Daikin UATYQ250MCY1 Manuel D'installation page 38

Circlip
Clamp
Details view for clamp
and circlip
STEP 7
- Connect Belimo actuator, LF24-SR (item 1) with label 'RA' , which is now located at the assembly damper on the
indoor base panel to terminal block with label 'RA' inside the junction box.
- There are four wires on the actuator with diff erent colours (black, red, green and white colours). Connect the
wires as below:
Black colour wire - connect to fi rst pole of
Red colour wire
Green colour wire - connect to third pole of
White colour wire - connect to fourth pole of
(You may refer to sticker wiring diagram which is
located on the front cover of junction box.)
Wrong wiring connection may cause the malfunction on actuator or economizer controller board or both. Tie the wires
with releasable cable ties under the junction box.
- Then, connect Belimo actuator, LF24-SR (item 1) with label 'OA' , which is now located at the assembly damper
on the side panel to terminal block with label 'OA' inside the same junction box. Follow the same method used
for wiring connection between actuator 'RA' and terminal block 'RA' . Next, attach the side panel to the unit. You
may need to do proper arrangement on the actuator wires by using cable ties (fi eld supply) before attach the
side panel to the unit.
36
2pcs of Nuts
(screw tightly)
a) Mount the actuator
to the shaft of damper,
then lock with circlip and
clamp.
b) Insert screw
M4x12, then bring
the support bracket
closer to the shaft
of damper. Note:
support bracket is
located on the top of
damper.
Item 2
terminal block with label 'GND' .
- connect to second pole of
terminal block with label
'+24V' .
terminal block with label 'DCV' .
terminal block with label 'FB' .
Side panel in standard
unit which is removed in
step 5.
Circlip
Clamp
Item 1 (with label 'OA')
TO PCB3 (ECO)
CN_ACT_RA
TB RA TB OA
GND +24V DCV FB GND +24V DCV
ACTUATOR RA
CAUTION
Junction
box
Side panel comes with
economizer kit box which is
assembled with actuator in
step 6. Attach this panel to
the unit.
Detail view for actuator
Top view for damper
12
110 Ø3
150
Support bracket
Fasten M4x16 screw on this hole, do
not fully insert the screw thread, but
insert only 2/3 of the thread.
TO PCB3 (ECO) TO PCB3 (ECO)
CN_ACT_OA CN_C02
Sticker wiring
TB C02
FB GND +24V FB
diagram on
the front cover
of junction
box
ACTUATOR OA C02 SENSOR
Label 'RA'
Label 'OA'
Terminal
block with
label 'RA'
- to be
connected
with actuator
with label
'RA'
Terminal block with label 'OA' - to be
connected with actuator with label 'OA' .
Detail view of junction box
Labelled
with 'R'
symbol