Daikin R407C PLUS, Service Manual

Page: 71 / 267

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