Vol. 2.6 © 2020 Hanbell Precise Machinery Co., Ltd. All rights reserved
Contents
CHAPTER 1. INTRODUCTION ....................................................................................... 1
F
EATURES
..................................................................................................................... 1
A
MBIENCE
...................................................................................................................... 1
CHAPTER 2. BASIC DESIGN ......................................................................................... 2
2.1
C
OMPRESSOR NOMENCLATURE
.................................................................................. 2
2.2
A
PPLICATION LIMITS
.................................................................................................. 2
2.3
C
OMPRESSOR SPECIFICATIONS
.................................................................................. 4
2.4
C
OMPRESSOR OUTLINE
............................................................................................. 8
2.5
C
ONNECTIONS
.........................................................................................................27
2.5.1 Suction/discharge/economizer flange size .................................................27
2.5.2 Size of bushings for motor liquid injection ................................................31
2.6
C
OMPRESSOR STRUCTURE
.......................................................................................32
CHAPTER 3. CAPACITY CONTROL SYSTEM .............................................................33
3.1
I
NLET GUIDE VANES
..................................................................................................33
3.1.1 Control of inlet guide vanes .........................................................................35
3.2
V
ANE
A
CTUATOR CONTROL
......................................................................................36
3.2.1 Actuator data .................................................................................................36
3.2.2 Proportional control board setting ..............................................................36
3.2.3 Digital BCD switch setting ...........................................................................37
3.2.4 Duty cycle ......................................................................................................39
3.2.5 Wiring .............................................................................................................40
3.2.6 LED indicator lights ......................................................................................42
3.2.7 Manual operation ..........................................................................................43
3.2.8 Overload protection ......................................................................................43
3.2.9 Troubleshooting ...........................................................................................43
3.2.10 Actuator capacity control ...........................................................................43
3.3
S
URGE AND
S
TALL PHENOMENON
.............................................................................44
3.3.1 Fixed-frequency capacity control and surge protection strategy ............46
3.3.2 Energy savings with variable frequency compressor ...............................48
3.4
H
OT GAS BYPASS
(HGBP) .......................................................................................53
CHAPTER 4. LUBRICATION SYSTEM .........................................................................56
4.1
O
IL CIRCUIT
.............................................................................................................56
4.2
O
IL PUMP
................................................................................................................57
4.2.1 Specifications of the oil pump .....................................................................57
4.2.2 Features of oil pump.....................................................................................57
4.3
O
IL COOLER
............................................................................................................58
4.4
E
XTERNAL OIL FILTER
...............................................................................................59
4.5
O
IL
&
REFRIGERANT CIRCUITS
..................................................................................60
4.5.1 Oil temperature control in the oil tank ........................................................61
4.6
L
UBRICANTS
............................................................................................................64
4.6.1 Lubricant table ..............................................................................................64
4.6.2 Precautions in changing of oil .....................................................................64
4.6.3 Oil change .....................................................................................................66
CHAPTER 5. MOTOR ....................................................................................................67
5.1
M
OTOR COOLING
.....................................................................................................67
