Carrier BS1 Operations Instructions

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

IMPORTANT: The damper blade on factory-supplied vent damper has a 1/2-sq in. hole (approximately 3/4-in. diameter). On boilers equippedwith standing p

At the time of removal of an existing boiler, the following items shall be followed with each appliance remaining connected to the common ventingsyste

VENT DAMPER OPERATIONPROCEDURE 1—AUTOMATIC OPERATION OF VENT DAMPERFor safe, efficient operation, vent damper and all flue product carrying areas of a

The boiler and its individual shutoff valve must be disconnected from gas supply piping system during any pressure testing of gas supply pipingsystem

→ Fig. 12—Wiring Diagram for Intermittent Ignition Boilers with PS-802 Probe-Type Low Water Cut-OffNOTE: If any of the original wire as supplied with

→ Fig. 13—Wiring Diagram for Standing Pilot Boilers with PS-802 Probe-Type Low Water Cut-OffNOTE: If any of the original wire as supplied with this ap

Fig. 14—Wiring Diagrams for Intermittent Ignition Boilers with Float-Type Low Water Cut-OffNOTE: If any of the original wire as supplied with this app

Fig. 15—Wiring Diagrams for Standing Pilot Boilers with Float-Type Low Water Cut-OffNOTE: If any of the original wire as supplied with this appliance

The boiler, when installed, must be electrically grounded in accordance with requirements of the authority having jurisdiction, or in the absenceof su

CONTROLS AND ACCESSORIESPROCEDURE 1—RELIEF VALVEThe relief valve should open automatically if boiler steam pressure exceeds pressure rating of valve (

LOCATING THE BOILER...

B. BEFORE OPERATING, smell all around appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air andwill settle o

4. Remove lower front panel.5. Turn gas control knob clockwise to OFF position. (See Fig. 19.)6. Wait 5 minutes to clear out any gas. Then smell for g

4. Allow boiler to fill until water runs out gauge drain valve, then close gauge drain valve.5. Continue to fill boiler until water reaches indicated

The above is an example of a typical 1-pipe system. For larger systems or other types of systems such as 2-pipe systems or systems with convectorsor f

If cleaning is necessary, repeat skimming and blowdown procedures above. Usually a long skim is sufficient to clean boiler.In more troublesome cases,

3. Remove 2 screws attaching intermediate front panel to left and right side jacket panels.4. Remove draft diverter and intermediate front panel as 1

SERVICE HINTSYou may avoid inconvenience and service calls by checking these points before you call for service.FOR YOUR SAFETYWHAT TO DO IF YOU SMELL

REPAIR PARTSJacket—Section and Base PartsThis is a Repair Parts List—Not a Packing ListKEYNO.DESCRIPTIONPART NO.3 Section 4 Section 5 Section 6 Sectio

REPAIR PARTSGas Burners and Manifold PartsThis is a Repair Parts List—Not a Packing ListKEYNO.DESCRIPTIONPART NO.3 Section 4 Section 5 Section 6 Secti

REPAIR PARTSKEY NO. DESCRIPTION PART NO.1 3/4-in. Relief Valve 157-00-012 3/4-in. Coupling 115-00-013 3/4-in. X 6-1/2-in. Nipple 146-07-0024 Steam Pre

SAFETY CONSIDERATIONSInstalling and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified pers

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A94328SERVICE TRAININGPackaged Service Training programs are an excellent way to increase yourknowledge of the equipment discussed in this manual, inc

© 2003 CAC/BDP 7310 W. Morris St., Indianapolis, IN 46231 imbs1a05—32—Catalog No. 63BS-1A3

BOILER RATINGS AND CAPACITIESThe ratings marked "Net I=B=R Rating" indicate the amount of equivalent direct cast iron radiation each boiler

FRESH AIR FOR COMBUSTIONProvision for combustion and ventilation air must be in accordance with Section 5.3 of NFGC, Air for Combustion and Ventilatio

PROCEDURE 2—BOILER LOCATED IN CONFINED SPACEEXAMPLE 2A: ALL AIR FROM INSIDE THE BUILDINGThe confined space shall be provided with two permanent openin

3. This boiler is equipped with two 2-1/2-in. supply connections and two 2-1/2-in. return connections, 1 each on both the left and right sidesof boile

14. For pumped return systems, follow condensate pump or boiler feed pump manufacturer’s instructions for proper installation and hookup.15. In connec

WRONG WAYMISSING TEE FOR SKIMMINGWRONG WAYTAKE OFFS MUST BE BETWEEN RISER & EQUALIZERWRONG WAYSWING JOINTS ARE MISSINGWRONG WAYDO NOT BULLHEAD,USE