Bryant 580J 04-30, 558J 04-30, 548J 04-24581J 04-28, 549J 04-12, 551J 04-28 Controls, Start-up, Operation And Troubleshooting

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580J/558J*04- 30, 548J*04-24 581J/551J*04- 28, 549J*04-12 Factory Installed Option RTU Open

Controls, Start- Up, Operation,

and Troubleshooting

TABLE OF CONTENTS

SAFETY CONSIDERATIONS 2.........................

GENERAL 2.........................................

SENSOR/ACCESSORY INSTALLATION 2................

Sensors and Accessories 4.............................

User Interfaces 4.....................................

Install Analog Sensors 4...............................

Supply Air Sensor (SAT) 4...........................

Outdoor Air Sensor (OAT) 4..........................

Space Temperature Sensor (SPT) 4.....................

Sensor(s) (IAQ and OAQ) 6......................

Relative Humidity Sensors 8..........................

Installing Discrete Inputs 8.............................

Compressor Safety 8................................

Humidistat 8......................................

Single Enthalpy (Outdoor Enthalpy) 8..................

Differential Enthalpy 8..............................

Fire Shutdown 9...................................

Filter Status 9......................................

Fan Status 9.......................................

Remote Occupancy 9................................

Communication Wiring-Protocols 10.....................

General 10........................................

BACnet

Modbus 11.......................................

Johnson N2 11.....................................

LonWorks 11......................................

Local Access 12....................................

START-UP 13........................................

Additional Installation/Inspection 13.....................

Perfect Humidityt Control Wiring 13..................

Power Exhaust Relay Power 13........................

Service Test 13......................................

Fan Test 13.......................................

High Speed Fan Test 13..............................

Compressor 1 and Compressor 2 Test 13.................

Heat 1 and Heat 2 Test 13............................

Reversing Valve Test 13.............................

Dehumidification Test 14.............................

MS/TP 10................................

Power Exhaust Test 14..............................

Economizer Test 14.................................

Analog Output 2 Test 14.............................

Configuration 14....................................

Setpoint 14.......................................

Unit 14..........................................

Inputs 15.........................................

Service 16........................................

Clockset 17.......................................

USERPW 17......................................

OPERATION 17......................................

Occupancy 17.......................................

Indoor (Supply) Fan 17...............................

Cooling 17.........................................

Supply Fan 18......................................

Economizer 18......................................

Power Exhaust 19....................................

Pre-Occupancy Purge 19..............................

Heating 19.........................................

Indoor Air Quality 19.................................

Dehumidification 19..................................

Demand Limit 20....................................

Unoccupied Free Cooling 20...........................

Optimal Start 20.....................................

Fire Shutdown 20....................................

Compressor Safety 20.................................

Fan Status 20.......................................

Filter Status 20......................................

Door Switch 20......................................

TROUBLESHOOTING 21..............................

General 21.........................................

Thermistor Troubleshooting 21.........................

Software Version 21..................................

Communication LED’s 23.............................

Alarms 25..........................................

Third Party Networking 27.............................

APPENDIX A - USER INTERFACE MENUS 28............

APPENDIX B - THIRD PARTY POINTS LIST 37...........

RTUOPENSTART-UPSHEET 41.......................

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment. Untrained personnel can perform the basic maintenance functions of replacing filters. Trained service personnel should perform all other operations.

When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply. Follow all safety codes. Wear safety glasses and work gloves.

Follow all safety codes. Wear safety glasses and work gloves. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements.

Recognize safety information. This is the safety- alert

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symbol instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Disconnect all power to the unit before performing maintenance or service. Unit may automatically start if power is disconnected.

. When you see this symbol on the unit and in

WARNING

GENERAL

The RTU Open controller is an integrated component of the Bryant rooftop unit. Its internal application programming provides optimum performance and energy efficiency. RTU Open enables the unit to run in 100% stand- alone control mode or a Third Party Building Automation System (BAS). On- board DIP switches allow you to select your protocol (and baud rate) of choice among the four most popular protocols in use today: BACnet LonWorks. (See Fig. 1.)

NOTE: Lon Works requires addition of LON option card. Bryant’s diagnostic display tools such as Field Assistant,

BACview with the RTU Open controller. Access is available via a 5- pin J12 access port.

Handheld or Virtual BACview can be used

, Modbus, Johnson N2 and

SENSOR/ACCESSORY

INSTALLATION

There are a variety of sensors and accessories available for the RTU Open. Some of these can be factory or field installed, while others are only field installable. The RTU Open controller may also require connection to a building network system or building zoning system. All field control wiring that connects to the RTU Open must be routed through the raceway built into the corner post of the unit or secured to the unit control box with electrical conduit. The unit raceway provides the UL required clearance between high and low-voltage wiring. Pass the control wires through the hole provided in the corner post, then feed the wires thorough the raceway to the RTU Open. Connect the wires to the removable Phoenix connectors and then reconnect the connectors to the board. See Fig. 1 and Table 1 for board connections and Fig. 2 for Typical Factory RTU Open wiring.

IMPORTANT: Refer to the specific sensor or accessory instructions for its proper installation and for rooftop unit installation refer to base unit installation instructions and the unit’s wiring diagrams.

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death and/or equipment damage.

Disconnect electrical power and use lock- out tags before wiring the RTU Open controller.

Input_2 (CO2/RH)

Input_1 (CO2/RH)

+24 VDC

Gnd

+24 VDC

Board Power

24 VAC IN

DO-2 (W2)

DO-1 (G)

Gnd

Input_3 (X)

DO-3 (W1)

DO-4 (Y2)

DO-5 (Y1)

Input_5 (SMK)

Input_4 (R)

Input _8 (Enthalpy)

AO-1 (ECON)

Configurable - Input_8

Configurable - Input_5

Configurable - Input_3

Input_9 (Humidistat)

Gnd

24 VAC

(AO-1)

(OAT)

(SAT)

Gnd

Lonworks Option Card Port

J12

J13

J22

J17

J2J1

Network Comm

0-10VDC

24 VAC

4-20mA

J5 J5

J11

DO-6 (H) Dehumidification

DO-7

(Reversing Valve/High Speed Fan)

DO-8 (Power Exhaust)

24 VAC

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Example set for BACnet MS/TP and 76.8K baud (1, 2, and 4 ON)

J15

J20

Protocol Selector SPT (temp input) BACnet, Modbus, or N2

*Remove both for 0-5V

SPT (common)

SPT (offset input)

J19

(LON connection J15)

J14

Fig. 1 - RTU Open Control Module

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Table 1 – RTU Open Inputs and Outputs

POINT NAME

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 T emperature 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

Indoor Air CO2 iaq AI (4- 20 ma) 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) Filter Status* filter_status DI (24 VAC) Door Contact Input* door_contact_status DI (24 VAC) Occupancy Contact* occ_contact_status DI (24 VAC)

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Economizer Output econ_output AO (4 - 20ma) J2- 5 SupplyFanRelayState 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

* These inputs (if installed) take the place of the default input on the speci fic channel

Parallel pins J5- 1 = J2 - 6, J5- 3 = J1 - 10, J5- 5 = J1 - 2 are used for filed installation.

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

BACnet OBJECT

NAME

DEDICATED INPUTS

CONFIGURABLE INPUTS

TYPE OF I/O

J4- 2 & 3 or J4- 5 & 6

J5- 1 or J5- 3 or J5- 5

OUTPUTS

CONNECTION PIN

NUMBER(S)

Sensors and Accessories

The RTU Open controller is configurable with the following field-supplied sensors:

NOTE: Supply air temperature sensor (33ZCSENSAT) is factory-installed.

S Space temperature sensor (33ZCT55SPT, 33ZCT56SPT,

or 33ZCT59SPT)

S Indoor air quality sensor (33ZCSPTCO2- 01,

33ZCSPTCO2LCD- 01, 33ZCT55CO2, 33ZCT56CO2) required for demand control ventilation.

S Outdoor air quality sensor (33ZCSPTCO2- 01,

33ZCSPTCO2LCD- 01)

aspirator box (C33ZCCASPCO2) required for CO

S CO

return duct/outside air applications

S Outdoor air enthalpy switch (33CSENTHSW) S Return air enthalpy sensor (33CSENTSEN) required for

differential enthalpy control

S Space relative humidity sensor (33ZCSENSRH-02) S Duct relative humidity (33ZCSENDRH-02) S Humidistat (--HL--38MG-029) S Smoke Detectors (CRSMKSEN002A00,

CRSMKKIT002A00)

S Fan and/or Filter Status (CRSTATUS001A00,

CRSTATUS005A00)

User Interfaces

S BACview6Handheld (BV6H) S Virtual BACview (USB-L or USB-TKIT required) S Field Assistant (USB-TKIT required)

Install Analog Sensors

Supply Air Sensor (SAT)

The factory supplies the discharge (supply) air sensor with the unit and is pre- wired. On 04-16 size units, the SAT is secured to the unit’s supply duct opening. This sensor must be relocated into the supply duct during unit installation. On 17-30 size units, the SAT is mounted through the side of the heat chamber below the fan deck,

and does NOT require relocation.

OutdoorAirSensor(OAT)

The OAT is supplied with the economizer option or accessory. It is wired through the 12-pin plug (PL6) in the return air section of the unit and is mounted on the economizer assembly.

Space Temperature Sensor (SPT)

SPT sensors available from Bryant are resistive input non-communicating (T55, T56, and T59) sensors. These sensors have a variety of options consisting of: timed override button, set point adjustment, and a LCD screen. Space temperature can be also be written to from a building network or zoning system. However, it is still recommended that return air duct sensor be installed to allow stand-alone operation for back-up. Refer to the configuration section for details on controller configurations associated with space sensors.

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Fig. 2 - Typical Factory Option Wiring

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Resistive Non-Communicating Sensor Wiring

For sensor with setpoint adjustment up to 500 ft (152m), use three-conductor shielded cable 20 gauge wire to connect the sensor to the controller. For non set point adjustment (slidebar) or return air duct sensor, an unshielded, 18 or 20 gauge, two-conductor, twisted pair cable may be used. Below is the list of the connections of the SPT to the RTU Open, refer to Fig. 3 and 4 for typical connections at the sensor.

S J20-1 = temperature sensor input (SEN) S J20-2 = sensor common S J20-3 = Setpoint adjustment input (SET)

NOTE: See Fig. 5 for space temperature sensor averaging. T55/56 Override button will no longer function when sensors are averaged. Only Sensor 1 T56 STO input can be used.

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SW1

Cool Warm

SEN

SET

BLK (T56)

BRN (GND) BLU (SPT)

SENSOR WIRING

JUMPER TERMINALS AS SHOWN

Fig. 3 - Space Temperature Sensor

Typical Wiring (33ZCT56SPT)

BLK (STO)

BRN (COM)

BLU (SPT)

J20-3

J20-2

J20-1

SENSOR WIRING

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Rnet Communicating Sensor Wiring

The Rnet bus allows local communication with the RTU Open, including field supplied communicating sensors. The Rnet bus can hold up to 6 devices, including up to 2

BACview

units, wired in daisy-chain or hybrid

configuration.

NOTE: Additional BACview Refer to the BACview

units must be addressed.

installation instructions for for

details on addressing. For Rnet wiring up to 500ft (152m), use 18 AWG 4

conductor unshielded plenum rated cable. The RTU Open’s J13-RNET connection has a 4 pin Phoenix connector wired as described below, Fig. 6 shows sensor Rnet wiring.

S RNET - 1 = Signal ground (GND) S RNET - 2 = Signal (Rnet+) S RNET - 3 = Signal (Rnet- ) S RNET - 4 = Power (+12v)

CO2Sensor(s) (IAQ and OAQ)

The indoor air quality (IAQ) and outdoor air quality

Sensor

) levels. This

(IAQ) sensor

sensor

(OAQ) sensors monitor carbon dioxide (CO information is used to monitor the quality of air in terms of parts per million (PPM). The same sensor is used for inside, outside, and duct monitoring, except an aspirator box is required for outside and duct mounting. The CO sensor is preset for a range of 0 to 2000 ppm and a linear mA output of 4 to 20. The rooftop unit may have a factory installed CO

sensor on the side of the economizer

assembly in the return air section of the unit and is pre-wired and pre-configured at the factory. For field installed sensors, a field supplied transformer must be used to power the sensor. Refer to the instructions supplied with the CO

sensor for electrical requirements

and terminal locations. RTU Open configurations must be changed after adding a CO for typical CO

sensor wiring.

sensor. See below and Fig. 7

S J4- 2 or J4- 5 = 4- 20mA signal input S J4- 3 or J4- 6 = signal common

NOTE: The factory used J4-2&3 for CO inputs.

Combination Temperature and CO

If using a combination temperature and CO (33ZCT55CO2 or 33ZCT56CO2), refer to the installation instructions provided with the sensor.

OR SET SEN

OPB COM- PWR+

24 VAC

NOTE: Must use a separate isolated transformer.

Fig. 4 - Space Temperature Sensor

Typical Wiring (33ZCT59SPT)

POWER WIRING

C10291

RED

BLK

RED

BLK

J20

RED

BLK

LEGEND

Factory Wiring

Field Wiring

RED

BLK

RED

BLK

SENSOR 1 SENSOR 2 SENSOR 3 SENSOR 4

RED

BLK

SPACE TEMPERATURE AVERAGING — 4 SENSOR APPLICATION

BLK

SENSOR 1

RED

SENSOR 4

RED

BLK

SENSOR 2

RED

BLK

SENSOR 5

RED

BLK

RED

BLK

SENSOR 3

RED

BLK

SENSOR 6

RED

BLK

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SENSOR 7

SPACE TEMPERATURE AVERAGING — 9 SENSOR APPLICATION

Fig. 5 - Space Temperature Averaging

C10820

Fig. 6 - Typical Rnet Communication Sensor Wiring

SENSOR 8

SENSOR 9

C07133

To controller

24 Vac Line

8 7 6 5 4

2 1

24 Vac or Vdc

Dedicated Transforme

SENSOR LEGEND

1 +24 Vac/Vdc 2 Gnd (-24 Vac/Vdc) 4 -Thermistor 5 +Thermistor 6 4-20 mA 7 SIG COM 8 0-5 Vdc

C12748

Fig. 7 - Indoor/Outdoor Air Quality (CO2)Sensor

(33ZCSPTCO2- 01 or 33ZCSPTCO2LCD- 01)

Typical Wiring Diagram

Relative Humidity Sensors (Space or Duct Mounted)

The accessory space humidity sensor or duct humidity sensor is used to measure the relative humidity of the air within the space or return air duct. The RH reading is used to control the Perfect Humidityt option of the rooftop unit. For wiring distances up to 500 ft (152m), use a 3-conductor, 18 or 20 AWG shielded cable. The shield must be removed from the sensor end of the cable and grounded at the unit end. The current loop power for the sensor is provided by the RTU Open controller as 24vdc. Refer to the instructions supplied with the RH sensor for electrical requirements and terminal locations. RTU Open configurations must be changed after adding a RH sensor. See below and Fig. 8 and 9 for typical RH sensor wiring.

S J4- 1 or J4- 4 = 24vdc loop power S J4- 2 or J4- 5 = 4- 20mA signal input

NOTE: The factory default for dehumidification control is a normally open humidistat.

Installing Discrete Inputs

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Compressor Safety

The compressor safety input provides the RTU Open with feedback to when the compressor is not running and should be. This feedback is usually provided by a Compressor Lock-Out (CLO) device. Compressor safety is a dedicated input on the configurable input 3 and tells the RTU Open when the compressor is locked out. The normal condition for compressor safety is good operation. A normally open compressor safety is the factory default for all units. Follow specific accessory instructions if installing a CLO device. The CLO should wire into the unit’s central terminal Board (CTB).

NOTE: Input 3 can also be wired into J-5.

