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NOTE:

Read the entire instruction manual before starting the installation. These instructions must be affixed on or adjacent to the boiler.

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Index

Page

SAFETY CONSIDERATIONS.....................................................................................................................................................................................2
INTRODUCTION..........................................................................................................................................................................................................3
BOILER RATINGS AND CAPACITIES.................................................................................................................................................................3-4
LOCATING THE BOILER .......................................................................................................................................................................................4-5
FRESH AIR FOR COMBUSTION...........................................................................................................................................................................5-6

Boiler Located in Unconfined Space.......................................................................................................................................................................5
Boiler Located in Confined Space .......................................................................................................................................................................5-6

INSTALLATION—SYSTEM PIPING .....................................................................................................................................................................6-7

For Use with Cooling Units.....................................................................................................................................................................................7
Low Design Water Temperature Systems (Below 140°F) .....................................................................................................................................7

®

CANADIAN GAS ASSOCIATION

A PP R O VED

R

ama

ASME

®

A95465

MODEL BW3

Installation, Start-Up, and Operating Instructions

BW3

Series B

Gas-Fired
Induced-Draft Hot Water Boilers
Sizes 42,500 through 225,000

Form:

IM-BW3A-05

Cancels:

IM-BW3A-04

Printed in U.S.A.

8-99

Catalog No.

63BW-3A1

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Содержание BW3

Страница 1: ...ER 4 5 FRESH AIR FOR COMBUSTION 5 6 Boiler Located in Unconfined Space 5 Boiler Located in Confined Space 5 6 INSTALLATION SYSTEM PIPING 6 7 For Use with Cooling Units 7 Low Design Water Temperature Systems Below 140 F 7 CANADIAN GAS ASSOCIATION APPROVED R ama ASME A95465 MODEL BW3 Installation Start Up and Operating Instructions BW3 Series B Gas Fired Induced Draft Hot Water Boilers Sizes 42 500 ...

Страница 2: ...3 SAFETY CONSIDERATIONS Installing and servicing heating equipment can be hazardous due to gas and electrical components Only trained and qualified personnel should install repair or service heating equipment Untrained personnel can perform basic maintenance functions such as maintaining water level All other operations must be performed by trained service personnel When working on heating equipme...

Страница 3: ...ates and the NSCNGPIC in Canada The following steps are all necessary for proper installation and safe operation of boiler 1 LOCATING THE BOILER 2 FRESH AIR FOR COMBUSTION 3 INSTALLATION SYSTEM PIPING 4 CHIMNEY AND VENT PIPE CONNECTION 5 GAS SUPPLY PIPING 6 ELECTRICAL WIRING 7 CHECKING AND ADJUSTING WARNING Keep boiler area clean and free from combustible materials gasoline and other flammable vap...

Страница 4: ...own on the unit An 18 inch clearance should be maintained on any side where passage is required to access another side for cleaning servicing inspecting or replacement of any part that may need attention An 18 inch clearance is recommended on the control side for servicing 6 Determine boiler room size Rooms that are large in comparison with the size of boiler are defined as rooms having a volume e...

Страница 5: ...oxygen to supply the burner for a short time Outside air must enter the house to replace the oxygen used by the burner Study the following examples to determine your fresh air requirements CAUTION Air for combustion must not be contaminated by halogen compounds which include fluoride chloride bromide and iodide These elements are found in aerosol sprays detergents bleaches cleaning solvents salts ...

Страница 6: ...oors through vertical ducts each opening shall have a minimum free area of 1 sq in per 4000 Btu per hour of total input rating of all equipment in the enclosure See Table 3A b Where communicating with the outdoors through horizontal ducts each opening shall have a minimum free area of 1 sq in per 2000 Btu per hour of total input rating of all equipment in the enclosure See Table 3B 2 One permanent...

Страница 7: ... they may be exposed to refrigerated air circulation the piping system shall be equipped with flow control valves or other automatic means to prevent gravity circulation of boiler water during cooling cycles PROCEDURE 2 LOW DESIGN WATER TEMPERATURE SYSTEMS BELOW 140 F If boiler is to be used in a heating system where design water temperatures below 140 F are desired for example radiant floor heati...

Страница 8: ...es in either the NFGC or NSCNGPIC for specific requirements of multiple appliance venting 8 If boiler is the only appliance connected to vent Type B vent pipe is recommended for vent connector 9 Slope pipe up from boiler to chimney not less than 1 4 in per ft 10 End of vent pipe must be flush with inside face of chimney flue Use a sealed in thimble for chimney connection 11 The sections of vent pi...

Страница 9: ...lace in operation the appliance being inspected Follow the lighting instructions Adjust thermostat so appliance will operate continuously 5 Test for spillage at the draft hood relief opening after 5 minutes of main burner operation Use the flame of a match or candle or smoke from a cigarette cigar or pipe 6 After it has been determined that each appliance remaining connected to the common venting ...

Страница 10: ...vent pipe over increaser fitting When joining pieces of single wall galvanized vent pipe a substantial bead of silicone should be used at the joint to insure a leak proof connection GAS SUPPLY PIPING PROCEDURE 1 CHECKING GAS SUPPLY The gas pipe to boiler must be the correct size for length of run and for total Btuh input of all gas utilization equipment connected to it See Table 5 for proper size ...

Страница 11: ...n cause improper and dangerous operation Verify proper operation after servicing Run a separate 120 v circuit from a separate overcurrent protective device in electrical service entrance panel This should be a 15 amp circuit Locate a shutoff switch at boiler It must be turned off during any maintenance Connect 120 v power supply to aquastat terminals L1 HOT and L2 The boiler when installed must be...

