Indoor Service Manual
Table Of Contents
- Cover
- Contents
- 1. SAFETY PRECAUTION
- 2. PART NAMES AND FUNCTIONS
- 3. SPECIFICATION
- 4. FAN PERFORMANCE AND CORRECTED AIR FLOW
- 5. SOUND PRESSURE LEVELS
- 6. OUTLINES & DIMENSIONS
- 7. WIRING DIAGRAM
- 8. REFRIGERANT SYSTEM DIAGRAM
- 9. HEATER CONTROL
- 10. HUMIDIFIER CONTROL
- 11. ERV (ENERGY RECOVERY VENTILATION) CONTROL
- 12. TROUBLESHOOTING
- 12-1. Cautions on troubleshooting
- 12-2. Self-check function
- 12-3. Self-diagnosis action table
- 12-4. Troubleshooting by inferior phenomena
- 12-5. Test point diagram
- 12-6. Trouble criterion of main parts
- 12-7. Thermistor
- 12-8. DC Fan motor (FAN MOTOR/INDOOR CONTROLLER BOARD)
- 12-9. Functions of dip switch and jumper wire
- 13. DISASSEMBLY PROCEDURE
- Back Cover
Specications are subject to change without notice. © 2016 Mitsubishi Electric US, Inc.
3
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name Specifications
1 Gauge manifold · Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3MPa·G or over.
2 Charge hose · Only for R410A
· Use pressure performance of 5.09MPa·G or over.
3 Electronic scale
4 Gas leak detector · Use the detector for R134a, R407C or R410A.
5 Adaptor for reverse flow check · Attach on vacuum pump.
6 Refrigerant charge base
7 Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
8 Refrigerant recovery equipment
PART NAMES AND FUNCTIONS2
•
Indoor Unit
Air
inlet
Air
outlet
(1)Vertical
(2)Horizontal Right