MOUNTING HOLES

Gnd

Vin

SW2

123456

a33-9141

Vin - J4 -1 or J4 -4 24Vdc Io - J4 -2 or J4 -5 4 -20mA output

Fig. 8 - Space Relative Humidity Sensor Typical Wiring

WIRING OPENING

C07201

Humidistat

The accessory humidistat provides the RTU Open insight to the relative humidity in the space. The humidistat reads the RH level in the space and compares it to its setpoint to operate a dry contact. The humidistat is a dedicated input on the configurable input 9 and tells the RTU Open when the RH level is HIGH or LOW. The normal condition for humidity is LOW. A normally open humidistat is the factory default control for the Perfect Humidityt option. To wire in the field:

S J5- 8 = 24 VAC source for dry contact S J5- 7 = Signal input

Single Enthalpy (Outdoor Enthalpy)

The outdoor enthalpy switch/receiver (33CSENTHSW) senses temperature and humidity of the air surrounding the device and calculates the enthalpy when used without an enthalpy sensor. The relay is energized when enthalpy is high (above 28 BTU/lb OR dry bulb temperature is above 75_F) and de-energized when enthalpy is low (below 27 BTU/lb AND dry bulb temperature is below

74.5_F). The enthalpy input is dedicated to input 8 and tells the RTU Open when the outside air enthalpy is HIGH or LOW. The normal condition for the enthalpy input is HIGH. Enthalpy is configured on input 8 in the factory when it is added as an option.

NOTE: The enthalpy calculation is done using an average altitude of 1000 ft above sea level.

For field installation, refer to the enthalpy accessory instructions. For wiring see below and Fig. 10. The RTU Open board provides 24vac on one of the two loose grey wires in the return air section of the rooftop near the 12-pin economizer plug. To determine the correct grey, measure the voltage on the wires with power applied to the unit. If 24-vac is sensed, then that is the grey wire that is connected to the RTU Open board at J2-7. The other is the signal for input 8, connect it to the LOW Enthalpy terminal on the enthalpy switch/receiver. Tie into the 12-pin economizer plug on pin 4 or the black wire connected to the actuator for the enthalpy’s GND connection. Power can also be provided direct from the unit transformer and J5 terminal on the RTU Open.

S J2- 7 or J5- 2 = 24 VAC for enthalpy switch power S J2- 6 or J5- 1 = input signal

Differential Enthalpy

Differential enthalpy control requires both an enthalpy switch/receiver (33CSENTHSW) and an enthalpy sensor (33CSENTSEN). The enthalpy sensor must be installed in the field as the factory can only provide single enthalpy. The enthalpy sensor must be mounted in the return airstream and calculates the enthalpy of the indoor air. The relay is energized when the enthalpy detected by the return air enthalpy sensor is less than the enthalpy at the enthalpy switch/receiver. The relay is de-energized when the enthalpy detected by the return air enthalpy sensor is greater than the enthalpy at the enthalpy switch/receiver (differential enthalpy control).

J4-1 or J4-4 + 24 VDC Supply Voltage

J4-2 or J4-5 (-)4 to 20 mA Current Loop Output to RTU Open

Fig. 9 - Duct Relative Humidity Sensor Typical Wiring

To wire return air enthalpy sensor:--MP Connect the 4-20 mA In terminal on the enthalpy switch/ receiver to the 4-20 mA Out terminal on the return air enthalpy sensor. Connect the 24-36 VDC Out terminal on the enthalpy switch/receiver to the 24-36 VDC In terminal on the return air enthalpy sensor. (See Fig 10.)

Fire Shutdown

The fire shutdown input is provided for unit shutdown in response to a fire alarm or smoke detector. The fire shutdown input is dedicated to input 5 and tells the RTU Open when to shutdown due to smoke detection or fire alarm system. The normal condition for fire shutdown is there is no fire alarm. The unit may have factory installed smoke detector(s); refer to the base unit installation instructions for details on any adjustments required during unit installation. Fire shutdown is always factory configured for a normally open smoke detector.

For field installation of a smoke detector see instructions for that specific accessory. See below and the troubleshooting section for wiring at the unit’s Central Terminal Board (CTB).

S CTB - UNIT SHUTDOWN - 24v OUT = 24 VAC

source

S CTB - UNIT SHUTDOWN - Smoke Alarm = Signal

input to RTU Open

NOTE: Input 5 can also be wired into J5- 3.

Relative Humidity Sensor (Polarized Male Connector)

4-20mAVAC

VDC

GND 0-5V

0-10V

SPAN

ZERO

123456

Filter Status

The filter status accessory is a field-installed accessory. This accessory detects plugged filters. When installing this accessory, the unit must have a free input (input 3, 5, 8, or 9). One of the dedicated functions (Humidistat, Fire shutdown, Enthalpy, or Compressor safety) must not be in use to configure Filter Status. Refer to the configuration section for details on configuring inputs for specific functions and state. Refer to Fig. 1 for wire terminations at J5.

Fan Status

The fan status accessory is a field-installed accessory. This accessory detects when the indoor fan is moving air. When installing this accessory, the unit must have a free input (input 3, 5, 8, or 9). One of the dedicated functions (Humidistat, Fire shutdown, Enthalpy, or Compressor safety) must not be in use to configure Fan Status. Refer to the configuration section for details on configuring inputs for specific functions and state. Refer to Fig. 1 for wire terminations at J5.

Remote Occupancy

The remote occupancy accessory is a field-installed accessory. This accessory provides an input to change the units occupancy status. When installing this accessory, the unit must have a free input (input 3, 5, 8, or 9). One of the dedicated functions (Humidistat, Fire shutdown, Enthalpy, or Compressor safety) must not be in use to configure remote occupancy. Refer to the configuration section for details on configuring inputs for specific functions and state. Refer to Fig. 1 for wire terminations at J5.

C12756

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C10821

TS- 5580- 01

Fig. 10 - Enthalpy Switch and Sensor Wiring

Communication Wiring- Protocols

General

Protocols are the communication languages spoken by control devices. The main purpose of a protocol is to communicate information in the most efficient method possible. Different protocols exist to provide different kinds of information for different applications. In the BAS application, many different protocols are used, depending on manufacturer. Protocols do not change the function of a controller; just make the front end user different.

The RTU Open can be set to communicate on four different protocols: BACnet, Modbus, N2, and LonWorks. Switch 3 (SW3) on the board is used to set protocol and baud rate. Switches 1 and 2 (SW1 and SW2) are used to set the board’s network address. See Fig. 11 and 12 for protocol switch settings and address switches. The 3rd party connection to the RTU Open is through plug J19. See Fig. 13 for wiring. Contact Bryant applications engineering for more detailed information on protocols, 3rd party wiring, and networking.

NOTE: Power must be cycled after changing the SW1- 3 switch settings.

BACnetRMS/TP

BACnet Master Slave/Token Passing (MS/TP) is used for communicating BACnet over a sub- network of BACnet- only controllers. This is the default Bryant communications protocol. Each RTU Open module acts as an MS/TP Master. The speed of an MS/TP network can range from 9600 to 76.8K baud. Physical Addresses can be set from 01 to 99.

SW3 Protocol Selection

PROTOCOL DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 BACnet MS/TP

(Master)

Modbus (Slave)

N2 (Slave)

LonWorks Unused ON ON OFF ON OFF OFF ON

NOTE: DS = Dip Switch BACnet MS/TP SW3 example shown

BAUD RATE DS2 DS1

9600 OFF OFF 19,200 ON OFF 38,400 OFF ON 76,800 ON ON

Unused OFF OFF OFF ON OFF Select Baud Select Baud

Unused OFF OFF ON ON OFF Select Baud Select Baud

Unused OFF OFF OFF ON ON OFF OFF

Baud Rate Selections

Fig. 11 - RTU Open SW3 Dip Switch Settings

Fig. 12 - RTU Open Address Switches

C10815

C07166

TS- 5580- 01

Modbus

The RTU Open module can speak the Modicon Modbus RTU Protocol as described in the Modicon Modbus Protocol Reference Guide, PI- -MBUS- -300 Rev. J. The speed of a Modbus network can range from 9600 to 76.8K baud. Physical Addresses can be set from 01 to 99.

Johnson N2

N2 is not a standard protocol, but one that was created by Johnson Controls, Inc. that has been made open and available to the public. The speed of N2 network is limited to only 9600 baud. Physical Addresses can be set from 01 to 99.

LonWorks

LonWorks is an open protocol that requires the use of Echelon’s Neuron microprocessor to encode and decode the LonWorks packets. In order to reduce the cost of adding that hardware on every module, a separate LonWorks Option Card (LON- OC) was designed to connect to the RTU Open.

This accessory card is needed for LonWorks and has to be ordered and connected using the ribbon cable to plug J15. The RTU Open’s baud rate must be set to 38.4k to communicate with the LON-OC. The address switches (SW1 & SW2) are not used with LonWorks.

Fig. 13 - Network Wiring

C10816

LON OC Rev.4

COMM

OPTION

Network

Net

Connector

Local Access

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BACview6Handheld

The BACview connect to the RTU Open to access the control information, read sensor values, and test the RTU. (See Fig. 15.) This is an accessory interface that does not come with the RTU Open controller. You connect the BACview

of the communicating space sensor’s access port. There are 2 password protected levels in the display (User and Admin). The user password is defaulted to 0000, but can be changed. The Admin password is 1111 and cannot be changed. There is a 10 minute auto logout if a screen is left idle. See Appendix A for navigation and screen content.

is a keypad/display interface used to

to the RTU Open’s J12 local access port or one

1 2

Fig. 14 - LON- OC and LON Network Wiring

J15

C12750

Virtual BACview

Virtual BACview is a freeware computer program that functions as the BACview interface (USB- L) is required to connect a computer to the RTU Open board. The link cable connects a USB port to the J12 local access port. This program functions and operates identical to the handheld.

Field Assistant

Field Assistant is a computer program included with the purchase of the USB Link Tech Kit (USB-TKIT). This is a field Tech Tool to set-up, service, or download the RTU Open controller. The link cable connects a USB port to the J12 local access port. The menu structure is similar to the BACview.

Handheld. The USB Link

Access Port

P1 P1

J12

Cable

P5 P5

Fig. 15 - BACview6Handheld Connections

BACview

Protocol Selector

RTU Open

Local Access Cable

C12749

START- UP

IMPORTANT: Follow the base unit’s start-up sequence

documented in its specific instructions. Use the base unit’s start-up check list when performing the start-up. At the end of this manual there is an additional RTU Open Start-up Sheet to be completed and included with the base unit check list.

Besides the base unit start-up, there are a few steps to take to properly start-up the controls. RTU Open’s Service Test function should be used to assist in the base unit start-up and also allows verification of output operation. Controller configuration is also part of start-up. This is especially important when field accessories have been added to the unit. The factory pre-configures options installed at the factory. There may also be additional installation steps or inspection required during the start-up process.

Additional Installation/Inspection

Inspect the field installed accessories for proper installation, making note of which ones do or do not require configuration changes. Inspect the RTU Open’s Alarms for initial insight to any potential issues. See troubleshooting section for alarms. Inspect the SAT sensor for relocation as intended during installation. Inspect special wiring as directed below.

Perfect Humidityt Control Wiring

In units equipped with the optional Perfect Humidity option there are 2 loose wires (one pink and one pink/black) in the control box used to control the dehumidification function of the unit. These wires are meant to be ties to a space humidistat or thermidistat on an electromechanical unit. On RTU Open equipped units these wires must be connected to J11-7 & 8 to allow the Open board to operate the dehumidification function or the unit. Disconnect the J11 Phoenix style connector form the board and use the plug screws to secure the pink/black wire in pin 7 and and the pink wire in pin 8, reconnect the plug to the board at J11.

Power Exhaust Relay Power

The relay used by the RTU Open board to control power exhaust is a dry contact which means it does not have 24vac. This 24vac must be connected to the relay to allow it operate the power exhaust relay in the PE accessory. A 24vac source should be provided to the J11-2 pin on the RTU Open. This can be provided by the unit’s transformer from various sources. The “R” terminal on the unit’s central terminal board (CTB) is a logical source.

Service Test

The Service Test function can be used to verify proper operation of compressors, heating stages, indoor fan, power exhaust fans, economizer, and dehumidification. Use of Service Test is recommended at initial system start up and during troubleshooting. See Appendix A for Service Test Mode table.

Service Test mode has the following changes from normal operation:

S Outdoor air temperature limits for cooling circuits,

economizer, and heating are ignored.

S Normal compressor time guards and other staging

delays are ignored.

S The status of Alarms (except Fire and Safety chain) is

ignored, but all alerts and alarms are still broadcasted on the network.

Service Test can be turned ON/OFF at the unit display or from the network. Once turned ON, other entries may be made with the display or through the network. To turn Service Test on, change the value of Test Mode to ON, to turn Service Test off, change the value of Test Mode to OFF.

NOTE: Service Test mode is password protected when accessing from the display. Depending on the unit model, factory-installed options, and field-installed accessories, some of the Service Test functions may not apply.

Fan Test

This point allows the board’s fan output to be manually turned On (Enable) and Off (Disable). Other test points that require the fan for operation will automatically turn the fan on and this point will still show “Disable.” Fan test can operate simultaneously with other Service Test Points.

High Speed Fan Test

Use the High Speed Fan Test to activate and deactivate the Supply Fan (BO-1) output.

NOTE: This output is only applicable if Fan Control is set to Two Speed and Unit Type is not equal to HP O/B Ctrl.

Compressor 1 and Compressor 2 Test

The compressor test points are used to change output status for the individual compressors. Compressor starts are not staggered. The fan and heating service test outputs are reset to “Disable” for the compressor service tests. The Indoor fan and outdoor fans are controlled normally to maintain proper unit operation. All normal cooling alarms and alerts are functional.

NOTE: Compressor 1 is always operated with Compressor 2 due to outdoor fan control on Compressor 1. Always test Compressor 1 first, and leave it on to test Compressor 2.

Heat 1 and Heat 2 Test

The heat test points are used to change output status for the individual heat stages, gas or electric. The fans and cooling service test outputs are reset to “Disable” for the heat service tests. Indoor and outdoor fans are controlled normally to maintain proper unit operation. All normal heating alarms and alerts are functional.

Reversing Valve Test

This test point activates the DO7 relay at J11. These rooftop units do not use reversing valve control for heat pumps, therefore this test is not used.

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Dehumidification Test

For units with the factory Reheat option, the dehumidification relay is used to change the output status to operate the circuits in different Reheat modes. Dehumidification relay on by itself puts all circuits running in Hot Gas Reheat dehumidification mode; dehumidification relay on and the cooling test (compressor test relays) on puts unit and or individual circuits in subcooling dehumidification mode. The fans and heating service test outputs are reset to “Disable” for the dehumidification service test. Indoor and outdoor fans are controlled normally to maintain proper unit operation. All normal cooling/dehum alarms and alerts are functional.

Power Exhaust Test

This point allows the board’s power exhaust (PE) output to be manually turned On (Enable) and Off (Disable). Power Exhaust test can operate simultaneously with other Service Test Points.

Economizer Test

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This point allows the board’s economizer output to be manually controlled from 0 to 100 % Open. Economizer test can operate simultaneously with other Service Test Points.

Analog Output 2 Test

This test point activates the AO2 0-10vdc analog output at J22. These rooftops do not use this output, therefore this test is not used.

NOTE: Service Test Mode does not timeout. Be sure to turn off test mode or cycle power to the RTU to return to normal operation.

Configuration

The RTU Open controller’s configuration points effect the unit’s inputs and operation. Review and understand the meaning and purpose of each configuration point before changing it from the factory default value. Use the RTU Open Start-up Sheet during configuration; fill in changed values if changed from factory default. There are three main configurations menus: SETPOINT, UNIT, and SERVICE. Each configuration point is described below under its according menu. See Appendix A for BACview menu structure.

Setpoint

Occupied Heating Setpoint - The heating setpoint the

controller maintains during the occupied period.

