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INTRODUCTION

Compressed air is generated by compressing atmospheric 

air of which contains moisture and other containments, into 

high pressure air. After compression, the air is not saturated 

but when it is cooled by the aftercooler, the relative humidity 

becomes 100%.
As compressed air travels down the pipe line and cools further, 

moisture starts to condensate into liquid water. Condensate 

water in the pipe line is harmful to the manufacturing process 

as it causes rust or sludge etc.
In order to avoid this problem, the only solution is to dry the 

compressed air with an air dryer. Refrigerated compressed air 

dryers are used as a cost effective and energy efficient solu-

tions for eliminating moisture from the compressed air system.
The discovery of using Phase Change Material (PCM) as a com-

ponent in the refrigerated compressed air dryer to produce 

latent heat has encouraged great energy savings. Through 

latent heat properties, it is able to save up to 99% of energy at 

no load condition. This is indeed a breakthrough in refrigerated 

compressed air dryer technology.

SAFETY

The dryers are designed and built with safety as a prime con-

sideration; industry accepted safety factors have been used in 

the design. Each dryer is checked at the factory for safety and 

operation. All necessary adjustments are made before shipment.
Follow the maintenance schedules outlined in this manual for 

good performance and safe operation. 
Only qualified personnel with proper tools should do mainte-

nance.

Safety instructions in this manual used to indicate hazard 

seriousness levels are classified as follows:

Immediate hazard which WILL result in severe injury or 

death.

 

Hazard or unsafe practice which COULD result in severe 

injury or death.

Hazard or unsafe practice which COULD result in minor 

injury or product damage. 

 

Carefully read the following safety rules before proceed-

ing with installation, operation or maintenance. The rules 

are essential to ensure safe dryer operation. Failure to 

follow these rules may void the warranty or result in dryer 

damage or personal injury.

1.  Do not install or try to repair a dryer that has been damaged 

in shipment. See Receiving and Inspection for instructions.

2.  Compressed air and electricity have the potential to cause 

personal injury or equipment damage. Before doing any 

work on the dryer, be sure the electrical supply has been 

locked and tagged and the internal pressure of the dryer 

has been vented to the atmosphere.

3.  Do not operate the dryer at pressures or temperatures 

above the maximum conditions shown on the data plate.

4.  Always supply electrical power that complies with the volt-

age shown on the data plate.

5.  Do not readjust the dryer without factory authorization.
6.  Do not operate the dryer with any dryer cabinet panel 

removed.

 

 

 

Cooling air flow across the condenser may be reduced 

if a dryer panel has been removed while the dryer 

is operating, resulting in the dryer not functioning 

properly and/or dryer failure. Failure to follow these 

instructions may result in a non-warrantable dryer 

failure.

  

7.  Only a competent refrigeration mechanic works on the 

refrigeration system.

8.  Use only manufacturer’s genuine replacement parts. The 

manufacturer bears no responsibility for hazards caused 

by the use of unauthorized parts. 

INSTALLATION

Inspect the dryer closely when it is received. Record any indica-

tion of damage on the delivery receipt, especially if the dryer 

will not be immediately uncrated. Obtain the delivery person’s 

signed agreement to recorded damages to facilitate future 

insurance claims .
Since the dryer is shipped F.O.B. Factory, the manufacturer’s 

responsibility for the shipment ceases when the carrier signs 

the bill of lading.
If goods are received short or in damaged condition, notify the 

carrier and insist on a notation of the loss or damage across 

the face of the freight bill. Otherwise no claim can be enforced 

against the carrier. 
If concealed loss or damage is discovered, notify your carrier 

at once and request an inspection. This is absolutely necessary. 

Unless you do this, the carrier will not consider any claim for 

loss or damage. The carrier will make an inspection and may 

grant a concealed damage notation. If you give the carrier a 

clear receipt for the goods that have been damaged or lost in 

transit, you do so at your own risk and expense.
The manufacturer is willing to assist you in collecting claims for 

loss or damage. Willingness does not make the manufacturer 

responsible for collecting claims or replacing material. Claim 

filing and processing is your responsibility.

MCGUIRE AIR COMPRESSORS INC

1-888-229-9999

MCGUIRE AIR COMPRESSORS INC

1-888-229-9999

Summary of Contents for SPXFLOW FLEX DFX 12.5

Page 1: ...FX 12 5 DFX 15 1 DFX 20 1 FOR M NO 7473076 R EVI S ION 08 2019 R EAD AN D U N D E R STAN D TH I S MAN UAL PR IOR TO OPE RATI NG OR S E RVICI NG TH I S PROD UCT I N STR UCTION MAN UAL MCGUIRE AIR COMPR...

Page 2: ...7 DRAWINGS General Arrangement Model DFX 8 1 8 Models DFX 12 5 DFX 15 1 9 Model DFX 20 1 10 Electrical Schematic 11 Air and Refrigerant Flow Schematic Model DFX 8 1 12 Models DFX 12 5 DFX 15 1 DFX 20...

