MRV Communications HOUSEHOLD MRV AE182FCAHA - Manual (Page 20)

l The power supply shall be connected from the outdoor side. (For models with electric-aided
heating function, the power supply to the indoor unit shall be connected at the indoor side
The power cord size is 3 x (1.25-1.5)mm
2
, type of YZW).
l A separate power circuit shall be supplied and connected by a qualified electrician according
to the wiring rules specified in the corresponding national standard.
l A current leakage breaker must be installed.
l The connection method of power cord is " Y " type. If the power flexible cord is damaged, it
shall be replaced by the manufacturer or its service department or similar qualified technician
so as to avoid risks.
l Power cord plug: L should be connected to the live wire, N should be connected to the neutral
wire and to the ground wire.
l Connection wire size: 3 x (1.25-1.5) mm
2
, type of YZW.
l Signal transmission wire size: 2 x (0.75-1.25) mm
2
(shielded wire).
l Power cord, connection wire and signal wire shall be provided by the user.
Installation procedure
Electrical requirements
Pipe cutting and expanding
If the pipe is too long or the flare is damaged,
it needs to be cut or expanded.
1. Pipe cutting 2. Removing burrs
3.Insertion nut 4. Pipe expansion
Pipe expander
Slope Damage Bur Partial Overlong
Correct Incorrect
Pipe expansion dimensions as follows:
Specification
Liquid pipe
Liquid pipe
Gas pipe
Gas pipe
6.35 mm (1/4 " ) 0.8 ~ 1.5
9.52 mm (3/8 " ) 1.0 ~ 1.8
12.7 mm (1/2 " ) 1.2 ~ 2.0
15.88 mm (5/8 " ) 1.4 ~2.2
Pipe diameter ÿ Size A (mm)
19
A