Installation Instructions For The Control Box Snow Guard Accessories - Mitsubishi Electric PUHY-HP200 Service Handbook

[ IX Troubleshooting ]

[8] Installation Instructions for the Control Box Snow Guard Accessories

CAUTION: Infiltration of snow into the control box may result in the shorted-circuit and equipment damages.
Properly install the field wiring according to the instructions.
1. Parts list
Following the instructions below, protect the wires with the supplied materials to keep snow from entering the unit and damaging the wires.
Before starting work, check that the package includes the following parts
Sealing material A Sealing material B
1 pc.
2. Installation instructions
Refer to the Installation Manual for detailed information about wiring.
<Protecting the power supply wire, transmission lines, and sensor wires>
(1)Attach Sealing material A to Frame MU (control box supporting bracket), using the slit on Part A to properly align it. <Figure 2>
(2) Install Plate A in the way that the sealing material wraps the power supply wires. <Figure 3>
Frame MU Frame MU
Plate A Plate A Power wire Power wire
Align Sealing material Align Sealing material
A with the slit and A with the slit and
attatch it. attatch it.
Sealing Sealing Sealing Sealing Sealing
material A material A material A material A material A
Attachment Attachment
surface surface
<Figure 2> <Figure 2>
*Make a slit on Sealing materials A and C as necessary to accommodate the power wire. <Figure 4>
Note
* Leave no space between the power wire and the sealing materials. <Figure 5>
Note
(3)Close the gap between the power wire/daisy-chained wires with Sealing materials B (2 types, supplied).
Important
Wrap the sealing material around the power wire at below the snow guard to keep it out of contact with
the power supply terminal block. <Figure 5>
Attach Sealing material B (1) to Frame MB.
Attach Sealing material B (2) as shown in Figure 5.
(4) To close the gap between the rubber bush and wires, wrap the section of the unit wire(sensor) and
transmission lines below the rubber bush with pipe covers.
Insert the pipe covers between the snow guard and Frame MB and keep them in place with tie bands. <Figure 1 and Figrue 6>
Attach Sealing Attach Sealing
material B (2) material B (2)
here. here.
Attach Sealing Attach Sealing
material B (1) to material B (1) to
Frame MB. Frame MB.
HWE08110
Plate A
2 pcs. 1 pc.
Part A Part A
INV output wire INV output wire
Top of the plate Top of the plate
Part A Part A
slit slit
Sealing Sealing Sealing Sealing Sealing
material C material C material C material C material C
Plate A Plate A
<Figure 5> <Figure 5>
Pipe cover Tie band
1 pc.
1 pc.
Unit wire: 200V system Unit wire: 200V system
<Figure 1> <Figure 1>
Φ Φ 4 screws
Screw down Screw down
Screw down Screw down
<Figure 3> <Figure 3>
Snow guard Snow guard
Attachment Attachment
Pipe cover Pipe cover
surface surface
Frame MB Frame MB
- 209 -
ScrewM4×12 Instructions
2 pcs. This document
Part B Part B
Transmission lines+Unit wires: sensors Transmission lines+Unit wires: sensors
Cutter knife Cutter knife
4 screws
(2 pcs.) (2 pcs.)
Sealing Sealing
material C material C
Cutter knife Cutter knife
Slits Slits
Tie bands Tie bands
Wire Wire
. Transmission lines . Transmission lines
. Sensors . Sensors
<Figure 6> <Figure 6>
Snow guard Snow guard
Frame MB Frame MB
Wire Wire
Sealing Sealing
material A material A
<Figure 4> <Figure 4>
GB