Instruction/ maintenance manual of the product 506510-01 Lennox International Inc.
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04/10 506510−01 *2P0410* *P506510-01* Page 1 E 2010 Lennox Industries Inc. Dallas, T exas, USA NOTICE A thermostat is not inc luded and must be ordered s epa r a t e ly . The Lennox Com fort Sense ® 7000 therm ostat may be used, as well as other therm ostats.
Page 2 506510−01 Unit Dimensions − Inches (mm) and Parts Arrangement 4−5/8 (1 17) 39.40" (1003) 35.50" (902) 18.60" (470) 8.00" (203) 1 (25) LIQUID LINE INLET SUCTION LINE IN.
Page 3 XC17 SERIES T ypical Unit Parts Arrangement LIQUID LINE FIL TER DRIER (SINGLE FLOW) HIGH PRESSURE SWITCH FIELD CONNECTION FOR LIQUID LINE SET LIQUID LINE SERVICE VA LV E LIQUID LINE SERVICE V A.
Page 4 506510−01 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.
Page 5 XC17 SERIES (V AL VE STEM SHOWN CLOSED) INSERT HEX WRENCH HERE V A L VE STEM FRONT-SEA TED TO OUTDOOR UNIT SERVICE PORT CORE TO INDOOR UNIT SERVICE PORT SER VICE POR T CAP CLOSED TO BOTH INDOOR.
Page 6 506510−01 Recovering Refrigerant from Existing System SER VICE DISCONNECT SWITCH MAIN FUSE BOX/BREAKER P ANEL Disconnect all power to the existing outdoor unit at the disconnect switch or main fuse box/breaker panel.
Page 7 XC17 SERIES CONTROL P ANEL ACCESS LOCA TION 6 (152) 36 (914) 12 (305) 30 (762) LINE SET CONNECTIONS 24 (610) LINE SET CONNECTIONS ACCESS P ANEL REAR VIEW OF UNIT 48 (1219) MINIMUM CLEARANCE BET.
Page 8 506510−01 ELEV A TING THE UNIT Units are outfitted with elongated support feet as illustrated in Figure 4, Detail C. If additional elevation is necessary, raise the unit by extending the height of the unit support feet. This may be achieved by using a 2 inch (50.
Page 9 XC17 SERIES LEG DET AIL BASE 2" (50.8MM) SCH 40 FEMALE THREADED ADAPTER ONE BRACKET PER SIDE (MIN.); FOR EXTRA ST ABILITY , TWO BRACKETS PER SIDE, 2" (50.
Page 10 506510−01 Removing and Installing Panels REMOVE 4 SCREWS TO REMOVE P ANEL FOR ACCESSING COMPRESSOR AND CONTROLS. POSITION P ANEL WITH HOLES ALIGNED; INST ALL SCREWS AND TIGHTEN. ACCESS P ANEL REMOV AL Removal and reinstallation of the access panel is as illustrated.
Page 1 1 XC17 SERIES New or Replacement Line Set REFRIGERANT LINE SET This section provides information on installation or replacement of existing line set. If new or replacement line set is not being installed then proceed to Brazing Connections on p age 13.
Page 12 506510−01 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 .
Page 13 XC17 SERIES CUT AND DEBUR CAP AND CORE REMOV AL Cut ends of the refrigerant lines square (free from nicks or dents) and debur the ends. The pipe must remain round and do not pinch end of the line. Remove service cap and core from b ot h t h e vapor and liquid line service ports.
Page 14 506510−01 Flushing the System SENSING LINE TEFLON RING FIXED ORIFICE (Uncased Coil Shown) BRASS NUT LIQUID LINE ASSEMBL Y (INCLUDES STRAINER) LIQUID LINE ORIFICE HOUSING DISTRIBUT OR TUBES DISTRIBUT OR ASSEMBL Y REMOVE AND DISCARD WHITE TEFLON SEAL (IF PRESENT) A On fully cased coils, remove the coil access and plumbing panels.
Page 15 XC17 SERIES A Attach the vapor line sensing bulb in the proper orientation as illustrated to the right using the clamp and screws pro- vided. NOTE Confirm proper thermal contact between vapor line and check expansion bulb before insulating the sensing bulb once installed.
Page 16 506510−01 INST ALLING ISOLA TION GROMMETS Locate the isolation grommet s (provided). Slide grommet s onto vapor and liquid lines. Insert grommets into piping p anel to isolate refrigerant lines from sheet met al edges. TWO ISOLA TION GROMMETS ARE PROVIDE FOR THE LIQUID AND SUCTION LINE PIPE P ANEL P ASS THROUGH.
