Supply Air Temperature (Sat) Sensor; Outdoor Air Temperature (Oat) Sensor - Bryant 581J series Installation Instructions Manual

BACnet OBJECT
POINT NAME
Space Temp / Zone Temp
Supply Air Temperature
Outside Air Temperature
Space Temperature Offset Pot stpt_adj_offset
Safety Chain Feedback
(1)
Compressor Safety Status
Fire Shutdown Status firedown_status
Enthalpy Status enthalpy_status
Humidistat Input Status humstat_status
Zone Temperature
Indoor Air CO2
Outdoor Air CO2
Space Relative Humidity
(2)
Supply Fan Status
(2)
Filter Status
(2)
Door Contact door_contact_status
(2)
Remote Occupancy input occ_contact_status
(2)
IGC input
Economizer Output
Supply Fan VFD
Supply Fan Relay
Cool 1 Relay State
Cool 2 Relay State
Cool 3 Relay State
Heat 1 Relay State
Heat 2 Relay State
Power Exhaust Relay State
Dehumidification Relay
LEGEND
AI - Analog Input
AO - Analog Output
BI - Binary Input
BO - Binary Output
(1)
Safety Chain Feedback: 24Vac required at this terminal to provide "Run Enable" status. See Input/Output section for additional instructions.
(2)
These inputs are configurable. If installed, they take the place of the default input on the specific channel. See appropriate Input Configuration Section for wiring and setup instructions.
(3)
Parallel pins J5-1 = J2-6, J5-3 = J1-10, J5-5 = J1-2 are used for field installation.
(4)
Refer to the input configuration and accessory sections of the Factory Installed Option RTU Open Controls, Start-Up, Operation and Troubleshooting manual for more detail.
The RTU Open controller requires the use of a Bryant
space sensor. A standard thermostat cannot be used with
the RTU Open system.
Supply Air Temperature (SAT) Sensor —
On FIOP−equipped 581J unit, the unit is supplied with a
supply−air temperature (SAT) sensor (33ZCSENSAT). This
sensor is a tubular probe type, approx 6−inches (152 mm) in
length. It is a nominal 10−k ohm thermistor.
The SAT is factory−wired. The SAT probe is wire−tied to
the supply−air opening (on the horizontal opening end) in
its shipping position. Remove the sensor for installation.
Re−position the sensor in the flange of the supply−air
opening or in the supply air duct (as required by local
1
codes). Drill or punch a /
2
Use two field−supplied, self−drilling screws to secure the
sensor probe in a horizontal orientation. See Fig. 38.
Outdoor Air Temperature (OAT) Sensor —
The OAT is factory−mounted in the EconoMi$er2 (FIOP
or accessory). It is a nominal 10k ohm thermistor attached
to an eyelet mounting ring.
Table 6 – RTU Open Controller Inputs and Outputs
TYPE OF I/O
NAME
DEDICATED INPUTS
zone_temp AI (10K Thermistor)
sa_temp AI (10K Thermistor)
oa_temp AI (10K Thermistor)
AI (100K Potentiometer)
safety_status BI (24 VAC)
comp_status BI (24 VAC)
BI (24 VAC)
BI (24 VAC)
BI (24 VAC)
n/a n/a
CONFIGURABLE INPUTS
iaq AI (4-20 mA)
oaq AI (4-20 mA)
space_rh AI (4-20 mA)
sfan_status BI (24 VAC)
filter_status BI (24 VAC)
BI (24 VAC)
BI (24 VAC)
igcovr_status BI (24 VAC)
econ_output AO (4-20mA)
vfd_output AO (2-10Vdc)
sfan BO Relay (24VAC, 1A)
comp_1 BO Relay (24VAC, 1A)
comp_2 BO Relay (24VAC, 1A)
comp_3 BO Relay (24VAC, 1A)
heat_1 BO Relay (24VAC, 1A)
heat_2 BO Relay (24VAC, 1A)
pexh BO Relay (24VAC, 1A)
dehum BO Relay (24VAC, 1A)
−in. hole in the flange or duct.
CONNECTION PIN
CHANNEL DESIGNATION
NUMBER(S)
J20-1 & 2 Analog Input 10
J2-1 & 2 Analog Input 6
J2-3 & 4 Analog Input 7
J20-3 & 4 Analog Input 11
J1-9 Binary Input 4
J1-2 Binary Input 3
J1-10 Binary Input 5
J2-6 & 7 Binary Input 8
J5-7 & 8 Binary Input 9
J13-1-4 Rnet
(4)
Analog Input 2
J4-2 & 3 or J4-5 & 6 Analog Input 1
Analog Input 10
Binary Input 3, 5, 8, or 9, except where intrinsic input is used
Binary Input 3, 5, 8, or 9, except where intrinsic input is used
J5-1 & 2 or J5-3 & 4,
Binary Input 3, 5, 8, or 9, except where intrinsic input is used
(3)
J5-5 & 6 or J5-7 & 8
Binary Input 3, 5, 8, or 9, except where intrinsic input is used
Binary Input 9. Mandatory input on gas heat units.
OUTPUTS
J2-5 Analog Output 1
J22-1 & 2 Analog Output 2
J1-4 Binary Output 1 (G)
J1-8 Binary Output 5 (Y1)
J1-7 Binary Output 4 (Y2)
J11-5 & 6 Binary Output 7 (Y3)
J1-6 Binary Output 3 (W1)
J1-5 Binary Output 2 (W2)
J11-2 & 3 (N.O.) Binary Output 8 (PE)
J11-7 & 8 (N.O.) Binary Output 6
SUPPLY AIR
TEMPERATURE
SENSOR
SUPPLY AIR
Fig. 38 − Typical Mounting Location for Supply Air
Temperature (SAT) Sensor on Small Rooftop Units
27
ROOF
CURB
RETURN AIR
C08200