Lennox Elite Series Installation Instructions Manual
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Lennox Elite Series Installation Instructions Manual

Lennox Elite Series Installation Instructions Manual

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E2013 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
WARNING
The State of California has determined that this product
may contain or produce a chemical or chemicals, in very
low doses, which may cause serious illness or death. It
may also cause cancer, birth defects, or reproductive
harm.
General
This XP14 outdoor heat pump is designed for use with
HFC-410A refrigerant only. This unit must be installed with
an approved indoor air handler or coil. See the Lennox
XP14 Product Specifications bulletin (EHB) for approved
indoor component match ups.
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
STEP 1 -- SETTING THE UNIT -- Clearances
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See
NOTES
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See NOTES
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6/2013
*2P62013*
See NOTES
See
NOTES
Control
Box
INSTALLATION
INSTRUCTIONS
Elite
Series XP14 Units
®
HEAT PUMP
506772-01
6/2013
Supersedes 1/2013
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal inju­
ry or loss of life.
Installation and service must be performed by a licensed
professional installer (or equivalent) or service agency.
For more in-depth information, consult the Installa­
tion and Service Procedures manual, available as
Corp. 0721-L7 on DaveNet or through the Technical
Support department at 800-453-6669.
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment.
NOTES:
Service clearance of 30 in. must be maintained on one of the sides
adjacent to the control box.
Clearance to one of the other three sides must be 36 in.
Clearance to one of the remaining two sides may be 12 in. and the
final side may be 6 in..
A clearance of 24 in. must be maintained
between two units.
48 in. clearance required on top of unit.
FIGURE 1
Page 1
WARNING
NOTICE !
CAUTION
506772-01
*P506772-01*
Litho U.S.A.

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  • Page 1 This XP14 outdoor heat pump is designed for use with Support department at 800-453-6669. HFC-410A refrigerant only. This unit must be installed with an approved indoor air handler or coil. See the Lennox CAUTION XP14 Product Specifications bulletin (EHB) for approved indoor component match ups.

  • Page 2: Unit Dimensions - Inches (Mm)

    UNIT DIMENSIONS - INCHES (MM) LIQUID LINE CONNECTION ELECTRICAL INLETS SUCTION LINE CONNECTION 4-3/4” 4-1/2” (121) (108) TOP VIEW SIDE VIEW Model Number XP14-018-230 31 (787) XP14-024-230 39 (991) 30-1/2 (775) 35 (889) XP14-030-230 39 (991) XP14-036-230 35 (889) XP14-042-230 39 (991) XP14-048-230 39 (991)

  • Page 3: Slab Mounting

    IMPORTANT ! ELEVATED SLAB MOUNTING USING FEET EXTENDERS Exhaust vents from dryers, water heaters and Use additional 2” SCH 40 male furnaces should be directed away from the outdoor 2” (50.8MM) SCH 40 threaded adapters which can unit. Prolonged exposure to exhaust gases and the FEMALE THREADED be threaded into the female chemicals...
  • Page 4 Take care to empty all existing traps. Polyol es­ IMPORTANT ! ter (POE) oils are used in Lennox units charged with HFC-410A refrigerant. Residual mineral oil can act Some scroll compressors have an internal vacuum as an insulator, preventing proper heat transfer.
  • Page 5 STEP 2 -- REFRIGERANT PIPING -- Removing Existing Indoor Metering Device TYPICAL EXISTING FIXED ORIFICE TYPICAL EXISTING EXPANSION VALVE REMOVAL REMOVAL PROCEDURE PROCEDURE (UNCASED COIL SHOWN) (UNCASED COIL SHOWN) STUB END TWO-PIECE PATCH PLATE LIQUID LINE CHECK DISTRIBUTOR TUBES (UNCASED COIL ONLY) ORIFICE EXPANSION LIQUID LINE ORIFICE HOUSING...
  • Page 6 STEP 2 -- REFRIGERANT PIPING -- Brazing Procedures 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 and debur the ends. The pipe must remain round. Do not crimp end both the suction / vapor and liquid line of the line.
  • Page 7 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.

  • Page 8: Step 3 -- Installing Indoor Expansion Valve

    STEP 3 -- INSTALLING INDOOR EXPANSION VALVE This outdoor unit is designed for use in systems that include an check/expansion valve metering device. See the XP14 Product Specifications bulletin (EHB) for approved check/expansion valve kit match-ups and application information. The check/expansion valve can be installed internal or external to the indoor coil.

  • Page 9: Step 4 -- Leak Test And Evacuation

    STEP 4 -- LEAK TEST AND EVACUATION HIGH MANIFOLD GAUGE SET OUTDOOR UNIT TO VAPOR SERVICE VALVE NOTE - Position canister to deliver liquid refrigerant. NITROGEN HFC-410A CONNECT GAUGE SET Connect the high pressure hose of an HFC-410A manifold gauge set to the vapor valve service port. NOTE —...
  • Page 10 STEP 4 -- LEAK TEST AND EVACUATION (Continued) EVACUATION HIGH CONNECT GAUGE SET NOTE — Remove cores from service valves (if not already done). Connect low side of manifold gauge set with 1/4 SAE in-line tee to vapor line service valve Connect high side of manifold gauge set to OUTDOOR MANIFOLD...

  • Page 11: Install Thermostat

    STEP 5 -- ELECTRICAL -- Circuit Sizing and Wire Routing In the U.S.A., wiring must conform with current local codes IMPORTANT ! and the current National Electric Code (NEC). In Canada, wiring must conform with current local codes and the current If unit is equipped with a crankcase heater, it should Canadian Electrical Code (CEC).
  • Page 12 HIGH VOLTAGE FIELD WIRING Unit Low Voltage Wiring FACTORY WIRING LOW VOLTAGE (24V) FIELD WIRING WIRE RUN LENGTH AWG# INSULATION TYPE WIRE NUTS LESS THAN 100' (30 METERS) TEMPERATURE RATING MORE THAN 100' (30 METERS) 35ºC MINIMUM. Run 24VAC control wires through cutout with grommet. Run 24VAC control wires through wire tie.

  • Page 13: Defrost System

    If the timing selector jumper is missing, the defrost Charging control defaults to a 90-minute defrost interval. The XP14 unit is factory-charged with enough HFC-410A Compressor Delay (P5) refrigerant to accommodate a 15-foot length of refrigerant The defrost control has a field-selectable function to re­ piping.
  • Page 14 the unit will terminate defrost and return to heat mode. The Defrost Control Diagnostic LEDs TEST mode will then be locked­out and no further TEST The defrost board uses two LEDs for diagnostics. The mode operation will be executed until the jumper on the LEDs flash a specific sequence according to the condition.

  • Page 15: Homeowners Information

    — any time the unit is in operation. If you are unsure about the If your system fails to operate, check the following before filter required for your system, call your Lennox dealer for calling for service: assistance. Verify room thermostat settings are correct.

This manual is also suitable for:

Elite xp14

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