Hoval flat station
■■Examples
Hydraulic schematic
Hoval flat station WKH
for radiator heating circuit and water heating 1
HW
14 13 14
CW
10
14
CW Heating Flow (section)
6
3
Heating Flow (flat)
Bypass 11
Heating Return (section)
12
8
7
1 Plate heat exchanger 2 Differential pressure regulator, flat heating circuit 0.1 bar 3 Strainer (screen size 0.6 mm) 5 Return temp. limiter preset 6 Connection possible for sensor WMZ
7 8 9 10 11
9
5
Adapter for WMZ (¾“ x 110 mm) Air-bleeding Adjustable zone valve PTC2+P controller Temperature maintenance module (preset)
2
Heating Return (flat)
3
2 T-piece with plug ½" 1 13 Hot water limiter 14 Adapter for KWGesZ, KWZ, WWZ (¾“ x 80 mm)
Hoval flat station WKH FWR with built-in pump module and fixed value control
1 14
HW
13 14
CW
10 14
CW Heating Flow (section)
6
230 V vom Raumthermostat bzw. Netz From room thermostat orvom circuit 3
16
Heating Flow (flat)
Bypass 5
Heating Return (section)
12
11
1 Plate heat exchanger 2 Differential pressure regulator, flat heating circuit 0,2 bar 3 Strainer (screen size 0.6 mm) 4 Circulating pump WILO Yonos PARA 15/6-130 5 Non-return valve 226
7
8
2
12
15
9 9
6 7 8 9 10 11
Connection for WMZ M10x1 Adapter for WMZ (¾“ x 110 mm) Air-bleeding Adjustable zone valve PTC2+P controller Temperature maintenance module (preset)
4
3
17
Heating Return (flat)
2 T-piece with plug ½" 1 13 Hot water limiter 14 Adapter for KWGesZ, KWZ, WWZ (¾“ x 80 mm) 15 Thermal actuator TWA-A/NC 230 V 16 Safety thermostat 56°C +/-3K 17 Fixed value control 15-50°C Subject to alterations, 1.8.2013