Rheem Water Heater - Manual (Page 55)

COMMISSIONING
55
SOLAR CIRCUIT
It is necessary to commission and check the operation of the solar circuit. The
commissioning procedure includes:
• checking the circulation of closed circuit fluid through the solar circuit.
• checking the drain back function of the solar circuit.
• pressure testing the solar circuit to ensure there are no leaks.
• checking the level of the closed circuit fluid and adjusting if required.
The water heater is supplied charged with closed circuit fluid. The level of the
closed circuit fluid only needs to be checked if:
• a third solar collector is installed.
• there is a significant leak in the solar pipe work and closed circuit fluid has
been discharged.
• the maximum recommended solar pipe length is exceeded.
• a second solar pump is installed if the maximum height from the base of the
solar storage tank to the top of the solar collectors exceeds 9 m (refer to
“Pipe Lengths” on page 33).
Additional Equipment
Additional equipment will be required for the commissioning and checking of
the solar circuit. This includes checking the closed circuit fluid level and
conducting a drain back test. The following equipment is required:
• a 1500 mm long x 12 mm (½”) diameter clear hose (closed circuit fluid level
hose).
• one (1) ½” hose clamp.
• a suitable plug for one end of the hose.
• suitable tape to affix the hose to the side of the solar storage tank.
• a torch to illuminate the working area under the heat exchanger and storage
tank cylinder.
• a non-permanent marker.