All installations and services must be performed by qualified service personnel.
20
A. FAN & LIMIT LOCATION WITH H-COIL:
The fan & limit control should be mounted between the H-coil cabinet and furnace. For distances from top of plenum
and furnace, see chart above.
IMPORTANT:
Do not mount fan/limit in H-coil cabinet.
O. WIRING
All wiring must conform to the provisions of local codes or in the absence of these codes with the provisions of the
National Electrical Code, ANSI/NFPA70 (Latest Edition).
The following items are guidelines to complete the wiring portion of the installations.
1. Install the room thermostat according to instructions provided with thermostat. Set the anticipator to .8 amps.
2. The furnace must be grounded in accordance with local codes and with the National Electrical Code,
ANSI/NFPA70 (Latest Edition).
WARNING:
TURN OFF THE ELECTRICAL POWER to the furnace before attempting to change blower speed
wiring.
WARNING:
The power gas burner has its own transformer and no other electrical equipment should be operated
from this transformer. If an electric vent damper is used, a separate transformer and relay must be installed.
Thermally actuated vent dampers cannot be used with this power burner because the damper must be in the open
position before the burner ignites.
For information on the electrical internal workings of the burners itself and the procedure for "initial start-up" and
"adjustment" of the power burner, reference power burner manufacturer's instructions.
All wiring must perform to provisions of the National Electrical Code ANSI/NFPA70 (Latest Edition). Wiring
between the furnace and devices that are field installed shall conform to temperature limitations for type T wire (35
C rise) and Local Ordinances. If any of the original wire supplied with the unit needs to be replaced, 105°C
thermoplastic or its equivalent, must be used. The power supply to the furnace is to be on an individual electrical
circuit with properly sized over-current protection.
Summary of Contents for PGL20-180
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