Manuale d’uso / di manutenzione del prodotto ECO R-22 del fabbricante York
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Packaged Roof top Air Conditioning Unit s 50 THROUGH 100 T ONS R-407C and R-22 400V AC/3PH/50Hz FORM 100.50-EG3 (802) 00566VIP TM Meet s ASHRAE 90.1 - 2001 Efficiency Requirement s ASHRAE 90.
YORK INTERNA TIONAL 2 Introduction The eco 2 packaged rooftop – Designed to meet the de- mands of the market for today and tomorrow . Better Economy .
FORM 100.50-EG3 (802) 3 YORK INTERNA TIONAL TABLE OF CONTENTS Introduction ............................................................. 2 Features and Benefit s ............................................ 4 Nomenclature .............................
YORK INTERNA TIONAL 4 Features and Benefits QUALITY ROOFT OP UNIT DESIGNED T O TODA Y’S ST ANDARDS Ecological and Economical Design • First packaged RTU that meet s ASHRAE 90.1-2001 with both R-22 and R-407C Refrigerants. • Cooling and Heating – Superior operating perfor- mance provides lower operating costs.
FORM 100.50-EG3 (802) 5 YORK INTERNA TIONAL Reliable Cooling and Heating T echnology • Reliable, efficient, trouble-free operation is the true measure of a packaged roof top’s value.
YORK INTERNA TIONAL 6 Features and Benefits (continued) • Fan Spring Isolators – One-inch spring isolation is used to prevent vibration transmission from the rooftop unit’ s supply fan to the building. T wo-inch spring isolation is also available.
FORM 100.50-EG3 (802) 7 YORK INTERNA TIONAL 1 2 3 4 5 6 7 8 9 10 1 1 12 13 14 15 16 BASE PRODUCT TYPE NOMINAL CAP ACITY APPLICA TION REFRIGERANT VOL T AGE DUCT LOCA TIONS DESIGN SPECIAL Y 0 5 0 B 45 B.
YORK INTERNA TIONAL 8 Application Data LOCA TION Of the many factors that can affect the acoustical char- acteristics of a rooftop inst allation, one of the most im- portant is the unit location. Ideally , the rooftop unit should be installed away from sound-sensitive areas, such as conference rooms, auditoriums and executive offices.
FORM 100.50-EG3 (802) 9 YORK INTERNA TIONAL For V A V applications, the YORK eco 2 unit uses a VFD to modulate fan speed and maintain a constant duct static pressure. VFDs of fer superior control over the operation of the unit at part load, and of fer the addi- tional benefits of quieter and more ef ficient operation when compared to IGV .
YORK INTERNA TIONAL 10 The curb should be located according to the location recommendations above, and properly sealed to pre- vent moisture and air leakage into and out of the duct system. Flexible collars should be used when connect- ing the duct work to prevent unit noise transmission and vibration into the building.
FORM 100.50-EG3 (802) 11 YORK INTERNA TIONAL 6. Required total and sensible capacities are 991 mbh and 681 mbh, respectively . The tot al cap acity is 82.6 tons, therefore a model YP AL085 is selected. Use the Cooling Performance Data in T able 9. Locate the table with the correct ambient air temperature.
YORK INTERNA TIONAL 12 Physical Data T ABLE 1 – PHYSICAL DA T A – MODELS 50-70 MODEL SIZE 050 055 060 065 070 GENERAL DA T A Length (cm) w/o Hood 874 874 874 874 1 140 Width (cm) w/o Hood 234 234 .
FORM 100.50-EG3 (802) 13 YORK INTERNA TIONAL MODEL SIZE 050 055 060 065 070 Evaporator Coil Size (Square Meters) 5 5 5 5 5 Number of Rows/Fins per cm 1 1 1 1 1 T ube Diameter (cm) /Surface 5/4 /enhanc.
YORK INTERNA TIONAL 14 Physical Data (continued) T ABLE 1 – PHYSICAL DA T A – MODELS 75-95 MODEL SIZE 075 080 085 090 095 GENERAL DA T A Length (cm) w/o Hood 1 140 1 140 1 140 1240 1240 Width (cm).
FORM 100.50-EG3 (802) 15 YORK INTERNA TIONAL MODEL SIZE 075 080 085 090 095 Evaporator Coil Size (Square Meters) 5 5 5 5 5 Number of Rows/Fins per cm 1 1 1 1 1 T ube Diameter (cm) /Surface 5/4 /enhanc.
