30
INSTALLATION – SOLAR STORAGE TANK
SOLAR WATER HEATER STORAGE TANK LOCATION
The solar storage tank is suitable for either outdoor or indoor installation. Whether located outdoor or indoor,
the solar storage tank should be installed close to the most frequently used outlet and its position chosen with
safety and service in mind.
Consideration must also be given to the position of the solar storage tank in relation to the solar collectors.
There are limitations on the maximum length of the solar hot and solar cold pipes between the solar storage
tank and the solar collectors. Refer to
on page 42 and
“Maximum Height to Collectors”
on page 43.
Clearance must be allowed for servicing of the solar storage tank
and solar control unit. The solar storage tank must be accessible
without the use of a ladder or scaffold. Make sure the temperature
pressure relief valve lever is accessible and the front cover,
thermostat, booster heating unit, controller cover, PCB and
circulator can be removed for service.
You must be able to read the information on the rating plate. If
possible leave headroom of one solar storage tank height so the
anode can be inspected or replaced. Remember you may have
to remove the entire solar storage tank later for servicing.
The solar storage tank is to be installed at ground or floor level
and must stand vertically upright on a stable base as acceptable
to local authorities. The base of the solar storage tank is made of
corrosion resistant material, and it may be placed directly in
contact with the supporting surface. It is not necessary to allow
for free air circulation under the base of the solar storage tank.
Note:
The solar storage tank should not be placed in direct contact with a concrete surface that is less than
two months old and not fully cured as this may attack the metal coating of the solar storage tank base. A
moisture barrier should be used between the two surfaces in this instance. The barrier should extend at least
100 mm from the solar storage tank and may be trimmed after two months.
Remember all local authorities have regulations about putting water heaters into roof spaces.
SAFE TRAY
Where damage to property can occur in the event of the solar storage
tank leaking, the solar storage tank must be installed in a safe tray.
Construction, installation and draining of a safe tray must comply with
AS/NZS 3500.4 and all local codes and regulatory authority requirements.
AS/NZS 3500.4 also has particular requirements when a safe tray must
be installed.
MAINS WATER SUPPLY
Where the mains water supply pressure exceeds that shown in the table, an approved pressure limiting valve
is required and should be fitted as shown in the
on page 46.
Model
270, 320, 410
Temperature pressure relief valve setting
1000 kPa
Expansion control valve setting *
850 kPa
Maximum mains supply pressure
With expansion control valve
680 kPa
Without expansion control valve
800 kPa
Minimum mains supply pressure
200 kPa
* Expansion control valve not supplied with the water heater.
Содержание Streamline 270
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