Haier GE NS17HSA Installation Instructions Manual page 17

Control Control Label
Locations or Description
P1 50, 70, 90, 100
W
C
L
P2 R
Y2
O
Y1
165, 140, 100,
P3
60
DIS-YEL
P4
AMB-BLACK
P5 DELAY
TST, PS DF, C,
P6
R, O, Y1, Y2
DS1 RED LED
DS2 GREEN LED
TWO
FAN
CONNECTORS
O OUT O OUT
LO-PS LO-PS
Y2 OUT Y2 OUT
Y1 OUT Y1 OUT
HS-PS HS-PS
L L
508270-01G / 31-5000717
Purpose
Defrost Temperature
Termination Shunt
(Jumper) Pins
24VAC Thermostat Input
/ Output
24VAC Common
Thermostat Service Light
24VAC
Thermostat Input
Thermostat Input
Thermostat Input
Nominal Defrost Time
Selection
Coil Sensor
Ambient Sensor
Delay Mode
Factory Test Connectors
Diagnostic LED
Condenser Fan Operation These two connections provide power for the condenser fan.
24 VAC output
Low-Pressure Switch
24 VAC Output
24 VAC Common Output
High-Pressure Switch
Service Light Output
Table 7. Control Board Inputs, Outputs and Configurable Settings
Function
The control board has selections which are: 50, 70, 90, and 100°F
(10, 21, 32 and 38°C). The shunt termination pin is factory-set at 50°F
(10°C). If the temperature shunt is not installed, the default termination
temperature is 90°F (32°C).
24VAC input / output from indoor thermostat to indoor unit.
24VAC common.
Thermostat service light connection.
24VAC.
Controls the second stage operation of the unit. Not applicable in single
stage unit.
Reversing valve solenoid.
Controls the operation of the unit.
Provides selection of the nominal defrost time. Valid options are 140, 100,
60, and 165 minutes.
(P4-5) Ground connection for outdoor coil temperature sensor.
(P4-6) Connection for outdoor coil temperature sensor.
(P4-3) Ground connection for outdoor ambient temperature sensor.
(P4-4) Connection for outdoor ambient temperature sensor.
The control board has a field-selectable function to reduce occasional
sounds that may occur while the unit is cycling in and out of the defrost
mode. When a jumper is installed on the DELAY pins, the compressor will
be cycled off for 30 seconds going in and out of the defrost mode. Units
are shipped with jumper installed on DELAY pins.
NOTE - The 30-second off cycle is NOT functional when TEST pins on
P1 are jumpered.
No field use.
Control board LEDs may be OFF, ON, or FLASHING to indicate
diagnostic conditions which are described in Table 6.
24 VAC output connection for reversing valve.
When the low pressure switch trips, the control board will cycle off the
compressor, and the strike counter in the control board will count one
strike. The low pressure switch is ignored under the following conditions:
• during the defrost cycle and 90 seconds after the termination of defrost
• when the average ambient sensor temperature is below 0°F (-18°C)
• during 90 seconds following the start of the compressor during TEST
mode.
24 VAC output for second-stage compressor solenoid.
24 VAC common output, switched for enabling compressor contactor.
When the high pressure switch trips, the control board will cycle off the
compressor, and the strike counter in the control board will count one
strike.
24VAC service light output.
Issue 2225 Page 17 of 21