Pressure Relief Valve (PRV) Rated at 6 bar, the PRV may discharge heat transfer fluid
which must be channelled into a container capable of withstanding high temperature
discharge and containing the total collector volume. The container should be secured
so it cannot be removed or spilled.
The PRV should not be channelled into a drain or any pipe work which will allow it to
enter the normal water course.
Fitting the expansion vessel:
It is recommended that the expansion vessel is located below the level of the connec-
tion from the pump station to prolong its life.
Temperature Reducing Vessel (TRV) Also known as a ‘cooling vessel’ or ‘stratification
vessel’, the TRV is highly recommended where the distance between collectors and
pump station is less than five meters. The TRV ensures that enough fluid is present
between the collectors and expansion vessel to prevent damage to the expansion
vessel membrane.
Safety Vessel Connection
23
NAVITAS
installation manual
1
PRV discharge point
2
Wall bracket (supplied)
3
Discharge container
4
TRV kit
5
Expansion vessel
6
Dual stream pump station
1
2
2
3
4
6
