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12-17
CONTROL SYSTEM
Revision 0
Service Manual - EDS
12.8
Protection
12.8.1
Cooling Mode Protections
Indoor Coil Defrost
Mode: Cooling, Dry, Auto
Temp: Selected desired temp.
Fan:
Any
Timer: Any
I Feel: On or Off
Control Function
Protect the indoor coil from ice formation at low ambient temperature.
t1 = 5 min minimum for each COMP starting
t2 = OFAN cycling (alternate between ON and OFF every 30 sec) for 20 min
maximum
t3 = COMP and OFAN stop for 10 min minimum
Notes:
x
When J7 is closed (connected), OFAN cycling is cancelled and the
set temperature for COMP & OFAN cut-out and cut-in are changed.
COMP & OFAN are forced OFF when ICT =< -6
o
c, and are kept OFF
until ICT > 14
o
c.
x
For WAX model, the defrost processes is simpler. When J7 is open,
COMP & OFAN are forced OFF when ICT =< -1
o
c, and are kept OFF
until ICT > 5
o
c. When J7 is closed, the WAX defrosting process is the
same as that of the other models (R.H.S. of the graph above). In both
cases, the ICT checking in t2 and t3 are not applied.
ICT [
o
c]
+2
ON
OFF
ON
OFF
t1
t2
t3
COMP
OFAN
+1
+5
+14
0
-1
-6
ON
OFF
IFAN
J7 OPEN
J7 CLOSED
t1
t1
Содержание ONG3-18
Страница 38: ...8 1 WIRING DIAGRAMS Revision 0 Service Manual EDS 8 WIRING DIAGRAMS 8 1 Indoor Unit EDS25 EDS35 EDS52 EDS73 ...
Страница 39: ...8 2 WIRING DIAGRAMS Revision 0 Service Manual EDS 8 2 Indoor Unit EDS100 EDS120 ...
Страница 40: ...8 3 WIRING DIAGRAMS Revision 0 Service Manual EDS 8 3 Outdoor unit GCN9 GCN12 ...
Страница 41: ...8 4 WIRING DIAGRAMS Revision 0 Service Manual EDS 8 4 Outdoor unit GC10 34 GC45 ...
Страница 42: ...8 5 WIRING DIAGRAMS Revision 0 Service Manual EDS 8 5 Outdoor unit ONG3 17 ...
Страница 43: ...8 6 WIRING DIAGRAMS Revision 0 Service Manual EDS 8 6 Outdoor unit GCZ22 ...
Страница 86: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 2 Outdoor unit GCN 12 RC 14 3 Revision 0 Service Manual EDS ...
Страница 88: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 3 Outdoor unit ONG 3 17 RC 14 5 Revision 0 Service Manual EDS ...
Страница 90: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 4 Outdoor unit GCZ 22 RC 14 7 Revision 0 Service Manual EDS ...
Страница 92: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 5 Outdoor unit GC 10 34 RC 14 9 Revision 0 Service Manual EDS ...
Страница 94: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 6 Outdoor unit GC 45 RC 14 11 Revision 0 Service Manual EDS ...
Страница 96: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 7 Outdoor unit EDS 25 14 13 Revision 0 Service Manual EDS ...
Страница 98: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 8 Outdoor unit EDS 35 14 15 Revision 0 Service Manual EDS ...
Страница 100: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 9 Outdoor unit EDS 52 14 17 Revision 0 Service Manual EDS ...
Страница 102: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 10 Outdoor unit EDS 73 14 19 Revision 0 Service Manual EDS ...
Страница 106: ...EXPLODED VIEWS AND SPARE PARTS LISTS 14 11 2 Outdoor unit EDS 120 14 23 Revision 0 Service Manual EDS ...
Страница 113: ... 2 MODES OF OPERATION FUNCTIONS AND FEATURES ...