Emerson ACP User manual

ACP Automatic Expansion Valve

Instruction Sheet

PA-00200

January 2014

GENERAL INFORMATION

The ACP Valve is an automatic expansion valve

developed for small cooling units where the load is

reasonably constant, such as room air conditioners,

domestic refrigerators, drink dispensers, food dispensers,

ice cream cabinets bottle coolers, home freezers, ice cube

makers, ice cream freezers and milk coolers.

• Designed for use with: R-12, R-22, R-134a, R-401A,

R-402A, R-404A, R-407A,

R-407B, R-502 and R-507

• Maximum Working Pressure: 500 psig

• Maximum Working Temp.: 300°F

• ULlenumber:SA5312

• CSAlenumber:LR44005

SAFETY INSTRUCTIONS

1. WARNING:ReadInstallationandSafetyinstructions

thoroughly. Failure to follow instructions may result in

valve failure, system damage, and/or personal injury.

2. Donotuseonserviceconditionsoruidsnot

 specicallycatalogedwithoutpriorapprovalinwriting

of the Emerson Climate Technologies Flow Controls

Division Applications Engineering Department.

3. Foreign matter in the ACP valve may cause diaphragm

failure,ooding,orstarving.Toinsurethatthesystem

is thoroughly clean and dry, we recommend the use of

anEmersonEKliquidlinelter-drier.

4. Proper valve sizing is important. An oversized valve

may result in erratic control. An undersized valve may

considerably reduce system capacity.

5. Do not exceed Maximum Working Pressure

 (500PSIG).

6. DonotexceedMaximumTemperatureLimits(300°F).

INSTALLATION

1. WARNING: Before opening any system, make sure the

pressure in the system is brought to and remains at

atmospheric pressure. Failure to comply may result in

system damage and/or personal injury.

= 0 psig

2. Valves may be installed in any position, but should

be located as close as possible to the distributor or

evaporator inlet. Refer to page 2 for valve dimensions.

3. Remove the necessary seal cap from the valve

entrances.

4. Besurevalveisinstalledsothatit'sowdesign

 correspondstotheowdirectionthroughthepiping.

Failure to comply will result in valve malfunction.

In Out

5a.For SAE ACP Valves

 1a)InstallSAElineconnectionstovalve.

Note: Look in the valve body for reference.

EmersonClimate.com/FlowControls

 2a)Useabackupwrenchonwrenchatsanddonot

over tighten.

5b.For ODF ACP Valves

WARNING: The valve body and power head must under

no circumstances be subjected to temperature in excess

of 300°F.

 1b)Toavoidinternaldamageofthevalve,protctthem

with wet cloths, chill blocks or other suitable heat

protector.

 2b)Directamingbrazeawayfromvalvebody.

6. Checkforleaks,sufcientsystemrefrigerant,andbesure

noashgasispresentinliquidatthevalveinlet.

7. When viewed from the top, turning the adjusting screw in

a clockwise direction raises the valve outlet pressure and

turning counterclockwise, lowers the outlet pressure.

SERVICE

When it should become necessary to remove the valve

or any part of the valve from the system, all previously

mentionedSafetyandInstallationInstructionsshouldbe

followed exactly.

ACP(E) E F G H

VALVE TYPE INLET OUTLET A B DIA. MIN. DIA. MIN. K L M

1/4 1.50

3/8 1.64

1/2 1.72 – – –

1/4 1.50

3/8 1.64

1/2 1.72

1/4 1.25 .25 .32

3/8 .37 .32

3/8 1.19 .37 .32 4.25 1.88 1.48

1/2 .50 .38

1.19

1/2 .50 .38

5/8 5/8 1.38 1.38 .62 .50 .62 .50

1/4 1.25 .25 .32

3/8 1.19 .37 .32

1/4 1/2 1.25 1.19 .25 .32 .50 .38

1/2 .50 .38 .87 .75

3/8 .37 .32 .87 .75

STRAIGHT-THRU

SAE

STRAIGHT-THRU

ODF

3/8

1/2

5/8

1.64

1.72

1.96

7/8 1.19 1.75

ACP(E) E F G H

VALVE TYPE INLET OUTLET A B DIA. MIN. DIA. MIN. K L

1/4 1.50

3/8 1.64

1/2 1.72 – – – – –

1/4 1.50

3/8 1.64

1/2 1.72

1/4 1.25 .25 .32

3/8 .37 .32

3/8 .37 .32 4.55 2.17

1/2 .50 .38

1.19

1/2 – .50 .38

5/8 5/8 1.38 .62 .50 .62 .50 4.73 2.36

1/4 1.25 .25 .32

3/8 1.19 .37 .32

1/4 1/2 1.25 .25 .32 .50 .38 4.55 2.17

1/2 7/8 1.19 .50 .38 .87 .75 5.11 2.73

ANGLE

SAE

ANGLE

ODF

3/8

3/8 - 1/2

5/8

DIMENSIONAL DATA

4.50 2.13

4.61 2.23

EmersonClimate.com/FlowControls

Technical Support: 1-866-625-8416

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