Heating Start-Up - Lennox LRP16G Installation Instructions Manual

Use copper conductors only. Each unit must be wired
with a separate branch circuit and be properly fused.
NOTE: An optional bottom-entry power kit is available for
these units. See the kit instructions for proper installation
details.
Ground
Contactor
Lug
If 208 Volt is supplied, transformer connection must be
changed
Figure 5. 208/230 Line Voltage Wiring
When connecting electrical power and control wiring
to the unit, waterproof type connectors must be used
so that water or moisture cannot be drawn into the unit
during normal operation.
Thermostat
The room thermostat should be located on an inside
wall where it will not be subject to drafts, sun exposure,
or heat from electrical fixtures or appliances. Follow the
manufacturer's instructions enclosed with thermostat for
general installation procedure. Color-coded insulated wires
(#18 AWG) should be used to connect the thermostat to
the unit.
Compressor
Units are shipped with compressor mountings factory-
adjusted and ready for operation.
Do not loosen compressor mounting bolts.
Field-Supplied Fused
or Circuit Breaker
Disconnect
CAUTION
CAUTION
THERMOSTAT
L2
POWER WIRING
24V CONTROL WIRING
(NEC CLASS 2)
Figure 6. Typical Wiring Connections
For Your Safety Read Before Lighting
Furnace is equipped with a direct ignition control. Do
not attempt to manually light the burners.
Pre-Start Check List
Complete the following checks before starting the unit:
1. Check the type of gas being supplied. Be sure it is the
same as listed on the unit nameplate.
2. Make sure that the vent cover has been properly
installed.
To Light Main Burners
1. Turn off electrical power to unit.
2. Turn the thermostat to lowest setting.
Page 13
OUTDOOR UNIT
R R
C C
Y1 Y1
Y2 Y2
W2 W2
W W
G G
SINGLE PHASE
L1
GROUND
SCREW
POWER WIRING
208/230-1-60
(75° MIN. WIRE)

Heating Start-Up

CAUTION
Red
Blue
Yellow
Yellow w/
Blue Stripe
Brown
White
Green