Mitsubishi Heavy Industries SRRM40HENG-L, Руководство пользователя

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SCM-HG (4 room)
134
(b) Mode switching
Within the selected mode, the unit operates using the values shown below which were obtained by multiplying a conversion
coefficient to the indoor unit demand frequency.
Note (1) The values in parenthesis ( ) indicate SRRM40HENG-L.
(c) Operation of Major Functional Components in Heating Mode
Model (Indoor)
Operation Mode
Automatic
High
Medium
Low
Hi power
Econo
28
28
28
28
40
28
28
28
28
28
34
28
28 ~ 40
28 ~ 40
28
28
40
28
28 ~ 42
28 ~ 42
28 ~ 30
28
40
28
28 ~ 46
28 ~ 46
28 ~ 42 (28 ~ 38)
28
42 (46)
28
22 25 28 32 40
28 ~ 80
28 ~ 80
28 ~ 61
34
80
28
50
Functional
components
Operation
Demand frequency
Indoor
unit fan
Compressor
Outdoor unit fan
Solenoid Valve
(SVA, B, C, D)
Electronic
expansion valve
See preceding table
ON
According to mode switching
According to demand frequency
According to decision frequency
ON
According to decision
frequency
0
(All indoor units)
OFF
According to stop mode
Hot Keep
Hot Keep
OFF
According to stop mode
0
(Thermostat off units)
ON
75 Pulses
(Thermostat off units)
According to mode switching
According to demand frequency
According to decision frequency
OFF
(Thermostat off units)
All closed
(Fan, stop, abnormal stop units)
OFF
(Fan, stop, abnormal stop units)
0
(Fan, stop, abnormal stop units)
0
(All units)
ON OFF
Hot Keep
Hot Keep
OFF
According to stop mode
According to stop mode
Heating
Thermostat OFF
(All indoor units) Thermostat OFF
(Some of indoor units)
Fan, stop, abnormal stop
(Some of indoor units)
Failure
(Outdoor Unit)
Fixed
Automatic
(d) Hot Standby (When any of the following conditions is met, Hot Standby operation is activated.)
(i) Operating conditions
1
The power supply is ON.
2
Under the following conditions.
a When the temperature detected by the outdoor air temperature sensor is at the ON
level as shown in the figure, and when 30 continuous minutes have passed since
the decision frequency has become 0 Hz after cooling or heating has been stopped.
b
When 20 minutes have passed since the power was turned on and the outdoor air temperature thermistor is in the
ON range.
(ii) Function
Low voltage is applied from the inverter to the compressor to preheat it. This melts and vaporizes refrigerant that has frozen
inside the freezer oil, making it easier for the refrigerant to circulate when the heating operation is started. This makes the
start of the heating operation faster.
(iii) Finishing conditions
1
When Hot Standby has been activated after the power has been turned on.
a
When 20 minutes have passed since the power was turned on and the outdoor air temperature thermistor is in the
OFF range.
b
When the operating mode has been switched from stop to heating or cooling.
2
When operating under item (i)
2
.
a When the outdoor air temperature thermistor is in the OFF range.
b
When the operating mode has been switched from stop to heating or cooling.
Outdoor air temperature
22
°
C 24
°
C
ON
OFF