York YPAL 060 Table Of Contents, Variable Air Volume Vav, Condenser Fan Operation, Economizer

Models: YPAL 060 YPAL 051 YPAL 050 YPAL 061

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FORM 100.50-NOM6 (1207)

TABLE OF CONTENTS

 

Space Sensor – Hard Wired or Communicated

65

Cooling Operation – Occupied or Unoccupied

65

Heating Operation – Occupied or Unoccupied

66

Stand Alone

66

Cooling Operation – Occupied or Unoccupied

67

Heating Operation – Occupied or Unoccupied

67

VARIABLE AIR VOLUME (VAV)

68

Cooling - Occupied with Thermostat

68

Cooling – Unoccupied with Thermostat

69

Occupied or Unoccupied Heating with a Thermostat

69

Occupied Cooling with Hard Wired or Communicated Space Sensor

69

Cooling – Unoccupied with a Hard Wired or Communicated Space Sensor

70

Heating – Occupied with a Hard Wired or Communicated Space Sensor

70

Heating – Unoccupied with a Hard Wired or Communicated Space Sensor

70

Occupied Cooling – Stand Alone

71

Cooling – Unoccupied Stand Alone

72

Heating – Occupied Stand Alone

72

Heating – Unoccupied Stand Alone

72

CONDENSER FAN OPERATION

72

COOLING COMPRESSOR LOCKOUT

72

Sequence of Operation

72

LOW AMBIENT OPERATION

73

Operation and Pressure Control Range

73

Configuration (Jumpers and Potentiometers)

73

SUPPLY FAN OPERATION

74

Constant Volume (CV)

74

Variable Air Volume (VAV)

75

VAV Supply Fan Speed Control

76

ECONOMIZER

76

Dry Bulb

76

Single Enthalpy

77

Dual Enthalpy

77

BAS ECONOMIZER OPERATION

77

Sequence of Operation

78

Constant Volume Economizer Set Point

78

Variable Air Volume Economizer Set Point

78

Economizer / Compressor Operation

79

Economizer PI Loop (Proportional and Integral)

79

ECONOMIZER LOADING

79

Constant Volume

80

Variable Air Volume

80

JOHNSON CONTROLS

7

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York YPAL 060 Table Of Contents, Variable Air Volume Vav, Condenser Fan Operation, Cooling Compressor Lockout, Economizer