10
NOTE
: ABCD bus wiring only requires a four--wire connection; however, it is
good practice to run thermostat cable having more than four wires in the event of a
damaged or broken wire during installation.
Each communicating device in the Infinity Zone System has a four--pin connector
labeled ABCD. It is recommended that the following color code be used when
wiring each device:
A — Green = Data A+
B — Yellow = Data B--
C — White = 24VAC (Com)
D — Red = 24VAC (Hot)
A B C D
A03193
It is not mandatory that the above color code be used, but each ABCD connector in
the system MUST be wired consistently.
NOTE
: Some outdoor units, typically those with multiple compressor stages,
provide their own low--voltage power source and do not require the “C” (24VAC
common) and “D” (24VAC power) connections. See the outdoor unit installation
instructions for more information.
Summary of Contents for A180218C
Page 64: ...54 A160188C...
Page 112: ...102 A160170 NIM Chart...
Page 113: ...103 A160171 Wiring Diagram Single Stage Non Communicating Heat Pump NIM...
Page 114: ...104 A160172 Wiring Diagram Two Stage Non Communicating Heat Pump NIM...
Page 115: ...105 R G FE Fan Coil or Variable Speed Furnace A07114 G Input Wiring for Blower Operation...
Page 116: ...106 R G FE Fan Coil or Variable Speed Furnace A07115 G Input Wiring for System Shutdown...
Page 119: ...109 NOTES...