Mitsubishi SRK25ZSP-W User Manual

'18 • SRK-SM-259
-
9
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'09•SRK-DB-087D
(c) Frost prevention control
(i) Operating conditions
(ii) Detail of anti-frost operation
(iii) Reset conditions
Indoor heat exchanger
temperature (ºC)
2.55 8
0 rps
Lower
limit
speed
compressor
speed
(c) Cooling overload protective control
(i) Operating conditions:
(ii) Detail of operation
(iii) Reset conditions:
(d) Cooling high pressure control
(i) Purpose:
(ii) Detector:
(iii) Detail of operation:
53
58
63
Outdoor heat exchanger temperature (°C)
6rps
(1)
6rps
(1)
0rps
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
lower limit
speed 30 (model SRK50 : 29) rps
(Example) Fuzzy
Item
SRK20~35ZJ-S SRK50ZJ-S
Outdoor air temperature
Lower limit speed
Model
1)
2)
1)
2)
1)
2)
1)
2)
more, or 47ºC or more (model SRK50 : 41ºC or more) with the compressor running, the lower
limit
41°C or more
29 rps
The lower limit of compressor command speed is set to 30 or 40 (model SRK50 : 29) rps and even if the calculated
result becomes lower than that after fuzzy calculation, the speed is kept to 30 or 40 (model SRK50 : 29) rps. Howev-
er, when the thermo OFF, the speed is reduced to 0 rps.
Indoor heat exchanger
temperature
Item
5°C or lower 2.5°C or lower
Lower limit of compressor speed
Indoor fan
Outdoor fan
4-way valve
compressor
-
-
22rps (SRK45 : 23 rps)
(d) Cooling overload protective control
(i) Operating conditions
When the outdoor air temperature (TH2) has become continuously for 30 seconds at 41ºC or more, or 47ºC or more
with the compressor running, the lower limit speed of compressor is brought up.
(ii) Detail of operation
1) The outdoor fan is stepped up by 3 speed step. (Upper limit; 8th speed.)
2) The lower limit of compressor speed is set to 30 or 45(model SRK45 : 27 or 35) rps. However, when the thermo
OFF, the speed is reduced to 0 rps.
(iii) Reset conditions
When either of the following condition is satised.
1) The outdoor air temperature is lower than 40ºC.
2) The compressor speed is 0 rps.
Model
Item
SRK25, 35ZSP-W SRK45ZSP-W
Outdoor air temperature
41°C or more 47°C or more 41°C or more 47°C or more
Lower limit speed
30 rps 45 rps 27 rps 35 rps
(e) Cooling high pressure control
(i) Purpose
Prevents anomalous high pressure operation during cooling.
(ii) Detector
Outdoor heat exchanger sensor (TH1)
(iii) Detail of operation
A
B
C
Outdoor heat exchanger temperature(°C)
8rps
(1)
8rps
(1)
0rps
After lapse of 20 sec. or over
(3)
After lapse of 20 sec. or over
(3)
After lapse of 20 sec. or over
(3)
(Example) Fuzzy

Mitsubishi SRK25ZSP-W Specifications

General

Brand	Mitsubishi
Model	SRK25ZSP-W
Category	Air Conditioner
Language	English