCE PERFORMED BY

AUTHORIZED SERVICE FACILITIES

A. EVERY THREE MONTHS

1. Check battery condition.

2. Inspect and test fuel system.

3. Check transfer switch.

4. Inspect exhaust system.

5. Check engine ignition system.

6. Check fan belts.

B. ONCE EVERY SIX MONTHS

1. Test Engine Safety Devices (low oil pressure, low

coolant level, high coolant temperature).

C. ONCE ANNUALLY

1. Test engine governor; adjust or repair, if needed.

2. Clean, inspect generator.

3. Flush cooling system.

D. FIRST 100 OPERATING HOURS

1. Change engine oil and oil filter. After initial

change, service engine oil and filter at 150 oper-

ating hours or six months, whichever comes first.

2. Retorque cylinder head (see torque specs).

3. Retorque intake and exhaust manifold (see

torque specs).

E. EVERY 500 OPERATING HOURS

1. Service air cleaner.

2. Check starter.

3. Check engine DC alternator.

F. EVERY 800 OPERATING HOURS

1. Retorque cylinder head (see torque specs).

2. Retorque intake and exhaust manifold (see

torque specs).

3. Check engine compression.

4. Check valve clearance.

4.2 EXHAUST MANIFOLD PROCEDURE

1. If necessary, clean gasket surfaces on exhaust

manifold and cylinder head.

2. Install exhaust manifold and exhaust manifold

gasket.

3. Install fasteners.

NOTE:

Exhaust manifold fasteners must be tightened in

two stages.

4. Tighten fasteners to 20-30 N-m (15-22 lb-ft) dur-

ing the first stage.

5. Retighten fasteners to 60-80 N-m (44-59 lb-ft)

during the second stage.

4.3 INTAKE MANIFOLD PROCEDURE

1. Clean and inspect the mounting surfaces of the

intake manifold and the cylinder head. Both sur-

faces must be clean and flat (Figure 4.1).

2. Clean and lightly oil the manifold bolt/stud

threads.

3. Install a new lower intake manifold gasket.

4. Position the lower intake manifold to the cylinder

head.

5. Install retaining bolts/studs finger tight.

6. Tighten all bolts/studs to specifications in the

tightening sequence shown:

• First pass = 7=10 N-m (5-7 lb-ft).

• Final pass = 26-38 N-m (19-28 lb-ft).

Figure 4.1 — Intake Manifold Installation

4.4 CYLINDER HEAD PROCEDURE

1. Position head gasket on the block (Figure 4.2).

2. Position cylinder head to cylinder block.

3. Install 10 cylinder head bolts in numerical

sequence. Tighten to 70 N-m (52 lb-ft) in

sequence. Retighten to 70 N-m (52 lb-ft) in

sequence. Then turn all head bolts an additional

90 - 100 degrees in sequence.

Figure 4.2 — Cylinder Head Installation

Bryant 17

4.5 COOLING SYSTEM

Air intake and outlet openings in the generator com-

partment must be open and unobstructed for contin-

ued proper operation. This includes such obstruc-

tions as high grass, weeds, brush, leaves and snow.

Without sufficient cooling and ventilating air flow, the

engine/generator quickly overheats, which causes it

to shut down. (See the installation diagram.)

The exhaust system parts from this product get

extremely hot and remains hot after shutdown.

High grass, weeds, brush, leaves, etc. must

remain clear of the exhaust. Such materials may

ignite and burn from the heat of the exhaust

system.

4.6 OVERLOAD PROTECTION FOR

ENGINE DC ELECTRICAL SYSTEM

Engine cranking, start up and running are controlled

by a solid state Engine Controller circuit board.

Battery voltage is delivered to that circuit board via a

15 amp fuse. These overcurrent protection devices

will open if the circuit is overloaded.

If a circuit breaker opens or a fuse element

melts, find the cause of the overload before

resetting the circuit breaker or replacing the

fuse.

4.7 CHECKING FLUID LEVELS

4.7.1 CHECK ENGINE OIL

Check engine crankcase oil level (Figure 4.3) at least

every 20 hours of operation, or prior to use.

Figure 4.3 - Oil Dipstick and Oil Fill Cap

• Remove oil dipstick and wipe dry with a clean,

lint-free cloth.

• Install oil dipstick, then remove again.

• Oil should be between FULL and ADD marks.

• If oil level is below the dipstick ADD mark, remove

oil fill cap. Add the recommended oil to bring oil

level up to the FULL mark. DO NOT FILL ABOVE

THE “FULL” MARK. See “Engine Oil Recommen-

dations” for recommended oils.

4.7.2 BATTERY FLUID

Check battery electrolyte fluid based on the

Maintenance Schedule. Fluid should cover separa-

tors in all battery cells. If fluid level is low, add dis-

tilled water to cover tops of separators. DO NOT USE

TAP WATER IN BATTERY.

4.7.3 ENGINE COOLANT

Check coolant level in coolant recovery bottle. See

Specifications.

• Add recommended coolant mixture as necessary.

• Periodically remove radiator pressure cap (only

when engine has cooled down) to make sure the

coolant recovery system is functioning properly.

Coolant should be at bottom of radiator filler neck.

If coolant level is low, inspect gasket in radiator

pressure cap. Replace cap, if necessary. To have

pressure cap tested, contact a dealer. Inspect cool-

ing system and coolant recovery system for leaks.

4.8 MAINTENANCE OWNER/

OPERATOR CAN PERFORM

4.8.1 CHECK ENGINE OIL LEVEL

Refer to “Checking Fluid Levels”.

4.8.2 CHECK BATTERY

• See “Checking Fluid Levels”.

• Check battery cables for condition, tightness, cor-

rosion or damage. Clean, tighten or replace as

necessary.

4.8.3 EXERCISE SYSTEM

Start the generator engine at least once every seven

days and let it run at least 20 minutes. See “Weekly

Exercise Cycle”.

4.8.4 INSPECT COOLING SYSTEM

• Inspect engine cooling system. See “Maintenance

Schedule”.

• Check hoses for damage, deterioration, leaks, etc.

Correct any discrepancies found.

• Check hose clamps for tightness.



Oil Dipstic

Oil

Filter

Oil Fill Cap

Engine

Air Cleaner



Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

18 Bryant

4.8.5 CHECK ENGINE COOLANT LEVEL

See “Checking Fluid Levels”.

4.8.6 PERFORM VISUAL INSPECTION

Complete a thorough visual inspection of the entire

engine-generator monthly. Look for obvious damage,

loose, missing or corroded nuts, bolts and other fas-

teners. Look for fuel, oil or coolant leaks.

4.8.7 INSPECT EXHAUST SYSTEM

Inspect the exhaust system at least once every three

months. Check all exhaust system pipes, mufflers,

clamps, etc. for condition, tightness, leaks, security,

damage.

4.8.8 CHECK FAN BELT

• Inspect fan belts every three months. Replace any

damaged, deteriorated, worn or otherwise defec-

tive belt.

• Check fan belt tension. Thumb pressure, exerted

midway between pulleys, should deflect about 3/8

to 5/8 of an inch. Adjust belt tension as required.

4.8.9 INSPECT ENGINE GOVERNOR

Visually inspect electronic governor.

DANGER: Do not attempt to adjust the gover-

nor. Only qualified service facilities should

adjust the governor. Excessively high operating

speeds are dangerous and increase the risk of

personal injury. Low speeds impose a heavy

load on the engine when adequate engine

power is not available and may shorten engine

life. Correct rated frequency and voltage are

supplied only at the proper governed speed.

Some connected electrical load devices may be

damaged by incorrect frequency and/or volt-

age. Only qualified service technicians should

adjust the governed speed.

4.8.10 CHANGING ENGINE OIL

Refer to maintenance performed by authorized service

facilities for engine oil and filter change frequencies.

