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Part # 25000102

Installation and Operations Manual

Figure 2. Vibration Pad Locations

System Warranty

This equipment is designed to operate properly and produce 

the rated capacity when installed in accordance with good 

refrigeration practice.
The following conditions should be adhered to when installing 

this unit to maintain the manufacturers warranty:

(a)  System  piping  must  be  in  accordance  with  good 

refrigeration practices

(b)  Inert  gas  must  be  charged  into  the  piping  during 

brazing

(c) The power supply to the unit must meet the following 

conditions:
• All voltages must be +/- 10% of the  n a m e p l a t e 

ratings

• Phase (voltage) imbalance cannot exceed 2%

(d) All control and safety switch circuits must be properly 

connected according to the wiring diagram

(e) The factory installed wiring must not be changed without 

written factory approval

Rigging

Warning:

 Careful considerations for lifting should be made 

before the unit is lifted by any means. The only part of the unit 

designed to carry any of the lifting load is the welded channel 

base. The unit may be lifted at the base with a forklift or by 

means of cables at the four corners of the base. If cables are 

used, the lifting cables should be prevented from contacting 

any of the unit piping or electrical components.

Location Of Equipment - Indoor
Clearances

The parallel systems should be located so they are level and 

easily serviced. The minimum suggested clearance around 

the units should be 24 inches 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 Requirements

 

The total weight of a single unit will vary between 1200 pounds 

and 10,000 pounds. Allowances must be made for the parallel 

rack and all other equipment installed in the same area as the 

parallel units. The location and installation of all equipment 

should  be  in  accordance  with  all  local  and  national  code 

requirements.
While each unit is constructed with a welded steel base frame 

adequately  designed  to  withstand  vibration,  the  natural 

pulsating action of the interconnected motor-compressors 

may cause considerable noise and vibration if the unit is not 

mounted on a firm level surface and isolated from the structure 

of the building.

Vibration Mounts

In ordinary ground level or basement installations, all that is 

necessary to assure a vibration-free installation is to place the 

unit on the concrete floor with the waffle-surfaced resilient pads 

supplied. See Figure 2 for suggested pad locations. Mezzanine 

and other installations require some special considerations. 

The equivalent of 6 inch thick properly reinforced concrete 

floor  must  be  provided  for  mounting  parallel  units  above 

grade.  It  is  recommended  that  the  suggestions  previously 

given for rigid floor construction on above-grade installations 

be closely adhered to. If this is not possible, special vibration

NOTE:

 Turn each leveling nut until the tip casting 

rises  1/4”  to  3/8”  above  the  bottom 

casting. MOUNT ADJUSTMENT SHOULD 

NEVER EXCEED 3/4”.

Figure 1. Vibration Pad and Spring Isolator

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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