Si33-105
Operation Flowcharts
Troubleshooting R407C PLUS Series Heat Recovery System
141
Programme dry operation
Programme dry display
Thermostat status?
Fan M1F : 6 minutes stopped
then L operation
Electronic expansion valve Y1E
closed
Drain-up kit M1P : Off after 5
minutes residual operation
Fan M1F : operation: L
Electronic expansion valve Y1E
degree of super heat control
A
(Option)
H
7
H
8
(VF023)
ON
OFF
"
7
Programme dry display
Does not display preset temperature and air flow settings of the controller.
"
8
Thermostat status
Preset temperature during programme dry operation
Fan in operation
Swing flap
Air flow direction setting
Swing flap?
Fan MF: Operating at set air flow
rate
Electronic expansion valve Y1E
closed
Drain-up kit (M1P): OFF
Auxiliary electric heater (K1R): OFF
Humidifier (Hu): OFF
A
H
10
H
11
H
9
No
YES
Option
(VF024)
"
9
Fan operation
When fan operation has been selected using the remote controller, operation is turned
OFF by thermostat when temperature control operation has been selected.
"
10
Air flow direction setting
If fan operation is selected with the remote controller, air discharge is 100% horizontal
during heating.
Summary of Contents for R407C PLUS
Page 1: ...System R407C PLUS Series Heat Recovery System Si33 105 Service Manual ...
Page 11: ...Introduction Si33 105 x ...
Page 41: ...Specifications Si33 105 30 Specifications R407C PLUS Series Heat Recovery System ...
Page 147: ...Test Operation Si33 105 136 Test Operation R407C PLUS Series Heat Recovery System ...
Page 263: ...Si33 105 iv Index ...