dh domnick hunter - Envirotronics

1 domnick hunterdhGBNLDFSUSVNODKHEESPOITI nstruction ManualHandleiding Bedienungsanleitung Manuel opratoire KyttopasBruksanvisning Instruksjonshndbok Brugsvejledning E Manual de instrucciones Manual de Instrues Manuale di istruzioniCOMPRESSED AIR DRYERSPERSLUCHTDROGERS DRUCKLUFTTROCKNERS CHEURS D AIR COMPRIM PAINEILMAKUIVAIMETTRYCKLUFTSTORKARE LUFTT RKERE FOR KOMPRIMERT LUFTTRYKLUFTT RREANL G HPANTHPE E IE MENOY AEPASECADORES DE AIRE COMPRIMIDO SECADORES DE AR COMPRIMIDOESSICCATORI PER ARIA COMPRESSAE nglish1 Nederlands15 Deutsch29 Fran ais43 Suomi57 Svenska71 Norsk85 Dansk99E x 113 Espa ol127 Portugu s141 Italiani1551 WARNING!Do not operate the dryer until the instructions in this manual have been read and understood byall personnel handling, installing or operating, personnel must employ safe engineering practices and observe allrelated regulations, health and safety procedures, and legal requirements for accidents that occur during the operation and maintenance of machinery are the result of failure toobserve basic safety rules and procedures.

2 Accidents can be avoided by recognising that any machineryis potentially huntercan not anticipate every possible circumstance which may represent a potential hazard. The WARNINGSin this manual cover the most known potential hazards, but by definition cannot be allinclusive. If the dryer user employs an operating procedure, item of equipment or a method of workingwhich is not specifically recommended by domnick hunterthe user must ensure that the dryer will notbe damaged or made a potential hazard to persons or : PowerRisk of Electric ShockAttentionPLEASE NOTE THAT YOUR WARRANTY MAY BE INVALIDATED IF THE EQUIPMENT HAS NOTBEEN INSTALLED, COMMISSIONED AND MAINTAINED BY domnick hunter OR A domnick hunterAPPROVED Start-up and Spare Troubleshooting133 INTRODUCTIONThe PNEUDRI MiDASrange of compressed air dryers are designed to removemoisture from compressed air by utilising state of the art technology to obtaindewpoints of -40 C PDP and by appropriate de-rating -70 C MiDASdryers have been designed to require minimal maintenance andcan be installed virtually PNEUDRI MiDASdryer consists of upper and lower head assemblies joinedtogether with an aluminium extrusion containing twin internal chambers.

3 The upperhead assembly contains inlet and outlet manifolds, pre-filter and autodrain. The lowerhead assembly contains two exhaust valves and a passive shuttle ball in each internal chamber is a combination desiccant / after-filter operation one chamber is on-line (drying) while the other is regenerating, usingthe Pressure Swing Adsorption (PSA) Swing Adsorption (PSA)A small percentage of dried air is taken from the dryer outlet flow and is used toregenerate the saturated chamber by expanding the dried air from line pressure toatmospheric pressure. During this process, the moisture is physically removed fromthe regenerating chamber and vented to atmosphere through the exhaust. INSTALLATION (refer to figure 1) ESSENTIAL INFORMATIONCare must be taken to ensure that the dryer is not subject to flows (even peaks) inexcess of the dryers rated capacity, dryers downstream of an air receiver haveincreased potential to be dryer can be installed free standing, secured to the floor via the fastening pointsprovided in the base or secured to a wall using optional control enclosure (A) must be at the bottom and the dryer must be installedvertical and inlet and two outlet connections are available at the top of the dryer to enableconnection from either left or right.

4 Unused connections (B) and (C) must be sealedwith the threaded plugs provided. Suitable rated pipe and connections must be usedfor the installation. All pipework must be secure and safely purge flow is factory set for 6 bar g (87 psi g) minimum operating the minimum pressure requirement be different, the purge flow must be resetby a domnick hunter engineer or a domnick hunter approved the dryer is electrically connected to a supply suitable for the unit. See wiringdiagram printed in Electrical FiltrationA micron pre-filter is contained within the upper head assembly. 1 micron after-filters are integral within desiccant cartridges screwed into inserts in the upper headassembly. Filters must be maintained by domnick hunter or a domnick hunterapproved By-pass Line (D)A by-pass line, 3/8" BSP or NPT * (D) ensures complete safety during maintenanceand enables a continuous supply of compressed air to be maintained if required.

