Rinnai Demand Duo, Руководство по эксплуатации и установке

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Rinnai 8 HW Demand Duo Systems OIM
WATER QUALITY
The water quality of most public supplies is suitable for the water heating system. The water quality from bore
wells is generally unsuitable for the water heating system. Refer to the ‘Warranty Conditions’ for water quality
parameters and how they affect the warranty conditions. If in doubt about the water quality, have it checked against
the parameters listed in the warranty conditions. If sludge or foreign matter is present in the water supply, a suitable
strainer filter should be incorporated in the water supply to the system.
DRAINING
WARNING
Draining MUST be carried out by a qualified person.
Water may be HOT during draining.
Drain the storage tank(s) as follows:
1. Isolate or turn ‘OFF’ the water heater at the electricity supply.
2. Close the cold water isolation valve at the inlet to the storage tank(s).
3. Close the water isolation valve at the return port from the gas water heater(s) on the storage tank(s).
4. Close the hot water isolation valve at the outlet of the storage tank(s).
5. Operate the PTR valve easing gear - gently. Operating the PTR valve easing gear will relieve the pressure
in the water heater.
6. Undo the cold water inlet union. Attach a hose to the water heater side of the union. Let the other end of the
hose go to a drain.
7. Operate the PTR valve easing gear again. This allows air into the water heater and will result in water draining
through the hose.
PERIODIC MAINTENANCE & SERVICING
Rinnai service network personnel are fully trained and equipped. If your Rinnai appliance requires servicing contact
Rinnai as per the details on the back page of this manual. Rinnai recommends that this commercial appliance be
inspected and serviced by a qualified person every 12 months.
If overflow tray and drain are fitted, it is the users responsibility to have these checked periodically to ensure there
are no blockages.
The user should operate the easing gear of the ECV and PTR valve (if fitted) every 6 months as described under
“Safety Devices” on page 7.
The pressure and temperature relief valve and expansion control valve
MUST be checked for performance or
replaced by an authorised person at intervals not exceeding 5 years or more frequently in areas where the water
is classified as scaling water (see ‘Water Quality’).
If the electric conduit, power supply cord or plug to hot water system is damaged, they MUST be replaced by an
authorised person in order to avoid a hazard. The power supply cord and plug must be replaced by a genuine
replacement part available from Rinnai.
CARE & MAINTENANCE