YORK INTERNA TIONAL 16 Cooling Performance Data – 50 T on Model T ABLE 2 – COOLING PERFORMANCE DA T A* – 50 TON MODEL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 17 YORK INTERNA TIONAL T ABLE 2 – COOLING PERFORMANCE DA T A* – 50 TON MODEL (CONT’D) 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 18 T ABLE 3 – COOLING PERFORMANCE DA T A* – 55 TON MODEL Cooling Performance Data – 55 T on Model * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 19 YORK INTERNA TIONAL T ABLE 3 – COOLING PERFORMANCE DA T A* – 55 TON MODEL (CONT’D) 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 20 T ABLE 4 – COOLING PERFORMANCE DA T A* – 60 TON MODEL Cooling Performance Data – 60 T on Model 29.4°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 21 YORK INTERNA TIONAL T ABLE 4 – COOLING PERFORMANCE DA T A* – 60 TON MODEL (CONT’D) 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 22 T ABLE 5 – COOLING PERFORMANCE DA T A* – 65 TON MODEL Cooling Performance Data – 65 T on Model 29.4°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 23 YORK INTERNA TIONAL T ABLE 5 – COOLING PERFORMANCE DA T A* – 65 TON MODEL (CONT’D) 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 24 T ABLE 6 – COOLING PERFORMANCE DA T A* – 70 TON MODEL Cooling Performance Data – 70 T on Model 29.4°C AIR ON CONDENSER COIL 35°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity .
FORM 100.50-EG3 (802) 25 YORK INTERNA TIONAL T ABLE 6 – COOLING PERFORMANCE DA T A* – 70 TON MODEL (CONT’D) 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 26 T ABLE 7 – COOLING PERFORMANCE DA T A* – 75 TON MODEL Cooling Performance Data – 75 T on Model * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 27 YORK INTERNA TIONAL T ABLE 7 – COOLING PERFORMANCE DA T A* – 75 TON MODEL (CONT’D) 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 28 Cooling Performance Data – 80 T on Model T ABLE 8 – COOLING PERFORMANCE DA T A* – 80 TON MODEL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 29 YORK INTERNA TIONAL T ABLE 8 – COOLING PERFORMANCE DA T A* – 80 TON MODEL 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 30 Cooling Performance Data – 85 T on Model T ABLE 9 – COOLING PERFORMANCE DA T A* – 85 TON MODEL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 31 YORK INTERNA TIONAL T ABLE 9 – COOLING PERFORMANCE DA T A* – 85 TON MODEL 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 32 T ABLE 10 – COOLING PERFORMANCE DA T A* – 90 TON MODEL Cooling Performance Data – 90 T on Model * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 33 YORK INTERNA TIONAL T ABLE 10 – COOLING PERFORMANCE DA T A* – 90 TON MODEL (CONT’D) 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 34 T ABLE 1 1 – COOLING PERFORMANCE DA T A* – 95 TON MODEL Cooling Performance Data – 95 T on Model * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 35°C AIR ON CONDENSER COIL * Rated performance is at sea level.
FORM 100.50-EG3 (802) 35 YORK INTERNA TIONAL T ABLE 1 1 – COOLING PERFORMANCE DA T A* – 95 TON MODEL (CONT’D) 46.1°C AIR ON CONDENSER COIL * Rated performance is at sea level. Cooling capacities are gross cooling capacity . 40.5°C AIR ON CONDENSER COIL * Rated performance is at sea level.
YORK INTERNA TIONAL 36 Heating Performance Data – Gas/Electric Heat GAS HEA TING ELECTRIC HEA TING T ABLE 13 – ELECTRIC HEA T PERFORMANCE DA T A UNIT SIZE (kW) NOMINAL HEA T CAP ACITY AIR FLOW MIN.
FORM 100.50-EG3 (802) 37 YORK INTERNA TIONAL Supply Fan Data T ABLE 14 – 50 THROUGH 65 TON SUPPL Y F AN DA T A (CONT’D) TOT AL ST A TIC PRESSURE (Pascals of water column) m3/hr 871 995 1 120 1244 1369 STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM 16990 20388 23786 10.
YORK INTERNA TIONAL 38 Supply Fan Data (continued) T ABLE 15 – 70 THROUGH 85 TON SUPPL Y F AN DA T A TOT AL ST A TIC PRESSURE (Pascals of water column) m3/hr 245 373 498 622 747 STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM 27184 4.2 397 5.5 467 30582 5.
