Lennox Elite XC13 Installation Instructions Manual
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Lennox Elite XC13 Installation Instructions Manual

Elite series
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E2010 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Improper
installation,
service or maintenance can cause personal injury,
loss of life, or damage to property.
Installation and service must be performed by a
licensed professional installer (or equivalent) or a
service agency.
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.
IMPORTANT
The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFCs, HCFCs and HFCs) as
of July 1, 1992. Approved methods of recovery,
recycling or reclaiming must be followed. Fines
and/or
incarceration
noncompliance.
IMPORTANT
This unit must be matched with an indoor coil as
specified in Lennox XC13 Engineering Handbook.
Coils previously charged with HCFC−22 must be
flushed.
03/10
*2P0310*
adjustment,
alteration,
may
be
levied
for
INSTALLATION
INSTRUCTIONS
®
Elite
Series XC13 Units
AIR CONDITIONER
506120−01
03/10
Supersedes 07/09

Table of Contents

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Shipping and Packing List

Check the unit for shipping damage and listed times below
are intact. If damaged, or if parts are missing, immediately
contact the last shipping carrier.
1
Assembled outdoor unit.
1
Refrigerant flow control (RFC) kit (Fixed Orifice)

XC13 Air Conditioner Units

The XC13 Air Conditioners, which will also be referred to in
this instruction as the outdoor unit, uses HFC−410A
refrigerant. This outdoor unit must be installed with a
matching indoor unit and line set as outlined in the Lennox
XC13 Engineering Handbook.
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506120−01
*P506120-01*
Litho U.S.A.
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Summary of Contents for Lennox Elite XC13

  • Page 1: Table Of Contents

    Refrigerant flow control (RFC) kit (Fixed Orifice) XC13 Air Conditioner Units IMPORTANT The XC13 Air Conditioners, which will also be referred to in This unit must be matched with an indoor coil as this instruction as the outdoor unit, uses HFC−410A specified in Lennox XC13 Engineering Handbook.

  • Page 2: Unit Dimensions

    4−1/2 (114) 3−1/4 5−1/2 13−1/2 27−1/8 3−5/8 (83) (140) (343) (689) (92) XC13−018, −024, AND −030 XC13−036 TO −060 BASE SECTIONS BASE SECTIONS WITH ELONGATED LEGS Model/Capacity XC13−018 27 (686) 27 (686) 28 (711) XC13−024 27 (686) 27 (686) 28 (711) XC13−030...

  • Page 3: General Information

    IMPORTANT your supervisor. Lennox Industries Inc. Only use Allen wrenches of sufficient hardness P.O. Box 799900 (50Rc − Rockwell Harness Scale minimum). Fully Dallas, TX 75379−9900 insert the wrench into the valve stem recess.

  • Page 4: Recovering Refrigerant From Existing System

    1. Remove service port cap with an appropriately sized Without Torque Wrench: Finger tighten and use an wrench. appropriately sized wrench to turn an additional 1/6 turn clockwise as illustrated in figure 1. 2. Connect gauge to the service port. To Open and Close Ball−Type Service Valve: 3.

  • Page 5: Removing Existing Outdoor Unit

    A clearance of 24 in. (610 mm) must be maintained 2. Pump as much of the existing HCFC−22 refrigerant with the compressor back into the outdoor unit until between two units. Page 5 XC13 SERIES...
  • Page 6 POSITIONING CONSIDERATIONS NOTE − If necessary for small base unit stability, anchor unit to slab as described in Stabilizing Small Base Unit on CAUTION Uneven Surfaces. ELEVATING AND STABILIZING SMALL−BASE UNIT In order to avoid injury, take proper precaution when lifting heavy objects.

  • Page 7: Removing And Installing Smarthingetpanels

    1. Position the panel almost parallel with the unit as further, consider a different type of field−fabricated illustrated in figure 13, detail D with the screw side as framework that is sturdy enough for greater heights. close to the unit as possible. Page 7 XC13 SERIES...

  • Page 8: New Or Replacement Line Set

    REFRIGERANT LINE SET Field refrigerant piping consists of liquid and suction lines from the outdoor unit (braze connections) to the indoor unit coil (flare or sweat connections). Use Lennox L15 (sweat, non−flare) series line set, or use field−fabricated refrigerant DETAIL A lines as listed in table 2.
  • Page 9 If the XC13 is being used with either a new or existing IMPORTANT - REFRIGERANT LINES MUST NOT CONTACT WALL. indoor coil which is equipped with a liquid line which served LIQUID LINE OUTSIDE WALL SUCTION LINE as a metering device (RFCI), the liquid line must be WOOD BLOCK replaced prior to the installation of the XC13 unit.

  • Page 10: Brazing Connections

    Brazing Connections WARNING WARNING Polyol ester (POE) oils used with HFC−410A When using a high pressure gas such as dry nitrogen to pressurize a refrigerant absorb moisture very quickly. It is very refrigeration conditioning important that the refrigerant system be kept system, use a regulator that can closed as much as possible.

  • Page 11: Removing Indoor Unit Metering Device

    3. Using two wrenches, disconnect liquid line from liquid Use the following procedure to remove the indoor unit’s line orifice housing. Take care not to twist or damage fixed orifice and install a temporary field provided fitting. distributor tubes during this process. Page 11 XC13 SERIES...

