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4 - WATER CONNECTIONS
4.8 PARTIAL ENERGY RECOVERY
A configuration which enables the production of hot water free
-of-charge while operating in the cooling mode.
The partial recovery device is considered to be operating
when it is powered by the water flow which is to be heated.
The customer is responsible for the management of the
circulation pump, valves, thermostats, etc.
When the temperature of the water to be heated is particularly
low, it is wise to insert a flow control valve into the system
hydraulic 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.
Water connections must be performed carefully as for the
evaporator (filter, circuit washing, etc).
Perform all necessary interventions to avoid the RISK OF
FREEZING (tubes insulation, emptying of circuit, addition of
glycol, anti-freeze resistances).
Water temperature can reach high temperatures (up to 100°C)
Avoid the RISK OF BURNS by adopting the necessary
precautions (insulation of tubes, temperature detecting station
on water if the sanitary use is foreseen, etc.)
Install safety valves and specifically dimensioned expansion
tanks in the hydraulic circuit.
VM - adjustment charged to the customer
D - Partial recovery device
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