Carrier 48/50HC04---14 Controls, Start-Up, Operation And Troubleshooting Instructions Download

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48/50TC04---28, 50TCQ04---12

48/50HC04---14, 50HCQ04---12

Factory Installed Option

RTU---OPEN

Controls, Start---Up, Operation

and Troubleshooting Instructions

TABLE OF CONTENTS

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . . . . . . .

GENERAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SENSOR/ACCESSORY INSTALLATION

. . . . . . . . . . . . . . . .

Sensors and Accessories

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

User Interfaces

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Install Analog Sensors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply Air Sensor (SAT)

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Outdoor Air Sensor (OAT)

. . . . . . . . . . . . . . . . . . . . . . . . . .

Space Temperature Sensor (SPT)

. . . . . . . . . . . . . . . . . . . . .

Sensor(s) (IAQ and OAQ)

. . . . . . . . . . . . . . . . . . . . . .

Relative Humidity Sensors

. . . . . . . . . . . . . . . . . . . . . . . . . .

Installing Discrete Inputs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compressor Safety

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Humidistat

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Single Enthalpy (Outdoor Enthalpy)

. . . . . . . . . . . . . . . . . .

Differential Enthalpy

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fire Shutdown

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filter Status

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fan Status

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Occupancy

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Communication Wiring--Protocols

. . . . . . . . . . . . . . . . . . . . .

General

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I--Vu OPEN

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BACnet MS/TP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Modbus

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Johnson N2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LonWorks

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Access

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

START--UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Additional Installation/Inspection

. . . . . . . . . . . . . . . . . . . . .

Service Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fan Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compressor 1 and Compressor 2 Test

. . . . . . . . . . . . . . . . .

Heat 1 and Heat 2 Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reversing Valve Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dehumidification Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Exhaust Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Economizer Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Analog Output 2 Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setpoint

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inputs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clockset

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

USERPW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Occupancy

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Indoor (Supply) Fan

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cooling

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Economizer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Exhaust

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Heating

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Indoor Air Quality

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dehumidification

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Demand Limit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unoccupied Free Cooling

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Optimal Start

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fire Shutdown

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compressor Safety

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fan Status

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filter Status

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Door Switch

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Linkage

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thermistor Troubleshooting

. . . . . . . . . . . . . . . . . . . . . . . . .

Software Version

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Communication LED’s

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alarms

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Third Party Networking

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

APPENDIX A -- USER INTERFACE MENUS

. . . . . . . . . . . .

APPENDIX B -- THIRD PARTY POINTS LIST

. . . . . . . . . . .

RTU--OPEN START--UP SHEET

. . . . . . . . . . . . . . . . . . . . . .

7310 W. Morris St.

Indianapolis, IN 46231

Printed in U.S.A.

Edition Date: 08/10

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

Catalog No:48---50HCTQ---01T

Replaces: NEW

Summary of Contents for 48/50HC04---14

Page 1: ...mpressor 2 Test 13 Heat 1 and Heat 2 Test 13 Reversing Valve Test 13 Dehumidification Test 14 Power Exhaust Test 14 Economizer Test 14 Analog Output 2 Test 14 Configuration 14 Setpoint 14 Unit 14 Inpu...

Page 2: ...RNING GENERAL The RTU OPEN controller is an integrated component of the Carrier rooftop unit Its internal application programming provides optimum performance and energy efficiency RTU OPEN enables th...

Page 3: ...3 C10818 Fig 1 RTU OPEN Control Module...

Page 4: ...d S Space temperature sensor SPS SPPL SPP SPPF 33ZCT55SPT 33ZCT56SPT or 33ZCT59SPT S Indoor air quality sensor 33ZCSENCO2 33ZCT55CO2 33ZCT56CO2 required for demand control ventilation S Outdoor air qu...

Page 5: ...5 C10819 Fig 2 Typical Factory Option Wiring...

Page 6: ...rs and BACview6 must be addressed Use the jumpers on the SPS sensor s circuit board and refer to the BACview6 s installation instructions for addressing For Rnet wiring up to 500ft 152m use 18 AWG 4 c...

Page 7: ...7 BLK RED SPACE TEMPERATURE AVERAGING 4 SENSOR APPLICATION SPACE TEMPERATURE AVERAGING 9 SENSOR APPLICATION LEGEND Factory Wiring Field Wiring 1 2 C07133 Fig 5 Space Temperature Averaging C10820 Fig...

Page 8: ...actory default control for the Humidi MiZert 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...

Page 9: ...NIT SHUTDOWN Smoke Alarm Signal input to RTU OPEN NOTE Input 5 can also be wired into J5 3 Filter Status The filter status accessory is a field installed accessory This accessory detects plugged filte...

Page 10: ...to the RTU OPEN is through plug J19 See Fig 13 for wiring Refer to the RTU OPEN 3rd Party Integration Guide for more detailed information on protocols 3rd party wiring and networking NOTE Power must...

Page 11: ...ev 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 I...

Page 12: ...ere is a 10 minute auto logout if a screen is left idle See Appendix A for navigation and screen content Virtual BACview Virtual BACview is a freeware computer program that functions as the BACview6 H...

Page 13: ...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...

Page 14: ...upied Cooling Setpoint The cooling setpoint the controller maintains during the unoccupied period Range 55 99_F Effective Heating Setpoint The current setpoint value heating operation will control to...

Page 15: ...nsor 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 5n_F Default 5n_F Cooling Lockout...

