Operation Manual

07
LO-LINE RC & LO-LINE RC Heater/Cooler
9.0 Commissioning Procedure (continued...)
Heat Pump and Low Water Temperature Systems
In heating mode, the control system brings the fan on when the
water in the coil reaches 32°C. For low water temperature systems,
eg heat pump systems, it is possible to switch off the boost speed
option in automatic mode so that the unit runs in medium or normal
fan speeds depending on demand. This means low outlet air
temperatures from the unit are avoided when the room temperature
is low in relation to the set temperature.
This facility can be switched on or off by following the instruction
below
l Isolate electrical supply.
l Remove outer cover.
l Change switch 1 position according to requirements
(see fig. 4).
l Refit outer cover.
l Switch on electrical supply.
Displayed Temperature Calibration
Depending on the location of the unit there may be a difference
between the temperature at the unit and the temperature in the
middle of the room being heated.
The displayed temperature calibration function enables
calibration in heating mode of the displayed temperature to the
actual room temperature using the following procedure:
l Run the fan convector until room conditions stabilise.
l Press the ‘On/Off’ key and ‘+’ key for 5 seconds (the display
will flash, alternating between ‘ro’ and the calibration
temperature.
l Calibrate the displayed room temperature by using the
‘+’ and ‘-’ keys with the fan running.
l Press the ‘On/Off’ key to finish
Fan Pulse
Fan pulse mode causes room air to be drawn over the air
temperature sensor periodically to maintain room temperatures
more effectively. In certain circumstances, for example when
units are over-sized in relation to the heat loss of the room, it
may be necessary to turn off this function. Use dipswitch 3
according to requirements.
Dipswitches
Fig. 4
Switch Switch Down Switch Up
1 Auto Fan Speed Selection 2 Speed 3 Speed
2 Heating / Cooling Heating Heating & Cooling
3 Fan Pulse Off On
4 Temperature Display °F °C
8.09.0
23678 Lo-Line RC manual UK 27/06/2011 09:28 Page 8