  • Page 12: Flushing The System

    Take care to empty all existing traps. Polyol ester (POE) oils are used in LIQUID LINE ASSEMBLY Lennox units charged with HFC−410A refrigerant. WITH BRASS NUT Residual mineral oil can act as an insulator, preventing proper heat transfer. It can also clog...

  • Page 13: Refrigerant Metering Device Kits

    Device the recovery machine, gauges and refrigerant drum. XC13 units can be configured for use in with either a Refrigerant Metering Device Kits HFC−410A fixed orifice or TXV metering devices. This This outdoor unit is designed for use in systems that use...
  • Page 14 TIGHTENING DISTANCES To prevent any possibility of water damage, properly insulate all parts of the TXV assembly that may sweat due Use figure 23 to tighten fasteners and caps when a torque to temperature differences between the valve and its wrench is not available.

  • Page 15: Leak Testing The System

    1/8 turn (7 ft−lbs) as illustrated pounds (31 kPa) pressure]. in figure 23. 4. Close the valve on the HFC−410A cylinder and the See the XC13 Engineering Handbook for approved TXV valve on the high pressure side of the manifold gauge indoor/outdoor unit match−ups...

  • Page 16: Evacuating The System

    Connect an HFC−410A manifold gauge set high pressure hose to the MANIFOLD GAUGE SET suction valve service port. With both manifold valves closed, connect the cylinder of HFC−410A refrigerant to the center port of the manifold gauge set. Note: Later in the procedure, the HFC−410A container will be replace by the nitrogen container.
  • Page 17 Replace the stem caps and secure finger tight, been met, disconnect the manifold hose from the then tighten an additional one−sixth (1/6) of a turn vacuum pump and connect it to an upright cylinder of as illustrated in figure 1. Page 17 XC13 SERIES...

  • Page 18: Electrical Connections

    Electrical Connections WARNING In the United States, wiring must conform with current local Electric Shock Hazard. Can cause codes and the current National Electric Code (NEC). In injury or death. Canada, wiring must conform with current local codes and the current Canadian Electrical Code (CEC). Line voltage present...

  • Page 19: Low Voltage Connections

    TIGHTEN WIRE TIE XC13 XC13 XC13 XC13 XC13 XC13 XC13 NOTE − Refer to furnace, blower coil and accessory instructions for additional wiring configurations with other optional controls. Figure 30. 24VAC Control Wiring Diagrams (Field Installed) Page 19 XC13 SERIES...

  • Page 20: Servicing Outdoor Unit Delivered Void Of Charge

    Figure 31. Typical XC13 Unit Wiring Diagram 4. Use nitrogen to break the vacuum and install a new Servicing Outdoor Unit Delivered Void of filter drier in the system. Charge 5. Evacuate the system again. Then, weigh the If the outdoor unit is void of refrigerant, clean the system appropriate amount of HFC−410A refrigerant as listed...

  • Page 21: Start−Up Procedure

    Connect the manifold gauge set’s low pressure side to the suction line service port. Connect the manifold gauge set’s high pressure side to the liquid line service port. Position temperature sensor on liquid line near liquid line service port. Figure 32. Connecting Gauge Set for Testing and Charging Page 21 XC13 SERIES...

  • Page 22: Charging System

    1. Determine the desired DT Measure entering air temperature INDOOR COIL AIRFLOW CHECK using dry bulb (A) and wet bulb (B). DT is the intersecting value of A and B in the table (see triangle). 2. Find temperature drop across coil Measure the coil’s dry bulb Temp.
  • Page 23 8 (4.4) 8 (4.4) 11 (6.1) 7 (3.9) 8 (4.4) 9 (5.0) temperature too close to ambient temperature, *Temperature of air entering outdoor coil low approach), remove refrigerant. Figure 36. Using HFC−410A Approach (TXV) Charge Method Page 23 XC13 SERIES...
  • Page 24 1. Connect gauge set as illustrated in figure 32. 65ºF 2. Confirm proper airflow across coil using figure 33. START: Measure outdoor ambient temperature 3. Compare unit pressures with table 4, Normal Operating Pressures. ABOVE 4. Set thermostat to call for heat (must have a cooling USE WEIGH-IN METHOD DO NOT CHARGE UNIT load between 70-80ºF (21−26ºC)
  • Page 25 125.0 166.7 214.0 274.1 340.5 423.2 512.9 622.7 127.3 169.6 217.4 278.2 345.3 428.8 519.3 630.1 129.7 172.6 220.9 282.3 350.1 434.5 525.8 637.5 132.2 175.4 224.4 286.5 355.0 440.2 532.4 645.0 134.6 228.0 360.0 539.0 Page 25 XC13 SERIES...

  • Page 26: System Operation

    System Operation A filter drier is factory-installed as illustrated in Unit Dimensions on page 2, with each XC13 unit to ensure a The outdoor unit and indoor blower cycle on demand from clean, moisture−free system. A replacement filter drier is the room thermostat.

  • Page 27: Homeowner Information

    Clogged filters and blocked airflow provided with your thermostat for specific operation prevent your unit from operating at its most efficient level. details. 1. Air Filter Ask your Lennox dealer to show you where Temperature Setting Levers Set the lever or dial to −...

  • Page 28: Start−Up And Performance Checklist

    If your system fails to operate, check the following before OPTIONAL ACCESSORIES calling for service: Refer to the Lennox XC13 Engineering Handbook for the Make sure all electrical disconnect switches are ON. latest available accessories for this unit. Start−Up and Performance Checklist Job Name Job no.

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