speedaire by dayton refrigerated compressed air dryers · 3.if servicing the dryer without...

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FRANÇAIS

General Safety Information1. This equipment is a

pressure containingdevice. Do not exceedmaximum operating pressure asshown on equipment serial numbertag. Make sure equipment isdepressurized before working on ordisassembling it for service.

2. This equipment requireselectricity to operate.Install equipment incompliance with all applicableelectrical codes. Standard equipmentis supplied with electrical enclosuresnot intended for installation inhazardous environments. Disconnectpower supply to equipment whenperforming any electrical servicework.

3. Air treated by this equipmentmay not be suitable forbreathing without furtherpurification. Refer to applicablestandards and specifications for therequirements for breathing qualityair.

found upon unpacking, notify thecarrier immediately and insist on his agent inspecting the shipment.

Concealed damage claims are not ourresponsibility as our terms are F.O.B.point of shipment.

MovingIn moving or transporting dryer, do nottip dryer onto its side.

StorageIMPORTANT - Do not store dryer intemperatures above 130°F, 54.4°C.

ReceivingThis shipment has been thoroughlychecked, packed and inspected beforeleaving our plant. It was received ingood condition by the carrier and wasso acknowledged.

Check for visible loss or damage. If thisshipment shows evidence of loss ordamage at time of delivery to you,insist that a notation of this loss ordamage be made on the deliveryreceipt by the carrier’s agent.

UnpackingCheck for concealed loss or damage. When a shipment has beendelivered to you in apparent good order, but concealed damage is

Form 5S5375 5/05 Printed in U.S.A. 8610.481.1A047570505/189/VCPVP

AIR CONNECTION MAXIMUM DIMENSIONSWorking Inlet Height Width Depth Weight

Model Inlet/Outlet Pressure Temperature (lbs)

3YA49 3/8” OD Tube 250 psiG 122°F 15.4” 12.6” 12.6” 64

3YA50 3/8” OD Tube 250 psiG 122°F 15.4” 12.6” 12.6” 69

Specifications

DescriptionSpeedaire by Dayton refrigerated compressed air dryers are used to cool compressed air to 38° to 50°F (3° to 10°C), thereby condensing water vapor in the compressed air to liquid form, for removal from your air system. Removal of this water vapor allows you to keep air tools, air valves and cylinders, spray guns, and any air operated device clean and dry. This reduces downtime and maintenance from malfunctioning equipment due to dirt and water. Speedaire by Dayton dryers work best when sized close to the cubic feet per minute load as rated. Following the installation and maintenance information will result in maximum performance and life from the dryers.

Operating Instructions and Parts Manual 3YA49 and 3YA50

Speedaire® by Dayton® RefrigeratedCompressed Air Dryers

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described.Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference.

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7610.483.6/031042

INTERNAL USE ONLY

Installation

LOCATION1. For typical placement in a com-

pressed air system, see Figure 1.

2. Air compressor intake - Locate air compressor so that contaminantspotentially harmful to the dryer(e.g. ammonia) are not drawn intothe air system.

3. Clearances

Free air flow - Allow at least 6inches (153 mm) clearance from thefront and from the condenser sidesof the cabinet. It is possible tomount the back side flush against awall if all other clearances aremaintained.

Service - To facilitate maintenance, allow 24” (610 mm) of clearance for drain maintenance.

4. Standard units are designed tooperate in ambients from 40 to113°F (4 to 45°C).

MOUNTINGDryer may be installed on a suitableshelf or floor stand.

PIPING1. Air Inlet - Connect compressed air

line from air source to air inlet.

Refer to serial numbertag for maximum working pressure.Do not exceed dryer's maximumworking pressure.

NOTE: Install dryer in air system athighest pressure possible (e.g. beforepressure reducing valves)

NOTE: Install dryer at coolestcompressed air temperature possible.Maximum inlet compressed airtemperature: 122°F (50°C). If inlet airexceeds this temperature, precool theair with an aftercooler.

2. Air Outlet - Connect air outlet todownstream air lines.

3. If servicing the dryer withoutinterrupting the air supply isdesired, piping should include inletand outlet valves and an air by-passvalve.

