HTW Ix40 Serie Manual De Instalación página 89

4.3 Testing of drain piping
- Check whether the drainpipe is unhindered.
- New built house should have this test done before paving the ceiling.
The unit with pump.
1. Remove the test cover, and stow about 2000ml water to the
water pan.
CLOSED
Test cap
2. Operate the air conditioner in "COOLING" mode. The sound
of the drain pump shall be heard. Check whether the water is
discharged well (1 min lag is possible, according to the length
of the drain pipe), and check whether the water leaks from the
joints.
3. Power off the air conditioner and recover the cap.
The unit without pump.
Stow tube
- Stow 2000ml water to the water pan through the stow tube,check whether
the drainpipe is unhindered.
OPEN
Stow tube
19
4.4 Freshair duct installation
Dimension :
Duct joint for fresh air
12K~24K
90mm
80mm
Motor and drain pump maintenance
(Take rear ventilated as example)
Motor maintain:
1. Take off the ventilated panel.
2. Take off the blower housing.
3. Take off the motor.
Pump maintainance:
1. Screw off four screws from drain pump.
2. Plug off pump power supply and water level switch cable.
3. Take off pump.
MODEL( Btu/h )
30K~55K
125mm
Mofor
Blower housing
Ventilated panel
Pump
160mm