Drain the oil while the engine is still warm from run-

ning. This means warm up the engine, shut it down

and drain immediately as follows:

1. Remove OIL DRAIN HOSE from its retaining clip.

2. Loosen and remove OIL DRAIN HOSE CAP. Drain

oil completely into suitable container.

3. When all oil has drained, install and tighten OIL

DRAIN HOSE CAP, and re-install into its retaining

clip.

4. Turn OIL FILTER (Figure 4.1) counterclockwise

and remove. Properly dispose of old filter.

5. Apply light coating of new engine oil to seal of new

oil filter. Install FILTER and tighten by hand only.

DO NOT OVER TIGHTEN.

6. Remove OIL FILL CAP. Add recommended oil (see

SPECIFICATIONS). DO NOT FILL ABOVE THE

DIPSTICK “FULL” MARK. Crankcase oil capacity

is 4.0 U.S. quarts (3.8 liters).

After refilling the crankcase with oil, always

check oil level on dipstick. NEVER OPERATE

ENGINE WITH OIL BELOW THE DIPSTICK “ADD”

MARK.

7. Start engine and check for oil leaks.

4.8.11 CHANGING THE ENGINE AIR CLEANER

To replace the engine air cleaner, (part number

059402), simply remove the air cleaner cover and

replace the air filter making sure it is positioned

properly before reattaching the cover (Figure 4.1).

See the “Service Schedule,” for air cleaner mainte-

nance (Section 4.10).

4.8.12 SPARK PLUGS

Reset the spark plug gap or replace the spark plugs

as necessary (Figure 4.4).

1. Clean the area around the base of the spark plugs

to keep dirt and debris out of the engine. Clean by

scraping or washing using a wire brush and com-

mercial solvent. Do not blast the spark plugs to

clean.

2. Remove the spark plugs and check the condition.

Replace the spark plugs if worn or if reuse is

questionable. See the “Service Schedule,” Section

6, for recommended inspection.

3. Check the spark plug gap using a wire feeler

gauge. Adjust the gap to 1.07-1.17 mm (0.042-

0.046 inch) by carefully bending the ground elec-

trode (Figure 4.2).

Figure 4.4 – Setting the Spark Plug Gap



DANGER



Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

SET PLUG GAP AT 1.07 - 1.17 mm

(0.042 - 0.046 inch)

Bryant 19

4.8.13 COOLANT CHANGE

Every year, have a Bryant dealer drain, flush and

refill the cooling system. See “Specifications” for cool-

ing system recommendations.

4.9 MISCELLANEOUS MAINTENANCE

4.9.1 CLEANING THE GENERATOR

Keep the generator as clean and as dry as possible.

Dirt and moisture that accumulates on internal gen-

erator windings have an adverse effect on insulation

resistance.

Periodically clean generator exterior surfaces. A soft

brush may be used to loosen caked on dirt. Use a

vacuum system or dry, low pressure air to remove

any accumulations of dirt. The generator is housed

inside an all-weather enclosure, clean the enclosure

with a soft, damp cloth or sponge and water.

Once each year have the generator cleaned and

inspected by a dealer. That dealer will use dry, low

pressure air to clean internal windings. Parts inside

the control console should be cleaned and inspected

at this time as well.

Finally, have the insulation resistance of stator and

rotor windings checked. If insulation resistances are

excessively low, the generator may require drying.

4.9.2 BATTERY

All lead-acid storage batteries discharge when not in

use. Refer to specific instructions and warnings that

accompany the battery. If such information is not

available, observe the following precautions when

handling a battery:

• DO NOT use jumper cables and a booster battery

to crank or start the generator engine.

• DO NOT recharge a weak battery while it is

installed in the generator. Remove battery from

generator and recharge in a well-ventilated area,

away from fuel vapors, sparks, heat or flames.

• Battery electrolyte fluid is an extremely caustic

sulfuric solution that can cause severe burns. DO

NOT permit fluid to contact eyes, skin, clothing,

painted surfaces, wiring insulation, etc. If any bat-

tery fluid is spilled, flush the affected area with

clear water immediately.

• Always wear safety glasses, rubber apron and

gloves when handling a battery.

• Batteries give off explosive hydrogen gas while

charging. The gas can form an explosive mixture

around the battery for several hours after charging.

Any spark, heat or flames can ignite the gas and

cause an explosion which can shatter the battery,

causing blindness or other serious injury.

4.9.3 BATTERY MAINTENANCE

The battery should be inspected per Section 4.7,

Scheduled Maintenance. The following procedure

should be followed for inspection:

1. Inspect the battery posts and cables for tightness

and corrosion. Tighten and clean as necessary.

2. Check the battery fluid level of unsealed batteries

and, if necessary, fill with DISTILLED WATER

ONLY. DO NOT USE TAP WATER IN BATTERIES.

3. Have the state of charge and condition checked.

This should be done with an automotive-type bat-

tery hydrometer.

Storage batteries give off explosive hydrogen

gas. This gas can form an explosive mixture

around the battery for several hours after

charging. The slightest spark can ignite the gas

and cause an explosion. Such an explosion can

shatter the battery and cause blindness or

other injury. Any area that houses a storage

battery must be properly ventilated. Do not

allow smoking, open flame, sparks or any spark

producing tools or equipment near the battery.

Battery electrolyte fluid is an extremely corro-

sive sulfuric acid solution that can cause severe

burns. Do not permit fluid to contact eyes, skin,

clothing, painted surfaces, etc. Wear protective

goggles, protective clothing and gloves when

handling a battery. If fluid is spilled, flush the

affected area immediately with clear water.

Do not use any jumper cables or booster bat-

tery to crank and start the generator engine. If

the battery has completely discharged, remove

it from the generator for recharging.

Be sure the AUTO/OFF/MANUAL switch is set to

the OFF position, before connecting the battery

cables. If the switch is set to AUTO or MANUAL,

the generator can crank and start as soon as

the battery cables are connected.

Be sure the utility power supply is turned off,

or sparking may occur at the battery posts as

the cables are attached and cause an explosion.

DANGER



Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

20 Bryant

4.9.4 BATTERY REPLACEMENT

When replacing batteries, use the same number and

the type of battery that follows:

NOTE:

The BCI number should be located directly

on the battery.



Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

BCI Group No. CCA

26 525 @ 0 deg. F

PERIODIC REPLACEMENT PARTS

Part Name Part Number

Oil Filter # 0F4604A

Radiator Cap # 046627

Air Cleaner # 059402

Spark Plug # 0E96180241

Bryant 21

Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

4.10 SCHEDULED MAINTENANCE

Following is a recommended maintenance schedule for small standby and residential generator sets. The estab-

lished intervals in the schedule are the maximum recommended when the unit is used in an average service appli-

cation. They will need to be decreased (performed more frequently) if the unit is used in a severe application. Use

the unit hour meter or calendar time, whichever occurs first, from the previous maintenance interval to determine

the next required maintenance interval.

Service Maintenance Interval Information:

The various service maintenance intervals are designated by interval numbers as follows:

1An early inspection of the generator set to insure it is ready to operate when required and to identify any poten-

tial problem areas.

Performed monthly this requires approximately .5 man-hours per unit to complete.

This inspection may be performed by the end user providing the following safety steps are taken to prevent

the engine from starting automatically without warning:

To prevent injury, perform the following steps in the order indicated before starting any maintenance:

• Disable the generator set from starting and/or connecting to the load by setting the control panel

AUTO/OFF/MANUAL switch to the OFF position.

• Remove the 5 amp and 15 amp control panel fuses.

• Turn off the battery charger (turn OFF utility supply to ATS).

• Remove the negative battery cable.

The battery charger must be turned off BEFORE removing the battery cable to prevent an over current condi-

tion from burning out sensitive control panel components and circuits.

