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3.2
HOT WATER STORAGE TANK
3.2.1
PTRV
Any system design must allow a means of pressure
release at no more than 850kPa, using a PTRV. The PTRV
must have a downward direction copper pipe connected
that is open to the atmosphere, running the expelled hot
water or air to a safe, frost free and appropriate drainage
location. From time to time the PTRV may discharge small
amounts of water under normal operations (1L for every 50
Liters heated). If the tank is installed indoors, a safety tray
must be installed beneath the hot water tank to safely
collect any water expelled from the PTRV.
Check PTRV every 6 months. Lift lever to test the manual
relief. Water should emerge from the relief valve. It is
recommended that the manual relief is tested every 6
months, to flush out any deposits that may accumulate
under the seal.
3.2.2
ANODE
The anode on the glass lined (vitreous enamel) tanks is
sacrificial; however, it is designed to protect the vitreous
enamel lined cylinder in most public reticulated water
supplies for five years after which time it should be
checked as part of an annual service. It must be noted
however that some water supplies can exhibit chemical
qualities that are not suitable for the standard anode
supplied with glass-lined water heater. Where the Total
Dissolved Solids (TDS) is greater than 600mg/L or less
than 40mg/L, the installed anode may be unsuitable for
use to protect your water heater. In these circumstances, a
plumber or authorized service person should be contacted
to fit the correct (hard water) anode. Please note that
warranty becomes void if the TDS value exceeds 2500
mg/L. Check the tank anode (for glass-lined tanks only)
every 3 years.
RECLAIMENERGY.COM.AU
3.2.3
HYDROGEN BUILD UP
Glass lined (vitreous enamel) tanks are fitted with a
Magnesium anode to provide corrosion protection for the
tank from the storage water. Small quantities of hydrogen
gas can be released by the anode, which generally,
remains dissolved in the water and flushed away as hot
water is used from the tank. Dependant on the water
quality there may be a degree of hydrogen build-up in the
tank if the water heater has not been in use for two or
more weeks or if water appears milky in color. To resolve
the build-up of hydrogen within the tank, "purge" the tank
for approximately 30 seconds from the lever on the PTRV.
Stand clear of PTRV discharge piping outlet.
WARNING
Ensure there are no open flames or ignition sources
close to the tank.
3.2.4
DRAINING THE WATER HEATER
Reclaim system does not require drainage unless the
system is left without power or unused for holidays or
maintenance reasons. If drainage is required, the below
steps must be followed:
1. Turn off the electricity supply to the water heater.
2. Turn off the cold-water supply to the water heater at the
isolating valve.
3. Gently operate the lever on the PTRV to release the
pressure in the water heater.
4. Disconnect the cold-water inlet union and attach a drain
hose to the water heater.
5. Gently operate the easing lever on the PTR Valve to let
air into the water heater and allow water to escape
through the hose.
Quick Start/Install Manual – v1.0
3
33
| Reclaim Energy
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