Bryant 580J Series, Installation Instructions Manual

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Table 5 – RTU Open Controller Inputs and Outputs
POINT NAME04
BACnet OBJECT
NAME
TYPE OF I/O
CONNECTION PIN
NUMBER(S)
DEDICATED INPUTS
Space Temp / Zone Temp zone_temp AI (10K Thermistor) J20---1 & 2
Supply Air Temperature sa_temp AI (10K Thermistor) J2---1 & 2
Outdoor Air Temperature oa_temp AI (10K Thermistor) J2---3 & 4
Space Temperature Offset Pot stpt_adj_offset AI (100K Potentiometer) J20---3 & 4
Safety Chain Feedback safety_status DI (24 VAC) J1---9
Compressor Safety Status comp_status DI (24 VAC) J1---2
Fire Shutdown Status firedown_status DI (24 VAC) J1---10
Enthalpy Status enthalpy_status DI (24 VAC) J2---6 & 7
Humidistat Input Status humstat_status DI (24 VAC) J5---7 & 8
Zone Temperature n/a n/a J13---1, 2, 3, 4
CONFIGURABLE INPUTS
Indoor Air CO2 iaq AI (4---20 ma)
J4---2 & 3 or J4---5 & 6 Outdoor Air CO2 oaq AI (4---20 ma)
Space Relative Humidity space_rh AI (4---20 ma)
Supply Fan Status* sfan_status DI (24 VAC)
J5---1 or J5---3 or J5---5
Filter Status* filter_status DI (24 VAC)
Door Contact Input* door_contact_status DI (24 VAC)
Occupancy Contact* occ_contact_status DI (24 VAC)
OUTPUTS
Economizer Output econ_output AO (4---20ma) J2---5
Supply Fan Relay State sfan DO Relay (24VAC , 1A) J1---4
Compressor 1 Relay State comp_1 DO Relay (24VAC , 1A) J1---8
Compressor 2 Relay State comp_2 DO Relay (24VAC , 1A) J1---7
Heat Stage 1 Relay State heat_1 DO Relay (24VAC , 1A) J1---6
Heat Stage 2 Relay State heat_2 DO Relay (24VAC , 1A) J1---5
Power Exhaust Relay State pexh DO Relay (24VAC , 1A) J11---1 & 3
Perfect Humidity Relay State dehum DO Relay (24VAC, 1A) J11---7, 8
LEGEND
AI
--- Analog Input
AO --- Analog Output
DI --- Discrete Input
DO --- Discrete Output
* These inputs (if installed) take the place of the default input on the specific channel according to schematic.
Parallel pins J5---1 = J2---6, J5---3 = J1---10, J5---5 = J1---2 are used for field---installation.
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 580J units, 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 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 codes). Drill or punch a
1
/
2
--in. hole in the
flange or duct. Use two field--supplied, self--drilling screws
to secure the sensor probe in a horizontal orientation. See
Fig. 40.
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.
SUPPLY AIR
TEMPERATURE
SENSOR
SUPPLY AIR RETURN AIR
ROOF
CURB
C13783
Fig. 40 -- Mounting Location for Supply Air
Temperature (SAT) Sensor on 580J Units
580J
--
17
--
30
--
V