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Instructions/Parts

Dryaire Refrigerated
Air Dryers

310884D

ENG

To remove humidity from compressed air supply.

Models 6880, 6885, 6890, and 6895

Contents

General Safety Information  . . . . . . . . . . . . . . . . . . . 2

Installation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Operation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Maintenance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Troubleshooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Electrical Schematics   . . . . . . . . . . . . . . . . . . . . . . 10

Dimensions and Weights . . . . . . . . . . . . . . . . . . . . 12

Parts List  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Warranty   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Important Safety Instructions

Read all warnings and instructions in this manual. 
Save these instructions.

Summary of Contents for 6880

Page 1: ...6880 6885 6890 and 6895 Contents General Safety Information 2 Installation 2 Operation 4 Maintenance 5 Troubleshooting 7 Specifications 9 Electrical Schematics 10 Dimensions and Weights 12 Parts List 14 Warranty 16 Important Safety Instructions Read all warnings and instructions in this manual Save these instructions ...

Page 2: ...cool the air by extending the piping between the compressor and the dryer Air Outlet Connect air outlet to downstream air lines Bypass Piping If servicing the unit without interrupting the air supply is desired piping should include inlet and outlet isolation valves and an air bypass valve Condensate Drain It is advisable to connect drain outlet to the condensate drainage system NOTE Drain dischar...

Page 3: ... 6895 115V only Install plug in receptacle rated for 20 amps Units are supplied with 20 amp plug NOTE Refrigeration system is designed to run continu ously and should NOT be wired to cycle on off with the air compressor Plug Front Left Side Control Panel Separator and Integral Filter Drain Connection Drain Mechanism Serial Tag Number Right Side Back Ambient Air Filter Pipe Nipple Air Outlet Connec...

Page 4: ...pressure dew point 95 F 35 C ambient temperature 50 F 10 C outlet pressure dew point and less than 5 psi 0 35 kgf cm2 pressure drop 60 Hz 50 Hz For dryers with an aftercooler installed upstream Flow capacity in scfm m3 min 100 F 38 C inlet temperature 100 F 38 C inlet pressure dew point 100 F 38 C ambient temperature 50 F 10 C outlet pressure dew point and less than 10 psi 0 7 kgf cm2 pressure dro...

Page 5: ...ead fitting in cab inet base To remove press the plastic collar in toward the fitting while pulling the tube out of the fitting 5 Remove bowl push bowl up turn bowl 1 8th turn to your left and pull straight down 6 Clean filter bowl 7 Replace element Replacing Complete Element 1 Pull off old element and discard 2 Make certain o ring inside top of replacement ele ment is in place and push element on...

Page 6: ...in toward the fitting while pulling the tube out of the fitting 5 Remove bowl push bowl up turn 1 8th turn to your left and pull bowl straight down 6 Remove drain tube fitting from bottom of bowl 7 Remove old drain mechanism by turning knurled fitting to the right clockwise and remove 8 Install new drain mechanism If necessary use a wire or pencil to guide the new mechanism into place 9 Reassemble...

Page 7: ... dryer Replace drain mechanism if inoperative or open drain line Check inlet air temperature and pressure flow rate compressor capacity and ambi ent air temperature See Refrigeration system not functioning properly page 8 High pressure drop across dryer Inlet air strainer clogged Excessive air flow Separator filter clogged Freezing of moisture in evaporator because of refrigeration system improp e...

Page 8: ...conditions Ambient air filter clogged Condenser fins clogged Fan motor or fan control switch malfunc tion Refrigerant leak Low voltage Check power to unit Close disconnect switch Check for continuity Have electrician check electrical connec tions Check minimum maximum temperature ranges Clean ambient air filter Clean condenser Replace fan motor or fan control switch Contact qualified refrigeration...

Page 9: ...30 178 psig 23 2 12 5 kgf cm2 Condenser Fan Switch Setting in out 240 280 psig 16 9 12 7 kgf cm2 Air Flow Across Condenser cfm m3 min 60 50 hz 60 50 hz 280 235 7 9 6 7 280 235 7 9 6 7 620 515 17 6 14 6 620 515 17 6 14 6 Electrical Data Unit 115 1 60 VAC phase hz 115 1 60 Minimum Maximum Volts 98 127 Full Load Amps FLA 7 9 7 9 13 0 13 0 Branch Circuit Fuze Size amps 15 15 20 20 Compressor Volts pha...

Page 10: ...LT Thermal Overload M Compressor Motor RC Run Capacitor HTS High Temperature Switch LT Fault Light FPS Fan Pressure Switch FM Fan Motor TB Terminal Block CT Contactor with 115V Coil All Models All Voltages Only Models 6890 and 6895 115 1 50 60 COMPONENT LOCATIONS COMPONENT LOCATIONS Front of Dryer Outside Front of Dryer Outside Right Side of Dryer Inside Right Side of Dryer Inside ...

Page 11: ...Instructions Parts Electrical Schematics 11 ...

Page 12: ... mm 1 in 25 mm 1 4 in Drain Connection 4 1 8 in 105 mm LEFT SIDE VIEW 28 1 4 in 718 mm Serial Number Tag 10 1 8 in 257 mm Air outlet 1 2 in 6 5 8 in 168 mm BACK VIEW 5 1 8 in 130 mm 1 11 16 in 41 mm 8 1 2 in 216 mm Air inlet 1 2 in 1 1 2 in 38 mm 4 1 8 in 105 mm 11 5 16 in 287 mm Replaceable Ambient Air Filter 12 7 8 in 327 mm 1 9 16 in 40 mm 10 1 8 in 257 mm RIGHT SIDE VIEW Model Weight 6880 80 l...

Page 13: ...n 419 mm 8 7 16 in 213mm 1 in 25 mm 1 4 in Drain Connection LEFT SIDE VIEW 4 5 8 in 117 1 1 2 in 38 mm 36 3 4 in 933 mm BACK VIEW 2 5 16 in 59 mm 6 7 8 in 175 mm 6 5 16 in 160 mm 9 1 8 in 232 mm Air Inlet 3 4 in Air Outlet 3 4 in Serial Tag Number 1 9 16 in 39 mm 5 1 16 in 129 mm RIGHT SIDE VIEW 16 7 8 in 429 mm Replaceable Ambient Air Filter Model Weight 6890 150 lbs 68 kg 6895 155 lbs 70 kg ...

Page 14: ...Overload Compressor 115 1 60 5925 571 12 5925 571 12 5925 571 15 5925 571 15 Overload Compressor 208 230 1 60 5925 571 13 5925 571 13 5925 571 16 5925 571 16 Overload Compressor 220 240 1 50 5925 571 14 5925 571 14 5925 571 14 5925 571 14 Switch fault light with conn 03 7419 02 03 7419 02 03 7419 03 03 7419 03 Condenser Fan Fan Motor 115 1 60 6105 226 2 6105 226 2 6105 226 7 6105 226 7 Fan Motor 2...

Page 15: ...DRYAIRE REFRIGERATED AIR DRYERS 15 ...

Page 16: ...rt THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN ORAL OR SATUTORY AND IS EXPRESSLY IN LIEU OF THE IMPLIED WARRANTY OF MERCHANTABILITY AND THE IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE THE MANUFACTURER SHALL NOT BE LIABLE FOR LOSS OR DAMAGE BY REASON OF STRICT LIABILITY IN TORT OR ITS NEGLIGENCE IN WHATEVER MANNER INCLUDING DESIGN MANUFACTURE OR ...

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