INVENTOR U6MRS32-18, Руководство по обслуживанию

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 Product Features 8 
• For different outdoor units, the fan speeds are
different.
Case 2:
• The outdoor unit will be run at different fan speed
according to T4.
• For different outdoor units, the fan speeds are
different.
3.4.4 Condenser Temperature Protection
When the condenser temperature exceeds a configured
value, the compressor ceases operation.
3.4.5 Evaporator Temperature Protection
When evaporator temperature drops below a configured
value, the compressor and outdoor fan cease operation.
3.5 Heating Mode(Heat Pump Units)
3.5.1 Compressor Control
1) Reach the configured temperature
• If the following conditions are satisfied, the
compressor ceases operation.
• While calculated frequency(fb) is less than
minimum limit frequency(FminH).
• When protective time is more than or equal to ten
minutes.
• When T1 is higher than or equal to Tsc+
HDIFTEMP2.
Note: HDIFTEMP2 is EEPROM setting parameter. It is 2°C
usually.
• If one of the following conditions is satisfied, not
judge protective time.
• Compressor running frequency is more than test
frequency.
• When compressor running frequency is equal to
test frequency, T4 is more than 15°C or no T4 or T4
fault.
• Change setting temperature.
• Turbo or sleep function on/off.
2) When the current is higher than the predefined safe
value, surge protection is activated, causing the
compressor to cease operations.
3.5.2 Indoor Fan Control:
1) In heating mode, the indoor fan operates continuously.
The fan speed can be set to 1%-100%,or low,
medium, high and auto.
• . Anti-cold air function
• The indoor fan is controlled by the indoor
temperature T1 and indoor unit coil temperature
T2.
Case 1:
T1 ≥ 19°C ( 66.2°F ) Δ TE1=0
15°C ( 59°F )
≤
T1
<
19°C ( 66.2°F )
Δ
TE1=19°C - T1
( 34.2°F-T1 )
T1<15°C ( 59°F )
Δ
TE1=4°C ( 7.2°F )
Case 2:
Δ
TE1=0
2) Auto fan action in heating mode:
• Rise curve
• When T1-Tsc is higher than -1.5°C, fan speed
reduces to 80%;
• -When T1-Tsc is higher than 0°C, fan speed reduces
to 60%;
• -When T1-Tsc is higher than 0.5°C, fan speed
reduces to 40%;
• -When T1-Tsc is higher than 1°C, fan speed reduces
to 20%.
• Descent curve
• When T1-Tsc is lower than or equal to 0.5°C, fan
speed increases to 20%;
• -When T1-Tsc is lower than or equal to 0°C, fan
speed increases to 60%;
• -When T1-Tsc is lower than or equal to -1.5°C, fan
speed increases to 80%;
• -When T1-Tsc is lower than or equal to -3°C, fan
speed increases to 100%.