Range = 40-90_F Default = 70_F

Occupied Cooling Setpoint – The cooling setpoint the controller maintains during the occupied period.

Range = 55-99_F Default = 76_F

Unoccupied Heating Setpoint – The heating setpoint the controller maintains during the unoccupied period.

Range = 40-90_F Default = 55_F

Unoccupied Cooling Setpoint – The cooling setpoint the controller maintains during the unoccupied period.

Range = 45-99_F Default = 90_F

Effective Heating Setpoint – The current setpoint value heating operation will control to.

Range = 0-120_F

Effective Cooling Setpoint – The current setpoint value cooling operation will control to.

Range = 0-120_F

Optimal Start - The earliest time prior to occupancy, at which the Optimal Start function may begin to adjust the effective setpoints. Setting this to 0 will disable optimal start.

Range = 0-4 hours Default = 4 hours

Occ Relative Humidity Setpoint – The space RH setpoint the controller maintains during the occupied period.

Range = 0 to the Unocc RH setpoint Default 60%

Unocc Relative Humidity Setpoint – The space RH setpoint the controller will maintain during the unoccupied period.

Range = 30-100% Default = 95%

DCV Max Ctrl Setpoint – The difference between indoor and outdoor CO ventilation damper position.

Range = 0-9999ppm Default = 650ppm

Power Exhaust Setpoint – When the economizer damper position opens above this point the power exhaust operation will begin. When the damper position falls below this point and 5% lower the power exhaust will shutdown.

Range = 20-90% Default = 50%

NOTE: This point is only used when Continuous Occupied Exhaust = NO

level which results in maximum

Unit

Fan Mode – Sets the operation of the indoor fan when not

in cooling or heating mode. Refer to fan operation for details on each operation.

Range = Auto, Continuous, or Always On Default = Continuous

Power Fail Restart Delay - Sets how long the controller delays normal operation after the power is restored. Typically used to prevent excessive demand when recovering from a power failure

Range = 0-30 sec Default = 5 sec

Fan Off Delay – Time delay in which the fan will continue run after being commanded off.

Range = 10-300sec Default = 90sec

Minimum Cooling SAT – The supply air temperature must remain above this value to allow cooling with the economizer and/or compressors. There is 5_Fplusand minus deadband to this point. If the SAT falls below this value during cooling a compressor stage will be removed and/or the economizer will return to minimum position.

Range = 45-75_F Default = 50_F

Maximum Heating SAT – The supply air temperature must remain below this value to allow heating. There is 5_Fplus and minus deadband to this point. If the SAT falls below this value during heating the heat stages will begin to decrease until the SAT has dropped below this value.

Range = 85-150_F Default = 120_F

Vent Dmpr Pos / DCV Min Pos – Minimum damper position for ventilation during the occupied period

Range = 0-100% open Default = 20% open

DCV Max Vent Damper Pos – This is the greatest position the economizer can open to while trying to control the indoor air quality levels

Range = 0-75% open Default = 50% open

S Fan Service Alarm Timer – The timer set for the Supply Fan Runtime Alarm. After the number of hours set on this point is exceeded the corresponding alarm will be generated, and must be manually cleared in the maintenance menu after the maintenance has been completed. The timer will then begin counting its runtime again for the next due maintenance.

Range = 0 to 9999 hr Default = 600 hr

NOTE: If set to 0 hr this setpoint is disabled and its alarm will never be generated.

Comp 1 Service Alarm Timer – The timer set for the Compressor 1 Runtime Alarm. After the number of hours set on this point is exceeded the corresponding alarm will be generated, and must be manually cleared in the maintenance menu after the maintenance has been completed. The timer will then begin counting its runtime again for the next due maintenance.

Range = 0 to 9999 hr Default = 0 hr

NOTE: Default = 0 hours, if set = 0 hr this point is disabled and its alarm will never be generated.

Comp 2 Service Alarm Timer – The timer set for the Compressor 2 Runtime Alarm. After the number of hours set on this point is exceeded the corresponding alarm will be generated, and must be manually cleared in the maintenance menu after the maintenance has been completed. The timer will then begin counting its runtime again for the next due maintenance.

Range = 0 to 9999 hr Default = 0 hr

NOTE: Default = 0 hours, if set = 0 hr this point is disabled and its alarm will never be generated.

Filter Service Alarm Timer – The timer set for the Dirty Filter Alarm. After the number of hours set on this point is exceeded the corresponding alarm will be generated, and must be manually cleared in the maintenance menu after the maintenance has been completed. The timer will then begin counting its runtime again for the next due maintenance.

Range = 0 to 9999 hr Default = 600 hr

NOTE: Default = 600 hours, if set = 0 hr this point is disabled and its alarm will never be generated.

Pushbutton Override – Set to enable or disable the pushbutton override function of the locally installed space sensor.

Range = Disable/Enable Default = Enable

Setpoint Adjustment – Set to enable or disable the setpoint adjustment function of the locally installed space sensor.

Range = Disable/Enable Default = Enable

Setpoint Adjustment Range - Sets the slider range of a space sensor (with built in function). The slider is used to offset the control setpoint.

Range = 0 to 5_F Default = 5_F

Cooling Lockout Temperature - This defines the minimum outdoor air temperature that cooling mode can be enabled and run. If the OAT falls below this number during cooling the compressors will be de-energized.

Range = 0-80_F Default = 45_F

Economizer High OAT Lockout Temp – If the outdoor air temperature rises above this value, economizer cooling will be disabled and dampers will return and stay at minimum position.

Range = 55-80_F Default = 75_F

HP Rev Cycle Lockout Temp – If the outdoor air temperature falls below this value, the compressors will not be allowed to run for heating. Unit Type must be set to Heat pump for this to be active.

Range = -20-30_F Default = -3_

Heating Lockout Temperature – This defines the maximum outdoor air temperature that heating mode can be enabled and run. If the OAT rises above this number during heating the heat stages will be de-energized.

Range = n/a Default = 65_F

Pre- Occupancy Purge - Enables or disables the use of a purge cycle immediately prior to the start of a scheduled occupied period.

Range = Enable/Disable Default = Disable

Purge Time - The maximum amount of time used for a pre- occupancy purge.

Range = 0 to 240 minutes Default = 60 minutes

Unocc Free Cool Enable – Set to enable or disable the economizer for night time free cooling (NTFC) operation.

Range = Disable/Enable Default = Disable

Setpoint Separation – Sets the minimum separation gap in which setpoints can be set.

Range = 2-10_F Default = 5_F

Occupancy Source – Tells the controller which method of occupancy control to use in determining occupancy of the rooftop. Refer to Occupancy in the operation section for detail on each specific operation function.

Range = Always Occupied, BACnet Schedule,

BAS On/Off, or Remote Occ Input

Default =Always occupied

Inputs

Input 1 Function – This input is an analog input and can

be configured to be one of four different inputs: No Sensor, IAQ Sensor, OAQ Sensor, or Space RH Sensor. Input 1 is wired to pin J4- 4,5,6. Default = No Sensor

Input 2 Function – This input is an analog input and can be configured to be one of four different inputs: No Sensor, IAQ Sensor, OAQ Sensor, or Space RH Sensor. Input 2 is wired to pin J4- 1,2,3. Software Default = No Sensor Factory Default = IAQ Sensor with factory installed CO sensor

NOTE: For Inputs 1 & 2, if using Bryant air quality sensors do not use 24Vdc from RTU Open board. External 24Vdc power supply required.

Input 3 - This input is a discrete input and can be configured to be one of six different functions: No Function, Compressor Safety, Fan Status, Filter Status, Remote Occupancy, or Door Contact. This input can also be configured to be either a Normally Open (N/O) or a Normally Closed (N/C) switch. Input 3 is factory wired to pin J1-2. Field accessories can be wired to its parallel pin J5-5. Factory Default = Compressor Safety and N/O

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Input 5 - This input is a discrete input and can be configured to be one of six different functions: No Function, Fire Shutdown, Fan Status, Filter Status, Remote Occupancy, or Door Contact. This input can also be configured to be either a Normally Open (N/O) or a Normally Closed (N/C) switch. Input 5 is factory wired to pin J1-10. Field accessories can be wired to its parallel pin J5-3. Software Default = Fire Shutdown and N/C Factory Default = Fire Shutdown and N/O

Input 8 - This input is a discrete input and can be configured to be one of six different functions: No Function, Enthalpy Switch, Fan Status, Filter Status, Remote Occupancy, or Door Contact. This input can also be configured to be either a Normally Open (N/O) or a Normally Closed (N/C) switch. Input 8 is factory wired to pin J2-6. Field accessories can be wired to its parallel pin J5-1. Software Default = Enthalpy Switch and N/O Factory Default = No Function and N/O without installed enthalpy sensor

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Input 9 - This input is a discrete input and can be configured to be one of six different functions: No Function, Humidistat, Fan Status, Filter Status, Remote Occupancy, or Door Contact. This input can also be configured to be either a Normally Open (N/O) or a Normally Closed (N/C) switch. Input 9 is factory and field wiredtopinJ5-7. Factory Default = Humidistat and N/O

Space Sensor Type – This tells the controller what type of space sensor is installed to run the unit. The three types that can be used are: a standard 10k Type II thermistor (T55), sensor with a setpoint offset slider bar (T56), or a communicating sensor (SPT Sensor).

Range = T55, T56 (Use for T59), or SPT Sensor Default = T55

T5x Override Duration – Sets the override time duration the unit will change from unoccupied to occupied when the override button is pushed on the space sensor.

Range = 0-24 hours Default = 1 hour

Service

Unit Type – This tells the control what type of unit it is

controlling. Heat/Cool refers to gas and electric heat units. HP O/B Ctrl refers to a heat pump unit which requires reversing valve control. HP Y1/W1 Ctrl refers to a heat pump unit whose reversing valve is built in to the cooling or heating call.

Factory Default = Heat/Cool for non-heat pump units, or HP Y1/W1 Ctrl for heat pump units.

Compressor Stages – This refers to the number of mechanical cooling stages available on a specific unit. Set this point to “One Stage” if there is one compressor in the specific unit, set to “Two Stage” if there are two compressors in the unit, and set to “None” if economizer cooling ONLY is desired.

Factory Default = “One Stage” for 1 compressor units, or “Two Stages” for 2 compressor units

factory

Economizer Exists – This tells the controller if there is an economizer installed on the unit.

Factory Default = NO if no economizer, or YES if there is an economizer installed

Reversing Valve Output – Sets the heat pump’s (HP O/B Ctrl type) reversing valve function. O output type refers to a valve that is energized for cooling, and B output type refers to a valve that is energized for heating. 548J and 549J heat pumps do not require O/B signals.

Default = O output type

Fan Control - The type of fan control used on the unit.

Range = Single Speed, Two Speed,

or Variable Speed

Default = Single Speed, or Two Speed for units

with the two speed fan option

Heat Type – Tells the controller which type of heat the unit is capable of. Electric is any unit without gas and a Gas unit is one which requires gas input for heating. 548J and 549J heat pumps should be configured for Electric.

Factory Default = Electric for cooling only units and heat pumps, or Gas for gas units.

Number of Heat Stages – Tells the controller how many heat stages outputs are available for use. See configuration in Appendix A for details on specific unit configuration.

Factory Default = 1 for single heat stage units, 2 for duel stage units, or 0 for cooling only units.

RH Controls - Enables dehumidification control if an RH sensor is available and the unit has the Perfect Humidity dehumidification option installed.

Range =Disable/Enable Default = Disable

(Enabled with Perfect Humidity option)

Continuous Occupied Exhaust – This point tells the controller when to run the power exhaust if equipped on the unit. If set to YES, the power exhaust will be on all the time when in occupied mode and will be off when in unoccupied mode. If set to NO the power exhaust will be controlled by the Power Exhaust Setpoint.

Default = NO

DCV Control - Enables demand controlled ventilation (DCV) if valid CO2 sensor value is available and the unit has an economizer installed.

Range = Disable/Enable Default = Disable

Indoor CO

value when the board reads 4 mA at input 1 or 2.

Sensor Value @ Min mA – Sets the indoor

Range = 0 to 9999 ppm Default = 0 ppm

Indoor CO

value when the board reads 20 mA at input 1 or 2.

Sensor Value @ Max mA – Sets the indoor

Range = 0 to 9999 ppm Default = 2000 ppm

Outdoor CO

value when the board reads 4 mA at input 1 or 2.

Sensor Value @ Min mA – Sets the outdoor

Range = 0 to 9999 ppm Default = 0 ppm

Outdoor CO

value when the board reads 20 mA at input 1 or 2.

Sensor Value @ Max mA – Sets the outdoor

Range = 0 to 9999 ppm Default = 2000 ppm

NOTE: The indoor and outdoor min and max mA setting are used to set the linear curve of mA vs. PPM.

Clockset

This submenu screen allows you to set the date and time manually. The Daylight Savings Time (DST) can also be changed here. The date and time is automatically set whenever software is downloaded. The clock is a 24 hour clock and not am/pm. The time should be verified (and maybe changed) according to unit location and time zone.

Factory Default = Eastern Standard Time

USERPW

This submenu screen allows you to change the user password to a four number password of choice. The User password change screen is only accessible with the Administrator Password (1111). The ADMIN password will always override the user password.

Factory Default = 0000 Range = 0000-9999

OPERATION

The RTU Open will control the compressors, economizer and heating outputs based on its space temperature input and setpoints. It can also be controlled by a building control system or zoning system. An optional CO sensor mounted in the space can influence the economizer minimum position. The RTU Open has a hardware clock that can allow scheduling for stand-alone operation. The RTU Open’s default is to control to occupied setpoints all the time, until a type of occupancy control is set. The following sections describe the operation for the functions of the RTU Open.

Occupancy

Occupancy is the fundamental overall control of equipment. The unit can be in one of two states: Occupied or Unoccupied. These are usually referred to as periods because they represent periods of any given day. Before RTU Open can operate specific functions of the equipment it is installed on, occupancy must be determined. There are four different ways RTU Open can determine occupancy. These are described below and selected by the configuration point Occupancy Source.

Always Occupied (Default)

The unit will not determine occupancy and continuously run in the occupied state or period. RTU Open ships from the factory with this setting to allow immediate operation.

BACnet Schedule

When Occupancy Source is set to BACnet Schedule, RTU Open will use a schedule to change occupancy based upon a day of week and a time period. Local time and date should be set in the RTU Open for this function to operate properly. This function applies if setting a local schedule in the RTU Open or an Open zoning system. An Open network schedule can override a local schedule within the unit. A space sensor push button override is only available when running a local or Open schedule. The push button will override an unoccupied period to occupied for the specified time duration.

IAQ

BAS On/Off

When Occupancy Source is set to BAS On/Off, RTU Open follows occupancy based on an On/Off command to the BAS ON/OFF software point. An on command sets the occupancy to occupied, and an off command sets it to unoccupied. The Building Automation System can be speaking BACnet, Modbus, N2, or LON and is writing to the BAS On/Off point in the open protocol point map.

Remote Occ Input

When Occupancy Source is set to Remote Occ Input, RTU Open follows occupancy based on the remote occupancy switch input. Inputs 3, 5, 8, and 9 on plug J5 can be hard-wired to command the unit’s occupancy. The Occupancy Contact point show the status as on or off, on is occupied and off is unoccupied.

Indoor (Supply) Fan

The indoor fan can be configured to operate in three different manors. The configuration point Fan Mode determines how the fan will run. The fan will always be disabled if a fire shutdown or safety chain alarm is active. A valid space temperature and supply air temperature must be available for the fan to operate. There is a unit start delay in effect when the unit is transitioning from unoccupied to occupied. The following describes specific fan operation based on the Fan Mode configuration value.

Auto

When Fan Mode is set to Auto, RTU Open will cycle the fan on and off based on the demand for heating, cooling, and dehumidification. There is a configurable fan off delay that is upheld before shutting the fan off after conditioning has ended.

