7-1
CONTROL SYSTEM
Revision Y05-01Service Manual - EMD Series
7. CONTROL SYSTEM
Instructions for
Electronic Control Service Package
INTRODUCTON
The electronic control package is designated for service and is common for the following group
of air-conditioners.
1. ST/RC group - Cooling only / Cooling and Heating by heat pump.
Cooling and Heating by heat pump and supplementary heater.2. SH group -
3. RH group - Cooling and Heating by heaters only.
Before installation , be sure that you select and set for the right group .
PACKAGE CONTENT
The following should be included in the electronic control service package:
- Controller designated for service
- Model plug
MODEL PLUG SETTINGS
Before installation, make sure to set the model plug to conform with the suitable group.
GROUP J6 Setting J2 Setting
ST / RC open open
SH closed open
RH closed closed
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