Midea MHC - V18W/D2RN8 Engineering Data

M thermal Mono
16 202005
Midea M thermal Mono Engineering Data Book
5.8 Dual setpoint function application without thermostats
Heating is provided through floor heating loops and fan coil units. The floor heating loops and fan coil units require
different operating water temperatures. The floor heating loops require a lower water temperature in heating mode
compared to fan coil units. To achieve these two set points, a mixing station is used to adapt the water temperature
according to requirements of the floor heating loops. The fan coil units are directly connected to the unit water circuit and
the floor heating loops are after the mixing station. The mixing station is controlled by the unit (or field supply, controls by
itself).
Figure 1-5.8: Dual setpoint function application without thermostats
Table 1-5.8: Dual setpoint function application without thermostats
Legend
1
Outdoor unit
8
Balance tank (field supplied)
1.1
Manometer
8.1
Air purge valve
1.2
Pressure relief valve
8.2
Drain valve
1.3
Expansion vessel
9
Expansion vessel (field supplied)
1.4
Plate heat exchanger
10
P_o: Outside circulation pump (field supplied)
1.5
Air purge valve
11
Collector / Distributor (field supplied)
1.6
Flow switch
12
Bypass valve (field supplied)
1.7
P_i: Circulation pump inside the unit
13
Mixing station(field supplied)
2
Y-shape filter
13.1
P_c: zone 2 pump (field supplied)
3
Stop valve (field supplied)
13.2
SV3: 3-way valve (field supplied)
4
Wired controller
14
Tw2: Zone 2 water flow temp.(field supplied)
5
Stop valve (field supplied)
FHL 1...n
Floor heating loop (field supplied)
6
Drain valve(field supplied)
FCU 1...n
Fan coil units (field supplied)
7
Fill valve (field supplied)
Notes:
1. The example is just for application illustration; please confirm the exact installation method according to the installation manual.
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Midea MHC - V18W/D2RN8 Specifications

General

Brand	Midea
Model	MHC - V18W/D2RN8
Category	Air Conditioner
Language	English