NOTE: One-piece air by-pass valve, ifordered with dryer, has been shippedseparately in carton for fieldmounting.

MOISTURE SEPARATOR1. Separator has an internal drain

which automatically discharges collected condensate. It may be desirable to pipe the condensate from the automatic drain outlet to a suitable drain.

NOTE: Discharge is at system pressure.Drain line should be anchored.

NOTE: Condensate may contain oil.Comply with applicable lawsconcerning proper disposal.

VOLTAGE REQUIREMENTS1. Dryer is designed to operate on the

voltage, phase, and frequency listedon serial number tag.

2. Dryer is supplied with a cord andplug. Install in receptacle of propervoltage.

NOTE: Refrigeration condensing unitis designed to run continuously andshould NOT be wired to cycle on/offwith the air compressor.

To Point of Use

FromCompressor

DryerOutlet

DryerInlet

Figure 3 - Optional Air By-Pass Valve

Figure 1 - Typical Placement

Compressor Oil RemovalFilter

Dryer

Separator

Aftercooler

3YA49 and 3YA50


Speedaire by Dayton Operating Instructions and Parts Manual

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NI

TUO

Locking Clip Stud

Existing Installation

New Installation

Dryer Hanger

Figure 2 - Optional Wall Mounting Bracket(Retrofits models 8005-8015)

Electrical

FLOW CAPACITY(scfm)* PDP Input Fuse Electric Overload

Model Horsepower 38°F 50°F Power Protection Rating Protection

(3°C) (10°C) (kW) (amps)

3YA49 1/8 10 13 .21 15 115V, 60 Hz Thermal

3YA50 1/7 15 20 .24 15 Single Phase and current

(*) Dryers are designed to produce a 38°F (3°C) or a 50°F (10°C) pressure dewpoint at 100°F (38°C) air inlet temperature, 100 psiG

inlet pressure, and up to 100°F (38°C) ambient air temperature.

Models 3YA49 and 3YA50


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ELECTRICAL DRAWING

MINIMUM/MAXIMUM OPERATINGCONDITIONS

a) Maximum inlet air pressure: refer to unit serial number tag

b) Minimum inlet air pressure:30 psiG (2.1 kgf/cm2)

c) Maximum inlet air temperature: 122°F (50°C)

d) Maximum ambient temperature: 113°F (45°C)

e) Minimum ambient temperature: 40°F (4°C)

INSTRUMENTATION

ON/OFF SWITCHThe dryer is equipped with an ON/OFFswitch on the front panel. A lightsignals when the dryer is on.

CONDENSATE DRAIN VALVES (10 scfm model) A float operateddrain is housed in a metal bowl. It willautomatically drain the condensate.

(15 scfm model) An electronic drainvalve is supplied to automaticallydischarge condensate from the dryer.The drain valve and its controls areaccessible from the right side of thedryer. The electronic drain valve has twoindicators and a test button to helpverify operation. Pushing the test buttoncauses the drain port to click open. Ifeither indicator fails to turn on at theproper time, refer to the maintenancesection of this manual. Drain valveoperation is controlled by an electronictimer. The drain opening can be setfrom 0.5 sec to 10 sec. The drain cyclecan be set from 0.5 min to 45 min.

Electronic Drain Valve AdjustmentTo minimize air losses, the drain valvetimer should be adjusted to open thedrain port just long enough to

discharge accumulated condensate. Setthe timer so that only air discharges atthe end of the open period.

Recommended Drain Settings

START-UP/OPERATIONFollow the procedure below to startyour dryer. Failure to follow theprescribed start-up procedure willinvalidate the warranty. If problemsarise during start-up, call yourdistributor.

Refer to SerialNumber Tag for dryer operatingcapacity. Do not exceedrecommended capacity

Drain connections must be made beforethe dryer can be operated. The dryersare fully automatic and require noauxiliary controls.

115V, 60 HzSingle Phase

Thermal & Current(auto reset)

TimeModel Open Closed)scfm (sec.) (Min.)

15 2 15

NOTE: If liquid discharges as the port isclosing, set the timer for a shorter cycleor a longer opening.

