Setup; Programming - TCS Basys Controls SZ1025b Product Manual

Setup

PRESSURE CONNECTIONS
For pressure indepen-
dent applications, the
SZ1025b provides a
velocity pressure trans-
ducer. To utilize this,
connect the high port
on the SZ1025b to the
air flow measuring sta-
tion port or pitot tube
port that faces the flow.
Connect the low port on
the SZ1025b to the air
flow measuring station
port or pitot tube port
that faces away from
the flow.
USING TRI-STATE ACTUATORS
If using tri-state instead of 4 to 20 mA, actuators a QE25
transducer is available. To connect the QE25 to the
SZ1025b, use the ribbon connector included with the
QE25 as shown, in the wiring section.

Programming

The SZ1025b may be programmed through the display
and keypad, or with a PC.
If programming with a PC, the following must be set
through the keypad prior to programming:
• Address (step #2)
• Baud rate (step #3)
For more information on programming through the PC,
consult your TCS software manual.
Programming through the Keypad
To access the programming screens, press both the
"Scroll" and "Next" keys simultaneously.
Scroll Key - The "Scroll" key is also used
to save any changes to the "current" screen
and advance to the next screen while pro-
gramming. The "Scroll" key is used to enter
the Programming Mode when pressed with
the "Next" key.
Next Key - Used to enter Programming Mode
when pressed with the "Scroll" key. Also used
to move from the ones, to the tens, hundreds
decimal point and to exit programming with out
saving changes to the current screen.
Increment/Decrement Keys - Used to select
the desired value.
2800 LAURA LANE • MIDDLETON, WI 53562 • (800) 288-9383 • FAX (608) 836-9044 • www.tcsbasys.com
SZ1025B
VAV CONTROLLER
QE25
POWER CW1
FLOATING
CCW1
POINT
CONTROL
CW2
CCW2
HIGH PRESSURE
DIGITAL ANALOG
LOW PRESSURE
INPUTS OUTPUTS
DAMPER
VALVE
ANALOG DIGITAL
INPUTS OUTPUTS
REMOTE
SETPOINT
DATA
SHARED
TEMP
RS485
ANALOG DIGITAL SHARED
HIGH PRES-
TEMP TEMP TEMP
INPUTS INPUTS OUTPUTS
ZONE ZONE
LOW PRES-
T1 T1 T2 T2 T3+ T3- T4+ T4- TEMP REF
Zone temp
71F
+
1.
ENTER ACCESS
CODE 000
2.
SET ADDRESS:
000
3.
SET BAUD RATE:
9.6k
4.
TEMPS SHOWN IN:
FAHRENHEIT
5.
ENABLE SHARED
TEMP INPUT? NO
6.
ZONE T. CAL
90F 0.0F
7.
SUP. T. CAL
150F 0.0F
8.
PRESS CAL
0.00WCD 0.000 W
9.
SETPOINT LOW
LIMIT: 40.0F
R
3
Main Monitoring Screen. Press the
scroll and next buttons to access the
following screens.
Access Code Entry Screen. Enter
the access code. If the wrong code is
entered, the prorm reverts to the main
screen. 248 is the default access cose.
Controller Address Screen. If using a
PC to access the SZ1025b, set a unique
address from 0 to 255, excluding 248.
Communication Baud Rate Screen. If
using a PC to access the SZ1025b, all
contollers on a network must be set to the
same baud rate. Choose between 2.4K,
4.8K, 9.6K and 19.2K.
Temperature Selection Screen.
Select whether youwant to show Deg.
Fahrenheit or Celsias.
Shared Temperature Enable Screen.
Sharing zone temperature with another
SZ1025b (2 max.) Select YES if not
select NO.
Zone Temperature Calibration Screen.
Enter a calibration factor (+/- 25°F) for
zone temperature Input. The temperature
displayed on the left is the actual tem-
perature.
Supply Temperature Calibration
Screen. Enter a calibration factor (+/-
50°F) for supply temp Input. The tem-
perature displayed on the left is the actual
temperature.
Pressure Calibration Screen. Enter a
calibration factor (+/- 0.50WCD) for
pressure. The value of the left is the
actual value.
Setpoint Low Limit Value Screen. Enter
a setpoint low limit value. The setpoint
will not be allowed to be set lower than
this setting.