GF JRG JRGUMAT Notice De Montage Et D'utilisation page 118

E
Installation instructions
JRGUMAT thermoblending valves will ope-
rate in any position. The installation regu-
lations relating to the water heater circu-
lation as well as local standards must be
complied with. Only the non-return valves
prescribed in the diagrams may be used.
The only stop valves permissible are low
pressure-loss valves, such as slanted seat
valves, gate valves and ball valves.
All pipes must be flushed thoroughly be-
fore JRGUMAT thermoblending valves are
installed. In order to prevent a JRGUMAT
mixing valve from malfunctioning due to
radiated heat, the valve should be located
at least one metre away from the heater.
If a minimum separation cannot be guar-
anteed, a thermosiphon must be installed.
Return-flow prevention
When connecting JRGUMAT thermo-
blending valves, only JRG type 1610-1615
low pressure-loss check valves, JRG type
1682 swing check valves and JRG type
5262-5284 closable non-return valves may
be used.
46