Continuous

When Fan Mode is set to Continuous, RTU Open will cycle the fan based on occupancy. The fan will run the whole occupied period and operate in the auto mode during the unoccupied period.

Always On

When Fan Mode is set to Always On, RTU Open will run the fan all the time regardless of occupancy or demand.

The RTU Open has an optional Supply Fan Status input to provide proof of airflow. If this is enabled, the point will look for a contact change whenever the Supply Fan Relay is on. If it is not enabled then it will always be the same state as the Supply Fan Relay. The cooling, economizer, heating, dehumidification, CO routines will use this input point for fan status.

and power exhaust

Cooling

The compressor outputs are controlled by the Cooling Control PID Loop and Cooling Stages Capacity algorithm. They will be used to calculate the desired number of stages needed to satisfy the space by comparing the Space Temperature (SPT) to the Occupied Cool Setpoint plus the T56 slider offset when occupied and the Unoccupied Cool Setpoint (UCSP) plus the T56 slider offset, if unoccupied. The economizer, if available, will be used for cooling in addition to the compressors. The following conditions must be true in order for this algorithm to run:

S Indoor Fan has been ON for at least 30 seconds.

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S Heat mode is not active and the time guard between

modes equals zero.

S If occupied and the SPT > (occupied cool setpoint plus

the T56 slider offset).

S Space Temperature and supply air temperature values

are available.

S If it is unoccupied and the SPT > (unoccupied cool

setpoint plus the T56 slider offset). The indoor fan will be turned on by the staging algorithm.

S If economizer is available and active and economizer

open > 85% and SAT > (SAT low limit + 5_F) and SPT > effective set point + 0.5_F.

Economizer is available, but not active

Economizer is not available

S OAT > DX Lockout temperature

If all of the above conditions are met, the controller uses a

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PID logic loop to energize or de- energize compressors to satisfy the cooling demand.

There is a fixed 3- minute minimum on time and a 5- minute off time for each compressor output and a 3- minute minimum time delay between staging up or down.

Any time the compressors are running the RTU Open will stage down the compressors if the SAT becomes less than the cooling low supply air setpoint. After a compressor is staged off, it may be started again after a normal time- guard period and the supply air temperature has increased above the low supply air setpoint.

Supply Fan

The RTU Open supply fan may be configured for 1 of 3 Fan Control modes:

S Single - The fan operates at one speed only and

provides on/off operation

S Two Speed - The fan operates at 1 of 2 speeds depending

on the mode of operation and load conditions. During fan only or single stage cooling, the fan operates at low speed. During heating, dehumidification, second stage cooling, or if maximum economizer operation is required, the fan operates at high speed.

S Variable Speed - The fan operates at a variable speed

to meet the load conditions and SAT safety requirements to provide maximum energy savings by minimizing fan horsepower consumption. Fan speed is NOT controlled by static pressure.

The RTU Open supply fan may be configured for 1 of 3 Fan Modes:

S Auto - The fan cycles on/off in conjunction with

heating or cooling.

S Continuous - The fan runs continuously during

occupancy and intermittently during unoccupied periods with heating and cooling.

S Always On - The fan runs continuously regardless of

occupancy or calls for heating and cooling.

Occupancy can be determined by BACnet schedules, BAS schedules, or in response to a remote occupancy switch.

A Fan Off Delay allows the supply fan to continue operating after heating or cooling stops.

If the following alarms are active, the fan turns off immediately, regardless of the occupancy state or demand:

S Fire Shutdown S Safety chain S SAT alarm S SPT alarms

The RTU Open does not include smoke-control functions such as a smoke- purge, zone- pressurization, or smoke-ventilation. Each of these modes require a field-designed circuit to operate the following by local fine codes:

S RTU supply fan S RTU economizer S RTU power exhaust

The RTU Open many be configured to accept a Supply Fan Status input to provide proof the supply fan is operating. When enabled, a loss or lack of fan status will stop heating and cooling operation.

A supply Fan Alarm Service Timer function is available to track the number of supply fan run hours and generate an alarm when the accumulated runtime exceeds the set threshold.

Economizer

The Economizer dampers are used to provide free cooling and Indoor Air Quality, if optional CO when the outside conditions are suitable.

The following conditions must be true for economizer operation:

S Indoor Fan has been on for at least 30 seconds. S Enthalpy is Low if the Enthalpy input is enabled. S SAT reading is available. S OAT reading is available. S SPT reading is available. S OAT <= High OAT economizer lockout configuration

(default = 75).

S OAT <= SPT

If the RTU Open is configured for VFD or 2- speed fan, and the fan is on high speed or is configured for single- speed fan, and any of the preceding conditions are not true, the economizer will be set to the Vent Dmpr Pos/DCV Min Pos setpoint. If it is configured for VFD or 2- speed fan, and the fan is on low speed, and any of the preceding conditions are not true, the economizer will be set to the Low Fan Econ Min Pos.

If any of the mentioned conditions are not true, the economizer will be set to its configured minimum position. The minimum damper position can be overridden by the IAQ routine described later in this section.

If the above conditions are true, the Economizer control will calculate a damper position starting with a minimum vent position and based on current space temperature and

sensor is installed,

a setpoint that is halfway between the effective cool and heat setpoints. If the SAT drops below the cooling low supply air setpoint (+ 5_F), the economizer will ramp down to minimum position.

Power Exhaust

RTU Open may enable and disable an exhaust fan based on either the controller’s occupancy or its economizer damper position. If configured for continuous occupied operation, it will be energized whenever the controller is in the occupied mode and disabled when in the unoccupied mode. If configured for damper position control, it will be energized whenever the economizer exceeds the power exhaust setpoint and disabled when the economizer drops below the setpoint by a fixed hysteresis of 10%. If the Fan Control is set to Two Speed or Variable Speed, the Power Exhaust Setpoint is automatically adjusted based on the fan’s air delivery. The Calculated PE Setpoint used for control is displayed in the Maintenance section.

Pre-Occupancy Purge

Pre- Occupancy Purge allow the rooftop equipment with an economizer damper to utilize outdoor air to purge the space of contaminates just prior to the beginning of the of the occupied period.

The following conditions must be true for pre- occupancy purge to operate:

S Pre- Occupancy Purge set to Enable S Economizer Exists set to Yes S A local time schedule is configured S The local time schedule is currently unoccupied and the

remaining them is less than the configured Purge Time

When the RTU Open schedule is unoccupied and the remaining unoccupied time is less than the purge time, the supply fan starts. The economizer damper opens to the configured Economizer Purge Min Pos. The RTU Open continues to operate in this mode until the occupied start time is reached. The Pre-Occ Purge state is displayed in the Maintenance section.

Heating

The heat outputs are controlled by the Heating Control PID Loop and Heating Stages Capacity algorithm. They will be used to calculate the desired number of stages needed to satisfy the space by comparing the SPT to the Occupied Heat Setpoint the T56 slider offset when occupied and the Unoccupied Heat Setpoint plus the T56 slider offset if unoccupied. The following conditions must be true in order for this algorithm to run:

S Indoor Fan has been ON for at least 30 seconds. S Cool mode is not active and the time guard between

modes equals zero.

S If occupied and SPT <(occupied heat setpoint plus T56

slider offset)

S SPT and supply air temperature values are available S If it is unoccupied and the SPT < (unoccupied heat

setpoint plus T56 slider offset). The indoor fan will be turned on by the staging algorithm.

S OAT < High OAT lockout temperature.

If all of the above conditions are met, the controller uses a PID logic loop to energize or de- energize heat outputs to satisfy the heat demand. If the SAT begins to exceed the high supply air setpoint, a ramping function will cause the Heat Stages Capacity algorithm to decrease the number of stages until the SAT has dropped below the setpoint. There is a fixed one minute minimum on time and a one minute off time for each heat output. Heat staging has a 2 minute stage up and 30 second stage down delay.

Heat pump operation is the same as above except for what is explained below. There is a fixed 3 minute on and 5 minute off time for the first heat stage output, and a one minute on and one minute off time for the second heat stage output. There is a 10 minute minimum stage up delay if the heat demand is <= 3_F, and a 2 minute minimum stage up delay if heat demand is > 3_F. T he stage down delay is still 30 seconds. If the Compressor Safety Alarm is active, the second heat stage will come on with the first stage with no delay.

Indoor Air Quality

If the optional indoor air quality sensor is installed, the RTU Open will maintain indoor air quality within the space at the user configured differential set point. The set point is the difference between the indoor air quality and an optional outdoor air quality sensor. If the outdoor air quality is not present then a fixed value of 400ppm is used. The following conditions must be true in order for this algorithm to run:

S The mode is occupied. S Indoor Fan has been ON for at least 30 seconds. S Indoor Air Quality sensor has a valid reading.

As air quality within the space changes, the minimum position of the economizer damper will be changed thus allowing more or less outdoor air into the space depending on the relationship of the indoor air quality to the differential setpoint. If all the above conditions are true, the IAQ algorithm will run and calculates an IAQ minimum position value using a PID loop. The IAQ minimum damper position is then compared against the user configured economizer minimum position and the greatest value becomes the final minimum damper position of the economizer output.

If the calculated IAQ minimum position is greater than the DCV Max Vent Damper Pos configuration, then it will be clamped to the configured value.

Dehumidification

The RTU Open will provide occupied and unoccupied dehumidification only on units that are equipped with the Perfect Humidityt option from the factory. This function requires a space relative humidity sensor or a humidistat for control. The space relative humidity senor can be installed and configured as one of the two analog input channels (inputs 1 or 2 on J4), or a humidistat can be installed and configured as switch input 9 on J5. When using a relative humidity sensor to control dehumidification, occupied or unoccupied dehumidification setpoints are use accordingly. When using a humidistat, setpoints are not used and the dehumidification call comes when the humidistat indicates high humidity.

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When the indoor relative humidity becomes greater then the dehumidification setpoint (or switches from low to high), a dehumidification demand will acknowledged. Compressor state is monitored and time guards are honored. If a compressor was just turned off prior to the dehum call the dehumidification output will be delayed the 5 minute minimum off time of the compressor. When ok to dehumidify, the dehumidification output (J11- 7, 8) will be energized. This will bring on the supply fan (at high fan speed if Fan Control is set to “Two Speed”), all compressors, and the dehumidification relay placing the unit in Hot Gas Reheat dehumidification mode. If dehumidification is called for during cooling or cooling is called for during dehumidification, the unit will run in Subcooling dehumidification mode. Individual unit circuits can be in different dehumidification modes based on the demand. Refer to the base units operation for additional information.

NOTE: There is a fixed 5% hysteresis that the indoor relative humidity must drop below the active setpoint to end the dehumidification mode and de-energize the

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dehumidification output. The output will also de- energize if the fan relay is de-energized.

Demand Limit

If the RTU Open receives a level 1 (one degree offset), 2 (two degree offset), or a 3 (4 degree offset) to the BACnet demand limit variable, the controller will outwardly expand the heating and cooling setpoints by the configured demand limit setpoint value and remain in effect until the BACnet demand limit variable receives a 0 value.

Unoccupied Free Cooling

When the unit is equipped with an economizer, the control can run a night time free cooling (NTFC) mode called Unocc Free Cooling. In this mode the damper is utilized to bring in outdoor air for free cooling during unoccupied periods. The following conditions must be true for unoccupied free cooling to operate:

S Unocc Free Cool Enable set to Enable S The system is unoccupied S The outside air temperature is below the Economizer

High OAT Lockout Temp

S The outside air temperature is less than the space

temperature

S Enthalpy (if enabled) is Low

When the RTU Open schedule is unoccupied and the space temperature rises at least 1 degree above the Occupied Cooling Setpoint, the supply fan starts. The economizer damper opens as necessary to cool the space. The RTU Open continues to operate in this mode until the space is satisfied or the outside air conditions are no longer suitable for free cooling.

Optimal Start

The RTU Open may utilize Optimal Start, which adjusts the effective setpoints to achieve the occupied setpoints by the time scheduled occupancy begins. The Optimal Start recovery period may begin as early as 4 hours prior to occupancy. The algorithm works by moving the

unoccupied setpoints toward the occupied setpoints. The rate at which the setpoints move is based on the outside air temperature, design temperatures, and capacities. The following conditions must be true for unoccupied free cooling to operate:

S Under SETPOINT, Optimal Start Value must be set

greater than zero and less than or equal to four (0 disables Optimal Start.)

S The system is unoccupied S The RTU Open has a valid outside air temperature S The RTU Open is running occupancy based on a

schedule, were next time occupied is known.

Fire Shutdown

Fire Shutdown may be configured on Binary Input 5. A typical application involves a smoke detector or fire shutdown contact, which, when active, immediately shuts down equipment operation.

Compressor Safety

Compressor Safety may be configured on Binary Input 3. A compressor safety tripped indicator circuit is available on most Bryant rooftop equipment. A Compressor Safety Alarm indicates that the equipment requires attention. Cooling, heating, and supply fan outputs are not interrupted except where the RTU Open is configured for Heat Pump operation. When configured for Heat Pump, and in the heating mode, a compressor safety fault will cause the available stages of electric heating to be enabled in place of mechanical heating. Normal operation resumes when the compressor safety circuit is de-energized.

Fan Status

Fan Status may be configured on any unused binary input channel. A typical application would be an airflow switch, current sensing relay, or other device that provides a supply fan running verification. Enabling this function displays the supply fan’s status on the equipment graphic. If the controller loses fan status during operation, heating and cooling are disabled, the economizer damper (if available) is closed, and an alarm for loss of status is indicated. If the fan status is on when the controller is commanding the fan off, the unit remains in the off state. An alarm is generated indicating that the fan is running when it should be off.

Filter Status

Filter status may be configured on any unused binary input channel. A typical application is a differential pressure switch that senses the pressure drop across a filter bank. When the pressure across the filter bank exceeds the setpoint of the differential pressure switch, the Filter status is displayed as Dirty on the controller graphic. An alarm indicates a dirty filter.

Door Switch

A Door Contact may be configured on any unused binary input. A typical application is an occupancy sensor mounted within the space served by a single zone rooftop. Door Contact disables mechanical cooling and electric or gas heating, when active. Economizer cooling, if available, continues to operate.

TROUBLESHOOTING

General

The RTU Open controller acts as an intelligent imbedded thermostat to the rooftop unit, but can be monitored and controlled from a 3rd party network. This causes the system as a whole to be troubleshot from three points of view. The three parts to the system are the rooftop unit, the Open controller, and the network connected. Determining which part needs to be troubleshot is the first step.

The Open controller can be used to troubleshoot the rooftop unit and/or itself with service test, communicating LED’s, and built in alarms. Disconnecting the RTU Open from the network may also help troubleshooting the controller and rooftop unit. Third Party Network troubleshooting may also be required. For base unit troubleshooting, refer to specific base unit Service Maintenance manual.

There is an on- board battery that is used for RAM and clock back- up. It is a 3- volt lithium battery (CR2032). The average life is 7 years with a minimum of 10,000 hours of back- up. When the RTU Open board is powered up, the battery is not being used. If power is lost, the battery backs up the time clock. Battery replacement should be done with the board powered up.

Thermistor Troubleshooting

RTU Open uses thermistors to sense temperatures for control operation of the unit. Resistances at various temperatures are listed in Table 2. Thermistor pin connections are shown in Table 1. Thermistors are used for supply air temperature (SAT), outdoor air temperature (OAT), and space temperature (SPT) and all must be a 10 kilo-ohm type II sensor.

To check accuracy, use a high quality digital volt-ohmmeter. Connect the meter to the thermistor leads to obtain a resistance value. Use Table 2 to convert that resistance to a temperature. Next step is to measure temperature at probe location with an accurate thermocouple-type temperature-measuring instrument. Temperature measured by thermocouple and temperature determined from thermistor voltage reading should be close, within 5_F if care was taken in applying thermocouple and taking readings. If a sensor must be corrected, use the RTU Open’s calibration function to offset the temperature reading.

