Refrigerant Pipe Connection; Liquid Pipe; Condensate Drain Pipe Connection - DeLonghi CLIMAVENETA HED HCAT 0011 SE Installation And Service Manual

REFRIGERANT PIPE CONNECTION

REFRIGERANT PIPES
Sizing of the refrigerant pipes connecting the external con-
denser units and internal evaporator units is vital to guar-
antee correct operation. The operation must be carried
out with care by specialised personnel only.
INTAKE/DISCHARGE PIPES
Create the coupling flange directly on the pipe; this means
less welding and therefore fewer impurities inside the pip-
ing. All pipes must be perfectly clean (clean piping with ni-
trogen or dry air before connecting to the two units) and
free from moisture to allow efficient venting.

CONDENSATE DRAIN PIPE CONNECTION

This operation must be carried out with particular care.
The unit is fitted with a gravity drainage condensate drain
pan with an open connection on the back of the unit. The
pipe should have an internal diameter of at least 16 mm.
The drain connection has an external diameter of 18 mm.
Per the sequence follow to the following instructions: (see
figure)
1. Connect the condensate drain hose to the pan outlet
with a hose clip.
2. Make sure the drain pipe has a slope of at least 2 cm/m
without obstructions or bottlenecks.
3. Fit a siphon. By eliminating the pressure drop caused by
HED-HCAT SE FREE COOLING

LIQUID PIPE

To connect, proceed as follows:
1. Connect the pipe to the liquid union coupling using
two spanners.
2. Insulate the outside of the pipe and the coupling.
Remember to add R407c refrigerant gas if the pip-
ing is more than 5m long.
0011-0021-0041
Liquid connection
Gas connection
Condensing drain
the fan, this prevents air being sucked up by the drain
hose.
4. Connect the condensate drain pipe to a rainwater
drainage system.
Do not connect to the sewage system as odours may
be sucked up if the water in the siphon evaporates.
5. After connecting, check correct drainage of the con-
densate by pouring water into the pan.
I A
58 gr/m
7
ENGLISH