Table of Contents
Advertisement
IMPORTANT INFORMATION
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�
OPERATIONAL OVERVIEW
How the hot water system works
This model has three electric heating elements with their own thermostat� A stainless steel cylinder stores water
which is heated by three heating elements located at the base of the cylinder� The automatic thermostat controls
the water temperature� The water heater connects directly to the mains water supply�
The heating elements can be connected to a Continuous or Off-Peak electricity supply. The continuous supply
is appropriate when the water heater capacity is less than the daily usage of hot water. The Off- Peak supply is
appropriate when the water heater capacity exceeds the daily usage of hot water. The Off-Peak supply allows
heating only for set periods and a volume of water sufficient for daily usage is heated during the set period and
stored. The Off-Peak supply is usually cheaper. Electricity supply types and tariffs vary according to the local
electricity authority�
Turning Water Heating System 'OFF'
If the water heater is not going to be used for only a few days, we suggest you leave it switched on. If it is necessary
to switch off the water heater, the switch is usually marked and located in the electricity meter box of the building.
Turning Water Heating System 'ON'
Switch on the electric supply to the heating elements� The switch is usually marked and located in the electricity
meter box of the building. Water heating will now occur as required. It may take a number of hours before hot water
is available�
DRAINING
Draining MUST BE carriedoutonlybyaauthorisedperson.
WatermaybeHOTduringdraining.
WARNING
Drain the water heater 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 water heater�
3�
Close all hot water taps�
4�
Operate the PTR valve easing gear - gently� Operating the PTR valve easing gear will relieve the pressure
in the water heater�
5�
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�
6�
Operate the PTR valve easing gear again� This allows air into the water heater and will result in water draining
through the hose�
Rinnai
8
SS QRE HW IM
Advertisement
Table of Contents