Table 2 – Thermistor Resistance vs Temperature Values

for Space Temperature Sensor, Supply Air Temperature

Sensor, and Outdoor Air Temperature Sensor

TEMP

(C)

-40 -40 335,651

-35 -31 242,195

-30 -22 176,683

-25 -13 130,243

-20 -4 96,974

-15 5 72,895

-10 14 55,298

-5 23 42,315 0 32 32,651 5 41 25,395

10 50 19,903 15 59 15,714 20 68 12,494 25 77 10,000 30 86 8,056 35 95 6,530 40 104 5,325 45 113 4,367 50 122 3,601 55 131 2,985 60 140 2,487 65 149 2,082 70 158 1,752

TEMP

(F)

RESISTANCE

(Ohms)

Software Version

During Start-up and throughout the life of the equipment, it may be necessary to obtain the RTU Open’s software version. To do this a Modstat must be run on the controller. This can be done from the BACview user interface by holding the function (FN) key and pressing the period (.) key. An example of the beginning lines of a Modstat is shown in Fig. 16. The application software version shows the current running software of the board. In this case the rtu_open-20100409 refers to RTU Open software version 20100409. This 8 digit number refers to a date (YYYYMMDD). The first 4 digits are the year (2010) and the month and day (0409), so this version is

April 9

2010.

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C10825

Fig. 16 - Example Modstat

Communication LED’s

The LED’s indicate if the controller is speaking to the devices on the network. The LED’s should reflect communication traffic based on the baud rate set. The higher the baud rate the more solid the LED’s will appear.

Table 3 – LED’s

The LED’s on the RTU Open show the status of certain functions

If this LED is on... Status is...

Power The RTU Open has power

Rx The RTU Open is receiving data from the network segment

Tx The RTU Open is transmitting data over the network segment

DO# The digital output is active

The Run and Error LED’s indicate control module and network status

If Run LED shows... And Error LED shows... Status is...

2 flashes per second Off Normal

2 flashes per second 2 flashes, alternating with Run LED Five minute auto - restart delay after system error

2 flashes per second 3flashes,thenoff Control module has just been formatted

2 flashes per second 4 flashes, then pause Two or more devices on this network have the same

2 flashes per second On Exec halted after frequent system errors or control pro-

5 flashes per second On Exec start- up aborted, Boot is running

5 flashes per second Off Firmware transfer in progress, Boot is running

7 flashes per second 7 flashes per second, alternating with

Run LED

14 flashes per second 14 flashes per second, alternating with

Run LED

On On Failure. Try the following solutions:

MSTP network address

grams halted

Ten second recovery period after brownout

Brownout

- Turn the RTU Open off, then on.

- Format the RTU Open.

- Download memory to the RTU Open.

- Replace the RTU Open.

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Table4–RTUOpenAlarms

POINT NAME

Safety Chain safety_alarm Immediate Shutdown Automatic

Fire Shutdown fire_alarm Immediate Shutdown Automatic

Supply Fan Failure sfan_fail_alarm

Supply Fan in Hand sfan_hand_alarm Ramp down Operations Automatic

Compressor Safety comp_alarm Alert Generated Automatic Compressor would not start

Space Temp Sensor spt_fail Ramp down Operations Automatic

Supply Air Temp Sensor sat_alarm Economizer Disabled Automatic

Outdoor Air Temp Sensor Alarm

Space Relative Humidity Sensor

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IAQ Sensor iaq_alarm No IAQ Operation Automatic

OAQ Sensor oaq_alarm Set OAQ to 400 Automatic

Space Temperature spt_alrm_status Alert Generated Automatic

Alarming Tem p e r a t u r e

Alarm L imit Exceeded

High Supply Air Tem p e r a t u r e

Low Supply Air Tem p e r a t u r e

Setpoint Slider slidepot_alarm Set Offset to zero Automatic

Switch Configuration di_cfg_alarm

Analog Input Configuration

High Space Relative Humidity

Low Space Relative Humidity

High CO2 co2_alarm Alert Generated Automatic

Supply Fan Runtime sfan_rntm_alarm Alert Generated zero the timer

Compressor 1 Runtime comp1_rntm_alarm Alert Generated zero the timer Compressor run time limit is exceeded

Compressor 2 Runtime comp2_rntm_alarm Alert Generated zero the timer Compressor run time limit is exceeded

Filter filter_alarm Alert Generated

BACnet Object

NAME

oat_alarm

sprh_alarm Dehumidification disabled Automatic

spt_alrm_temp

spt_alrm_lmt

sat_hi_alarm Alert Generated Automatic

sat_lo_alarm Alert Generated Automatic

ai_cfg_alarm Disable 4 selectable analog inputs Configure correctly

sprh_hi_alarm Alert Generated Automatic

sprh_lo_alarm Alert Generated Automatic

ACTION TAKEN BY

CONTROL

Immediately disable Operation

Economizer and Low ambient DX cooling lockout disabled.

Shows temperature that caused alarm

Shows the limit that was exceeded

Disable only wrong switch functions

RESET METHOD PROBABLE CAUSE

Over load Indoor Fan or Electric Heater overheat

Smoke detected by smoke detector or configuration incorrect

Tripped Circuit Breaker, Broken bel t,

Automatic

N/A N/A

Configure correctly

Automatic / reset timer

Bad indoor fan motor, Configuration incorrect, Bad fan status switch.

Bad Fan Status Switch, Configuration incorrect.

Faulty, shorted, or open thermistor caused by wiring error or loose connection.

Sensor reading is out of range. Bad sensor, bad wiring, or sensor configured incorrectly.

Space value is less then the low allowed value or Space val u e is greater then the high allowed value

SAT is greater then the configuration for more then 5 minutes

SAT is less then the configuration for more then 5 minutes

STO sensor is open for more then 5 seconds

Morethenonediscreteinputis configured to provide the same function.

More then one analog input is configured to provide the same function.

IRH is greater then the configuration for more then 15 minutes

IRH is less then the configuration for more then 5 minutes

CO2 reading is above the configuration for 1 minute

Supply fan run time exceeded user defined limit

DirtyFilter,supplyfanruntime exceeded, filter switch configuration wrong.

Alarms

Alarms are provided to indicate a possible problem with the controller or unit. Alarms can be checked through a network and/or the local access device. All alarms are listed in Table 4 with name, object name, action taken by control, reset method, and possible cause. Some alarms can occur based on specific configurations.

Safety Chain Alarm

This alarm occurs immediately if the supply-fan internal overload trips or if an electric-heat limit switch trips. The Unit Status will be Shutdown and the System Mode will be Disable. All unit operations stop immediately and will not restart until the alarm automatically clears. There are no configurations for this alarm; it is all based on internal wiring. This alarm will not occur if Fire Shutdown Alarm is active. Normal operation resumes when the safety chain circuit is complete.

Fire/Smoke Shutdown Alarm

This alarm occurs immediately when the smoke detector senses smoke. The Unit Status will be Shutdown and the System Mode will be Disable. All unit operations stop immediately and will not restart until the alarm automatically clears. If there is not a smoke detector installed or the smoke detector did not trip, check input configurations. NOTE: The default function for input 5 is a normally open Fire Shutdown input.

Supply Fan Failure

This alarm occurs when the indoor fan is being command on and the fan status switch feedback is showing the fan off. This will end current operating mode and disable unit operation. This alarm requires a fan status switch to be configured on one of the inputs.

Supply Fan in Hand

This alarm occurs when the indoor fan is being commanded off and the fan status switch feedback is showing the fan is on. This will prevent any operating mode and disable unit operation. This alarm requires a fan status switch to be configured on one of the inputs.

Compressor Safety

This alarm indicates the base unit’s compressor safety circuit is energized. Cooling, heating, and supply fan outputs are not interrupted except when the RTU Open is configured for Heat Pump. Normal operation resumes when the compressor safety circuit is de-energized. If the Heat Pump is in the heating mode, it will automatically replace the compressor stage(s) with the equivalent number of auxiliary heat stages, as available.

For Heat Pump’s with O/B, when configured for two stages of aux heat and two compressors, Compressor 1 is replaced by Aux Heat Stage 1 and Compressor 2 is replaced by Aux Heat Stage 2. The compressor output stays on when the safety alarm is present. For cooling, the alarm indicates the compressors are down.

Space Temp Sensor

This alarm occurs if the space sensor wired to the RTU Open is disconnected or shorted for more than 10 seconds. When this occurs the Unit Status will be Shutdown and the System Mode will be Run. Sensor, sensor connections, wiring, board connection, and configurations should be checked for faults or errors. Alarm will reset automatically when cause is fixed.

Supply Air Temp Sensor

This alarm occurs immediately when the supply air temperature sensor wired to the RTU Open is disconnected or shorted. When this occurs the Unit Status will be Shutdown and the System Mode will be Run. Sensor, sensor connections, wiring, board connection, and configurations should be checked for faults or errors. Alarm will reset automatically when cause is fixed.

Outdoor Air Temp Sensor Alarm

This alarm indicates a shorted or open circuit in the OAT input. Cooling, heating, and supply fan operation continues. OAT lockouts will not operate while the sensor is in alarm. Economizer cooling and optimal start functions are disabled. Normal operation resumes when the controller detects a valid sensor.

Space Relative Humidity Sensor

This alarm indicates the mA input at the associated channel falls below 3.5 mA or rises above 21 mA. Cooling, heating, and supply fan operation continues, however, the controller’s Perfect Humidityt binary output is disabled until the fault condition is corrected.

IAQ Sensor

This alarm indicates the mA input at the associated channel falls below 3.5 mA or rises above 21 mA. Cooling, heating, and supply fan operation continues. However, the controller’s IAQ control function is disabled until the fault condition is corrected.

OAQ Sensor

This alarm indicates the mA input at the associated channel falls below 3.5 mA or rises above 21 mA. Cooling, heating, and supply fan operation continues. However, the controller’s IAQ control function uses 400ppm as the fixed outdoor air CO2 level until the fault condition is corrected.

Space Temperature

When Occupied, a Low Space Temperature alarm is generated if the space temperature falls below the lower limit or a High Space Temperature alarm is generated if the space temperature rises above the upper limit. When Unoccupied, an unoccupied low space temperature alarm is generated when the space temperature falls below the alarm configuration Unoccupied Low SPT Alarm Limit or an unoccupied high space temperature alarm is generated when the space temperature rises above the alarm configuration Unoccupied High SPT Alarm Limit.

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The following values are related to the Space Temperature alarm: Alarming Temperature – This variable displays the value of the space temperature that is in alarm and is only visible when the space temperature is in an alarm state. Alarm Limit Exceeded – This variable displays the value of the alarm setpoint that is exceeded by the alarming space temperature and is only visible when the space temperature is in an alarm state.

High Supply Air Temperature

This alarm indicates the supply air temperature exceeds the alarm configuration High SAT Alarm Limit for 5 minutes. This alarm is inhibited until the RTU has been running for 30 minutes to allow for system stabilization after startup.

Low Supply Air Temperature

This alarm indicates the supply air temperature falls below the alarm configuration Low SAT Alarm Limit for 5 minutes. This alarm is inhibited until the RTU has been running for 30 minutes to allow for system stabilization

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after startup.

Setpoint Slider

This alarm indicates an open circuit is detected at the setpoint adjustment input. This can only occur if the Space Sensor Type is set to T56. Note that only an open circuit results in an alarm. A short across this input offsets the setpoints negatively by the amount configured by configuration Setpoint Adjustment Range.

Switch Configuration

This occurs if more than one binary input (inputs 3, 5, 8, and 9) is configured for the same function. When this happens the two inputs (or more) configured wrong will be disabled as an inputs. This alarm will automatically be cleared when configuration is corrected. An example of this would be: Input 3 = Compressor Safety, input 5 = Fan Status, input 8 = Fan Status, and input 9 = Humidistat; the alarm would be active, unit would run, compressor safety and humidistat would function normally, and Fan Status (inputs 5 & 8) will be interpreted as “No Function.”

Analog Input Configuration

This occurs if more than one analog input (inputs 1 & 2) is configured for the same sensor. When this happens the two inputs will be disabled as inputs. This alarm will automatically be cleared when configuration is corrected. An example of this would be: Input 1 = IAQ Sensor, input 2 = IAQ Sensor; the alarm would be active, unit would run, but the IAQ Sensor (inputs 1 & 2) will be interpreted as “No Function.”

High Space Relative Humidity

This alarm indicates the space humidity exceeds the alarm configuration High Space Humidity Alarm Limit for 10 minutes. This alarm is inhibited until the RTU runs for 15 minutes to allow for system stabilization after startup.

Low Space Relative Humidity

This alarm indicates the space humidity falls below the alarm configuration Low Space Humidity Alarm Limit for 5 minutes. This alarm is inhibited until the RTU runs for 5 minutes to allow for system stabilization after startup.

High CO

This alarm indicates the space CO2level exceeds the alarm configuration Occupied High CO 1-minute. This alarm will be inhibited until the RTU has been running for 2-minutes to allow for system stabilization after startup.

Alarm Limit for

Supply Fan Runtime

This alarm indicates the accumulated runtime exceeds the unit configuration Supply Fan Service Alarm Timer value (when not set to 0). This alarm is most commonly used to indicate an equipment maintenance interval is due. The supply fan runtime accumulator may be reset by setting the maintenance point Reset Supply Fan Runtime Alarm to Clear, and then back to Run – acknowledging each selection by clicking the OK button when it appears. Setting unit configuration Supply Fan Service Timer value to 0 disables the supply fan runtime alarm function.

Compressor 1 Runtime

This alarm indicates the accumulated runtime exceeds the unit configuration Compressor 1 Service Alarm Timer value (when not set to 0). This alarm is most commonly used to indicate an equipment maintenance interval is due. The Compressor 1 Runtime accumulator may be reset by setting the maintenance point Reset Comp 1 Runtime Alarm to Clear, and then back to Run – acknowledging each selection by clicking the OK button when it appears. Setting unit configuration Compressor 1 Service Timer value to 0 disables the Compressor 1 Runtime alarm function.

Compressor 2 Runtime

This alarm indicates the accumulated runtime exceeds the unit configuration Compressor 2 Service Alarm Timer value (when not set to 0). This alarm is most commonly used to indicate an equipment maintenance interval is due. The Compressor 2 runtime accumulator may be reset by setting the maintenance point Reset Comp 2 Runtime Alarm to Clear, and then back to Run – acknowledging each selection by clicking the OK button when it appears. Setting unit configuration Compressor 2 Service Timer value to 0 disables the Compressor 2 runtime alarm function. Note that this function is unavailable if the service configuration Compressor Stages value is not set to Two Stages.

Filter

This alarm indicates the accumulated runtime exceeds the unit configuration Filter Service Alarm Timer value (when not set to 0). This alarm is most commonly used to indicate a filter replacement is due. Reset the filter service runtime accumulator by setting the maintenance point Reset Filter Runtime Alarm to On, back to Off, and clicking the OK button after each setting. Setting unit configuration Filter Service Alarm Timer value to 0 disables the filter service alarm function.

Third Party Networking

Third party communication and networking troubleshooting should be done by or with assistance from the front end 3rd party technician. A Module Status Report (Modstat) can be run from the BACview

or Virtual BACview (see Table 5 to

perform). This lists information about the board status and networking state. For basic troubleshooting, see Table 6.

For further information about third party networking contact Bryant applications engineering.

Table 5 – Manufacture Date

When troubleshooting, you may need to know a control module’s manufacture date.

Obtain the manufacture date from a... Notes

Module status report (modstat) To obtain a modstat with BACview6:

Sticker on the control board “Serial No: ORTYMxxxxN” (Bar Coded & Typed Number)

1. Press Function (FN) key and hold.

2. Then press period (.)

3. Release both buttons. ThereportshowsthedateunderMain board hardware.

The serial numbers are unique and contain embedded information:

“ORT” - These first three digits are unique to RTU Open and are used as an identifier.

