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Lennox Signature XP21 Series User Manual

Lennox Signature XP21 Series
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Page 23
XP21
NOTE  FOR PROPER VOLTAGES, SELECT CONTROL WIRES GAUGE PER
TABLE BELOW.
WIRE RUN LENGTH AWG# INSULATION TYPE
LESS THAN 100’ (30 METERS) 18 TEMPERATURE RATING
MORE THAN 100’ (30 METERS) 16 35ºC MINIMUM.
NOTE  WIRE TIE PROVIDES LOW VOLTAGE WIRE STRAIN RELIEF AND TO
MAINTAIN SEPARATION OF FIELD INSTALLED LOW AND HIGH VOLTAGE
CIRCUITS.
NOTE  DO NOT BUNDLE ANY EXCESS 24VAC CONTROL WIRES INSIDE CON-
TROL BOX.
A. ROUTE CONTROL WIRES  NON−COMMUNICATING
A
B
HEAT PUMP
CONTROL (A175)
CONTROL BOX
HOLE
INSTALL LOW VOLTAGE CONTROL WIRING FROM OUTDOOR TO INDOOR
UNIT AND FROM THERMOSTAT TO INDOOR UNIT AS ILLUSTRATED.
3
A RUN 24VAC CONTROL WIRES THROUGH HOLE WITH GROMMET.
B MAKE 24VAC CONTROL WIRE CONNECTIONS TO HEAT PUMP
CONTROL (A175) .
B. ROUTE CONTROL WIRES  COMMUNICATING
MAXIMUM LENGTH OF WIRING (18 GAUGE) FOR ALL CONNECTIONS ON THE RSBUS IS LIMITED TO 1500 FEET (457 METERS). COLOR−CODED, TEMPERATURE
RATING 95
º
F (35
º
C) MINIMUM, SOLID CORE. (CLASS II RATED WIRING)
ANY EXCESS HIGH VOLTAGE FIELD WIRING SHOULD BE TRIMMED AND SECURED AWAY FROM ANY LOW VOLTAGE FIELD WIRING. TO
FACILITATE A CONDUIT, A CUTOUT IS LOCATED IN THE BOTTOM OF THE CONTROL BOX. CONNECT CONDUIT TO THE CONTROL BOX USING
A PROPER CONDUIT FITTING.
ROUTE HIGH VOLTAGE AND GROUND WIRES
CONTROL BOX
PIPING PANEL
HIGH VOLTAGE
CONDUIT HOLE
GROUND LUG
CONTACTOR
WATERTIGHT
CONDUIT
FITTING
WATERTIGHT
FLEXIBLE
CONDUIT
TO AC DISCONNECT
BOX
ACCESS VIEW
ELECTRICAL INLET
(HIGH VOLTAGE)
WIRING ENTRY POINTS
ELECTRICAL INLET (CONTROL WIRING  LOW VOLTAGE).
USE BUSHING PROVIDED IN BAG ASSEMBLY HERE.
4

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Lennox Signature XP21 Series Specifications

General IconGeneral
BrandLennox
ModelSignature XP21 Series
CategoryHeat Pump
LanguageEnglish

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