18
PMGB0374
Table 8.1 Recommended Wiring Capacity and Size
Model
Power
Supply
Minimum Wire Thickness
[AWG (mm
2
)]
GFCI
Main Switch
MCA
(Minimum
Circuit
Ampacity)
Power
Supply
Wiring Size
(Main)
Ground
Wiring
Size
Communication
Cable Size
Nominal
Current
Nominal
Sensitive
Current
Nominal
Current Fuse
[A]
[mA]
[A]
[A]
[A]
(H,Y,C)IFE006B21S
1~,
208/230V
60Hz
18
(0.82)
18
(0.82)
18
(0.82)
15
30
15
15
0.4
(H,Y,C)IFE008B21S
0.4
(H,Y,C)IFE012B21S
0.6
(H,Y,C)IFE015B21S
0.9
(H,Y,C)IFC006B21S
0.4
(H,Y,C)IFC008B21S
0.4
(H,Y,C)IFC012B21S
0.6
(H,Y,C)IFC015B21S
0.9
NOTES:
1) Follow local codes and regulations when selecting field wiring.
2) Select a GFCI with an activation speed of (0.1 second or less).
3) Total operating current is less than 12A.
●
Check for the recommended size of GFCI shown in Table 8.1.
●
Between indoor and outdoor units, use communication cabling that is a minimum of 18-Gauge,
2-Conductor, Stranded Copper. Shielded cable must be considered for applications and routing in
areas of high EMI and other sources of potentially excessive electrical noise to reduce the potential for
communication errors. When shielded cabling is applied, 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. Total cable length should not exceed
3281 ft (1000m).
● Select the wiring size, GFCI in accordance with the regulations for each region, the "Installation and
Maintenance Manual", and the dedicated electrical circuit that must be used.
●
Outside of the indoor unit, installation of the power supply wiring, communication cable, and wired
controller cable should be spaced as far apart as possible.
NOTICE
8.3 Position of Electrical Wiring Connection
The connection at the terminal block for the indoor unit is shown in the figure below. Check the arrangement
for the outdoor unit before performing any wiring. Tighten screws in the terminal block as indicated in the
torque specification table shown below.
Tightening Torque for Terminals
Screw Size
Tightening Torque
TB1
M4
0.7 - 1.0
(1.0 - 1.3
ft·lbs
N·m)
TB2
M3.5
0.9
(1.2
ft·lbs
N·m)
Terminal Block for
Power Supply Wiring
TB1 (black)
Terminal Block for
Communication Cable
TB2 (white)
Mp/N
S/L2
R/L1
A
B
1
2
Содержание CIFC006B21S
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