45
2. Room temperature control
Isolate the electrical supply to the ESTIA system
Install the 2
nd
ESTIA remote controller (RC), for room temperature control, using 2 core
screened cable. The maximum cable length specified, for the 2
nd
RC is 50m
Position the 2
nd
RC as detailed in the installation instructions supplied with the controller. It is
important to position the 2
nd
RC correctly as poor positioning will affect the accuracy of the
room temperature control
The remote controllers need to be configured as header and follower controllers using the
DPSW’s on the back of each remote controller (see below).
For example a customer requests that the remote
controller on the hydro unit is set as the header device and
the 2
nd
RC, in the room, is set as the follower to measure
room air temperature. Set the DPSW’s as shown below:
Note:
Do not set DPSW2, on both the HEADER and FOLLOWER remote controllers, to ON.
This will result in poor temperature control in the room
Restore the electrical supply to the ESTIA system
Change FC40 from 0 to 1. This will allow the ESTIA system to control using the air
temperature measurement form the 2
nd
RC
For HEATING mode:
Set FC94 to the required setting. This will set the maximum room air temperature that can be
selected on the remote controllers when running in heating mode.
Set FC95 to the required setting. This will set the minimum room air temperature that can be
selected on the remote controllers when running in heating mode.
Set FC9D to the required setting. This will set the initial target water temperature of the
system, when the electrical supply is restored to the ESTIA system, when running in heating
mode
Set FCB1 to the required setting. This will select the required control option for the room
temperature control when running in heating mode
For COOLING mode:
Set FC92 to the required setting. This will set the maximum room air temperature that can
be selected on the remote controllers when running in cooling mode
Set FC93 to the required setting. This will set the minimum room air temperature that can be
selected on the remote controllers when running in cooling mode.
Set FC96 to the required setting. This will set the initial target water temperature of the
system, when the electrical supply is restored to the ESTIA system, when running in cooling
mode
System Commissioning:
Measure the actual room temperature using a locally supplied temperature measuring device.
Measure the room temperature using the sensor temperature monitoring function on the
remote controller (see page 51 -use code no. 03). This must process be completed on the
remote controller that will be used to measure the room temperature
Compare the 2 temperature readings. If the temperature readings are the same then there is
no requirement to adjust the room temperature offset FC’s. If there is a difference between
the 2 temperature readings then adjust the room temperature offset using remote controller
function codes (RCFC) RCFC02 for heating mode and RCFC03 for cooling mode
Remote Controller DPSW
– Bit Number
1
2
3
4
Hydro unit
(HEADER)
OFF
OFF
OFF
OFF
2
nd
RC
(FOLLOWER)
ON
ON
OFF
OFF
