Lennox International Inc. CONDENSING UNITS manual

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Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones Lennox International Inc. CONDENSING UNITS. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica Lennox International Inc. CONDENSING UNITS o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual Lennox International Inc. CONDENSING UNITS se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales Lennox International Inc. CONDENSING UNITS, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones Lennox International Inc. CONDENSING UNITS debe contener:
- información acerca de las especificaciones técnicas del dispositivo Lennox International Inc. CONDENSING UNITS
- nombre de fabricante y año de fabricación del dispositivo Lennox International Inc. CONDENSING UNITS
- condiciones de uso, configuración y mantenimiento del dispositivo Lennox International Inc. CONDENSING UNITS
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de Lennox International Inc. CONDENSING UNITS no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de Lennox International Inc. CONDENSING UNITS y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico Lennox International Inc. en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de Lennox International Inc. CONDENSING UNITS, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo Lennox International Inc. CONDENSING UNITS, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual Lennox International Inc. CONDENSING UNITS. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    07/1 1 506645−01 *2P0711* *P506645-01* Page 1  201 1 Lennox Industries Inc. Dallas, T exas, USA RET AIN THESE INSTRUCTIONS FOR FUTURE REFERENCE These instructions are intended as a general guide and do not supersede local codes in any way . Consult authorities who have jurisdiction before inst allation. W ARNING Improper installation, adjustme[...]

  • Página 2

    Page 2 506645−01 Unit Dimensions − Inches (mm) SUCTION AND LIQUID LINE CONNECTION DISCHARGE AIR SIDE VIEW OUTDOOR COIL F AN COMPRESSOR A B A OPTIONAL UNIT ST ANDOFF KIT (4) (FIELD INST ALLED) SIDE VIEW Model Numbers A B 14ACX−018−230 24−1/4 (616) 29−1/4 (743) 14ACX−024−230 28−1/4 (724) 33−1/4 (845) 14ACX−030−230 28−1/4 (72[...]

  • Página 3

    Page 3 14ACX SERIES T ypical Unit Parts Arrangement COMPRESSOR HARNESS CONNECTION LIQUID LINE SERVICE V AL V E SUCTION LINE SERVICE V AL VE OUTDOOR COIL DISCHARGE LINE HIGH PRESSURE SWITCH (S4) COMPRESS0R (B1) GROUND LUG CONT ACT OR (K1) CONTROL DUAL RUN CAP ACIT OR (C12) CONTROL WIRE LOOP CUTOUT FOR HIGH VOL TAGE CONDUIT NOTE  Plumbing layout a[...]

  • Página 4

    Page 4 506645−01 CAUTION Physical contact with metal edges and corners while applying excessive force or rapid motion can result in personal injury . Be aware of, and use caution when working near these areas during installation or while servicing this equipment. Operating Manifold Gauge Set and Service V alves These instructions are intended as [...]

  • Página 5

    Page 5 14ACX SERIES (V AL VE STEM SHOWN CLOSED) INSERT HEX WRENCH HERE SERVICE PORT CORE SER VICE PORT CAP ANGLE−TYPE SERVICE V AL VE (FRONT−SEA TED CLOSED) SER VICE PORT CORE TO OUTDOOR UNIT STEM CAP (V AL VE STEM SHOWN OPEN) INSER T HEX WRENCH HERE TO INDOOR UNIT ANGLE−TYPE SERVICE VALVE (BACK−SEATED OPENED) BALL (SHOWN CLOSED) SER VICE P[...]

  • Página 6

    Page 6 506645−01 Recovering Refrigerant from Existing System Use the following procedure to recover refrigerant from an existing system (indoor coil, line set and outdoor unit). SER VICE DISCONNECT SWITCH MAIN FUSE BOX/BREAKER P ANEL Disconnect all power to the existing outdoor unit at the service disconnect switch or main fuse box/breaker panel.[...]

  • Página 7

    Page 7 14ACX SERIES 6 (152) 36 (914) 12 (305) 30 (762) LINE SET CONNECTIONS 24 (610) LINE SET CONNECTIONS ACCESS P ANEL 48 (1219) MINIMUM CLEARANCE BETWEEN TWO UNITS CLEARANCE ON ALL SIDES  INCHES (MILLIMETERS) ACCESS P ANEL MINIMUM CLEARANCE ABOVE UNIT NOTES:  Clearance to on e of the o ther three sides must be 36 inches (914mm).  Clearan[...]