FORM 100.50-EG3 (802) 39 YORK INTERNA TIONAL T ABLE 16 – 90 THROUGH 95 TON SUPPL Y F AN DA T A (CONT’D) TOT AL ST A TIC PRESSURE (Pascals of water column) m3/hr 871 995 1 120 1244 1369 STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM 30582 15.4 739 17.
YORK INTERNA TIONAL 40 Component S tatic Pressure Drops T ABLE 17 – COMPONENT ST A TIC PRESSURE DROPS NOTES: * Includes 2" pleated filters. ** Power exhaust pressure drops are for sizing supply fan. EV APORA TOR RETURN AIR OPENING FIL TERS SIZE AIR FLOW COILS 50.
FORM 100.50-EG3 (802) 41 YORK INTERNA TIONAL FIL TERS ECONOMIZER ECONOMIZER RIGID FIL TER RACK, 30.5 cm 30.5 cm FRESH AIR MANUAL OR 0-100% POWERED NO MEDIA RIGID, 65%* RIGID, 95%* OPENINGS 2-POSITION MODULA TION EXHAUST 22.28 52.86 73.78 18.15 6.66 28.
YORK INTERNA TIONAL 42 Component S tatic Pressure Drops (continued) NOTES: * Includes 2" pleated filters. ** Power exhaust pressure drops are for sizing supply fan. T ABLE 17 – COMPONENT ST A TIC PRESSURE DROPS EV APORA TOR RETURN AIR OPENING FIL TERS SIZE AIR FLOW COILS 50.
FORM 100.50-EG3 (802) 43 YORK INTERNA TIONAL FIL TERS ECONOMIZER ECONOMIZER RIGID FIL TER RACK, 30.5 cm 30.5 cm FRESH AIR MANUAL OR 0-100% POWERED NO MEDIA RIGID, 65%* RIGID, 95%* OPENINGS 2-POSITION MODULA TION EXHAUST** 30.29 71.37 97.27 26.65 17.04 37.
YORK INTERNA TIONAL 44 T ABLE 18 – GAS HEA T PRESSURE DROPS SIZE (mbh) SIZE AIR FLOW 375 750 1125 m3/hr STD. AIR 16990 29.86 62.21 – 20388 37.33 74.65 – 23786 42.30 87.09 – 27184 49.77 99.54 – 50 29733 54.74 109.49 – 30582 54.74 1 1 1.98 – 33980 62.
FORM 100.50-EG3 (802) 45 YORK INTERNA TIONAL 00566VIP.
YORK INTERNA TIONAL 46 Electric Heat Pressure Drops SIZE (kW) 4 0 80 108 150 250 VOL T/PHASE/HZ 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 SIZE AIR FLOW m3/hr STD. AIR 16990 3.50 5.09 5.09 20388 5.04 7.34 7.34 23786 6.87 9.99 9.99 27184 8.97 13.04 13.
FORM 100.50-EG3 (802) 47 YORK INTERNA TIONAL T ABLE 19 – ELECTRIC HEA T PRESSURE DROPS (CONT’D) SIZE (kW) 4 0 80 108 150 250 VOL T/PHASE/HZ 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 SIZE AIR FLOW m3/hr STD. AIR 27184 10.95 10.95 21.22 30582 13.
YORK INTERNA TIONAL 48 TOT AL ST A TIC PRESSURE (Pascals of water column) m3/hr 31 1 373 435 478 STD. AIR kW RPM kW RPM kW RPM kW RPM 13592 2.6 810 3.0 873 3.4 933 3.9 992 20388 5.6 924 6.1 976 6.6 1025 7.2 1072 27184 1.4 1055 1 1.2 1 104 12.0 1 150 12.
FORM 100.50-EG3 (802) 49 YORK INTERNA TIONAL T ABLE 22 – 90 THROUGH 95 TON EXHAUST F AN DA T A (CONT’D) TOT AL ST A TIC PRESSURE (Pascals of water column) m3/hr 31 1 373 435 478 STD. AIR kW RPM kW RPM kW RPM kW RPM 23786 4.3 728 4.8 776 5.3 821 5.
YORK INTERNA TIONAL 50 Component S tatic Pressure Drops T ABLE 23 – COMPONENT ST A TIC PRESSURE DROPS (P ASCALS OF W A TER COLUMN) 2-POSITION OR VFD MODULA TING EXHAUST SIZE AIR FLOW POWERED EXHAUST (CONTROL DAMPER) m3/hr STD. AIR (BAROMETRIC DAMPER) 13592 4.
