joule Thermalstore 1.0, Installation Manual

Page: 55 / 68

55
Check the pressure in the expansion vessel is charged to 3 bar . Turn off the water
supply to the unit and open a hot tap first. The air valve on expansion vessel is a
Schrader (car tyre) type.
Air or CO2 may be used to charge the expansion vessel. Unscrew the head on the
inlet control set and clean the mesh fi lter within. The Service Log Book supplied
with this unit should be updated at each service.
YOUR GUARANTEE MAY BE VOID IF YOU CANNOT PRODUCE PROOF OF ANNUAL
SERVICING
IMMERSION HEATER REPLACEMENT
If the thermal cut out on the Immersion heater operates contact a competent
installer. If the thermal cut out fault occurs again the immersion will need to be
replaced. Prior to installing the replacement Immersion, ensure the o-ring is correct-
ly positioned on the head of the Immersion and lubricate the threads before fi tting.
Thread the Immersion by hand until it is hand tight and then tighten gently to allow
the o-rings to create a water tight seal.
INSPECTION
Where internal inspection of the cylinder is required an endoscope can be used.
Inspection can be carried out by draining down the cylinder and removing a
component that is fi tted to a wet connection in the cylinder.
SAFETY VALVE CHECKS
Any sign of water coming from either the temperature/pressure relief valve or the
expansion relief valve indicates a problem.
Check your discharge pipework is free from debris and is carrying water away to
waste eff ectively. Next hold both of these safety valves open, allowing as much
water as possible to fl ow through the tundish. Release the valves and check that
they reseat correctly.
Completion of the Benchmark checklist on pages 32 – 33 MUST be adhered to by
the installer.