Vaillant ecoTEC plus VU 446/5-5 (H-GB), Инструкция по установке и обслуживанию

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Installation 5
0020261389_02 ecoTEC plus Installation and maintenance instructions
13
The product can control a decoupled heating circuit and a
directly connected domestic hot water cylinder.
Number for
the basic
diagram Control
system Number
of cir-
cuits Carrying out the
wiring
0020253238 VRC 700
system
control
1 Inform Customer
Service.
0020253239 VRC 700
system
control
VR 70 multi-
functional
module
2 Inform Customer
Service.
0020259027 VRC 700
system
control
VR 71 multi-
functional
module
>3 Inform Customer
Service.
The settings for the internal pump are made at the factory.
▶
Ensure that there is sufficient dimensioning for the
connections and the domestic hot water cylinder.
(
→
Page 15)
▶
Downstream of the low loss header, select a heating
pump that is appropriate for the installation.
▶
Connect the external pump for the decoupled heating
circuit to the plug
X16 for the main PCB.
▶
Connect the external prioritising diverter valve to the plug
X13 on the main PCB.
▶
Connect the temperature sensor for the low loss header
to plug
X41 on the main PCB. Observe the instructions
for the low loss header.
▶
In order to control the cylinder's post-heating, connect
a
VR 10 temperature sensor or a thermostat to the plug
that is connected to the main PCB.
Wiring diagram (
→
Page 50)
▶
Set diagnostics code D.026 to 2.
Overview of diagnostics codes ( Applicability: VU 446/5-
5 (H-GB) OR VU 606/5-5 (H-GB)) (
→
Page 42)
5.1.3 Basic system diagram type 3: Decoupled
heating circuit plus one decoupled domestic
hot water cylinder
1
2
3 4 5
6
1 Wall-hung boiler with
internal pump
2 Low loss header or
plate heat exchanger
3 External pump for the
decoupled heating
circuit
4 Heating circuit
5 External pump for the
decoupled domestic hot
water circuit
6 Domestic hot water
cylinder
The product can control a decoupled heating circuit and a
decoupled domestic hot water cylinder.
Number for
the basic
diagram Control
system Number
of cir-
cuits Carrying out the
wiring
0020259029 VRC 700
system
control
1 Inform Customer
Service.
0020259030 VRC 700
system
control
VR 70 multi-
functional
module
2 See appendix or
contact customer
service for special
basic diagrams.
0020259031 VRC 700
system
control
VR 71 multi-
functional
module
>3 Inform Customer
Service.
Note
The example of a basic installation diagram that
is shown in the appendix does not replace any
correct and expert system planning. (
→
Page 52)
The settings for the internal pump are made at the factory.
▶
Ensure that there is sufficient dimensioning for the
connections and the domestic hot water cylinder.
(
→
Page 15)
▶
Downstream of the low loss header, select a heating
pump that is appropriate for the installation.
▶
Downstream of the low loss header, select a domestic
hot water pump that is suitable for the domestic hot water
cylinder.