York K3EU180A50 User's Manual
Contents
1. Nominal Cooling Capacity Additional information for the accessories on this equipment is available in the following instructions 180 180Mbh 52 7kW e Electric Heater 550 13 N10 1V Refrigerant Line Connections e Supply Air Plenum 550 13 N10 2V A Cooling Only e Return Air Grille 550 13 N10 3V Voltage Code e Base 550 13 N10 4V 50 380 415 3 50 e Hot Water amp Steam Coil 550 13 N10 7V Suspension Mounting 550 13 N7 1 Renewal Parts CAUTION eis THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE WITH e Refer to Parts Manual for complete listing of replacement THE ENCLOSED INSTALLATION INSTRUCTIONS AND ANY APPLICABLE parts on this equipment LOCAL STATE AND NATIONAL CODES INCLUDING BUT NOT LIMITED TO BUILDING ELECTRICAL AND MECHANICAL CODES All forms may be ordered from WARNING INCORRECT INSTALLATION MAY CREATE A CONDITION WHERE THE Standard Register 2101 West Tecumsen Road OPERATION OF THE PRODUCT COULD CAUSE PERSONAL INJURY Norman OK 73069 OR PROPERTY DAMAGE Installer should pay particular attention to the words NOTE CAU TION and WARNING Notes are intended to clarify or make the installation easier Cautions are given to prevent equipment dam age Warnings are given to alert installer that personal injury and or equipment damage may result if installation procedure is not 035 12124 000 Rev A 0501 INSTALLATION LIMITATIONS These2. 4800 CFM 5400 CFM 6000 CFM 6600 CFM AIRFLOW OUTPUT INPUT ESP OUTPUT INPUT ESP OUTPUT INPUT ESP OUTPUT INPUT ESP OUTPUT INPUT BHP BHP WG BHP kW BHP BHP 0 46 1 44 1 68 0 11 1 96 1 80 0 55 0 84 1 26 1 54 1 83 2 38 1 79 2 12 2 70 1 70 2 95 3 30 SUPPLY AIR BLOWER PERFORMANCE m s 0 22 0 54 1 00 2 08 2 43 3 03 1 90 2 22 2 74 2 41 2 77 3 37 BLOWER SPEED RPM AIRFLOW OUTPUT kW INPUT ESP OUTPUT kW INPUT ESP OUTPUT kW INPUT ESP OUTPUT kW INPUT ESP OUTPUT kW 600 1 56 3 625 1 64 700 1 94 800 2 47 900 2 99 1 Unit resistance is based on a wet evaporator coil and clean filters Available static pressure in IWG Pa to overcome the resistance of the duct system and any accessories added to the unit Refer to Table 6 for the resistance of these accessories and to Table 7 for additional motor and drive data NOTE Motors can be selected to operate into the service factor because they are located in the moving air stream upstream of any heating device LEGEND RPM range for standard factory mounted drive components TABLE 6 ACCESSORY STATIC RESISTANCE IWG ACCESSORY EXTER
3. SUNLINE SPLIT SYSTEM EVAPORATOR BLOWER AIR COOLED Supersedes 550 39 N5Y1 894 ud YORK INSTALLATION INSTRUCTION 035 12124 000 Rev A 0501 MODEL K3EU180A50 WORLD 50 HZ GENERAL INSPECTION This completely assembled blower unit is manufactured under As soon as a unit is received it should be inspected for possible ISO 9002 Quality System Certification and includes a well damage during transit If damage is evident the extent of the insulated cabinet a DX cooling coil with copper tubes and alu damage should be noted on the carrier s delivery receipt A minum fins an expansion valve a distributor throwaway fil separate request for inspection by the carrier s agent should ters a centrifugal blower a blower motor a blower motor be made in writing See Local Distributor for additional infor contactor an adjustable belt drive and a small holding charge mation NOMENCLATURE of Refrigerant 22 K 3 EU 180 A50 The unit is shipped in the vertical position with a vertical air dis Product Category charge The blower section can be repositioned as shown in Fig ure1 for horizontal applications K Split System Evaporator Blower Product Generation REFERENCE 1 2 3 Design Level This instruction covers the installation of the evaporator blower Product Identifier unit For information on the installation and operation of the EU Evaporator Blower Unit matching condensing unit refer to Form 035 17263 000 p
