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RGC 120H - www.regulus.eu
6 - Installation and Commissioning
Installation must meet valid rules and may be done only by qualied staff. The tank shall be placed on the
oor, as close to the heat source as possible.
Warning:
Defects caused by improper installation, use or handling are not covered by warranty.
6.1 - Connection to heat sources
Connect heating circuits to the inlets to and outlets from the heat exchanger with G 5/4” couplers.
6.2 - Connection to a solar thermal system
The G 6/4“ side tapping is designed to accommodate an electric heating element. The hot water storage tank
can be equipped with an el. heating element depending on the tank diameter and the heating element length. It
can be controlled either directly (thermostat-equipped elements), or by a heating system controller.
Warning: All electric heating elements shall be protected by a safety thermostat.
The installation may be done by qualied staff only.
6.3 - Connection to water mains
DHW piping shall be done according to valid rules. G 3/4” threaded couplers are used to connect the tank to a
cold water inlet and hot water outlet. A 6bar safety valve shall be installed at the cold water inlet. Installation of
a reducing valve to the tank inlet is recommended. If the pressure from water mains exceeds 6 bar, a reducing
valve is necessary. In order to prevent water loss, an expansion tank o fat least 5 l volume should be installed
at the cold water inlet as well.
DHW piping shall be done according to valid rules. G 3/4” threaded couplers are used to connect the tank to a
cold water inlet and hot water outlet. A 6bar safety valve shall be installed at the cold water inlet. Installation of
a reducing valve to the tank inlet is recommended. If the pressure from water mains exceeds 6 bar, a reducing
valve is necessary. In order to prevent water loss, an expansion tank o fat least 5 l volume should be installed
at the cold water inlet as well.
6.4 - Electronic anode rod installation
A so called electronic anode rod can be used instead of the magnesium one. Its principle advantage is that it
does not need to be taken out for check. Just a visual check of the electronic anode is sufficient.
Kit for RGC 120H hot water storage tanks
Should an electronic anode rod or an el. heating element be installed, it is necessary to make a connection
between the metal tank casing and the PE line.
6.5 - Commissioning
Fill the heating circuits with the appropriate fluids and air-bleed the entire system.
Fill the tank with cold water, following this procedure:
- open the shut-off valve at the tank inlet
- open a hot water tap, as soon as water starts flowing out, tank filling is finished, close the tap
- check all connections for leaks, check the system pressure
Hot water quality must meet the conditions shown in the Table of limit values for total dissolved solids in
hot water, page 6 of this Manual.
Set the heating controller in compliance with the documentation and manufacturer’s recommendations. Check
regularly a proper function of all control and adjusting elements.
Code El. anode rod length [mm] For hot water storage tanks
9176 600 (350/250) RGC 120H
