Table of Contents
Advertisement
Propane Gas Sizing
WIRING
NOTE: All wiring should be made in accordance with the
National Electrical Code.
Consult your local Power Company to determine the
availability of sufficient power to operate the unit. Check
the voltage, frequency, and phase at the power supply
to ensure it corresponds to the unit's RATED VOLTAGE
REQUIREMENT.
In accordance with the N.E.C. or local codes, install a
branch circuit fused disconnect near the unit. Determine
wire sizes and overcurrent protection from the unit
nameplate ampacity and in accordance with the Minimum
Filter Size or the N.E.C. The wiring should never be
sized smaller than is recommended by either of these two
sources.
Fuses smaller than that recommended on the rating plate
could result in unnecessary fuse failure or service calls.
The use of protective devices of larger size than indicated
could result in extensive damage to the equipment.
The manufacturer bears no responsibility for damage
caused to equipment as result of the use of larger than is
recommended size protective devices.
All units have undergone a run test prior to packaging for
shipment. This equipment has been started at minimum
rated voltage and checked for satisfactory operation. Do
not attempt to operate this unit if the voltage is not within
the minimum and maximum voltages shown on nameplate.
All exterior wiring must be within approved weatherproof
conduit. The unit must be permanently grounded in
accordance with local codes, or in absence of local codes,
with N.E.C. ANSI/ NFPA NO. 70-1984 or latest edition by
using ground lug in the control box.
Fuses or HACR type circuit breakers may be used where
codes permit.
IMPORTANT NOTE: Some single phase units are
equipped with a single-pole contactor. Exercise caution
when servicing as only one leg of the power supply is
broken with the contractor.
High Voltage Wiring
Rated Voltage Minimum Supply Voltage Maximum Supply Voltage
208/230V
The unit transformer is factory connected for 230V
operation. If the unit is to operate on 208V, reconnect
the transformer primary lead as shown on the unit wiring
diagram. The induced draft blower on some models is
equipped with a low speed 230V lead (blue) and a low
speed 208V lead (black). If equipped, connect the induced
draft blower low speed 208V lead (black) in place of the low
speed 230V lead (blue). Place the unused 230V lead on
the "PARK" terminal located on ignition control.
•
Single Phase. Connect two leads to terminals L1 &
L2 in the electrical control section, using wire sizes
specified in wiring table.
Maximum Allowable
Length in Feet to Limit
Voltage Drop to 2%
Supply Wire Length - Feet
200
150
100
50
Thermostat Controls
Recommended: TSTATGTS3275 (Emerson Dual Fuel
thermostat) with TSTATTSORS outdoor temperature
sensor.
ALTERNATE: A 1-stage cool/2-stage heat pump
thermostat with OTDFPKG-01 outdoor temperature sensor
kit.
IMPORTANT NOTE: For optimal performance, an outdoor
temperature sensor should be used with the control
thermostat to determine when the unit switches from heat
pump mode to gas mode. The unit is compatible with a
standard heat pump thermostat with a minimum of 1 cool
- 2 heat. If an outdoor sensor is not installed, the gas will
not ignite until the control thermostat calls for a 2nd stage
of heat.
Low Voltage Wiring
•
Heat Pumps. Connect 24V wires from the
thermostat to the corresponding wires in the control box
using No. 18 AWG as shown in the table below:
[A/G]PD14
Term inal
W ire
Red
Green
Orange
White
Brown
Yellow
Blue
10
197
253
15 20 25 30 35 40 45 50
6
4
4
4
3
8
6
6
4
4
10 8
8
6
6
14 12 10 8
8
Wiring Table
24 - 48
Therm ostat
R (24V)
G (fan)
O (rev. valve)
W1 (heat, 2nd)
W2 (heat, 3rd)
Y (cool)
C (24V Com m on)
3
2
2
4
3
3
6
4
4
8
6
6
Advertisement
Table of Contents
