Devair PROdry Bedienungsanleitung

7610.724.11B 10/01

INSTRUCTION MANUAL

SERVICE DEPARTMENT: (800) 475-5660

PROdry

High Inlet

Temperature

refrigerated

compressed air

dryers

General Safety Information

1. Pressurized devices

This equipment is a pressure containing device.

•Do not exceed maximum operating pressure as

shown on equipment serial number tag.

•Make certain equipment is depressurized before

servicing.

2. Electrical

This equipment requires electricity to operate.

•Install equipment in compliance with national and

local electrical codes.

•Standard equipment is supplied with NEMA 1

electrical enclosures and is not intended for

installation in hazardous environments.

•Disconnect power supply to equipment when per-

forming any electrical service work.

3. Breathing air

•Air treated by this equipment may not be suitable

for breathing without further purification. Refer to

OSHA standard 1910.134 for the requirements for

breathing quality air.

Contents

1.0 INSTALLATION ....................................................... 2

2.0 OPERATION ........................................................... 3

3.0 MAINTENANCE ..................................................... 4

TROUBLESHOOTING GUIDE ........................................... 6

SPECIFICATIONS ......................................................... 7-8

ELECTRICAL SCHEMATICS .............................................. 9

DIMENSIONS AND WEIGHTS ................................... 10-12

PARTS LIST ............................................................. 13-14

WARRANTY ................................................................. 16

2. Location in the compressed air system

A. Maximum working pressure - 175 psig,

12.3 kgf/cm 2. Do not exceed unit’s Maximum Working

Pressure.

1) For maximum capacity, install unit in air system at

highest pressure possible (e.g. before pressure

reducing valves)

2) For maximum capacity, install unit at coolest

compressed air temperature possible. Maximum

inlet compressed air temperature: 180 °F, 82°C. If

inlet air exceeds this temperature, precool the air

by extending the piping between the compressor

and the dryer.

B. Air Outlet - Connect air outlet to downstream air lines.

C. By-pass piping - If servicing the unit without interrupt-

ing the air supply is desired, piping should include inlet

and outlet isolation valves and an air by-pass valve.

D. Condensate drain - It is advisable to connect drain

outlet to the condensate drainage system.

NOTE: Drain discharge is at system pressure. Drain line

should be anchored to prevent whipping.

1.4 Electrical connections

A. Dryer is designed to operate on power supply (volt-

age) listed on serial number tag located on the back of

the dryer.

B. Dryer is supplied with an electrical cord. Install in

receptacle of proper voltage.

NOTE: Models 50 and 75 (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.

e a m e

Ambient Air Filter

Electrical

Connection

Control

Panel

Air Inlet

Connection

Serial

Number

Tag

Drain

Connection Air Outlet

Connection

Separator and

Integral Filter

kcaBtnorFediStfeL Right Side

Strainer

(shipped

separately)

Drain

Mechanism

Pipe Nipple

1.0 INSTALLATION

1.1 Location

A. Air compressor intake - Locate air compressor so that

contaminants potentially harmful to the dryer are not

drawn into the air system.

B. Free air flow - Do not block either side of the cabinet.

Observe minimum installation clearances as shown.

1.2 Mounting

Dryer is suitable for floor or shelf mounting.

1.3 Piping connections

A. Air Inlet - Connect compressed

air line from air compressor to

air inlet using strainer supplied.

1. Install strainer (included in

shipping carton) prior to

dryer inlet using pipe nipple

supplied or other piping as

required.

NOTE: Observe flow direction arrows on strainer.

NOTE: Install strainer where it is easily accessible for

cleaning.

NOTE: Use vibration dampener, if vibration exists in air line

at inlet to dryer.

24"

12"

wall

36"

Plug

2.0 OPERATION

NOTE: Installations above 6000 feet, 1825 meters

Unit is adjusted to operate in altitudes up to 6000 feet,

1825 meters. If unit is installed in an altitude above this,

and has not been preset at the factory for this altitude,

contact Manufacturer’s Service Department.

2.1 Start-up

Start refrigeration system by pushing the on/off switch to

the ON position (depress rocker switch on side marked

“I”).

NOTE: The fault light may illuminate when unit is ener-

gized. Light should go out approximately 5 minutes

after start-up. If light remains lit after 30 minutes or

illuminates after going out, refer to Troubleshooting

Guide.

