Immergas MAGIS M4-30 Use And Installation page 45

NOTE
described in Chap. 9.7.6 Connection for other components/For the room thermostat, and the thermostat that is con-
nected to input "C" must be positioned in the zone where the oor heating circuits are installed (zone B), the other
connected to input "H" must be positioned in the zone where the fan coils are installed (zone A).
NOTE
tion of the water system.
corresponding port of the unit (Chap. 9.7.6 Connection for other components/For the external circulation pump P_o
and the feed pump P_c).
• e advantage of the double setpoint control is that the heat pump can operate at the lowest required water ow tem-
perature when there is only the oor heating demand. Higher water ow temperatures are only required when the fan
coils are operating. is makes the heat pump more e cient.
Operation of the pump and space heating.
e pump (1.7) and (10) will operate when there is a heating demand from A and/or B.
when there is a heating demand from B.
e water outlet temperature depends on which room thermostat demands heating. When the room temperature of both
zones is higher than the setpoint of the thermostat, the compressor and circulation pumps stop.
NOTE
ROOM THERMOSTAT
• e installer is in charge of making sure that no unwanted situations occur (for example high-temperature water go-
ing to the oor heating circuits, etc.).
• e double setpoint control gives you the option of using only two setpoints.
• When only zone A requires heating, zone B will be fed with water at a temperature equal to the rst setpoint.
could lead to unwanted heating in zone B.
• When only zone B requires heating, the mixing kit will be fed with water at a temperature equal to the second setpoint.
Depending on the mixing kit control, the oor heating circuit can still receive water at a temperature equal to the
setpoint of the mixing kit.
• Keep in mind that the actual temperature of the water passing through the oor heating circuits depends on the control
and setting of the mixing kit.
e pump (10) and pump (23.1) must be controlled by the heat pump and connected to the
e heat pump will start running to reach the nominal water ow temperature.
e pump (23.1) will only operate
" as
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is