Duplex Unit Power Connections; Comfortlink™ Communication Wiring - Carrier R080-528 Installation Instructions Manual

DUPLEX UNIT POWER CONNECTIONS — The 30GXN,R
duplex units will require separate power supplies to each mod-
ule for both main power and control power. Power should be
provided according to the requirements for each module (see
Table 1 for duplex unit designations and Tables 7A-8B for elec-
trical data).
The ComfortLink™ controllers on the two modules must be
linked together following the procedure outlined below and in
the Controls Start-Up, Operation, Service, and Troubleshooting
manual. The communication wire specification is detailed
below.
COMFORTLINK COMMUNICATION WIRING — Con-
ductors and drain wire must be 20 AWG (American Wire
Gage) minimum stranded, tinned copper. Individual conduc-
tors must be insulated with PVC, PVC/nylon, vinyl, Teflon, or
Fig. 37 — Field Power Wiring — 30GXN,R204-350 and Associated Modular Sizes
polyethylene. An aluminum/polyester 100% foil shield and an
outer jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with
a minimum operating temperature range of –20 C to 60 C is
required. Wire manufactured by Alpha (2413 or 5463),
American (A22503), Belden (8772), or Columbia (02525)
meets the above mentioned requirements.
ComfortLink communication wiring should be kept
separate from high voltage power wiring to avoid electromag-
netic interference. The communication wiring should have a
weatherproof jacket or dedicated conduit. The wiring should be
supported with wire ties or conduit clamps.
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