Sinclair SDV5 Series User manual

OUTDOOR UNITS SDV5-100-160EAS

COMMERCIAL AIR CONDITIONERS SDV5

Original instructions

IMPORTANT NOTE:

Read this manual carefully before installing or operating

your new air conditioning unit. Make sure to save this

manual for future reference.

CONTENTS

Part 1 General Information............................................................................ 3

Part 2 Component Layout and Refrigerant Circuits ..................................... 7

Part 3 Control ............................................................................................... 18

Part 4 Field Settings..................................................................................... 28

Part 5 Electrical Components and Wiring Diagrams .................................. 33

Part 6 Diagnosis and Troubleshooting......................................................... 43

Part 1

General Information

1 Indoor and Outdoor Unit Capacities........................................................ 3

2 External Appearance............................................................................... 4

3 Combination Ratio .................................................................................. 5

Indoor and Outdoor Unit Capacities

1.1

Indoor Units

1.1.1

VRF indoor units

Table 1-1.1: Standard indoor unit abbreviation codes

Abbreviation

Type

code

C1A One-way Cassette DHA High Static Pressure Duct

Two-way Cassette HA Wall-mounted

CA Compact Four-way Cassette FA Ceiling & Floor

CA Four-way Cassette FCA Floor Standing

DA Medium Static Pressure Duct PA Console

Table 1-1.2: Indoor unit capacity range

Capacity

C1A

DHA

FA FCA

kBtu/h

index

1.8

0.6

18 18

—

2.2

0.8

22 22 22 22

—

22 22

2.8

28 28 28 28 28 28

—

28 28

3.6

1.25

36 36 36 36 36 36

—

36 36 36 36

4.5

1.6

45 45 45 45 45 45

—

45 45 45 45

5.6

56 56 56

—

56 56

—

56 56 56

—

7.1

2.5

71 71 71

—

71 71 71 71 71 71

—

8.0

—

80 80 80 80 80 80

—

9.0

3.2

—

90 90 90 90 90

—

10.0

3.6

100

—

100

—

11.2

112

—

112 112 112

—

112

—

14.0

140

—

140 140 140

—

140

—

16.0

160

—

160 160 160

—

160

—

20.0

200

—

200

—

25.0

250

—

250

—

28.0

280

—

280

—

1.2

Outdoor Units

Table 1-1.5: Outdoor unit

capacity range

Capacity

Model Name

8kW

SDV5-80EAS

10kW

SDV5-100EAS

12kW SDV5-120EAS

14kW

SDV5-140EAS

15.5kW

SDV5-160EAS

Notes:

Individual Series (Small

Series) outdoor units could not be combined.

2External Appearance

2.1 Indoor Units

Table 1-2.1: Indoor unit appearance

One-way Cassette Two-way Cassette

C1A

Compact Four-way Cassette Four-way Cassette

Medium Static Pressure Duct High Static Pressure Duct

DHA

Wall-mounted Ceiling & Floor

Floor concealed Console

2.2 Outdoor Units

Table 1-2.2: Outdoor unit appearance

8KW 10-12KW 14-16KW

FCA

3Combination Ratio

Table 1-4.1: Indoor and outdoor unit combination ratio limitations

Type Minimum combination ratio Maximum combination ratio

Mini C Series outdoor units 50%130%

Table 1-4.2: Combinations of Indoor and outdoor units

Outdoor unit capacity Sum of capacity indexes of

connected indoor units (standard

indoor units only)

Maximum number of

connected indoor units

kW Capacity

index

880 40 to 104 4

10 100 50 to 130 6

12 120 60 to 156 7

14 140 70 to 182 8

15.5 160 77.5to 201.5 9

Combination ratio = Sum of capacity indexes of the indoor units

Capacity index of the outdoor unit

Part 2

Component Layout and

Refrigerant Circuits

1 Piping Diagrams ...................................................................................... 7

2 Refrigerant Flow Diagrams ...................................................................... 9

1Piping Diagrams

Figure 2-1.1: 80 model Piping diagram

Figure 2-1.2: 100/120 model Piping diagram

Figure 2-1.3: 140/160 model Piping diagram

Key components:

1. Oil separator:

Separates oil from gas refrigerant pumped out of the compressor and quickly returns it to the compressor. Separation

efficiency is up to 99%.

2. Gas-liquid separator:

Stores liquid refrigerant and oil to protect compressor from liquid hammering.

3. Electronic expansion valve (EXV):

Controls refrigerant flow and reduces refrigerant pressure.

4. Four-way valve(ST1):

Controls refrigerant flow direction. Closed in cooling mode and open in heating mode. When closed, the heat

exchanger functions as a condenser; when open, the heat exchanger functions as an evaporator.

5. High and low pressure switches:

Regulate system pressure. When system pressure rises above the upper limit or falls below the lower limit, the high or

low pressure switches turn off, stopping the compressor. After 5 minutes, the compressor restarts.

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