4.11 Water filter
Use filter with mesh pitch:
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 filter never should be removed, this operation invalidates the guaranty.
4.12 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
1. Carefully wash the system with clean water: fill 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 filter cleaning interventions and at worst cases can cause damages to the exchangers and the
other parts.
4.13 Partial energy recovery
Option
A configuration which enables the production of hot water free-of-charge while operating in the cooling mode, thanks to the partial recovery
of condensation heat that would otherwise be rejected to the external heat source.
The maximum capacity available from the partial recovery is equal to the 15% of the rejected heating capacity (cooling ca compressor
power input)
The recovery exchanger must be always maintained full of water
The lack of water amplifies the noise generated by the operation
When the temperature of the water to be heated is particularly low, it is wise to insert a flow-rate control valve into the system water circuit,
in order to maintain the temperature at the recovery output at above 35°C and thus avoid the condensation of the refrigerant into the partial
energy recovery device.
UNIT
QAB
QB
QB
QA
QAB
V
M
OUT 2 1/2"
IN 2 1/2"
120.4 - 240.4
519
1541
13
Summary of Contents for WSH-XSC3
Page 45: ...8 14 Compressor replacement 45...
Page 46: ...8 15 Exchanger replacement 8 16 Pump replacement 46...
Page 47: ...9 Accessories 9 1 Antivibration 47...
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