Application - Airwell Wellea Split A R32 Installation Manual

7.2 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. Please refer to 8.8.6/6) "For room thermostat" for wiring.
(see 9.5.6 "ROOM THERMOSTAT")
7.2.1 One zone control
Outdoor
1
Code Assembly unit
1 Outdoor unit
2 Indoor unit
3 User interface
5 Balance tank (Field supply)
5.1 Automatic air purge valve
5.2 Drainage valve
6 P_o: Outside circulation pump (Field
supply)
13 Expansion vessel (Field supply)
Space heating
One zone control: the unit ON/OFF is controlled by the room thermostat, cooling or heating mode and outlet
water temperature are 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.
2
3
2.11
2.1
2.3 2.1
RT1
2.10
2.8 2.7
17 17
15
19
18
19
Modbus
21
Indoor
13
5.1
6
5
5.2
Code Assembly unit
15 Filter (Accessory)
17 Shut-off valve (Field supply)
18 Filling valve (Field supply)
19 Drainage valve (Field supply)
23 Collector/distributor (Field supply)
RT... Low voltage room thermostat (Field supply)
FHL
Floor heating loop (Field supply)
1...n
23
FHL1 FHL2 FHLn