4. SUCTION CONNECTION COIL SECTION 19 1591 62 5 8 79 ore g TIM aN 31 7 1 1 4 KNOCKOUT FOR 22 2 7 8 O D DRAIN CONNECTION Must be trapped 803 FILTER ACCESS PANEL Fillers can be removed through either side of the unit Refer to INSTALLING REFRIGERANT MAINS when piping through the opposite side of the unit All dimensions are in millimeters and inches They are sub ject to change without notice Certified dimensions will be FIG 7 UNIT DIMENSIONS AND CLEARANCES provided upon request ACCESSORIES ELECTRIC HEATER Add 15 381mm to Unit Height when using 10 16 26 or 36kW Heater SUPPLY AIR PLENUM Add 27 686mm to Unit Height when used BASE Add 24 610mm to Unit Height when used MINIMUM CLEARANCES in mm Side with RETURN AIR opening 24 610 Side with SUPPLY AIR opening 24 610 Side with PIPING CONNECTIONS 61 15492 Side opposite PIPING CONNECTIONS 26 660 Bottom 4 NOTES 1 Overall dimension of the unit will vary if an electric heater a supply air plenum or a base is used 2 This dimension is required for removal of the DX coil Only 26 660mm is required for normal serv icing 3 If the DX coil has to be removed this dimension is required to loosen screws that secure the coil to the unit frame This dimension will also be required for blower motor access if the piping connections are made on the opposite side of the unit 4 Allow enough cleara
5. to prevent slings from crushing the unit panels and frame Before rigging any unit determine its weight from Table 1 Bef ore rigging a unit for horizontal installation make sure that its weight will be distributed equally Table 1 PHYSICAL DATA Rows Deep 4 Rows High 26 Finned Length in mm 54 5 1384 Evaporator Coil i Fin Inch 13 Tube O D in mm 3 8 9 6 Face Area Ft m 12 4 1 15 Centrifugal i i inches 18x18 1 Wheel Dia x Width Blower mm 457 x 457 inches 20 x 20 x1 Filters Size mm 508 x 508 6 Req d x 25 Face Area Ft 2 m 16 7 1 5 Operating Charge Refrigerant 22 Lbs Kg 5 5 2 5 Shippin 480 218 Weight Lbs Kg PR Operating 440 200 10 kW 63 28 5 16 kW 66 29 9 Electric Heaters 26 kW 71 32 2 36 kW 74 33 5 Accessory Supply Air Plenum 144 65 Weights Lbs Kg Base 65 29 Return Air Grille 19 9 Horizontal Suspension 68 31 Steam Coil 149 68 Hot Water Coil 135 61 Refer to data in Table 7 for complete motor specifications Filters are throwaway type Two inch 50mm filters may be used if required by removing the 1 25mm filter retaining angles provided in the filter rack TABLE 2 UNIT APPLICATION DATA Voltage Power Variation CFM m3s Supply Supply Air Range Entering Air Temperature F C Cooling db wb Heating db 380 415 3 50 Utilization Range A in accordance wi
6. units must be installed in accordance with applicable na tional local and municipal safety codes If components are to be added to a unit to meet local codes they are to be installed at the dealer s and or the customer s ex pense Refer to Table 2 for Unit Application Data LOCATION This blower unit is not designed for outdoor installation It must be located within the building structure either inside or outside the conditioned space The unit should be located as close to the condensing unit as practical and positioned to minimize bends in the refrigerant piping Units being installed vertically or horizontally can be set directly on a floor or platform or they can be supported by metal or wooden beams Units being installed horizontally can also be suspended from above Refer to the suspension accessory instruction installa tion procedures CLEARANCES The clearances listed on the unit dimension drawing Figure 7 are required for the proper service and operation of the unit RIGGING AND HANDLING Be careful when moving the unit Do not remove any packaging until the unit is near its final location The packaging consists of a bottom wooden skid that can be lifted with a fork truck from any direction a clear heavy mil bag that covers the entire unit and strapping that secures the clear bag to the bottom of the skid These units can be rigged with slings under the bottom skid CAUTION Spreader bars should be used