FORM 100.50-EG3 (802) 51 YORK INTERNA TIONAL T ABLE 23 – COMPONENT ST A TIC PRESSURE DROPS (P ASCALS OF W A TER COLUMN) (CONT’D) 2-POSITION OR VFD MODULA TING EXHAUST SIZE AIR FLOW POWERED EXHAUST (CONTROL DAMPER) m3/hr STD. AIR (BAROMETRIC DAMPER) 20388 24.
YORK INTERNA TIONAL 52 Electrical Data ELECTRICAL SER VICE SIZING In order to use the electrical service required for the cool- ing only eco 2 rooftop, use the appropriate calculations listed below from U.
FORM 100.50-EG3 (802) 53 YORK INTERNA TIONAL T ABLE 25 – SUPPL Y AND EXHAUST F AN MOTOR (ODP OR TEFC) T ABLE 27 – CONTROL TRANSFORMER T ABLE 26 – CONDENSER F AN MOT ORS / TOT AL T ABLE 28 – ELECTRIC HEA T NOMINAL VOL T AGE MOTOR 400/3/50 HP FLA 5 8.
YORK INTERNA TIONAL 54 Controls CONTROL SEQUENCES COMMON T O ALL UNITS GENERAL The control system for the YORK eco² Packaged Roof- top Unit is fully self-contained and based around an OptiLogic ™ rooftop unit controller .
FORM 100.50-EG3 (802) 55 YORK INTERNA TIONAL ELECTRIC HEA TING OPERA TION For units equipped with electric heaters, the unit can control up to six stages of electric heat which are st aged on based on heating demand calculates by the OptiLogic controller .
YORK INTERNA TIONAL 56 Controls (continued) through the Air Measurement S tation. The unit control- ler shall control the Outside Air damper to this flow rate as long as the unit is in the Occupied mode, and the economizer is not suitable for cooling.
FORM 100.50-EG3 (802) 57 YORK INTERNA TIONAL For these applications, the unit must be equipped with optional Low Ambient controls. For optional Low Ambi- ent operation, the OptiLogic ™ controller monitors the refrigeration system discharge pressure and controls the speed of the condenser fans.
YORK INTERNA TIONAL 58 Controls (continued) mine if conditions are suitable for economizing and modulate the outside air damper and/or stage up com- pressors as required to maintain the V A V High Supply Air T emperature Setpoint. This setpoint is user select- able at the OptiLogic ™ User Interface.
FORM 100.50-EG3 (802) 59 YORK INTERNA TIONAL S tage 1 (“Y1”) Call If Y1 is called and the unit is equipped with an economizer , the control will check to see if the Outside Air is suitable for economizing.
YORK INTERNA TIONAL 60 Power Wiring SINGLE-POINT POWER SUPPL Y WIRING FIG . 1 – SINGLE-POINT POWER SUPPL Y WIRING P ower S id e Fi e l d Pow e r S uppl y E a rth G roun d Line 3 Lin e 2 Lin e 1 Wirin g Terminal Blo ck C ontrol S id e 1L1 1L2 1 L 3 G ND Electrical / C ontrols Bo x TB1 NOTES: 1.
FORM 100.50-EG3 (802) 61 YORK INTERNA TIONAL SINGLE-POINT POWER SUPPL Y WIRING WITH NON-FUSED DISCONNECT FIG . 2 – SINGLE-POINT POWER SUPPL Y WIRING WITH NON-FUSED DISCONNECT Power S id e Fi e l d P.
YORK INTERNA TIONAL 62 DUAL-POINT POWER SUPPL Y WIRING FIG . 3 – DUAL-POINT POWER SUPPL Y WIRING NOTES: 1. All field wiring must be provided through a field-supplied fused disconnect switch to the unit terminals (or optional molded disconnect switch).
FORM 100.50-EG3 (802) 63 YORK INTERNA TIONAL * U se S hielded Wir e * Use Shielded Wir e * U se S hielded Wir e 3. Maximum p ower available from the 24 VAC 1. Wirin g shown indicates typical wirin g . Closed = Smoke Purge C losed = S hutdow n Open = Unoccupied Closed = Occupied O 1.
YORK INTERNA TIONAL 64 A L H B C D E F G J K R Y T S M N P U V BB AA CC DD W 3.175 FPT COUPLING DRAIN CONNECTION T OP VIEW LEFT SIDE VIEW FRONT REAR General Arrangement Drawing – 50-65 T on Models LD07880 BOTTOM SUPPL Y / BOTTOM RETURN FIG . 5 – GENERAL ARRANGEMENT DRA WING – 50-65 TON MODEL NOTES: 1.
