Apricus tempermate, Owners And Installation Manual

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19
SYSTEM RECIRCULATION COMMISSIONING
1. Turn the warm water ring main pumps on and set to the highest speed.
2. Allow time for the system to stabilise. Note: The amount of time will depend on the length
of the ring main and the volume of water in it.
3. Monitor the return temperature on the digital thermometer inserted in the cold water inlet
connection of the Warm Water temperature.
Note: During recirculation i.e. when water is not being drawn, the Apricus Tempermate
Warm Water System requires a flow rate of at least 4 litres per minute per valve and a
temperature differential between the outlet and return of at least 3°C to maintain the
system temperature accurately.
Depending on the plumbing design it may be necessary to adjust the pump speed to achieve the
required temperature drop provided the flow rate can be maintained at 4 litres per minute per valve.
4. Once the system has stabilised with a flow rate of at least 4 litres per minute per valve and
the difference between the outlet and return temperatures is at least 3°C, record the return
temperature and pump circulator speed in the “Commissioning Report” form.
5. Close and lock the Warm Water Unit and hand over the keys to the system owner.
6. Provide a copy of the completed commissioning form to the system owner.