Units 18-30 Kw: Application 3 - Immergas MAGIS M4-30 Use And Installation

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8.6 UNITS 18-30 KW: APPLICATION 3.

Application for space heating and cooling with a room thermostat suitable for switching heating/cooling when connected
to the unit. Heating is supplied by the floor heating circuits and the fan coils. Cooling is only carried out by the fan coils.
Domestic hot water is supplied by the domestic hot water storage tank connected to the unit.
20
1
1.3
1.5
1.6
1.7
1.2
1.1
Code
1
Heat pump
1.1
Pressure gauge
1.2
Pressure relief valve
1.3
Expansion vessel
1.4
Plate heat exchanger
1.5
Air purge valve
1.6
Flow switch
1.7
P_i: Circulation pump inside the unit
2
Y-shaped filter
3
Shut-off valve
4
Control panel
S20
Room thermostat
6
Discharge valve
7
Filling valve
8
Balance tank
8.1
Air purge valve
8.2
Discharge valve
9
Expansion vessel
NOTE
The volume of the balance tank (8) should be greater than 40 L. The drain valve (6) should be installed in the lowest
position of the system. The pump P_o (10) must be controlled by the heat pump and connected to the corresponding
port of the unit (Chap. 9.6.7 Connection for other components/For the external circulation pump P_o).
21
18
2 3
6
7
1.4
8
Assembly unit
12.1
4
S20
12.1
9
8.1
10
19
8.2
Code
10
P_o: External circulation pump
11
Manifold/distributor
12
Domestic hot water tank
12.1
Air purge valve
12.2
Coil of heat exchanger
12.3
Booster heater
13
T5: DHW tank temperature sensor
14
Hot water cock
15
P_d: DHW pump
16
One-way valve
17
Bypass valve
18
SV1: 3-way valve
19
SV2: 3-way valve
20
Solar energy kit
21
P_s: Solar pump
FHL
Floor heating circuit
1... n
FCU
Fan coils
1... n
42
12
14
13
15
12.3
16
12.2
11
----
CVC 1
CVC 2
----
CVC n
11
----
FHL1
FHL2
----
FHLn
Assembly unit
17

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