2.2 Operating check points

Check the following on a periodic basis:

A. Rocker switch is in the ON position.

B. Amber fault light is out.

C. Condensate is being regularly discharged.

2.3 Minimum/maximum operating conditions

A. Minimum/Maximum air pressure: 20/175 psig,

1.4/12.3 kgf/cm 2

B. Maximum inlet air temperature: 180 °F, 82°C

C. Minimum/Maximum ambient temperature:

35/110°F, 2/43 °C

Control Panel

On/Off Switch Fault Light

2. For dryers with an aftercooler installed upstream

Flow capacity in scfm (m 3/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/cm 2

pressure drop.

175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)

20 23 (0.65) 22 (0.62) 20 (0.57) 18 (0.51)

25 29 (0.82) 27 (0.76) 25 (0.71) 23 (0.65)

35 41 (1.16) 38 (1.08) 35 (0.99) 32 (0.91)

Model 50 58 (1.64) 54 (1.53) 50 (1.42) 45 (1.27)

75 87 (2.46) 81 (2.29) 75 (2.12) 68 (1.93)

100 116 (3.29) 108 (3.06) 100 (2.83) 91 (2.58)

125 145 (4.12) 135 (3.82) 125 (3.54) 114 (3.23)

D. Maximum flow capacity

1. For dryers without an aftercooler installed upstream

Flow capacity in scfm (m 3/min) @ 180 °F, 82°C inlet

temperature, 160 °F, 71°C inlet 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/cm 2

pressure drop.

175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)

20 20 (0.57) 18 (0.51) 17 (0.48) 15 (0.42)

25 24 (0.68) 23 (0.65) 21 (0.59) 19 (0.54)

35 31 (0.88) 29 (0.82) 27 (0.76) 24 (0.68)

Model 50 58 (1.64) 54 (1.53) 50 (1.42) 45 (1.27)

75 71 (2.01) 66 (1.87) 61 (1.73) 55 (1.56)

100 97 (2.75) 90 (2.55) 83 (2.35) 76 (2.15)

125 121 (3.43) 112 (3.17) 104 (2.95) 95 (2.69)

50 HZ

60 HZ

50 HZ

Inlet Pressure

psig (kgf/cm2)

Inlet Pressure

psig (kgf/cm2)

175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)

20 32 (0.91) 30 (0.85) 28 (0.79) 25 (0.71)

25 40 (1.13) 37 (1.05) 34 (0.96) 31 (0.88)

35 55 (1.56) 51 (1.44) 47 (1.33) 43 (1.22)

Model 50 78 (2.21) 73 (2.07) 67 (1.90) 61 (1.73)

75 118 (3.34) 110 (3.12) 102 (2.89) 92 (2.61)

100 157 (4.45) 146 (4.14) 136 (3.85) 123 (3.48)

125 197 (5.58) 183 (5.18) 170 (4.82) 155 (4.39)

Inlet Pressure

psig (kgf/cm2)

175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)

20 27 (0.76) 25 (0.71) 23 (0.65) 21 (0.59)

25 33 (0.93) 31 (0.88) 29 (0.82) 26 (0.74)

Model 35 43 (1.22) 40 (1.13) 37 (1.05) 33 (0.93)

50 78 (2.21) 73 (2.07) 67 (1.90) 61 (1.73)

75 96 (2.72) 90 (2.55) 83 (2.35) 75 (2.12)

100 131 (3.71) 122 (3.46) 113 (3.20) 102 (2.89)

125 164 (4.65) 152 (4.31) 142 (4.02) 129 (3.65)

Inlet Pressure

psig (kgf/cm2)

3.0 MAINTENANCE

DRYER IS A PRESSURE CONTAINING DEVICE.

DEPRESSURIZE BEFORE SERVICING.

3.1 Ambient air filter- Clean accumulated dust and dirt

from ambient air filter monthly or more often if air

flow across the condenser is impeded.

A. Remove top panel.

B. Remove ambient air filter by sliding upwards.

C. Wash with soap and water and allow to dry before re-

installing.

NOTE: Do not use solvents to clean ambient air filter.

D. Reinstall filter and top panel.

3.2 Inlet strainer- clean inlet strainer monthly or more

often if rapid clogging occurs.

A. Shut-off compressed air supply to the strainer

and depressurize.

B. Remove screen and clean or replace.

C. Reinstall.

Screen

3.3 Replace separator/filter element yearly or

more often if pressure drop across the dryer

is excessive.

A. Shut-off compressed air supply to the dryer and

depressurize.

B. Remove top panel.

C. Remove two screws holding side panel and remove

side panel by sliding upwards.

D. Disconnect drain tube from bulkhead fitting

in cabinet base. To remove, press the plastic

collar in, toward the fitting, while pulling the tube out

of the fitting.

