Service manual

16-50
APPENDIX A
SM DLF 1-A.1 GB
Check list before operation
CHECK THE DRAINAGE EVALUATION OF THE PERFORMANCE
Pour water into the drain tray-styrofoam.
Ensure that water flows out from drain
hose of the indoor unit.
Operate the unit at cooling mode and high
fan speed for fifteen minutes or more.
Measure the temperature of the intake and
discharge air.
Ensure the difference between the intake
temperature and the discharge is more than
8 ºC
CHECK ITEMS
Is there any gas leakage at flare nut
connections?
Is the indoor unit properly mounted to
the ceiling?
Has the heat insulation been carried
out at flare nut connection?
Is the power supply voltage complied
with rated value?
Is the connecting cable being fixed to
terminal board firmly?
Is there any abnormal sound?
Is the connecting cable being clamped
firmly?
Is the cooling operation normal?
Is the drainage OK?
(Refer to "Check the drainage"
section)
Is the thermostat operation normal?
Is the earth wire connection properly
done?
Is the remote control's LCD operation
normal?
Connection of several
Displays in parallel units
1. Main Control Board on Indoor Unit
2. Distribution Board, Cat N. 402729
3. Communication cable Cat. N. 402730
4. Display Control Unit Cat. N. 402713
CONTENT