2800 LAURA LANE • MIDDLETON, WI 53562 • (800) 288-9383 • FAX (608) 836-9044 • www.tcsbasys.com
2
Wiring
The SZ1024 and SZ1033 use standard terminal desig-
nations for wiring. See diagram below.
REMOTE TEMPERATURE SENSOR WIRING
Use 18 AWG shielded twisted-pair grounded at the sen-
sor mounting location. Sensor wiring runs of up to 250
feet are attainable if properly shielded wire is used and
the installation environment is free of electrical noise.
Sensor wire should be kept at least five feet away from
line voltage wiring.
The SZ1024 accepts two remote temperature sensors
and the SZ1033 accepts three. Consult the TS3000
Series Remote Temperature Sensor Submittal Data
sheet for a complete listing of packaging and application
styles. When using TCS Basys Controls three-wire sen-
sors, use the black and red leads and either clip or twist
off the white lead. Make sure that the dip switches are
set for the sensors you are using.
POWERING THE SZ1024 and SZ1033
Superstats are powered from 24 VAC +/- 20%.
If wiring for communications, dedicated power must be
used to power the Superstat. Several “S” Series ther-
mostats may be powered from the same transformer,
provided that the transformer has sufficient power.
(Superstats require 8W @ 24 VAC.)
Caution:
Do not connect to 120 VAC. When multiple
TCS Basys Controls devices are using a single
transformer, the polarity of the power wiring
must be maintained because all TCS devices
are half-wave rectified and have common return
paths.
When the Superstat is used as a stand-alone
thermostat without communications, the unit transformer
may be used to power it. To do this, install a jumper
between the “R” and “+24” terminals. The “24-” terminal
must then be connected to the common side of the unit
transformer.
1
For communication wiring, use twisted,
shielded
18
AWG. Must be run separately.
Dry momentary contact. Must not be powered.
Dry contact. Must NOT be powered.
*
Not available with the SZ1024.
2
24 VAC transformer.
See Powering Instructions.
3
4
Sensor input wiring
18
AWG, twisted,
shielded pair.
5
Up to nominal
28
VAC from equipment
transformer.
6
R W1 W2 Y1 Y2
B
or
O
Time Clock
Output
Packaged Heat Pump Terminations
3
4
4
G
4
Remote
Zone/Return
Air Temp.
5
5
5
Outside
Air Temp.
Discharg
e
Air Temp.
R W1 W2 Y1 Y2 G B/O A2 A1
2
*
When multiple TCS devices are
using a single transformer, the
polarity of the power wiring must
be maintained because all TCS
devices are half-wave rectified
and have common return paths.
!
!
6
R
EF
A
B
A
B
1
REF
R
