FLUE DAMPER
Flue Damper Installation
For Models equipped with a flue damper, the following instructions must be followed. It is recommended to leave a minimum 24” clearance from the actuator side of the flue damper for service access.
Step 1:
Place flue damper on top pan into flue collector. The rail support must be screwed to the top pan. The three
Step 2:
Install the draft hood which is supplied with the heater in the carton to the heater top. Fasten the draft hood with the four sheet metal screws supplied.
Step 3:
Remove junction box cover plugs. Remove flue damper cover. The wiring harness provided plugs into the four plug female molex con- nector (use strain relief connector provided). Molex plugs mate together one way only.
To manually set the damper in the open position, see diagram below.
NOTE: THE FLUE DAMPER MUST BE IN THE OPEN POSITION WHEN APPLIANCE, PILOT AND OR MAIN BURNERS ARE ON. THIS SHOULD BE CHECKED BY THE INSTALLER BEFORE LEAVING.
DAMPER SHAFT POSITION
CLOSEDOPEN
“OPEN” POSITION
CLOSEDOPEN
“CLOSED” POSITION
Flue Damper Venting
The vent pipe (flue pipe) must be installed without restriction or reduction in size. Slope the horizontal run upwards to the chimney at least 1/4” per foot. Fasten all joints with sheet metal screws. (See Figure 4)
Venting must be inspected every three months for blockage and problems due to age of the vent piping.
Damper Position Indicator
The damper position indicator can be found on the flue collar of the flue damper. (See Figure 4).
Heater Wiring
Follow local codes for all electrical work. To reduce risk of shock or possible electrocution, the heater must be electrical- ly grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI / NFPA 70.
If any of the original wiring must be replaced use only type 105oC thermoplastic or equivalent.
Figure 4
MOUNTING SCREWS (4) | DAMPER |
| POSITION |
| INDICATOR |
VENT DAMPER
HOT
COLD
JUNCTION BOX
JUNCTION BOX COVER
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