Table 13 — Minimum Gpm Required for Water-Cooled Heads and/or Oil Cooler (Based on 30° F Rise)

COMPRESSOR

GPM

5F

2-3

5H (4, 6 and 8 Cylinders)

6

5H (12 Cylinders)

8

SAFETY RELIEF VALVES — All 5H compressors are equipped with built-in safety relief valves that are factory set to relieve from discharge to suction side of the compressor at a pressure differential of 350 psi.

Safety relief valves that relieve at a 400 psi pressure differ- ential are factory installed on the 5F60 compressor but are not available with smaller 5F compressors.

SUCTION STRAINERS — Each 5F,H compressor is equipped with one or 2 suction strainers located in the suction manifold. On new installations, felt filters should be used in suction strainers to trap foreign material left after installation. After 50 hours of use, these felt filters must be removed. See 5F,H Installation Instructions for further details.

OIL SAFETY SWITCH — An oil safety switch is provided as standard with all compressors except 5F20 and 5F30. This switch is optional equipment on 5F20 and 5F30 compressors. This switch will shut off the compressor before high oil temperatures or lack of oil causes loss of oil pressure which can result in compressor failure. As a safety feature, this switch must be reset manually after cutout.

OIL SEPARATORS — Oil separators in the hot gas discharge line are not recommended for general use. However, there are systems where protection afforded by a separator is desirable, notably systems employing flooded evaporators or refrigera- tion systems with long system piping. For a more complete discussion see Carrier’s System Design Manual.

CRANKCASE OIL HEATERS — Crankcase oil heaters are available for all 5F,H compressors. Heaters keep the crankcase warm during off cycles and thus minimize refrigerant absorp- tion in the oil. Crankcase heaters are recommended for CFC or HCFC refrigerant applications and are required for HFC refrig- erant applications with POE lubricants. Refer to the 5F,H Installation Instructions for installation and wiring.

INTERCONNECTION OF COMPRESSORS — All 5F,H compressors are furnished with removable handhole cover plates on each crankcase. When field interconnection is desired on 5F40 through 5H86 compressors, cover plates can be removed and replaced by special cover plates with tapped open- ings. These tapped cover plates have connections for both oil and gas equalizing lines. For interconnection of 5F20 and 5F30 compressors, use the opening for the oil sight glass (see 5F,H Installation Instructions). Cover plates for interconnection are standard equipment on 5F120 and 126 compressors.

Many refrigeration systems utilize oil management compo- nents such as an oil separator, oil reservoir and floats. The oil level control float an be installed in the sight glass connection in the 5F,H handhole cover plate.

VIBRATION ISOLATORS — A standard vibration isolation package is available for each 5F,H compressor. This consists of a standard rubber-in-shear and compression type mounting that gives an average static deflection of approximately 1/8 in. and provides reasonably good vibration isolation at 1750 rpm.

The use of vibration isolators is recommended for all com- pressor and condensing units because:

1.Transfer of vibration to structure is reduced when the units are installed on upper floors.

2.They limit drive shaft misalignment on installations where units are bolted to an uneven concrete floor.

Vibration isolators giving approximately 3/8-in. deflection are available for superior isolation or if the compressor is run at slower speeds. Tables 14 and 15 provide an estimated weight distribution on legs of a compressor or condensing unit when used with a normal horsepower motor.

MUFFLERS — Four standard mufflers cover the entire model range of 5F,H compressors. It is recommended that these mufflers be installed when compressors are used with remotely located water-cooled or evaporative condensers.

Mufflers are not usually necessary with smaller 5F compressors and their use is recommended only when quiet operation is required.

Each piping package to convert 5H compressor units to condensing units includes a standard muffler of appropriate size.

Pressure drop through mufflers is about 1/2 psi at 40 F suction and 105 F discharge with following loadings: 5 tons with 5F20 muffler, 15 tons with 5F40 muffler, 35 tons with 5H40 muffler and 100 tons with 5H120 muffler.

Table 14 — Weight Distribution, Condensing Units

D

C

COMPR

MOTOR

A

B

 

COND

WEIGHT DISTRIBUTION (lb)

COMPR

Belt Drive

Direct Drive

SIZE

 

 

A or D

B or C

A or D

B or C

5F20

20

138

115

30

148

125

 

5F30

20

163

135

30

170

148

 

5F40

30

280

220

40

325

263

305

240

 

60

345

285

325

265

5F60

40

365

305

60

406

345

360

305

 

027

470

430

5H40

60

525

423

027

585

478

555

450

 

043

665

603

580

505

5H46

043

580

505

054

610

535

 

070

625

550

 

027

693

570

 

043

745

625

710

590

5H60

054

825

818

755

635

054*

915

823

 

 

070

930

833

765

645

 

084

960

865

 

054

755

635

5H66

070

765

645

084

690

865

 

 

097

1030

935

 

043

1023

803

5H80

054

1065

848

985

900

070

1075

858

995

910

 

084

1163

943

1080

995

 

097

1185

1018

1150

1065

 

070

995

910

5H86

084

1030

995

097

1150

1065

 

 

127

1300

1215

 

054

1335

1008

5H120

070

1350

1023

1280

1080

084

1425

1098

1340

1140

 

097

1493

1163

1385

1185

 

127

1535

1335

5H126

097

1325

1185

127

1535

1335

 

*Oversize frame.

18

Page 18
Image 18
Carrier 09RH specifications Weight Distribution, Condensing Units, Compressor GPM, Size