Midea MHC-V4W/D2N8-B Engineering Data

M thermal Mono
202005 11
Part 1 - General Information
5.2 Application 2
ROOM THERMOSTAT Control for Space heating or cooling need to be set on the user interface. It can be set in three ways:
MODE SET/ONE ZONE/DOUBLE ZONE. The indoor unit can be connected to a high voltage room thermostat and a low voltage
room thermostat. A hydraulic adapter box can also be connected. Another six thermostats can be connected to the hydraulic
adapter box. Please refer to “ROOM THERMOSTAT in installation manual” for wiring.
5.2.1 One zone control
Figure 1-5.2: Application 2-One zone control
Legend
1
Outdoor unit
17
Shut-off valve (Field supply)
3
User interface
18
Filling valve (Field supply)
5
Balance tank (Field supply)
19
Drainage valve (Field supply)
5.1
Automatic bleed valve
23
Collector/distributor (Field supply)
5.2
Drainage valve
25
Hydraulic adapter box (Optional)
6
P_o: Zone A circulation pump (Field supply)
RT 1…7
Low voltage room thermostat (Field supply)
13
Expansion vessel (Field supply)
RT8
High voltage room thermostat (Field supply )
15
Filter (Accessory)
FHL1…n
Floor heating loop (Field supply)
Notes:
1. The example is just for application illustration; please confirm the exact installation method according to the installation manual.
Space heating
One zone control: the unit ON/OFF is controlled by the room thermostat, cooling or heating mode and outlet
water temperature is set on the user interface. System is ON when any “HL” of all the thermostats closes. When
all “HL” open, system turns OFF.
The circulation pumps operation
When the system is ON, which means any “HL” of all the thermostats closes, P_o(6) starts running; When the
system is OFF, which means all “HL” close, P_o (6) stops running.
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Midea MHC-V4W/D2N8-B Specifications

General

Brand	Midea
Model	MHC-V4W/D2N8-B
Category	Air Conditioner
Language	English