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VN0930027
Solahart Owner’s Manual – Thermosiphon Systems - Revision 3
System Configurations
STANDARD ROOF INSTALLATION
FLAT ROOF INSTALLATION
150RD00/1BPT-W
150RD00/1BPT-F
Tank - no element 1 x 150RD00
Tank - no element 1 x 150RD00
Collector 1 x BPT20007
Collector 1 x BPT20007
Installation Kit 1 x VN1000005
Flat Roof Frame Kit 1 x VN1000002
150RD18/1BPT-W
150RD18/1BPT-F
Tank - 1.8kW element 1 x 150RD18
Tank - 1.8kW element 1 x 150RD18
Collector 1 x BPT20007
Collector 1 x BPT20007
Installation Kit 1 x VN1000005
Flat Roof Frame Kit 1 x VN1000002
150RD00/1BPT-WV
150RD00/1BPT-FV
Tank - no element 1 x 150RD00
Tank - no element 1 x 150RD00
Collector 1 x BPT20007
Collector 1 x BPT20007
Installation Kit 1 x VN1000005
Flat Roof Frame Kit 1 x VN1000002
TPR Valve 1 x VN0262002K
TPR Valve 1 x VN0262002K
150RD18/1BPT-WV
150RD18/1BPT-FV
Tank - 1.8kW element 1 x 150RD18
Tank - 1.8kW element 1 x 150RD18
Collector 1 x BPT20007
Collector 1 x BPT20007
Installation Kit 1 x VN1000005
Flat Roof Frame Kit 1 x VN1000002
TPR Valve 1 x VN0262002K
TPR Valve 1 x VN0262002K
Pressure Relief Control
For correct operation and safety, the pressure relief port of the tank must be fitted with one of the following Pressure Relief
controls:
Unvented Systems – Temperature and Pressure Relief (TPR) valve Part No. VN0262002K.
Vented Systems - A Vent Pipe. Refer to Page 22 for connection details.
The pressure relief port of the tank is located at the top of the tank and is labelled as “PRESSURE RELIEF PORT”.
WARNING
: The Pressure Relief port of the tank must not be plugged, restricted or plumbed by any means other than
stipulated above. Blocking this port or unapproved plumbing connections to this port may lead to tank failures resulting in
damage to property and personal injury, and will void the warranty.
TPR VALVE (UNVENTED SYSTEM)
This valve is fitted in the top of the water heater tank and is essential for the safe
operation of an Unvented System.
WARNING:
Part No. VN0262002K is the only approved TPR for this heater. The use
of unapproved TPR valves may lead to tank failures resulting in damage to property
and personal injury. The use of unapproved TPR valves will void the Solahart
warranty.
It is possible for the valve to release a little water through the drain line during each
heating period. This occurs as the water is heated and expands by approximately 1/50
of its volume. Continuous leakage of water from the valve and
its drain line may indicate a problem with the water heater.
Warning
: Never block the outlet of this valve or its drain line for any reason. The drain line must be left open to the
atmosphere.
The easing lever on the temperature pressure relief valve should be operated once every six months. Refer to
“Minor
Maintenance Every Six Months”
on
Page 7
.
It is very important the lever is raised and lowered gently.
DANGER:
Failure to do this may result in the water heater cylinder failing, or under certain circumstances, exploding.
The temperature pressure relief valve should be replaced at intervals not exceeding 5 years, or more frequently in areas where
there is a high incidence of water deposits.
drain
line
lift until water
flows from the
drain lin
e
–
lower gently