Page 17 XC17 SERIES TO V APOR SER VICE V AL VE HFC−410A MANIFOLD GAUGE SET OUTDOOR UNIT HIGH LOW NITROGEN NOTE Normally, the high pressure hose is connected to the liquid line port. How- ever, connecting it to the vapor port better protects the manifold gauge set from high pressure damage.
Page 18 506510−01 Evacuating the System A Open both manifold valves and start the vac uum 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 ear ly stages of evacuat ion, it is desir able to c los e the m anifold g auge valve at least once.
Page 19 XC17 SERIES IMPORT ANT Use a thermocouple or thermistor electronic vacuum gauge that is calibrated in microns. Use an instrument capable of accurately measuring down to 50 microns. W ARNING Danger of Equipm ent Damage. A void deep vacuum operation.
Page 20 506510−01 NOTE For proper voltages, select thermostat wire (control wires) gauge per table below . WIRE RUN LENGTH A WG# INSULA TION TYPE LESS THAN 100’ (30 METERS) 18 TEMPERA TURE RATING MORE THAN 100’ (30 METERS) 16 35ºC MINIMUM.
Page 21 XC17 SERIES Figure 7. T ypical XC17 Wiring.
Page 22 506510−01 Main Control Jumpers and T erminals MAIN CONTROL AIR CONDITIONER ONE ST AGE T ABLE 3 PROVIDES ADDITIONAL INFORMA TION CONCERNING JUMPERS, LOOP , AND CONNECTIONS FOR THE MAIN CONTROL.
Page 23 XC17 SERIES T able 3. Main Control Jumpers and T erminals Board ID Label Description E12 PSC Fan 240 VAC output connection for outdoor fan. E16 PSC Fan 240 VAC input connection for outdoor fan. E18 W 24VAC output for defrost auxiliary heat output.
Page 24 506510−01 Field Control Wiring Y1 O R W1 G D R Y1 L C C Air Handler Control ComfortSense [ 7000 Thermostats Catalog # Y0349 or Y2081 One − Stage Air Conditioner Control B Y2 Y2 W O DS L T T W2 H W3 H O C L Y2 DS DH G R Y1 W2 W1 R connection required for outdoor unit with Control LSOM function.
Page 25 XC17 SERIES Y1 O R W1 G D R Y1 L C C Furnace Control ComfortSense [ 7000 Thermostats Catalog # Y0349 or Y2081 One − Stage Air Conditioner Control B Y2 Y2 W O DS L T T W2 H H O C L Y2 DS DH G R Y1 W2 W1 R connection required for outdoor unit with Control LSOM function.
Page 26 506510−01 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 on Page 16. 2. Evacuate the system using procedure outlined on Page 18.
Page 27 XC17 SERIES ADDING OR REMOVING REFRIGERANT This system uses HFC−410A refrigerant which operates at much higher pressures than HCFC−22. The pr e−installed liquid line filter drier is approved for use with HFC−410A only . Do not replace it with components designed for use with HCFC−22.
Page 28 506510−01 Use WEIGH IN to initially charge a system when the out door unit is void of charge. T o verify charge and add or remove refrigerant use either APPROACH or SUBCOOLING methods.
Page 29 XC17 SERIES APPº (Approach) V alues(F:+/−1.0° [C: +/−0.6°])* If refrigerant added or removed, retest to confirm that unit is properly charged If value is greater than shown (high approach), add refrigerant; if less than shown (liquid temp too close to ambient temp, low approach), remove refrigerant.
Page 30 506510−01 Operating and T emperature Pressures Minor variations in these pressures may be expected due to dif ferences in inst allations. Significant differences could mean that the system is not properly charged or that a problem exists with some component in the system.
Page 31 XC17 SERIES System Operation 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.
Page 32 506510−01 TEST PINS FUNCTION Placing the JUMPER ON the field test pins (E33) (see Page 22 for location of TEST pins) allows the technician to S Clear compressor anti−short cycle delay. S Clear five−strike fault lockouts High / Low pressure switches and High Discharge Temperature Sensor.
Page 33 XC17 SERIES T able 6. Ambient Sensor T emperature / Resist ance Range Degrees Fahrenheit Resistance Degrees Fahrenheit Resistance Degrees Fahrenheit Resistance Degrees Fahrenheit Resistance 136.3 2680 56.8 16657 21.6 44154 −1 1.3 123152 133.