FORM 100.50-EG3 (802) 65 YORK INTERNA TIONAL LD07881 SIDE SUPPL Y / FRONT RETURN FIG . 6 – GENERAL ARRANGEMENT DRA WING – 70-95 TON MODEL L H C D E F G J R Y T S M N P DD CC BB AA K EE W 3.175 FPT COUPLING DRAIN CONNECTION T OP VIEW LEFT SIDE VIEW FRONT REAR T ABLE 30 – SIDE SUPPL Y / FRONT RETURN (ALL DIMENSIONS ARE IN CM) NOTES: 1.
YORK INTERNA TIONAL 66 A L H B C D E F G J K R T S WY P M N U V BB AA CC DD 3.175 FPT COUPLING DRAIN CONNECTION T OP VIEW LEFT SIDE VIEW FRONT REAR General Arrangement Drawing – 70-95 T on Models BOTTOM SUPPL Y / BOTTOM RETURN LD07882 FIG .
FORM 100.50-EG3 (802) 67 YORK INTERNA TIONAL L H C D E F G J R T S P M N WY BB AA DD CC K EE 3.175 FPT COUPLING DRAIN CONNECTION T OP VIEW LEFT SIDE VIEW FRONT REAR SIDE SUPPL Y / REAR RETURN LD07883 NOTES: 1. Left and right hand side openings are the same size.
YORK INTERNA TIONAL 68 General Arrangement Drawing – 70-95 T on Models (ONL Y) OPTIONAL SIDE RETURN FIG . 9 – GENERAL ARRANGEMENT DRA WING – 70-95 TON MODEL (ONL Y) TABLE 33 – OPTIONAL SIDE RETURN (CM) NOTE: 1. Left side shown, RH side available (mirror image).
FORM 100.50-EG3 (802) 69 YORK INTERNA TIONAL Curb Layout Drawing FIG . 10 – CURB LA YOUT DRA WING 3.81 6.67 5.08 11.75 3.17 LD07884 UNIT BASERAIL PROFILE W L D C B A E Supply Opening Return Opening Condenser Section 6.35 Gas Outlet 3.81 MPT Connection G H LD07885 MODEL A B C D E G H L W 50-65 5.
YORK INTERNA TIONAL 70 Power/Control Entry Drawing FIG . 1 1 – POWER/CONTROL ENTR Y DRA WING – 50 - 95 TON MODELS MODEL 208V 230V 460V 575V 50 AAB B 55 AAB B 60 AAB B 65 AAB B 70 AAB B 75 AAB B 80 AAB B 85 AAB B 90 AAA A 95 AAA A TABLE 35 – POWER/CONTROL ENTRY DIMENSIONS ARE IN CM .
FORM 100.50-EG3 (802) 71 YORK INTERNA TIONAL Guide Specifications GENERAL Units shall be designed for outdoor roof top inst allation on a roof curb (optional). Units shall be cap able of pro- viding mechanical cooling down to 7.2°C (-17.7°C with a low ambient kit).
YORK INTERNA TIONAL 72 Guide Specifications (continued) Fan motors shall be NEMA designed, St andard ef fi- ciency ball bearing type with electrical characteristics and horsepower as specified. Motors shall be 1750 RPM, open drip proof type. The motor shall be located within the unit on an adjustable, heavy steel base.
FORM 100.50-EG3 (802) 73 YORK INTERNA TIONAL POWER SUPPL Y Unit power supply shall be 460V 3-phase 60 Hz (208, 230 and 575V optional) single-point power connections with terminal block connections.
YORK INTERNA TIONAL 74 • High and low pressure cutouts (one each refriger- ant circuit) • Minimum on time for compressors • Delay between compressor stages • Anti-short cycle delays (minimum off time) for com- pressors and supply fan • Cooling lockout at 7.
FORM 100.50-EG3 (802) 75 YORK INTERNA TIONAL BACNet IP Communications Card – for BAS com- munications, a BACNet card is available for ethernet connection. BACNet MSTP Communications Card – for BAS com- munications, a BACNet MSTP card is available for an RS-485 connection.
ROOF CURBS Full Perimeter Roof Curbs – 14" high roof curb with wood nailer . Roof curb supports the entire perimeter of the unit. Partial perimeter roof curbs – 14" high roof curb with wood nailer . Roof curb supports the air handling sec- tion with a separate support under the condenser end.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il York ECO R-22 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del York ECO R-22 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso York ECO R-22 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul York ECO R-22 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il York ECO R-22, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del York ECO R-22.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il York ECO R-22. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo York ECO R-22 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