Following all maintenance, reverse these steps to insure the unit is returned to standby setup for normal

operation when required.

2A break-in service inspection of the generator set to insure it is ready to operate and carry the load when

required, and to identify any potential problem areas.

Performed ONLY ONCE following the first three months of operation after purchase of the unit and requires

approximately 2.5 man-hours per unit to complete.

This inspection contains some maintenance tasks which require special tools, equipment, and/or knowledge

to accomplish and should be performed only by a dealer.

3An operational inspection of the generator set to insure it is ready to operate and carry the load when required,

and to identify any potential problem areas.

Performed semi-annually this requires approximately 1.5 man-hours per unit to complete.

This inspection contains some maintenance tasks which require special tools, equipment, and/or knowledge

to accomplish and should be performed only by a dealer.

4A mid-level inspection of the generator set to insure it is ready to operate and carry the load when required, and

to identify any potential problem areas.

Performed annually this requires approximately 4.0 man-hours per unit to complete.

This inspection contains some maintenance tasks which require special tools, equipment, and/or knowledge

to accomplish and should be performed only by a dealer.

22 Bryant

Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

Maintenance Level 1 Level 2 Level 3 Level 4

Tasks Recom- Task Required Task Required Task Task

mended Comp. to be done Comp. to be done Comp. Required Comp.

to be done (Date- 3 months/ (Date- Semi- (Date- to be done (Date-

monthly Initials) Break-in Initials) annually Initials) Annually Initials)

1. Disable the unit from

operating per the first page

warning.

2. Check the engine oil level.

Adjust as necessary.

3. Check the engine coolant

level. Adjust as necessary.

4. Check the engine coolant

thermal protection level.

Correct as necessary.

5. Check the natural gas

delivery system on gas

engine driven units.

Tighten connections as

necessary.

6. Check the air inlets and

outlets for debris. Clean as

necessary.

7. Check the battery

electrolyte level if

accessible. Adjust as

necessary.

8. Check the battery posts,

cables, and charger for

loose connections,

corrosion, and proper

operation. Correct as

necessary.

9. Check the unit wiring for

loose connections,

corrosion, and damage.

Correct as necessary.

10. Check the engine

accessory drive belts for

wear, weather cracking,

and damage. Replace as

necessary.

11. Visually inspect the unit

looking for leaks, wear or

damage, loose connections

or components, and

corrosion. Correct as

necessary.

12. Test the engine and

transfer switch safety

devices. Correct and/or

adjust as necessary.

Bryant 23

Section 4 — Maintenance

Bryant Liquid-cooled 25 kW Generator

Maintenance Level 1 Level 2 Level 3 Level 4

Tasks Recom- Task Required Task Required Task Task

mended Comp. to be done Comp. to be done Comp. Required Comp.

to be done (Date- 3 months/ (Date- Semi- (Date- to be done (Date-

monthly Initials) Break-in Initials) annually Initials) Annually Initials)

13. Initiate an automatic start

and transfer of the unit to

site load and exercise it for

at least 1 hour looking for

leaks, loose connections

or components, and

abnormal operating

conditions. Correct as

necessary.

14. Start and exercise the unit

at full rated load (use a

load bank if the site load is

not enough) for at least 2

hours looking for leaks,

loose connections or

components, and abnormal

operating conditions.

Correct as necessary.

15. Change the engine oil.

16. Replace the engine oil

filter(s).

17. Replace the engine air

filter(s).

18. Replace the engine fuel

filter(s) on diesel engine

driven units and re-prime

the fuel system.

19. Check the engine spark

plugs on gas engine driven

units. Clean and re-gap or

replace as necessary.

20. Perform a 5 minute no-load

operational run of the unit

looking for any post service

problems.

21. Return the unit to standby

setup for operation when

required.

24 Bryant

Section 5 — Troubleshooting

Bryant Liquid-cooled 25 kW Generator

TROUBLESHOOTING POINTS

PROBLEM CAUSE CORRECTION

Engine won’t crank. 1. 15 amp fuse blown. 1. Replace fuse.

2. Loose or corroded or defective 2. Tighten, clean or replace

battery cables. battery cables as necessary.

3. Defective starter contactor. 3. Replace contactor.

4. Defective starter motor. 4. Replace starter motor.

5. Dead or Defective Battery. 5. Remove, change or replace battery.

6. 5 amp fuse blown. 6. Replace fuse.

Engine cranks but won't start 1. Out of fuel. 1. Replenish fuel.

2. Fuel solenoid (FS) is defective 2. Replace solenoid.

3. Open Wire #14A from Engine Control 3. Reconnect wire.

circuit board.

4. Spark plugs defective. 4. Clean, regap or replace plugs.

Engine starts hard, runs rough. 1. Flame arrestor (air cleaner) plugged or 1. Clean or replace as needed.

damaged.

2. Plugged fuel line. 2. Unclog fuel line.

3. Defective spark plugs. 3. Clean, regap or replace plugs.

Engine starts then shuts down. 1. Engine oil level is low. 1. Check oil and add oil as needed.

2. Engine is overheated. 2. Check cooling system for leaks.

3. Defective Low Oil Pressure Switch 3. Replace switch.

4. Defective Coolant Temperature Switch 4. Replace switch.

5. Defective Control Module circuit board. 5. Replace board.

6. Coolant Level is Low. 6. Repair leak - Add coolant.

7. Defective Low Coolant Level Switch 7. Replace Switch.

AUTO/OFF/MANUAL Switch at OFF, 1. Defective AUTO/OFF/MANUAL switch 1. Replace switch.

engine continues to run 2. Open/disconnected wire #15A between 2. Reconnect/close wire.

AUTO/OFF/MANUAL switch and Control

Module circuit board.

3. Defective Control Module circuit board 3. Replace board.

No AC output from generator. 1. Check main line circuit breaker. 1. Reset to ON or CLOSED.

2. Check circuit breaker & fuses. 2. Reset and replace, if necessary.

3. Transfer switch set to NORMAL position 3. Set to GENERATOR position.

4. Generator internal failure. 4. Contact a dealer.

5. Thermal circuit breaker open. 5. Auto-reset - Wait 5 min. and

attempt restart.

NOTE:

Under normal operating conditions, if repair of generator set or replacement of any parts is necessary dur-

ing the warranty period, you must contact a dealer. Failure to have the repair or replacement performed by

a Bryant dealer will result in non-coverage of warranty repair cost.

Bryant 25

Section 6 — Notes

Bryant Liquid-cooled 25 kW Generator

26 Bryant

Section 6 — Notes

Bryant Liquid-cooled 25 kW Generator

Bryant 27

Section 6 — Notes

Bryant Liquid-cooled 25 kW Generator

28 Bryant

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Wiring Diagram — 2.5L Engine — Drawing No. 0F1411-A

Bryant 29

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Wiring Diagram — 2.5L Engine — Drawing No. 0F1411-A

30 Bryant

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Electrical Schematic — 2.5L Engine — Drawing No. 0F1413-A

Bryant 31

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Electrical Schematic — 2.5L Engine — Drawing No. 0F1413-A

32 Bryant

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Wiring Diagram — 2.5L Engine (25kW unit) —Drawing No. 0E9982-C

Bryant 33

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Wiring Diagram — 2.5L Engine (25kW unit) —Drawing No. 0E9982-C

34 Bryant

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Electrical Schematic — 2.5L (25kW unit) — Drawing No. 0E9983-C

Bryant 35

Section 7 - Electrical Data

Bryant Liquid-cooled 25 kW Generator

Electrical Schematic — 2.5L (25kW unit) — Drawing No. 0E9983-C

36 Bryant

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Mounting Base — Drawing No. 0E9964-E

INE

BLOCK

CARRIER

EAR BEARIN

ANEL

ARNE

MOUNT

WIRE

STARTER

TARTER

Bryant 37

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Mounting Base — Drawing No. 0E9964-E

