Panasonic U-72MF2U9 Technical Data Manual page 42

3. ELECTRICAL WIRING
WARNING
When connecting each power wire to the terminal, follow the instructions on "How to connect wiring to the terminal" and fasten the
wire securely with the fixing screw of the terminal board.
How to connect wiring to the terminal
For stranded wiring
(1) Cut the wire end with cutting pliers, then strip the insulation
to expose the stranded wiring approx. 3/8" (10mm) and tightly
twist the wire ends.
(2) Using a Phillips head screwdriver, remove the terminal screw(s)
1
on the terminal board.
(3) Using a ring connector fastener or pliers, securely clamp each
stripped wire end with a ring pressure terminal.
(4) Place the ring pressure terminal, and replace and tighten the
removed terminal screw using a screwdriver.
2
Checking voltage of terminal board
Check if the wiring AC200V or more is connected to the inter-unit
3
control wiring connection terminal board.
First, turn off the power and then proceed the work.
If AC200V or higher voltage is mistakenly applied to the P.C. board,
the fuse (FUSE3, 0.4A) of outdoor control P.C. board is broken and
the P.C. board will be protected.
4
In this case, reconnect the wires correctly and disconnect the 2P connector (BLU, OC, CN76) on P.C. board.
Then, replace that connector with the 2P connector (BRN, EMG, CN69).
Cut out the jumper (JP11).
Type 72 / 96
5
(CR-72MF2U9/A748186)
6
Jumper
JP11
7
EMG, CN69
2P connector,
BRN
OC, CN76
2P connector,
8
BLU
Fuse
FUSE3
9
Loose wiring may cause the terminal to overheat or result in unit malfunction.
A fire hazard may also exist.
Therefore, ensure that all wiring is tightly connected.
JP11
EMG
CN76 CN69
Stranded wire
Special
Screw
washer
Ring pressure
terminal
Terminal board
Wire
Type 120 / 144
(CR-144MF2U9/A748187)
Jumper
JP11
EMG, CN69
2P connector,
BRN
JP11
OC, CN76
CN69
EMG
OC
2P connector,
CN76
BLU
Fuse
FUSE3
32
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Design of 3WAY VRF SYSTEM
Ring
pressure
terminal
Screw and
Special washer
Ring
pressure
terminal
Wire