3
3
H
EATING
S
YSTEM
C
ONTROLLER
(UI)
The controller/user interface that is supplied with the Dimplex A-Class heat pump is used as a heat pump controller
as well as a heating and domestic hot water (DHW) controller. It is also the preferred option for use as a temperature
control device.
When your heat pump system was installed, the installer would have discussed with you the different temperature
control device options available. While only one user interface is currently available per system, there are additional
options of either temperature probes or mechanical thermostats, which can be used to control the temperature in up
to four zones.
Mechanical thermostats provide less control over the heating system, while the temperature probe option allows the
heat pump to sense changes in demand and adjust accordingly. The temperature probe option is generally
recommended over the mechanical thermostat option.
A zone is defined as the physical area of your home in which temperatures are controlled by each individual device.
For example, you might have the user interface installed in your living area, in which case this may be referred to as
zone 1. You may also install a temperature probe upstairs in the sleeping/bedroom area, which would then be
designated as zone 2, and so on. Extra zones are an additional, optional feature of the heating system. The standard
package comes with one User Interface and the possibility of four separate zones.
F
IGURE
3: O
PERATING
THE
MAIN
USER
INTERFACE
(UI)
