Page
56
of 77
SK2019 FCSD(H)-V/P-ECM-001
Float switch is opened, when unit is turned off
•
If the float switch is opened, then the drain pump will work.
•
After the float switch is closed, the drain pump will run for an additional 5 minutes. If the float switch is opened for 10
minutes continuously, then the system reports an error.
Electric Heater Safety Switch
Before the electrical heater is turned on, the EH safety switch must be closed and EC motor RPM must be more than
Modbus 310000 setting.
When electrical heater is ON, electrical heater safety switch is opened for ≥ 1 second or EC motor RPM is lower than
Modbus 310000 setting, EH will be turned off immediately and report an error and fan speed is changed to high speed.
Once the contact is returned to the closed ≥ 180 seconds, reset the error and the heater will start again.
When the EH safety switch is opened ≥ 3 times within 60 minutes the heater is not allowed to start anymore.
Turn off the unit to reset the fault, provided that the switch has returned to the closed position.
Low Temperature Protection of Indoor Coil in Winter
This is frost protection for when the unit is off to prevent water in the coil and room from freezing.
If Unit with SW2=0 (2-pipe system), is in Standby Mode
If Tr
≦
2 ºC for 2 minutes
1.
MTV1 is turned ON,
2.
AUX1 is closed,
3.
DA2 is 10VDC,
4.
If Ti1 < 5ºC for 2 minutes EH (if present) is switched on
5.
Indoor fan is turned on at low speed.
If Tr
≧
5ºC for 2 minutes
1.
MTV1 is turned OFF,
2.
AUX1 is open,
3.
DA2 is 0 Vdc,
4.
Electric Heater is turned Off
5.
Indoor fan Switched OFF.
If Unit with SW2=1(4-pipe system), is in Standby Mode
If Tr
≦
2 ºC for 2 minutes
1. MTV2 is turned ON,
2. AUX1 is closed,
3. DA3 is 10Vdc
4. If Ti2 < 5ºC for 2 minutes EH (if present) is switched on
5. Indoor fan is turned on at low speed.
If Tr
≧
5ºC for 2 minutes
1.
MTV2 is OFF,
2.
AUX1 is open,
3.
DA3 is 0Vdc,
4.
Electric Heater is turned Off
5.
Indoor fan Switched OFF.
Summary of Contents for FDLA-09
Page 1: ...SK2018 GLOBAL FDLA V P AC 001 FDLA V P AC MOTOR...
Page 27: ...Page 26 of 51 SK2018 GLOBAL FDLA V P AC 001 Configuration Settings...
Page 53: ...FDHD V P AC MOTOR...
Page 69: ...B 1 4 4 Electrical connections T Configuration standard version...
Page 74: ...Wiring Diagram D 2 SK NCPDWH 001b S Configuration Full Control PCB...
Page 76: ...Configuration Settings D 3...
Page 111: ......
Page 112: ...SK2019 FCSD H V P ECM 001 FCSD H V P ECM MOTOR...
Page 190: ...SK2019 FCSD H V P ECM 001...
Page 191: ...Page 1 of 59 SK2015 FMCD V EC 001 FMCD ECM MOTOR...
Page 210: ...Page 20 of 59 SK2015 SWC V EC 001 D 1 3 Wiring Diagram SK NCSWC 001...
Page 233: ...Page 43 of 59 SK2015 SWC V EC 001 D 4 2 Wiring diagram SK NCSWC 002...
Page 248: ...Page 58 of 59 SK2015 SWC V EC 001 Troubleshooting Guide E 4...
Page 249: ...Page 59 of 59 SK2015 SWC V EC 001...
Page 250: ...FSTD C V P ECM MOTOR...
Page 256: ...Page 7 of 73 SK2015 FSTDC V P ECM 001 A 2 Unit Appearance FSTDC VAR FSTDC HAR FSTD...