  • Página 8

    Page 8 506645−01 PLACING UNIT ON SLAB When installing unit at grade level, the top of the slab should be high enough above grade so that water from higher ground will not collect around the unit. The slab should have a slope tolerance as described in figure 5, detail B. ROOF MOUNTING Install the unit at a minimum of 4 inches (102 mm) above the su[...]

  • Página 9

    Page 9 14ACX SERIES New or Replacement Line Set This section provides information on new installation or replacement of existing line set. If a new or replacement line set is not required, then proceed to Brazing Connections on p age 1 1. Field refrigerant piping consist s of liquid and suction lines from the out door un it (braze connections) to t[...]

  • Página 10

    Page 10 506645−01 ANCHORED H EA VY NYLON WIRE TIE OR AUT OMOTIVE MUFFLER-TYPE HANGER STRAP LIQUID LINE TO V APOR LINE W ALL STUD LIQUID LINE NON−CORROSIVE MET AL SLEEVE V APOR LINE − WRAPPED IN ARMAFLEX AUT OMOTIVE MUFFLER-TYPE HANGER REFRIGERANT LINE SET  TRANSITION FROM VERTICAL TO HORIZONT AL Line Set Isolation  The following illustr[...]

  • Página 11

    Page 1 1 14ACX SERIES Brazing Connections Use the procedures outline in figures 9 and 1 0 for brazing line set connections to service valves. IMPORT ANT Polyol ester (POE) oils used wit h HFC−410A refr igerant absorb moisture very quickly . It is very important that the refrigerant sys tem be kept closed as much as possible. DO NOT remove li ne s[...]

  • Página 12

    Page 12 506645−01 A TT ACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND SUCTION / V APOR LINE SER VICE V AL VES OUTDOOR UNIT LIQUID LINE V APOR LINE LIQUID LINE SERVICE VA LV E SUCTION / V APOR LINE SER VICE VA LV E A TTACH GAUGES INDOOR UNIT SUCTION / V APOR SER VICE POR T MUST BE OPEN TO ALLOW EXIT POINT FOR NITROGEN A Connect gauge set low pr[...]

  • Página 13

    Page 13 14ACX SERIES WHEN BRAZING LINE SET TO SER VICE V AL VES, POINT FLAME A W A Y FROM SER VICE V A L VE. LIQUID LINE SERVICE V AL VE LIQUID LINE BRAZE LINE SET W rap both service valves with water saturated cloths as illustrated here and as mentioned in step 4, before brazing to line set . W ater saturated cloths must remain water saturated thr[...]

  • Página 14

    Page 14 506645−01 Flushing Line Set and Indoor Coil Flushing is only required if existing indoor coil and line set are to be used. Otherwise proceed to Installing Indoor Metering Device on page 15 . SENSING LINE TEFLON ® RING FIXED ORIFICE BRASS NUT LIQUID LINE ASSEMBL Y (INCLUDES STRAINER) LIQUID LINE ORIFICE HOUSING DISTRIBUT OR TUBES DISTRIBU[...]

  • Página 15

    Page 15 14ACX SERIES Installing Indoor Metering Device This outdoor unit is designed for use in systems that use either an fixed orifice (RFC) (included with outdoor unit), or exp ansion valve metering device (purchased sep arately) at the indoor coil. See the Lennox 14ACX Engineering Handbook for approved e x pansion valve kit matc h u ps. The exp[...]

  • Página 16

    Page 16 506645−01 IMPORT ANT The Environmental Protection Agency (EP A) prohibits the intentional venting of HFC refrigerants during maintenance, service, repair and disposal of appliance. Approved methods of recovery , recycling or reclaiming must be followed. IMPORT ANT If this unit is being matc hed with an approved line set or indoor unit coi[...]

  • Página 17

    Page 17 14ACX SERIES Evacuating Line Set and Indoor Coil A Open both manifold valves and start the vacuum pump. B Evacuate the line set and indoor unit to an absolute pressure of 23,000 microns (29.01 inches of mercury). NOTE  During the early stages of evacuation, it is desirable to close the manifold gauge valve at least once. A rapid rise in [...]

  • Página 18

    Page 18 506645−01 W ARNING Danger of Equipm ent Damage. A void deep vacuum operation. Do not use compressors to evacuate a system. Extremely low vacuums can cause internal arcing and compress or failure. Damage caused by deep vacuum operat ion will void warranty . CAUTION Brazing alloys and flux cont ain materials which are hazardous to your heal[...]

