FILE NO.
Item
5.Release protective control by tempera- ture of indoor heat exchanger
temperature | 7˚C | |
exchanger | ||
6˚C | ||
| ||
Indoor heat | 5˚C | |
|
temperature | 55˚C | |
exchanger | 52˚C | |
heatIndoor | ||
48˚C | ||
|
Operation flow and applicable data, etc. | Description | ||
<In cooling/dry operation> |
| 1) When temperature of the indoor | |
heat exchanger drops below 5°C, | |||
the compressor speed is | |||
In cooling/dry operation, the sensor of indoor heat | |||
reduced. (P zone) | |||
exchanger detects evaporation temperature and | |||
2) When temperature of the indoor | |||
controls the compressor speed so that temperature of | |||
heat exchanger rises in the | |||
the heat exchanger does not exceed the specified | |||
range from 6°C to under 7°C, the | |||
value. |
| ||
| compressor speed is kept. | ||
|
| ||
|
| (Q zone) | |
Usual cooling capacity control |
| 3) When temperature of the indoor | |
|
| heat exchanger rises to 7°C or | |
R |
| higher, the capacity control | |
| When the value is | operation returns to the usual | |
| control in cooling operation. | ||
Q | in Q zone, the | ||
(R zone) | |||
compressor speed | |||
| is kept. |
| |
P |
|
| |
Reduction of compressor speed |
|
|
<In heating operation> |
| 1) When temperature of the indoor | |
heat exchanger rises in the | |||
range from 50°C to 55°C, the | |||
In heating operation, the sensor of indoor heat ex- | |||
compressor speed is kept. | |||
changer detects condensation temperature and controls | |||
(Q zone) | |||
the compressor speed so that temperature of the heat | |||
When temperature of the indoor | |||
exchanger does not exceed the specified value. | |||
heat exchanger drops in the | |||
|
| ||
|
| range from 46°C to under 55°C, | |
|
| the compressor speed is kept. | |
Reduction of compressor speed |
| (Q zone) | |
P |
| 2) When temperature of the indoor | |
|
| heat exchanger rises to 55°C or | |
|
| higher, the compressor speed is | |
| When the value is | reduced. (P zone) | |
Q | 3) When temperature of the indoor | ||
in Q zone, the | |||
| compressor speed | heat exchanger does not rise to | |
| is kept. | 50°C, or when it drops below to | |
|
| 46°C, the capacity control | |
R |
| operation returns to the usual | |
| control in heating operation. | ||
|
| ||
Usual heating capacity control |
| (R zone) |
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