ITEM PART NO. QTY. DESCRIPTION

1 0D9336 3 PANEL BRACKET

2 0E9939 2 CTRL PNL SUPPORT 2.5L FORD

3 0C2454 24 SCREW TH-FRM M6-1 X 16 N WA Z/JS

4 049813 1 NUT HEX M6 X 1.0 G8 YEL CHR

5 022097 1 WASHER LOCK M6-1/4

6 026850 2 WASHER SHAKEPROOF EXT 1/4 STL

7 055414 1 LUG SLDLSS #2-#8 X 17/64 CU

8 022473 1 WASHER FLAT 1/4-M6 ZINC

9 047411 1 SCREW HHC M6-1.0 X 16 G8.8

10 052860 4 NUT FLANGED HEX M12-1.75

11 052251 4 DAMPENER VIBRATION 40 BLUE

12 052257 4 SPACER .49 X .62 X 1.87 PWDR/ZNC

13 052252 4 DAMPENER VIBRATION

14 052259 4 WASHER FLAT M12

15 052891 4 SCREW HHC M12-1.75 X 80 G8.8

16 0536210261 1 ASSY WIRE #0 12.00"

17 074906 1 SCREW HHTT M6-1.0 X 20 BP

18 077483 REF BATT 12VDC 75-AH 26 (NOT SHOWN)

19 0E9941 1 HOLD DOWN BATTERY 2.5L FORD

20 025507 3 WASHER SHAKEPROOF EXT 7/16 STL

21 059980 1 SCREW HHC M10-1.5 X 25 G10.9

22 046526 1 WASHER LOCK M10

23 022131 1 WASHER FLAT 3/8-M10 ZINC

24 021991 1 EARTH STRAP

25 038805J 1 CABLE BATT BLK #1 X 30.00

26 050331 REF BATTERY POST COVER (BLACK)

27 050331A REF BATTERY POST COVER (RED)

28 038804J 1 CABLE BATT RED #1 X 40.50

29 045771 REF NUT HEX M8-1.25 G8 YEL CHR

30 022129 REF WASHER LOCK M8-5/16

31 027482 1 WASHER SHAKEPROOF EXT 5/16 STL

32 075763 1 BOOT BATTERY CABLE

33 0E9748 1 ASSY MTG BASE 2.5L FORD

34 0E9940 1 TRAY BATTERY 2.5L FORD

35 065852 1 SPRING CLIP HOLDER .37-.62

36 024469 1 SCREW HHTT #10-32 X 3/8 CZ

38 Bryant

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Enclosure — Drawing No. 0F4568-B

ITEM #2

E L

TITE

PANEL F

R A

VER

ABL

WELD

NDER R

OOF

ND WIRE

TENER T

E D

R LAT

"Y"

Bryant 39

ITEM PART NO. QTY. DESCRIPTION

1 0E9768 1 ROOF ACO & STD ENCL 2.5L

2 0E9862 1 DUCT DISCHARGE MID 2.5L

3 0E9769 1 SUPPORT RADIATOR 2.5L FORD

4 0D8660 2 BRACE SIDE 1.5L MITSU

5 0A7568 2 DOORWELDMENT 1.5EPS

6 0E9771 1 CORNER POST REAR RH SIDE 2.5L

7 0E9773 1 DOOR REAR ENCL 2.5L FD

8 0E9772 1 BRACE, REAR 2.5L FORD

9 0E9770 1 CORNER POST REAR LH SIDE 2.5L

10 067042 2 LATCH & CAM

11 0C2454 34 SCREW TH-FRM M6-1 X 16 N WA Z/JS

12 033530 3 SCREW PHM #10-32 X 5/8 ZINC

13 051716 3 NUT HEX M5-0.8 G8 YEL CHR

14 022152 3 WASHER LOCK #10

15 0912970064 3 ASSEMBLY BASE-DOOR GROUND WIRE

16 023762 3 WASHER SHAKEPROOF EXT #10 STL

17 0912970063 3 GRD WIRE ASS'Y 99HSB

18 022264 6 WASHER LOCK #8-M4

19 067035 6 SCREW PPHM #8-32 X 5/16

20 022127 1 NUT HEX 1/4-20 STEEL

21 0F4487A 1 ASSEMBLY COVER ACCESS

22 022473 1 WASHER FLAT 1/4 ZINC

23 022097 1 WASHER LOCK M6-1/4

24 0D2023 2 GASKET CLIP-ON SELF GRIPPING (89" LG)

25 0F3390 1 LATCH AND CAM

26 037337 6 NUT HEX JAM 3/8-24 SS

27 0E0072G 2 ACSTC INSLTN 1.5L RR CRNR TOP

28 0E0072J 2 ACSTC INSLTN 1.5L RR CRNR BOTT

29 0E0072L 2 ACSTC INSLTN 1.5L SIDE BRC PNL

30 0E0072M 2 ACSTC INSLTN 1.5L SIDE DR PNL

31 0D2023 1 TRIM VINYL SELF GRIPPING (80" LG)

32 0E0072P 2 ACSTC INSLTN 1.5L SIDE DR PNL

33 0E0072Q 2 ACSTC INSLTN 1.5L RAD SUPPORT

34 0E0072S 1 ACSTC INSLTN 2.5L ROOF

35 0E0072T 2 ACSTC INSLTN 2.5L DUCT L & RH SD

36 0E0072U 1 INSUL ACO 2.5L EXH ROOF PANEL

37 0E0072V 2 ACSTC INSLTN 2.5L DUCT FRNT SD

38 0E0072W 1 ACSTC INSLTN 2.5L REAR DOOR

39 0E0072X 2 ACSTC INSLTN 2.5 RR CRNR PNL S

40 0E9861 1 DUCT DISCHARGE RH SIDE 2.5L

41 0E9860 1 DUCT DISCHARGE LH SIDE 2.5L

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Enclosure — Drawing No. 0F4568-B

40 Bryant

"A"

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Control Panel — Drawing No. 0E9719-E

Bryant 41

ITEM PART NO. QTY. DESCRIPTION

1 0C2267 16 SCREW HHTT M5-0.8 X 12 BP

3 0D5070A 1 ASSY 2A 12V UL BATTERY

CHARGER

4 0D8671 1 HINGE CONTINUOUS 1.5L CTRL PNL

5 0E4494 1 SWITCH ROC DPDT ON-OFF-ON

6 0E6875A 2 RELAY, 12VDC C FORM W/DIODE

7 0E7358 4 SCREW PPPH HI-LO #4-24 X 3/8

8 0E9704 1 ASSY PCB HSB CONTROLLER 2.5L

9 0E9934 1 CTRL PNL BACK & BOTTOM 2.5L

10 0E9935 1 CTRL PNL LH SIDE 2.5L FORD

11 0E9936 1 CTRL PNL RH SIDE 2.5L FORD

12 0E9937 1 CTRL PNL TOP 2.5L FORD

13 0E9938 1 CTRL PNL FRONT 2.5L FORD

14 023897 19 WASHER FLAT #10 ZINC

15 036261 4 RIVET POP .125 X .275 AL

16 054450 1 CIRCT BRK 5.5 X 1 ETA 46-500-P

17 057073 1 JUNCTION BLOCK 3/8-16

18 067680 1 ASSY VOLTAGE REGULATOR 60HZ

19 082573 1 SWITCH ROC DPST 125V SPD

20 0C3910 1 TRANSFORMER 240/16V 1VA & 56VA

21 029673 1 DIO BRIDGE 25A 600V

22 034616 1 FITTING STRAIGHT 3/4

23 0E2514 1 FITTING CONDUIT STR 1-1/2"

24 0F0581 1 BRACKET FUSE HOLDER 2.5L FORD

25 040213 2 PCB SUPPORT SNAP-IN 1/4"

26 0F0558 1 BRACKET PCB SUPPORT 2.5L FORD

27 0F0598 1 DECAL FUSES 2.5L CNTRL PANEL

28 0F0599 1 DECAL TB1 2.5L CONTROL PANEL

29 0F0600 1 DECAL ICT 2.5L CONTROL PANEL

30 054199 1 DECAL DANGER HIGH VOLTAGE

31 049813 1 NUT HEX M6 X 1.0 G8 YEL CHR

32 0F0653 1 DECAL CONTROL HSB 2.5L FORD

33 022097 3 WASHER LOCK M6-1/4

34 0C2212 13 SCREW PHTT M4-0.7 X 16 ZYC

35 022264 20 WASHER LOCK #8-M4

36 0C2265 5 SCREW PHTT M4-0.7 X 12 ZYC

ITEM PART NO. QTY. DESCRIPTION

37 023965 2 SCREW RHM #8-32 X 3/8

38 039782 1 BRKT MTG CB BQ

39 0A2077 1 CB 0125A 2P 240V S BQ2 LL

40 020911 2 SCREW PPHM M5-0.8 X 30 ZINC

41 0A8955 2 SCREW PHM M6-1.0 X 20MM

42 022152 3 WASHER LOCK #10

43 051716 2 NUT HEX M5-0.8 G8 YEL CHR

44 023762 1 WASHER SHAKEPROOF EXT #10

STL

45 033121 1 SCREW HHC #10-32 X 1/2

46 026850 1 WASHER SHAKEPROOF EXT 1/4

STL

47 0912970087 1 ASSY WIRE 14AWG 16" #0 GRN/YEL

48 022158 1 NUT HEX #10-32 STEEL

49 0E7403C 1 FUSE ATO TYPE 15 AMP (BLUE)

50 0E7403A 1 FUSE ATO TYPE 5 AMP (TAN)

51 0F0526 1 HARN CTRL PNL 2.5L FD (NOT

SHOWN)

52 0A2115 2 WASHER NYLON .257

53 022473 2 WASHER FLAT 1/4-M6 ZINC

54 038150 5 WASHER FLAT #8 ZINC

55 0C2428 2 SCREW PHTT #6-32 X 1/2 ZYC

56 022155 2 WASHER LOCK #6

57 * 052619 2 SCREW HHC M5-0.8 X 20 G8.8

58 * 023897 4 WASHER FLAT #10 ZINC

59 * 049226 2 WASHER LOCK M5

60 * 051716 2 NUT HEX M5-0.8 G8 YEL CHR

61 ** 046357 REF BLOCK TERM 20A 6 X 6 X 1100V

62 ** 047822 REF BLOCK TERM 20A 7 X 6 X 1100V

63 ** 0F1467 REF ASSY WIRE FUSE HOLDER

64 ** 0E6881 REF SOCKET RELAY

65 0A9457 1 DECAL NEUTRAL

* NOT SHOWN. HARDWARE FOR ATTACHING WIRES TO I/N 39.

** PART OF I/N 51, P/N 0F0526 CONTROL PANEL HARNESS.

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Control Panel — Drawing No. 0E9719-E

42 Bryant

R HARNE

HSG

ADIAT

CAP

TEPPER

NIT

NLY

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Engine — Drawing No. 0E9918-F

Bryant 43

ITEM PART NO. QTY. DESCRIPTION

1 0E9909 REF ENGINE 2.5L FORD

2 0E9739 1 PULLEY, 2.5L FORD WATER PUMP

3 049814 8 SCREW HHC M10-1.5 X 25 G8.8

4 0F0001 1 CLUTCH, COOLING FAN 2.5L FORD

5 0D3488B 1 SERPENTINE BELT - 40.85" LENGTH

6 0A8584 1 SWITCH,OIL PRESSURE,10PSI,2POL

7 0E0561 1 ASSY WATER LEVEL SENSOR C/E

8 0A6751 1 SW-TMP 245DEG 3/8NPT

9 035579 1 BUSHING REDUCER 1/4 TO 1/8

10 026925 1 PLUG STD PIPE 3/8 STEEL SQ HD

11 0E9611 1 MANIFOLD, INTAKE (MACHINED)

(STEPPER MOTOR)

0E9611A 1 MANIFOLD INTAKE MACH BOSCH32

(BOSCH GOV.) (NOT SHOWN)

12 0E9681 1 GASKET, 2.5L FORD INTAKE MAN.

13 039253 4 SCREW HHC M8-1.25 X 20 G8.8

14 097962 4 SCREW SHC M6-1.0 X 25 G12.9 ZP

15 022145 8 WASHER FLAT 5/16-M8 ZINC

16 022097 11 WASHER LOCK M6-1/4

17 022129 16 WASHER LOCK M8-5/16

18 043107 11 SCREW HHC M8-1.25 X 25 G8.8

19 022131 19 WASHER FLAT 3/8-M10 ZINC

20 046526 22 WASHER LOCK M10

21 052625 2 SCREW SHC M10-1.5 X 35 G12.9

22 0E9708 2 ENGINE FOOT, 2.5L FORD

23 0E9738 1 DIPSTICK, 2.5L FORD

24 0E9929 1 BRACKET, DIPSTICK TUBE

25 0F0230 1 FAN 16" COOLING

26 0E9834 1 HARNESS, 2.5L FORD ENGINE (NOT

SHOWN)

0E9834A 1 HARNESS,2.5L FORD (BOSCH GOV.)

(NOT SHOWN)

27 0D5417 6 SCREW HHC M10-1.0 X 25 G10.9

28 0E5048B 1 FLEXPLATE 2.5L FORD

29 0E9655 1 ADAPT CASTING MACH 2.5L FORD

30 057192 4 SCREW SHC M10-1.5 X 30 G12.9

31 060619 2 SCREW SHC M10-1.50 X 40 G12.9

32 0E8940 1 SPACER FLEXPLATE HSB

33 0E9680 1 GASKET, 2.5L FORD EXHAUST MAN.

34 0E9609 1 MANIFOLD, EXHAUST ( MACHINED)

ITEM PART NO. QTY. DESCRIPTION

35 0E9930 1 HEAT SHIELD, EXHAUST MANIFOLD

36 049821 3 SCREW SHC M8-1.25 X 30 G12.9

37 0E9747 1 STARTER, 12 VOLT

38 043116 5 SCREW HHC M6-1.0 X 12 G8.8

39 022473 6 WASHER FLAT 1/4-M6 ZINC

40 045772 2 NUT HEX M10-1.5 G8 YEL CHR

41 064416 2 SCREW HHC M10-1.5 X 45 G8.8

42 0F0252 1 SPRING BUSHING

43 0E9868 1 ALTERNATOR, D.C

44 0F0035 1 BRKT,D.C. ALTERNATOR(MACHINED)

45 026082 1 SCREW HHC 3/8-16 X 2-1/4 G5

46 0E9928 1 TENSIONER, D.C. ALTERNATOR

47 0F0383 1 HOSE,2.5L FORD COOLANT BY-

PASS

48 057823 2 CLAMP HOSE #10 .56-1.06

49 0E9737 1 LOWER HOSE ADAPTER,2.5L FORD

50 0F0393 1 O-RING 1-3/16 X 1-7/16 X 1/8

51 045757 2 SCREW HHC M6-1.0 X 25 G8.8

52 069860C 1 HOSE OIL DRAIN ASSY 21"

53 048031J REF HOSE CLAMP BAND 5/8"

54 055596 1 BARBED STR 3/8NPT X 3/8

55 077456 1 ADAPTER M12-1.75 3/8NPT

56 052677 1 WASHER NYLON .50 X .87 X .06

57 049813 1 NUT HEX M6 X 1.0 G8 YEL CHR

58 0E9738A 1 DIPSTICK TUBE, 2.5L FORD

59 0F1132 1 COVER, R/H SIDE ENGINE

ADAPTOR

60 0F1133 1 COVER, L/H SIDE ENGINE ADAPTOR

61* 059355 8 SCREW SHC M10-1.50 X 50 G12.9

62 076749 1 TANK COOLANT RECOVERY

63 029032 1 HOSE 9/32 ID (39"LG)

64 0F1433 1 BRACKET,2.5L FORD WATER

BOTTLE

65 070007 3 WASHER FLAT M6 SS

66 070005 3 WASHER LOCK M6 SS

67 080826 3 SCREW HHC M6-1.0 X 12 SS

68 045771 1 NUT HEX M8-1.25 G8 YEL CHR

69 048031C 2 CLAMP HOSE BAND 1/4

* NOTE: TORQUE TO 44 FT/LBS.

