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Service Manual
1-67
INSTALLATION
7.3 Electrical Wiring for Outdoor Unit
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(1) Connect the power supply wires to L1, L2 and L3 for the three-phase power source on the terminal
block TB1 and ground wiring to the terminal in the electrical control box.
(2) Connect the communication cables between the outdoor and indoor units to the TB2 terminals 1 and
2 on the PCB1. As for the communication cables between outdoor units in the same refrigerant cycle,
connect them to the TB2 terminals 3 and 4 on the PCB1. When shielded cabling is applied (M4),
proper bonding and termination of the cable shield is required as per Johnson Controls guidelines.
Plenum and riser ratings for communication cables must be considered per application and local
code requirements. Communication cabling shall be a minimum of AWG18 (0.82mm
2
), 2-Conductor,
Stranded Copper.
(3) Insert the communication cables into the PVC tube “VW-1 600V” (Accessory) to separate from the
power supply wirings and the communication cables in the outdoor unit.
Then, tighten both ends of the PVC tubing with the cable bands (accessory) in order to secure the
PVC tubing to the communication cables.
(4) Tighten screws for the terminal block according to the following table.
< Required Tightening Torque >
Size
Tightening Torque
M4
0.7 to 1.0
IWÂOEV
(1.0 to 1.3
1ÂP
M5
1.5 to 1.8
IWÂOEV
(2.0 to 2.4
1ÂP
M6
3.0 to 3.7
IWÂOEV
(4.0 to 5.0
1ÂP
M8
6.6 to 8.1
IWÂOEV
(9.0 to 11.0
1ÂP
M10
13.3 to 17.0
IWÂOEV
(18.0 to 23.0
1ÂP
Holes for
Power Supply Wiring
at Front and Back
of Unit (2-1/16)
Secure with
a cable clamp.
PVC Tube
“VW-1 600V”
(Accessory)
Cable Clamp
(For Securing Power Supply Wiring)
TB1
TB2
PCB1
Terminal Block for
Power Supply Wiring (TB1)
Power Supply Wiring
Cable Clamp (Accessory)
Secure with accessory screw.
Communication Cable
Metal Band
Secure 2 segment of
communication cable.
Holes for Power Supply Wiring
at Front and Back of Unit (2-1/16)
Holes for Communication Cable
at Front and Back of Unit (2-1/16)
L2
L3
L1
Ground Wiring
Attach
insulation
sleeve.
Terminal Block for
Power Supply Wiring (TB1)
Ground Wiring Terminal
(Connect securely
cable.)
Cable Band
NOTE:
Hermetically seal the entry
of conduit tubing by using putty
to seal against moisture.
For Power Supply Wiring
72 Type: 1-11/32 (Conduit Hole)
96, 120 Type: 1-23/32 (Conduit Hole)
For Communication Cables
1-1/32 (with Rubber Bush)
TB2
O.U. PCB
for O.U. to O.U.
for I.U. to O.U.
1 2
3 4
Communication Cable
between Outdoor Units
Communication Cable for
Indoor Unit to Outdoor Unit
PVC Tube (Accessory)
Metal Band
Cable Band (Accessory)
Cable Band (Accessory)
Inside of Unit
Outside of Unit
Содержание YVAHP072B31S
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Страница 10: ...viii Service Manual ...
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Страница 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Страница 559: ...Service Manual 1 543 INSTALLATION 7 7RXFK DFN WR QLVK WKLV VHWWLQJ The screen returns to the Service Menu screen 7 ...
Страница 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
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Страница 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Страница 983: ...Service Manual 2 63 OPERATION Clipped Ceiling Type Grille for Front Discharge 2SWLRQDO Decorative Panel 2SWLRQDO ...
Страница 1184: ...2 264 Service Manual OPERATION 7 Touch on Return to Group sel to return to Setting Group Selection 7 ...
Страница 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Страница 1425: ...Service Manual 3 111 TROUBLESHOOTING Surge Absorber SA Surge Absorber SA Surge Absorber SA 3RVLWLRQ RI 6XUJH EVRUEHU 9 9 1 1 1 ...
Страница 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
Страница 1657: ...Service Manual 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting ...
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Страница 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Страница 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Страница 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
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Страница 1796: ... 2015 Johnson Controls Inc SM 15001 ...