Glow-worm ENERGY 18r -A (H-GB) - 5 Installation; Preparing for Installation; Connecting the Heating Flow and Heating Return; Gas Connection

Installation 5
0020200958_00 SUSTAIN ..r Installation and maintenance instructions 11
5 Installation
5.1 Preparing for installation
Danger!
Risk of scalding and/or damage due to
incorrect installation leading to escaping
water.
Stresses in the supply line can cause leaks.
▶ Make sure there is no voltage in the sup-
ply lines when they are installed.
Caution.
Risk of damage caused by corrosion.
If non-diffusion-tight plastic pipes are used in
the heating installation, this may cause air to
enter the heating water and corrosion of the
heat generation circuit and the boiler.
▶ If using non-diffusion-tight plastic pipes
in the heating installation, separate the
system by installing an external heat ex-
changer between the boiler and the heat-
ing installation.
Caution.
Risk of material damage due to heat trans-
fer during soldering.
▶ Do not solder the connection pieces if
the connection pieces are screwed to the
service valves.
Caution.
Risk of damage caused by incorrect gas
installation.
Excess test pressure or operating pressure
may cause damage to the gas valve.
▶ Check the leak-tightness of the gas valve
using a maximum pressure of 1.1 kPa
(110 mbar).
▶ Flush the heating installation thoroughly prior to installa-
tion.
▶ Make sure that the existing gas meter is capable of
passing the rate of gas supply required.
▶ Install the following components:
– Drain cocks at the lowest points of the heating install-
ation
– A heating pump in the heating flow
– A bypass that is at least 1.5 m away from the product
– A stop cock in the gas line
5.2 Connecting the heating flow and heating
return
2
1
1 Heating return connec-
tion
2 Heating flow connection
1. Establish the heating connections in accordance with
the applicable standards.
2. Purge the gas line before start-up.
3. Check whether the connections (→ Page 19) are leak-
tight.
5.3 Gas connection
1
1. Establish the gas connection (1) in accordance with the
applicable standards.
2. Purge the gas line before start-up.
3. Check whether the connections (→ Page 19) are leak-
tight.