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Engine — Drawing No. 0E9918-F

44 Bryant

"OU

T 1"

INE

VER

VALVE

ARB

RET

R A

E1028A

(

I/N 19

)

NVER

"OU

T 2"

.P. VAP

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Fuel System — Drawing No. 0E9980-D

Bryant 45

ITEM PART NO. QTY. DESCRIPTION

1 0E8456 1 BRACKET FUEL REGULATOR

2 075580 1 FLANGE FUEL INLET

3 0E9967 1 ASSY FUEL REG 2.5L FRD N/G-L/P

4 039253 4 SCREW HHC M8-1.25 X 20 G8.8

5 022145 2 WASHER FLAT 5/16 ZINC

6 022129 6 WASHER LOCK M8-5/16

7 045771 2 NUT HEX M8-1.25 G8 YEL CHR

8 * 0F1570 1 BODY CARBURETOR ASSEMBLY

9 0A6344 1 BARBED EL 90 1/8 NPT X 3/8

10 0F3994 REF. PCV VALVE 2.5L FORD

11 0E1056 1 FUEL HOSE ASSM. NAT. GAS/L.P.V.

12 0F0397 1 HOSE CRANKCASE BREATHER

13 0A5547 1 COVER AIR CLEANER

14 048031C 2 CLAMP HOSE BAND 1/4

15 0D1509 1 DECAL INLET PRESSURE

16 * 0E0591 1 ADAPTER CARB. TO AIR CLNR

17 059402 1 FILTER ELEMENT

18 037561 1 NUT WING 1/4-20 NYLK

19 0E1028A 1 CARBURETOR ASSY. 2.5L FORD

20 059401 1 CARBURETOR GASKET

21 * 091526 4 SCREW PPHM M5-0.8 X 12 ZNC

22 * 049226 4 WASHER LOCK M5

23 026307 1 ELBOW 90D STREET 3/4

24 062522 1 STUD TH 1/4-20 X 3 G2 ZNC FULL

25 022127 1 NUT HEX 1/4-20 STEEL

26 022259 2 NUT HEX 5/16-18 STEEL

27 050279 1 DECAL FUEL INLET NG

28 0A6125 2 STUD 5/16-18 X 1.25 F THR

29 0C2454 3 SCREW TH-FRM M6-1 X 16 N WA Z/JS

30* 0E1104 1 GASKET, AIR CLEANER ADAPTER

31* 0E0668 1 O-RING 2-028 1.38 X 1.50 X .06

32* 0E0590A 1 VENTURI 20MM

33* 0C5133 1 0-RING 29.82 X 2.62

34* 0E0665 1 SCREW THROTTLE PIN STOP

35* 0E1108 1 THROTTLE ARM REWORK

36* 033138 1 SCREW HHM #10-32 X 5/8

37* 022152 1 WASHER LOCK #10

38* 0E0645 1 LEVER,THROTTLE STOP

39* 034339 1 BARBED EL 90 3/8 NPT X 5/8

40 059194 1 HOSE 5/8 ID LPG & NG (24" LG)

41 057823 2 CLAMP HOSE #10 .56 - 1.06

42 0F0382 1 HOSE 3/8" 90 DEG 2.5L PVC

* INCLUDED IN ITEM 19 (CARBURETOR ASSY )

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Fuel System — Drawing No. 0E9980-D

46 Bryant

LOC

KTI

LOC

KTI

EAD

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Alternator — Drawing No. 0F5092

Bryant 47

ITEM PART NO. QTY. DESCRIPTION

1 0F1659A 1 ROTOR 390 15KW 1P DIRECT HSB (2.5L FORD)

0F1657A 1 ROTOR 390 20KW 1P DIRECT HSB (2.5L FORD)

0F1655A 1 ROTOR 390 25KW 1P DIRECT HSB (2.5L FORD)

0F5073A 1 ROTOR 390__30AD1 HSB TECUM

2 0F1660A 1 STR 390 15AD HSB (382MM LONG) (2.5L FORD)

0F1658A 1 STR 390 20AD HSB (382MM LONG) (2.5L FORD)

0F1656A 1 STR 390 25AD HSB (382MM LONG) (2.5L FORD)

0F5074A 1 STR-390__30AD1 HSB TECUM

3 0E5706 1 REAR BEARING CARRIER 390/DRCT

4 0E5048 REF FLEXPLATE 3.0L FORD

0E5048B REF FLEXPLATE 2.5L FORD

5 0E6668 1 FLYWHEEL ASSY 3.0L HSB LG GEAR

6 0E6076 1 REVCOR FAN 10.75 X 2 W/PRESS DIS

7 046526 8 WASHER LOCK M10

8 051755 4 SCREW HHC M10-1.5 X 16 G8.8

9 04576100BK 4 STUD M14-2.0 X 490 G5 ZINC (3.0L FORD & 2.5L FORD)

10 043123 4 WASHER LOCK M14

11 051779 4 NUT HEX M14-2.0 G8 YEL CHR

12 0E7587 1 ASSY BRUSH HOLDER 390/HSB

13 023365 1 WASHER SHAKEPROOF INT #8

14 0C3993 4 SCREW HHTT M4-0.7 X 25 BP

15 057192 4 SCREW SHC M10-1.5 X 30 G12.9

16 0A2602 1 WASHER FLAT .688 ID X 3.25 OD

17 042558 1 KEY SQ 3/8 X 1 STEEL

18 0A2601 1 SCREW HHC M16-2.0 X 45 G8.8

19 022264 4 WASHER LOCK #8-M4

20 038150 4 WASHER FLAT #8 ZINC

21 077043F 1 CONDUIT FLEX 1-1/4" (30" LG - 3.0L FORD & 3.9L CHRYSLER)

077043F 1 CONDUIT FLEX 1-1/4" (18" LG - 2.5L FORD)

ROTOR REPLACEMENT PARTS

30 047248 1 BALL BEARING-45 MM

31 070892 1 SLIP RING -MACHINED-

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Alternator — Drawing No. 0F5092

ITEM PART NO. QTY. DESCRIPTION

1 0F2912 1 PIPE MUFFLER OUT

2 0F2869 1 PIPE EXHAUST 2.5L FORD

3 0F2823 1 MUFFLER 2.5L FORD

4 036434 2 BOLT U 5/16-18 X 2.09

5 036449 2 SADDLE 2 INCH

6 022129 6 WASHER LOCK M8-5/16

7 022259 4 NUT HEX 5/16-18 STEEL

8 0E0170A 1 EXHAUST BLANKET 938MM

9 044149 1 GASKET EXHAUST RING

10 0E8816 1 EXHAUST FLANGE 2" PIPE

11 0F2925 2 STRAP MUFFLER

12 0F2926 1 BRACKET, MUFFLER

ITEM PART NO. QTY. DESCRIPTION

13 047411 4 SCREW HHC M6-1.0 X 16 G8.8

14 022097 4 WASHER LOCK M6-1/4

15 022473 8 WASHER FLAT 1/4-M6 ZINC

16 049813 4 NUT HEX M6 X 1.0 G8 YEL CHR

17 039253 2 SCREW HHC M8-1.25 X 20 G8.8

18 045771 2 NUT HEX M8-1.25 G8 YEL CHR

19 0A4010 1 SCREW HHC M8-1.25 X 60 G8.8 FT

20 022145 5 WASHER FLAT 5/16-M8 ZINC

21 022131 2 WASHER FLAT 3/8-M10 ZINC

22 085917 2 WASHER LOCK 3/8 SS

23 0D2611 2 SCREW HHC 3/8-16 X 1-3/4 SS

24 052858 1 NUT TOP LOCK FL M8-1.25

48 Bryant

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Muffler — Drawing No. 0F2930-B