Страница 12: ... 24V GND 120 V PRIMARY 120 60 1 POWER SUPPLY HOT NEUT 1K 1K2 1K1 1 2 3 4 5 6 9 R B W B BT B W G W B BT B B PV TO PILOT VR8204A VR8304M GAS VALVE PRESSURE SWITCH CIRCULATOR AT 140C TRANSFORMER INTERMITTENT PILOT CONTROL S8600F NATURAL GAS S8600M NATURAL OR PROPANE GAS DRAFT INDUCER 24V THERMOSTAT L8148A AQUASTAT 120 60 1 POWER SUPPLY POWER SUPPLY OVERCURRENT PROTECTED DISCONNECT NEUT HOT FLAME ROLL...

Страница 13: ...his air would cause gurgling in pipes and inefficient circulation in radiators if left in system It is possible for a tank to become water logged filled with water It can also become overfilled with air This can happen after filling system with new water Fittings are provided on tank and in line to tank for bleeding off excess water or air When installing this tank the following are important 1 Ta...

Страница 14: ...OPERATES The entire heating system boiler piping and radiation units is filled with water As water in boiler is heated it is pumped from top of boiler through supply main to radiation units The cooler water in them flows back through return main to boiler This provides positive and rapid response to thermostat PROCEDURE 2 FILLING SYSTEM WITH WATER To fill 1 Close air vents on all radiation units O...

Страница 15: ...power to appliance 4 This appliance is equipped with an ignition device which automatically lights burner Do NOT try to light burner by hand 5 Remove burner access panel 6 Turn gas control knob clockwise to OFF position See Fig 8 WARNING Wait 5 minutes to allow any gas in the combustion chamber to vent If you then smell gas in appliance area or near the floor do not touch any electrical switch do ...

Страница 16: ...URE 5 THERMOSTAT HEAT ANTICIPATOR ADJUSTMENT Instructions for final adjustment of thermostat are packaged with thermostat Set heat anticipator at 0 2 Check thermostat operation When set above temperature indicated on thermometer boiler burners should ignite Make certain thermostat shuts boiler off when room temperature reaches selected setting and starts boiler operating when room temperature fall...

Страница 17: ...mal height in tank if automatic fill valve is installed otherwise manually refill system PROCEDURE 4 BOILER FLUE PASSAGES Under normal operating conditions with burners properly adjusted it should not be necessary to clean boiler flue gas passages However to assure trouble free operation we recommend that flue passages burner adjustment and operation of controls be checked ONCE EACH YEAR by a comp...

Страница 18: ...o lift off the burner burner is getting too much air Contact your service technician No electric power to boiler Check overcurrent protection Check to be sure electric power supply circuit is on Controls out of adjustment Reset according to instructions Radiators not heating Open radiator vents to vent excess air Check flow control valve if used It may be in closed position Circulator pump not run...

Страница 19: ...ube 146 15 005 146 15 005 146 15 005 146 15 005 146 15 006 146 15 006 3 10 32 X 3 16 in Slotted Hex Head Screw 146 95 301 146 95 301 146 95 301 146 95 301 146 95 301 146 95 301 4 Gas Manifold 146 16 042 146 16 043 146 16 044 146 16 045 146 16 024 146 16 025 5 Orifice Natural Gas 146 15 030 146 15 031 146 15 031 146 15 031 146 15 035 146 15 035 6 Main Burner Less Pilot Bracket 146 15 532 146 15 532...

Страница 20: ...1 146 16 022 146 16 023 146 16 024 146 16 025 5 Orifice Propane Gas 146 15 036 146 15 036 146 15 036 146 15 036 146 15 036 146 15 036 6 Main Burner Less Pilot Bracket 146 15 532 146 15 532 146 15 532 146 15 532 146 15 532 6A Main Burner with Pilot Bracket 146 15 531 146 15 531 146 15 531 146 15 531 146 15 531 146 15 531 7 Pilot Burner with Orifice Propane Gas 146 62 093 146 62 094 146 62 094 146 6...

Страница 21: ...4 730 00 1035 730 00 1036 730 00 1037 10 1 4 in Tie Rod 2 Required 146 05 008 146 05 002 146 05 002 146 05 051 146 05 053 146 05 005 11 Nut and Washer 146 95 041 146 95 041 146 95 041 146 95 041 146 95 041 146 95 041 12 Section Left End 410 01 019 410 01 019 410 01 019 410 01 019 410 01 019 410 01 019 13 Section Intermediate 410 01 018 410 01 018 410 01 018 410 01 018 410 01 018 14 Jacket Top Pane...

Страница 22: ...ermittent Pilot Control S8600M 146 62 071 10 Induced Draft Blower and Gasket 433 00 511 11 Pressure Switch 2 3 4 5 Section 146 55 006 6 7 Section 146 55 005 Rubber Tube Blower to Pressure Switch 146 29 003 Rollout Switch 146 29 002 1 1 4 in X 3 4 in Bushing 146 93 006 Taco Flange Set 146 26 049 Grundfos Flange Set 146 26 050 AT 140C 24 v Transformer 146 62 080 1 4 in Close Nipple 146 07 031 1 4 in...

Страница 23: ...roduct theory and skills programs is available using popular video based formats and materials All include video and or slides plus companion book Classroom Service Training plus hands on the products in our labs can mean increased confidence that really pays dividends in faster troubleshooting fewer callbacks Course descriptions and schedules are in our catalog CALL FOR FREE CATALOG 1 800 962 921...

Страница 24: ... 1999 CAC BDP P O Box 70 Indianapolis IN 46206 imbw3a05 24 Catalog No 63BW 3A1 ...

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