York 048 & 060 User Manuals

Table of Contents

• general

  4
• SAFETY CONSIDERATIONS

  4
• INSPECTION

  4
• REFERENCE

  4
• RENEWAL PARTS

  4
• APPROVALS

  4
• PRODUCT NOMENCLATURE

  5
• INSTALLATION

  5
• ELECTRIC HEAT

  10
• ECONOMIZER/MOTORIZED DAMPER AND RAIN HOOD

  11
• POWER EXHAUST/BAROMETRIC RELIEF DAMPER AND RAIN HOOD

  11
• MINIMUM POSITION ADJUSTMENT

  12
• ENTHALPY SET POINT ADJUSTMENT

  12
• POWER EXHAUST DAMPER SETPOINT (WITH OR WITHOUT POWER EXHAUST)

  12
• OPERATION

  27
• CONTINUOUS BLOWER

  27
• INTERMITTENT BLOWER

  28
• NO OUTDOOR AIR OPTIONS

  28
• ECONOMIZER WITH SINGLE ENTHALPY SENSOR -

  28
• ECONOMIZER WITH DUAL ENTHALPY SENSORS -

  28
• ECONOMIZER (SINGLE OR DUAL) WITH POWER EXHAUST -

  28
• MOTORIZED OUTDOOR AIR DAMPERS -

  28
• HIGH-PRESSURE LIMIT SWITCH

  28
• LOW-PRESSURE LIMIT SWITCH

  29
• FREEZESTAT

  29
• LOW AMBIENT COOLING

  29
• WITH OR WITHOUT ELECTRIC HEAT

  30
• DEFROST MODE

  30
• FORCED DEFROST

  30
• START-UP (COOLING)

  31
• TROUBLESHOOTING

  32
• MAINTENANCE

  34