(model 15 only)

MODEL Rated capacity of@60 Hz

3YA49 10

3YA50 15

TABLE 1Rated capacity and pressure drop @ 100psiG inlet pressure, 100°F inlet temper-ature, and 100°F ambient temperature.

OUTLET DEWPOINT

DEW POINTTEMPERATURE MULTIPLIER°F °C

38 3 1.040 4 1.145 7 1.250 10 1.3

COOLING MEDIUM

AMBIENTTEMPERATURE MULTIPLIER°F °C

80 27 1.1290 32 1.06

100 38 1.00110 43 0.94

3YA49 and 3YA50Speedaire by Dayton Operating Instructions and Parts Manual

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1. Connect inlet and outlet lines to thedryer. Reference dryer indentationsand instruction tag for appropriateinlet and outlet connections.

2. Route drain connections to acondensate separator or approvedcollection point.

3. Turn the on/off switch to on. Doublecheck connections.

4. After the dryer has been running for30 minutes:

a. Check that on/off lighted switch isglowing. If light is not glowing,unplug unit and refer to Field ServiceGuide for additional information orcall your local distributor.

b. Confirm that condensate isdischarging from the drain. This canonly be done when there is air flowthrough the dryer.

Reference SerialNumber Tag for appropriate powerrequirement/connection rating.Make other dryer connections priorto connecting power source.

The dryer is designed to runcontinuously. Let the dryer run evenwhen the demand for compressed air isinterrupted; the dryer will not freeze up.

Operating Check Points1. Power light is on, light is illuminated2. Condensate is discharging properly

SHUTDOWNWhen the dryer must be shutdown formaintenance or other reasons, use thefollowing procedure.1.Turn the power on/off switch to off. 2.Disconnect the main power supply.

If mechanical repairs are to be made orservice is performed, vent the internalpressure of the dryer to atmosphericpressure. Restart the dryer according tothe start-up instructions.

Disconnect powersupply and depressurize dryer beforeservicing. Dismantling or working onany component of the compressed airsystem under pressure may causeequipment failure and serious personalinjury.

SIZINGDetermining dryer capacity at actualoperating conditions.

To determine the maximum inlet flowcapacity of a dryer at variousoperating conditions, multiply therated capacity from Table 1 by themultipliers shown in Table 2.

EXAMPLE:How many SCFM can an air-cooled 10SCFM dryer handle when compressedair to be dried is at 80 psiG and 90°F;ambient air temperature is 80°F; and a38°F dew point temperature isdesired?

Answer: 10 x 1.17 x 1.12 x 1.0 = 13.1scfm.

INLET COMPRESSED AIR CONDITIONSINLET INLET TEMPERATURES

PRESSURES 90°F 100°F 110°F 120°F psiG kgf/cm2 (32°C) (38°C) (43°C) (49°C)

50 3.5 1.05 0.84 0.69 0.56

80 5.6 1.17 0.95 0.79 0.66

100 7.0 1.23 1.00 0.82 0.70

125 8.8 1.31 1.07 0.91 0.74

150 10.5 1.37 1.13 0.95 0.80

175 12.3 1.42 1.18 0.99 0.84

200 14.0 1.47 1.22 1.03 0.89

250 17.6 1.49 1.24 1.05 0.91

TABLE 2Air capacity correction factors (multipliers)


Refrigeration System Data

Models 3YA49 and 3YA50

Inches

In/OutModel A B C D E F G H I J K L M N O W Connect.

3YA49 10.3 2.0 2.1 10.9 2.5 1.7 2.1 15.0 1.54 2.5 5.7 12.6 2.0 .25 13.0 12.6 3/8"3YA50 12.3 2.1 2.0 10.9 2.5 1.7 2.1 15.0 1.54 2.5 5.7 12.6 2.0 .25 13.0 12.6 O.D. Tube

Dimensions


Models 3YA49 3YA50

Compressor Type Hermetic - Resistance Start, Induction Run - Non-CyclingBTU/HR - Refrigeration Only @ 35°F (2°C) 476 1034

