Heatcraft Refrigeration Products PARALLEL COMPRESSOR SYSTEMS 25000102 User Manual

Page 2

Part # 25000102

Table of Contents

Introduction .............................................................................................................. 3

Inspection

Unit Designation

Model Definition

System Warranty ....................................................................................................... 4

Rigging

Location of Equipment - INDOOR

Clearances

Floor & Foundation Requirements

Vibration Mounts

Figure 1. Vibration Pad & Spring Isolator

Figure 2. Vibration Pad Locations

Location of Equipment - OUTDOOR ........................................................................ 5

Ground Mounting

Roof Mounting

Unit Vibration Isolation

Compressor Spring Vibration Isolators

Figure 3. Spring Mount

Unit Access ................................................................................................................ 6

Vertical Clearance

Lateral Clearance

Decorative Fences

Units in Pits

Multiple Units

Ventilation Requirements ........................................................................................ 7

Electrical

Refrigerant Piping

Suction P-Traps

Figure 4. P-Trap requirements

Figure 5. P-Trap construction

Figure 6. Double Suction Risers ............................................................................... 8

Figure 7. Inverted Trap

Refrigerant Line Insulation

Refrigerant Line Support

Figure 8. Pipe Support

Expansion Loops ....................................................................................................... 9

Figure 9. Offsets

Table 1. Expansion Chart

Table 2. Pressure Loss of Liquid Refrigerants ....................................................... 10

Table 3. Equivalent Feet of Pipe

Table 4. Weight of Refrigerants in Copper Lines During Operation ................... 11

Table 5A. Recommended Line Sizes for R-404A and R-507 ................................ 12

Table 5B. Recommended Line Sizes for

R-404A and R-507 (continued) .............................................................. 13

Table 6A. Recommended Line Sizes for R-22 ........................................................ 14

Table 6B. Recommended Line Sizes for R-22 (continued) ................................... 15

Table 7. Recommended Remote Condenser Line Sizes ....................................... 16

Leak Checking, Evacuation, and Start-up ............................................................. 17

Refrigerant Distribution ........................................................................................ 18

Off-Cycle

Electric Defrost

Priority I Hot Gas Defrost

Head Pressure Control System

Electronic Control System ...................................................................................... 19

System Balancing

System Superheat (NOTE: Superheat is not preset at factory)

Evaporator Superheat

Alternative Superheat Method

Compressors ........................................................................................................... 20

Copeland Compressors

Table 8. 3D/4D/6D Solid State Modules

Table 9. Typical Voltage Ranges

Table 10. Unloader Factors

Table 11. Oil Safety Switch ..................................................................................... 21

Table 12. Oil Charges

Approved Copeland Lubricants

Carlyle Compressors

Approved Carlyle Lubricants

Oil Pressure

Table 13. O6D/E Oil Pressure History

Table 14. Oil Safety Switch ..................................................................................... 22

Table 15. Part Load Performance Multipliers

Table 16. Required Differential Pressure

Three-Phase Voltage Monitor

Sight Glass & Moisture Indicator ........................................................................... 23

Figure 10. Sight Glass

Safety Relief Devices

Figure 11. Direct Type Relief Valves

Figure 12. 3-Way Relief Valve

Table 17. Henry Relief Valve Capacity Ratings ..................................................... 24

Table 18. Discharge Piping Table

Series P100 Pressure Control ................................................................................. 25

Figure 13. P100 Pressure Controls

Auto Reset Models

Manual Reset Models

Liquid Level Switch

S-9400 Level Switch Series

Table 19. Level Switch Table

Figure 14. S-9400

S-9400 Operation

Module Replacement ............................................................................................. 26

Figure 15. Module Replacement

Oil Control

Low Pressure Oil System

Figure 16. Low Pressure Oil System

Oil Separators

Table 20. AC&R Models........................................................................................... 27

Temprite Models

Temprite Valve Adjustment

Table 21. Temprite Models

Figure 17. Temprite Oil System

Oil Level Regulators

Table 22. AC&R Model Regulators ......................................................................... 28

Troubleshooting Oil System

Liquid Filter-Driers & Suction Filters

Table 23. Sporlan Valve Company

Table 24. Alco Controls

Suction Filter ........................................................................................................... 29

Compressor Motor Burnout Clean-up Procedure

Sporlan Valve Company

Superior Valve Company ........................................................................................ 30

Table 25. Type F Filter

Table 26. Type DF (for clean-up)

Alco Controls

Table 27. Type AF Filter

Table 28. Type AFD (for clean-up)

Head Pressure Control

Valve Functions

Liquid Drain Control Method ................................................................................. 31

Recommended Valve Settings

Table 29. Pressure Range, Set Point & Change per Turn

Field Adjustment

Hot Gas Bypass Regulator Adjustment

Sporlan Valve Company

Valve Setting and Adjustment

Alco Controls ........................................................................................................... 32

Valve Setting and Adjustment

Control Settings

Table 30. Control settings for R-404A/R-507

Table 31. Control settings for R-22

Low Pressure Switch Setting for RMCC

General Maintenance Schedule............................................................................. 33

SERVICE DIAGNOSIS CHART .............................................................................34-35

Service Record ........................................................................................................ 36

System Reference Data

Installation and Operations Manual