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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

© 2007 Heatcraft Refrigeration Products LLC

Installation and Operations Manual

Summary of Contents for H-IM-PCS

Page 1: ...Parallel Compressor Systems Bulletin No H IM PCS October 2004 Part Number 25000102 Replaces H IM 72B October 2004 Installation and Operation Manual...

Page 2: ...peland 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 Req...

Page 3: ...tive and the carrier of the damage immediately Request an immediate joint inspection with the carrier Do not repair the unit until inspected by carrier s representative Care should be exercised when u...

Page 4: ...es at the rear and 42 inches in the front of panel or as required by National or Local Codes For parallel system units placed end to end 24 inches between units is suggested Floor Foundation Requireme...

Page 5: ...e ground level provides some protection from ground water and wind blown matter The concrete slab should be isolated from the building structure Finally before tightening mounting bolts recheck the le...

Page 6: ...whenever possible Care should be taken to see that ample room is left for maintenance work through access doors and panels When the unit is in an area where it is enclosed by three walls the unit mus...

Page 7: ...ment Before starting up a parallel unit insure that all fuses and motor protective devices are in place and that all wiring is secure A complete wiring diagram for troubleshooting the unit will be fou...

Page 8: ...ed a maximum of 2 feet in each direction Pipingattachedtoavibratingobject suchasacompressor or compressor base must be supported in such a manner that will not restrict the movement of the vibrating o...

Page 9: ...ially on hot gas lines to prevent line breakage This is critical on long straight runs of generally 70 or more where expansion loops must be provided and hangers should allow for longitudinal movement...

Page 10: ...04A R 507 4 1 1 1 6 1 1 6 8 2 2 1 10 2 2 7 12 2 3 3 16 3 4 1 20 4 5 6 30 6 8 3 40 8 11 8 Table 2 Pressure Loss of Liquid Refrigerants In Liquid Line Risers Expressed in Pressure Drop PSIG and Subcooli...

Page 11: ...2 57 3 50 4 98 14 27 40 26 42 58 40 64 95 61 93 1 32 1 91 1 33 1 87 1 5 8 12 134A 22 R 507 502 404A 90 9 90 0 78 0 3 65 4 96 7 07 20 37 56 37 59 82 57 90 1 35 87 1 33 1 86 1 30 1 88 2 64 2 1 8 12 134...

Page 12: ...8 2 1 8 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 2 1 8 1 3 8 1 5 8 1 5 8 1 5 8 1 5 8 2 1 8 1 5 8 1 5 8 1 5 8 84 000 1 1 8 1 3 8 1 5 8 1 5 8 1 5 8 2 1 8 1 3 8 1 3 8 1 5 8 1 5 8 2 1 8 2 1 8 1 3 8 1 5 8 1 5 8 1 5 8...

Page 13: ...8 5 8 5 8 72 000 1 5 8 2 1 8 2 1 8 1 5 8 1 5 8 1 5 8 1 5 8 2 1 8 2 1 8 1 5 8 1 5 8 1 5 8 1 5 8 2 1 8 2 1 8 5 8 5 8 5 8 5 8 5 8 7 8 78 000 2 1 8 2 1 8 2 1 8 1 5 8 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 1 5 8 1...

Page 14: ...1 5 8 1 5 8 1 1 8 1 3 8 1 5 8 1 5 8 1 5 8 2 1 8 1 3 8 1 3 8 1 5 8 84 000 1 1 8 1 1 8 1 3 8 1 3 8 1 3 8 1 5 8 1 1 8 1 3 8 1 3 8 1 3 8 1 5 8 1 5 8 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 2 1 8 1 3 8 1 5 8 1 5 8...

Page 15: ...5 8 5 8 72 000 1 5 8 2 1 8 2 1 8 1 3 8 1 5 8 1 5 8 1 5 8 2 1 8 2 1 8 1 3 8 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 1 2 1 2 5 8 5 8 5 8 7 8 78 000 1 5 8 2 1 8 2 1 8 1 3 8 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 1 3 8 1 5...

Page 16: ...1 8 1 3 8 1 1 8 1 1 8 180 000 50 100 1 5 8 2 1 8 1 3 8 1 3 8 1 3 8 1 3 8 1 3 8 1 3 8 1 3 8 1 5 8 1 3 8 1 3 8 1 3 8 1 5 8 1 3 8 1 3 8 240 000 50 100 1 5 8 2 1 8 1 5 8 1 5 8 1 5 8 1 5 8 1 3 8 1 3 8 1 5...

