Table of Contents
Page
1.OPERATING RANGE..............................................................................................................................1
2.SPECIFICATIONS
2-1.Unit Specifications..........................................................................................................................2
2-2.Major Component Specifications....................................................................................................3
2-3.Other Component Specifications....................................................................................................5
3.DIMENSIONAL DATA.................................................................................................................................7
4.REFRIGERANT FLOW DIAGRAM ...........................................................................................................9
5.PERFORMANCE DATA
5-1.Performance charts .......................................................................................................................10
5-2.Air Throw Distance Chart ..............................................................................................................11
5-3.Cooling Capacity ...........................................................................................................................12
6.ELECTRICAL DATA
6-1.Electrical Characteristics................................................................................................................13
6-2.Electric Wiring Diagrams................................................................................................................14
7.FUNCTION
7-1.Room Temperature Control ...........................................................................................................16
7-2.Freeze Prevention .........................................................................................................................17
7-3.Outdoor Fan Speed Control ..........................................................................................................18
8.TROUBLESHOOTING
8-1.Check before and after troubleshooting ........................................................................................19
8-2.Air conditioner does not operate ....................................................................................................20
8-3.Some part of air conditioner does not operate ..............................................................................24
8-4.Air conditioner operates, but abnormalities are observed .............................................................26
8-5.If a sensor is defective ...................................................................................................................27
9.REFRIGERANT R407C: SPECIAL PRECAUTIONS WHEN SERVICING THE UNIT
9-1.Characteristics of new refrigerant R407C.......................................................................................28
9-2.Checklist before serving.................................................................................................................28
9-3.Tools specifically for R407C...........................................................................................................29
9-4.For tubing installation procedures..................................................................................................29
9-5.In case of compressor malfunction.................................................................................................30
9-6.In case refrigerant is leaking...........................................................................................................32
9-7.Charging additional refrigerant.......................................................................................................34
9-8.Retro-fitting existing systems..........................................................................................................34
10.CHECKING ELECTRICAL COMPONENTS
10-1.Measurement of Insulation Resistance..........................................................................................35
10-2.Checking Continuity of Fuse on PCB Ass'y....................................................................................36
10-3.Checking Motor Capacitor .............................................................................................................36
ii
To Next Page
