Sinclair SDV IV Series User manual

FULL DC INVERTER SYSTEMS

SERVICE MANUAL

,1',9,'8$/287'22581,76 SDV4-280-335EAA

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CONTENTS

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

Part 2 Component Layout and Refrigerant Circuits ..................................... 9

Part 3 Control ............................................................................................... 17

Part 4 Field Settings..................................................................................... 29

Part 5 Electrical Components and Wiring Diagrams .................................. 35

Part 6 Diagnosis and Troubleshooting......................................................... 49

Part 1

General Information

1 Indoor and Outdoor Unit Capacities .................................................. 4

2 External Appearance ............................................................................ 6

3 Combination Ratio................................................................................ 8

1Indoor and Outdoor Unit Capacities

1.1 Indoor Units

Table 1-1.1: Indoor unit abbreviation codes

Abbreviation

code

Type

Abbreviation

code

Type

C1A

One-way Cassette

DHA

High Static Pressure Duct

Two-way Cassette

Wall-mounted

Compact Four-way Cassette

Ceiling & Floor

Four-way Cassette

Floor Standing

Medium Static Pressure Duct

Console

Table 1-1.2: Indoor unit capacity range

Capacity

index

C1A

DHA

kBtu/h

1.8

0.6

18 18

—

——

2.2

0.8

22 22

—

22 22

2.8

28 28

—

28 28

3.6

1.25

36 36

—

36 36

4.5

1.6

45 45

—

45 45

5.6

56 56

—

56 —

7.1

2.5

71 71

—

71 —

8.0

80 —

—

80 —

9.0

3.2

90 —

—

——

10.0

3.6

100

—

100

—

11.2

112

—

112

—

112

—

14.0

140

—

140

—

140

—

16.0

160

—

160

—

160

—

20.0

200

—

200

—

25.0

250

—

250

—

28.0

280

—

280

—

40.0

136

400

—

400

—

45.0

154

450

—

450

—

56.0

191

560

—

560

—

1.3 Outdoor Units

Table 1-1.4: Outdoor unit capacity range

Capacity

Model Name

10HP

SDV4-280EAA

12HP

SDV4-335EAA

Notes:

1. SDV4 Series outdoor units could not be combined.

External 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 Standing

Console

2.3 Outdoor Units

Table 1-2.4: Outdoor unit appearance

10/12HP

3Combination Ratio

Table 1-3.1: Indoor and outdoor unit combination ratio limitations

Type

Minimum combination ratio

Maximum combination ratio

SDV4 Series outdoor units

50%

130%

Table 1-3.2: Combinations of Indoor and outdoor units

Outdoor unit capacity

Sum of capacity indexes of

connected indoor units (standard

indoor units only)

Sum of capacity indexes of connected indoor

units (fresh air processing units and standard

indoor units together)

Maximum number of

connected indoor

units

Capacity

index

28.0

280

140 to 364

140 to 280

33.5

335

167.5 to 435.5

167.5 to 335

Combination ratio =

Sum of capacity indexes of the indoor units

Capacity index of the outdoor unit

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