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Insert for all ADDISON

®

 product manuals

Instructions:

In accordance with California Proposition 65 requirements, place enclosed label(s) in a highly visible location on outside of 
equipment to be repaired (i.e., near equipment’s serial plate). See label placement drawing in equipment’s Installation, Op-
eration and Service manual for label location (when available). Avoid placing label on areas with extreme heat, cold, corro-
sive chemicals or other elements. Extra labels are also included where repair of multiple units is involved. To order additional 
labels, please call +1.407.292.4400. 

To obtain a copy of the manual or for more information, visit the applicable website(s) below:
 

Incluya en todos los Manuales de productos de ADDISON

®

Instrucciones:

De conformidad con los requerimientos de la Propuesta 65 de California, ubique la(s) etiqueta(s) adjunta(s) en un lugar bien 
visible  en el exterior del equipo a ser reparado (es decir, cerca de la placa serial). Ver dibujo de instalación de la etiqueta en 
el Manual de Operaciones y Mantenimiento  (si esta disponible). Evite colocar la etiqueta en áreas con calor, frío, productos 
químicos corrosivos u otros elementos. Se incluyen etiquetas adicionales para el caso de reparación de varias unidades.
Para ordenar etiquetas adicionales, por favor llamar al +1.407.292.4400.

Para obtener una copia del manual  o para obtener mas información visite los sitios Web correspondientes a continuación.

www.addison-hvac.com

Código de Instalación e Inspecciones Anuales: 

Todas las instalaciones y mantenimientos de productos 

ADDISON

®

 deben ser realizados sólo por personal cualifi cado en la instalación y mantenimiento de los equipos 

vendidos y suministrados por Addison y/o por sus distribuidores y deben cumplir con todos los requisitos 
dispuestos en los manuales de ADDISON

®

 y con todos los estándares locales aplicables a la instalación, 

mantenimiento, funcionamiento y etiquetado del equipo. Para conseguir un funcionamiento óptimo y seguro, 
Addison recomienda que un técnico cualifi cado revise anualmente sus equipos y realice el mantenimiento 
siempre que sea necesario, usando exclusivamente piezas de repuesto de ADDISON

®

.

Información adicional: 

A través de los distribuidores de Addison está disponible la información sobre 

aplicaciones, guías detalladas sobre diseño de sistemas e instalación y funcionamiento de los productos. Por 
favor contacte con nosotros si necesita más información o si requiere un manual de instalación, 
funcionamiento y mantenimiento.

Este producto no es para uso residencial.
La intención de este documento es la de ayudar a los profesionales autorizados en el libre ejercicio de su 
profesión.

Installation Code and Annual Inspections: 

All installation and service of ADDISON

®

 equipment must be performed by a contractor qualifi ed in the 

installation and service of equipment sold and supplied by Addison and conform to all requirements set forth in the ADDISON

®

 manuals and all applicable 

governmental authorities pertaining to the installation, service, operation and labeling of the equipment. To help facilitate optimum performance and 
safety, Addison recommends that a qualifi ed contractor conduct, at a minimum, annual inspections of your ADDISON

®

 equipment and perform service 

where necessary, using only replacement parts sold and supplied by Addison.

Further Information:

 Applications, engineering and detailed guidance on systems design, installation and equipment performance is available through 

ADDISON

®

 representatives. Please contact us for any further information you may require, including the Installation, Operation and Service Manual.

This product is not for residential use.
This document is intended to assist licensed professionals in the exercise of their professional judgment.

www.addison-hvac.com

Printed in U.S.A.

P/N 91070020 Rev B 03/12

Page 1 of 1

© 2012 Addison 

All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any means –  

 

 

 

graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems – without 

 

written permission of Addison.

Addison

7050 Overland Road
Orlando, FL 32810 U.S.A.
Telephone: +1.407.292.4400
Fax: +1.407.290.1329
www.addison-hvac.com

Summary of Contents for B

Page 1: ...sate Piping 5 Gas Piping and Venting 5 6 Cooling System Options 6 8 Hot Gas Bypass 6 Head Pressure Control 6 Variable Speed Control 6 Adjustable High and Low Pressure 7 Hot Water Heat Recovery 7 8 Mechanical Adjustments 9 10 Evaporator Blower Fan 9 10 Electrical System Options 10 Air Flow Switch 10 Clogged Filter Indicator 10 Convenience Outlet 10 Exhaust Fan Interlock 10 Power Through the Curb 10...

Page 2: ...e anualmente sus equipos y realice el mantenimiento siempre que sea necesario usando exclusivamente piezas de repuesto de ADDISON Información adicional A través de los distribuidores de Addison está disponible la información sobre aplicaciones guías detalladas sobre diseño de sistemas e instalación y funcionamiento de los productos Por favor contacte con nosotros si necesita más información o si r...

Page 3: ...Product Labeling Signal words are used in combination with colors and or pictures on product labels Following are examples of product labels with explanations of the colors used WARNING Electric Shock Hazard Turn Off All Power Before Servicing DANGER Fire Hazard Use copper wire only Failure to observe could result in property damage bodily injury or death WARNING Cuts and Abrasion Hazard Wear glov...

Page 4: ...vice end and clearance at this point should be maintained A 36 clearance must be allowed for access to the compressor and electrical panel A 24 clearance must be maintained for the air inlet to the condenser coil s Do not locate the unit under an overhang that will short circuit hot air to the coil intakes When installed at ground level the unit should be mounted on a level concrete slab which sho...

