5 Installation
8
Installation and maintenance instructions auroSTOR 0020221298_04
Caution.
Risk of material damage by drilling
through the product.
The product may be damaged by drilling
work.
▶
Do not drill through the product.
Caution.
Risk of material damage to the cylinder.
If an unvented hot water cylinder is fitted at
a high level (eg, loft space), potential dam-
age to the cylinder may occur if the correct
method of draining is not followed.
▶
In certain circumstances and at the dis-
cretion of the installer, install a WRAS ap-
proved automatic air vent on the hot water
outlet at the highest point.
6
7
8
11
10
12
13
1
2
4
3
5
9
14
1
Solar circuit return
2
Solar circuit flow
3
Heat generator heating
return
4
2-port motorised valve
5
Heat generator heating
flow
6
Temperature and pres-
sure expansion relief
valve
7
Secondary circuit return
8
Domestic hot water
outlet
9
Safety group
10
Expansion vessel
11
Tundish
12
Dry pocket for the solar
circuit temperature
sensor
13
Cold water inlet
14
Drain valve
5.2.1
Connecting the solar circuit
1.
Connect the solar circuit to the inlet
(1)
and the outlet
(2)
.
Installing the solar yield sensor
2.
Install the yield sensor on the solar coil outlet close to
the cylinder.
5.2.2
Connecting the product to the heating circuit
1.
Connect the heating circuit to the inlet
(5)
and the outlet
(3)
.
–
Minimum diameter of the copper pipe:
≥
22 mm
Note
Ensure that the distance between the heat
generator and the product is as small as pos-
sible in order to prevent heat losses.
Installing the 2-port motorised valve
AUT
O
MAIN
OPEN
2.
Install the 2-port motorised valve at the heating coil's
inlet or outlet.
3.
For the 2-port motorised valve, follow the installation
direction that is marked by an arrow.
4.
The 2-port motorised valve can be installed vertically or
horizontally. For horizontal installation, align the valve
head so that it is facing upwards.
5.2.3
Installing the drain valve
The drain valve must be supplied by the customer.
Install the drain valve at the height of the cold water supply
or further below this level.
5.2.4
Installing the safety group
Caution.
Excessive pressure in the domestic hot
water cylinder
Excessive pressure in the domestic hot water
cylinder may cause the cylinder to burst.
▶
Ensure that the expansion relief valves
are not blocked.
▶
Ensure that there is no isolation valve
between the safety group and the cylin-
der.
