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FITTINGS, VALVES & PIPES
Fittings Supplied with EHP32
Fitting
Filter
Description
¾Rp x ¾Rp
Fitting
Illustration
Quantity
1
Table 2.
Fittings Supplied with HPST265
Fitting
P&TR Valve
Description
½R
Fitting
Illustration
Prt.No. / Qty
11004784 / 1
Fittings Supplied by installer
The following items are to be supplied by the installer:
•
A cold water expansion control valve (ECV).
An ECV must be fitted in Western Australia and South Australia to the cold water supply to the storage
cylinder to comply with local regulations. An ECV is recommended in all other geographical areas where the
water supply has a tendency to cause scaling. This will reduce hot water discharge from the Pressure and
Temperature Relief (P&TR) valve which minimises wear on this valve.
•
A stop cock, non return valve and line strainer.
Combination valves incorporating two or more of these functions (such as 'Trio' valves) are suitable. These are
fitted to the cold water supply to the storage cylinder by the installer.
•
Cold water supply and hot water discharge pipe work to and from the storage cylinder
•
An approved pressure limiting valve is required if the maximum rated water supply pressure in is exceeded
see Table 1 "SYSTEM SPECIFICATIONS" on page 8 for details.
•
Connecting ½ inch copper pipe work between the heat pump module and the storage cylinder connections.
(Maximum of 4m for each length of pipe)
•
Connecting copper pipe work insulation.
Water Pipes
All pipe work to hot water outlets should be insulated with Polythene foam or equivalent insulation to optimise
performance and energy efficiency. Such insulation may be mandatory under local regulations. Insulation must be
weatherproof and UV resistant if exposed.
Copper pipe work between heat pump module and storage cylinder must be insulated with Ultraviolet and weather
resistant closed cell elastomeric insulation, minimum thickness 13mm, thermal conductivity 0.045 W/(m.K) or less
(Armacell HT/Armaflex or equivalent).
Water pipe sizing should be performed in accordance with AS/NZS 3500.4.
To prevent damage to the storage cylinder when attaching pipe clips or saddles to the jacket, it is recommended
that self drilling screws with a maximum length of 12mm are used. If drilling is required take extreme care not to
penetrate the inner cylinder. Damage to the inner cylinder is not covered under warranty.
Rinnai Australia
INSTALLATION GENERAL
Copper olive compression
Restrictor
¾Rp x ¾R
nut ¾G + Olive + nipple ¾R x ¾G
27801712 / 1
32201713 / 4
Table 3.
Nipple
T adaptor
¾R x ¾R
¾R x ½Rp x ½ G
17201005 / 1
19001018 / 1
12
Socket
T
¾Rp
¾Rp x ¾Rp x ¾Rp
18601018 / 1
19001011 / 1
Operation & Installation Manual
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