Troubleshooting Guide
Note:
Use an appropriate measuring instrument for readjustment.
*1: High-pressure switch moves.
2. The Units discontinue after the operation started
WHAT TROUBLED
COMPLAINTS
HOW TO CHECK
REMEDY
Outdoor coil
In-condensable gas
blended.
High pressure switch
(Option part)
Refrigerant
Outdoor Fan
Coil is dirty *1
Air intruded into the
refrigerant pipe line *1
Improper adjustment
A shortage of refrigerant
amount.
Check pressure
Reverse rotation of fan
Obstacle
Air short circuit *1
Checking
In the event that
difference between the
saturating temperature
corresponding to high
pressure and the
temperature of air
discharged from the
outdoor coil is more than
15 C, incondensable gas
may be blended.
Check it with a pressure
gauge.
Confirm the wind blowing
out upward.
Check it with eyes.
Wash it by means of
something like chemical
washing.
Extract air by vacuum
pump, then replenish
(charge) the refrigerant.
Read just it to normal
operating pressure.
(Note)
Don't alternate the
specified adjusting
pressure. If the adjusted
pressure exceed the
specified range, it will
cause a great accident.
Replenish the
refrigerant. Repair the
spot where it is leaked.
If reversed, connect
interchanged wires to
each terminal.
Power wirings.
17
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Summary of Contents for TN-C090BT00
Page 11: ...Model No TN C180BT00 11 Wiring Diagrams ...
Page 12: ...Model No TN C240 T00 B MEZ62337701 12 Wiring Diagrams ...
Page 24: ...Features of Controller 1 Main Controller Circuit Diagram 24 ...
Page 25: ...2 Feature of Main Controller 25 Model No TN C0 0BT00 9 TN C120BT00 ...
Page 26: ...Model No TN C 0BT00 TN C 0BT00 18 4 2 26 ...
Page 27: ...3 Feature of Remote Controller PCB ASS Y 4 Feature of Remote Controller LCD 27 ...
Page 33: ...Exploded View and Replacement Parts List 559010 346811 566001 554030B 554160A 554030A 268711 ...
Page 34: ...Exploded View and Replacement Parts List 346811 566001 554160A 559010 554030B 554030A 268711 ...
Page 35: ...Memo 26 ...
Page 36: ...Memo 27 ...