E. Remove bowl - push bowl up, turn bowl 1/8th turn to

your left, and pull straight down.

F. Clean filter bowl.

G. Replace element.

1. Replacing complete element

a) Pull off old element and discard.

b) Make certain O-ring inside top of

replacement element is in place and push

element onto filter head.

2. Replacing sleeve only

a) Pull element straight down to remove.

b) Remove bolt and bottom cap and remove

disposable filter sleeve.

c) Clean separator core with soap and water

if necessary

d) Slide new filter sleeve over separator core and

replace bottom cap and hand tighten bolt.

e) Make certain O-ring inside top of element is in

place and push element onto filter head.

H. After making sure that O-ring and wave spring inside

top of bowl are in place, reassemble bowl to head.

NOTE: Make certain O-ring is generously lubricated

NOTE: Wave spring ends should be pointed down

to prevent the wave spring from interfering

with reassembly.

I. Reconnect drain tube to bulkhead fitting by pushing

tube into fitting until it locks in position.

J. Reinstall side and top panels.

K. Repressurize dryer and resume operation.

Element o-ring Separator Element

Bowl o-ring

Drain Mechanism

Wave Spring

Tube

Hose

Barb

3.4 Automatic condensate drain

•Check daily to be sure automatic drain is

discharging.

•Replace drain mechanism yearly.

A. Shut-off compressed air supply to the dryer

and depressurize.

B. Remove top panel.

C. Remove two screws holding side panel then

remove side panel by sliding upwards.

D. Disconnect drain tube from bulkhead fitting in

cabinet base. To remove, press the plastic collar in,

toward the fitting, while pulling the tube out of the

fitting.

E. Remove bowl - push bowl up, turn 1/8th turn to

your left, and pull bowl straight down.

F. Remove drain tube fitting from bottom of bowl.

G. Remove old drain mechanism by turning knurled

fitting to the right (clockwise) and remove.

H. Install new drain mechanism. If necessary, use a

wire or pencil to guide the new mechanism into

place.

I. Reassemble drain tube fitting to bowl.

J. After making sure that large O-ring in filter head is

in place, reassemble bowl to head.

K. Reconnect drain tube to bulkhead fitting by

pushing tube into fitting until it locks in position.

L. Reinstall top and side panels.

M. Repressurize dryer and resume operation.

TROUBLESHOOTING GUIDE

C) Fault Alarm

A) Water downstream of dryer 1. Residual free moisture remaining in

downstream pipelines

2. Air by-pass system is open

3. Inlet and Outlet connections are

reversed

4. Temperatures surrounding air lines

downstream of dryer have dropped

below dryers dew point rating.

5. Excessive free moisture (bulk liquid)

at dryer inlet

6. Condensate not being automatically

drained

Drain mechanism is clogged or

inoperative.

Drain line is restricted or frozen.

7. Dryer overloaded resulting in

elevated dew point.

8. Refrigeration system not functioning

properlyresulting in elevated dew

point.

1. Inlet air strainer clogged

2. Excessive air flow

3. Separator filter clogged.

4. Freezing of moisture in evaporator

because of refrigeration system

improperly functioning.

1. Dryer overloaded resulting in high

air outlet temperature.

2. Refrigeration system not function-

ing properly resulting in high air

outlet temperature.

3. Unit functioning normally but

thermostatic switch is malfunction-

ing or not securely mounted.

Blow out system with dry air

Check valve positions

Check for correct connection

Insulate or heat trace air lines exposed

to low ambients or dry air to lower

dew point

Install separator ahead of dryer

B) High pressure drop across

dryer

SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION

Replace drain mechanism if inoperative

Open drain line

Check inlet air temperature and

pressure, flow rate (compressor

capacity) and ambient air temperature

See D below

Clean inlet air strainer

Check flow rate

Replace filter sleeve

See D below

See A 7

See D below

Contact qualified refrigeration repair-

man or manufacturer’s service depart-

ment

Check power to unit

Close disconnect switch

Check for continuity

Have electrician check electrical

connections

Check minimum/maximum tempera-

ture ranges

Clean ambient air filter

Clean condenser

Replace fan motor or fan control

switch

Contact qualified refrigeration repair-

man or manufacturer's service depart-

ment

Check wiring

D) Refrigeration system not

functioning properly

1. When dryer on/off switch in on or

"I" position

2. Refrigerant compressor cycles on

and off

a. Power failure

b. Line disconnect switch open

c. Blown fuses, open breaker

d. Faulty wiring, loose terminals

a. High or low ambient conditions

b. Ambient air filter clogged

c. Condenser fins clogged

d. Fan motor or fan control switch

malfunction

e. Refrigerant leak

f. Low voltage

SPECIFICATIONS- Models 20 thru 75

ledoMnoitpircseD

20 25 35 50 75

Operating Conditions

Rated Capacity scfm 60 / 50 Hz 20 / 17 25 / 21 35 / 27 50 / 50 75 / 61

@125 psig, 8.8 kgf/cm 2* m 3/min 60 / 50 Hz 0.57 / 0.48 0.71 / 0.59 0.99 / 0.76 1.42 / 1.42 2.12 / 1.7

