Carrier BW9 Series Installation Instructions Manual

Also see for BW9 Series: User's information manual User manual Operation and maintenance guide

Contents

12VENTCOMBUSTION AIRVENTNOTE: SUPPORT MUST BE FIELD INSTALLEDTO SECURE TERMINATION KIT TO STRUCTURECOMBUSTION AIRELBOW(FIELDSUPPLIED)SUPPORT(FIELDSUPPLIED)MAINTAIN 12 IN.(18 IN FOR CANADA)MINIMUM CLEARANCEABOVE HIGHESTANTICIPATED SNOWLEVEL. MAXIMUM OF24 IN. ABOVE ROOFROOF/BOOTFLASHING(FIELDSUPPLIED)A04058Fig. 12 --- Concentric Vent Roof Installation5˝3 INCH INTAKE ANDEXHAUST TERMINATIONSEXHAUST TEE(FURNISHED)2˝ (50.8MM) COMBUSTION AIRINTAKE PIPING2˝ (50.8MM) CPVC COUPLING(FURNISHED)2˝ (50.8MM) CPVC VENT PIPING(FURNISHED & REQUIRED)INSTALL FIELD SUPPLIED2˝ BY 3˝ TRANSITION INTHE VERTICAL POSITION ONLYNOT INHORIZONALSECTIONA04177Fig. 13 --- Combustion Air and Vent PipingINSTALL YOUR THERMOSTATThe thermostat location has an important effect on the operationof your boiler system. BE SURE TO FOLLOW THEINSTRUCTIONS INCLUDED WITH YOUR THERMOSTAT.Locate the thermostat about five feet above the floor on an insidewall. It may be mounted directly on the wall or on a verticallymounted outlet box. It should be sensing average roomtemperature. Avoid the following:DEAD SPOTS COLD SPOTS HOT SPOTSBehind doors Concealedpipes or ductsConcealedpipes LampsCorners andalcovesStairwells ---draftsFireplace DirectsunlightUnheatedrooms on oth-er side of wallTV setsKitchensRadiosSet heat anticipator at 0.7 amps. Connect 24 volt thermostat leadsto the # (2) yellow wires located in service switch junction box,located on outer jacket of boiler. See Fig. 15 for service switchjunction box and thermostat field wiring connections.CONNECT CIRCULATOR PUMP WIRINGSee Fig. 15 for service switch junction box and circulator pumpfield wiring connections. If the two 120 volt circulator wireterminals inside the junction box are not used, leave the two wirenuts to prevent the short circuit.UNIT OPERATION HAZARDFailure to follow this caution may result in improper unitoperation.Label all wires prior to disconnection when servicingcontrols. Wiring errors can cause improper and dangerousoperation. Verify proper operation after servicing.CAUTION!GAS CONNECTIONA04061Fig. 14 --- Gas Piping