“YM” - These two digits identify the last digit of the year and month (in hex, A=10/Oct)

of manufacture. “74” would represent a date of manufacture of “April 2007”.

“xxxx” - These four digits represent the sequential number of units produced for a given

product for the mentioned manufacturing time period.

“N” - This final digit represents the decade and toggles between “N” and “M” every

ten years.

Table 6 – Basic Protocol Troubleshooting

Problem Possible cause Corrective action

No communication with 3rd party vendor

Incorrect settings on SW1, SW2 and SW3 Verify and correct switch settings. Cycle

RS485 Port has no voltage output

(check with RTU Open disconnected from RS485 communication bus):

• Bacnet @ 9600/19.2K - .01 to .045vdc

• Bacnet @ 38.4K - .06 to .09vdc

• Bacnet @ 76.8K - .1vdc

• Modbus @ 9600 - 76.8K - .124vdc

• N2 @ 9600 - .124vdc

Verify devices are daisy chained and repeaters and bias terminators are correctly installed.

powertoRTUOpenafterchangingswitch settings.

Verify RTU Open has correct power supply.

Possible bad driver on board.

Check RS485 bus for external voltage before reconnecting to the bus.

Check 3rd party vendor RS485 communication wiring guidelines and troubleshooting procedures.

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APPENDIX A - USER INTERFACE MENUS

Field Assistant Navigation

Properties

Equipment

Status

Configuration

Unit Configuration

Setpoints

Alarm Configuration

Service Configuration

Maintenance

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Alarms

BACview Navigation

NOTE: The Tables in Appendix A describe parameters of each of the menu levels shown below.

STANDBY

HOME

SYSTEM

SETTINGS

BACnet

Modstat screen only reached by (FN + .)

Keypad UserPw Network ClockSet

DST

TimeMstr

Clockset

SETPOINT Sched

Weekly schedule

Exceptions ALARMS UNIT

SETPOINT

CALIBRATE

INPUT

SETPOINT Sched

SERVICE

TEST

C12770

ALARMMAINTSTATUS CONFIG

Alarm

C12771

APPENDIX A - USER INTERFACE MENUS (CON’T)

System Settings Menu

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Menu

STANDBY RTU Open

System Mode run_status 1=Off

Space Temperature spa ce_te mp xxx ° F

Press any key to a ctivate

HOME Select function below

HOME> SYSTEM SETTINGS>

BACnet BACnet Device Instance: xxxxxxx 1610100

Base BACnet Device ID: xxxxxxx 1610100

Autogenerate Device ID? Y/N Y

Keypad Keypad Configuration

Inactivity Timeout: 1- 255 minutes 10

BACnet Write Priority: 0- 16 0

UserPw View/Set User

Password: **** 0000

NETWORK NETWORK

Max Masters this_device/64 1 - 127 127

Max Info Frames this_device/63 1 - 999 10

APDU Time out (ms) this_device/11 1 - 10000 3000

APDU Retries this_device/73 1- 10 3

MS/TP Baud Rate this_device/4161(1) 9600 - 76800 76800

ClockSet Set Current Time/Date (24 hr clock)

Time (hh:mm:ss):

Date (dd - mmm - yy):

DST DST

Start Time:

Amount:

Entry #

Beg (mm- dd- yy)

End (mm- dd- yy)

TimeMstr BACnet Time Master

Time Sync Mode No B roadcast

Time Sync Interval 1- 9999 minutes 5

SYSTEM SETTINGS

2=Fan Only 3=Economizer 4=Cooling 5=Heating 6=Dehumidification 7=Test 8=Shutdown 9=Unocc Free Cooling (NTFC) 10=Fire Shutdown 11=IAQ Override 12=Pre- OCC Purge

Local Broadcast Global Broadcast

BACview Only

No Broadcast

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APPENDIX A - USER INTERFACE MENUS (CON’T)

Status Menu

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Menu

HOME>STATUS Equipment Status mode_status 1=Disabled

System Mode run_status 1=Off

Supply Fan Status sfa n_status Off/Running

Fan Speed fan_run 1=Off

Supply Fan VFD vf d_output 0 - 100%

Space Temperature - Prime Variab le space_ temp xxx ° F

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Supply Air Temperature sa _temp xxx ° F

Outdoor Air Temperature oa_temp xxx ° F

Space Relative Humidity sp ace_rh 0 - 100 %

Indoor Air CO2 iaq 0 - 5000 ppm

Outdoor Air CO2 oaq 0- 5000 ppm

Economizer Output econ_output 0 - 100 %open

Shutdown shutdown Inactive/Active

STATUS

2=Test 3=Run

2=Fan Only 3=Economizer 4=Cooling 5=Heating 6=Dehumidification 7=Test 8=Shutdown 9=Unocc Free Cooling (NTFC) 10=Fire Shutdown 11=IAQ Override 12=Pre- occ Purge

2=Low 3=Med 4=High 5=On

Properties >Equipment> Status

APPENDIX A - USER INTERFACE MENUS (CON’T)

Configuration Menus

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Menu

UNIT CONFIGURATION

HOME>CONFIG> UNIT

UNIT CONFIGUR ATION

Fan Mode fan_mode 1=Auto

Power Fail Re star t Delay start_d elay 0- 30 sec 5

Fan Off Del ay fan_delay_off 0- 180 sec 90

Minimum Cooling SAT sat_cl _min 45- 75 ° F 50

Maximum Heating SAT sat_ht_ max 85 - 150° F 120

Vent Dmpr Pos / DCV Min Pos econ_min 0- 100 %Open 20

Economizer Purge Min Pos econ_purge_min 0 - 100 %Open 40

Low Fan Econ Min Pos econ_min_2 0- 100 %Open 33

DCV Max Vent Damper Pos iaq_ dpr_max 0- 75 %Open 50

Supply Fan Service Alarm Timer sfan_service_hrs 0- 9999 hr 600

Comp 1 Service Alarm Timer comp1_service_hrs 0- 9999 hr 0

Comp 2 Service Alarm Timer comp2_service_hrs 0- 9999 hr 0

Filter Service Alarm Timer filter_service_hrs 0- 9999 hr 600

Pushbutton Override pb_enable Disable/Enable Enable

Setpoint Adjustment stpt_adj_enable Disable/Enable Enable

Setpoint Adjustment Range stpt_adj_range +/ - 0- 5 ° F 5

Cooling Lockout Temperature oat_cl_lockout 0 - 80° F 45

Economiz er High OAT Lockout Temp oat_ec_lockout 55 - 80° F 75

HP Rev Cycle Lockout Temp hp_rev_cycle_lockout - 20 - 30° F -3

Heating Lockout Temperature oat_ht_lockout 35 - 150° F 65

Pre Occupancy Purge preocc_purge Disable/Enable Disable

Purge Time purge_time 60 min 0- 240 min

Unocc Free Cool ntfc_ena Disable/Enable Disable

Min Setpoint Separation min_stpt_sep 2- 10 ° F 5

Occupancy Source occ_source 1= Always occupied

2=Continuous 3=Always On

2=BACnet Schedule 3=BAS On/Off 4=Remote Occ Input

Continuous

Always Occupied

Properties >Equipment> Configuration> Unit Configuration

TS- 5580- 01

APPENDIX A - USER INTERFACE MENUS (CON’T)

Configuration Menus (con’t)

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Menu

HOME>CONFIG> UNIT>INPUT

HOME>CONFIG> UNIT>CALIBRATE

INPUT CONFIGUR ATION

Input 1 Function ai1_function 1=No Sensor

Input 2 Function ai2_function 1=No Sensor

Input 3 Function di3_function 1=No Function

Input 3 Switch Configuration di3_type N/O

Input 5 Function di5_function 1=No Function

Input 5 Switch Configuration di5_type N/O

Input 8 Function di8_function 1=No Function

Input 8 Switch Configuration di8_type N/O

Input 9 Function di9_function 1=No Function

Input 9 Switch Configuration di9_type N/O

Space sensor type spt_type 1=T55

T5x Override Durati on ovr_dur 0- 24 hours 1

SENSOR CALIBRATION

Space Temperature lcl_space_temp

Space Temp Calibration spt_offset -9.9-10°F 0

Space RH lcl_space_rh 0- 100%

Space AQ lcl_space_aq 0 - 5000ppm

Supply Air Temperature lcl_sa_temp - 56 - 245° F

Supply Air Temp Calibration sat_offset -9.9-10°F 0

Outdoor Air Temperature lc_oa_temp - 56- 245° F

Outdoor Air Temp Calibration oat_offset -9.9-10°F 0

2=IAO Sensor 3=OAQ Sensor 4=Space RH Sensor

2=Comp ressor Safety 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=Fire Shutdown 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=Enthalpy Switch 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=Humidistat 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=T56 (use for T59) 3=SPT Sensor 4=None

No Sensor

1(NoFIOP) 2(FIOP)

Compresso r Safety

N/O

Fire Shutdown

N/C

1(NoFIOP) 2(FIOP)

N/O

Humidistat

N/O

T55

Properties >Equipment> Configuration> Unit Configuration

APPENDIX A - USER INTERFACE MENUS (CON’T)

Configuration Menus (con’t)

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Menu

SETPOINT

HOME>CONFIG> SETPOINT

HOME>CONFIG> Sched

HOME>CONFIG> ALARMS

Occupied Heating Setpoint occupied_heat_setpoint 40 - 90 ° F 70 Properties>Equipment>

Occupied Cooling Setpoint occupied_cool_setpoint 55- 99 ° F 76

Unoccupied Heating Setpoint unoccupied _heat _s et-

Unoccupied Cooling Setpoint unoccupied_co ol_set -

Effective Heat Setpoint effective_heat_setpoint 0 - 120 ° F

Effective Cool Setpoint effective_cool_setpoint 0 - 120 ° F

Optimal Start (hrs) optm_start 0- 4 hr 4

Optimal Start Type start_type 1=None

Heat Start K factor (min/deg) h_kf actor 0- 99 15

Cool Start K factor (min/deg) c_kfactor 0- 99 15

DCV Max Ctrl Setpoint iaq_stpt_max 0 - 9999 ppm 650

Power Exhaus t Setpo int pexh_stpt 20- 90 %Open 50

Occ Relative Humidity Setpoint occ_dehum_stpt 0- unocc setpoint %rh 60

Unocc Relative Humidity Setpoint unocc_dehum_stpt 30- 100 %rh 95

Weekly schedule MON- SUN none

Exceptions none

Occupied Alarm Hysteresis occ_spt_alrm_hyst 0- 20° F 5

Alarm Delay (min/deg) spt_alrm_delay 0- 60 minutes 10

Unoccupied Low SPT Alarm Limit uno_spt_alrm_lo_lmt 35 - 90 ° F 45

Unoccupied High SPT Alarm Limit uno_spt_alrm_hi_lmt 45 - 100 ° F 95

point

ALARM CONFIGURATION

SPACE TEMPERATURE ALARM

SUPPLY AIR TEMPERATURE ALARM

40- 90 ° F 55

45- 99 ° F 90

2=Learning Adaptive 3=Temp Compensated

Schedule (BACview o nly)

Temperature Compensated

Configuration>Setpoints

Properties >Equipment> Configuration> Alarm Configuration

TS- 5580- 01

Low SAT Alarm Limit sat_lo_alrm_lim 15 - 90 ° F 38

High SAT Alarm Limit sat_hi_alrm_lim 90- 175 ° F 160

SPACE HUMIDITY ALARM

Occupied High RH Alarm Limit (%RH)

Alarm Delay (min/%RH) sprh_de lay 0- 30 min 5min

Unoccupied High RH Alarm Limit (%RH)

Low RH Alarm Limit (%RH) sprh_lo _alrm_ lim 0- 100%rh 30%rh

Occ High CO2 Alarm Limit (ppm) iaq_occ_hi_ lmt 0- 9999 ppm 1200

sprh_hi_alrm_lim 0- 100%rh 70%rh

unocc_sprh_lmt 0 - 100%rh 100%rh

IAQ / VENTILATION ALARM

TS- 5580- 01

APPENDIX A - USER INTERFACE MENUS (CON’T)

Alarm Menus

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Menu

ALARMS

HOME>ALARM

HOME>ALARM> Alarm

CURRENT ALARMS

Safety Chain safety_alarm No rmal/Al arm

Fire/Smo ke Shutdown fire_al arm Normal/ Alarm

Supply Fan Failure sfan_fail_alarm No rmal/Al arm

Supply Fan in Hand sfan_hand_alarm Normal/Alarm

Compresso r Safety comp_alarm Normal/Alarm

SPT Sensor spt_ sensor_ fail Normal/Ala rm

Space Temp Sensor spt_fail Normal/Alarm

Supply Air Temperature sat_fail Normal/ Alarm

Supply Air Temp Sensor loc_sa t_senso r_fa il Normal/Alarm

Local OAT Sensor loc_oat_sensor_fail Normal/Alarm

Indoor Air Quality iaq_alarm No rmal/Alarm

Outdoor Air Temp Sensor oat_alarm Normal/ Alarm

Space Relative Humidity sprh_hi_alarm Normal/ Alarm

Space Relative Humidity Sensor sprh_sensor_ fail No rmal/Al arm

Indoor Air Quality Sensor iaq_sensor_alarm Normal/ Alarm

Outdoor Air Quality Sensor oaq_fail Normal/Alarm

Space Temperature spt_alrm_status Normal/Ala rm

Alarmi ng T emperature spt_al rm_temp xxx ° F

Alarm Limit Exceeded spt_al rm_lmt xxx ° F

Setpoint Slider slidepo t_alarm Normal/ Alarm

Switch Configuration di_cfg_alarm Normal/Alarm

Analog Input Configuration ai_cfg_alarm Normal/A larm

Supply Fan Runtime sfan_rntm_alarm No rmal/Al arm

Compresso r 1 Runtime comp1_ rntm_ala rm No rmal/Alarm

Compresso r 2 Runtime comp2_ rntm_ala rm No rmal/Alarm

Filter filter_alarm Clean/Dirty

Module Eve nt History (100 most recent) (BACvi ew only)

Active Alarms Buffer

Active Faults Buffer

Returned - To- Normal (RTN) Buffer

Manually Cleared (CLR) Buffer

Properties >Equipment> Alarms

APPENDIX A - USER INTERFACE MENUS (CON’T)

Service Menu

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Me nu

SERVICE

HOME>CONFIG> SERVICE

Unit Type unit_typ e 1=Heat/Cool

Compresso r Stages comp_ stages One stage/ Two Stage One Stage (sizes 04- 07, and

Face Spl it Coi l face_split Yes/ N o Yes

Economizer Exists econ_exist No/ Yes No (No FIOP)

Fan Control fan_type 1=Single Speed

VFD Input vfd_in_type 0- 10Vdc/2- 10Vdc 2 - 10Vdc

Max VFD Output ma x_vfd_spd 33 - 100% 1

Min VFD Output min_vfd_spd 33 - 100% 0.4

Dehum Min VFD Output de hum_min_vfd 50 - 100% 0.6

Reversing Valve Type rev_vlv_ type O output type/B output type Ooutputtype

Heat Type hea t_type Electric/Gas Gas (580J/581J Series Units)

Number of Heat Stages heat_sta ges 1/2/0(noheat) 0 (558J/551J series cooling only