Page 17: ...e pull down The wiring diagramfortheunitwillhavetobeconsultedtodetermine how to best force the fans to operate for this step 4 With all compressor and control breakers and toggle switches turned off a...

Page 18: ...eturned into the liquid manifold the Priority I design returns the liquid to the condenser through a liquid drain manifold Hot discharge gas is injected into the suction line at the parallel rack and...

Page 19: ...igerant being returned to the compressor This will cause dilution of the oil and eventual failure of the bearings and piston rings In extreme cases the compressor will fail as a result of the diluted...

Page 20: ...est The compressors are solid mounted to a base frame or mounted on the refrigerant receiver All reciprocating compressors incorporate oil floats Crankcase heaters will be installed and wired Cylinder...

Page 21: ...1 24 to 1 8 18 to 34 1 24 to 2 3 Carlyle Compressors Approved Carlyle Lubricants For CFC and HCFC Refrigerants Use Totaline 150 Suniso 3GS Shrieve Zerol 150 Texaco WFI 32 150 IGI Petroleum Cryol 150...

Page 22: ...eactivated after a specified trip delay The output relay reactivates after power line conditions return to an acceptable level for a specified amount of time Restart Delay The trip delay prevents nuis...

Page 23: ...Vessel is exposed to excessive heat When a Vessel containing liquid refrigerant is shut off from otherpartsofthesystemariseintemperaturewillcausearisein pressure If theVessel is completely filled wit...

Page 24: ...let 350 400 425 450 Angle 526E 3 8 MPT 3 8 FLARE 10 2 11 6 12 3 13 0 527E 1 2 MPT 5 8 FLARE 28 5 32 4 34 4 36 3 Straight Through 5231 3 8 MPT 3 8 FLARE 11 2 12 7 13 5 14 3 5231 A 3 8 MPT 1 2 FLARE 18...

Page 25: ...cannot be reset until the pressure drops to a predetermined level The latching mechanism inside the manual reset model is trip free The electrical contacts will cutout even if the reset button is hel...

Page 26: ...d to insure the system will work properly Low Pressure Oil System This type system is normally used for parallel compressors and uses three basic components Oil Separator Oil Reservoir and Oil Level R...

Page 27: ...pressure expansion valve with a range of 0 to 90 psig Temprite Part No is 67070000 An alternative valve manufactured by Sporlan is Model ADRI 11 4 0 90 Oil Level Regulators The AC R adjustable oil re...

Page 28: ...n the motor cavity on semi hermetic models the compressor will overfill The oil line sight glass is a good way to see how the separator is working Look for movement in the glass If the separator is no...

Page 29: ...strainers and filter driers 3 Install a replacement compressor and make a complete electrical check 4 Make sure the suction line adjacent to the compressor is clean Install a liquid line filter drier...

Page 30: ...r pressure The regulator closes as the condenser pressure drops below the set point thus back flooding the condenser and reducing the inside surface area available for condensing Valve B is and Outlet...

Page 31: ...utdoor temperature to allow the system pressures to drop below the regulator pressure settings Before adjusting make sure that all manual opening stems on the regulators are set for automatic operatio...

Page 32: ...0psig withonecompleteturnequal toapproximately4psichange Adjustmentsshouldbemade insmallincrements allowingforthesystemtostabilizeafter each turn 6 Vary the evaporator load to test at various conditio...

Page 33: ...connections Checkoperationandconditionofcontactsoncompressor fan motor contactors Check appearance of control panel interior Check appearance of exterior conduit junction boxes Check appearance of ins...

Page 34: ...tor Check stator If leads are all right replace stator Eliminate cause of excessive pressure Check oil level Correct binding Unit Operates Long Or Continuously 1 2 3 4 5 6 Control contacts sticking in...

Page 35: ...ters Check and reset for proper superheat Check means for regulating condensing temperature Check for proper sizing Little or No Oil Pressure 1 2 3 4 5 6 7 8 9 Clogged suction oil strainer Excessive l...

Page 36: ..._ Group __________________ Group _________________ Compressor Model Serial No __________________ __________________ Group __________________ Compressor Model Serial No __________________ _____________...

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