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E2011 Lennox Industries Inc.
Dallas, Texas, USA
These instructions are intended as a
general guide and do not supersede
local codes in any way. Consult
authorities having jurisdiction before
installation.
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
NOTICE TO INSTALLER
BRAZING LINE SET TO SERVICE VALVES
It is imperative to follow the brazing technique illustrated starting on
page 12 to avoid damaging the service valve's internal seals.
WARNING
Improper installation, adjustment, alteration, 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.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HFCs, and HCFCs) as of July 1,
1992. Approved methods of recovery, recycling or
reclaiming must be followed. Fines and/or incarceration
may be levied for noncompliance.
IMPORTANT
This unit must be matched with an indoor coil as
specified in Lennox' Engineering Handbook. Coils
previously charged with HCFC−22 must be flushed.
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.
06/11
*2P0611*
INSTALLATION
INSTRUCTIONS
®
Elite
Series XP13 Units
HEAT PUMPS
506728−01
06/11
Supersedes 04/11
TABLE OF CONTENTS
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Servicing and Weighing In Refrigerant for Units
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 XP13 outdoor unit
General
The XP13 outdoor unit uses HFC−410A refrigerant. This
unit must be installed with a matching indoor blower coil
and line set as outlined in the XP13 Engineering
Handbook. These outdoor units are designed for use in
check / expansion valve (CTXV) systems only and are not
to be used with other refrigerant flow control devices. An
indoor coil check / expansion valve approved for use with
HFC−410A must be ordered separately and installed prior
to operating the unit.
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506728−01
*P506728-01*
Litho U.S.A.
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Table of Contents
Related Manuals for Lennox Elite XP13-030-230
Summary of Contents for Lennox Elite XP13-030-230
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Page 1: Table Of Contents
This unit must be matched with an indoor coil as Assembled XP13 outdoor unit specified in Lennox’ Engineering Handbook. Coils General previously charged with HCFC−22 must be flushed. The XP13 outdoor unit uses HFC−410A refrigerant. This... -
Page 2: Model Number Identification
Model Number Identification −0 − − P 13 036 Refrigerant Type Minor Revision Number X = HFC−410A Voltage 230 = 208/230V−1ph−60hz Unit Type P = Heat Pump Outdoor Unit Nominal Cooling Capacity 018 = 1.5 tons Series 024 = 2 tons 030 = 2.5 tons 036 = 3 tons 042 = 3.5 tons... -
Page 3: Unit Parts Arrangement
Typical Unit Parts Arrangement CONTROL PANEL CAPACITOR (C12) CONTACTOR− DEFROST CONTROL 1POLE (K1−1) (CMC1) THERMAL PROTECTION SWITCH (S173) GROUND SWITCH COVER ONLY ON UNITS USING EXTERNAL SWITCH COMPRESSOR MUFFLER 5−TON UNIT EXAMPLED HERE DEFROST TRUE SUCTION THERMOSTAT (S6) PORT CHECK EXPANSION VALVE REVERSING VALVE... -
Page 4: Caps And Fasteners Torque Requirements
Each valve is equipped with a service port which has a recess. factory−installed valve core. Figure 2 provides information on how to access and operate both angle− and ball−type See the Lennox Service and Application Notes service valves. Corp.0807−L5 (C−08−1) - Page 5 Operating Angle−Type Service Valve: 1. Remove stem cap with an appropriately sized wrench. INSERT HEX−HEAD 2. Use a service wrench with a hex−head extension (3/16" for liquid line valve sizes and 5/16" EXTENSION HERE for vapor line valve sizes) to back the stem out counterclockwise as far as it will go to open the service valve.
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Page 6: Recovering Refrigerant From Existing System
Recovering Refrigerant from Existing System CONNECT MANIFOLD GAUGE SET DISCONNECT POWER Connect a manifold gauge set, clean recovery cylinder and a Disconnect all power to the existing outdoor unit at the disconnect recovery machine to the service ports of the existing unit.. switch and/or main fuse box/breaker panel. -
Page 7: New Outdoor Unit Placement
New Outdoor Unit Placement higher ground will not collect around the unit. The slab CAUTION should have a slope tolerance as described in figure 5, detail B. In order to avoid injury, take proper precaution when lift- NOTE If necessary for stability, anchor unit to slab as ing heavy objects. - Page 8 DETAIL A Outside Unit Placement DETAIL B Slab Mounting at Ground Level Install unit away from windows. Install unit level or, if on a slope, maintain slope tolerance of two (2) degrees (or two inches per five feet [50 mm per 1.5 m]) away from building structure.
