York B1CH240 User Manuals

Table of Contents

• General

  1
• Inspection

  1
• Normal Maintenance

  18
• Reference

  1
• Approvals

  1
• Nomenclature

  2
• Unit Application Data

  3
• Control Wire Sizes

  5
• Limitations

  3
• Electric Heat Application Data

  5
• Location

  3
• Physical Data

  8
• Rigging and Handling

  3
• Four and Six Point Loads

  10
• Clearances

  3
• Supply Air Blower Perf. 15 Ton

  12
• Ductwork

  3
• Supply Air Blower Perf. 20 Ton

  12
• Fixed Outdoor Air Intake Damper

  4
• Static Resistances

  13
• Power Exhaust Performance

  13
• Condensate Drain

  4
• Blower Motor and Drive Data

  13
• Compressors

  4
• Electrical Data (Basic Units)

  14
• Filters

  4
• Electrical Data (Units w/Elec. Heat)

  14
• Service Access

  4
• Heat Anticipator Setpoints

  16
• Thermostat

  4
• Power and Control Wiring

  4
• Optional Electric Heaters

  5
• Optional Economizer/Mot. Damper Rain Hood

  5
• Optional Power Exhaust Rain Hood

  7
• Typical Rigging

  3
• Center of Gravity

  3
• 3 Fixed Outdoor Air Damper

  4
• Cooling System

  15
• Recommended Drain Piping

  4
• Typical Field Wiring

  5
• Preliminary Operation Cooling

  15
• Adjusting Enthalpy Setpoint

  7
• Cooling Sequence of Operation

  15
• Dimensions and Clearances

  9
• Heating Sequence of Operation

  15
• Four and Six Point Loads

  10
• Heat Anticipator Setpoints

  16
• Belt Adjustment

  16
• Checking Supply Air CFM

  16
• Pressure Drop versus Supply Air CFM

  16
• Defrost Sequence of Operation

  17
• Defrost Initiation Times

  17
• Secure Owner’s Approval

  18
• Ambient Modified Time/Temp. Control

  18