Example 2
If the DHW cylinder is installed downstream of the low-
loss header, you will have to set the
Rev. seq. control
parameter in Installation Assistant Menu
A5
to
No
.
On boilers with a priority switching valve for hot
water generation installed, unplug the connector to
the valve.
WW
KW
VF1
HK1-P
HK2-P
HK3-P
LP/UV1
HK2
HK3
HKa-P
HKa
HKb-P
HKb
VF2
VR 32
2
BUS
BUS
BUS
BUS
2
2
2
VR 32
VR 32
VR 60
VF3
VFa
VFb
SP
ZIR
Fig. 5.6 Wall-mounted boilers with VRC 630 VIH downstream
of low-loss header
>
The heating system consists of:
-
4 heat sources (e.g. 4 wall mounted gas boilers,
connection via eBUS)
- 1
DHW
cylinder
(connected downstream of the low-loss header)
-
1 uncontrolled heating circuit
(direct circuit, control via remote control device)
-
4 controlled heating circuits (4 underfloor
circuits, control via remote control devices)
34
Installation Instructions VRC 630 0020095108_00
5 Electrical installation
Содержание VRC 630
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Страница 55: ...For the heating engineer Installation Manual VRC 630 ...
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Страница 152: ...0020095108_00 GB 022010 Subject to alterations ...