Watts RF Multi Overview Secure

Watts RF Multi Overview Secure
Watts RF Multi-zone control system - overview
The heat pump runs whenever the buffer tank needs more heat whilst the buffer tank
provides heat to the rest of the system. The buffer tank is kept hot all the time so that it can
respond immediately to a need for heat.
In each heating zone the temperature is set on each thermostat, which is the only way of
setting room temperatures. Two different temperatures are set, Comfort, the room
temperature when the room is in use, and Economy, the temperature when not in use. The
user can change between the two with a couple of key presses on the thermostat.
Regulation of floor slab temperature
The thermostats also have a floor temperature sensor to keep the floor slabs on standby by
maintaining the floor at a minimum temperature so that when the heating is required it can
respond quickly.
This means the floor may be heated when the room is already at the required room
temperature. This is normal.
The thermostats also have a maximum floor temperature to stop the floor getting
uncomfortably hot even if the room hasn’t met its set temperature.
Interaction between zone thermostats and the central controller.
Each zone will run at its set temperature whether that is Comfort or Economy unless the
central controller is in Economy mode; and then the zone runs at the set temperature minus
4°C whether the zone is in Comfort or Economy mode.
Central Controller mode
Use  and  buttons to change
the operating mode
Comfort manual override
Zone Thermostat mode
Use the OK button to change the operating mode
Zone will run continuously in Comfort mode
Zone will run at Economy temperature set on
thermostat.
Zone will not run.
© Central Heating New Zealand Ltd
April 2012
Economy manual override
or
Zone will run at set the temperature minus
4°C whether it is on Comfort or Economy.
Zone will not run.
Auto
or
Zone will run at set the temperature during
‘on’ periods and at 4°C less than the set temperature on
thermostat during ‘off’ periods, whether it is set at
Comfort or Economy.
Zone will not run.
Frost protection
All zones will only run if the temperature drops to 5°C or
whatever is set to the frost protection temperature.
Off
The central controller switches off and all zones stop
heating in all modes.
See attached user guide for programming the time schedules.
© Central Heating New Zealand Ltd
April 2012
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