Lenox Elite Series XP16 Units Heat Pumps XP16 Start−Up and Performance, Start UP Checks

Page 43

XP16 Start−Up and Performance

Customer

 

Address

 

 

Indoor Unit Model

 

 

Serial

 

 

 

 

 

 

 

 

 

Outdoor Unit Model

 

 

Serial

Notes:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START UP CHECKS

Refrigerant Type:

 

 

 

 

 

 

 

 

 

 

 

1st Stage: Rated Load Amps

 

Actual Amps

 

 

Rated Volts

 

Actual Volts

 

2nd Stage: Rated Load Amps

 

Actual Amps

 

 

Rated Volts

 

Actual Volts

 

Outdoor Unit Fan Full Load Amps

 

 

Actual Amps:

1st Stage

 

 

2nd Stage

 

COOLING MODE

Suction Pressure: 1st Stage:

 

2nd Stage:

Liquid Pressure: 1st Stage:

 

2nd Stage:

Supply Air Temperature: 1st Stage:

 

2nd Stage:

Temperature: Ambient:

 

Return Air:

System Refrigerant Charge (Refer to manufacturer’s information on unit or installation instructions for required subcooling and approach tempera- tures.)

Subcooling:

A

B

SUBCOOLING

Saturated Condensing Temperature (A) minus Liquid

 

 

=

 

 

 

Line Temperature (B)

 

 

 

 

 

 

 

Approach:

A

B

APPROACH

Liquid Line Temperature (A) minus Outdoor Air

 

 

=

 

 

 

Temperature (B)

 

 

 

 

 

 

 

Indoor Coil Temperature Drop (18 to 22°F)

A

B

COIL TEMP DROP

Return Air Temperature (A) minus Supply Air

 

 

=

 

 

 

Temperature (B)

 

 

 

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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