Bryant 548J*17 D Series, Installation Instructions Manual

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Table 22 – RTU Open Controller Inputs and Outputs
POINT NAME
BACnet OBJECT
NAME
TYPE OF I/O
CONNECTION
PIN NUMBER(S)
CHANNEL DESIGNATION
DEDICATED INPUTS
Space Temp / Zone Temp zone_temp AI (10K Thermistor) J20--- 1 and 2 Analog Input 10
Supply Air Temperature sa_temp AI (10K Thermistor) J2--- 1 and 2 Analog Input 6
Outside Air Temperature oa_temp AI (10K Thermistor) J2--- 3 and 4 Analog Input 7
Space Temperature Offset Pot stpt_adj_offset AI (100K Potentiometer) J20--- 3 and 4 Analog Input 11
Safety Chain Feedback safety_status BI (24 VAC) J1--- 9 Binary Input 4
Compressor Safety Status
(1)
comp_status BI (24 VAC) J1--- 2 Binary Input 3
Fire Shutdown Status firedown_status BI (24 VAC) J1--- 10 Binary Input 5
Enthalpy Status enthalpy_status BI (24 VAC) J2--- 6 and 7 Binary Input 8
Humidistat Input Status humstat_status BI (24 VAC) J5--- 7 and 8 Binary Input 9
Zone Temperature n/a n/a J13--- 1--- 4 Rnet
CONFIGURABLE INPUTS
(4)
Indoor Air CO2 iaq AI (4--- 20 mA)
J4---2 and 3 or J4---5 and 6
Analog Input 2
Outdoor Air CO2 oaq AI (4--- 20 mA) Analog Input 1
Space Relative Humidity space_rh AI (4--- 20 mA) Analog Input 10
Supply Fan Status
(2)
sfan_status BI (24 VAC)
J5---1 and 2 or J5---3and 4,
J5---5 and 6 or J5---7 and 8
(3)
Binary Input 3, 5, 8, or 9, except where intrinsic input is used
Filter Status
(2)
filter_status BI (24 VAC) Binary Input 3, 5, 8, or 9, except where intrinsic input is used
Door Contact
(2)
door_contact_status BI (24 VAC) Binary Input 3, 5, 8, or 9, except where intrinsic input is used
Remote Occupancy input
(2)
occ_contact_status BI (24 VAC) Binary Input 3, 5, 8, or 9, except where intrinsic input is used
IGC input
(2)
igcovr_status BI (24 VAC) Binary Input 9. Mandatory input on gas heat units.
OUTPUTS
Economizer Output econ_output AO (4--- 20mA) J2--- 5 Analog Output 1
Supply Fan VFD vfd_output AO (2--- 10Vdc) J22--- 1 and 2 Analog Output 2
Supply Fan Relay sfan BO Relay (24VAC, 1A) J1--- 4 Binary Output 1 (G)
Cool 1 Relay State comp_1 BO Relay (24VAC, 1A) J1--- 8 Binary Output 5 (Y1)
Cool 2 Relay State comp_2 BO Relay (24VAC, 1A) J1--- 7 Binary Output 4 (Y2)
Cool 3 Relay State comp_3 BO Relay (24VAC, 1A) J11--- 5 and 6 Binary Output 7 (Y3)
Heat 1 Relay State heat_1 BO Relay (24VAC, 1A) J1--- 6 Binary Output 3 (W1)
Heat 2 Relay State heat_2 BO Relay (24VAC, 1A) J1--- 5 Binary Output 2 (W2)
Power Exhaust Relay State pexh BO Relay (24VAC, 1A) J11--- 2 and 3 (N.O.) Binary Output 8 (PE)
Dehumidification Relay dehum BO Relay (24VAC, 1A) J11--- 7 and 8 (N.O.) Binary Output 6
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 RTU Open Multi--- Protocol Controller 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 548J 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 factory--wired SAT is mounted through the side of the
heat chamber below the fan deck and does not require
relocation. See Fig. 45.
Outdoor Air Temperature (OAT) Sensor —
The OAT is factory--mounted in the EconoMi$er
R
2 (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. 45 -- Mounting Location of Supply Air
Temperature (SAT) Sensor on 548J Units