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SM830044
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 experi-
enced 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 ....................................................................................................... 7
1-1
Unit Specifications .............................................................................................. 8
1-2
Major Component Specifications ...................................................................... 14
(A) Indoor Unit .................................................................................................... 14
(B) Outdoor Unit ................................................................................................ 17
1-3
Other Component Specifications ...................................................................... 20
(A) Indoor Unit ..................................................................................................... 20
(B) Outdoor Unit .................................................................................................. 21
1-4
Dimensional Data ................................................................................................ 22
(A) Indoor Unit ..................................................................................................... 22
(B) Outdoor Unit .................................................................................................. 23
1-5
Refrigerant Flow Diagram ................................................................................... 25
1-6
Operating Range ................................................................................................. 26
2. PROCESSES AND FUNCTIONS ................................................................................27
2-1
Room Temperature Control ................................................................................28
2-2
Freeze Prevention ............................................................................................... 29
2-3
Outdoor Fan Control ........................................................................................... 29
3. ELECTRICAL DATA .................................................................................................. 31
3-1
Indoor Unit .......................................................................................................... 32
3-2
Outdoor Unit ........................................................................................................ 38
Summary of Contents for 854 012 22
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