5 Itshould be remembered that air bypassing the dryer is dirty untreated Valves (E, F, G)Isolation valves, 3/8" BSP or NPT * are recommended on the inlet (E), outlet (F) andbypass (G) lines at the positions indicated in Figure 1.* When ordering, the thread type must be TECHNICAL SPECIFICATIONO perating SpecificationParameterMinimumMaximumNomi nalInlet bar g (58 psi g) bar g (175 psi g) bar g (102 psi g)ParameterMinimumMaximumNom inalInlet C (35 F) 50 C (122 F)35 C (95 F)Electrical SpecificationDryer ModelVoltage SupplySupply NeedElectrical Approval50 Hz230 V1 phaseCE60 Hz115V1 phaseCSA/ULGeneral SpecificationInlet FlowrateDAS 13 m3/hrDAS 25 m3/hrDAS 38 m3/hrDAS 410 m3/hrDAS m3/hrDAS 615 m3/hrDAS 720 m3/hrOutlet Dewpoint-40 C (-40 F) Optional 70 C (-100 F)Environmental Protection IP65 (NEMA4)Noise Level <70 dB(A)Dryer WeightsDAS 111 lbsDAS 213 lbsDAS 316 lbsDAS 418 lbsDAS 520 lbsDAS 623 lbsDAS 728 lbsNote.

6 All flow rates referenced at 20 C (68 F) , 7 bar g (102 psi g) ELECTRICAL DETAILSOnly competent qualified electricians must work on dryer the rating plate for power supply isolator switches must be provided at a safe and accessible point near to dryer must be provided with a live, neutral and earth power to the dryer (via the mains cable gland *) at the fused terminal blockmounted on the small base plate located under the enclosure. Four screws retain thebase plate. A T500mA fuse is fitted as standard.*For CSA / NPT dryers, the cable gland is replaced by a conduit entry aperture. 230V, 50/60Hz115V, 50/60 HzBrownBlueLiveEarthNeutralT500mA230V, 50Hz115V, 60 Hzground7 KEY(A) Control Box(E) Inlet Valve(B) Optional Inlet(F) Outlet Valve(C) Optional Outlet(G) By-pass Valve(D) By-pass Line(H) Display INSTALLATION PROPOSALF igure 13/8 BSP or NPT!

7 HOrangeRedOrangeGreen8 Position 1 Dryers running below 7 Bar g (102psig)Position 2 Dryers running above7 Bar g (102psig) RUNNING THE DRYER WITH A MINIMUM PRESSURE ABOVE 7 BARIf the dryer is to be run with a minimum pressure of 7 Bar g (102psig) an alteration tothe timer board is carry out the alteration,ensure the electrical supply is isolated, lie the dryer on itsback, to gain access to the control base. Remove the large plate to gain access to thetimer board. Move electric jumper from Position 1 to Position 2, as ACCESSORIESR emote Alarm Display kitPart Number: DASRDKWall Mounting Bracket KitOption 1 Option 2 Part Number: DASMB1 Part Number: START-UP AND INTIAL STARTUPE nsure a suitable supply of compressed air between 4 bar g (58 psi g) and 12 bar g(175 psi g) pressure is available and check that the dryer cannot be overflowed.

8 Inlettemperature must be between C (35 F) to 50 C (122 F) at all NOTEE nsure all valves are opened and closed as follows: (Refer to figure 1) WITHOUT THE BY-PASS LINE (D)Close inlet (E) and outlet (F) air to the dryer by gradually turning the inlet valve (E) until fully dryer to fully pressurise, then gradually open the outlet valve (F).Switch on the electrical isolator, the yellow power on LED and the green correctoperation LED will illuminate and the dryer will commence cycling. The dryer is nowon USING THE BY-PASS LINE (D)With the inlet (E) and outlet (F) valves closed and the by-pass (G) valve open,introduce air to the dryer by gradually turning inlet valve (E) until fully the dryer to fully pressurise, then open the outlet valve (F) while simultaneouslyclosing the by-pass valve (G).

9 Switch on the electrical isolator, the yellow power on LED and the green correctoperation LED will illuminate and the dryer will commence cycling. The dryer is nowon NORMAL OPERATIONF ollowing the start-up procedure the operation of the dryer is fully automatic andrequires no further attention until shut yellow power on LED and the green correct operation LED should be illuminatedcontinuously.! *Power OnCorrect Operation*11 The dryer contains two desiccant chambers, while one chamber is drying thecompressed air (adsorption), the other chamber is simultaneously undergoingregeneration (desorption). At a predetermined time both exhaust valves close andrepressurisation begins. Every three minutes the chambers are reversed in function,this is the changeover point.

10 Changeover is characterised by an immediate venting ofcompressed air from the chamber entering dryer can be shut down at any point in its cycle and when restarted will enter anautomatic repressurisation stage. After repressurisation the cycle will commence atthe point at which it power is switched on, the dryer will enter an automatic repressurisation stage at thepoint at which it SHUT-DOWN PROCEDURETo Depressurize the DryerPrior to isolating the electrical supply close the outlet valve (F) while simultaneouslyopening the by-pass valve (G) if fitted. Close the inlet valve (E). The dryer will now beisolated from mains pressure. Cycle the dryer for a minimum of 3 minutes to ensurethe dryer vents and is completely depressurized. When the dryer is completelydepressurized, isolate the electrical by-pass valve (G) should only be opened if the dryer is undergoing MAINTENANCED aily Ensure the yellow power on LED and the green correct operation LED are Check dryer seals, fittings and pipe work for air leaks.