Reznor PDF2SF Unit Installation Manual - Manual (Page 11)

11
√
Verify factory wiring is in accordance with the unit
wiring diagram (Figures 13 - 16, pages 31 - 34). Verify
none of the connections loosened during shipping or
installation.
Line Voltage
• The line voltage to the unit should be supplied from a
dedicated branch circuit containing the correct fuse or
circuit breaker for the unit.
• An electrical disconnect must be located within
sight of and readily accessible to the unit
. This
switch shall be capable of electrically de-energizing the
outdoor unit. See unit data label for proper incoming field
wiring. Any other wiring methods must be acceptable
to authority having jurisdiction.
• Use only copper wire for the line voltage power supply
to this unit (Table 3, page 12). Use proper code agency
listed conduit and a conduit connector for connecting
the supply wires to the unit. Use of rain tight conduit is
recommended.
• Provide power supply for the unit in accordance with
the unit wiring diagram and the unit rating plate.
• Overcurrent protection must be provided at the branch
circuit distribution panel and sized as shown on the unit
rating label and according to applicable local codes.
See the unit rating plate for maximum circuit ampacity
and maximum overcurrent protection limits.
• A wiring diagram is located on the inside cover of the
control access panel of the outdoor unit. The installer
should become familiar with the wiring diagram before
making any electrical connections to the outdoor unit.
See Figures 13 - 16.
• If any of the original wires supplied with the unit must
be replaced, they must be replaced with material of
the same gauge and temperature rating.
• Units are shipped from the factory wired for 240 volt
transformer operation. For 208V operation, remove the
lead from the transformer terminal marked 240V and
connect it to the terminal marked 208V.
• Connect the line-voltage leads to the terminals on the
contactor inside the control compartment.
Thermostat / Low Voltage Connections
• These Gas / Electric units are designed to operate
with a 24 VAC Class II control circuit. The control circuit
wiring must comply with the current provisions of the
NEC (ANSI/NFPA 70) and with applicable local codes
having jurisdiction. Thermostat connections should be
made in accordance with the instructions supplied with
the thermostat and the indoor equipment.
• These units use a special 2 speed compressor to
achieve a high level of efficiency in a compact frame.
A 2 stage heat / 2 stage cool thermostat with back-
up fossil fuel heat capability is required with the
Dual Fuel iHybrid™ heat pump packaged system.
This system is capable of providing two stages of
cooling, two stages of heating in heat pump mode and
an additional 2 stages of secondary gas heating. See
Figure 12 (page 30)
• The low voltage wires must be properly connected
to the units low voltage terminal block. Route 24V
control wires through the gas furnace side of the unit.
Recommended wire gauge and wire lengths for typical
thermostat connections are listed in Table 4 (page 12).
• The thermostat should be mounted about 5 feet
above the floor on an inside wall. DO NOT install the
thermostat on an outside wall or any other location
where its operation may be adversely affected by radiant
heat from fireplaces, sunlight, or lighting fixtures, and
convective heat from warm air registers or electrical
appliances. Refer to the thermostat manufacturer’s
instruction sheet for detailed mounting information.
2 Stage Heat/Cool Thermostat Configuration
For proper operation and highest efficiency, a 2
Stage Heat Pump thermostat with back-up fossil fuel
capabilities is required for this product.
A 2 stage heat
pump thermostat is required to control the special 2 speed
compressor in both Heating and Cooling modes of heat
pump operation. The 2 Stage Heat Pump thermostat will
also allow the unit to operate as a two stage gas heat
system while set in the Emergency Heat mode.
Connect the low voltage thermostat wires between
terminals R (24VAC), Y1 (1st Stage Cool), G (Fan), Y2
(2nd Stage Cool), W1 (1st Stage Heat), W2 (2nd Stage
Heat), C (24V Com.), E (Emer. Heat), O or O/B (Reversing
Valve), and L (Defrost board fault monitoring-Optional)
on both the thermostat sub-base and unit low voltage
terminal board. See Figures 13 - 16 and your heat pump
thermostat installation manual for proper connections.
NOTE: Thermostats with a single “O/B” terminal for
selection of reversing valve control must be configured
for the “O” terminal to energize the reversing valve coil in
the cooling mode of operation.
Table 2. Electrical Data
Model
Number
Maximum
Heating
Input
Nominal
Electrical
Supply
Voltage Range Compressor
Fan
Motor
FLA
Indoor
Blower
FLA
Single Circuit
Min
Max
RLA LRA MCA MOP
X24K080CA 80,000 208-230/60/1 187 253 11.7 58.3 0.91 4.3 20.3 30.0
X36K100CA 100,000 208-230/60/1 187 253 15.3 83.0 2.6 6.8 29.0 40.0
X48K120CA 120,000 208-230/60/1 187 253 21.2 104.0 2.6 9.1 38.6 50.0
X60K120CA 120,000 208-230/60/1 187 253 28.8 152.9 1.46 9.1 47.0 70.0
Note:
FLA = Full Load Amps; LRA = Lock Rotor amps; RLA = Rated Load Amps.