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E2015 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
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 Len
nox XP14 Product Specifications bulletin (EHB) for ap
proved indoor component match ups.
These instructions are intended as a general guide and
do not supersede local codes in any way. Consult authori
ties having jurisdiction before installation.
CAUTION
Before attempting to perform any service or mainte
nance, turn the electrical power to unit OFF at discon
nect switch.
STEP 1 -- SETTING THE UNIT -- Clearances
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See NOTES
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See
NOTES
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Í Í Í Í Í Í Í Í Í Í Í Í Í
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See NOTES
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NOTES:
Service clearance of 30 in. (762 mm) 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 (914 mm).
See
Clearance to one of the remaining two sides may be 12 in. (305mm)
NOTES
and the final side may be 6 in.(152 mm).
A clearance of 24 in. (610 mm) must be maintained between two units.
48 in. (1219 mm) clearance required on top of unit.
Control
Box
FIGURE 1
Page 1
INSTALLATION
INSTRUCTIONS
Elite
Series XP14 Units
®
HEAT PUMP
507362-01
8/2015
Supersedes 7/2014
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal in
jury or loss of life.
Installation and service must be performed by a li
censed professional installer (or equivalent) or service
agency.
NOTICE !
Charging information is given on the charging pro
cedure sticker on the unit access panel. For more
in-depth information, consult the Installation and
Service Procedures manual, available as Corp.
0721-L7 on DaveNet or through the Technical Sup
port department at 800-453-6669.
Litho U.S.A.
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Table of Contents
Related Manuals for Lennox XP14-018-230
Summary of Contents for Lennox XP14-018-230
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Page 1: Installation Instructions
INSTALLATION INSTRUCTIONS E2015 Lennox Industries Inc. Dallas, Texas, USA Elite Series XP14 Units ® HEAT PUMP 507362-01 8/2015 Litho U.S.A. Supersedes 7/2014 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE WARNING GENERAL Improper installation, adjustment, alteration, service or This XP14 outdoor heat pump is designed for use with maintenance can cause property damage, personal in... -
Page 2: Step 1 -- Setting The Unit
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 39 (991) 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... - Page 3 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...
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Page 4: Step 2 -- Refrigerant Piping
Take care to empty all existing traps. Polyol WARNING ester (POE) oils are used in Lennox units charged with HFC-410A refrigerant. Residual mineral oil can Refrigerant can be harmful if it is inhaled. Refrigerant act as an insulator, preventing proper heat transfer. -
Page 5: Flushing Procedure
STEP 2 -- REFRIGERANT PIPING -- (Continued) 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 HOUSING VALVE... - 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 vapor and liquid line service 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 vapor valve stem port.
- Page 8 STEP 2 -- REFRIGERANT PIPING -- Installing Indoor Expansion Valve This outdoor unit is designed for use in systems that include an expansion valve metering device (purchased separately) at the indoor coil. See the XP14 Product Specifications bulletin (EHB) for approved expansion valve kit match-ups and application information.
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Page 9: Step 3 -- Leak Test And Evacuation
STEP 3 -- LEAK TEST AND EVACUATION LEAK TEST HIGH MANIFOLD GAUGE SET OUTDOOR UNIT TO VAPOR SERVICE VALVE NOTE - Position canister to deliver liquid refrigerant. NITROGEN HFC-410A CONNECT GAUGE SET A - Connect the high pressure hose of an HFC-410A manifold gauge set to the vapor valve service port. NOTE - Normally, the high pressure hose is connected to the liquid line port. - Page 10 STEP 3 -- LEAK TEST AND EVACUATION (Continued) EVACUATION HIGH CONNECT GAUGE SET NOTE - Remove cores from service valves (if not already done). A - Connect low side of manifold gauge set with 1/4 SAE in-line tee to vapor line service valve B - Connect high side of manifold gauge set to OUTDOOR MANIFOLD...
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Page 11: Disconnect Switch
STEP 4 -- ELECTRICAL -- Circuit Sizing and Wire Routing In the U.S.A., wiring must conform with current local codes WARNING and the current National Electric Code (NEC). In Canada, wiring must conform with current local codes and the cur Fire Hazard. - 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.
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Page 13: Step 5 -- Unit Start-Up
STEP 5 -- UNIT START-UP IMPORTANT IMPORTANT To prevent stripping of the various caps used, the appropriately sized wrench should be used and fitted If unit is equipped with a crankcase heater, it should be snugly over the cap before tightening. energized 24 hours before unit start-up to prevent compressor damage as a result of slugging. -
Page 14: Checking Refrigerant Charge
Checking Refrigerant Charge OPERATING ANGLE-TYPE SERVICE VALVE The XP14 unit is factory-charged with enough HFC-410A 1 - Remove stem cap with an appropriately sized wrench. refrigerant to accommodate a 15-foot length of refrigerant 2 - Use a service wrench with a hex-head extension (3/16” for liquid piping. - Page 15 Compressor Delay (P5) mode. The TEST mode will then be lockedout and no fur ther TEST mode operation will be executed until the The defrost control has a field-selectable function to re jumper on the TEST pins is removed and reapplied to the duce occasional sounds that may occur while the unit is applicable defrost termination pins.
- Page 16 NOTE - The filter and all access panels must be in place cessary. any time the unit is in operation. If you are unsure about the filter required for your system, call your Lennox dealer 4 - Inspect the condition of refrigerant piping and confirm for assistance.
- Page 17 check the condition of the insulation on the refrigerant Also, ensure that refrigerant pipes are not being af lines. Repair, correct, or replace as necessary. fected by indoor air contamination. Check condition of insulation on the refrigerant lines. Repair, correct, 5 - Test capacitor.
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Page 18: Start Up Checks
XP14 Start-Up and Performance Checklist Customer Address Indoor Unit Model Serial Outdoor Unit Model Serial Notes: START UP CHECKS Refrigerant Type: Rated Load Amps: Actual Amps Rated Volts Actual Volts Condenser Fan Full Load Amps Actual Amps: COOLING MODE Suction Pressure: Liquid Pressure: Supply Air Temperature: Ambient Temperature: Return Air: Temperature:...