KStar KC Series User manual

Preface
Preface-About the product and manual
[To users]
Dear Kstar users! Thank you for purchasing Kstar KC series air-cooled
centralized condenser! To ensure better use, please read this manual carefully before
using it and ensure correct use and operation in order to achieve a lasting and reliable
operation effect.
[Warranty]
This product is covered by our maintenance service with the purchase contract or
relevant approved procedures.
[Exception clauses]
1. Free warranty period expires;
2. Disassembly or modification of the product without authorization;
3. Violation of product operation or use specifications;
4. Man-made failures;
5. Losses caused by force majeure or other external factors at client site.
[Note: Any of the above exemption clauses will not be covered by the warranty.]
[Customer service]
Shenzhen Kstar Science & Technology Co., Ltd. provides customers with a full
range of technical support. You can contact local Kstar office or customer service
center.
[Contact]
Service hotline: [phone]
Company URL: www.kstar.com.cn
[Related description]
1. This manual is provided with the product. Please keep it properly for future
reference. If this manual is lost or damaged, please request it directly from
the manufacturer;
2. This manual is written for the KC series air-cooled centralized condenser
products. The content may not be applicable to other models;
3. The copyright of this manual belongs to Shenzhen Kstar Science &
Technology Co., Ltd.All rights are reserved. The content is subject to change
without notice.

Contents
Chapter 1 Product Overview.........................................................................1
1.1 Introduction............................................................................................................. 1
1.2 Model Description................................................................................................... 1
1.3 Product Composition............................................................................................... 2
1.4 Storage Requirements.............................................................................................. 3
1.5 Operating Environment Requirements.................................................................... 3
1.6 Structural Parameters............................................................................................... 5
1.6.1 Shape................................................................................................................ 5
1.6.2 Mounting Base.................................................................................................. 6
Chapter 2 Installation of Condenser...............................................................7
2.1 Unpacking ............................................................................................................... 7
2.2 Installation Requirements........................................................................................ 7
2.2.1 Environment..................................................................................................... 7
2.2.2 Installation Space.............................................................................................. 8
2.2.3 Fixing.............................................................................................................. 12
2.2.4 Pipeline Connection of Indoor and Outdoor Units......................................... 13
2.2.5 Cable Connection of Indoor and Outdoor Units............................................. 13
2.2.6 Pressure Maintaining, Leak Detection and Vacuuming ................................. 14
Chapter 3 Outdoor Fan Inverter ..................................................................15
3.1 Fan Inverter ........................................................................................................... 15
Chapter 4 Maintenance and Troubleshooting................................................17
4.1 Maintenance .......................................................................................................... 17
4.1.1 Refrigeration System...................................................................................... 17
4.1.2 Heat Exchanger .............................................................................................. 17
4.1.3 Fan.................................................................................................................. 17
4.1.4 Fan Inverter .................................................................................................... 17
4.1.5 Pressure Sensor............................................................................................... 17
4.2 Troubleshooting..................................................................................................... 18

Chapter 1 Product Overview
1
Chapter 1 Product Overview
1.1 Introduction
The KC series air-cooled centralized condenser is a new generation of
high-efficiency energy-saving condenser independently designed and developed by
Kstar and has single-system type and dual-system type. The single-system KC
air-cooled centralized condenser is used to match the single-system indoor unit or
single refrigeration system of the dual-system indoor unit. The dual-system KC
air-cooled centralized condenser is used to match the dual-system indoor unit.
Features:
Modular design, field splicing, easy maintenance.
Small footprint with the same cooling capacity.
Single and double refrigerant circuits, suitable for various systems.
Enhanced heat transfer internal threaded tube, anti-corrosion fin coating
optional.
Marine grade corrosion-resistant aluminum, solid and beautiful.
High-quality low-noise three-phase axial flow fan with built-in thermal
protection.
Integral protective cover prevents damage to the copper tube of the heat
exchanger.
IP55 standard electrical control box available.
Stepless frequency conversion control of the fan.
1.2 Model Description
Taking KCD072HNA model as an example, the naming rules are shown in Fig.
K
Internal code
KSTAR
C
D
K
C
D
*H
*072
*N
*A
Condenser
SS: Single system; D: Dual system

Chapter 1 Product Overview
2
KC air-cooled centralized condenser has 18 models, as shown in Table 1-1
below.
Table 1-1 Model list
Type
No.
Single system
Dual system
1
KCS032
KCD054
2
KCS036
KCD064
3
KCS042
KCD072
4
KCS048
KCD084
5
KCS054
KCD096
6
KCS064
KCD108
7
KCS072
KCD128
8
KCS084
KCD150
9
KCS096
KCD170
10
KCS108
-
1.3 Product Composition
The KC air-cooled centralized condenser consists of finned coils, axial fans, fan
inverters, pressure sensors. The heat exchanger is located inside the condenser, and
the appearance and location of other parts are shown in Fig. 1-2, 1-3.
Fig. 1-2 Schematic diagram of single system of KC air-cooled centralized condenser (single fan)

Chapter 1 Product Overview
3
Fig. 1-3 Schematic diagram of dual system of KC air-cooled centralized condenser (two fans)
Description: 1-External fan; 2-Electric control box; 3-Support feet.
1.4 Storage Requirements
The storage environment of the condenser should meet GB/T19413-2010 and
JB/T7659.5-1995. See Table 1-2 for details.
Table 1-2 Storage requirements
Content
Requirements
Storage
environment
Clean (no dust), well-ventilated, indoor
Ambient
temperature
-40°C~+60°C
Storage time
No more than 6 months; the performance needs to be re-calibrated after 6
months
1.5 Operating Environment Requirements
The condenser operating environment should meet GB/T19413-2010 and
JB/T7659.5-1995. See Table 1-3 for details.

