Thermo Off Selection Function - Hitachi RCUE40AG2 Service Manual

Control system

Thermo off selection
function

Standard setting

Setting to continue
Thermo OFF
temperature
pag. 75

4.17. Thermo off selection function

It is a function to prevent the Chiller unit from going Thermo OFF due to a sudden
change of temperature or fl ow volume (inverter water pumps). It is possible to select it
by DSW7-pin 3 on operation PCB. Standard is set at delivery.
1. Standard setting
Immediate stop when reaching to Themo OFF temp
2. Setting to continue Thermo OFF temperature for a certain period
Not immediate stop although reaching to
Thermo OFF temperature

NOTE:
However, it becomes Thermo OFF immediately once outlet water temperature is decreased
until protection values
SMGB0003 rev.0-01/2007
PCB
C
Stop if the status under Thermo OFF
temperature continues for 3 min.
4 4