MEES20K028
PWFY-P-
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MU-
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NMU-E2-
A
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44
12. ELECTRICAL WORK
AIR TO WATER
12-5. Connecting electrical connections
Verify that the model name on the operating instructions on the cover of the control box is the same as the model name
on the nameplate.
Remove the screws holding the terminal box cover in place.
Ensure that the wiring is not pinched when fitting the terminal box cover. Pinching the wiring may cut it.
Install wiring so that it is not tight and under tension. Wiring under tension may break, or overheat and burn.
Fix power source external input/output line wiring to control box by using buffer bushing for tensile force to prevent electric
shock. (PG connection or the like.) Connect transmission wiring to transmission terminal block through the knockout hole
of control box using ordinary bushing.
After wiring is complete, make sure again that there is no slack on the connections, and attach the cover onto the control
box in the reverse order removal.
Wire the power supply so that no tension is imparted. Otherwise disconnection, heating or fire result.
(A) Screws
(B) Front panel
(C) Control box
▪PWFY unit
(A)
(C)
(B)
(A) To prevent external tensile force from applying to the wiring
connection section of power source terminal block use buffer
bushing like PG connection or the like.
(B) External signal input cable (C) External signal output cable
(D) Power source wiring (E) Tensile force
(F) Use ordinary bushing
(G) Transmission cable and MA remote controller cable
(H) Conduit ( I ) Side frame
(J) Knockout hole (for power source wiring)
(K) Washer (accessory)
▪PWFY unit
(C)
(A)
(A)
(A)
(B)
(D)
(E)
(G)
(F)
(J)
(K)
(I)
(H)
0000005923.BOOK 44 ページ 2020年8月6日 木曜日 午後12時38分