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Page 9: Removing And Installing Panels
Removing and Installing Panels LOUVERED PANEL REMOVAL IMPORTANT! DO NOT ALLOW PANELS TO HANG ON UNIT BY TOP TAB. TAB IS FOR Remove the louvered panels as follows: ALIGNMENT AND NOT DESIGNED TO SUPPORT WEIGHT OF PANEL. 1. Remove two screws, allowing the panel to swing open PANEL SHOWN SLIGHTLY ROTATED TO ALLOW TOP TAB TO EXIT (OR slightly. -
Page 10: Line Set Requirements
Field refrigerant piping consists of both liquid and vapor outlined under Flushing Line Set and Indoor Coil on page lines from the outdoor unit to the indoor coil. Use Lennox L15 (sweat, non−flare) series line set, or field−fabricated refrigerant line sizes as specified in table 2. - Page 11 Line Set Isolation The following illustrations are examples of proper refrigerant line set isolation: REFRIGERANT LINE SET INSTALLING REFRIGERANT LINE SET TRANSITION VERTICAL RUNS (NEW CONSTRUCTION SHOWN) FROM VERTICAL TO HORIZONTAL NOTE Insulate liquid line when it is routed through areas where the surrounding ambient temperature could become higher than the temperature of the liquid line or when pressure drop is equal to or greater ANCHORED HEAVY NYLON...
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Page 12: Brazing Connections
Brazing Connections Use the procedures outline in figures 8 and 9 for brazing line set connections to service valves. WARNING IMPORTANT Polyol Ester (POE) oils used with HFC−410A Allow braze joint to cool before removing the wet rag refrigerant absorb moisture very quickly. It is very from the service valve. - Page 13 CAP AND CORE REMOVAL CUT AND DEBUR Cut ends of the refrigerant lines square (free from nicks or dents) Remove service cap and core from both the suction / vapor and and debur the ends. The pipe must remain round. Do not crimp end liquid line service ports.
- Page 14 WRAP SERVICE VALVES To help protect service valve seals during brazing, wrap water saturated cloths around service valve bodies and copper tube stubs. Use additional water saturated cloths underneath the valve body to protect the base paint. FLOW NITROGEN Flow regulated nitrogen (at 1 to 2 psig) through the refrigeration gauge set into the valve stem port connection on the liquid service valve and out of the suction / vapor valve stem port.
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Page 15: Indoor Refrigerant Metering Device Removal And Flushing Line Set And Indoor Coil
Indoor Refrigerant Metering Device Removal and Flushing Line Set and Indoor Coil Flushing is only required when the existing system used HCFC−22 refrigerant. If the existing system used HFC−410a, then remove the original indoor coil metering device and proceed to Installing New Indoor Metering Device on page 16. TYPICAL EXISTING FIXED ORIFICE TYPICAL EXISTING EXPANSION VALVE REMOVAL REMOVAL PROCEDURE (UNCASED... -
Page 16: Installing New Indoor Metering Device
See the Lennox XP13 Engineering Handbook for approved check / expansion valve kit match−ups. The check / expansion valve device can be installed either internal or external to the indoor coil. In applications where an uncased coil is being installed in a field−provided plenum, install the check / expansion valve in a manner that will provide access for field servicing... -
Page 17: Leak Test Line Set And Indoor Coil
Leak Test Line Set and Indoor Coil IMPORTANT Leak detector must be capable of sensing HFC refrigerant. CONNECT GAUGE SET Connect an HFC−410A manifold gauge set high pressure hose to the HIGH vapor valve service port. NOTE Normally, the high pressure hose is connected to the liquid MANIFOLD GAUGE SET line port. -
Page 18: Evacuating Line Set And Indoor Coil
Evacuating Line Set and Indoor Coil Evacuating the system of non−condensables is critical for proper operation of the unit. Non−condensables are defined as any gas that will not condense under temperatures and pressures present during operation of an air conditioning system. Non−condensables and water suction combine with refrigerant to produce substances that corrode copper piping and compressor parts. -
Page 19: Electrical Connections
Electrical IMPORTANT In the U.S.A., wiring must conform with current local codes Use a thermocouple or thermistor electronic vacuum and the current National Electric Code (NEC). In Canada, gauge that is calibrated in microns. Use an instrument wiring must conform with current local codes and the current capable of accurately measuring down to 50 microns. - Page 20 Figure 14. Typical Unit Wiring Diagram Page 20 506728−01...
