Emerson ACP User manual

ACP Automatic Expansion Valve
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.
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 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.
J
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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
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PA-00200 R1(01/14) Emerson is a trademark of Emerson Electric Co. ©2014 Emerson Climate Technologies, Inc. All rights reserved.