Friedrich MR09C1H Service Manual

During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent
freezing of the indoor heat exchanger. (The signal from the indoor unit must be divided into the zones as the followings.)
Detail
Conditions for Start Controlling
Judge the controlling start with the indoor heat exchanger temperature after 2 sec from operation start.
Control in Each Zone
A
B
C
D
E
Return/Reset zone
Up zone
Keep zone
Drooping zone
Stop zone
Heat exchanger
thermistor temperature
Function and Control
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Friedrich MR09C1H Specifications

General

Brand	Friedrich
Model	MR09C1H
Category	Air Conditioner
Language	English