Technical data

15EN 10/2010 i-KI MTD / i-KIR MTD
Condensate drain
The unit is fitted with condensate pan; this must be connect-
ed to a drain system to take away the water that forms, see
the drawing.
In heating mode the unit produces a significant quantity of
condensate, which must be suitably drained.
Proceed as follows:
• Connect the unit condensate drain
• Make sure the drain hose has a incline of at least 2 cm/m,
without obstructions or choking.
• Connect the condensate drain hose to a rainwater drain.
Do not connect to the sewage system as odours may be
sucked up if the water in the drain trap evaporates.
• After connecting, check correct drainage of the conden-
sate by pouring water into the pan.
• If necessary, suitably insulate the condensate drain hose.
• Condensate drainage must not cause problems to objects
or people.
If the outside air temperature is less than 0°C, the conden-
sate drained from the collection pan may freeze.
The unit must be supported on a suitable structure or brack-
ets to keep it off the ground, with a frost protection heater fit-
ted on the drain line.
WATER CONNECTIONS
I A
Condensate
drain elbow fitting
Hose
FILLING THE SYSTEM
- Before starting to fill, place the unit mains
switch QF1 in the OFF position.
- Before filling, check that the system drain
valve is closed.
- Open all system and terminal air vents.
- Open system shut off valves.
- Start filling by slowly opening the system water fill valve
outside the unit.
- When water begins to leak out of the terminal air vent
valves, close them and continue filling until the pressure
gauge indicates a pressure of 1.5 bar.
The system must be filled to a pressure of between 1
and 2 bars.
It is recommended that this operation be repeated after
the unit has been operating for a number of hours. The
pressure in the system should be checked regularly and
if it drops below 1 bar, the water content should be
topped-up.
Check the tightness of the joints.
ON
OFF
EMPTYING THE SYSTEM
- Before starting to empty, place switch QF1
in the “OFF” position
- Make sure the system fill/top-up water
valve is closed.
- Open the drain valve outside the unit and
all the installation and terminal air vent
valves..
If the fluid in the circuit contains antifreeze, it should
not be allowed to drain freely, as it is pollutant.
It should be collected for possible reuse.
When draining after heat pump operation, take care as
the water may be hot (up to 50°).
ON
OFF