Symbols - Honeywell AUTOMATIC CONTROL SI Edition Engineering Manual

AIR HANDLING SYSTEM CONTROL APPLICATIONS

SYMBOLS

The following symbols are used in the system schematics following. These symbols denote the nature of the device, such as a
thermometer for temperature sensing.
13
13
NORMAL
AUTO
ON
63
74
CONTROLLER, TEMPERATURE
SENSOR, TEMPERATURE
LOW LIMIT
HIGH LIMIT
MANUAL RESET NOTATION
INSERTION TEMPERATURE SENSOR
TEMPERATURE SENSOR,
AVERAGING
TEMPERATURE CONTROLLER,
MANUAL RESET, SAFETY LOW LIMIT
MANUAL MULTI-STATE
COMMAND (ON-OFF-AUTO)
STATUS POINT
VALUE POINT (% LOAD)
COMMANDABLE VALUE
3-WAY VALVE WITH ACTUATOR
2-WAY VALVE WITH ACTUATOR
DAMPER WITH ACTUATOR
208
FAN
PRESSURE CONTROLLER,
HIGH LIMIT CUT-OUT,
MANUAL RESET
PRESSURE SENSOR
0.45
COOLING COIL
HEATING COIL
FILTER
PUMP
SOLENOID VALVE
SMOKE DETECTOR
(NFPA SYMBOL)
PROPELLER EXHAUST FAN
ENGINEERING MANUAL OF AUTOMATIC CONTROL
M15150