Lennox International Inc Merit Series Air Conditioner 13ACX Start-Up and Performance Checklist

Page 15

13ACX 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:

 

 

 

 

 

 

 

 

System Refrigerant Charge (Refer to manufacturer's information on unit or installation instructions for required

 

 

subcooling and approach temperatures.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 15

13ACX SERIES

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Page 14 Page 15
Contents Setting the Unit -- Clearances GeneralMinimum Clearance Between TWO Units Placement Setting the Unit CONTIN­ UED -- Unit PlacementUnit Dimensions Inches MM Unit DimensionsVertical Runs NEW Construction Shown InstallationRefrigerant Line SET Installing Refrigerant Line SET Installing Horizontal RunsLiquid Line Filter Drier Installation Typical Liquid Line Filter Drier InstallationRefrigerant Line SET Inches MM 2CONNECT Gauges and Equipment for Flushing Procedure 1CUT and Debur Refrigerant Piping -- Brazing Procedures7PREPARATION for Next Step Wrap Service ValvesFlow Nitrogen 6BRAZE Line SETEqualizer Line Installation Refrigerant Piping -- Installing Indoor Expansion ValveIndoor Expansion Valve Installation Sensing Bulb InstallationLeak Test Leak Test and EvacuationOpen both manifold valves and start the vacuum pump Evacuation24VAC Transformer Electrical -- Circuit Sizing and Wire RoutingSize Circuit and Install Service Disconnect Switch Install ThermostatOperating Manifold Gauge SET and Service Valves Electrical -- High Voltage and Field Control WiringRouting High VOLTAGE, Ground and Control Wiring High Voltage / Ground Wires Field Control WiringTorque Requirements Homeowners Information Checking and Adding System Refrigerant13ACX Start-Up and Performance Checklist Cooling ModeStart UP Checks
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