Carrier WeatherExpert Puron 50JC04, Руководство по установке

Страница: 19 / 28

19
Fig. 33 — Space Temperature Sensor Typical Wiring
(33ZCT59SPT)
ZS Space Sensors
The ZS Standard, Plus, or Pro can be wired into J20 or J24 of
the SystemVu controller. J20 provides an easy field connection
plug. A maximum of 5 ZS sensors can be connected but a sep -
arate power supply may be needed. Use the ZS SENSOR CFG
menu ( SETTINGS  NETWORK SETTINGS ) when setting
up the ZS sensors in SystemVu. The Sensor addresses have to
be unique and set in the actual sensors via DIP also. The Typi -
cal default for the ZS Sensor is address 1. Follow the ZS instal -
lation instruction for further details on the sensors. ZS sensor
data can be monitored on the SystemVu controller display in
the ZS Sensor Info menu ( INPUTS  NETWORK 
ZS SENSOR INFO ).
NOTE: Additional ZS sensors must be addressed. Use the jump -
ers on the ZS sensor's circuit board and refer to the sensor installa -
tion instructions for addressing.
For Rnet wiring up to 500ft (152m), use 18 AWG 4 conductor
unshielded plenum rated cable. The SystemVu controller
J20 - RNET connection has a 4 pin PCB connector. Fig. 34
shows sensor Rnet wiring.
J20-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sensor Common
J20-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sensor Positive (+)
J20-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sensor Negative (-)
J20-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . 12vdc Power
THERMOSTAT
Select a Carrier-approved accessory thermostat. When electric
heat is installed in the 50JC unit, the thermostat must be capa -
ble of energizing the G terminal (to energize the Indoor Fan
Contactor) whenever there is a space call for heat (energizing
the W1 terminal). The accessory thermostats listed on the unit
price pages can provide this signal but they are not configured
to enable this signal as shipped.
Install the accessory thermostat according to installation in -
structions included with the accessory.
Fig. 34 — Typical Rnet Communication Sensor
Wiring
Locate the thermostat accessory on a solid wall in the condi -
tioned space to sense average temperature in accordance with
the thermostat installation instructions.
If the thermostat contains a logic circuit requiring 24-v power,
use a thermostat cable or equivalent single leads of different col -
ors with minimum of seven leads. If the thermostat does not re -
quire a 24-v source (no “C” connection required), use a thermo -
stat cable or equivalent with minimum of six leads. See Fig. 35.
Check the thermostat installation instructions for additional fea -
tures which might require additional conductors in the cable.
Fig. 35 — Low-Voltage Thermostat Connections
OR SET SEN
OPB COM- PWR+
BLU (SPT)
BLK (STO)
24 VAC
SENSOR
WIRING
POWER
WIRING
BRN (COM)
NOTE: Must use a separate isolated transformer.
J20-3
J20-2
J20-1
+12V
Rnet‒ Rnet+
Gnd
NOTE S :
1. Typical multi-function marking. Follow manufacturer’s configuration
instructions to select Y2.
2. Y2 to Y2 connection required on single-stage cooling units when
integrated economizer function is desired.
3 . W2 connection not required on units with single-stage heating.
Field Wiring
W2
W2
W1
C
W1
C
Y1 Y1
Y 3
Y 3
G G
S ystemVu
Main Base Board
TB1
Typical
Thermostat
Connections
R R
O/B/Y2
Y2
(Note 1) (Note 2)
(Note 2)