ITEM PART NO. QTY. DESCRIPTION

1 098290 1 ASM MOTOR STEPPER

2 098941A 1 HOUSING GOVERNOR CONNECTOR

3 0F0454 REF HARN GOV 2.5L FORD

4 098942A 1 COVER CONNECTOR HOUSING

5 098225 2 SCREW PFHST #2 X 5/8

6 043146 3 SCREW HHC M6-1.0 X 10 G8.8

7 022097 5 WASHER LOCK M6-1/4

8 0E7358 REF SCREW PPPH HI-LO #4-24 X 3/8

9 098783 1 LEVER STEPPER MOTOR

10 037398 2 NUT LOCK HEX #10-32 NYL INS

11 0E1326 1 ASSY. CARBURETOR LINKAGE ROD

12 0A7106 1 BRACKET STEPPER MOTOR

13 074031 AR LIQUID NEOPRENE

14 029333A 1 TIE WRAP 7.4"X.19" BLK UL

15 022507 2 SCREW HHC 1/4-20 X 1/2 G5

16 022473 2 WASHER FLAT 1/4 ZINC

17 064526 1 SCREW TAP HWH #6-25 X 3/8 ZINC

18 0E1694 1 SPRING,ANTI LASH

ITEM

(

)

NEOPREN

SECURE WIRE HARNES

WITH TIE WRAP A

ARB

RET

R AR

(

REF.

)

(

REF.

)

INTAKE MANIF

ATIN

WIRE HARNE

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Stepper Motor — Drawing No. 0E9979-C

Bryant 49

50 Bryant

ITEM PART NO. QTY. DESCRIPTION

1 0E9769 REF SUPPORT,RADIATOR 2.5L FORD

0F0779 REF SUPPORT RADIATOR 2.5L AL

2 0E9837 1 RADIATOR, 2.5L FORD

3 0F0123 1 VENTURI, 16" FAN 2.5L FORD

4 0F0118 1 GUARD, FAN 2.5L FORD

5 099502 4 CLAMP HOSE #24 B1.06-2.00

6 0C2454 REF. SCREW THF M6-1X16 N WA Z/JS

7 052250 2 TAPE FOAM 1 X 1(17"LG)

8 022097 8 WASHER LOCK M6-1/4

9 022473 12 WASHER FLAT 1/4 ZINC

10 022127 8 NUT HEX 1/4-20 STEEL

11 046627 1 CAP RADIATOR

12 060035 4 SPACER .41 X .75 X .87 ST/ZNC

ITEM PART NO. QTY. DESCRIPTION

14 0F0127 1 HOSE, UPPER RADIATOR 174MM

TAL

15 0E9833 1 HOSE, 2.5L FORD LOWER

RADIATOR

16 035461 1 BARBED STR 1/4NPT X 3/8

17 069860C 1 HOSE OIL DRAIN ASSY 21"

18 0A7275 4 FOAM 1.5 X 1 ADHESIVE BACKING

(21.5" LG)

19 031669 4 BOLT CARR 1/4-20 X 1-3/4 JS500

20 065852 1 SPRING CLIP HOLDER .37-.62

21 0A2111 1 SCREW SWAGE 10-32 X 5/16 Z/YC

24 0C2454 6 SCREW TH-FRM M6-1X16 N WA Z/JS

25 022287 4 SCREW HHC 1/4-20 X 3/4 G5

WATER INLET

Section 8 - Exploded Views and Parts

Bryant Liquid-cooled 25 kW Generator

Radiator — Drawing No. 0E9965-D

Bryant 51

Section 9 — Installation Diagram

Bryant Liquid-cooled 25 kW Generator

Installation Diagram — Drawing No. 0F1020-A

52 Bryant

Section 10 – Warranty

Bryant Liquid-cooled 25 kW Generator

CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS

The California Air Resources Board (CARB) and Generac Power Systems, Inc. (Generac) are pleased to explain the Emission

Control System Warranty on your new engine.*In California, new utility, and lawn and garden equipment engines must be

designed, built and equipped to meet the state’s stringent anti-smog standards. Generac will warrant the emission control

system on your engine for the periods of time listed below provided there has been no abuse, neglect, unapproved modifi-

cation or improper maintenance of your engine.

Your emission control system may include parts such as the carburetor, ignition system and exhaust system. Generac will

repair your engine at no cost to you for diagnosis, replacement parts and labor, should a warrantable condition occur.

MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE:

Emissions control systems on 1995 and later model year engines are warranted for two years as hereinafter noted. If, dur-

ing such warranty period, any emission-related component or system on your engine is found to be defective in materials or

workmanship, repairs or replacement will be performed by a Generac Authorized Warranty Service Facility.

PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES:

As the engine purchaser/owner, you are responsible for the completion of all required maintenance as listed in your factory

supplied Owner’s Manual. For warranty purposes, Generac recommends that you retain all receipts covering maintenance

on your engine. However, Generac cannot deny warranty solely due to the lack of receipts or for your failure to ensure the

completion of all scheduled maintenance.

As the engine purchaser/owner, you should, however, be aware that Generac may deny any and/or all warranty coverage or

responsibility if your engine, or a part/component thereof, has failed due to abuse, neglect , improper maintenance or unap-

proved modifications, or the use of counterfeit and/or “grey market” parts not made, supplied or approved by Generac.

Warranty service can be arranged by contacting Generac Power Systems, Inc..

IMPORTANT NOTE: This warranty statement explains your rights and obligations under the Emission Control System

Warranty (ECS Warranty), which is provided to you by Generac pursuant to California law. See also the “Bryant Two Year

Limited Warranty for Prepackaged Emergency Automatic Standby Generators” which is enclosed herewith on a separate

sheet, also provided to you by Generac. The ECS Warranty applies only to the emission control system of your new engine.

If there is any conflict in terms between the ECS Warranty and the Bryant Warranty, the ECS Warranty shall apply except in

circumstances where the Generac Warranty may provide a longer warranty period. Both the ECS Warranty and the Bryant

Warranty describe important rights and obligations with respect to your new engine.

Warranty service can be performed only by a Generac Authorized Warranty Service Facility. When requesting warranty serv-

ice, evidence must be presented showing the date of the sale to the original purchaser/owner.

To arrange for emissions equipment warranty or if you have any questions regarding your warranty rights and respon-

sibilities, you should contact Generac at the following address:

ATTENTION WARRANTY DEPARTMENT

GENERAC POWER SYSTEMS, INC.

P.O. BOX 297

WHITEWATER, WI 53190

www.generac.com

Part 1

Bryant 53

EMISSION CONTROL SYSTEM WARRANTY

Emission Control System Warranty (ECS Warranty) for 1995 and later model year engines:

(a) Applicability: This warranty shall apply to 1995 and later model year engines. The ECS Warranty Period shall begin on

the date the new engine or equipment is purchased by/delivered to its original, end-use purchaser/owner and shall con-

tinue for 24 consecutive months thereafter.

(b) General Emissions Warranty Coverage: Generac warrants to the original, end-use purchaser/owner of the new engine or

equipment and to each subsequent purchaser/owner that each of its engines is ...

