Service manual

ESIE04-01 General Functionality
Part 2 – Functional Description 2–19
3
2
4
5
1
Defrost control
Defrost ending
condition
The defrost cycle will be ended when one of the following conditions have been reached minimum 1
minute after defrost start :
P Outdoor unit heat exchanger temperature ≥ 10°C
P High pressure ≥ 24.5 bar (calculated from LP, inv frequency and PI)
P 10 minutes have elapsed since start of defrost operation
RZQ71 RZQ100&125
A Hz 162 Hz 174 Hz
B Hz 122 Hz 164 Hz
C Hz 48 Hz 72 Hz
Defrosting start
Defrosting complete
Previous control
Compressor
4-way valve
Motorized valve
Outdoor unit fan
Indoor fan
ON
150 pls
ON
ON
480 pls
A Hz
B Hz
C Hz
ON
0 pls (15 seconds)
ON
ON
0 pls (5~60 seconds)
(wet protection control)
OFF
OFF
OFF
RZQ - Final.book Page 19 Monday, September 20, 2004 11:24 AM