Electrical Wiring - ICP T8DNL100F14B1 Installation Instructions Manual

8. Electrical Wiring
ELECTRICALSHOCK HAZARD.
Failure to follow safety warnings exactly could
result in death or personal injury.
Turn OFF electrical power at fuse box or service
panel before making any electrical connections and
ensure a proper ground connection is made before
connecting line voltage.
7. Position all wires away from sharp edges and moving parts.
Do not pinch J-box or other wires when reinstalling blower
compartment door.
Thermostat
Thermostat location has an important effect on the operation of the
furnace. Follow instructions included with thermostat for correct
mounting and wiring.
Low voltage connections to furnace must be made on terminal
board of furnace control. (See Figure 11)
Power Supply Wiring
The furnace MUST be electrically wired and grounded in accor-
dance with local codes, or in the absence of local codes, with the
National Electrical Code (NEC), ANSI/NFPA 70-2002 in the U.S.,
or the Canadian Electrical Code (CEC), CSA C22.1 in Canada.
The power supply to the furnace connections must be between
104 VAC and 127 VAC during furnace operation for acceptable
performance.
Field wiring connections must be made inside the furnace connec-
tion box. A suitable strain relief should be used at the point the
wires exit the furnace casing.
Copper conductors shall be used. Line voltage wires should
conform to temperature limitation of 63 ° F (35 ° C) rise. Wire and
circuit breaker sizing shall be based on the ampacity of the furnace
electrical components plus the amps for all installed accessories
(1.0 amps toni for EAC and HUM). Ampacity can be determined by
using the NEC or CEC.
NOTE: Furnace will not have normal operation is line polarity is re-
versed. Check ALL field and control connections prior to opera-
tion.
If cooling is used, the Y from the thermostat must be connected to
the control board Y to energize cooling blower speed.
Set thermostat heat anticipator in accordance with the Technical
Support Manual.
Heat anticipator setting will need to be measured if 24VAC humidi-
fier is installed. Measure currentin series from R to W at thether-
mostat. Be sure 24VAC humidifier is wired up to control. Allow
furnace to operate for 2 minutes before recording the AC amper-
age reading. Set anticipator on thermostat to recorded value.
Optional Equipment
All wiring from furnace to optional equipment MUST conform to lo-
cal codes or, in the absence of local codes, the applicable national
codes. Install wiring in accordance with manufacturer's instruc-
tions.
Humidifier/Electronic Air Cleaner
The furnace is wired for humidifier and/or electronic air cleaner
connection.
Furnace must be installed so the electrical components are pro-
tected from water and connected to its own separate circuit.
J- Box Relocation
The J-box is installed on left side of casing. An alternate J-box
location on right side can be used.
1. Remove bag containing two hole plugs and two self-tapping
screws from loose parts bag in blower compartment.
2. Remove and discard two screws holding J-box to casing.
3. Move large hole plug from right to left J-box location.
4. Move J-box to alternate location and attach using two self-
tapping screws from bag.
5. A wire tie may need to be cut for additional wire length.
6. Apply two hole plugs from bag at left J-box location.
REDUCED FURNACE LIFEHAZARD
Failure to follow caution instructions may result in
reduced furnace life.
Do NOT exceed 115V/1.0 amp. maximum current
load for both the EAC terminal and the HUM
terminal combined.
HUMIDIFIER - The HUM (115VAC) is energized when the
pressure switch closes on a call for heat. The HUM is ener-
gized when the inducer is energized.
ELECTRONIC AIR CLEANER - EAC is energized when there
is a blower speed call, except is NOT energized when blower
operates in the hard-wired continuous fan mode.
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