Frico Thermozone WAC 300 Serie Manual De Instrucciones página 21

regulation are possible, see wiring diagram
pages 4-5.
The hatch on the underside of the unit is
opened by turning the locking pins 1/4 of a
lap. The connection should be made with a
cable type S05VV-U, A05VV-R or similar.
On the upper side of the unit there are
knock-outs, 3 pcs ø 29 mm. The cable-glands
used must guarantee the protection class
requirements!
Adjusting the unit and the air stream
Direction and speed of the air stream should
be adjusted with regard to the load on the
door. Pressure forces the air stream to bend
towards the interior of the room (when the
room is heated and the outside is cold). To
withstand the load, the air stream should be
directed outwards. An angel up to 15° can be
recommended. The more load caused by
negativ pressure, temperature differences
and wind, the more should the air stream be
directed outwards.
A baffle on each side of the doorway will
improve the efficiency of the air curtains.
Basic air flow settings
The air flow is set with the air flow selector so
that the speed of the air is 3-4 m/s 1 m above
the floor. The direction of the air stream and
the air speed may need to be adjusted more
exactly depending on the load on the door.
Trouble shooting
If the fans stand still, check the following:
a) Power supply; check fuses, circuit-breaker,
time switch (if any) that starts and stops
the unit.
b) That the air flow selector is correctly set.
c) That the position limit switch is working
(if any).
If the error cannot be fixed, please contact
qualified service technician.
If there is no heat, check the following:
a) Thermostat settings and actual
temperature.
b) That the output selector (if any) is set
correctly.
c) The cirkulation pump
If the error cannot be fixed, please contact
qualified service technician.
Thermozone WAC 300
Temperature regulation
VR20/25, set of valves
This valve set is suitable when the possibility to
adjust and shut off the water flow (for the purpose
of maintenance) are required. The supply of heat
is controlled by a thermostat. Pipe dimension for
VR20 is DN20 ( 3 / ") and for VR25, DN25 (1").
4
Stop valve
Adjustment valve
2-way regulation valve
Valve motor
Bypass valve
• AV20/25, stop valve
Stops the water supply to SW, Consists of a ball
valve which is either open or closed.
• JV20/25, adjustment valve
To adjust the water to desired flow. (kv-value for
JV20: 0,13 - 5,9. kv-value for JV25: 0,17 - 8,52).
When maintenance is needed, the water can be
stopped with the stop and adjustment valves. Table
for the adjustment valves JV20 and JV25, see
separate sheet.
• TVV20/25, 2-way regulation valve
Pressure class PN16, Maximum pressure 2000kPa
(20Bar), maximum pressure fall TVV20, 100kPa
(1,0Bar), Maximum pressure fall TVV25, 62kPa
(0,62Bar). The kv value is adjustable in 3 stages:
TVV20 kv 1,6
TVV25 kv 2,5
• SD20, valve motor on/off 230V
A thermostat controls the valve motor to open abd
close, therby regulating the supply of heat to SW.
The closing time of the valve of 5 seconds,
prevents sudden pressure changes in the pipe
system. IP40
• BPV10, bypass valve
A thermostat controls the valve motor to open abd
close, therby regulating the supply of heat to SW.
The closing time of the valve of 5 seconds,
prevents sudden pressure changes in the pipe
system. IP40
xControls the the supply of heat by opening/
closing the valve or starting/stopping the fan motor.
See wiring diagrams on page 6-10.
<<
GB
VR20 VR25
AV20 AV25
JV20 JV25
TVV20 TVV25
SD20 SD20
BPV10 BPV10
kv 2,5 kv 3,5
kv 4,0 kv 5,5
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