Vaillant Solar System and auroSTOR unvented solar..., Start-Up, Maintenance And Troubleshooting Manual

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51 Manual - Solar hot water systems 0020009607_02
Wiring plan 4
- Boiler from third party manufacturer
- Wiring via standard wiring box
- Solar circuit control via VRS 560
- Solar circuit reheating control via VRS 560
- Heating circuit control via a separate central heating
programmer from a third party manufacturer
- Overview connection of the cylinder thermostat to the
wiring box
- Installation of two VR 10 temperature sensors in the
solar cylinder (see Fig. 5.32)
- Attachment of the solar gain sensor to the solar
circuit return (see Fig. 5.32)
- Connection of the solar pump to the solar control via
its own thermal cut out (see Fig. 5.33)
• Fit a wiring box near to the cylinder for easy electrical
connection.
• Attach a wiring box next to the cylinder in order to
establish the electrical connections.
1
2
3
cy
li
n
d
e
r
co
n
tr
o
l
C
°
1
2
3
Fig. 5.32 Installation of the VR 10 temperature sensor
• Push one of the VR 10 temperature sensors ( 1 )
supplied with the solar control in an immersion sleeve
where there is still room, as illustrated in Fig. 5.32.
• Connect this temperature sensor to terminal “SP 1” in
the auroMATIC 560 solar control.
• Push a VR 10 temperature sensor ( 3 ) in the immersion
sleeve for the bottom cylinder area.
• Connect this temperature sensor to terminal “SP 2” in
the auroMATIC 560 solar control.
• Attach the temperature sensor for the gain ( 2 ) to the
return pipe of the solar circuit nearby the solar
cylinder.
• Connect this temperature sensor to the terminal
“Ertrag” in the auroMATIC 560 solar control.
• Make sure the temperature sensors of the immersion
heater, solar cylinder and solar control fit properly in
the immersion sleeves.
h
Note!
Set the controller of the cylinder thermostat to
maximum temperature (1, Fig. 5.20).
• Set the maximum temperature (MAXT 1) of the
auroMATIC 560 solar control to 70 ºC
(see auroMATIC 560 manual).
• Connect the collector temperature sensor to terminal
“Kol 1” in the auroMATIC 560 solar control.
1
3
A
B
C
D A
B
C
D
3
3
Fig. 5.33 Connection diagram of the solar pump TCO
• Connect the solar pump, the thermal cut out intended
for this purpose and terminal “Kol 1-P” of the solar
control to each other by means of an additionally
protected terminal strip.
• Wire up the boiler of the third-party manufacturer, the
programmer and the room thermostat.
• Establish the connections to the mains supply.
h Note!
Programme the auroMATIC 560 solar control to
provide hot water when required by the
customer.
h Note!
The auroMATIC 560 control will only signal to
the boiler if the cylinder is below target tempe-
rature, if the solar system is not operating and
if the hot water programmer is on.
Installation 5