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Page 21: Unit Start−Up
Figure 15. Typical Factory Wiring have consulted with the power company and the Unit Start−Up voltage condition has been corrected. 6. Open both the liquid and vapor line service valves to IMPORTANT release the refrigerant charge contained in outdoor unit into the system. If unit is equipped with a crankcase heater, it should be 7. -
Page 22: Delivered Void Of Charge
Service and Weigh In Refrigerant for Outdoor Units Delivered Void of Charge The following procedures are only required if it has been determine that the new outdoor unit is void of charge. Skip to the next section if refrigerant charge is present. LEAK CHECK, REPAIR AND EVACUATE 1. - Page 23 WEIGH−IN CHARGING CALCULATING SYSTEM CHARGE FOR OUTDOOR UNIT VOID OF CHARGE If the system is void of refrigerant, first, locate and repair any leaks and then weigh in the refrigerant charge into the unit. To calculate the total refriger- ant charge: Additional charge specified per match indoor air handler or coil Adjust amount.
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Page 24: Optimizing System Refrigerant Charge
Optimizing System Refrigerant Charge This section provides instructions on optimizing the efficiency. Make any air flow adjustments before system charge. This section includes: continuing with the optimizing procedure. Optimizing procedure 5. Use subcooling method to optimize the system Adjusting indoor airflow charge (see figure 21). - Page 25 OPTIMIZE CHARGE USING SUBCOOLING 1. Check liquid and vapor line pressures. Compare pressures with either second−stage heat or cooling mode normal operating pressures listed in table 4. Table 4 is a general guide and expect minor pressures variations. Significant pressure differences may indicate improper charge or other system problem.
- Page 26 APPROVED MATCHED SYSTEM COMPONENTS, TARGETED SUBCOOLING (SC) VALUES AND ADD CHARGE VALUES Listed below are the approved matched system Subcooling values listed in the following tables are based components (air handlers and indoor coils), targeted on outdoor ambient air temperature of: subcooling and add charge values for the XP13.
- Page 27 Liquid Pressure Model Heating Cooling Number ºF (ºC)* (−7) (−1) (4.5) (10) (16) (18) (21) (24) (27) (29) (32) (35) (38) (41) (43) (45) 13HPX−018 13HPX−024 13HPX−030 13HPX−036 13HPX−042 13HPX−048 13HPX−060 *Temperature of the air entering the outside coil. Table 5. HFC−410A Temperature (°F) − Pressure (Psig) °F °C Psig...
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Page 28: System Operation
Bi−Flow Liquid Line Filter Drier System Operation The unit is equipped with a large−capacity biflow filter drier which keeps the system clean and dry. If replacement is IMPORTANT necessary, order another of the same design and capacity. The replacement filter drier must be suitable for use with HFC−410A refrigerant. - Page 29 Compressor Delay (P5) power-up, the defrost control will ignore the test pins. When the jumper is placed across the TEST pins for two The defrost control has a field−selectable function to seconds, the defrost control will enter the defrost mode. If reduce occasional sounds that may occur while the unit is the jumper is removed before an additional 5−second cycling in and out of the defrost mode.
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Page 30: Maintenance (Dealer And Homeowner)
1. Air Filter Ask your Lennox dealer to show you the unit including the outdoor coil. Consult your where your indoor unit’s filter is located. It will be either... - Page 31 HEAT setting Heat Pump Operation and normal heat pump operation may resume. Your new Lennox heat pump has several characteristics that you should be aware of: Preservice Check Heat pumps satisfy heating demand by delivering If your system fails to operate, check the following before large amounts of warm air into the living space.
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Page 32: Start−Up And Performance Checklist
Start−Up and Performance Checklist Job Name Job no. Date Job Location City State Installer City State Unit Model No. Serial No. Service Technician Nameplate Voltage Rated Load Ampacity Compressor Amperage: Maximum Fuse or Circuit Breaker Electrical Connections Tight? - Indoor Filter clean? - Supply Voltage (Unit Off) Indoor Blower RPM S.P.