Midea M thermal Mono Series Engineering Data page 14

5.5 AHS provides heat for space heating and DHW
Space heating application by either the unit or by AHS connected in the system. Bivalent operation is possible for both
space heating operation and domestic water heating operation. If AHS is also providing heat for domestic hot water, AHS
can be integrated in the piping work. In this condition, the unit can sent ON/OFF signal to AHS in heating mode, but AHS
control itself in DHW mode.
Figure 1-5.5: AHS provides heat for space heating and DHW
Table 1-5.5: AHS provides heat for space heating and DHW
Legend
1 Outdoor unit
1.1 Manometer
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-shape filter
3 Stop valve (field supplied)
4 Wired controller
5 Stop valve (field supplied)
6 Drain valve (field supplied)
7 Fill valve (field supplied)
8 Balance tank (field supplied)
8.1 Air purge valve
Notes:
1. The example is just for application illustration; please confirm the exact installation method according to the installation manual.
202005
8.2
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12.2
12.3
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FHL 1...n
Midea CAC Confidential
M thermal Mono
Drain valve
Expansion vessel (field supplied)
P_o: Outside circulation pump (field supplied)
Collector / Distributor (field supplied)
Domestic hot water tank (field supplied)
Air purge valve
Heat exchanger coil
Booster heater
T5: Temperature sensor
Hot water tap(field supplied)
P_d: Cycle hot water pump(field supplied)
One way valve(field supplied)
Additional heat source(field supplied)
SV1: 3-way valve (field supplied)
T1: Outlet water temperature sensor(field supplied)
Floor heating loop (field supplied)
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