Vaillant 0020135785, Руководство по установке, Страница: 12 / 20

en
SAFETy
- 10 -
0020140122_03 - 12/19 - Vaillant
3.2.7 Multizone mode with combi boiler
EBUS
EBUS
EBUS
1
2
-
+
BUS NTC
N L N L
16A
230V~ CYL.
DHW
CH1
CH2
2 1
BUS BUS
16A
NL
BUS
ON DHW OFF
0
0 2
10
9
8
2
A
B
D
5
6
11
7
3
8
5 6
1 2 3
7
4
1
C
Key
1 VRT 350 room thermostat “zone 1” or VRT 380
2 Combi boiler
3 VRT 350 room thermostat “zone 2” or VR 92
(in combination with VRT 380)
4 Connection block (not supplied)
5 Heating zone 2- 2-port valve
6 Heating zone 1- 2-port valve
7 Electrical supply
8 VR 66/2 control centre
9 Heating circuit zone 1
10 Heating circuit zone 2
11 Overheating safety (if underfloor heating)
A Boiler circuit return
B Boiler circuit flow
C Cold water supply
D Domestic hot water outlet