3
6
6.1
[Fig. 6.1.1]
ø22.2
(ø28.58) OD
ø22.2
(ø28.58)
ø9.52
(ø15.88)
A
Piping on site
Expand the end of the
pipe and braze it to the
connecting pipe
(non-oxidizing brazing).
B
Piping on site
Expand the end of the pipe
and braze it to the connecting
pipe (non-oxidizing brazing).
A
Pipe cover
B
Pipe
mounting
plate
C
Refrigerant
piping (gas)
D
Refrigerant
piping (liquid)
680 (Cut the liquid pipe here)
710 (Cut the gas pipe here)
When the unit is connected to a 2-refrigerant circuit,
cut off these pipes at the marked points.
<Preparation of the pipes in a 2-refrigerant-circuit>
• Remove the pipe mounting plate.
• Peel off the pipe cover.
• Cut off both pipes at the specified location.
[Fig. 6.1.2]
6
6.2
[Fig. 6.2.1]
7
7.2
[Fig. 7.2.1]
TB5
TB15
S
A1 B1
TB3
M1M2
2
1
A
Terminal block for
indoor transmission
cable
B
Terminal block for
outdoor transmission
cable
C
MA Remote
controller
TB5-1
TB15
S
A1 B1
TB3
M1M2
2
1
TB5-2
S
A2 B2
TB3
M1M2
A
Terminal block for
indoor transmission
cable
B
Terminal block for
outdoor transmission
cable
C
MA Remote
controller
<A> Model 250
<B> Model 500
[Fig. 7.2.2]
DC10~13V
A B
1 2
A2
1
2
A
Non-polarized
D
MA Remote Controller
Upper level
(TB5-1)
C
Lower level
(TB15)
B2 S
S
A1
B1
(TB5-2)
DC10~13V
A B
1 2
A1
1
2
A
Non-polarized
D
MA Remote Controller
Upper level
(TB5)
C
Lower level
(TB15)
B1 S
B
B
<A> Model 250
<B> Model 500
100mm
or more
100mm
or more
A
Drain pan
B
Drain hose
C
As seen from
front of unit
D
Main drain piping
on site
E
Emergency drain piping
on site
G
Drain piping on site
(for humid filter)
F
Trap (on-site
piping work)