mc/fgk3.21(gisp571erusserPgnikroWmumixaM 2)

081erutarepmeTtelnImumixaM �F (82�C)

011-53erutarepmeTtneibmA.xaM/niM �F (2-43�C)

Pressure Drop @ psi 60 / 50 Hz 4.5 / 2.9 3.3 / 2.4 4.7 / 2.9 4.5 / 4.5 3.8 / 2.2

rated capacity (kgf/cm 2)60 / 50 Hz (0.32 / 0.20) (0.23 / 0.17) (0.33 / 0.20) (0.32 / 0.32) (0.27 / 0.15)

Refrigeration System Data

roticapaCtilpStnenamreP,yratoR,citemreHepyTrosserpmoC

BTU/HR - Refrigeration Only

@ ASRE-T Conditions 60 / 50 Hz 6800 / 5500 6800 / 5500 6800 / 5500 12850 / 10100 12850 / 10100

Outlet Air Temperature

551)snoitidnocdetar@lanimon( �F (68�C)

Refrigerant Type R-407C

Refrigerant Charge oz (grams) 60 / 50 Hz 11.0 (312) 12.0 (340) 12.0 (340) 18.0 (510) 20.5 (581)

mc/fgk7.4(gisp76gnitteSerusserPnoitcuS 2)

Factory Test (design) Pressure

mc/fgk5.21/2.32(gisp871/033ediswol/edishgih 2)

mc/fgk7.21-9.61(gisp081-042)tuo-ni(gnitteShctiwSnaFresnednoC 2)

Air Flow Across Condenser cfm 60 / 50 Hz 280 / 235 280 / 235 280 / 235 620 /515 620 / 515

(m 3/min) 60 / 50 Hz (7.9 / 6.7) (7.9 / 6.7) (7.9 / 6.7) (17.6 / 14.6) (17.6 / 14.6)

Electrical Data

Unit 115/1/60

VAC/phase/Hz 115/1/60

Minimum/maximum volts 98-127

0.310.319.79.79.7)ALF(SpmAdaoLlluF

0202515151)spma(eziSesuFtiucriChcnarB

Compressor

Volts/phase/Hz 115/1/60

1.111.117.67.67.6)ALR(spmadaoLdetaR

0.360.360.730.730.73)ARL(spmarotoRdekcoL

05210521546546546)tupni(sttaW

Overload Thermal and Current (Auto Reset)

Condenser fan motor

53/1/51153/1/51152/1/51152/1/51152/1/511)tuptuo(sttaW/esahp/stloV

6.16.12.12.12.1)ALF(spmAdaoLlluF

Other Loads

2.0/200.0/5112.0/200.0/5112.0/200.0/5112.0/200.0/5112.0/200.0/511sttaW/spma/stloV

Unit 220-240/1/50

VAC/phase/Hz 220-240/1/50

Minimum/maximum volts 198-264

0.60.65.35.35.3)ALF(spmAdaoLlluF

5151515151)spma(eziSesuFtiucriChcnarB

Compressor

Volts/phase/Hz 220-240/1/50

1.51.59.29.29.2)ALR(spmadaoLdetaR

0.820.820.410.410.41)ARL(spmarotoRdekcoL

099099045045045)tupni(sttaW

Overload Thermal and Current (Auto Reset)

Condenser fan motor

6.52/1/042-0226.52/1/042-0223.81/1/042-0223.81/1/042-0223.81/1/042-022)tuptuo(sttaW/esahp/stloV

8.08.06.06.06.0)ALF(spmAdaoLlluF

Other Loads

4.0/200.0/042-0224.0/200.0/042-0224.0/200.0/042-0224.0/200.0/042-0224.0/200.0/042-022sttaW/spma/stloV

*Capacity @ 180°F, 82°C inlet temperature. 160°, 71°C inlet 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/cm pressure drop.

