Lenox Elite Series XP16 Units Heat Pumps, P506640-01 LOW Voltage Connections

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3LOW VOLTAGE CONNECTIONS

C

A	CUTOUT WITH
A	GROMMET
	24V CONTROL WIRES B

HIGH VOLTAGE FIELD WIRING

LOW VOLTAGE (24V) FIELD WIRING


		WIRE RUN LENGTH	AWG# INSULATION TYPE
		LESS THAN 100’ (30 METERS)	18	TEMPERATURE RATING
		MORE THAN 100’ (30 METERS)	16	35ºC MINIMUM.

NOTE − For proper voltages, select thermostat wire (control wires) gauge per table above.

NOTE − Do not bundle any excess 24VAC control wires inside control box.

ARun 24VAC control wires through cutout with grommet. B Run 24VAC control wires through wire tie.

C Make 24VAC control wire connections.

DTighten wire tie to security 24V control wiring.

NOTE − Wire tie provides low voltage wire strain relief and to maintain separation of field installed low and high voltage circuits.

DTIGHTEN WIRE TIE

Install low voltage wiring from outdoor to indoor unit and from thermostat to indoor unit as illustrated. See figures 14 and 15 for typical field connections when connecting unit to either a CBX32MV or CBX40UHV in non−communicating mode. For connections to other Lennox air handlers or furnaces, see the ComfortSense® 7000 installation instruction for further match component wiring illustrations.

4HIGH VOLTAGE POWER SUPPLY CONNECTIONS

OUTDOOR UNIT

CONTROL BOX

GROUND

NOTE − Any excess high voltage field wiring should be trimmed and secured away from any low voltage field wiring.

NOTE − To facilitate a conduit, a cutout is lo- cated in the bottom of the control box. Connect conduit to the control box using a proper con- duit fitting.

G

L1 L2

CONDUIT

CUTOUT

CONDUIT

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XP16 SERIES

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Contents Shipping and Packing List Table of ContentsGeneral XP16−024 Base Section XP16 Base with Legs Unit Dimensions − inches mmModel Number Identification Side ViewCaps and Fasteners Torque Requirements Typical Unit Parts ArrangementDetail a To Access Service Port Operating Ball−Type Service Valve Operating Gauge Set and Service ValvesOperating Service Valves Using Manifold Gauge SETMethod Method 2 Limitations Recovering Refrigerant from Existing System1DISCONNECT Power 3RECOVERING RefrigerantNew Outdoor Unit Placement Placement, Slab Mounting and Stabilizing Unit Detail a Outside Unit PlacementLouvered Panel Installation Removing and Installing PanelsLouvered Panel Removal Adding Polyol Ester OIL Requirements NEW or Replacement Line SET InstallationUsing Existing Line SET Line Set RequirementsRefrigerant Line SET Alling Horizontal Runs Refrigerant Line SET From Vertical to HorizontalBrazing Connections 1CUT and Debur Brazing Procedures7PREPARATION for Next Step Wrap Service ValvesFlow Nitrogen 6BRAZE Line SET2CONNECT Gauges and Equipment for Flushing Procedure Equalizer Line Installation Installing New Indoor Metering DeviceIndoor Expansion Valve Installation Sensing Bulb InstallationTest for Leaks S S S Evacuating Line Set and Indoor Coil24VAC Transformer Size Circuit and Install Disconnect2INSTALL Thermostat Electrical ConnectionsLOW Voltage Connections 4HIGH Voltage Power Supply ConnectionsTypical Field Wiring Typical Unit Wiring Diagram −024, −036 and −048 Only Typical Unit Wiring Diagram −060 Only Unit START−UP Unit Start−UpConnect Manifold Gauge SET and Weigh in Charge Leak CHECK, Repair and EvacuateCalculating System Charge for Outdoor Unit Void of Charge Indoor Unit Connections for Optimizing System ChargeAdjusting Indoor Airflow Optimizing ProcedureOptimizing System Refrigerant Charge LIQº SATºSCº = XP16−048−230 XP16−036−230XP16−060−230 Normal Operating Pressures Temperature PressuresUnit Components System Operation24VAC DelayDS2 Green LED FAN TWO Connectors TestOFF Demand Defrost Control A108 Diagnostic LedsDS2 DS1 SlowSECOND−STAGE Operation Defrost System Overview Defrost Control CONNECTIONS, Jumpers Settings and FeaturesDefrost System Emergency Heat Amber LightOperational Mode Overview Compressor Delay Mode P5Defrost Cycle Actuation HOW did Defrost TERMINATE? Demand Mode Thirty 30 Minute TimeTemperature Mode TIME/TEMPERATURE Mode DefrostDegrees Resistance Fahrenheit 136.3 2680 High Discharge Sensor RT28 Temperature / Resistance Range S S Test Pin P1 FunctionsTools Required MaintenanceProcedure Two−Stage Modulation Compressors ChecksHomeowner Pressures TemperatureCompressor Outdoor Unit FAN MotorXP16 Start−Up and Performance Cooling ModeStart UP Checks