Operating Instructions

Index
Index-8 Siemens Building Technologies, Inc.
sequencing logic
in Application 2522....................................3-31
in Application 2523....................................3-46
in Application 2524....................................3-59
in Application 2526....................................3-73
SERIES OFF (Point 27).........................3-60, 4-3
SERIES ON (Point 26)...........................3-60, 4-3
setpoint . See flow setpoint, temperature setpoint
setpoint dial.....................................................1-4
failure code..................................................5-6
general information......................................4-2
in Application 2500......................................3-5
in Application 2501....................................3-15
in Application 2520......................................2-5
in Application 2521....................................2-14
in Application 2522....................................3-28
in Application 2523....................................3-43
in Application 2524....................................3-56
in Application 2526....................................3-70
troubleshooting........................... 5-6, 5-9, 5-13
SI units ..................G-4. See also point database
slave mode.................................. 2-21, 3-81, G-4
slope .....................G-4. See also point database
STAGE COUNT (Point 88) .............................4-7
STAGE MAX (Point 82) ..................................4-7
STAGE MIN (Point 83) ...................................4-7
STAGE TIME (Point 89)
definition......................................................4-7
in Application 2522....................................3-31
in Application 2524...........................3-59, 3-60
in Application 2526...........................3-73, 3-74
stages of electric reheat................................3-31
stand-alone control
general information...................... 2-2, 3-2, G-5
in Application 2500......................................3-6
in Application 2501....................................3-16
in Application 2520......................................2-5
in Application 2521....................................2-14
in Application 2522....................................3-28
in Application 2523....................................3-43
in Application 2524....................................3-56
in Application 2526....................................3-70
STPT DIAL (Point 14)
definition......................................................4-2
in Application 2500......................................3-5
in Application 2501....................................3-15
in Application 2520......................................2-5
in Application 2521....................................2-14
in Application 2522....................................3-28
in Application 2523....................................3-43
in Application 2524....................................3-56
in Application 2526....................................3-70
supply air temperature
in Application 2501....................................3-16
in Application 2521....................................2-15
in Application 2522....................................3-29
in Application 2523....................................3-44
in Application 2524....................................3-57
in Application 2526....................................3-71
SUPPLY TEMP (Point 15)
definition......................................................4-2
in Application 2501....................................3-16
SUPPLY TEMP (Point 40)
definition......................................................4-4
in Application 2521....................................2-15
supply-duct temperature sensor1-4, 1-6, 3-16, 5-
13
switch
dry contact ..................................................1-3
override .............................See override switch
wall...........................................See wall switch
SWITCH DBAND (Point 90)
definition......................................................4-8
in Application 2522....................................3-29
in Application 2523....................................3-44
in Application 2524....................................3-57
in Application 2526....................................3-71
SWITCH LIMIT (Point 85)
definition......................................................4-7
in Application 2522....................................3-29
in Application 2523....................................3-44
in Application 2524....................................3-57
in Application 2526....................................3-71
SWITCH TIME (Point 86)
definition......................................................4-7
in Application 2522....................................3-29
in Application 2523....................................3-44
in Application 2524....................................3-57
in Application 2526....................................3-71
T
TEC.........................................................1-2, G-5
temperature
excessive swings ........................................ 3-8
loop ...................................... See control loops
room, actual .........................................4-1, 4-6
sensor ....See return-duct temperature sensor,
room temperature sensor, supply-duct
temperature sensor, thermistor
setpoint
active .......................................................4-8
general information..................................4-1
in Application 2500.................................. 3-5
in Application 2501................................ 3-15