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TO FILL AND TURN ON THE WATER HEATER
The power supply to the solar storage tank must not be switched on until the water heater is filled with
water and a satisfactory megger reading is obtained.
•
Open all of the hot water taps in the house (don't forget the shower).
•
Open the isolation valves fully on the cold and hot water branches to the water heater(s) in a bank.
•
Open the cold water isolation valve fully on the cold water line to the water heater(s).
Air will be forced out of the taps.
•
Close each tap as water flows freely from it.
•
Check the pipe work for leaks.
•
Inspect for leaks at the temperature pressure relief valve connection to the water heater.
If a leak is detected, close the cold water isolation valve fully and relieve pressure from the water heater
by either operating the easing lever on the temperature pressure relief valve or opening a hot tap. Remove
the valve and all of its thread sealant from the threads of the valve. Reapply new thread sealant and refit
the valve. Refer to the procedure in
•
Operate the easing lever on the temperature pressure relief valve to check the smooth operation of the
valve plunger and that water discharges freely from the drain line. It is very important the lever is raised
and lowered gently. The lever should move smoothly and without undue force.
If the lever cannot be moved or is jerky in its movement, then the valve has been damaged and must be
replaced.
•
Switch on the electrical supply at the water heater isolating switch(s) on the switchboard and at the
isolating switch(s) at the solar storage tank(s) (if installed).
•
Set the timer if one is installed. Refer to
•
Remove the packaging / covers from the solar collectors. The packaging / covers must be removed
completely prior to the permanent operation of the water heater.
•
Complete the installation check list. Refer to
Explain to the householder or a responsible officer the functions and operation of the water heater and the
timer if one is installed. Upon completion of the installation and commissioning of the water heater, leave this
guide with the householder or responsible officer.
TO TURN OFF THE WATER HEATER
If it is necessary to turn off the water heater on completion of the installation, such as on a building site or
where the premises is vacant, then:
•
Ensure the collectors are covered with an opaque material,
•
Switch off the electrical supply at the water heater isolating switch(s) on the switchboard and at the
isolating switch(s) at the solar storage tank(s) (if installed).
•
Close the cold water isolation valve at the inlet to the water heater(s) to shut down the entire system, or;
•
Close the isolation valves on the cold and hot water branches to shut down an individual water heater in
a bank.
COMMISSIONING
"Temperature Pressure Relief Valve"
"Booster Control"
on page 12.
"Installation Check List"
54
on page 48.
on page 55.
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