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TEMPERATURE CONTROLLERS
The purpose of the Temperature Controllers is to enable the user to have complete control over the
hot water unit. Used correctly, the hot water unit will supply hot water at the temperature selected,
even when the water flow is varied, or when more than one tap is used. Adjustments to the operation
of your hot water unit can be made with any of the Temperature Controllers. Each Temperature
Controller can be individually programmed.
Various water temperatures (°C) can be selected as follows:
Kitchen Controller:
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 55°C* ( 60, 65°C HD )
Bathroom Controller
Hot Water Delivery: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50°C
Bath fill Delivery: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48°C
If a temperature 43°C or higher is selected on any Controller and this temperature is then decreased
to below 43°C and increased again whilst the water is running, the maximum selectable temperature
will become 43°C. This provides additional safety for the consumer.
Suggested temperatures are:
Kitchen 50°C ~ 55°C* ( 65°C HD ) Shower 39°C ~ 43°C Bath fill 39°C ~ 45°C
* This temperature may not be available on all installations
These temperatures are suggested starting points for selection. You may find higher or lower
temperatures are more comfortable. Maintaining lower temperatures helps to save energy. To obtain
water temperatures lower than 37°C simply add cold water.
Temperature Controllers are an optional extra. ‘Universal’ and ‘Deluxe’ Temperature Controllers
can be fitted. Universal Controllers allow temperature selection only. Deluxe Controllers have
temperature selection, bath fill and clock functions.
Temperature Controllers allow the temperature to be set from various locations. The temperature
selected will be available to all outlets.
Controller Options
Water Heater Model Controller Options Kitchen Bathroom 1 Bathroom 2 Bathroom 3
Deluxe Option 1 MC-70-2A BC-70-2A BC-70-2A MC-91-1A †
Deluxe Option 2 MC-70-2A BC-70-2A MC-91-1A MC-91-1A
Infinity 26i or 32e
HD50i or HD70e
Universal Option MC-91-1A * MC-91-1A MC-91-1A MC-91-1A
Note: The maximum available controllers configurations are shown for each model.
† When 3 deluxe controls are installed the option of adding a 4
th
controller is only available on the Infinity and HD models.
* When a MC-91-1A Temperature Control is used for this application the installer may set this unit as a master controller.
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