Electra WNG 50 DCI Service Manual page 66

CONTROL SYSTEM
12.5 Outdoor Unit Control
12.5.1 Run Mode
Run mode is the default operation mode of the system. This is the standard operation mode that
is active in field application (at customer site).
System can go from run mode to other operation modes through keyboard or serial ports.
12.5.2 Mode Setting
Mode defines the ODU operation mode. There are three possible operation modes:
1. STBY – standby mode
2. COOL - the unit operating at cooling cycle
3. HEAT - the unit operating at heat pump cycle
4. SB Input
The ODU will change mode between COOL/HEAT and Idle according to the STBY
dry contact input as follows:
STBY input
Short
Short
Open
12-10
Open
according normal mode selection
Revision Y05-02
CONTENT
ODU mode
SB
last mode
Service Manual - WNG 50_60_80 DCI