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INSTALLATION
INSTRUCTIONS
2010 Lennox Industries Inc.
Dallas, Texas, USA
®
Dave Lennox Signature
Collection XC17 Units
AIR CONDITIONER
506510−01
Litho U.S.A.
04/10
Supersedes 506498−01
RETAIN THESE INSTRUCTIONS FOR FUTURE
REFERENCE
TABLE OF CONTENTS
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Shipping and Packing List . . . . . . . . . . . . . . . . . . . . . . 1
Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
NOTICE
Mod
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Unit Dimensions − Inches (mm) and Parts Arrangement DISCHARGE AIR 39.40" 35.50" (1003) ELECTRICAL INLETS (902) [−024] 41 (1040) [−030 THROUGH −060] 47 (1194) SUCTION LINE INLET LIQUID LINE 18.60" INLET (470) 8.00" (203) 1 (25) ACCESS VIEW SIDE VIEW UNIT SUPPORT FEET 16−7/8 26−7/8 (429) (683) 8−3/4 (222) 3−3/4 (95) 3−1/8 30−3/4 4−5/8 (79) (781) (117) BASE WITH ELONGATED LEGS Model Number Identification XC17 −036 −230 −2 Refrigerant Type Minor Revision Number X = R−410A Voltage 230 = 208/230V−1ph−
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Typical Unit Parts Arrangement FAN MOTOR CONTROL PULSE−WIDTH MODULATION (PWM) GROUND LUG CONTACTOR−1POLE (K1−1) WIRE TIE HIGH VOLTAGE FIELD CONNECTIONS SLEEVE OUTDOOR AMBIENT TEMPERATURE SENSOR CAPACITOR (C12) MAIN CONTROL CONTROL BOX FAN MOTOR SURGE PROTECTION HIGH DISCHARGE LINE TEMPERATURE SENSOR COMPRESSOR HARNESS MUFFLER HIGH PRESSURE SWITCH FIELD CONNECTION FOR SUCTION LINE SUCTION LINE SERVICE VALVE PORT SUCTION LINE SERVICE VALVE LIQUID LINE SERVICE VALVE PORT VIBRATION ISOLATOR SLEEVE
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CAUTION IMPORTANT Physical contact with metal edges and corners while Only use Allen wrenches of sufficient hardness (50Rc − applying excessive force or rapid motion can result in Rockwell Harness Scale minimum). Fully insert the personal injury. Be aware of, and use caution when wrench into the valve stem recess. working near these areas during installation or while Service valve stems are factory−torqued (from 9 ft−lbs for servicing this equipment. small valves, to 25 ft−lbs for large valves)
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SERVICE PORT CAP SERVICE VALVES SERVICE PORT VARIOUS TYPES SERVICE PORT CORE (VALVE STEM SHOWN OPEN TO BOTH INDOOR AND CLOSED) INSERT HEX OUTDOOR UNITS WRENCH HERE SERVICE PORT CAP VALVE STEM FRONT-SEATED SERVICE PORT SERVICE PORT CORE TO INDOOR (VALVE STEM UNIT SHOWN OPEN) STEM CAP INSERT HEX WRENCH HERE TO OUTDOOR CLOSED TO BOTH UNIT INDOOR AND OUTDOOR ANGLE−TYPE UNITS SERVICE VALVE TO INDOOR STEM CAP (FRONT−SEATED UNIT TO INDOOR UNIT CLOSED) ANGLE−TYPE SERVICE VALVE TO OUTDOOR UNIT (BACK−SEA
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Recovering Refrigerant from Existing System RECOVERING REFRIGERANT FROM SYSTEM DISCONNECT POWER CONNECT MANIFOLD GAUGE SET Disconnect all power to the existing outdoor unit at the disconnect Connect a gauge set, clean recovery cylinder and a recovery 1 2 switch or main fuse box/breaker panel. machine to the service ports of the existing unit. Use the instructions provided with the recovery machine to make the connections. MAIN FUSE BOX/BREAKER PANEL MANIFOLD GAUGES SERVICE RECOVERY MACHINE DISCO
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MINIMUM CLEARANCE CLEARANCE ON ALL SIDES INCHES (MILLIMETERS) ABOVE UNIT 6 (152) ACCESS PANEL NOTES: CONTROL PANEL 48 (1219) ACCESS Clearance to one of the other three LOCATION sides must be 36 inches (914mm). 30 (762) 12 (305) Clearance to one of the remaining two sides may be 12 inches (305mm) and the final side may be 6 inches (152mm). LINE SET 36 (914) CONNECTIONS MINIMUM CLEARANCE BETWEEN TWO UNITS ACCESS PANEL 24 (610) LINE SET CONNECTIONS REAR VIEW OF UNIT Figure 3. Installation Cle
