Fujitsu ABYG18KRTA, Service Manual

Page: 182 / 196

¢
Models: AOYG30KBTB and AOYG36KBTB
Operation mode Outdoor temp. (Ta) Trigger condition Release condition
Cooling
52°C ≤ Ta 8.0 A 7.5 A
50°C ≤ Ta < 52°C 12.0 A 11.5 A
42°C ≤ Ta < 50°C 14.0 A 13.5 A
2°C ≤ Ta < 42°C 18.0 A 17.5 A
Ta < 2°C 20.0 A 19.5 A
Heating
2°C ≤ Ta 18.0 A 17.5 A
Ta < 2°C 20.0 A 19.5 A
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Model: AOYG45KBTB
Operation mode Outdoor temp. (Ta) Trigger condition Release condition
Cooling
52°C ≤ Ta 10.0 A 9.5 A
50°C ≤ Ta < 52°C 13.0 A 12.5 A
46°C ≤ Ta < 50°C 15.0 A 14.5 A
42°C ≤ Ta < 46°C 18.0 A 17.5 A
2°C ≤ Ta < 42°C 20.0 A 19.5 A
Ta < 2°C 24.0 A 23.5 A
Heating
2°C ≤ Ta 20.0 A 19.5 A
Ta < 2°C 24.0 A 23.5 A
8-4. Indoor unit fan motor over temperature protection
When satisfy the following conditions, the protection works.
• After the 90 seconds from the fan operation, detect less than 300 rpm for 10 seconds.
• IPM trip protection works.
• Current overload protection works.
When detecting the above condtion, recheck the condition after 6 minutes. When count the twice,
the protection works.
• Protection contents
Reduce the static pressure 20 Pa. When it does not dissolve even the minimum static pressure
condition, work the following operation.
– Fan motor error displayed when less than 300 rpm for 10 seconds is detected after the 90 sec-
onds from the fan operation.
– Fan stop 40 seconds when IPM trip protection works.
– Fan stop 50 seconds when corrent overload protection works.
8-3. Current release control
- (04-40) -
8. Various protections
CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS