Trane NTXMPH20A122AA - Actuator Control

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ACTUATOR CONTROL
9
NTXMMX20A122AA NTXMMX24A132AA NTXMMX30A132AA NTXMMX36A142AA
NTXMMX42A152AA
NTXMPH20A122AA NTXMPH24A132AA NTXMPH30A132AA
Relation between main sensor and actuator
Sensor Purpose
Actuator
Compressor LEV
Outdoor
fan motor
4-way valve
2-way solenoid
valve
Defrost
heater
(NTXMMX42A152AA
NTXMPH20A122AA
NTXMPH24A132AA
NTXMPH30A132AA)
(NTXMPH20A122AA
NTXMPH24A132AA
NTXMPH30A132AA)
Discharge temperature
thermistor
Protection
○ ○ ○
Indoor coil temperature
thermistor
Cooling: Coil frost
prevention
○ ○
Heating: High pres-
sure protection
○ ○
Defrost thermistor Heating: Defrosting
○ ○ ○ ○
Fin temperature
thermistor
Protection
○ ○
Ambient temperature
thermistor
Control/Protection
○ ○ ○ ○
Heating: Defrosting
(Heater)
○
Outdoor heat exchanger
temperature thermistor
Cooling: Control/
Protection
○ ○ ○ ○
Capacity code Control
○ ○
OBHT702