Euroclima ZHK, Руководство пользователя

Страница: 69 / 142

Instruction Manual ZHK
68/140 V07-21.0
6 Installation
6.1 Heat exchanger connection
6.1.1 General notes
Before connecting the heat exchanger, the piping system must be rinsed thoroughly.
NOTICE!
An absolutely stress-free connection has to be ensured and the transmission of
vibrations and longitudinal expansion between the device and the piping system
must be safely prevented.
NOTICE!
In order to avoid corrosion due to water, the requirements regarding water qual-
ity, professional installation, commissioning and maintenance of VDI 2035 sheet
2 have to be complied.
Connection pipes with thread:
To prevent damage of the heat exchanger connection, it is necessary to hold against with a pipe
wrench during the tightening process (
Figure 158
).
Figure 158:
Holding against with a pipe wrench
Recommended sealing material for threaded sleeves:
-
Steam heat exchanger, use special sealant
-
Water / glycol heat exchangers, use Teflon tape.
In these cases, hemp cannot be used as sealing material!
Connection pipes without thread:
If the connection pipes are executed without threads, then a mechanical, force-fitting connection
(STRAUB coupling) is recommended (
Figure 161
). This coupling could be included optionally in
the scope of delivery from EUROCLIMA, if not, then it must be provided on site. In order to avoid
damage of the copper pipe of the heat exchanger due to mechanical force, a ring needs to be in-
serted to reinforce the copper pipe (
Figure 159
and
Figure 160
).