Haier GE NS23AM Service Manual page 74

Outdoor Control Operation, Checkout and Status / Error Codes
Operation:
The outdoor control is a microprocessor-based device for use with variable-capacity compressors up to 5-tons in capacity
operating on 24VAC residential power. The outdoor control integrates the functionality of maintaining compressor speed,
RAST TERMINALS FOR
THERMOSTAT WIRING
CONNECTION
Status Codes:
NOTE - System fault and lockout codes take precedence over system status codes (cooling, heating operating percentages or defrost/dehumidification). Only the latest
active fault or lockout codes are displayed (if present). If no fault or lockout codes are active, then system status codes are displayed.
GF= Gas Furnace, AH=Air Handler, ID=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OD=Outdoor Unit (AC or HP), ZA=Zone system and TS=Thermostat
Inverter
Alert Priority
Flash
Code Condition
Code
Information
600
Only-Dealer
Information
601
Only-Dealer
Table 22. Outdoor Control 7-Segment Display Alert Codes - Outdoor Control Status
PUSH BUTTON
Figure 45. Outdoor Control Unit
Actual Displayed
Component or System Operational State and Troubleshooting Tip
Alert Text
Compressor has been cycled OFF on utility load shedding.
• Load shedding function provides a method for a local utility company to limit the
maximum power level usage of the outdoor unit.
Load Shed Event
• The feature is activated by applying 24VAC power across the L and C terminals on the
outdoor control
•
OD Unit Low • Outdoor unit will not operate when the outdoor ambient is at or below 4°F (-15.6°C).
Ambient
• If the unit is satisfying a demand (running) and the outdoor ambient drops below 4°F
Operational
Lockout
outdoor ambient drops to 15°F (-9.4°C) which will result in the unit being locked out
(shut down).
Page 74
7 SEGMENT
DISPLAY
CHARGE
MODE JUMPER
(CHRG MODE)
CHARGE MODE AND
OPERATION MODE
JUMPER DETAIL
OPERATION
MODE
JUMPER
How to Clear Alert
Automatically clears
when L terminal is
inactive.
Automatically
clears when low
temperature condition
no longer exists.
Code
31-5000746 Rev. 0