SPECIFICATIONS-Models 100 and 125

ledoMnoitpircseD

100 125

Operating Conditions

Rated Capacity scfm 60 / 50 Hz 100 / 83 125 / 104

@125 psig, 8.8 kgf/cm 2* (m 3/min) 60 / 50 Hz (2.83 / 2.35) (3.54 / 2.95)

mc/fgk3.21(gisp571erusserPgnikroWmumixaM 2)

081erutarepmeTtelnImumixaM °F (82°C)

011-53erutarepmeTtneibmA.xaM/niM °F (2-43°C)

Pressure Drop @ psi 60 / 50 Hz 3.5 / 2.6 4.6 / 3.1

rated capacity (kgf/cm 2)60 / 50 Hz (0.25 / 0.18) (0.32 / 0.22)

Refrigeration System Data

roticapaCtilpStnenamreP,yratoR,citemreHepyTrosserpmoC

BTU/HR - Refrigeration Only

@ ASRE-T Conditions 60 / 50 Hz 25100 / 20385

Outlet Air Temperature

551)snoitidnocdetar@lanimon( °F (68°C)

C704-RepyTtnaregirfeR

Refrigerant Charge oz (grams) 60 / 50 Hz 30 (851) 31 (880)

mc/fgk17.4(gisp76gnitteSerusserPnoitcuS 2)

Factory Test (design) Pressure

mc/fgk5.11/2.22(gisp361/513ediswol/edishgih 2)

mc/fgk7.21-9.61(gisp081-042)tuo-ni(gnitteShctiwSnaFresnednoC 2)

Air Flow Across Condenser cfm 60 / 50 Hz 830 / 690

(m 3/min) 60 / 50 Hz (23.5 / 19.5)

Electrical Data

Unit 208-230/1/60

06/1/032zH/esahp/CAV

352-781stlovmumixam/muminiM

Full Load Amps (FLA) 13.3

02)spma(eziSesuFtiucriChcnarB

Compressor

06/1/032-802zH/esahp/stloV

Rated Load amps (RLA) 12.2

Locked Rotor amps (LRA) 65.8

0932)tupni(sttaW

)teseRotuA(tnerruCdnalamrehTdaolrevO

Condenser fan motor

06/1/032)tuptuo(sttaW/esahp/stloV

Full Load Amps (FLA) 1.1

Other Loads

4.0/200.0/032sttaW/spma/stloV

Unit 220-240/1/50

05/1/042-022zH/esahp/CAV

462-891stlovmumixam/muminiM

Full Load Amps (FLA) 10.7

51)spma(eziSesuFtiucriChcnarB

Compressor

05/1/042-022zH/esahp/stloV

Rated Load amps (RLA) 9.6

Locked Rotor amps (LRA) 48.5

0991)tupni(sttaW

)teseRotuA(tnerruCdnalamrehTdaolrevO

Condenser fan motor

05/1/032)tuptuo(sttaW/esahp/stloV

Full Load Amps (FLA) 1.1

Other Loads

4.0/200.0/042-022sttaW/spma/stloV

* Capacity @ 180°F, 82°C inlet temperature, 160°F, 71°C inlet 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/cm

2pressure drop.

ELECTRICAL SCHEMATICS

Models 20 thru 75 - All Voltages

Only Models 50 and 75 - 115-1-50/60

LINE

TEMPERATURE

FPS

CONDENSER

FAN MOTOR

HTS

C S

REFRIGERANT

COMPRESSOR

HIGH

WIRING SCHEMATIC

Models 100 and 125 - All Voltages

FPS

HTS

OLT

Front of Dryer

(Outside)

Right Side of Dryer

(Inside)

COMPONENT LOCATIONS

Models 20 thru 125 - All Voltages

FPS

HTS

OLT

Front of Dryer

(Outside)

Right Side of Dryer

(Inside)

COMPONENT LOCATIONS

LEGEND

SW - On/Off Switch

OLT - 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 w/115V Coil

Only Models 50 and 75 - 115-1-50/60

TEMPERATURE

CONDENSER

FAN MOTOR

REFRIGERANT

COMPRESSOR

HIGH

NEMA 5-20P

PLUG 20A, 125V

DIMENSIONS AND WEIGHTS

Models 20, 25, 35

Model Weight

20 79 lbs (36 kg)

25 80 lbs (36 kg)

35 81 lbs (37 kg)

718 mm

317 mm

105mm

1.9/16 "

40mm

5mm 217 mm

1" 25 mm

6mm

257mm

5.1/16 "

128 mm

257mm

216mm

41mm

130mm

105mm

287mm

1.1/2"

38mm

168mm

21mm

327 mm

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