7. NAL STATIC PRESSURE DROP RESISTANCE IWG pA BLOWER CFMim s 305 p63 283 att 340 10kw 0 04 10 0 05 12 0 06 15 0 08 20 0 10 25 Electric 16kw 0 07 18 0 09 21 0 11 27 0 14 35 0 17 42 Heat 26kW 0 13 32 0 16 40 0 20 50 0 24 60 0 29 72 36kW 0 20 50 0 24 60 0 29 72 0 35 87 0 42 106 Supply Air Plenum 0 03 8 0 04 10 0 05 12 0 06 15 0 07 18 Return Air Grille 0 04 10 0 05 12 0 06 15 0 07 18 0 08 20 Hot Water Coil 0 18 45 0 22 55 0 26 64 0 30 74 0 34 84 Steam Coil 0 15 37 0 18 45 0 22 55 0 26 64 0 30 74 Add these pressures to the ESP values in the respective blower performance table Exceeds the output limitation of the standard factory mounted blower motor Unitary Products Group 035 12124 000 Rev A 0501 UNIT 43 6 1 23 32 KNOCKOUT Used only with Electric Heat Accessory 22 2 7 8 KNOCKOUT FOR CONTROL WIRING 22 2 7 8 KNOCKOUT FOR 149 POWER WIRING DAN 57 8 64 51 2 218 BLOWER MOTOR AND DRIVE ACCESS PANEL Always nearest wiring connection side of unit Located on opposite side ONLY when the biower section has been rotated 180 degrees from position shown BLOWER SECTION 31 7 1 1 4 KNOCKOUT FOR 15 8 5 8 O D LIQUID CONNECTION ALTEANATE 68 6 2 5 8 KNOCKOUT p 254 702 C 10 _ 66 6 2 5 8 KNOCKOUT FOR 41 3 1 5 8 O D
8. blower motor HP the setting turns open for the supply air motor pulley can be determined from Table 3 TABLE 3 SUPPLY AIR BLOWER MOTOR PULLEY ADJUSTMENT BLOWER DRIVE RANGE RPM TURNS OPEN 615 800 615 652 689 726 763 0 800 Pulleys can be adjusted in half turn increments NUAN Each motor pulley has 1 A threaded barrel with two flats or notched recesses 180 degrees apart 2 A movable flange with one set screw After the movable flange has been rotated to the proper number of turns open the set screw should be tightened against the flat on the barrel to lock the movable flange in place If the pulley includes a locking collar the locking collar must be loosened to adjust the setting of the movable flange Note the following 1 The supply airflow must be within the limitations shown in Table 2 2 All pulleys can be adjusted in half turn increments 3 The tension on the belt should be adjusted for a deflection of 3 5mm per foot 305mm of belt span with an applied force of approximately 3 Ibs 1 4kg This adjustment is made by moving the blower motor mounting plate Refer to Figure 4 Turning the adjustment bolt B moves the motor mounting plate up or down Note Never loosen the two nuts C Four hex nuts A have to be loosed to move the mounting plate and retightened after the mounting plate has been moved to the proper position Unitary Products Group 4 All pull
9. bove or below the specified valve the supply air motor pulley may have to be readjusted After one hour of TABLE 4 ELECTRICAL DATA Blower Motor HP kKW Power Supply FLA 035 12124 000 Rev A 0501 operation check the belt and pulleys for tightness and align ment WARNING Failure to properly adjust the total system air quan tity can result in extensive blower damage After readings have been obtained remove the tubes and seal up the drilled holes in the side panel with 5 8mm dia dot ww COIL SECTION FIG 5 HOLE LOCATIONS TO DETERMINE PRESSURE DROP READINGS ACROSS THE DRY EVAPORATOR plugs P N 029 13880 available through normal parts ordering procedure NOTE SHUT DOWN THE REFRIGERANT SYSTEM BEF ORE TAKING ANY TEST MEASUREMENTS TO AS SURE A DRY EVAPORATOR COIL m gt SUPPLY AIR 23 26 28 34 34 Pa PRESSURE DROP WG PRESSURE DROP 4800 a 6000 66007200 NOMINAL CFM SUPPLY AIR Across A Dry Indoor Coil FIG 6 PRESSURE DROP VS SUPPLY AIRFLOW Maximum Wire Length Ft m Maximum Bas Fuse Size Amps 3 2 2 380 415 3 50 5 2 Dual element time delay fuses 37 0 10 400 122 Based on three 60 C 14 AWG insulated copper conductors in steel conduit and a 3 voltage drop Unitary Products Group 035 12124 000 Rev A 0501 TABLE 5 BLOWER PERFORMANCE SUPPLY AIR BLOWER PERFORMANCE CFM BLOWER SPEED RPM 600 625 700 800 900
