HTM HTW-V5WD2N8 Manual De Usuario E Instalacion página 118

1
1.7
1.6
1.5
1.8
1.3
1.1
1.4 1.2
2 3
Coding Assembly unit
1 Outdoor unit
1.1 Manometer
Pressure relief valve
1.2
Expansion vessel
1.3
Plate heat exchanger
1.4
1.5 Backup heater（Customized model）
Air purge valve
1.6
1.7 Flow switch
1.8 P_i: Circulation pump in the unit
Y-shape filter
2
3 Stop valve (field supply)
4 Wired controller
Drain valve (field supply)
6
The volume of balance tank(8) should be greater than 40L(for 5~9kW unit, greater than 20L) The drain valve (6)
should be installed at the lowest positon of the system. An independent backup heater can be selected and installed
in the door. pump(10) and pump(23.1) should be controlled by outdoor unit and connect to corresponding port in the
outdoor unit(refer to 9.7.6 Connection for other components/For outside circulation pump P_o and For tank loop
pump P_d and mix pump P_c).
The advantage of the dual set point control is that the heat pump will/can operate at the lowest required water flow
temperature when only floor heating is required. Higher water flow temperatures are only required in case fan coil
units are operating. This results in better heat pump performance.
Pump operation and space heating
The pump (1.8) and (10) will operate when there is request for heating from A and/or B. Pump (23.1) will operate only when
there is request for heating from B. The outdoor unit will start operating to achieve the target water flow temperature. The target
water leaving temperature depends on which room thermostat is requesting heating.
When the room temperature of both zones is above the thermostat set point, the outdoor unit and pump will stop operating.
4
5A
T
5B
T
9
19
8.1
10
M
8.2
6 7
8
Coding
Fill valve (field supply)
7
Balance tank (field supply)
8
Air purge valve
8.1
8.2
Drain valve
Expansion vessel (field supply)
9
P_o: Outside circulation pump (field supply)
10
11 Collector (field supply)
Bypass valve (field supply)
17
19 SV2:2-way valve (field supply)
Mixing station (field supply)
23
P_c: mixing pump
23.1
Floor heating loop (field supply)
FHL 1...n
FCU 1...n Fan coil units (field supply)
NOTE
113
A
FCU1 FCU2
23.1
B
11
23
FHL1 FHL2
11
Assembly unit
17
FCUn
FHLn