Continuous Occupied Exhaust occ_exh No/Yes No

RH Control rh_enable Disable/Enable Disable

DCV Control dcv_enable Disable/Enable Disable

Indoor CO2 Sensor Value @ Min mA iaq_ref_ l o_ppm 0 - 9999ppm 0

Indoor CO2 Sensor Value @ Max m A iaq_ref_hi_ppm 0- 9999ppm 2000

Outdoor CO2 Sensor Value @ Min m A oa q_ ref_lo_ppm 0- 9999ppm 0

Outdoor CO2 Sensor Value @ Max mA oaq_ref_hi_ppm 0- 9999ppm 2000

(Field Assistant Only) System Spa ce Temperature sy stem_spt

System Space RH system_ rh

System Space AQ system_i aq

System Outdoor AQ system_oa q

System Cool Demand Level cool_demand_level 0- 3 0

System Heat Demand Level heat_demand_level 0- 3 0

System Outdoor Air Temperature system_ oat

HOME>CONFIG> SERVICE>TEST

Service Test test_enable Disable/Enable Disable

Fan Test fan_test Disable/Enable Disable

High Speed Fan Test hi_spd_test Disable/Enable Disable

Compresso r 1 Te st comp1_test Disable/Enable Disable

Compresso r 2 Te st comp2_test Disable/Enable Disable

Heat 1 Test heat1_test Disable/Enable Disable

Heat 2 Test heat2_test Disable/Enable Disable

Reversing Valve Test rev_ vlv_test Disable/Enable Disable

Dehumidification Test dehum_test Disable/Enable Disable

Power Exhaust Test pexh_test Disable/Enable Disable

Economizer Test econ_test 0- 100 %Open 0

VFD Speed Test vfd_spd_test 0 - 100% 0

SERVICE CONFIGURATION

2=HP O/B Ctrl 3=HP Y1/W1 Ctrl

2=Two Speed 3=Variable Speed

SERVICE TEST

Heat/Cool (580/558J and 581/55J model s) HP Y1/W1 Ctrl (548J and 549J models)

A08- A12) TwoStages(sizes08- 30)

Yes ( F IO P )

Single Speed (04- 07. and A08 - 12) Two Speed (units with VFD option)

Electric (558J/551J/548J/549J

Series Units)

units)

1 (All 548J and 549J, L ow Nox units,

single ph as e gas units, 580/558J04- 09 low and 580/558J05- 07 med heat 3 phase gas units)

2 (580/558J04 and 08- 09 med,

580/558J05- 09 high heat 3 phas e gas units , 581/551J04- 09 3 phase gas units and All 1 2- 30 gas units)

Enable (units with Perfect Humidity option)

Properties >Equipment> Configuration> Service Co n fi g ura ti o n

TS- 5580- 01

APPENDIX A - USER INTERFACE MENUS (CON’T)

Maintenance Menu

BACview Menu POINT NAME BACnet Object RANGE DEFAULT Field Assistant Menu

MAINTENANCE

HOME>MAINT

UNIT MAINTENANCE

Occupancy Status o cc_status Occupied/Unoccupied

T emp Compensated Sta rt

Learning Adaptive Start

Pre Occupancy Purge purge Inactive/ Active

Space Temp Sensor spt_status 1=Sensor Failure

Setpoint Adjustment stpt_adj x°F

Relative Humidity Source rh_source 1=N/A

IAQ Source iaq_source 1=N/A

OAQ Source oaq_source 1=N/A

Outdoor Air Temperature Source oat_status 1=N/A

Safety Chain Feedback safety_status Off/Run Enabled

Fire Shutdown Status firedown_status Run Enabled/Shutdown

Compressor Safety Status comp_status Normal/Trouble

CalculatedMinEconPos cal_min_econ_pos 0 - 100%

Calculated Min PE Pos cal_pe_stpt 0 - 100%

Active Compressor Stages comp_run 0- 2

Active Heat Stages heat_run 0- 2

Enthalpy Status enthalpy_status High/Low

Humidistat Input Status humstat_status Hi gh/Low

Filter Status filter_status Clean/Dirty

Door Contact Status door_contact_status Off/On

Reset Supply Fan Runtime Alarm sfan_rntm_ clr Run/Clear Run

Reset Comp 1 Runtime Alarm comp1_rntm_clr Run/Clear Run

Reset Comp 2 Runtime Alarm comp2_rntm_clr Run/Clear Run

Reset Filter Runtime Alarm filter_rntm_clr Off/On Off

BAS On / Off keypad_ovrde 1=Inactive

Schedules sched ule U noccupied/ Occupied

Pushbutton Override pb_status Off/Active

Occupancy Contact occ_contact_status Off/On

Override Ti me Remaining ovrde_time 0- 240 min

Supply Fan Runtime sfan_rntm xxxxx hr

Compresso r 1 Runtime comp1_rntm xxxxx hr

Compresso r 2 Runtime comp2_rntm xxxxx hr

Filter Runtime filter_rntm xxxxx hr

-Or-

tcs_stat us

-Or-

aos_status

OCCUPANCY MAINTENANCE

RUNTIME MAINTENANCE

Inactive/Active

2=SPT Sensor 3=T55/T56 4=Network 6=Locked Value

2=Local 3=Network 5=Locked Value

2=Occupied 3=Unoccupie d

Inactive

Properties >Equipment> Maintenance

APPENDIX B - THIRD PARTY POINTS LIST

(in alphabetical order)

Point Name

Active Compressor Stages R comp_run AV:2020 float value 40031 ADF 10 SNVT_count_i nc (9) nvoCompStages

Active Heat Stages R heat_run AV:2003 float value 40033 ADF 11 SNVT_count_i nc (9) nvoHeatStages

Air Source Outdoor Air Temp R link_ahu_oat AV:2609

Air Source Supply Air Temp R link_sat AV:2608

BAS On / Off R/W keypad_ ovrde MSV:1001 unsigned int 40133 ADI 1 SNVT_count_inc (9) nviBASOnOff

Compressor 1 Relay State R comp_1 BV:2005

Compresso r 1 Runtime R co mp1_rntm AV:2017

Compresso r 1 Runtime R co mp1_rntm_alarm BV:7014

Compresso r 1 Service Alarm Timer

Compresso r 1 Te st R/W comp1_test BV:81005

Compressor 2 Relay State R comp_2 BV:2004

Compresso r 2 Runtime R co mp2_rntm AV:2018

Compresso r 2 Runtime R co mp2_rntm_alarm BV:7015

Compresso r 2 Service Alarm Timer

Compresso r 2 Te st R/W comp2_test BV:81004

Compressor Safety Status R comp_status BV:1008

Compressor Status R comp_alarm BV:7013 discrete in 10030 BI 30 SNVT_ switch (95) nvoCompSafety

Continuous Occupied Exhaust R/W occ_exh BV:9002

Cooling Lockout Temperature R/W oat_cl_lockout AV:9002 float value 40043 ADF 16 SNVT_temp_p (105) nviCoolLckTemp

DCV Max Ctrl Setpoint R/W iaq_stpt_max AV : 3013 float value 40045 ADF 17 SNVT_ppm (29) nviDCVMaxPPM

DCV Max Vent Damper Pos R/W iaq_dpr_max AV : 9011 float value 40047 ADF 18 SNVT_lev_percent (81) nviDCVMa xPos

Dehumidification R dehum BV:2006 discrete in 10009 BI 9 SNVT_switch (95) nvoDehumRelay

Dehumidification Test R/W dehum_test BV:81006

Door Contact Status R door_conta ct_status BV:1010

Economizer Exists R/W econ_exist BV:99001

Economizer High OAT Lockout Te m p

Economizer Output R econ_output AV:2022 float value 40051 ADF 20 SNVT_l ev_percent (81) nvo EconOutput

Economizer Purge Min Pos R/W econ_purge_min AV:9029 float value 40075 ADF 5 SNVT_lev_p ercent (81) nviEconPurge Min

Economizer Test R/W econ_test AV:81001 float value 40053 ADF 21 SNVT_temp_p (105)

Effective Cool Setpoint R eff_cl_stpt AV : 3005 float value 40055 ADF 22 SNVT_temp_p (105) nvoEffCoolSP

Effective Heat Setpoint R eff_ht_stpt AV:3006 float value 40057 ADF 23 SNVT_temp_p (105) nvoEffHeatSP

Enthalpy (BACnet) R/W oae BV : 1901 discrete out 6 BO 6 SNVT_switch (95) nviSy sEnthalpy

Enthalpy Status R enthalpy_status BV:1002

Equipment Status R mode_status MSV:2001

Facto ry T est R/W fac_test_enable BV:91000

Factory Test Anal og 1 Control R/W ao1_fac_test AV:91001

Factory Test Anal og 2 Control R/W ao2_fac_test AV:91002

Factory Test Relay 1 Control R/W relay1_fac_test BV:91001

Factory Test Relay 2 Control R/W relay2_fac_test BV:91002

Factory Test Relay 3 Control R/W relay3_fac_test BV:91003

Factory Test Relay 4 Control R/W relay4_fac_test BV:91004

Factory Test Relay 5 Control R/W relay5_fac_test BV:91005

Factory Test Relay 6 Control R/W relay6_fac_test BV:91006

Factory Test Relay 7 Control R/W relay7_fac_test BV:91007

Factory Test Relay 8 Control R/W relay8_fac_test BV:91008

Fan Mode R/W fan_mode MSV: 9032

Fan Off Del ay R/W fan_delay_off AV:9024

Filter R filter_alarm BV:7017 di screte in 10031 BI 31 SNVT_switch (95) nvoF ilter

Filter Runtime R filter_rntm AV:2015

Filter Service Alarm Timer R/W filter_service_hrs AV:2019 float value 40067 ADF 28 SNVT_time_hour (124) nviFilterAlmTime

Filter Status R filter_status BV:1004

Fire / Smoke Shutdown R fire_alarm BV:7007 discrete in 10032 BI 32 SNVT_switch (95) nvoFireShutdown

Fire Shutdown Status R firedown_status BV:1005

Heat 1Test R/W heat1_test BV:81003

Heat 2Test R/W heat2_test BV:81002

Heat Stage 1 Relay State R hea t_1 BV:2003

Heat Stage 2 Relay State R hea t_2 BV:2002

Heating Lockout Temperature R/W oat_ht_lockout AV:9003 float value 40069 ADF 29 SNVT_temp_p (105) nviHeatLckTemp

Read/ Write

BACnet Point Name Object ID

R/W comp1_service _hrs AV:83006

R/W comp2_service _hrs AV:83007

R/W oat_ec_lockout AV:9008

BACnet Modbus N2 Lonworks

Typ e

Network

Point

Typ e

Network

Point

Address

SNVT Type SNVT Name

TS- 5580- 01

APPENDIX B - THIRD PARTY POINTS LIST (CON’T)

(in alphabetical order)

Point Name

High Space Temperature R spt_hi_a larm BV:7011 discrete in 10035 BI 35 SNVT_switch (95) nvoHiSpaceTemp

High Speed Fan Test R/W hi_spd_test BV:81010

HP Rev Cycle Lockout Temp R/W hp_rev_cycle_lockout AV:9004 float value 40071 ADF 30 SNVT_temp_p (105) nviHPRevCLckTemp

Humidistat Input Status R humstat_status BV:1006

Indoor Air Quality R iaq_alarm BV:7005 discrete in 10033 BI 33 SNVT_switch (95) nvoIAQAlm

Indoor Air Quality CO2 (ppm) R iaq AV:1009 float value 40073 ADF 31 SNVT_ppm (29) nvoIAQ

Indoor Air Quality Sensor R iaq_sensor_fail BV:7039 discrete in 10037 BI 37 SNVT_switch (95) nvoIAQSensor

Input 1 Function R/W a i1_functi on MSV:81001

Input 2 Function R/W a i2_functi on MSV:81002

Input 3 Function R/W di3_function MSV:81003

Input 3 Switch Configuration R/W di3_type MSV:81013

Input 5 Function R/W di5_function MSV:81005

Input 5 Switch Configuration R/W di5_type MSV:81015

Input 8 Function R/W di8_function MSV:81008

Input 8 Switch Configuration R/W di8_type MSV:81018

Input 9 Function R/W di9_function MSV:81009

Input 9 Switch Configuration R/W di9_type MSV:81019

TS- 5580- 01

input_1 R ai_1 AI:1001

input_10 R ai_10 AI:1010

input_11 R ai_11 AI:1011

input_2 R ai_2 AI:1002

input_3 R di_3 BI:1003

input_4 R di_4 BI:1004

input_5 R di_5 BI:1005

input_6 R ai_6 AI:1006

input_7 R ai_7 AI:1007

input_8 R di_8 BI:1008

input_9 R di_9 BI:1009

Low Fan Econ Min Pos R/W econ_min_2 AV:9030 float value 40089 ADF 32 SNVT_ lev_percent (81) nviLowFanEconMi n

Low Space Temperature R spt_lo_alarm BV:7012 discrete in 10039 BI 39 SNVT_switch (95) nvoLo SpaceTemp

Maximum Heating SAT R/W sat_ht_ma x AV:83004

Minimum Cooling SAT R/W sat_cl _min AV:83003

Number Of Heat Stages R/W heat_stag es MSV:91004

Occ Relative Humidity Setpoint R/W occ_dehum_stpt AV:3011 float value 40083 ADF 36 SNVT_lev_percent (81) nviOccRHSP

Occupancy Contact R occ_co ntact_status BV:1007

Occupancy Source R/W occ_ source MSV:1002

Occupancy Status R occ_status BV:2008 discrete in 10018 BI 18 SNVT_switch (95) nvoOccStatus

Optimal Start R/W optm_start AV:9026 float value 40147 ADF 61 SNVT_time_hour (124) nviOptimalStart

Optimal Start Type R/W start_type MSV:2009 unsigned int 40154 ADI 20 SNVT_count_i nc (9) nviOptimalStType

Outdoor Air Quality CO2 (ppm) R oaq AV:1012 float value 40085 ADF 37 SNVT_ppm (29) nvoOAQ

Outdoor Air Quality Sensor R oaq_fail BV:7006 di screte in 10041 BI 41 SNVT_switch (95) nvoOAQSensor

Outdoor Air Temp Sensor R oat_fail BV:7029 discrete in 10027 BI 27

Outdoor Air Temperature R oa_temp AV:1003 float value 40087 ADF 38 SNVT_temp_p (105) nvoOAT

Override Ti me Remaining R ovrde_time AV:2016 float value 40093 ADF 41 SNVT_time_min (123) nvoOvrTi meRema in

Password Protected Output Vari a bl e

Power Exhaust Relay State R pexh BV:2010

Power Exhaus t Setpo int R/W pexh_stpt AV:3010 float value 40097 ADF 43 SNVT_ lev_percent (81) nviPwrExhSP

Power Exhaust Test R/W pexh_test BV:81008

Power Fail Re star t Delay R/W start_d elay AV:9007 float value 40127 ADF 58 SNVT_time_sec (107) nvi UnitStartDly

Reset Comp 1 Runtime Alarm R/W comp1_rntm_clr BV:7514

Reset Comp 2 Runtime Alarm R/W comp2_rntm_clr BV:7515

Reset F ilter Alarm R/W filter_rntm_clr BV:7517 discrete out 22 BO 22 SNVT_switch (95) nviResetFiltAlm

Reset Supply Fan Runtime Alarm

Safety Chain R saf ety_alarm BV:7024 discrete in 10043 BI 43 SNVT_ switch (95) nvoSafe tyChain

Safety Chain Feedback R safety_status BV:1009

Schedule R/W schedule BV:8000

Service Test R/W test_enable BV:81000

Read/ Write

BACnet Point Name Object ID

R/W ppo AV:90000

R/W sfan_rntm_clr BV:7510

BACnet Modbus N2 Lonworks

Typ e

Network

Point

Typ e

Network

Point

Address

SNVT Type SNVT Name

APPENDIX B - THIRD PARTY POINTS LIST (CON’T)

(in alphabetical order)

Point Name

Setpoint / Cooling Occupied Setpoint

Setpoint / Cooling Unoccupied Setpoint

Setpoint / Heating Occupied Setpoint

Setpoint / Heating Unoccupied Setpoint

Setpoint Adjustment R stpt_adj AV:1006 float value 40099 ADF 44 SNVT_temp_p (105) nvo SPAdjust

Setpoint Adjustment R/W stpt_adj_enable BV:1013 discrete out 26 BO 26 SNVT_ switch (95) nviSPAdjEnable

Setpoint Adjustment Range R/W stpt_adj_range AV:9015 float value 40101 ADF 45 SNVT_temp_p (105) nviSPAdjRange

