Functions; Fan Operation - Carrier Type A Electronic Control Manuel D'installation

Type A Electronic Control
Assembly
Wall-mounted control
• Remove the control cover, unscrewing the screw located in the
bottom part (Fig. 2). Secure the control to the wall, marking the
drill holes.
• Drill the holes previously marked.
Avoid drilling with the control already placed on wall.
• Prepare electrical connections between the control terminal block
and the unit control box panel as shown in the wiring diagram in
fig. 7.
For the specific connection between the control and the fan coil
unit refer to the diagram shown on the unit.
• Remove the cable protection guard and carry out the connec-
tions to the control terminal block (Fig. 3).
• After connections to the terminal block have been made, replace
the cable protection guard as shown in the figure (Fig. 4).
• Fix the control to the wall using the corresponding screw anchors .
• Put the control cover back to its place by reinstalling the screw
previously removed (Fig. 2).
IMPORTANT:
• All connections between the unit and the control must be
placed into a proper plastic conduit.
• Handle the control with extreme care. Do not touch electronic
components to avoid damaging them.
 
Fig. 2
 Screw
 Screw anchor
f Screw to close the control
Control
CONTROL TYPE "A"




Fig. 5
 On/OFF/fan speed selector
 Blue LED - cooling operation
 Seasonal changeover button
 Red LED - heating operation
 Energy saving button
6 Yellow LED - energy saving operation
7 Temperature knob
GB - 2
 
f
Control is used in 2-pipe systems.

Functions

Control have a knob to select the temperature, with a range from
0°C to 30°C, and room temperature is maintained at the selected

value.


Fan operation


With the fan speed selector  fan mode can be set either manually
or automatically.
In the manual mode it is possible to select three fan speeds (low/
medium/high) according to personal preference.
In the auto mode fan speed is regulated by a microprocessor in the
control in relation to the temperature chosen.
During installation, it is possible to select continuous fan operation
via the switch located on the electronic board (see paragraph "Dip-
switch configuration").
As an option, fan operation can be disabled during heating by
Fig. 3
Fig. 4