580J

Table 15 – RTU-MP Controller Inputs and Outputs

 

 

POINT NAME

BACnet OBJECT

 

TYPE OF I/O

CONNECTION PIN

 

 

NAME

 

NUMBERS

 

 

 

 

 

 

 

 

INPUTS

 

 

 

Space Temperature Sensor

sptsens

 

AI (10K Thermistor)

J20---1, 2

Supply Air Temperature

sat

 

AI (10K Thermistor)

J2---1, 2

Local Outside Air Temperature Sensor

oatsens

 

AI (10K Thermistor)

J2---3, 4

Space Temperature Offset Pot

sptopot

 

AI (100K Potentiometer)

J20---3

Indoor Air Quality

iaq

 

AI (4---20 ma)

J4---2, 3

Outdoor Air Quality

oaq

 

AI (4---20 ma)

J4---5, 6

Safety Chain Feedback

safety

 

DI (24 VAC)

J1---9

Compressor Safety

compstat

 

DI (24 VAC)

J1---2

Fire Shutdown

firedown

 

DI (24 VAC)

J1---10

Enthalpy Switch

enthalpy

 

DI (24 VAC)

J2---6, 7

Humidistat Input Status

humstat

 

DI (24 VAC)

J5---7, 8

 

 

 

CONFIGURABLE

INPUTS*

 

Space Relative Humidity

sprh

 

AI (4---20 ma)

J4---2,3 or J4---5,6

Outside Air Relative Humidity

oarh

 

AI (4---20 ma)

 

 

Supply Fan Status

fanstat

 

DI (24 VAC)

J5---1,2 or J5---3,4 or

Filter Status

filtstat

 

DI (24 VAC)

 

J5 5,6 or J5---7,8

Remote Occupancy Input

remocc

 

DI (24 VAC)

 

 

 

 

 

OUTPUTS

 

 

 

Economizer Commanded Position

econocmd

 

4---20ma

J2---5

Supply Fan Relay State

sf

 

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

aux_2

 

DO Relay (24VAC , 1A)

J11---3

Dehumidification Relay State

humizer

 

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.

Refer to the input configuration and accessory sections for more detail.

NOTE: Refer to RTU-MP Controls, Start-Up, Operation, and Troubleshooting Instructions (Form 48-50H-T-2T) for complete configuration of RTU-MP, operating sequences and troubleshooting information. Refer to RTU-MP 3rd Party Integration Guide for details on configuration and troubleshooting of connected networks. Have a copy of these manuals available at unit start-up.

The RTU-MP controller requires the use of a Bryant space sensor. A standard thermostat cannot be used with the RTU-MP system.

Supply Air Temperature (SAT) Sensor

On FIOP-equipped 580J unit, the unit is supplied with a supply-air temperature (SAT) sensor (33ZCSENSAT). This sensor is a tubular probe type, approx 6-inches (12.7

mm)in length. It is a nominal 10-k ohm thermistor. See Table 16 for temperature-resistance characteristic.

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 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. 43.)

Outdoor Air Temperature (OAT) Sensor

The OAT is factory-mounted in the EconoMi$er 2 (FIOP or accessory). It is a nominal 10k ohm thermistor attached to an eyelet mounting ring. See Table 16 for temperature-resistance characteristic.

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Bryant F Supply Air Temperature SAT Sensor, Outdoor Air Temperature OAT Sensor, RTU-MP Controller Inputs and Outputs

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