En-1
Demand control kit (for VRF system)
INSTALLATION MANUAL
UTY-XWZXZH
For authorized service personnel only.
PART No. 9380828129
SAFETY PRECAUTIONS
WARNING
This mark indicates procedures which, if improp-
erly performed, might lead to the death or serious
injury of the user.
Do not turn ON the power until all work has been completed. Turning ON
the power before the work is completed can cause serious accidents such
as electric shock or fire.
• Ensure that any electrical installation is completed by a qualified person.
• Ensure the electrical installation is installed in accordance with AS/NZS
3000.
CAUTION
This mark indicates procedures which, if improp-
erly performed, might possibly result in personal
harm to the user, or damage to property.
ACCESSORIES
Name and shape Q’ty Application
Installation
manual
1
This manual
Terminal (with cable)
1
Connect the cable from the DRED
to this terminal
Tapping screw
1
For fixing the terminal
Push mount cable tie
1
For fixing the signal transmission
cable (demand)
EMI core
(large)
2
Attach to the cables of the outdoor
unit.
EMI core
(small)
1
Cable tie
3
For fixing the EMI cores
DRM label
1
Attach this label on the outdoor
unit.
AS/NZS 475 SEL
DRM1
DC Power
DRM2 DRM3
CABLE REQUIREMENTS
Use Size Cable type
Max. length
Signal transmission cable
(locally purchased): for
demand control signal
transmission
0.5 to 1.5
mm²
Double insulated
Use cable conformed
to AS/NZS 5000.2.
30 m
MOUNTING THE TERMINAL
CN150 WHT
Terminal (with cable)
(accessory)
Tapping screw
(accessory)
For details of the outdoor
unit, refer to the installation
manual of the outdoor unit.
Tightening torque
Tapping screw (accessory) 2.0 to 3.0 N·m (20.4 to 30.6 kgf·cm)
Connecting the cables
CAUTION
Seal the wiring route hole with putty (Locally purchased) such that there
are no gaps.
Small insects or animals that are trapped in the outdoor unit may cause a
short circuit in the electrical component box.
1 2 3 C
25 10
1 2 3C
Push mount
cable tie
(accessory)
(Unit: mm)
1: DRM1
2: DRM2
3: DRM3
C: COMMON
Push mount cable tie (accessory of outdoor unit)
(bundle with VRF transmission cable)
Signal transmission cable (demand)
Tightening torque
Terminal screws (M4) 0.8 to 1.2 N·m (8.2 to 12.2 kgf·cm)
ATTACHING THE EMI CORES
• The position of the EMI core varies depending on the model.
• Attach the EMI core correctly. Incorrect attachment may affect the recep-
tion of nearby television, radio, and other device.
CAUTION
Front of the
outdoor unit
PC board
Capacitor
Keep the EMI
core within this
range
Service
panel
Make sure that the EMI core
does not touch the service panel.
Otherwise the EMI core may be
damaged due to vibration of the
outdoor unit and fall off.
Attach the EMI core so that it does
not protrude forward from the top
surface of the capacitor on the PC
board.
Fixing the EMI core
Through the cable tie to the slit of core and bind the cables.
• When binding
the core to the
cable passed
through the
core.
• When binding
the core to an-
other cable.
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POSITION OF THE EMI CORES
AJY072/090LE*** model
CN106 WHT
CN113 RED
70 to 100 mm
EMI core (large)
(accessories)
CN104 WHT
CN122 RED
80 to 110 mm
EMI core (large)
(accessories)
CN139 BLU
30 mm
or more
EMI core (small)
(accessories)
AJY108LE*** model
CN106 WHT
CN113
RED
130 to 210 mm
EMI core (large)
(accessories)
The cable
covered with
black tube
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CN102 BLU
CN109 GRN
40 to 70 mm
EMI core (large)
(accessories)
Wires
(yellow ×1, red ×1, pink ×1,
blue ×1, black ×1)
CN139 BLU
50 to 90 mm
EMI core (small)
(accessories)
AJY126/144LE*** model
CN105 GRN
CN106 WHT
CN113 RED
CN114 WHT
110 to 140 mm
EMI core (large)
(accessories)
Wires
(white, black)
CN102 BLU
CN109 GRN
30 to 50 mm
EMI core (large)
(accessories)
Wires
(white, black)
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CN139 BLU
50 mm
or more
EMI core (small)
(accessories)
FIELD SETTING
Power limit settings
Current release values are set with the push buttons of the outdoor unit.
For the setting method, refer to the Design & Technical Manual.
No Setting item
7 segment display
Factory
setting
First 2 digits Last 2 digits
80
Two digits of the
cooling current
release value of
DRM2
00.x A
8 0
0 0
01.x A 0 1
⁞ ⁞ ⁞
49.x A 4 9
81
First decimal
place of cooling
current release
value of DRM2
xx.0 A
8 1
0 0
xx.1 A 0 1
⁞ ⁞ ⁞
xx.9 A 0 9
82
Two digits of the
heating current
release value of
DRM2
00.x A
8 2
0 0
01.x A 0 1
⁞ ⁞ ⁞
49.x A 4 9
83
First decimal
place of heating
current release
value of DRM2
xx.0 A
8 3
0 0
xx.1 A 0 1
⁞ ⁞ ⁞
xx.9 A 0 9
84
Two digits of the
cooling current
release value of
DRM3
00.x A
8 4
0 0
01.x A 0 1
⁞ ⁞ ⁞
49.x A 4 9
85
First decimal
place of cooling
current release
value of DRM3
xx.0 A
8 5
0 0
xx.1 A 0 1
⁞ ⁞ ⁞
xx.9 A 0 9
86
Two digits of the
heating current
release value of
DRM3
00.x A
8 6
0 0
01.x A 0 1
⁞ ⁞ ⁞
49.x A 4 9
87
First decimal
place of heating
current release
value of DRM3
xx.0 A
8 7
0 0
xx.1 A 0 1
⁞ ⁞ ⁞
xx.9 A 0 9
ATTACHING THE DRM LABEL
Attach the DRM
label on the position
shown in the figure of
the outdoor unit.
Rating label
DRM label
(accessory)
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