Specifications

INSTALLATION
25
SADDLING - PIPE WORK
To prevent damage to the cylinder when attaching pipe clips or saddles to the water heater jacket, we
recommend the use of self-drilling screws with a maximum length of 13 mm. Should pre drilling be required,
extreme caution must be observed when penetrating the jacket of the water heater.
Note: If the cylinder is damaged as a result of attaching pipe clips or saddles to the jacket, any
resultant faults will not be covered by the Rheem warranty.
BOOSTER HEATING UNIT
The booster heating unit is for heating the water at times of low solar energy gain, such as during very cloudy
or rainy weather, or during the colder months. Refer to “Connections – Electrical” on page 51 for electrical
connection requirements and control options of the booster heating unit.
If this water heater is installed with an in-series booster, then the electric booster heating unit in the solar
storage tank will not need to be connected to a power supply.
PLASTIC END COVER
A set plastic end covers is available for installation to the ends of the tank. These ends provide an
aesthetically pleasing finish to the system by housing the pipe work and electrical connection within them.
Where a plastic end cover is to be installed, the plumbing and electrical connections need to be routed to
suit. Check the installation documentation that comes with the plastic ends for these details.
TANK REPLACEMENT
If replacing a tank over 5 years old, the replacement tank must be fitted with a new temperature pressure
relief valve and expansion control valve.
COLLECTOR REPLACEMENT
Care must be taken to ensure the surface area of new collectors is equal to +/- 10% that of the existing
collector surface area otherwise overheating in summer or lower recovery rates in winter may occur.
OVER-TEMPERATURE PROTECTION
AS/NZS 2712:2007 includes a requirement for a no-load system operation test. In order to comply with this
requirement, solar hot water systems installed with two or more Titan collectors must be fitted with TRV for
RL series or OTP for RLX series.
The systems listed below must be installed using the Over-Temperature Protection Parts kits described to
comply with AS/NZS 2712:2007.
RL System Over-Temperature Protection
The following system requires the installation of a Thermosiphon Restrictor Valve (TRV) kit to meet the
requirements of AS/NZS 2712:2007.
System Number Parts Kit No. No. of Collectors
RL32 Titan Series 2A (4305072-TRV) uses 2 collectors
Please refer to the specific TRV to Cold Pipe Assembly Instructions (34-7298) supplied in the TRV Parts Kit
for full installation details.
RLX System Over-Temperature Protection
The following systems require the installation of an OTP kit to meet the requirements of AS/NZS 2712:2007:
System Number Parts Kit No. No. of Collectors
RLX32 S3 Titan Series 2A (4305172-S3OTP) uses 2 collectors
RLX33 S3 Titan Series 2A (4305164-S3OTP) uses 3 collectors
Please refer to the specific RLX OTP Installation Instructions (34-7297) supplied in these OTP Parts Kits for
full installation details.