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W415-0682 / D / 02.06.12
1.4.2 POWER VENT INSTALLATION
23.6
A.
Stretch the inner
fl
ex pipe to the required length taking
into account the additional length needed for the
fi
n-
ished wall surface. Slip the vent pipe a minimum of 3”
over the inner sleeve of the terminal and secure with 3
#8 screws. Apply a heavy bead of the high temperature
sealant W573-0007 Mill Pac (not supplied).
B.
Using the outer
fl
ex pipe, slide over the outer combus-
tion air sleeve of the terminal and secure with 3 #8
screws. Seal using high temperature sealant W573-
0002 (not supplied).
C.
Apply a bead of caulking (not supplied) to the framed
opening and secure the terminal. Ensure the arrows
stamped into the frame assembly are pointing upwards.
NOTE: For fi restop spacer installation instructions,
see PVA kit or the appliance Installation Manual.
D.
Route venting through framed opening and
fi
restop spacer to the
appliance.
E.
The terminal mounting plate may be recessed into the exterior
wall or siding no greater than the depth of its return
fl
ange.
F.
If more vent pipe needs to be used to reach the appliance, couple
them together as illustrated. The vent system must be supported
approximately every 3 feet for both vertical and horizontal runs.
Use noncombustible strapping to maintain the minimum clearance
to combustibles.
G.
Install the reducer (if required) or vent and properly secure and
seal to the unit using high temperature sealant
W573-0007 Mill Pac (not supplied).
HI-TEMP
SEALANT
#8 X 1/2” SELF DRILLING
SCREWS & WASHERS
INNER COUPLER
OUTER COUPLER
OUTER
FLEX PIPE
INNER
FLEX PIPE
OUTER
FLEX PIPE
TERMINAL
CAULKING
FIRESTOP
SPACER
#10 X 2”
SCREWS
HIGH
TEMPERATURE
SEALANT
RETURN
FLANGE
1.4.3 INITIAL FIRING PROCEDURES
!
WARNING
ALWAYS LIGHT THE PILOT WHETHER FOR THE FIRST TIME OR IF THE GAS SUPPLY HAS RUN OUT
WITH THE GLASS DOOR OPENED OR REMOVED. PURGE SHOULD BE PERFORMED BY A QUALI-
FIED SERVICE TECHNICIAN. ASSURE THAT A CONTINUOUS GAS FLOW IS AT THE BURNER BE-
FORE CLOSING THE DOOR. ENSURE ADEQUATE VENTILATION.
In some instances the system may not light pilot/burner with the door open/removed. Partially blocking the
exhaust
fl
ue collar will allow the safety pressure switch to activate and allow gas
fl
ow to the pilot during the
initial test
fi
ring.
