Outline of Control (Outdoor Unit) < Symbols using in this manual >
Equalizing Startup Control
Step No.
INV
SVP
Outdoor
EV
Outdoor
fan
20S1
20S2
20S3
SVS
(Aux.
condensor)
Indoor
EV
(Heating unit)
Indoor
fan
(Heating unit)
Indoor EV
(Cooling thermostat ON unit)
(Cooling thermostat OFF unit)
(Fan unit)
Indoor fan
(Cooling unit,
fan mode unit
no instruction)
BS unit
Solenoid valve
Thermostat ON INV charging
60
0
1
0 pls
OFF
Holding previous mode
Holding previous mode
Holding previous mode
0 pls instruction
0 pls instruction
All solenoid valves = OFF
Max. 15 min (including 5 min of restarting
standby during unit stops)
When HP-LP<0.02 MPa, compressor turns on.
Equalization prior to startup
40s
End the startup
control
2
3
4
5
0
41Hz
1
0
Full operation normally
2
Provides fan control for high pressure keeping.
Changeover
Changeover
OFF
Changeover
When Pc>2.25 MPa,
compressor turns on.
Cancellation the
instruction with
300 pls
Cancellation the
instruction with
Fan = OFF
instruction
Cancellation the
0
6 200 pls
instruction with
instruction
300 pls
Thermostat OFF, fan mode unit
instruction cancellation
According to operation mode
1min
OR
30s 10s 10s
Pe<0.03MPa
BS unit solenoid valve changeover (Max. 16 sec)
Function R407C PLUS Series Heat Recovery System
6
According to
protection control
0
5
According to
operation mode
According to
operation mode
According to
operation mode
According to
operation mode
0
SC control
3
0
0
7
3
0
SH control
4
30s
Si33-105
(V2568)
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