White Rodgers 47D43-811 Installation, Typical System Wiring Table, Typical System Wiring Diagram

INSTALLATION

On some units, the Outdoor Ambient Temperature (OAT) and Outdoor Coil Temperature (OCT) sensors may be attached permanently to the controller. The 47D43-811 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.

Six metal standoffs, 0.375 inch long, 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).

Typical System Wiring Table

47D43
Terminal	Type	System Component Connection
C	0.25” QC	Reversing valve common
RV	0.25” QC	Reversing valve output
HPC (2)	0.25” QC	High pressure cutout switch
LPC (2)	0.18” QC	Compressor call output
CC	0.25” QC	Compressor contactor coil
Fan (2)	0.25” QC	Outdoor fan control
C	0.25” QC	Common, 24 VAC return
R	0.25” QC	24 VAC input
D	0.25” QC	Defrost output
Y	0.25” QC	Compressor call input
OAT	2-pin connector	Outdoor ambient temperature sensor
OCT	2-pin connector	Outdoor coil temperature sensor

NOTE

All wiring should be installed according to local and national electrical codes and ordinances.

The 47D43-811 control may be mounted on any convenient surface using the six 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 150o F. The control is approved for minimum ambient temperatures of -40oF.

Any orientation is acceptable.

Refer to the wiring diagram and wiring table when connecting the 47D43-811 control to other components of the system.

UL approved, 105o C rated 18 gauge min., stranded 2/64” thick insulation wire is recommended for all low voltage safety circuit connections.

UL approved, 105o 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
COMPRESSOR		S			HERM	FAN	R	OUTDOOR
	R						S	FAN MOTOR
		C					C
					RUN CAPACITOR
CC
COMPRESSOR
CONTACTOR				TO THERMOSTAT
	L1	L2
		D	Y	C	B	R
			K2
		Yout				FAN
		CC				K1
			K3
		RV				FAN
REVERSING	RV		K2
VALVE		C
				LPC		HPC
			To µP			To µP

LOW HIGH

PRESSURE PRESSURE

CUT-OUT CUT-OUT

Fig 1. Typical System Wiring Diagram

3