M6G240F7-02 14/03/08 pag 16
DIAGRAM OF RECOMMENDED USE SIDE CONNECTION
Depending on the type of machine and the selected setup, some components may be integrated into the unit.
P
9
11
14
8
F
2
3
5
12
7
6
4
8
1
10
13
P
7
1. Charged system pressure switch
2. vent
3. pump
4. expansion tank
5. safety valve
6. flow switch
7. pressure switch / thermometer
8. filter
9. filling valve
10. antivibration joints
11. user side exchanger
12. Differential pressure switch
13. Discharge cock
14. inertial storage tank
The accumulation tank is necessary in the event of the following:
• the water in the system is very low
• the unit will not be used in a private house (in an industrial process or other)
WATER CIRCUIT EMPTYING
The unit is equipped with outlets for the pump emptying and storage.
Outlets are accessible from the rear side (left side in the figure).
Storage content: size 82÷122 80 litres
(optional) size 162÷302 130litres
RECOVERY EXCHANGER
OPTIONAL - The unit can be equipped with exchangers to
recover the condensation heat.
The recovery can be:
PARTIAL
• with 20% recovery
• The customer is responsible for the management of the
circulation pump, valves, thermostats, etc
The recovery input water must not be below 25°C, in the
event that, wrongful operations and breakages of the unit
can occur .
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 heaters) .
Water temperature can reach high temperatures (up to
100°C), therefore:
• 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.
WINTER CONDENSATION
When a heat pump is running it produces a considerable
amount of water due to the defrosting cycles of the external
coil.
The condensation must be eliminated in a manner to avoid
wetting pedestrian areas.
With extensive very cold outdoor temperatures,
condensation could freeze and block the flow, causing a
slow build-up of ice;
therefore special attention must be paid to eliminating
condensation, raising the unit off the ground and evaluating
whether antifreeze elements should be installed
For units with condensation trays, refer to the dimensional
diagrams to calculate the condensation discharge.
For units without condensation tray, evaluate the suitability
of placing a tray beneath the unit base.
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