Page 34 506510−01 T able 7. High Discharge Sensor T emperature / Resist ance Range Degrees Fahrenheit Resistance Degrees Fahrenheit Resistance Degrees Fahrenheit Resistance Degrees Fahrenheit Resistance 303.1 183 186.1 1052 136.8 2656 94.5 6613 298.
Page 35 XC17 SERIES T able 8. Sensor T emperature / Resist ance Range Sensor T emperature Range °F (°C) Resist ance values range (ohms) Pins/Wire Color Outdoor (Ambient) −40ºF to 140ºF (−40ºC.
Page 36 506510−01 Outdoor Main Control LEDs Solution Possible Cause(s) Condition DS1 1 Green Solution Possible Cause(s) Condition DS14 Red DS1 1 Green Solution Possible Cause(s) Condition DS14 Red O.
Page 37 XC17 SERIES T able 10. Compressor LED Alert Codes Out door Main Control LEDs Condition Possible Cause(s) Solution Clearing St atus DS15 Y ellow DS13 Red OFF ON Compressor Internal Overload Trip Thermostat demand signal Y1 is present, but compressor not running 1 Compressor protector is open.
Page 38 506510−01 Outdoor Main Control LEDs Clearing St atus Solution Possible Cause(s) Condition DS15 Y ellow Clearing St atus Solution Possible Cause(s) Condition DS13 Red 5 Flashes then Pause OFF Open Circuit Compressor has an open circuit due to power dis- connection, fuse is open or other similar conditions.
Page 39 XC17 SERIES Figure 19. High Pressure Switch Operation.
Page 40 506510−01 Figure 20. Low Pressure Switch Operation.
Page 41 XC17 SERIES Figure 21. High Discharge T emperature Sensor Operation.
Page 42 506510−01 Maintenance W ARNING Electric shock hazard. Can cause injury or death. Before attempting to perform any service or maintenance, turn the electrical power to unit OFF at disconnect switch(es).
Page 43 XC17 SERIES LED CODES AND SEQUENCE OF OPERA TIONS During s t art up, the LED will first display any error conditions (see table 12) if present. If no errors are detected then the LED code indicating one or two stage operation will display then a long p ause.
Page 44 506510−01 MAIN CONTROL CONTROL P ANEL F AN MOT OR CONTROL PULSE−WIDTH MODULA TION (PWM) JUMPER OFF JUMPER ON J2 LED CFM Profile Pin Select VERIFY DC V O L T AGE OUTPUT USING F AN PWM OUT AND COM TERMINALS. SEE T ABLE 1 1 FOR OPTIMAL DC VOL T AG E BASED ON CFM PROFILE USED.
Page 45 XC17 SERIES MAIN CONTROL CONTROL P ANEL F AN MOT OR CONTROL PULSE−WIDTH MODULA TION (PWM) COM YELLOW WIRE GREEN RED BROWN RED BLACK YELLOW YELLOW RED RED BLACK GREEN YELLOW BLACK PWM FAN CONTROL YELLOW BLACK YELLOW BLUE SEE T ABLE 11 FOR CFM PROFILE SELECTION OPTIONS.
Page 46 506510−01 F AN MOT OR TEST PROCEDURE A simple test can be used to test the fan motor operation. A fully charged 9V battery will be required for this procedure.
Page 47 XC17 SERIES F AN MOT OR SURGE PROTECTION Surge Protector (Metal Oxide V aristor − MOV) − A part designed to protect electrical devices from volt age spikes that are 3 to 4 times the normal circuit volt age (See Figure 26 for illustration of component).
Page 48 506510−01 Outdoor Coil Th e out door unit must be properly maint ained to ensure its proper operation. S Please cont act your dealer to schedule proper inspection and maintenance for your equipment. S Make sure no obstructions restrict airflow to the outdoor unit.
Page 49 XC17 SERIES XC17 S tart−Up and Performance Checklist Suction Pressure: Liquid Pressure: Supply Air T emperature: Ambient T emperature: Return Air: T emperature: System Refrigerant Charge (Refer to manufacturer’s information on unit or installation instructions for required subcooling and approach temperatures.
An important point after buying a device Lennox International Inc. 506510-01 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lennox International Inc. 506510-01 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lennox International Inc. 506510-01 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lennox International Inc. 506510-01 you will learn all the available features of the product, as well as information on its operation. The information that you get Lennox International Inc. 506510-01 will certainly help you make a decision on the purchase.
If you already are a holder of Lennox International Inc. 506510-01, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lennox International Inc. 506510-01.
However, one of the most important roles played by the user manual is to help in solving problems with Lennox International Inc. 506510-01. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lennox International Inc. 506510-01 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
