York RMHC 18-30 - Electrical Work; Electrical Specifications by Model; Defrosting Operation; Starting Defrosting Conditions

ENGLISH
14
0
-1
-2
-3
-4
-5
1
2
0 5 10 15 20 25 30 35 40 45 50
T3 (°C)
3 min
Time
Elapsed
(min)
Starting Defrosting Mode under condition a.
40 min
■ Electrical Work
■ Defrosting operation (Available for heating only).
1. Condition to start defrosting: Units will switch to defrosting
mode when either of the following conditions is met.
a. Unit has been running under T3 < 0
o
C for 40 minutes
and T3 < -3
o
C for 3 minutes.
b. Unit has been running at high temperature protection
mode* for 90 minutes. (*High temperature protection
mode: when coil temperature of indoor unit reaches
55°C, outdoor unit will turn off external unit fan but
still keep compressor running).
2.
Condition to stop defrosting: Units will switch back to heating
mode when either of the following conditions is met.
a. Unit has been running at defrosting mode for 10
minutes.
b. T3 > 20
o
C
Remark: T3 is coil temperature of outdoor units.
NOTE
The supply voltage must be consistent with the rate voltage of the air conditioner.
Model Power Source Power Switch and Fuse rating Wiring size
18 220-240V ~ 50Hz 4.6x2A 3x2.5mm
2
21 220-240V ~ 50Hz 5+6A 3x2.5mm
2
27 220-240V ~ 50Hz 4.6x3A 3x2.5mm
2
30 220-240V ~ 50Hz 8.2+5.8A 3x2.5mm
2
Heating mode Defrosting mode
J287-EN.indd 14J287-EN.indd 14 07.03.2006 9:30:18 Uhr07.03.2006 9:30:18 Uhr