5 Installation
8
Installation and maintenance instructions uniSTOR 0020221297_05
5
Installation
5.1
Setting up the unit horizontally
▶
Align the product vertically by adjusting the adjustable
feet.
5.2
Hydraulic connection
Caution.
Risk of damage caused by heat transfer
when welding.
The heat that is transferred during welding
may damage the cylinder and its components
as well as the connection seals.
▶
Protect the product and its components.
▶
Do not weld the connection pieces if these
have been screwed into the pipe fittings.
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.
4
5
7
6
9
8
10
1
2
3
11
1
Heat generator heating
return
2
Heat generator heating
flow
3
Temperature and pres-
sure expansion relief
valve
4
Domestic hot water
outlet
5
Safety assembly
6
Tundish
7
Expansion vessel
8
2-port motorised valve
9
Dry pocket for the tem-
perature sensor
10
Cold water inlet
11
Drain valve
5.2.1
Connecting the product to the heating circuit
1.
Connect the product to the inlet
(2)
and the outlet
(1)
on
the heating circuit.
–
Minimum diameter of the copper pipe:
≥
22 mm
2.
Ensure that the distance between the heat generator
and the product is as small as possible in order to pre-
vent heat losses.
Installing the 2-port motorised valve
AUT
O
MAIN
OPEN
3.
Install the 2-port motorised valve at the heating coil's
inlet or outlet.
4.
For the 2-port motorised valve, follow the installation
direction that is marked by an arrow.
5.
The 2-port motorised valve can be installed vertically or
horizontally. For horizontal installation, align the valve
head so that it is facing upwards.
Summary of Contents for uniSTOR VIH GB 3 BES Series
Page 23: ......