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ELEVATING THE UNIT With unit positioned at installation site, perform the following: Units are outfitted with elongated support feet as illustrated in Figure 4, Detail C. 1. Remove two side louvered panels to expose the unit base. If additional elevation is necessary, raise the unit by 2. Install the brackets as illustrated in Figure 4, Detail D extending the height of the unit support feet. This may be using conventional practices. achieved by using a 2 inch (50.8mm) Schedule 40 female 3. Repla
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DETAIL A DETAIL B INSTALL UNIT LEVEL OR, IF ON A SLOPE, MAINTAIN SLOPE TOLERANCE OF 2 DEGREES (OR 2 INCHES PER 5 FEET [50 MM PER 1.5 M]) AWAY INSTALL UNIT AWAY FROM WINDOWS FROM BUILDING STRUCTURE. BUILDING STRUCTURE MOUNTING TWO 90° ELBOWS INSTALLED IN LINE SET WILL SLAB REDUCE LINE SET VIBRATION. GROUND LEVEL Slab Mounting at Ground Level Outside Unit Placement DETAIL D DETAIL C Slab Side Mounting #10 1/2" LONG SELF−DRILLING SHEET METAL SCREWS COIL STABILIZING BRACKET (18 GAUGE METAL 2" WIDT
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Removing and Installing Panels ACCESS PANEL REMOVAL Removal and reinstallation of the access PANELS panel is as illustrated. ACCESS AND LOUVERED REMOVE 4 SCREWS TO REMOVE PANEL FOR WARNING ACCESSING COMPRESSOR AND CONTROLS. To prevent personal injury, or damage to panels, unit or structure, be sure to observe POSITION PANEL WITH HOLES the following: ALIGNED; INSTALL SCREWS While installing or servicing this unit, carefully stow all removed panels out of the AND TIGHTEN. way, so that the panels w
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NOTE When installing refrigerant lines longer than 50 New or Replacement Line Set feet, see the Lennox Refrigerant Piping Design and Fabrication Guidelines, CORP. 9351−L9, or contact REFRIGERANT LINE SET Lennox Technical Support Product Applications for This section provides information on installation or assistance. replacement of existing line set. If new or replacement line set is not being installed then proceed to Brazing Connections on page 13. IMPORTANT Mineral oils are not compatible w
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IMPORTANT Refrigerant lines must not contact structure. LINE SET INSTALLATION REFRIGERANT LINE SET INSTALLING Line Set Isolation The following illustrations are VERTICAL RUNS (NEW CONSTRUCTION SHOWN) examples of proper refrigerant line set isolation: NOTE Insulate liquid line when it is routed through areas where the surrounding ambient temperature could become higher than the REFRIGERANT LINE SET TRANSITION temperature of the liquid line or when pressure drop is equal to or greater th
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NITROGEN NOTE − Use silver alloy brazing rods with five or six percent minimum silver alloy for copper−to−copper brazing, 45 percent alloy for copper−to−brass and BRAZING copper−to−steel brazing. CONNECTIONS CAP AND CORE REMOVAL Remove service cap and core 2 CUT AND DEBUR from both the vapor and liquid line service ports. Cut ends of the refrigerant lines square 1 (free from nicks or dents) and debur the ends. The pipe must remain round and do not pinch end of the line. USE REGULATOR TO FLOW NIT
