Инструкции По Установке для White Rodgers 47D40-801

3

On some units, the Outdoor Ambient Temperature (OAT) and 
Outdoor Coil Temperature (OCT) sensors may be attached 
permanently to the controller. The 47D40-801 includes 
replacement OAT and OCT sensors that plug onto the 2- and 
3-pin connectors on the controller board.
Before removing the old controller, note the location of the 
OCT sensor on the outdoor coil. The new sensor should 
be attached to the coil in the same location, or as close as 
possible. The OAT sensor is typically 24-48” long, although 
some controllers have the sensor on the board. Placement of 
the OAT sensor is not as critical as the OCT sensor, but both 
sensors are required for the controller to operate.
Four metal standoffs are used to support and mount the 
control into the unit.
Board size is 3.375 in. x 3.625 in. and requires 1 inch of 
headroom (not including mounting).

All wiring should be installed according to local and national 
electrical codes and ordinances. 
The 47D40-801 control may be mounted on any convenient 
surface using the four standoffs provided.
The control must be secured to an area that will experience 
a minimum of vibration and remain below the maximum 
ambient temperature rating of 150

o 

F. The control is approved 

for minimum ambient temperatures of -40

o 

F. 

Any orientation is acceptable.
Refer to the wiring diagram and wiring table when  
connecting the 47D40-801 control to other components of 
the system.
UL approved, 105

o 

C rated 18 gauge min., stranded 2/64” 

thick insulation wire is recommended for all low voltage safety 
circuit connections. 
UL approved, 105

o 

C rated 16 gauge min., stranded 2/64” 

thick insulation wire is recommended for all line voltage 
connections. 
Following installation or replacement, follow appliance 
manufacturer’s recommended installation or service 
instructions to insure proper operation.

C

0.25” QC

Reversing valve common

RV

0.25” QC

Reversing valve output

CC

0.25” QC

Compressor contactor coil 

Yout

0.25” QC

Compressor call output

C (2)

0.25” QC

Common, 24VAC return

D

0.25” QC

Defrost output

Y

0.25” QC

Compressor call input

B

0.25” QC

Heating mode signal input

R (2)

0.25” QC

24VAC input

Fan (2)

0.25” QC

Outdoor fan control

OAT

2-pin connector Outdoor ambient temperature sensor

OCT

3-pin connector Outdoor coil temperature sensor

REVERSING

VALVE

Demand Defrost Control

FAN

OAT

Yout

RV

FAN

C

RV

CC

D

Y

C

B

R

COMPRESSOR

CONTACTOR

TO THERMOSTAT

RUN CAPACITOR

COMPRESSOR

OUTDOOR

FAN MOTOR

HERM 

      FAN

L1

L2

C

R S

C

S R

C

CC

Legend

Low Voltage
Line Voltage
Internal Control 

Tracing

OCT