Loading ...
Loading ...
Loading ...
Rinnai 16 B Series Heat Pump OIM - Issue 1
Drainage
Where property damage can occur as a result of water leakage, the water heater MUST be installed with a safe
tray (overow tray) and drain. Construction, installation and draining of the safe tray MUST comply with local
regulatory requirements and. AS/NZS 3500.4 also requires the use of a safe tray for particular situations.
WATER SUPPLY
This appliance is intended to be permanently connected to the water mains and not to be connected by a hose set.
The maximum water pressure is listed on page 12. An approved pressure limiting valve may be required if the
maximum rated water supply pressure is exceeded.
Water chemistry and impurity limits are detailed in the separate warranty document. Most metropolitan water
supplies fall within these requirements. If you are unsure about water quality and suitability, contact your water
authority.
A water lter MUST be tted on the inlet to the tank to prevent sludge or foreign matter entering the system.
In a scaling water supply, calcium carbonate and possibly other compounds are deposited out of the water onto
any hot metallic surface and form a scale. Scaling water may cause scale deposits to form onto the metallic
surfaces of the PTR valve and may prevent it from operating properly. To prevent this, an expansion control valve
(ECV) MUST be tted on the cold water line after the non-return valve in areas of scaling water. ECVs’ MUST
be tted in South Australia and Western Australia to comply with local regulations.
STORAGE TEMPERATURE
To meet regulatory requirements the thermostat control on the heat pump water heater is factory pre-set to heat all
the water in the tank to 70°C once a week. This cannot be altered.
HOT WATER DELIVERY TEMPERATURE
This appliance may deliver water at high temperature. Refer to the Plumbing Code of Australia (PCA), local
requirements and installation instructions to determine if additional delivery temperature control is required.
The PCA, local regulations and the requirements of AS/NZS 3500.4 MUST be considered regarding the
temperature limitations of hot water supplied to areas used primarily for personal hygiene.
The temperature of water to certain areas is limited to different temperatures according to purpose, for e.g. early
childhood centres, primary and secondary schools and nursing homes or similar facilities for young, aged, sick
or people with disabilities and for all other buildings. To comply with these requirements, a temperature limiting
device, such as a thermostatic mixing or tempering valve, will be required on hot water systems.
VALVES AND FITTINGS
IMPORTANT
A 46 kW capacity, combined Pressure and Temperature Relief (PTR) valve is supplied with the
Heat Pump hot water system. This valve is tted at the top of the storage cylinder. The PTR
valve is a safety device and it is mandatory that it is tted by the installer in all installations..
The following valves & ttings are to be supplied by the installer:
•
A cold water expansion control valve (ECV). An ECV MUST be tted 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 (PTR) 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 tted to the cold water supply to the storage cylinder
by the installer.
•
Cold water supply and hot water discharge pipework to and from the storage cylinder. This pipework MUST
be insulated as specied in AS/NZS 3500.4
•
An approved pressure limiting valve (supplied with some systems) is required if the maximum rated water
supply pressure on page 12 is exceeded.
•
Tempering valve(s) or thermostatic mixing valve
INSTALLATION
Loading ...
Loading ...
Loading ...