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WHO SHOULD USE THIS MANUAL
This service manual is made to assist the service technician apply his knowledge and training
to this model air conditioner. This manual is written both for experienced service persons
and those who are new to air conditioning service. To help those with less experience or
who are new to this kind of unit we have included more explanations of basic procedures in
simple language than is usual in some service manuals. The experienced technician will of
course find he knows many of these things already and can go directly to the procedures and
information he needs; the less experienced technician will better understand what to do even
before he arrives on the job, and therefore be better able to work by himself as well as assist
the more experienced technician.
TABLE OF CONTENTS
1. SPECIFICATIONS............................................................................................ I - 1
1-1 Unit Specifications .....................................................................................I - 2
1-2 Major Component Specifications ...............................................................I - 12
(A) Indoor Units ..................................................................................................I - 12
(B) Outdoor Units ...............................................................................................I - 22
1-3 Other Component Specifications ...............................................................I - 25
1-4 Dimensional Data ......................................................................................I - 38
(A) Indoor Units ..................................................................................................I - 38
(B) Outdoor Units ...............................................................................................I - 47
1-5 Refrigerant Flow Diagram ..........................................................................I - 49
1-6 Operating Range .......................................................................................I - 50
1-7 Cooling Capacity........................................................................................I - 51
1-8 Heating Capacity .......................................................................................I - 71
1-9 Performance Charts...................................................................................I - 72
1-10 Noise Criterion Curves...............................................................................I - 90
1-11 Increasing the Fan Speed..........................................................................I - 95
1-12 Air throw Distance Chart ............................................................................I - 96
1-13 Installation Instructions ..............................................................................I - 99
2. PROCESSES AND FUNCTIONS ......................................................................II - 1
2-1 Room Temperature Control ......................................................................II - 2
2-2 Cold Draft Prevention (Heating Cycle)......................................................II - 4
2-3 Automatic Fan Speed (Indoor Unit) ..........................................................II - 5
2-4 Outdoor Fan Speed Control......................................................................II - 6
2-5 Freeze Prevention (Cooling) .....................................................................II - 7
2-6 Condensing Temperature Control (Cooling) .............................................II - 8
SM830082
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