Page 16: ...able 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...

Page 17: ...ing a local or OPEN schedule The push button will override an unoccupied period to occupied for the specified time duration BAS On Off When Occupancy Source is set to BAS On Off RTU OPEN follows occup...

Page 18: ...ons 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 SP...

Page 19: ...figured 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 dehumidific...

Page 20: ...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 i...

Page 21: ...nsor 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...

Page 22: ...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 3 flashes then off Control module has just been for...

Page 23: ...e value is less then the low allowed value or Space value is greater then the high allowed value Alarming Temperature spt_alrm_temp Shows temperature that caused alarm N A N A Alarm Limit Exceeded spt...

Page 24: ...aced 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 senso...

Page 25: ...ndicates 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...

Page 26: ...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...

Page 27: ...vice Configuration Maintenance Alarms Linkage BACview Navigation STATUS MAINT ALARM BACnet LINKAGE SETPOINT Alarm Login Keypad Sched UserPw Weekly schedule Network Exceptions ClockSet ALARMS DST LINKA...

Page 28: ...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...

Page 29: ...re sa_temp xxx F Outdoor Air Temperature oa_temp xxx F Space Relative Humidity space_rh 0 100 Indoor Air CO2 iaq 0 5000 ppm Outdoor Air CO2 oaq 0 5000 ppm Economizer Output econ_output 0 100 open LINK...

Page 30: ...ty Set point unocc_de hum_stpt 30 100 rh 95 DCV Max Ctrl Setpoint iaq_stpt_max 0 9999 ppm 650 Power Exhaust Setpoint pexh_stpt 20 90 Open 50 Sched Weekly schedule MON SUN none BACview Only Exceptions...

Page 31: ...lter Service Alarm Timer filter_service_hrs 0 9999 hr 600 Pushbutton Override pb_enable Disable En able Enable Setpoint Adjustment stpt_adj_enable Disable En able Enable Setpoint Adjustment Range stpt...

Page 32: ...Contact Compressor Safety Input 3 Switch Configuration di3_type N O N C N O Input 5 Function di5_function 1 No Function 2 Fire Shut down 3 Fan Status 4 Filter Status 5 Remote Oc cupancy 6 Door Contac...

Page 33: ...3 phase gas units HC04 09 3 phase gas units and All 12 30 gas units Continuous Occupied Exhaust occ_exh No Yes No Indoor CO2 Sensor Value Min mA iaq_ref_lo_ppm 0 9999ppm 0 Indoor CO2 Sensor Value Max...

Page 34: ...ble Active Compressor Stages comp_run x Active Heat Stages heat_run x Enthalpy Status enthalpy_status High Low Humidistat Input Status humstat_status Low High Filter Status filter_status Clean Dirty D...

Page 35: ...t_alrm_status Normal Alarm Alarming Temperature spt_alrm_temp xxx F Alarm Limit Exceeded spt_alrm_lmt xxx F High Supply Air Temperature sat_hi_alarm Normal Alarm Low Supply Air Temperature sat_lo_alar...

Page 36: ...rete in 10030 BI 30 SNVT_switch 95 nvo CompSafety Compressor Safety Status R comp_status BV 1008 Continuous Occu pied Exhaust R W occ_exh BV 9002 Cooling Lockout Temperature R W oat_cl_lockout AV 9002...

Page 37: ...R filter_status BV 1004 Fire Shutdown R fire_alarm BV 7007 discrete in 10032 BI 32 SNVT_switch 95 nvoFireShut down Fire Shutdown Status R fire down_status BV 1005 Heat Stage 1 Relay State R heat_1 BV...

Page 38: ...Low Space Temp Alarm R spt_lo_alarm BV 7012 discrete in 10039 BI 39 SNVT_switch 95 nvo LoSpaceTemp Low Supply Air Tem perature R sat_lo_alarm BV 7021 discrete in 10040 BI 40 SNVT_switch 95 nvoLoSATAl...

Page 39: ...emp_p 105 nviUnoc cCoolSP Setpoint Effective Cooling Setpoint R W eff_cl_stpt AV 4 Setpoint Effective Heating Setpoint R W eff_ht_stpt AV 5 Setpoint Heating Occupied Setpoint R W occ_ht_stpt AV 3002 f...

Page 40: ...10024 BI 24 SNVT_switch 95 nvoFanStatus Switch Configuration R di_cfg_alarm BV 7025 System Cooling De mand Level R cool_de mand_level AV 9006 System Heating De mand Level R heat_de mand_level AV 9036...

Page 41: ...y Setpoint occ_dehum_stpt 0 unocc setpoint rh 60 Unocc Relative Humidity Setpoint unocc_de hum_stpt 30 100 rh 95 DCV Max Ctrl Setpoint iaq_stpt_max 0 9999 ppm 650 Power Exhaust Setpoint pexh_stpt 20 9...

Page 42: ...s 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 Adjustm...

Page 43: ...Switch Configuration di3_type N O N C N O Input 5 Function di5_function 1 No Function 2 Fire Shutdown 3 Fan Status 4 Filter Status 5 Remote Occu pancy 6 Door Contact Fire Shutdown Input 5 Switch Confi...

Page 44: ...s heat_stages 1 2 0 no heat 0 50 series cooling only units 1 All TCQs and HCQs Low Nox units single phase gas units TC04 09 low and TC05 07 med heat 3 phase gas units 2 TC04 and 08 09 med TC05 09 high...

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