10. d with no less the 1 12mm ARMAFLEX or equivalent If it is desirable to tape or wire the liquid and suction lines to gether for support purposes they must be completely insu lated from each other INSTALLING REFRIGERANT MAINS The units are evacuated and dehydrated at the factory and shipped with a holding charge of Refrigerant 22 The suction and liquid connections are sealed with copper disks WARNING Provisions for recovering refrigerant releases must be available during all phases of installation leak testing and charging Do NOT release refrig erant into the atmosphere A Schrader valve is pro vided on the coil header for recovering refrigerant holding charge If the unit has already lost its holding charge it should be leak tested and the necessary repairs should be made If the unit has maintained its holding charge you can assume that it has no leaks and proceed with the installation Make sure the refrigerant in the lines has been recovered then drill a small hole through the discs to prevent any inter nal pressure from blowing them off and to allow the flow of dry nitrogen through the connections when unbrazing the closures 035 12124 000 Rev A 0501 NOTE To minimize the possibility of system failure due to dirt and moisture a filter drier must be installed in each liq uid line as close to the evaporator as possible Filter driers are not supplied with the evaporator blowers They are supplied with the
11. e blow free return application is practical SUPPLY 489 AIR nET 1 25 DUCT FLANGE BLOWER HEATER ELEMENT CHAMBER ACCESS PANEL FIG 2 ELECTRIC HEATER ACCESSORY Unitary Products Group 035 12124 000 Rev A 0501 FILTERS HORIZONTAL POSITION r A L S ALTERNATE AIR DISCHARGE ARRANGEMENTS BLOWER MOTOR LOCATION NOTE Certain Blower positions are not recommended because the blower motor should not be mounted upside down REFRIGERANT MAINS Many service problems can be avoided by taking adequate pre cautions to provide an internally clean and dry system and by us ing procedures and materials that conform with established standards Hard drawn copper tubing should be used where no apprecia ble amount of bending around pipes or other obstructions in necessary Use long radius ells wherever possible If soft cop per is used care should be taken to avoid sharp bends which may cause a restriction Pack fiber glass insulation and a sealing material such as Per magum around refrigerant lines where they penetrate a wall to reduce vibration and to retain some flexibility Support all refrigerant lines at minimum intervals with suitable hangers brackets or clamps Braze all copper to copper joints witH Sil Fos 5 or equivalent brazing material Do not use soft solder Never braze or solder liquid and suction lines together The complete suction line should be insulate
12. eys are factory aligned 5 All supply air motor pulleys are factory set at two turns open After the supply air blower motor is operating adjust the resis tances in both the supply and the return duct systems to bal ance the air distribution throughout the conditioned space The job specifications may require that this balancing be done by C DO NOT LOOSEN MOTOR MOUNT FIG 4 TYPICAL MOTOR MOUNTING ASSEMBLY someone other than the equipment installer To check the supply air airflow after the the initial balancing has been completed 1 Drill two holes 54 8mm dia in the side panel as shown in Figure 5 2 Insert at least 8 200mm of 4 6 3mm O D tubing into each of these holes for sufficient penetration into the air flow on both sides