12-1
CONTROL SYSTEM
Revision Y05-01
Service Manual - ALPHA
12.
CONTROL SYSTEM ALPHA 7-12
12.1 Electronic Control
12.1.1 Introduction
The electronic control information is designed for service applications, and is common
to the following groups of air-conditioners:
•
ST/ RC
group -Cooling only / cooling and heating by heat pump.
•
SH group
-Cooling and heating by heat pump and supplementary
heater.
•
RH group
-Cooling, heating by heaters only.
12.1.2
Jumpers Settings
GROUP
J6
Setting
J2
Setting
ST / RC
Open
Open
SH
Closed
Open
RH
Closed
Closed
