Rheem RA1736AJ2CB - Conventional Thermostat Wiring

30
INSTALLATION
Conventional Thermostat Wiring
Conventional Thermostat Wiring
fault history of the system. This diagnostic information is not
available when the unit is using a conventional thermostat.
Reference section EcoNet Communication System™ Control
Wiring.
4HERMOSTATCONTROLWIRINGREQUIRESAMINIMUMOFFOUR
wires for proper unit operation:
R – 24VAC
C – 24VAC common
9n&IRSTSTAGEOPERATION
9n3ECONDSTAGEOPERATION
SOLID COPPER WIRE - AWG.
3.0 16 14 12 10 10 10
2.5 16 14 12 12 10 10
2.0 18 16 14 12 12 10
50 100150 200250 300
Length of Run - Feet (1)
Thermostat Load - Amps
(1) Wire length equals twice the run distance.
NOTE: Do not use control wiring smaller than No. 18 AWG between thermostat and outdoor unit.
TABLE 4
FIELD WIRE SIZE FOR 24 VOLT THERMOSTAT CIRCUITS