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VAPOR LIQUID Flushing the System TYPICAL CHECK EXPANSION VALVE REMOVAL PROCEDURE FLUSHING (Uncased Coil Shown) STUB END LINE SET AND INDOOR COIL (1 OF 2) TWO PIECE PATCH PLATE LIQUID LINE CHECK (UNCASED COIL ONLY) ORIFICE EXPANSION TYPICAL FIXED ORIFICE REMOVAL PROCEDURE HOUSING VALVE DISTRIBUTOR (Uncased Coil Shown) TUBES 1 TEFLON RING DISTRIBUTOR TUBES LIQUID LINE ORIFICE HOUSING TEFLON RING TEFLON RING SENSING FIXED ORIFICE LINE BRASS NUT OR DISTRIBUTOR EQUALIZER ASSEMBLY LINE DISTRIBUTOR LIQ
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FLUSHING LINE SET AND INDOOR COIL (2 OF 2) TYPICAL CHECK EXPANSION VALVE INSTALLATION PROCEDURE This outdoor unit is designed for use in systems that use check expansion valve metering device. See the Lennox XC17 Engineering Handbook 4 for approved check expansion valve kit match−ups and application information. The check expansion valve unit can be installed internal or 1/2 TURN external to the indoor coil. In applications where an uncased coil 12 1 11 TWO PIECE is being installed in a field−pr
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INSTALLING ISOLATION GROMMETS Leak Testing the System Locate the isolation grommets (provided). Slide grommets onto vapor and liquid lines. Insert grommets into piping panel to isolate refrigerant lines from sheet metal edges. PIPING PANEL WARNING SUCTION LINE When using a high pressure gas such as dry nitrogen to pressurize a refrigeration or air conditioning system, use a regulator that can control the pressure down to 1 or 2 psig (6.9 to 13.8 kPa). LIQUID LINE TWO ISOLATION GROMMETS ARE IMPOR
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LEAK TEST LINE SET AND INDOOR COIL 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. CONNECT GAUGE SET A Connect an HFC−410A manifold gauge set high 1 pressure hose to the vapor valve service port. B With both manifold valves closed, connect the LOW HIGH cylinder of HFC−410A refrigerant to the center port of the manifold gauge set. MANIFOLD GAUGE SET NOTE Lat
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Evacuating the System EVACUATING MANIFOLD GAUGE SET LINE SET AND INDOOR COIL CONNECT GAUGE SET HIGH LOW NOTE Remove cores from service valves (if not al- 1 ready done). A Connect low side of manifold gauge set with 1/4 SAE in−line tee to vapor line OUTDOOR service valve UNIT A34000 1/4 SAE TEE WITH B Connect high side of manifold gauge SWIVEL COUPLER set to liquid line service valve A VAPOR C Connect micron gauge available 500 SERVICE connector on the 1/4 SAE in−line tee. VALVE D Connect the v
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temperatures and pressures present during operation of IMPORTANT an air conditioning system. Non−condensables and water suction combine with refrigerant to produce substances Use a thermocouple or thermistor electronic vacuum that corrode copper piping and compressor parts. gauge that is calibrated in microns. Use an instrument capable of accurately measuring down to 50 microns. Electrical In the U.S.A., wiring must conform with current local codes and the current National Electric Code (NEC). I
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ROUTE CONTROL WIRES Install low voltage control wiring from outdoor to indoor unit and from CONTROL PANEL 3 thermostat to indoor unit as illustrated. See Figures 10 and 10 for typical configurations. A Run 24VAC control wires through hole with grommet. B Make 24VAC control wire connections to Main Control. NOTE Do not bundle any excess 24VAC control wires inside control panel. B NOTE Wire tie provides low voltage wire strain relief and to maintain separation of field installed low and high v
