Carrier 50HEQ003-006- Manuals

5 Field connection terminals are removablefor easy wiring Low voltagefield wiringconduit Low voltage divider Fieldwiring Temporarycomputerconnection C07164 Fig. 2 -- Field Control Wiring Install Sensors The RTU--MP controller requires the installation of a spacetemperature sensor and the operation o...

6 2 3 4 5 6 1 SW1 SEN BRN (GND) BLU (SPT) SENSOR WIRING C07130 Fig. 3 -- Space Temperature Sensor Typical Wiring (33ZCT55SPT) 2 3 4 5 6 1 SW1 SEN SET Cool Warm BRN (GND) BLU (SPT) SENSOR WIRING JUMPERTERMINALSAS SHOWN BLK(T56) C07131 Fig. 4 -- Space Temperature Sensor Typical Wiring (33ZCT56SPT) OR ...

7 Table 2 – Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Supply Air Temperature Sensor, and Outdoor Air Temperature Sensor TEMP (C) TEMP (F) RESISTANCE (Ohms) –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 4...

9 E conomiz er Plug C o nnec tion LEG E N D --- --- --- --- Fi el d S up pl ie d W iri ng _______ Fa ct or y W iri ng Fi el dS up pl ie dD ev ic e C07147 C07148 For Si ngl e C om pr es so r U ni ts (N on --H ea tPum p Type ) 50HJ542479 Rev . 4 C07171 Fo r A ll O th er U nits F ig .7 -- R T U --M P C...

10 8 7 6 5 4 3 2 1 2 1 H G 24 VAC OR 24 VDC NC ALARMRELAYCONTACTS COMNO } 0-10VDCSIG COM (J4-6) 4-20mA (J4-5) + + - + - C07134 Fig. 8 -- Indoor/Outdoor Air Quality (CO 2 ) Sensor 33ZCSENC02) -- Typical Wiring Diagram COVER REMOVED SIDE VIEW C07135 Fig. 9 -- Outdoor Air Quality Sensor Cover Wiring th...

11 SINGLE-GANGALUMINUMBELL BOX 0.5000 IN.(12.7 mm) NPTTHREADEDCONDUITOPENINGS TYP. GROUND SCREW 4.9200 IN. (125.0 mm) 4.5625 IN. (115.9 mm) 2.8125 IN.(71.4 mm) FOAM COVERGASKET ALUMINUMCOVER 2.0000 IN.(50.8 mm) C07138 Fig. 12 -- Outdoor Air Temperature Sensor (P/N 33ZCSENOAT) LEGEND OA — Outdoor Air...

12 Space Relative Humidity Sensor (SPRH) The accessory space humidity sensor is installed on an interior wall to measure the relative humidity of the air within the occupiedspace.The use of a standard 2 x 4--in. electrical box to accommodate thewiring is recommended for installation. The sensor can ...

13 Relative Humidity Sensor (Polarized Male Connector) J4-1 or J4-4 + 24 VDC Supply Voltage J4-2 or J4-5 (-) 4 to 20 mA Current Loop Output to RTU-MP 4-20 VAC GND 0-5V mA or or VDC 0-10V SPAN ZERO C07210 Fig. 15 -- Wiring Outdoor Air Relative Humidity Sensor 3. Connect the sensor cable as follows: a...

15 24 VAC OUTPUT FROM N/C CONTACT WHEN THEOUTDOOR ENTHALPY IS LESS THAN THEINDOOR ENTHALPY (ENABLE ECONOMIZER) 24 VAC OUTPUT FROM N/O CONTACT WHEN THEINDOOR ENTHALPY IS GREATER THAN THEOUTDOOR ENTHALPY (ENABLE ENERGYSRECYCLER) 24 VAC SECONDARY HI LOW GND 24 VAC ENTHALPY 4-20 mA IN 24-36 VDCOUT JUMPE...

16 SW3 Protocol Selection PROTOCOL DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 BACnet MS/TP (Master) Unused OFF OFF OFF ON OFF Select Baud Select Baud Modbus (Slave) Unused OFF OFF ON ON OFF Select Baud Select Baud N2 (Slave) Unused OFF OFF OFF ON ON OFF OFF LonWorks Unused ON ON OFF ON OFF OFF OFF NOTE:DS = Di...

17 START-UP Refer to the base unit installation instructions for start--upprocedure and checklist. Field Service Test, explained below, will assist in proper start--up. Configuratin of unit parameters,scheduling options, and operation are also discussed in this section. Field Service Test The Field ...

19 IAQ Low Reference @ 4mA This is used when an IAQ sensor is installed on Input 1 or 2. This value is displayed and used when 4mA is seen at the input. Factory Default = 0 PPM Range = 0--400 PPM IAQ High Reference @ 20mA This is used when an IAQ sensor is installed on Input 1 or 2. Thisvalue is dis...

20 The Daily schedule is the lowest schedule in the hierarchy and isoverridden by both the Holiday and Override schedule. It consists of a start time, a stop time (both in 24 hour mode) and the sevendays of the week, starting with Monday and ending in Sunday. To select a daily schedule scroll to the...

22 Demand Limit If the RTU--MP receives a level 1 (one degree offset), 2 (two degree offset), or a 3 (4 degree offset) to the BACnet demand limitvariable, the controller will expand the heating and cooling setpoints by the configured demand limit setpoint value and remainin effect until the BACnet d...

23 Table 4 – Troubleshooting Alarms POINT NAME BACnet OBJECT NAME ACTION TAKEN BY CONTROL RESET METHOD PROBABLE CAUSE Safety Chain Alarm safety_chain Alarm Generated Immediate Shutdown Automatic Over load Indoor Fan or Electric Heater overheat. Fire Shutdown Alarm fire_alarm Alarm Generated Immediat...

24 Alarms Alarms can be checked through the network and/or the localaccess. All the alarms are listed in Table 4 with name, object name, action taken by control, reset method, and probable cause. There are help screens for each alarm on the local access display andlisted in Appendix A: Help Screens....

25 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 BACview 6 : 1. Press Function (FN) key and hold. 2. Then press period (.) 3. Release both b...

26 APPENDIX A — LOCAL ACCESS DISPLAY TABLES Screen Navigation STANDBY (FN + 4) HOME (FN + 5) Menu (FN + 1) Run Status (FN + 2) Setpoints Test Mode (FN + 9) Inputs Outputs Alarms Schedules Config (FN + 3) Network Occupancy (FN + 6) IndpOutputs Alarm Status (FN + 0) Daily Unit BACnet Login I/O Points ...

27 APPENDIX A — LOCAL ACCESS DISPLAY TABLES (CONT) Menu -- Run Status Screen Point Name BACnet Object Range Units Run Status Unit Run Status unit_stat OFF Fan Only Free Cooling Cooling Heating Dehumidification Service Test Shutdown System Mode sysmode Disable Test RUN occ_status Unoccupied / Occupie...