Page 5: ...Connections Power wiring should be connected to the main power terminal block located within the unit main control section Power wiring connections on units with factory disconnects should be made at the line side of the disconnect switch Low voltage wiring connections are made to the remote mounted controller or time clock DO NOT TAMPER WITH FACTORY WIRING Contact your local representative or the...

Page 6: ... or metal be provided to prevent any possible damage to the roof If condensate is to be piped into the building drainage system the drain line must penetrate the roof external to the unit Refer to local codes for additional requirements CAUTION Units with high internal and external static pressure drops will require a deeper trap Use the graph and table in Figure 2 GAS PIPING AND VENTING For DC un...

Page 7: ... discharge pressure will permit stable operation in ambients down to 32F The operating pressure switch is adjustable to match customer needs it is factory set to re energize the fans when discharge pressure drops to 295 psig and energize them when pressure increases to 430 psig Variable Speed Control The VARISPEED Fan Control System controls the compressor discharge pressure The speed control modu...

Page 8: ... 0psig 150 psig and is factory set to open at 60 psig and close at 35psig The high pressure switch is adjustable between 200 psig And 610psig and factory set to open at 600psig and to close at 550 psig MECHANICAL ADJUSTMENTS SET FAN RPM All evaporator motor sheaves are set when tested and shipped from the factory Actual rpm must be set and verified with a tachometer Refer to the following Blower P...

Page 9: ...off easily 7 Remove the belt Do NOT pry off belt 8 Loosen set screw s on the outer half of the adjustable pulley 9 The unit has one of two different types of adjustable pulleys 10 Remove key if unit has a keyway type pulley 11 To set the blower for a desired CFM L s first turn the outer half of the adjustable pulley clockwise until it meets the inner half of the pulley 12 Turn the outer half of th...

Page 10: ...a sleeve can be installed in the compressor section to bring power wiring inside the curb preventing a separate roof penetration The sleeve must be sealed after wiring is completed with a suitable mastic to prevent water from entering the space Firestat This control mounted in the return air section de energizes the unit when return air reaches 135 F It is a manual reset control Sure Trip This con...

Page 11: ...ermistor The Electronic solid state control center measures the sensor s change in resistance and sends a varying DC current to the Modulator Regulator valve to adjust the gas input as required 5 The flame sensor proves the presence of the pilot flame generating a DC current of 0 2 microamp or greater to the ignition control The ignition control s internal switch action then de energizes the spark...

Page 12: ...ance Bearings Small ECW s smaller than ECW666 are provided with no maintenance inboard bearings These bearings should require no maintenance during the life of the equipment Larger ECW s come equipped with an external flanged bearing which should be greased annually Use a petroleum based lubricant Drive Motor The drive motors should require no maintenance Replacement motors may be purchased from n...

Page 13: ...dome temperature of the compressor 1 Check crankcase sightglass add oil to bring level to midway in sightglass 2 Check oil pump 3 Check oil failure control for calibration 4 Allow compressor to cool for two hours if compressor is hot Recheck for open circuit 5 Check run capacitor for compressor and fan motor 6 Check subcooling 7 Check for low oil level 7 Check discharge and liquid line pressures c...

Page 14: ...usted expansion valve 4 Check superheat and adjust TXV 5 Dirty filter 5 Check filter and evaporator coil 6 Too little air flow or low entering air temperature 6 Check airflow and entering air wet bulb conditions 7 Restriction in suction or liquid line 7 Check refrigerant circuit for restriction 1 Insufficient refrigerant charge 1 Check subcooling check for leak 2 Defective or improperly adjusted e...

Page 15: ...r motor not running N Supply air temperature too high O Supply air temperature P Liquid line too hot R Suction line frosting Varispeed Condenser Head Pressure Control SYMPTOM POSSIBLE CAUSE REMEDY 1 Input pressure is below operating range 1 No problem normal operation 2 No 24 volt control voltage 2 Check for 24 V AC at control 3 No input pressure to control 3 Check alignment of capillary fitting S...

Page 16: ...al equalizer passage 5 Worn or eroded regulator seat A Erratic pressure control E Regulator fails to close D Regulator will not provide pressure control C Regulator hunting chattering large fluctuations in controlled pressures B Regulator leakage 4 Locate and remove stoppage Install strainer 5 Replace defective part 2 Increase superheat setting Dampen bulb response by repositioning 2 Readjust the ...

Page 17: ...er supply must be 24V AC 2 MR valve installed backward 2 Arrow on MR valve should point in direction of gas flow 2 Install properly 1 Room Override Thermostat if used calls for heat 1 Remove T115 wires from amplifier terminals 3 and 14 1 If proper operation is obtained check thermostat wiring for shorts Rotate thermostat dial above and below room temperature to prove thermostat function 2 Open cir...

Page 18: ...obstruction in gas pipe ahead of controls Increase gas pressure if possible H Incorrect discharge air temperature 1 Calibration 1 Check seal on calibration potentiometer 1 Recalibrate per Temperature Calibration procedure 1 Dirty or sticking plunger 1 Examine Plunger should be clean smooth and operate freely in solenoid sleeve 1 Clean or replace plunger if necessary 2 Loose or broken wiring 2 Insp...

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