of the evaporator coil NOTE The tubes must be inserted and held in a position per pendicular to the air flow so that velocity pressure will not affect the static pressure reading 3 Using an inclined manometer determine the pressure drop across a dry evaporator coil Since the moisture on an evaporator coil may vary greatly measuring the pressure drop across a wet coil under field conditions would be inac curate To assure a dry coil the refrigerant system should be de energized while the test is being run 4 Knowing the pressure drop across adry coil the actual air flow through the unit can be determined from the curve in Figure 6 If the airflow is a
13. matching condensing sec tions The temperature required to make or break a brazed joint is sufficiently high to cause oxidation of the copper unless an inert atmosphere is provide CAUTION Dry nitrogen should flow through a brazed joint at all times when heat is being applied and until the joint has cooled The liquid suction and drain connections inside the unit must be piped to the outside Refer to Unit Dimensions for loca tions of the access openings in the unit panel Protective grommets are supplied by the factory for field placement into these access openings The blower units are shipped with the coil section side pan els suitable for right hand piping connections when viewed from the return air side of the unit The refrigerant piping and the condensate drain connection may be routed through either side of the unit If left hand piping is required the two panels on the right side of the coil section can be interchanged with the single panel on the left hand side of the coil section When left hand piping connections are installed the suction line must be insulated to prevent moisture from condensing and being carried into the blower section EXPANSION VALVE BULB The expansion valve bulb must be fastened in a 4 o clock po sition to the suction line outside the cabinet after the piping connections have been made Use the clamps supplied with the valve DRAIN CONNECTION The drain line MUST be trapped because
14. nce to trap the condensate drain line Unitary Products Group 7 TABLE 7 BLOWER MOTOR AND DRIVE DATA Adjustable Motor Pulley Fixed Blower Pulley MOTOR SPECIFICATIONS Pitch Dia In mm Pitch Dia RPM In mm In mm 615 800 24748188 4 222 8 0 203 1 25 a Pitch Lg 1450 RPM In mm Designation In mm 380 415 3 50 55 3 1405 Solid base 56 Frame eInherently protected Permanently lubricated ball bearings POWER AND CONTROL WIRING Install electrical wiring in accordance with appli cable national local and municipal codes The unit should be grounded in accordance with R these codes CONTACTO GROUND SCREW Route the power wires into the unit through one of the 22 2mm dia knockouts in the panel with the supply air opening and connect them to the terminals on blower motor contactor 10M Route the control wires into the unit through the other 22 2mm dia knockout and connect them to the terminals on block 4TB Refer to the unit drawing in Figure 7 for the locations of these knockouts 24 VOLT THERMOSTAT If the unit includes an electric heat accessory AT R089124 route the power wires into heater control box in stead of the unit Refer to the electric heat in structions for additional installation information Refer to Table 4 to size the disconnect switch the power wiring and the fuses Refer to Figure 8 for typical field wi