  • Página 19

    Page 19 14ACX SERIES Any excess high voltage field wiring should be trimmed and secured away from any low voltage field wiring. T o facilitate a conduit, a cutout is located in the bottom of the control panel. Connect conduit to the control panel using a proper conduit fitting. ROUTING HIGH VOL T AGE/ GROUND AND CONTROL WIRING HIGH VOL T AGE FIELD [...]

  • Página 20

    Page 20 506645−01 HIGH PRESSURE SWITCH (S4)  LIQUID LINE CRANKCASE THERMOST A T (S40) CRANKCASE HEA TER (HR1) Figure 16. T ypical Factory Wiring Diagram (Copeland Compressor)[...]

  • Página 21

    Page 21 14ACX SERIES CRANKCASE HEA TER (HR1) HIGH PRESSURE SWITCH (S4)  LIQUID LINE CRANKCASE THERMOST A T (S40) THERMAL PROTECTION SWITCH (S5 OR S173) Figure 17. T ypical Factory Wiring Diagram (Interlink Compressor)[...]

  • Página 22

    Page 22 506645−01 Servicing Units Delivered V oid of Charge If the out door unit is void of refrigerant, clean the system using the procedure described below . 1. Leak check system using procedure outlined in this instruction. 2. Evacuate the system using procedure outlined in this instruction. 3. Use nitrogen to break the vacuum and install a ne[...]

  • Página 23

    Page 23 14ACX SERIES CHECKING AIR FLOW A T INDOOR COIL Check airflow using the Delta−T ( D T) process using the illustration in figure 19. 1. Determine the desired D T Measure entering air temper- ature using dry bulb ( A ) and wet bulb ( B ). D T is the intersect- ing value of A and B in the t able (see triangle). 2. Find temperature drop acr[...]

  • Página 24

    Page 24 506645−01 Liquid Line Set Diameter Ounces per 5 feet (g per 1.5 m) adjust from 15 feet (4.6 m) line set* 3/8" (9.5 mm) 3 ounce per 5’ (85 g per 1.5 m) *If line length is greater than 15 ft. (4.6 m), add this amount. If line length is less than 15 ft. (4.6 m), subtract this amount. Refrigerant Charge per Line Set Length NOTE  The[...]

  • Página 25

    Page 25 14ACX SERIES 1. Confirm proper airflow across coil using figure 19. 2. Compare unit pressures with table 4, Normal Operating Pressures . USE WEIGH-IN METHOD Weigh-in or remove refrigerant based upon line length SCº (Subcooling) V alues (F:+/−1.0° [C: +/−0.6°]) BLOCK OUTDOOR COIL: [sometimes necessary with lower temperatures] Use card[...]

  • Página 26

    Page 26 506645−01 ST ART : Measure outdoor ambient temperature NOTE − Do not attempt to charge system where a dash appears, system could be overcharged. Superheat is taken at suction line service port. Suction line superheat must never be less than 5ºF at the suction line service port. USE WEIGH-IN METHOD Weigh-in or remove refrigerant based u[...]

  • Página 27

    Page 27 14ACX SERIES T able 4. HFC−410A Normal Operating Pressures (Liquid +10 and Suction +5 psig) IMPORT ANT Use this t able to perform maintenance checks; it is not a procedur e for charging the system. Minor variations in these pressures may be due to differences in instal lations. Significant deviations could mean that the sy stem is not pro[...]

  • Página 28

    Page 28 506645−01 System Operation UNIT COMPONENTS IMPORT ANT Some scroll compressor have internal vacuum protector that will unload scrolls when suction pressure goes below 20 psig. A hissing sound will be heard when the compressor is running unloaded. Protector will reset when low pressure in system is raised above 40 psig. DO NOT REPLACE COMPR[...]

  • Página 29

    Page 29 14ACX SERIES Indoor Unit 1. Clean or change filters. 2 . Lennox blower mot ors are prelubricat ed and permanent ly sealed. No more lubr ication is needed. 3 . Adjust blower speed for cooling. Meas ure the pressure drop over the coil to determ ine the corr ect blower CFM. Refer t o the u nit i nfor mat ion s ervic e manual f or p ressur e dr[...]

  • Página 30

    Page 30 506645−01 S tart−Up and Performance Checklist Job Name Job no. Date Job Location City S tate Installer City S tate Unit Model No. Serial No. Service T echnician Nameplate V olt age Rated Load Ampacity Compressor Outdoor Fan Maximum Fuse or Circuit Breaker Electrical Connections T ight?  Indoor Filter clean?  Supply V olt age (Unit[...]