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Mitsubishi Electric PAC-645BH-E Quick Start Manual page 2

Base heater

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5 Mounting the heater guard
(Continued from previous page)
When the holes A are covered as in the right photo, do not install
the heater guard 2.
6 Mounting the motor support
Mount the motor support.
• Make sure that the lead wire is not caught between the bottom of the motor support and the base.
7 Securing the lead wires
Wiring diagram
Connect the lead wires according to the wiring diagram on the right.
< In case of UNIT size H796 o W950 o D330 > ∙∙∙ A
❶ Bundle the lead wires of the base heater and the fan motor together with clamps.
• Secure the lead wires so they will not interfere with the propeller fan.
❷ Pass the lead wires through the rubber parts hole on the metal parts of the electrical box toward the electrical box.
W Fix the lead wires between the motor support and the rubber parts hole with the cable ties4.
❸ After connecting the lead wires, bundle the extra lead wires together and secure them with the fastener 5.
W Arrange the lead wires so that they do not touch the service panel.
cable tie 4
A
1
cable tie 4
1
1
A
A
1
[ Control board ]
BLK
CN714
2
(BLU)
1
RED
2
connector of the base heater [CN714(BLU)]
3
Bundle the lead
Bundle the lead
wires together
wires together
using the fastener 5.
using the fastener 5.
2
7 Securing the lead wires
< In case of UNIT size H1048 o W950 o D330 > ∙∙∙ B
❶ Fix the clamp 9 on the right side of the motor support with screw 5o123.
❷ Bundle the lead wires of the base heater and the fan motor together with clamps.
  • Secure the lead wires so they will not interfere with the propeller fan.
❸ Pass the lead wires through the rubber parts hole on the metal parts of the electrical box toward the electrical box.
W Arrange the lead wires so that they do not touch the service panel.
B
2
2
1
BLK
BLK
2
BASE HEATER
1
BLK BLK
BLK BLK
2
8 Attaching the spec label
THERMAL
PROTECTOR
Attach the spec label 6 by the spec name plate on the service panel.
W This is an example picture.
spec label 6
9 Reinstallation
Make sure that the installation of the base heater and connections of the lead wires have been completed according to this installation sheet.
Install the removed parts in the reverse order of removal.
• Tighten the propeller fan with a torque of 5.7±0.3N•m[4.2±0.2ft-lbs](57±3kgf•cm).
• Rotate the propeller fan and make sure that the base heater and the lead wires do not interfere with the movement of propeller fan.
WARNING
Mount the outer panels securely. Incomplete installation may result in electric shock and fire caused by dust, water, etc.
(Continued from left page)
2
3
2
connector of the base heater [CN714(BLU)]
2
1
spec name plate
BT79C423H01

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