Lennox XP25-024-230-01, Инструкция по установке и обслуживанию

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Page 25
XP25
OUTDOOR CONTROL
4
ROUTE CONTROL WIRES
Maximum length of wiring (18 gauge) for all connections on
the RSBus is 1500 feet (457 meters). Wires should be col­
or-coded, with a temperature rating of 95
º
F (35
º
C) mini­
mum, and solid-core (Class II Rated Wiring). All low volt­
age wiring must enter unit through the provided field-
installed busing installed in the electrical inlet.
The iComfort Wi-Fi
®
thermostat requires four thermostat
wires between the thermostat and the furnace / air handler
iComfort
®
control and four wires between the outdoor unit
and the furnace/air handler iComfort
®
control. When a
thermostat cable with more than four wires is used, the ex­
tra wires must be properly connected to avoid electrical
noise (see below).
Use a wire nut to bundle the four unused wires at each end
of the cable. Each bundle should also include an additional
wire that should be connected on each end to the C termi­
nal as shown in the figure below.
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 side panel of
the control box. Connect conduit to the control box using a proper conduit fitting.
ROUTE HIGH VOLTAGE AND GROUND WIRES
TYPICAL CONTROL BOX
GROUND LUGS
CONTACTOR
WATERTIGHT
FLEXIBLE CONDUIT
TO SERVICE
DISCONNECT BOX
ELECTRICAL INLET
(HIGH VOLTAGE)
Indoor Control
iComfort Wi-Fi
®
thermostat
Single Wire To
C Terminal
Unused Wires
Unused Wires
Single Wire To C Terminal
Outdoor Control
CONTROL WIRING
ROUTE (LOW VOLTAGE)
ELECTRICAL (CONTROL WIRING)
AND LINE SET INLETS USE
BUSHING AND GROMMETS
PROVIDED IN BAG
Provided Rast
6-PIN Connector
BUSHING
GROMMETS
3
Figure 15. Electrical (Continued)