Daikin DC80SN - Furnace Startup Procedure

10
If it is necessary for the installer to supply additional line
voltage wiring to the inside of the furnace, the wiring must
conform to all local codes, and have a minimum temperature
rating of 105°C. All line voltage wire splices must be made
inside the furnace junction box.
The integrated control module humidier terminal (HUM
H) is energized with 115 volts whenever the induced draft
blower is energized. The integrated control module electron-
ic air cleaner terminal (EAC H) is energized with 115 volts
whenever the circulator blower is energized. This terminal
can also be used to provide 115 volt power to a humidier
transformer. The remaining primary transformer wire would
be connected to the Line N on the control board.


-


115 VAC EAC
115 VAC HUM
W R G C Y


The furnace integrated control module is equipped with a low
voltage terminal for providing power to an optional eld-sup-
plied 24 volt humidier. The 24V HUM terminal is energized
any time the draft inducer is powered. See connection dia-
gram below.
-
       
      -
        -
        


24 VOLT HUM. &
HUMIDISTAT
W R G C Y
24V HUM Terminal is
energized when pressure
switch is closed


1. Close the manual gas shuto󰀨 valve external to the
furnace.
2. Turn o󰀨 the electrical power to the furnace.
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.
-


5. Move the furnace gas valve manual control to the
OFF position.
6. Wait ve minutes then smell for gas. Be sure check
near the oor as some types of gas are heavier than
air.
7. If you smell gas after ve minutes, immediately follow
the safety instructions in the Safety Considerations
on page 2 of this manual. If you do not smell gas af-
ter ve minutes, move the furnace gas valve manual
control to the ON position.
8. Replace the burner compartment door.
9. Open the manual gas shuto󰀨 valve external to the
furnace.
10. Turn on the electrical power to the furnace.
11. Adjust the thermostat to a setting above room tem-
perature.
12. After the burners are lit, set the thermostat to desired
temperature.