4.3 How to Perform Pipework
Drain Raising Pipe
- Connect the drain hose to the drain raising pipes, and
- Connect the drain hose to the drain outlet on the indoor unit,
and tighten it with the clamp.
Install the drain raising pipes at a height
Install the drain raising pipes at a right angle to the indoor unit,
and no more than 300 mm/11.8 in. from the unit.
- To prevent air bubbles, install the drain hose level, or slightly
tilted up ('i,75 mm/3 in.).
- T he incline of
ain hose should be 75 mm/3 in. o
that the drain socket does not have to withstand additional force.
To ensure a downward slope of 1:100, install hanging
bars every 1m/3.3ft to 1.5 m/4.9ft.
When unifying multiple drain pipes, install the pipes asshown in
the figure below. Select converging drain pipes whose gauge is
suitable for the operating capacity of the un仆
T-joint converging d
Drain piping connections
Do not connect the drain piping directly to sewage
pipes that smell of ammonia. T he ammonia in the
sewage might enter the indoor unit through the drain
pipes, and corrode the heat exchanger.
Keep in mind that it will be the cause of the drain
pipe getting blocked if water collects on drain pipe.
4.4 Testing of Drain Piping
After the piping work is finished, check if drainage flows smoothy
Add approximately 1 L of water gradually through the air discharge
Method of adding water (see the figure below):
Plastic watering can(tube should be about 100 mm/3.9in long)
When electric wiring work is finished, check drainage flow during
, explained in "Test Operation" on page 16.
All field wiring and components must be installed by a licensed
electrician and must comply with relevant European and national
Use copper wire only
Follow the' Wiring diagram' attached to the unit body to wire the
outdoor unit, indoor units, and the remote controller.
A circuit breaker capable of shutting down
the entire system must be installed.
Note that the operation will restart automatically if the main
power supply is turned off and then turned back on again.
Be sure to ground the ai
Do not connect the ground wire to gas pipes, water pipes,
lightning rods, or telephone ground wires.
- Gas pipes: might cause explosions or fire if gas leaks
Water pipes:no grounding effect if hard vinyl piping is used.
Telephone ground wi
abnormally high electrical potential in the ground during
esh air intake (中65/2.6in)
power supply to
lightning rods: might cause
Frequency and volt
20 8 - 240V