Wiring - TCS Basys Controls SZ2165 Product Manual

Wiring

The SZ2165 terminal designations are shown below.
Remote SenSoR WiRing
The SZ2165 accepts six 1000 Ω two-wire platinum sensors. Consult
the TS Series Temperature Sensor submittal datasheet for a com-
plete listing of packaging and application styles. When using TCS
Basys Controls three-wire sensors, use the black and red leads, and
either clip or twist off the white lead. The wiring length should not
exceed 250 feet.
2
-
PA
6
VA
6
4
4
4
4
4
XMTR 7
1
2
3
4
5
External relay. 24 VAC Coil
2800 LAURA LANE • MIDDLETON, WI 53562 • (800) 288-9383 • FAX (608) 836-9044 • www.tcsbasys.com
24
VAC
GND
ANALOG
8
OUTPUTS
GND
AO1
MIXING VALVE
AO2
PUMP
8
DIGITAL
INPUTS
GND
DI1
BOILER PUMP1
DI2
BOILER PUMP2
GND
DI3
OVERRIDE
DI4 BOILER/
CHILLER
GND
DI5
CHILLER PUMP
ANALOG
+P INPUTS
AI1
PRESSURE
TEMPERATURE INPUTS
HOT WATER
RETURN
SUPPLY
T T T
1 1 2
3
For communication wiring, use twisted, shielded 22
AWG. Must be run separately.
24 VAC transformer. See powering instructions.
Sensor input wiring 18 AWG, twisted, shielded pair.
Dry contact. Must not be powered.
PoWeRing the SZ2165
The SZ2165 is powered from 24 VAC +/- 20 %. If wiring for com-
munications, dedicated power must be used to power the SZ2165.
Several S-series controllers may be powered from the same trans-
former, provided that the transformer has enough power.
Caution: Do not connect to 120VAC. When multiple TCS/Basys
Controls devices are using a single transformer, the polar-
ity of the power wiring must be maintained because all
TCS devices are half-wave rectified and have common
return paths.
SZ2165
BOILER CONTROLLER
DIGITAL
POWER
OUTPUTS
BOILER1
POWER
BOILER1
BOILER2
BOILER2
BOILER3
BOILER3
BOILER4
BOILER PUMP1
BOILER4
BOILER PUMP2
CHILLER1/ENA
CHILLER2
BOILER PUMP1
ALARM
BOILER PUMP2
CHILLER1/
ENABLE
CHILLER2
OVERRIDE
ALARM
OCC SERVICE DATA
KBPS
tm 4.8
S U P e R t R o L
9.6
19.2
CHILLED WATER
MIXED
OUTDOOR
RETURN WATER
SUPPLY
T T T T T T T T
T
3 3 4 4 5 5 6 6
2
3 3 3 3 3
4 to 20 mA output. 600 ohm max. Do not power
actuator with power from the controller. The
6
controllers are half-wave rectified, whereby the
power ground is common with the signal ground.
2-wire, 4 to 20 mA transmitter.Sensor input
7
wiring 18 AWG, twisted, shielded pair.
Add 500 ohm resistor (included in bag) to
8
convert 0/4 to 20mA to, 0/2 to 10 VDC.
R
2
COM
NO1
COM
R
NO2
COM
NO3
R
COM
NO4
R
COM
NO5
NO6
R
COM
NO7
NO8
R
COM
NO9
R
R
A
R
B
REF
R
B
2
5
5
5
5
5
5
5
5
5
A
ReF
1