Design of 3WAY VRF SYSTEM
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3. ELECTRICAL WIRING
Design of 3WAY VRF SYSTEM
Wiring sample
Wiring panel
(Front)
Wiring panel
(Bottom)
Electronic component box
Earth terminal *
3
Fit wires with cable clamps.
Fit power supply and Inter-unit
control wires with cable clamps
respectively (field supply).
Te rminal board for power supply
3P terminal board *
2
Inter-unit control wiring (U1, U2)
2P terminal board *
1
Inter-outdoor unit control wiring (1, 2)
2P terminal board *
1
Tightening torque
lbs.inch N · m
*1 11
31.25 0.25
*2 55
26.2 0.2
*3 73
48.2 0.4
Hollow to cut out opening *
4
Hollow to cut out opening Unit: in. (mm)*
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)
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)
*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.
3. ELECTRICAL WIRING
7'B⡿ྥࡅ:$<LQGE
TD831183-00_北米向け3WAY.indb 27 15/12/17 16:05:13
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