Water Control; General Information - Rinnai Infinity 20 External Operation And Installation Manual

2.7 WATER CONTROL

2.7.1 GENERAL INFORMATION

Only one MC model water controller can be designated as the 'Master' water controller. This water controller is
normally used in the kitchen and usually has a maximum temperature of 55°C, which is sufficient for almost all kitchen
applications. Temperatures higher than 55°C are possible but usually unnecessary and will result in higher gas use
and increase the risk of burns.
The remaining water controllers are designated 'sub' controllers and are for use in bathrooms, toilets and laundries.
The temperature limit for all 'Sub' controllers is always 50°C to minimise the risk of burns in these areas.
An installation can have up to 4 universal MC-601 water controllers.
Deluxe kitchen and deluxe bathroom water controllers are also available and various combinations of universal and
the deluxe water controllers can be used with the following limitations:
•
A maximum of 4 water controllers can be fitted.
•
Only ONE master controller can be installed. This can be a deluxe kitchen or an universal (when programmed
as a master controller) water controller.
When a deluxe kitchen is fitted it will always function as a master controller, this is the default
setting and can not be changed.
IMPORTANT
•
Up to TWO deluxe bathroom water controllers can be installed.
•
The FOURTH water controller in any installation must be an universal water controller.
For more information regarding deluxe kitchen and bathroom water controllers, contact Rinnai or visit: www.rinnai.it.
Location
• Do not install water controllers near a heat source, such as a cook top, stove or oven. Heat,
steam, smoke and hot oil may cause damage.
NOTE
• Do not install water controllers outdoors unless protection from water/dust ingress and
sunlight are provided.
• The water controller set as the master water controller must not be installed in a bathroom.
• Do not install water controllers in direct sunlight.
• Do not install water controllers against a metal wall unless the wall is earthed.
• Water controllers must not be installed where chemicals such as benzene, alcohol, turpentine,
hydrogen sulphide, ammonia, chlorine or other similar chemicals are in use.
The Water controller is a water resistant device, however excessive exposure to water may result
in damage to the water controller. Durability is improved when positioned outside the shower
recess.
• Avoid direct exposure to water or steam as these conditions may cause a malfunction.
• Water controllers must be installed in shaded and clean locations. They should be fitted out of
reach of children (suggested height from floor to be at least 1.5m). Water controllers must be
installed at least 40cm above the highest part of a sink, basin or bath.
• When cleaning your water controller use only a damp cloth and a mild detergent.
Communication cables
Wired water controllers operate at an extra low voltage (12 Volts DC) which is supplied from the water heater, a 10m
long communication cable is supplied for connection to the water heater. It is possible to prolongue the communication
cable by using a similar one, up to a total max length of 50m. It is not recommended to install the communication
cable near by house electric cables: interfearence may easily happen causing system malfunctions. In these cases we
recommend to use proper shieldied cables.
When connecting the cables to water controller or heater the polarity is not important: either colour wire can be
connected to either terminal.
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