Electra OU7-24 RC Manual de servicio Pagina 92
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12-1
TROUBLESHOOTING
Revision Y06-02Service Manual - KN Series
12. TROUBLESHOOTING
ELECTRICAL & CONTROL TROUBLESHOOTING
ATTENTION : check for broken or loose cable lugs first.
NO SYMPTON PROBABLE CAUSE CORRECTIVE ACTION
1. The power supply
indicator (red led)
doesn’t light up.
There is no correct voltage
between the line and
neutral terminals on main
P.C.B.
-If the voltage is low repair power supply.
-If there is no voltage repair general wiring.
-If there is correct voltage replace main or
display P.C.B’S
2. The operating
indicator (green led)
does not light up.
The remote control
batteries are discharged
-Replace batteries of the remote control
3. The operating
indicator (green led)
does not light up when
starting from unit..
Check main P.C.B and
display P.C.B.
-Replace P.C.B if necessary.
4. The indoor fan does
not function correctly.
Check the voltage between
indoor fan terminals on the
main P.C.B
- If there is voltage replace capacitor or
motor.
5. The outdoor fan does
not function correctly.
Check the voltage between
indoor fan terminals on the
main P.C.B.
There is voltage between
outdoor fan terminals on
the outdoor unit.
There is no voltage
between outdoor fan
terminals on the outdoor
unit.
- If there is no voltage replace main P.C.B
- Replace capacitor or motor.
- Check and repair electrical wiring between
indoor and outdoor units.
6. The compressor does
not start up.
Check voltage on
compressor terminals on
the outdoor unit. (with
ampmeter)
Check if there is correct
voltage between
compressor terminals on
the outdoor unit.
-If no voltage replace main P.C.B.
- If low voltage repair power supply.
-If the voltage corrrect replace capacitor or
compressor.
-If there is no voltage repair electrical wiring
between indoor and outdoor units.
7. The ref
rigeration
system does not
function correctly.
Check for leaks or
restrictions, with
ampmeter, pressure guage
or surface thermometer.
- Repair refrigeration system and charge
refrigerant if necessary.
8. No cooling or heating
only indoor fan works.
Outdoor fan motor faulty or
other fault caused,
compresssor overload
protection cut out.
-Replace P.C.B.
- Outdoor fan blocked remove obstructions.
CONTENT
- KN Cassette R410A Series 1
- LIST OF EFFECTIVE PAGES 2
- Table of Contents 3
- 1. INTRODUCTION 4
- 1.6 Outdoor Unit 5
- 1.7 Tubing Connections 5
- 1.8 Accessories 5
- 1.9 Inbox Documentation 5
- 1.10 Matching Table 6
- 2. PRODUCT DATA SHEET 7
- 2.2 KN 24 / OU7-24T R410A 8
- 2.3 KN 30 / OU8-30 R410A 9
- 2.4 KN 30 / OU8-30T R410A 10
- 2.5 KN 36 / OU10-36 R410A 11
- OUTDOOR 11
- PRODUCT DATA SHEET 12
- 3. RATING CONDITIONS 14
- 4. OUTLINE DIMENSIONS 15
- 4.2 Outdoor Unit: OU7-24 16
- 4.3 Outdoor Unit: OU8-30 16
- OUTLINE DIMENSIONS 17
- 5. PERFORMANCE DATA 18
- 5.2.1 Heating 19
- 5.3.1 Cooling 20
- 5.3.2 Heating 21
- 5.4 KN30 / OU8-30 R410A 22
- 5.5.1 Heating 23
- 5.6 KN30 / OU8-30T R410A 24
- 5.7.1 Heating 25
- 5.8 Pressure Curves 26
- 5.8.2 Heating 27
- 5.9 Pressure Curves 28
- -10 -5 0 5 10 15 20 29
- 5.9 KN36 / OU10-36 R410A 30
- 5.10.1 Heating 31
- 5.11 Pressure Curves 32
- 5.12 KN36 / OU10-36T R410A 34
- 5.13.1 Heating 35
- 5.14 Pressure Curves 36
- 5.14.2 Heating: 37
- 5.15 KN45 / OU10-47T R410A 38
- 5.16.1 Heating 39
- 5.17 Pressure Curves 40
- 5.17.2 Heating 41
- 6. ELECTRICAL DATA 42
- ELECTRICAL DATA 43
- 7. WIRING DIAGRAMS 44
- WIRING DIAGRAMS 45
- 7.6 Outdoor Unit: OU10-36 46
- 7.7 Outdoor Unit: OU10-36T 47
- 7.8 Outdoor Unit: OU10-47T 47
- 8. ELECTRICAL CONNECTIONS 48
- 9. REFRIGERATION DIAGRAMS 49
- 9.1.2 KN 30 R410A 50
- REFRIGERATION DIAGRAMS 51
- 9.1.3 KN 36 R410A 51
- 9.1.4 KN 36T R410A 52
- 9.1.5 KN 45T R410A 53
- 9.2 Cooling Only Models 54
- 10. TUBING CONNECTIONS 55
- ¼” ⅜” ½” ⅝” ¾” 55
- 11. CONTROL SYSTEM 56
- CONTROL SYSTEM 57
- 11.2 Control Function 59
- 11.3 General Functions 60
- 11.3.5 Protections 61
- 11.3.6 Thermistors Operation 61
- 11.3.7 RV Fault 62
- 11.3.8 General Features 62
- 11.4 Cooling Mode 63
- 11.4.3 Sequence Diagrams 64
- (RT - SPT) [ 65
- 11.5 Heating Mode 66
- 50)2( tt ICTandSPTRT 68
- 11.6 Heating, RC or SH Group 69
- 11.7.1 Sequence Diagram 70
- 11.8 Heating, RH Group 71
- 11.10.2 Sequence Diagrams 74
- 11.11 Dry Mode 75
- 11.11.2 DRY, SH or RH group 77
- 11.12 Protection 78
- Time [Hr] 85
- 11.16 System Diagnostics 91
- 12. TROUBLESHOOTING 92
- TROUBLESHOOTING 93
- 13.5 Indoor Unit: KN 36 98
- 13.6 Indoor Unit: KN 45 99
- *Optional 102
- 14. OPTIONAL ACCESSORIES 130
- Service Manual - KN Series 132
- OPTIONAL ACCESSORIES 132
- Revision Y06-02 132
- APPENDIX A 136
- CONTENTS 137
- INSTALLATION 138
- NAMES AND FUNCTIONS 140
- OPERATION ATTENTION 141
- TEMPORARY OPERATIONS 142
- ADJUSTING AIR FLOW DIRECTION 142
- MAINTENANCE 143
- RESTART AFTER A LONG TIME 145
- TROUBLES AND CAUSES 146
- REPARATION 147
- PRECAUTION 149
- INSTALLATION INFORMATION 150
- ATTACHED FITTINGS 151
- INSTALLATION PLACE 152
- INDOOR UNIT INSTALLATION 153
- CAUTIONS 154
- OUTDOOR UNIT INSTALLATION 156
- INSTALL THE CONNECTING PIPE 157
- Flaring the nuts 158
- Use the market brass pipe 158
- Operate the stop valves 160
- CHECK THE LEAKAGE 160
- CONNECT THE DRAIN PIPE 161
- WIRING 163
- 3. ELECTRICAL CONNECTIONS 164
- Figure 36: Three Phase Units 165
- 3.2 Interconnecting cable 165
- Chart 38 167
- TEST OPERATION 168
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