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4.14
Removing the carrying straps
1.
After you have set up the product, cut off the carrying
straps and dispose of them in accordance with the
relevant regulations.
2.
Refit the front casing to the product.
5
Hydraulics installation
5.1
Carrying out the installation preparations
▶
Install the following components, preferably from the
manufacturer's accessories:
–
An expansion relief valve, a stopcock and a mano-
meter on the heating return
–
A domestic hot water safety assembly and a stopcock
on the cold water supply
–
A stopcock on the heating flow
▶
Check whether the volume of the installed expansion
vessel is sufficient for the heating system. If the volume
of the installed expansion vessel is insufficient, install an
additional expansion vessel, connected as close to the
product as possible, in the heating return.
▶
Flush the heating installation through thoroughly before
connecting the product in order to remove any residue
which could be deposited in the product and lead to dam-
age.
▶
Check whether, when you open the catches on the refri-
gerant pipes, you can hear a hissing sound (caused by
a factory-side excess pressure of nitrogen). If you do not
find any excess pressure, check all of the screwed con-
nections and pipes for leakages.
▶
For heating installations with solenoid valves or thermo-
statically controlled valves, install a bypass with bypass
valve in order to guarantee a volume flow of at least 40%.
216
5.2
Routing the condensate discharge hose
1
a
A
B
1
c
d
1.
Select one of the potential openings in the casing for
the condensate discharge hose (length 180 mm) of
the condensate tray (1) and route the condensate dis-
charge hose to this.
2.
If required, remove the back panel or one of the side
casings.
3.
Ensure that the drain hose for condensate and expan-
sion relief valve opens in a siphon, which prevents the
escape of ammonia and sulphurous gases.
Installation and maintenance instructions 8000017440_FT
b
B
A
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