Space Required For Installation And Servicing For Branch Box; Front View; Top View - Mitsubishi Electric MXZ-8A140VA Technical & Service Manual

3-4-3. Space required for Installation and servicing for Branch box.

(1) Front View (Fig. 3-1)
A Branch box
B On the side of piping
(2)Side View (Fig. 3-2, Fig. 3-3)
C For indoor installations
D Ceiling board
E Maintenance hole
F PCB side
w1:A minimum 350 mm is required for 90° bends in refrigerant piping.
w2:A A is "Min. 200 mm".
(Premise: The slope of drain piping is securable 1/100 or more. Required 200 mm or more, when not securable.)
In the case of less than 200 mm (for example A is 100 mm), the exchange work of Branch box from a maintenance hole
becomes difficult (Only exchange work of a PCB, linear expansion valve coils, sensors and drain pan is possible).
w3:B B is "
600".
In the case of " 450", prepare a maintenance hole at a PCB side as it is shown in Fig. 3-3, and
"Min. 300 mm" is needed as distance A.
In the case of less than 300 mm (for example A is 100 mm), the exchange work of Branch box, linear expansion
valve coils, sensors, and drain pan from a maintenance hole becomes difficult. Only exchange work of a PCB is possible.
(3) Top View (Fig. 3-4)
G Refrigerant piping
H When facing in the opposite direction to the refrigerant piping.
NOTE1: The branch box is only for indoor use.
NOTE2: Please attach the special optional cover (PAC-AK350CVR-E) to install branch box in the outdoors.
(1)
B
450
Min.
50
Fig.3-1
C
(2)
w 1
Min.
250 280
180-200
B
w3
D
Fig.3-2
(3)
H
Min. 250
Fig.3-4
A
Min. 250
Min.
250
A
E
F
A
450
Fig.3-3
12
unit : mm
D
E