Units 18-30 Kw: Application 4 - Immergas MAGIS M4-30 Use And Installation

8.7 UNITS 18-30 KW: APPLICATION 4.

Application with double setpoint function with two room thermostats, connected to the unit.
• Space heating with application of two room thermostats by means of floor heating and fan coils. The floor heating circuits
and the fan coils require different operating water temperatures.
• The floor heating circuits require a lower water temperature in heating mode than fan coils. A mixing kit is used to reach
these two set points to adapt the water temperature based on the requirements of the floor heating circuits. The fan coils
are connected directly to the water circuit of the unit and the floor heating circuits are located after the mixing kit. The
mixing kit is controlled by the unit.
• The installer is in charge of operation and configuration of the water circuit on the field.
• We only offer a double setpoint control function. This function can generate two setpoints. Depending on the required
water temperature (floor heating and/or fan coils are necessary). For further details, see Chap. 10.5 Settings on field/
ROOM THERMOSTAT
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
S20-1 Zone 1 room thermostat
S20-2 Zone 2 room thermostat
6 Discharge valve
2 3
6 7
1.4
Assembly unit
4
S20-1
S20-2
9
10
8.1
23.1
24
23.2
8.2
8
23
Code
7 Filling valve
8 Balance tank
8.1 Air purge valve
8.2 Discharge valve
9 Expansion vessel
10 P_o: External circulation pump
11 Manifold/distributor
17 Bypass valve
23 Mixing kit
23.1 P_c: Zone 2 pump
23.2 SV3: 3-way valve
24 Tw2: Zone 2 water flow temp.(optional)
FHL
Floor heating circuit
1... n
FCU
Fan coils
1... n
44
A
11
FCU1 FCU2 FCUn
B
11
FHL1 FHL2 FHLn
Assembly unit
17