15. ring NOTE Three phase motor rotation may be incor rect when the unit is first started up Re verse phase leads L1 and L2 at contactor to obtain the correct rotation TERMINALS ON SUPPLY AIR BLOWER MOTOR TERMINALS ON 1 STAGE COOLING 3 PHASE LINE VOLTAGE POWER SUPPLY POWER WIRING DISCONNECT SWITCH AND FUSING TO BE SUPPLIED BY FIELD 10M NOTE USE COPPER CONDUCTORS ONLY 24 VOLT CONTROL WIRING TERMINALS ON BLOCK 3TB OF THE BLOWER UNIT WIRE IN ACCORDANCE WITH LOCAL AND NATIONAL ELECTRICAL CODES FIG 8 TYPICAL FIELD WIRING Cooling only MAINTENANCE FILTERS The filters must be replaced as often as necessary to assure good air flow and filtering action EVAPORATOR COIL Do not allow dirt to accumulate on the evaporator coil or other parts of the evaporator air circuit Clean as often as necessary to assure good system performance Use a brush vacuum cleaner attachment or other suitable means ad YORK Heating and Air Conditioning Subject to change without notice Printed in U S A Copyright by York International Corporation 5005 York Drive Unitary Products Group LUBRICATION The bearings for the blower shaft and the blower motors are permanently lubricated and should not re quire additional lubricant DRAIN PAN The drain pan should be inspected regularly to assure proper drainage BELTS Maintain belt tension to extend belt life Replace
16. th ARI Standard 110 Min Max Min Max Min Max Min 4800 2 26 7200 3 40 68 57 20 14 86 72 30 22 Unitary Products Group AIR OUT Std Arrg t BLOWER MOTOR LOCATION BLOWER mJ 7 U RETURN AIR SECTION DUCT FLANGE eee RETURN AIR EVAPORATOR coIL FILTERS VERTICAL POSITION FIG 1 VERTICAL AND HORIZONTAL APPLICATION VERTICAL HORIZONTAL INSTALLATION The unit is shipped for vertical installation with a vertical air dis charge as shown in Figure 1 but may be converted to other ar rangements per the following instructions 1 Remove the panels from the blower section 2 Remove the four Phillips machine bolts that hold the coil and blower sections together A bolt is located near each corner 3 Move the blower section to the proper location 4 Attach the blower section to the coil section with the ma chine bolts removed in Step 2 5 Before replacing the panel see Duct Connection and Drain Connection 6 Replace the panels DUCT CONNECTIONS All ducts should be designed and installed in accordance with applicable national and or local codes Ducts should be sized no smaller than the duct flanges on the unit or the accessory electric heater if used Refer to the unit dimensions Figure 7 and the heater detail Figure 2 for these sizes The field installed air plenum and return air grille accessories should be used in place of ductwork only when a fre
17. the coil is located on the negative side of the supply air blower It must also be protected from freezing temperatures A 22 2mm OD stub connection is provided within the cabinet on both ends of the condensate drain pan for either STUB CONNECTION DRAIN PAN ELL 3 76 2 50 EVAPORATOR COIL y Hi i Eat CLAMPS Factory Supplied FIG 3 RECOMMENDED DRAIN PIPING left hand or right hand piping connections Refer to Figure 3 for recommended drain piping The drain line is usually located on the same end of the coil section as the refrigerant connections The line should be in sulated where moisture drippage will be objectionable or cause damage to the area Seal the unused drain connec tion with a suitable mastic The 3 76mm dimension must equal or exceed the nega tive static pressure developed by the supply air blower If it does not condensate will not drain properly and may over flow the drain pan The trap must be at least 2 50mm deep to maintain a water seal under all operating conditions espe cially during blower start up SUPPLY AIR BLOWER ADJUSTMENT The RPM of the supply air blower will depend on the re quired airflow the unit accessories and the static resistances of both the supply and the return air duct systems With this information the RPM for the supply air blower can be deter mined from the blower performance in Table 5 Knowing the required blower RPM and the
18. when signs of failure begin to appear 035 12124 000 Rev A 0501 Supersedes 550 39 N5YI 894 Norman OK 73069
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