CLIMAVENETA i-ACCURATE i-AX Installation Manual - User And Maintenance page 41

FAN SPEED REGULATOR
CONDENSING CONTROL
The standard versions of the i-ACCURATE units come with
speed control function for EC fans on outdoor condensers. The
configuration parameters are described in the EVOLUTION con-
troller manual.
The i-ACCURATE units are supplied in the MODULATING ver-
sion with speed control function for EC fans on the outdoor unit
(i- BRE/i-BDC) and speed control for AC fans on the condensing
unit (BRE) or Dry Cooler (BDC), so as to maintain the condens-
1) For Frames 2 type i-AX and i-AW (model 18)
The i-ACCURATE type i-AX and i-AW for model 18 the regula-
tor direct mounting via pressure connection or indirect mounting
on housing bracket with capillary tube on discharge gas tube.
The regulator is factory set to a specific pressure (see tab.1).
If adjustment is needed, refer to instructions for proper proce-
dure. Improper adjustment may result in system damage or fail-
ure.
FACTORY SET
Refrigeranr
Cond. temp.°C
If desired set point differs from factory setting, follow the
procedure for setting before any installation:
1) Remove sealing plug and insert 2mm or 5/64" allen key into
setting screw.Turn allen key clockwise (+) or counterclockwise
(-) to readjust the setting (see Fig. 2).
F g i 2 .
i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
R410A
36
ing pressure within predefined limits when operating conditions
change, thus reducing the power consumption and noise of the
fans in conditions of changing condensing pressure. Below is a
description of the procedures for condenser control on the
MODULATING versions for outdoor units with AC fans (BRE /
BDC).
• Do not exceed safe working pressure.
• Do not touch housing if speed control is working because
there might be high temperatures.
• Do not turn setting screw more than 3 turns clockwise (+3).
2) After adjustment insert sealing plug and make sure that it is
properly fitted. IP65 protection requires firmly sealed plug.
Note: Partial voltage is applied even if motor is not running. Dis-
connect voltage for service on motor or on regulator.
U I A
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