Chapter 1 Product Overview
4
Table 1-3 Operating Environment Requirements
Item
Requirements
Installation
position
The equivalent distance between the indoor unit and standard condenser is 30m;
height difference *ΔH: -5m≤ΔH≤10m;
Ambient
temperature
Normal temperature type: -20℃~+45℃; fluorine pump type: -40℃~+45℃
Operating
power
380V±10％，50/60Hz
Altitude
≤1000m; derated for use above 1000m.
Protection
IP55
Note:
“*”: The condenser has a positive drop above the indoor unit, and a negative drop below it
Note
1. When the equivalent distance between the indoor unit and standard condenser is within
30m, please refer to the specific requirements for the equivalent length of the refrigerant
connecting pipe in the Precision Air Conditioner User Manual.
2. When the equivalent distance between the indoor unit and the standard condenser exceeds
30m, please consult Shenzhen Kstar Science & Technology Co., Ltd. for details.

Chapter 1 Product Overview
5
1.6 Structural Parameters
1.6.1 Shape
The dimensions of the condenser are shown in Fig. 1-4, and the specific
structural parameters are shown in Table 1-4.
Fig. 1-4 Structure of KC air-cooled centralized condenser
Table 1-4 Structural parameters
Model
Number
of fans
Weight
(kg)
Dimensions (mm)
Liquid pipe
interface
Air pipe
interface
(PCS)
L
W
H
（mm）
(PCS)
KCS032
1
124
1125
1100
1960
15.88
19.05
KCS036
1
134
15.88
19.05
KCS042
1
138
1125
1100
1960
15.88
19.05
KCS048
1
138
15.88
19.05
KCS054
1
152
1125
1100
1960
15.88
19.05
KCD054
215
15.88×2
19.05×2
KCS064
1
168
1125
1100
1960
15.88
22
KCD064
226
15.88×2
19.05×2
KCS072
1
172
1125
1100
1960
15.88
22
KCD072
232
15.88×2
19.05×2
KCS084
1
245
1125
1100
1960
15.88
25.4
KCD084
245
15.88×2
19.05×2
KCS096
1
285
1125
1100
1960
15.88
19.05
KCD096
287
15.88×2
19.05×2
KCS108
2
430
2250
1100
1960
19.05
25.4
KCD108
2
430
2250
1100
1960
15.88×2
19.05×2
KCD128
2
452
2250
1100
1960
15.88×2
22×2
KCD150
2
464
2250
1100
1960
15.88×2
22×2
KCD170
2
490
2250
1100
1960
15.88×2
25.4×2
H
L
W

Chapter 1 Product Overview
6
1.6.2 Mounting Base
1.6.2.1 Outdoor unit mounting base
The outdoor unit mounting base is shown in Fig. 1-5. The specific sizes of
bases/mounting holes of each model are shown in Table 1-5.
Fig. 1-5 Dimensions of the centralized machine vertical support foot vacancy
Table 1-5Size of outdoor unit mounting hole base（unit: mm）
Model
Dimensions
L1
L2
D1
KCS032,KCS036,KCS042,KCS048,K
CS054,KCD054,KCS064,KCD064,KC
S072,KCD072,KCS084,KCD084,KCS
096,KCD096,KCS108,KCD108,KCD1
28,KCD150,KCD170
1025
1000
47.5
Note
The mounting holes are long flat holes. It is recommended to use M10×30 bolts to fix the
mounting base.

Chapter 2 Installation of Condenser
7
Chapter 2 Installation of Condenser
2.1 Unpacking
When installing on site, first remove the packaging of the KC air-cooled
centralized condenser, then remove the 4 fixing nuts, and move the condenser to the
installation site.
Check points
1. Check whether the condenser is under pressure.
2. When handling the condenser by hand, do not touch the copper tube in order to avoid
bending and deformation of the copper tube and system leakage.
Inspection
When receiving the KC air-cooled centralized condenser, check the accessories
according to the packing list, and check whether any part has obvious damage. If any
part is missing or damaged, report to the carrier immediately. If you find any
concealed damage, also report it to the carrier and the local office of the supplier.
2.2 Installation Requirements
2.2.1 Environment
1. In order to ensure the heat dissipation performance, please install the
condenser outdoors where the air flow is smooth, avoid places where there
are dust, snow and other conditions that may block the condenser coil, and
also ensure that there is no steam or waste heat, acidic or alkaline gases
around the unit.
2. Try to install the condenser far enough away from the residential area to
avoid noise disturbing the residents. Please refer to the local environmental
protection standards for the specific installation distance.
3. When installing on the roof, pay attention to the load-bearing of the floor,
protect the waterproof layer of the roof, and comply with relevant local laws
and regulations.
4. Make sure that the ground wire of the electric arc welder is not in contact
with the condenser, so as to avoid breakdown of the welding spot in the coil
by the arc.