Page 3: ...ity have the potential to cause personal injury or equipment damage Before doing any work on the dryer be sure the electrical supply has been locked and tagged and the internal pressure of the dryer h...

Page 4: ...ittings must be rated for the maximum operating pressure given on the dryer data plate and must be in accor dance with applicable codes Support all piping do not allow the weight of any piping to stre...

Page 5: ...ated by incoming warm air as it passes back through the air to air heat exchanger Using the outgo ing air to pre cool the inlet air condenses up to 65 percent of the moisture out of the inlet air befo...

Page 6: ...omponent of the compressed air system under pressure may cause equipment failure and serious personal injury Operation 1 To start the dryer turn on the a dryer on off switch 2 When the refrigeration c...

Page 7: ...HA approved air nozzle that limits its discharge pressure to 30 psig 2 1 kgf cm2 Yearly Maintenance It is recommended to replace the drain service unit annually For units purchased with a filtration p...

Page 8: ...let air temperature too high Reduce aftercooler discharge temperature to design conditions See Engineering Data Tables Excessive airflow Check airflow and system capacity Reduce airflow or resize and...

Page 9: ...Setting cut in cut out 217 5 275 6 psig 15 19 barg Electrical Data Nominal Voltage 460 3 60 Input Power Rated Flow watts 4 300 7 600 9 000 10 000 Minimum Circuit Ampacity 9 8 16 5 16 9 20 4 Maximum Ov...

Page 10: ...92 760 31 50 800 58 59 1488 3 94 100 54 02 1372 50 08 1272 3 ANSI Flange 1133 514 HOLE FOR MAIN POWER DRAIN OUTLET 4 10 MOUNTING HOLES FOOT PRINT H G C F A B E J VENT DRAIN VALVE D WETTED AIR INLET D...

Page 11: ...1350 4 ANSI Flange 1537 697 DFX 15 1 10 85 276 19 69 500 6 09 155 37 80 960 39 37 1000 58 59 1488 3 94 100 57 09 1450 53 15 1350 4 ANSI Flange 1766 801 HOLE FOR MAIN POWER DRAIN OUTLET 4 10 MOUNTING H...

Page 12: ...09 155 37 80 960 39 37 1000 58 59 1488 3 94 100 63 78 1620 59 84 1520 4 ANSI Flange 2028 920 HOLE FOR MAIN POWER DRAIN OUTLET 4 10 MOUNTING HOLES FOOT PRINT H G A B F E C J D VENT DRAIN VALVE TOPVIEW...

Page 13: ...SW 2 3 4 T R S MC1 COMP 0V 480V 0V 120V 460V 3PH 60HZ W1 U1 V1 E 2 1 MAIN POWER TH1 AC IN COMP ALARM DRAIN COM ON R1 S1 FG S2 R2 COM ON COM N C N 0 TS3 TS2 DRAIN TRAP 24 21 12 25 20 30 TS1 DRAIN TRAP...

Page 14: ...VE DRAIN OUTLET NO LOSS VALVE EXPANSION DEVICE TEMP SENSOR2 TS2 SEPARATOR FILTER TEMP SENSOR3 TS3 MANUAL REFRIGERANT COMPRESSOR CONDENSER COOLING AIR FLOW AIR COOLED FILTER CONDENSER AIR COOLED HIGH P...

Page 15: ...OOLED TEMP SENSOR2 TS2 TEMP SENSOR3 TS3 FILTER CONDENSER AIR COOLED HEAT EXCHANGER AIR AIR REF PCM AIR REHEATER CHILLER BRAZED PLATE HEAT EXCHANGER BRAZED PLATE DRAINVALVE DRAIN OUTLET NO LOSS VALVE S...

Page 16: ...06 Separator 7473007 7473008 7473008 7473009 White Temperature Sensor 7440388 7440388 7440388 7440388 Red Temperature Sensor 7440389 7440389 7440389 7440389 Yellow Temperature Sensor 7440390 7440390 7...

Page 17: ...15 NOTES MCGUIRE AIR COMPRESSORS INC 1 888 229 9999 MCGUIRE AIR COMPRESSORS INC 1 888 229 9999...

Page 18: ...MCGUIRE AIR COMPRESSORS INC 1 888 229 9999 MCGUIRE AIR COMPRESSORS INC 1 888 229 9999...

Page 19: ...manufacturer s product The maximum damages liability of the manufacturer is the original purchase price of the product or part THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES W...

Page 20: ...vements and research are continuous at SPX FLOW Inc Specifications may change without notice ISSUED 08 2019 Form No 7473076 Revision None COPYRIGHT 2019 SPX FLOW Inc FLEX Series Refrigerated Type Comp...

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