Panasonic U-72MF2U9 Technical Data Manual page 43

3. ELECTRICAL WIRING
3. ELECTRICAL WIRING
Wiring sample
Inter-unit control wiring (U1, U2)
Inter-outdoor unit control wiring (1, 2)
Terminal board for power supply
*1
*2
*3
Wiring panel
(Front)
Wiring panel
(Bottom)
*4 ・ Hollow for jigsaw holes (Maximum allowed per hole is ø1-7/8" (ø48).)
・ Be sure to use waterproof conduit for electrical wiring to the outdoor unit.
・ Protective structure is necessary to avoid raindrops through wiring ports.
・ Hollow to cut out openings for wiring ports on the panel with a jigsaw.
Electronic component box
2P terminal board *
1
2P terminal board *
1
3P terminal board *
2
Earth terminal * 3
Tightening torque
lbs.inch N · m
11 3 1.25 0.25
55 2 6.2 0.2
73 4 8.2 0.4
Fit wires with cable clamps.
Fit power supply and Inter-unit
control wires with cable clamps
respectively (field supply).
Hollow to cut out opening *
Hollow to cut out opening *
4
ø1-3/4" (ø44) (Power supply wiring inserting port: knockout holes)
ø1-3/8" (ø35) (Power supply wiring inserting port: knockout holes)
ø7/8" (ø23) (Inter-unit control wiring inserting port: knockout holes)
4
ø1-3/8" (ø35) (Power supply wiring inserting port: knockout holes)
ø7/8" (ø23) (Inter-unit control wiring inserting port: knockout holes)
ø1-3/4" (ø44) (Power supply wiring inserting port: knockout holes)
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Design of 3WAY VRF SYSTEM
Design of 3WAY VRF SYSTEM
Unit: in. (mm)
1
2
3
4
5
6
7
8
9