Gas Connection - Carrier BW9 Series Installation Instructions Manual

COMBUSTION AIR
ROOF/BOOT
FLASHING
(FIELD
SUPPLIED)
NOTE: SUPPORT MUST BE FIELD INSTALLED
TO SECURE TERMINATION KIT TO STRUCTURE
Fig. 12 --- Concentric Vent Roof Installation
3 INCH INTAKE AND
EXHAUST TERMINATIONS
INSTALL FIELD SUPPLIED
2˝ BY 3˝ TRANSITION IN
THE VERTICAL POSITION ONLY
5˝
EXHAUST TEE
(FURNISHED)
Fig. 13 --- Combustion Air and Vent Piping
MAINTAIN 12 IN.
VENT
(18 IN FOR CANADA)
MINIMUM CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL. MAXIMUM OF
24 IN. ABOVE ROOF
SUPPORT
(FIELD
SUPPLIED)
ELBOW
(FIELD
SUPPLIED)
COMBUSTION AIR
VENT
A04058
2˝ (50.8MM) CPVC COUPLING
(FURNISHED)
2˝ (50.8MM) CPVC VENT PIPING
(FURNISHED & REQUIRED)
2˝ (50.8MM) COMBUSTION AIR
INTAKE PIPING
NOT IN
HORIZONAL
SECTION
A04177
Fig. 14 --- Gas Piping
INSTALL YOUR THERMOSTAT
The thermostat location has an important effect on the operation
of your boiler system. BE SURE TO FOLLOW THE
INSTRUCTIONS INCLUDED WITH YOUR THERMOSTAT.
Locate the thermostat about five feet above the floor on an inside
wall. It may be mounted directly on the wall or on a vertically
mounted outlet box. It should be sensing average room
temperature. Avoid the following:
DEAD SPOTS COLD SPOTS
Behind doors Concealed
pipes or ducts
Corners and Stairwells ---
alcoves drafts
Unheated
rooms on oth-
er side of wall
Set heat anticipator at 0.7 amps. Connect 24 volt thermostat leads
to the # (2) yellow wires located in service switch junction box,
located on outer jacket of boiler. See Fig. 15 for service switch
junction box and thermostat field wiring connections.
CONNECT CIRCULATOR PUMP WIRING
See Fig. 15 for service switch junction box and circulator pump
field wiring connections. If the two 120 volt circulator wire
terminals inside the junction box are not used, leave the two wire
nuts to prevent the short circuit.
CAUTION
!
UNIT OPERATION HAZARD
Failure to follow this caution may result in improper unit
operation.
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.

GAS CONNECTION

12
HOT SPOTS
Concealed
Lamps
pipes
Fireplace Direct
sunlight
TV sets
Kitchens
Radios
A04061