Evaporator & 100°F (38°C) Ambient

Refrigerant Type R-134a R-134a

Refrigerant Charge Refer to serial number tag

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Model - 3YA49

Model - 3YA50

Troubleshooting Chart



Symptom Possible Cause(s) Corrective Action

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WATER DOWNSTREAM OF DRYERNo discharge from separator draintrap

Dryer inlet air temperature toohigh

Refrigerant compressor stopped

HIGH PRESSURE DROPLow outlet pressure

Failure of drain trap

Aftercooler malfunction

1. Leak in refrigerant system

2. Compressor overheated

3. Compressor burned out

4. Inlet air temperature too high

5. Excessive airflow

6. Condenser fouled or clogged

7. High ambient temperature

8. Improper adjustment of Expansion Valve

1. Dryer undersized (may cause waterdownstream of dryer)

2. Blocked separator

3. Dryer icing up

Dismantle & clean strainer, repair orreplace solenoid valve or floatmechanism.

Check aftercooler dischargetemperature and reduce to dryerdesign condition (122°F max)

1. Consult local distributor

2. Turn dryer off, wait 30 minutes; turn dryer on. (Motor thermostat self-starting)


4. Reduce aftercooler discharge temperature to design conditions

5. Check airflow & system capacity.Reduce airflow or resize and replacesystem

6. Clean or replace condenser

7. Ventilate area

8. Consult Factory

1. Check airflow and dryer capacity.Reduce airflow or resize and replacedryer

2. Dismantle & clean or replaceseparator (10 scfm model only)



Address parts correspondence to:Please provide following information: Grainger Parts - Model number P.O. Box 3074- Serial number (if any) 1657 Shermer Road- Part description and number as shown in parts list Northbrook, IL 60065-3074 U.S.A.

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MaintenanceThe dryers require little maintenancefor satisfactory operation. Good dryerperformance can be expected if thefollowing routine maintenance stepsare taken.

Disconnect powersupply and depressurize dryer beforeperforming any maintenance.

GeneralFor continued good performance ofyour refrigerated dryer, all refrigerationsystem maintenance should beperformed by a competent refrigerationmechanic.

NOTE: Before corrective maintenance isdone during the warranty period, callyour local distributor and proceedaccording to instructions. Refer to thewarranty for limits of your coverage.

Daily MaintenanceCheck the separator for condensatedischarge. If no discharge is evident,depressurize, dismantle and performthe following:1. Automatic Float Drain - Clean

separator housing with mild soapand water. Discard drain and replace.

2. Electric Drain - Clean strainer and/orclean/replace solenoid valve.

Monthly MaintenanceInspect the condenser coils. Removeaccumulated dust and dirt with a softbrush or with air from an OSHAapproved compressed air nozzle thatlimits the discharge pressure to 30 psiG.

Electronic Drain Valve Disassembly and Servicing

Do not disassembledrain valve timer or attempt to repairelectrical parts. Replace timer ifdefective.

The drain valve discharges condensatethrough a full-port drain opening. Thevalve body may need to be cleanedunder conditions of gross particulatecontamination.

To disassemble the drain valve body forcleaning and other maintenance:1. Turn power switch off.2. Disconnect main power supply to

dryer.3. Depressurize unit4. Lock out and tag power supply in

accordance with OSHA requirements.

If power supply is notdisconnected and unit is notdepressurized before disassembly,serious personal injury and valvedamage may result.

5. Remove screw and washer from frontof the drain valve.

6. Remove the power supply connectorand gasket (with the timer assemblyif attached) from the solenoid coilhousing. Do not damage or lose thegasket.

7. Remove coil fixing nut and springwasher from top ofsolenoid coilhousing.

8. Lift solenoid coil housing off solenoidcore in valve body.

9. Unscrew solenoid core from valvebody.

Once the drain valve is disassembled,the following maintenance can beperformed.1. Inspect internal parts of valve body;

clean or replace as required.NOTE: Replace solenoid valve if

component damage is observed2. Remove debris from valve body.3. Wipe solenoid core components with

a clean cloth or blow out debris withcompressed air from an OSHA-approved air nozzle that limits itsdischarge pressure to 30 psiG.

