43
Manual - Solar hot water systems
Wiring plan 3
- Vaillant boiler
- Wiring via standard wiring box
- Solar circuit control via VRS 560
- Solar cylinder reheating control via a separate hot
water programmer from a third party manufacturer
- Heating circuit control via a separate programmable
timer 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. 5.29)
- Attachment of the solar gain sensor to the solar
circuit return (see Fig. 5.29)
- Connection of the solar pump to the solar control via
its own thermal cut out (see Fig. 5.30)
• Fit a wiring box near to the cylinder for easy electrical
connection.
a wiring box next to the cylinder in order to establish
the electrical connections.
1
2
3
c
y
linder
co
n
tr
o
l
C
°
1
2
3
Fig. 5.29 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. 5.29.
• 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
the target 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. 5.30 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 Vaillant boiler, the programmer and the
room thermostat.
• Establish the connections to the mains supply.
Installation 5