Setpoint Slider R slidepot_al arm BV:7002

Shutdown R/W shutdown BV:9001

slidepot voltage reading R slidepot_volts AI:1012

Space Relative Humidity R space _rh AV: 1011 float value 40103 ADF 46 SNVT_lev_ percent (81) nvoSpaceRH

Space Relative Humidity R sprh_hi_alarm BV:7018 discrete in 10034 BI 34 SNVT_switch (95) nvoHiSP RHAlm

Space Relative Humidity Sensor R sprh_sensor_ fail BV:7022 discrete in 10045 BI 45 SNVT_ switch (95) nvoSpaceRH S en sor

Space sensor type R/W spt_type MSV:9001

Space Temp / Override Time Remaining

Space T emp / Zone Temp R zone_temp AI:1

Space Temp Sensor R spt_fail BV:7001 discrete in 10046 BI 46 SNVT_switch (95) nvoSPTempSensor

Space Temp Source R spt_sta tus MSV:2003

Space Temperature - Prime Vari a bl e

Space Temperature Offset Pot R stpt_adj_o f f set AV:91006

SPT Sensor R spt_sensor_fai l BV:7032 discrete in 10038 BI 38

Supply Air Temperature R sa _temp AV:1008 float value 40109 ADF 49 SNVT_temp_p (105) nvoSAT

Supply Air Temperature R sat_alarm BV: 7004 discrete in 10047 BI 47 SNVT_switch (95) nvoSATSensor

Supply Fan Failure R sfan_fail_alarm BV:7008

Supply Fan in Hand R sfan_hand_alarm BV:7009

SupplyFanRelayState R sfan BV:2001 di screte in 10023 BI 23 SNVT_switch (95) nvoSFRelay

Supply Fan Runtime R sfan_rntm AV:2014

Supply Fan Runtime R sfan_rntm_alarm BV:7010 discrete in 10050 BI 50

Supply Fan Service Alarm Timer R/W sfan_service_hrs AV:83005

Supply Fan Status R sfan_status BV:1003 discrete in 10024 BI 24 SNVT_switch (95) nvoFanStatus

Supply Fan VFD R vfd_ output AV:2027

System Cooling Demand Level R cool_demand_level AV:9006

System Heating Demand Level R heat_demand_level AV:9036

System is shut down R shutdown_status BV:2011

System Mode R run_ status MSV:2002 unsigned int 30001 ADI 13 SNVT_count_inc (9) nvoOperatingMode

System OAT Ma ster R mstr_oa_temp AV:80001

System Outdoor Air Temperature R/W system_ oat AV:1901 float value 40119 ADF 54 SNVT_temp_p (105) nviSysOAT

System Space AQ R/W system_iaq AV:1903 float value 40149 AD F 39 SNVT_ppm (29) nviSysSpaceAQ

System Space RH R/W syste m_rh AV: 1904 float value 40151 ADF 40 SNVT_lev_percent (81) nviSysSpace RH

System Space Temperature R/W system_spt AV:1902 float value 40123 ADF 56 SNVT_temp_p (105) nviSysSpaceTemp

T5x Override Durati on R/W ovr_dur AV:9023

Unocc Free Cool R/W ntfc_ena BV:80001

Unocc Relativ e Humidity Setpoint R/W unocc_dehum_stpt AV:3012 float value 40129 ADF 59 SNVT_lev_ percent (81) nviUnoccRHSP

Vent Dmpr Pos / DCV Min Pos R/W econ_min AV:9005 float value 40131 ADF 60 SNVT_lev_percent (81) nviDCVMinPos

VFD Speed Test R/W vfd_spd_test AV:81002

Read/

Write

BACnet Point Name Object ID

R/W occ_cl_stpt AV:3001 float value 40009 ADF 4 SNVT_temp_p (105) nviOccCo olSP

R/W unocc_cl_stpt AV : 3003 float value 40015 ADF 7 SNVT_temp_p (105) nvi UnoccCoolSP

R/W occ_ht_stpt AV: 3002 float value 40019 ADF 9 SNVT_temp_p (105) nviOccHea tSP

R/W unocc_ht_stpt AV:3004 float value 40017 ADF 8 SNVT_temp_p (105) nviUnoccHeatSP

R/W overr id e_t im e_remaining AV:1

R space_temp AV:2007 float value 40107 ADF 48 SNVT_temp_p (105) nvoSpace T emp

BACnet Modbus N2 Lonworks

Typ e

Network

Point

Typ e

Network

Point

Address

SNVT Type SNVT Name

TS- 5580- 01

2012Bryant Heating & Cooling Systems. D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 11/12

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Catalog No: TS- 5580J- 01

Replaces: New

RTUOPENSTART-UPSHEET

RTU Model Number: Date:

RTU Serial Number:

Performed by:

RTU Open Software Version: Company:

Protocol and Baud Rate: Network Address:

CONFIGURATION POINTS

BACview Menu POINT NAME BACnet Object RANGE DEFAULT ENTRY

SETPOINT

HOME>CONFIG> SETPOINT

HOME>CONFIG> Sched

HOME>CONFIG> ALARMS

Occupied Heating Setpoint occupied_heat_setpoint 40 - 90 ° F 70

Occupied Cooling Setpoint occupied_cool_setpoint 55- 99 ° F 76

Unoccupied Heating Setpoint unoccupied _heat _s et-

Unoccupied Cooling Setpoint unoccupied_co ol_set -

Effective Heat Setpoint effective_heat_setpoint 0 - 120 ° F

Effective Cool Setpoint effective_cool_setpoint 0 - 120 ° F

Optimal Start (hrs) optm_start 0- 4 hr 4

Optimal Start Type start_type 1=None

Heat Start K factor (min/deg) h_kf actor 0- 99 15

Cool Start K factor (min/deg) c_kfactor 0- 99 15

DCV Max Ctrl Setpoint iaq_stpt_max 0 - 9999 ppm 650

Power Exhaus t Setpo int pexh_stpt 20 - 90 %Open 50

Occ Relative Humidity Setpoint occ_dehum_stpt 0- unocc setpoint %rh 60

Unocc Relative Humidity Setpoint unocc_dehum_stpt 30- 100 %rh 95

Weekly schedule MON- SUN none

Exceptions none

Occupied Alarm Hysteresis occ_spt_alrm_hyst 0- 20° F 5

Alarm Delay (min/deg) spt_alrm_delay 0- 60 minutes 10

Unoccupied Low SPT Alarm Limit uno_spt_alrm_lo_lmt 35 - 90 ° F 45

Unoccupied High SPT Alarm Limit uno_spt_alrm_hi_lmt 45 - 100 ° F 95

point

ALARM CONFIGURATION

SPACE TEMPERATURE ALARM

SUPPLY AIR TEMPERATURE ALARM

40- 90 ° F 55

45- 99 ° F 90

2=Learning Adaptive 3=Temp Compensated

Schedule

Temperature Compensated

TS- 5580- 01

Low SAT Alarm Limit sat_lo_alrm_lim 15 - 90 ° F 38

High SAT Alarm Limit sat_hi_alrm_lim 90- 175 ° F 160

SPACE HUMIDITY ALARM

Occupied High RH Alarm Limit (%RH)

Alarm Delay (min/%RH) sprh_de lay 0- 30 min 5min

Unoccupied High RH Alarm Limit (%RH)

Low RH Alarm Limit (%RH) sprh_lo _alrm_ lim 0- 100%rh 30%rh

Occ High CO2 Alarm Limit (ppm) iaq_occ_hi_ lmt 0- 9999 ppm 1200

sprh_hi_alrm_lim 0- 100%rh 70%rh

unocc_sprh_lmt 0 - 100%rh 100%rh

IAQ / VENTILATION ALARM

TS- 5580- 01

CONFIGURATION POINTS (CON’T)

BACview Menu POINT NAME BACnet Object RANGE DEFAULT ENTRY

UNIT CONFIGURATION

HOME>CONFIG> UNIT

Fan Mode fan_mode 1=Auto

Power Fail Re star t Delay start_d elay 0- 30 sec 5

Fan Off Del ay fan_delay_off 0- 180 sec 90

Minimum Cooling SAT sat_cl _min 45- 75 ° F 50

Maximum Heating SAT sat_ht_ max 85 - 150° F 120

Vent Dmpr Pos / DCV Min Pos econ_min 0- 100 %Open 20

Economizer Purge Min Pos econ_purge_min 0 - 100 %Open 40

Low Fan Econ Min Pos econ_min_2 0- 100 %Open 33

DCV Max Vent Damper Pos iaq_ dpr_max 0- 75 %Open 50

Supply Fan Service Alarm Timer sfan_service_hrs 0 - 9999 hr 600

Comp 1 Service Alarm Timer comp1_servi ce_hrs 0- 9999 hr 0

Comp 2 Service Alarm Timer comp2_servi ce_hrs 0- 9999 hr 0

Filter Service Alarm Timer filter_service_hrs 0- 9999 hr 600

Pushbutton Override pb_enable Disable/Enable Enable

Setpoint Adjustment stpt_adj_enable Disable/Enable Enable

Setpoint Adjustment Range stpt_adj_range +/ - 0- 5 ° F 5

Cooling Lockout Temperature oat_cl_lockout 0 - 80° F 45

Economiz er High OAT Lockout Temp oat_ec_lockout 55 - 80° F 75

HP Rev Cycle Lockout Temp hp_rev_cycle_lockout - 20 - 30° F -3

Heating Lockout Temperature oat_ht_lockout 35 - 150° F 65

Pre Occupancy Purge preocc_purge Disable/Enable Disable

Purge Time purge_time 60 min 0- 240 min

Unocc Free Cool ntfc_ena Disable/Enable Disable

Min Setpoint Separation min_stpt_sep 2- 10 ° F 5

Occupancy Source occ_source 1= Always occupied

UNIT CONFIGUR ATION

2=Continuous 3=Always On

2=BACnet Schedule 3=BAS On/Off 4=Remote Occ Input

Continuous

Always Occupied

CONFIGURATION POINTS (CON’T)

BACview Menu POINT NAME BACnet Object RANGE DEFAULT ENTRY

HOME>CONFIG> UNIT>INPUT

HOME>CONFIG> UNIT>CALIBRATE

Input 1 Function ai1_function 1=No Sensor

Input 2 Function ai2_function 1=No Sensor

Input 3 Function di3_function 1=No Function

Input 3 Switch Configuration di3_type N/O

Input 5 Function di5_function 1=No Function

Input 5 Switch Configuration di5_type N/O

Input 8 Function di8_function 1=No Function

Input 8 Switch Configuration di8_type N/O

Input 9 Function di9_function 1=No Function

Input 9 Switch Configuration di9_type N/O

Space sensor type spt_type 1=T55

T5x Override Durati on ovr_dur 0- 24 hours 1

Space Temperature lcl_space_temp

Space Temp Calibration spt_offset -9.9-10°F 0

Space RH lcl_space_rh 0- 100%

Space AQ lcl_space_aq 0 - 5000ppm

Supply Air Temperature lcl_sa_temp - 56 - 245° F

Supply Air Temp Calibration sat_offset -9.9-10°F 0

Outdoor Air Temperature lc_oa_temp - 56- 245° F

Outdoor Air Temp Calibration oat_offset -9.9-10°F 0

INPUT CONFIGUR ATION

2=IAO Sensor 3=OAQ Sensor 4=Space RH Sensor

2=Comp ressor Safety 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=Fire Shutdown 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=Enthalpy Switch 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=Humidistat 3=Fan Status 4=Filter Status 5=Remote Occupancy 6=Door Contact

N/C

2=T56 (use for T59) 3=SPT Sensor 4=None

SENSOR CALIBRATION

No Sensor

1(NoFIOP) 2(FIOP)

Compresso r Safety

N/O

Fire Shutdown

N/C

1(NoFIOP) 2(FIOP)

N/O

Humidistat

N/O

T55

TS- 5580- 01

CONFIGURATION POINTS (CON’T)

BACview Menu POINT NAME BACnet Object RANGE DEFAULT ENTRY

HOME>CONFIG> SERVICE

Unit Type unit_type 1=Heat/Cool

Compresso r Stages comp_stages One stage/ T wo Sta ge One Stage (sizes 04 - 07, and A08- A12)

Face Spl it Coi l face_split Yes / No Ye s

Economizer Exists econ_exist No/Yes No (No FIOP)

Fan Control fan_type 1=Single Speed

VFD Input vfd_in_type 0 - 10Vdc/2 - 10Vdc 2 - 10Vdc

Max VFD Output ma x_vfd _spd 33 - 100% 1

Min VFD Output min_vfd_sp d 33- 100% 0.4

Dehum Min VFD Output dehum_min_vfd 50- 100% 0.6

Reversing Valve Type rev_vlv_ type O output type/B output type Ooutputtype

Heat Type heat_type Electric/Gas Gas (580J/581J Series Units)

Number of Heat Stages heat_stages 1/2/0(noheat) 0 (558J/551J series cooling only units)

TS- 5580- 01

Continuous Occupied Exhaust o cc_exh No/Yes No

RH Control rh_enable Disable/Enable Disable

DCV Control dcv_enable Disable/Enable Disable

Indoor CO2 Sensor Value @ Min mA iaq_ref_lo_ ppm 0- 9999ppm 0

Indoor CO2 Sensor Value @ Max m A iaq_ref_hi_ppm 0- 9999ppm 2000

Outdoor CO2 Sensor Value @ Min m A oaq_ref_lo_ppm 0 - 9999ppm 0

Outdoor CO2 Sensor Value @ Max mA oaq_ref_hi_ppm 0- 9999ppm 2000

(Field Assistant Only) System Space Temperature system_spt

System Space RH system_rh

System Space AQ sy stem_iaq

System Outdoor AQ system_oa q

System Cool Demand Level cool_demand_level 0- 3 0

System Heat Demand Level heat_demand_level 0- 3 0

System Outdoor Air Temperature syste m_oat

HOME>CONFIG> SERVICE>TEST

Service Test test_enable Disable/Enable Disable

Fan Test fan_test Disable/Enable Disable

High Speed Fan Test hi_spd_test Disable/Enable Disable

Compresso r 1 Te st comp1_test Disable/Enable Disable

Compresso r 2 Te st comp2_test Disable/Enable Disable

Heat 1 Test heat1_ test Disable/Enable Disable

Heat 2 Test heat2_ test Disable/Enable Disable

Reversing Valve Test rev_vlv_test Disable/Enable Disable

Dehumidification Test dehum_test Disable/Enable Disable

Power Exhaust Test pexh_test Disable/Enable Disable

Economizer Test econ_test 0 - 100 %Open 0

VFD Speed Test vfd_spd_test 0- 100% 0

SERVICE

SERVICE CONFIGURATION

2=HP O/B Ctrl 3=HP Y1/W1 Ctrl

2=Two Speed 3=Variable Speed

SERVICE TEST

Heat/Cool (580/558J and 581/55J models) HP Y1/W1 Ctrl (548J and 549J models)

TwoStages(sizes08- 30)

Yes ( F IO P )

Single Speed (04- 07. and A08 - 12) Two Sp eed (units with VFD option)

Electric (558J/551J/548J/549J Series Units)

1 (All 548J and 549J, L ow Nox units,

single phas e gas units, 580/558J04- 09 low and 580/558J05- 07 med heat 3 phase gas units)

2 (580/558J04 and 08- 09 med,

580/558J05- 09 high heat 3 phas e gas units, 581/551J04- 09 3 phase gas units and All 12- 30 gas units)

Enable (u n it s with Perfect Humidity option)

2012Bryant Heating & Cooling Systems. D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 11/12

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Catalog No: TS- 5580J- 01

Replaces: New

Bryant 580J 04-30, 558J 04-30, 548J 04-24581J 04-28, 549J 04-12, 551J 04-28 Controls, Start-up, Operation And Troubleshooting

Specifications and Main Features

Frequently Asked Questions

User Manual