(1) Designed, built and equipped so as to conform with all applicable regulations adopted by the CARB pursuant to its

authority, and

(2) Free from defects in materials and workmanship which, at any time during the ECS Warranty Period, may cause a war-

ranted emissions-related part to fail to be identical in all material respects to the part as described in the engine man-

ufacturer’s application for certification.

(1) Any warranted, emissions-related parts that are not scheduled for replacement as required maintenance in the Owner’s

Manual shall be warranted for the ECS Warranty Period. If any such part fails during the ECS Warranty Period, it shall

be repaired or replaced by Generac according to Subsection (4) below. Any such part repaired or replaced under the

ECS Warranty shall be warranted for the remainder of the ECS Warranty Period.

(2) Any warranted, emissions-related part that is scheduled only for regular inspection as specified in the Owner’s Manual

shall be warranted for the ECS Warranty Period. A statement in such written instructions to the effect of “repair or

replace as necessary” shall not reduce the ECS Warranty Period. Any such part repaired or replaced under the ECS

Warranty shall be warranted for the remainder of the ECS Warranty Period.

(3) Any warranted, emissions-related part that is scheduled for replacement as required maintenance in the Owner’s

Manual shall be warranted for the period of time prior to the first scheduled replacement point for that part. If the part

fails prior to the first scheduled replacement, the part shall be repaired or replaced by Generac according to Subsection

(4) below. Any such emissions-related part repaired or replaced under the ECS Warranty shall be warranted for the

remainder of the ECS Warranty Period prior to the first scheduled replacement point for such emissions-related part.

(4) Repair or replacement of any warranted, emissions-related part under this ECS Warranty shall be performed at no

charge to the owner at a Generac Authorized Warranty Service Dealer.

(5) When the engine is inspected by a Generac Authorized Warranty Service Dealer, the owner shall not be held responsi-

ble for diagnostic costs if the repair is deemed warrantable.

(6) Generac shall be liable for damages to other original engine components or approved modifications proximately caused

by a failure under warranty of any emission-related part covered by the ECS Warranty.

(7) Throughout the ECS Warranty Period, Generac shall maintain a supply of warranted emission-related parts sufficient

to meet the expected demand for such emission-related parts.

(8) Any Generac authorized and approved emission-related replacement part may be used in the performance of any ECS

Warranty maintenance or repairs and will be provided without charge to the owner. Such use shall not reduce Generac

ECS Warranty obligations.

(9) Unapproved, add-on, modified, counterfeit and/or “grey market” parts may not be used to modify or repair a Generac

engine. Such use voids this ECS Warranty and shall be sufficient grounds for disallowing an ECS Warranty claim.

Generac shall not be held liable hereunder for failures of any warranted parts of a Generac engine caused by the use of

such an unapproved, add-on, modified, counterfeit and/or “grey market” part.

EMISSION RELATED PARTS INCLUDE THE FOLLOWING:

*Generac engine types covered by this warranty statement include the following:

1) Prepackaged Standby Generator

2) Auxiliary Power Unit (APU) Generator

3) Standby Generator

Part 2

Section 10 – Warranty

Bryant Liquid-cooled 25 kW Generator

1) Fuel Metering System:

1.2) LPG/Natural Gas carburetion assembly and its internal

components.

a) Fuel controller (if so equipped)

b) Mixer and its gaskets (if so equipped)

c) Carburetor and its gaskets (if so equipped)

d) Primary gas regulator (if so equipped)

e) LP liquid vaporizer (if so equipped)

2) Air Induction System including:

a) Intake pipe/manifold

b) Air cleaner

3) Ignition System including:

a) Spark plug

b) Ignition module

4) Catalytic Muffler Assembly (if so equipped) including:

a) Muffler gasket

b) Exhaust manifold

5) Crankcase Breather Assembly including:

a) Breather connection tube

Section 10 – Warranty

Bryant Liquid-cooled 25 kW Generator

BRYANT "TWO YEAR" LIMITED WARRANTY FOR

"PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS"

For a period of two years from the date of original sale, Bryant warrants that its generator will be free from defects in material and

workmanship for the items and period set forth below. Bryant will, at its option, repair or replace any part which, upon examination,

inspection and testing by a Bryant Dealer, is found to be defective. All transportation costs under the warranty, including return to the

factory, are to be borne and prepaid by the purchaser/owner. This warranty applies only to Bryant prepackaged emergency automatic

standby generators sold and rated for use in "Standby" applications.

WARRANTY SCHEDULE

YEARS ONE AND TWO - 100% (one hundred percent) transferable coverage on Labor and Part(s) listed.

ENGINE - All Components

ALTERNATOR - All Components

TRANSFER SYSTEM - All Components

Steel enclosures are warranted against rusting for the first year of ownership only. Damage caused after receipt of generator is the

responsibility of the owner and is not covered by this warranty. Nicks, scrapes, dents or scratches to the painted enclosure should be

repaired promptly by the owner.

THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING:

• Bryant generators that utilize non-Bryant replacement parts.

• Bryant generators utilizing non-Bryant automatic transfer switches.

• Any Bryant generators used as rental or trailer mounted applications.

• Units used for prime power in place of existing utility power where utility power is present or in place of utility power where

utility power service does not normally exist.

• Costs of normal maintenance, adjustments, installation and start-up.

• Steel enclosures that are rusting due to the improper installation, location in a harsh or saltwater environment or scratched where

integrity of paint applied is compromised.

• Failures caused by any contaminated fuels, oils, coolants or lack of proper fluid amounts.

• Failures due, but not limited to, accident, misuse, abuse, negligence or improper installation. As with all mechanical devices, the

Bryant engines need periodic part(s) service and replacement to perform well.

• Failures caused by any external cause or act of God, such as collision, theft, vandalism, riot or wars, nuclear holocaust, fire,

freezing, lightning, earthquake, windstorm, hail, volcanic eruption, water or flood, tornado or hurricane.

• Damage related to rodent and/or insect infestation.

• Products that are modified or altered in a manner not authorized by Bryant in writing.

• Any incidental, consequential or indirect damages caused by defects in materials or workmanship, or any delay in repair or

replacement of the defective part(s).

• Failure due to misapplication.

• Telephone, cellular phone, facsimile, internet access or other communication expenses.

• Living or travel expenses of person(s) performing service, except as specifically included within the terms of a specific unit warranty

period.

• Expenses related to "customer instruction" or troubleshooting where no manufacturing defect is found.

• Rental equipment used while warranty repairs are being performed.

• Costs incurred for equipment used for removal and/or reinstallation of generator, (i.e.; cranes, hoists, lifts, etc.)

• Overnight freight costs for replacement part(s).

• Overtime labor.

• Starting batteries, fuses, light bulbs and engine fluids.

THIS WARRANTY IS IN PLACE OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED. SPECIFICALLY,

BRYANT MAKES NO OTHER WARRANTIES AS TO THE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

BRYANT 'S ONLY LIABILITY SHALL BE THE REPAIR OR REPLACEMENT OF PART(S) AS STATED ABOVE. IN NO EVENT SHALL

BRYANT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF SUCH DAMAGES ARE A DIRECT

RESULT OF BRYANT 'S NEGLIGENCE. Some states do not allow the exclusion or limitation of incidental or consequential damages,

so the above limitation may not apply to you.

This warranty gives you specific legal rights. You also have other rights from state to state.

Revision (10/01/04)

Part No. 0F4248 Rev. 0 (01/19/05) Printed in U.S.A.

Catalog No. 13AS-PA6 Form No. OM18-3

Bryant Liquid Cooled Prepackaged Standby Generators Aspas1Bbl025 Users Manual

ASPAS1BBL025 to the manual e0ef20ea-287a-4cbd-9b7a-5d19261b6ae1

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