CLIVET WSA-XEE 182 - Page 13

M02S40N16-03 WSA-XEE 182-352 13
4.7 Hydraulic connections
UNIT
A
filettare – to threadsaldare – to weld
A1
A2
impianto - system
A + B : fornito da Clivet - Clivet supplied
o - or
B
A
Do not weld the system pipe with the Victaulic connection joint attached.
The rubber gasket might be irreparably damaged.
4.8 Water lter
Use lter with mesh pitch of 1,6 mm
It must be installed immediately in the water input of the unit, in a position that is easily accessible for cleaning.
The lter never should be removed, this operation invalidates the guaranty.
4.9 Flow Switch
The ow switch must be present to ensure shutdown of the unit if water is not circulating.
It has to be installed in a duct rectilinear part, not in proximity of curves that cause turbulences.
A. minimum distance
4.10 Operation sequence
Close all vent valves in the high points of the unit hydraulic circuit
Close all drain valves in the low points of the unit hydraulic circuit:
•
Heat exchangers
•
Pumps
•
collectors
•
storage tank
•
free-cooling coil
1. Carefully wash the system with clean water: ll and drain the system several times.
2. Apply additives to prevent corrosion, fouling, formation of mud and algae.
3. Fill the plant
4. Execute leakage test.
5. Isolate the pipes to avoid heat dispersions and formation of condensate.
6. Leave various point of service free (wells, vent-holes etc).
Neglecting the washing will lead to several lter cleaning interventions and at worst cases can cause damages to the exchangers and the
other parts.