Aspen Pumps Fan Speed Instrucciones De Instalación página 2

Fan
Speed
Controller
Controls head pressure
to air conditioning and
refrigeration systems
Technical Specification:
Q
Two models available: one for
cooling only, and the other for
heating and cooling
Q
Condenser temperature coil sensor
Q
Max 3 amp output
Q
Push on connectors
Q
Minimum speed adjustment
Q
230V 50-60 Hz
Q
Power consumption internal : 8 W
Q
Heat pump model: reversing valve
input 24 to 240V A.C. opto isolated
Q
Setpoint 30 to 60ºC
Description:
The "ASPEN FAN SPEED CONTROLLER" is designed
to regulate the condensing pressure of your air
conditioner in "cooling" mode in case of outdoor
working temperatures below +21°C with a minimum
of –5°C. The goal is to obtain a condensing pressure
between 230 psig and 245 psig for installations
running on R22/R407C with a positive difference of
+8% towards installations running on R410a. For the
air conditioners "heat-pump" type there is the "FAN
SPEED CONTROLLER HEAT PUMP" which has a
terminals to be connected parallel to the 4-way valve
in "heating" mode. This connection type is in order
to let the controller know the difference between
"cooling mode" and "heating mode" and to adapt
regulation according to the situation.
Installation Notes:
The fan speed controller is not waterproof and
should be installed in the electrical compartment of
the condensing unit in order to avoid short-circuits by
direct influence of rain or humidity.
A. Disconnect the power supply from the fan motor
and connect it to L (= live), N (= neutral) and also
earth (= E). Starting from the controller the fan motor
will receive its electrical supply again through the
Cooling
version only
Motor
N L E ML MN
N
L
E
GB
Minimum Fan
Speed Control
Min
Speed
Set
Point
Temp
Temp
T2 T1 Blue
Red
Capacity
Winding
connectors ML (= motor live) and MN (= motor
neutral). In case of installation on a heat-pump unit,
the connectors T1 & T2 have to be connected in
parallel on the connectors of the 4-way valve. After
that, the small mode switch on the side of the
connector box has to be positioned to the left or to
the right side: to the left side in case the 4-way valve
is under tension in "heating" mode (= the standard
position of the mode switch) or to the right (= very
exceptional) in case the
4-way valve is not
under tension
"heating" mode.
B. Connect the thermal
sensor to the terminals
on the controller and
fix the sensor side to a
bend of the condenser
coil in the
between an entrance point and outgoing point of
the refrigerant tubing. In case of any doubt, measure
the condensing temperature and select the point
which is closest to the saturation point.
C. If possible put a thermal paste on the sensor or
isolate it in order to obtain the best measurements
and working results.
D. Finish the electrical wiring correctly after
modification of the unit in order to prevent short-
circuits through unconnected wiring and always use
well insulated materials.
Setting up controller:
In the right upper corner of the controller box you
will find a potentiometer in order to set the minimum
fan speed (= MIN SPEED) of the condenser fan while
the ASPEN FAN SPEED CONTROLLER is working. This
minimum setpoint has to be set in such a way that
the fan never stops running even when wind
pressure on the fan occurs, this is in order to avoid
burning out the fan motor.
Next to the set point is a second potentiometer
(= SET POINT) in order to set the desired condensing
temperature
CONTROLLER is working. The standard position of
this potentiometre is set between +45°C and +50°C
condensing temperature, which is ideal for an air
conditioner
temperatures. Apart from this you have the mode
switch position in relation to the electrical supply on
the 4-way valve in "heating" mode as already
explained in point A.
Every modification of the standard
programmation of the potentiometers
according to the descriptions above is
under the complete responsibility of the
installer, as well as all damage due to bad
installation or bad use of the "ASPEN FAN
SPEED CONTROLLERS".
Heating
version only
Motor
N L E ML MN T2
N
L
E
in
middle
while the ASPEN
working with lower
Minimum Fan
Speed Control
Min
Speed
Set
Point
Temp
Temp
T1
Blue
Red
Capacity
Winding
Reversing
valve coil
FAN SPEED
outdoor
Mode switch
To reversing
valve supply