4. Check that the plunger assembly isclean and moves freely in housing.

5. If timer is attached to valve body,check electrical continuity across timerassembly.

To reassemble the drain valve, reversethe sequence of the preceding steps.After the drain valve is reassembled,connect the main power supply to thedryer. When the dryer is returned toservice, check the drain valve for air orcondensate leaks; tighten connectionsas required to correct leaks. Check thedrain cycle; adjust the timer accordingto the procedure in the drain valveadjustment section.

Returns to ManufacturerIf the dryer or a component of thedryer must be returned to themanufacturer, first call your localdistributor for a return authorizationnumber and shipping address. Yourdistributor will inform you whether thedryer or only a component must bereturned. Mark the package with thereturn authorization number and shipfreight prepaid as directed by your localdistributor.

Parts List

Item 5-10 15On/Off Switch 3041494 3041494Float Drain Kit 3090900 N/ATimer Drain N/A 3044463

For Repair Parts, call 1-800-323-062024 hours a day – 365 days a year

Manufactured for Dayton Electric Mfg. Co.Niles, Illinois 60714 U.S.A.

3YA49 and 3YA50

Speedaire® by Dayton RefrigeratedCompressed Air Dryers


LIMITED WARRANTY

DAYTON ONE-YEAR LIMITED WARRANTY. Speedaire by Dayton refrigerated compressed air dryers, Models covered in this manual, are warranted by Dayton Electric Mfg. Co. (Dayton) to the original user against defects in workmanship or materials under normal use for one year after date of purchase. Any part which is determined to be defective in material or workmanship and returned to an authorized service location, as Dayton designates, shipping costs prepaid, will be, as the exclusive remedy, repaired or replaced at Dayton’s option. For limited warranty claim procedures, see PROMPT DISPOSITION below. This limited warranty gives purchasers specific legal rights which vary from jurisdiction to jurisdiction.

LIMITATION OF LIABILITY. To the extent allowable under applicable law, Dayton’s liability for consequential and incidentaldamages is expressly disclaimed. Dayton’s liability in all events is limited to, and shall not exceed, the purchase price paid.

WARRANTY DISCLAIMER. Dayton has made a diligent effort to provide product information and illustrate the products inthis literature accurately; however, such information and illustrations are for the sole purpose of identification, and do notexpress or imply a warranty that the products are MERCHANTABLE, or FIT FOR A PARTICULAR PURPOSE, or that the productswill necessarily conform to the illustrations or descriptions. Except as provided below, no warranty or affirmation of fact,expressed or implied, other than as stated in “LIMITED WARRANTY” above is made or authorized by Dayton.

PRODUCT SUITABILITY. Many jurisdictions have codes and regulations governing sales, construction, installation, and/or useof products for certain purposes; which may vary from those in neighboring areas. While Dayton attempts to assure that itsproducts comply with such codes, it cannot guarantee compliance, and cannot be responsible for how the product is installedor used. Before purchase and use of a product, review the product applications, and all applicable national and local codesand regulations, and be sure that the product, installation, and use will comply with them.

Certain aspects of disclaimers are not applicable to consumer products; e.g., (a) some jurisdictions do not allow the exclusionor limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you; (b) also,some jurisdictions do not allow limitations on how long an implied warranty lasts, consequently the above limitation maynot apply to you; and (c) by law, during the period of the Limited Warranty, any implied warranties of merchantability orfitness for a particular purpose applicable to consumer products purchased by consumers, may not be excluded or otherwisedisclaimed.

PROMPT DISPOSITION. Dayton will make a good faith effort for prompt correction or other adjustment with respect to anyproduct which proves to be defective within limited warranty. For any product believed to be defective within limitedwarranty, first write or call dealer from whom product was purchased. Dealer will give additional directions. If unable toresolve satisfactorily, write to Dayton at address below, giving dealer’s name, address, date and number of dealer’s invoice,and describing the nature of the defect. Title and risk of loss pass to buyer on delivery to common carrier. If product wasdamaged in transit to you, file claim with carrier.

Manufactured for Dayton Electric Mfg. Co., 5959 W. Howard St., Niles, IL 60714 U.S.A.

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speedaire by dayton refrigerated compressed air dryers · 3.if servicing the dryer without...

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