White Rodgers 47D43-811 installation instructions Specifications, Operation

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SPECIFICATIONS

Electrical Ratings [@ 77oF (25oC)]:

 

 

Rated Voltage

.

24 VAC

Rated Voltage Range

 

18-30 VAC

Max. Power Consumption @ 24 VAC . .

 

4.08 VA

Nominal Frequency

. 50/60 Hz

Relay Load Ratings:

 

 

Compressor Contactor Relay . . .

 

0 VA in rush, 6 VA holding

Fan Relay

. 1/2 HP @ 240, 1/4 HP

 

 

@ 120 VAC

Reversing Valve Relay (RV) . . .

.

24 VA

Auxiliary Heat Relay (D)

 

1 Amp. 0.6 P.F.

Operating Temperature Range

 

-40oto 150o F (-40oto 65o C)

Humidity Range

 

5% to 95% relative humidity

 

 

(non-condensing)

High Pressure Cutout Switch (HPC) . . .

 

18 VAC

Low Pressure Cutout Switch (LPC) . . . . 18 VAC

Timing Specifications @ 60Hz*

 

Nom

Units

 

 

 

Defrost Lockout Time

34

Mins.

 

 

 

Maximum Defrost Time

14

Mins.

 

 

 

Transient Delay (Normal)

2

Mins.

 

 

 

Back to Back Transient

 

 

Delay

4

Mins.

 

 

 

Maximum Frosting Time

6

Hrs.

 

 

 

Short Cycle Lockout Time

5

Mins.

 

 

 

Noise Abatement Time

 

 

(Normal

30

Sec.

 

 

 

Noise Abatement Time

 

 

(Forced Defrost)

5

Sec.

 

 

 

*50Hz Timings are 20% longer.

OPERATION

Each controller has 24 VAC input and B, Y, and D terminals for connection to a standard thermostat. The controller has pins for connection of two temperature sensors to measure ambient and coil temperature, as well as connections for high- and low-pressure switch monitoring. Controlled outputs are outdoor fan, reversing valve, and compressor contactor.

The 47D43 provides two LEDs for status and fault indication.

Option Switch

Switch labeled SW1 is used to select the defrost mode termination temperature of outdoor coil. Defrost mode is terminated when the coil temperature exceeds the selected termination temperature. Temperature options for SW1 switch settings are:

 

 

 

 

 

 

 

B

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On

Off

50o F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Off

On

60o F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On

On

70o F (default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Off

Off

80o F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

A

 

 

 

 

 

 

 

 

 

 

 

 

Test Pins

The pins labeled TEST can be used to change operation mode in the field. Momentarily short the test pins to force the system into the defrost mode. Momentarily short the test pins again to terminate the defrost mode. To avoid unnecessary system mode transition, do not use the test pins frequently.

Diagnostic Features

The control continuously monitors system operation. If a fault occurs, the two LEDs on the control will indicate a diagnostic code, if more than one fault occurs, only the code with the higher priority will be shown.

The table shows the diagnostic codes.

 

 

Fault

Display

LED #1

LED #2

Indication

Priority

 

 

 

 

Off

Off

No power

0

 

 

 

 

On

On

Coil sensor failure

4

 

 

 

 

 

 

Ambient sensor

 

Off

On

failure

3

Flash*

Flash*

Normal

1

 

 

Low pressure

 

Off

Flash*

lockout

7

 

 

 

 

 

 

High pressure

 

Flash*

Off

lockout

8

 

 

 

 

 

 

Low pressure

 

On

Flash*

switch open

5

 

 

High pressure

 

Flash*

On

switch open

6

 

 

 

 

On

Off

Defrost mode

1

 

 

 

 

Alternating Flash

5-minute delay

2

 

 

 

 

*The flash time is to be 0.5 seconds on and 0.5 seconds off followed by 2 seconds off.

2

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Contents Precautions DescriptionSpecifications OperationTypical System Wiring Diagram InstallationTypical System Wiring Table 47D43