Hitachi RAS-5HVNC1 - Page 81

CONTROL SYSTEM
TCI-20007-rev.1
1-71
n
Control for Crankcase Heater
< During Stopping Compressor > < During Operating Compressor >
Power to CH : ON
Power to CH : OFF
Power to O.U.: ON
Power to CH : ON
Power to CH : OFF
Compressor: ON
Temp. at Top
of Compressor
Temp. at Top
of Compressor
Temp. at Top
of Compressor
< 75
o
C
> 75
o
C
Temp. at Top
of Compressor
> 80
o
C
< 80
o
C
< Target Temp. - 15
o
C
> Target Te mp. - 15
o
C
< Target Te mp. - 10
o
C
> Target Temp. - 10
o
C
O.U.: Outdoor Unit