Carrier 30XA080-500 Controls, Start-up, Operation, Service And Troubleshooting Instructions

Also see for 30XA325: Installation instructions Installation instructions

Carrier 30XA080-500 Controls, Start-up, Operation, Service And Troubleshooting Instructions Manual pdf 14 page image

©INPUT4-20 mA Demand Limit4-20 mA TemperatureReset]Cooling SetpointDemand Limit SW2Ice DoneOccupancy OverrideRemote Lockout SwitchSPTOUTPUT% Total CapacityRUN RSHD RNOTE: Used on 30XA080-500.Fig. 6 -- Energy Management ModuleTable 10 -- Energy Management Module (EMM) Inputs and OutputsDESCRIPTION I/O TYPE I/O POINT NAME CONNECTION POINT4-20 mA Demand Limit 4-20 mA INPUTS-_GEN.I-_DMND EMM-J7B-CH64-20 mA Temperature Reset/ 4-20 mA INPUT$-_GEN.I-_RSET EMM-J7A-CH5Cooling Set pointDemand Limit Step 2 Switch Input INPUT$-_GEN.I-_DLS2 EMM-J4-CH9Ice Done Switch Switch Input INPUTS-_GEN.I-MCE.D EMM-J4-CH 11AOccupied Schedule Override Switch Input INPUTS-_GEN.I-_OCCS EMM-J4-CH8Chiller Lockout Switch Input INPUT$-_GEN.I-_RLOC EMM-J4-CH 10Space Temperature Thermistor 10k Thermistor TEMPERATURE-_UNIT-_$PT EMM-J6-CH2DESCRIPTION I/O TYPE I/O POINT NAME CONNECTION POINT0-10 vdc OUTPUTS-+GEN.O-+CATO EMM-J8-CH7Run Relay Relay OUTPUT$-_GEN.O-_RUN EMM-J3-CH25Shutdown Relay Relay OUTPUTS-_GEN.O-_SHUT EMM-J3-CH24Local Equipment Network --Information is trans-mitted between modules via a 3-wire cornmunication bus orLEN (Local Equipment Network). External connection to theLEN bus is made fit TB3.Board Addresses -- All bofu'ds (except the Main BaseBoard, Energy Management Module Board, find CompressorProtection Module Bornd) have 8-position DIP switches.Addresses for all boards ate listed with the Input!Output Tablesfor each board,Control Module CommunicationRED LED -- Proper operation of the control boards can bevisually checked by looking at file red status LEDs (ligltt-emitting diodes). When operating correctly, the red statusLEDs will blink in unison at a rate of once every 2 seconds. Ifthe red LEDs are not blink in unison, verify that correct poweris being supplied to all modules. Be sure that the Main BaseBoard (MBB) is supplied with the cunent soflwme. If neces-sary, teload current soflwate. If tlte problem still persists,replace the MBB. A red LED that is lit continuously or blink-ing at a rate of once per second or faster indicates that the bomdshould be replaced.GREEN LED -- All boards have a green LEN (SIO) LEDwhich should be blinking whenever power is on. If the LEDsare not blinking as described check LEN connections forpotential communication errors fit the board connectot_. SeeInput/Output Table 2, and 4-10 for LEN Connector designa-tions. A 3-wire bus accomplishes communication betweenmodules. These 3 wires tun in parallel from module to module.The J9A connector on the MBB provides communication di-rectly to the Navigator :m display module.YELLOW LED- Tlte MBB has one yellow LED. TheCmtier Comfort Network® (CCN) LED will blink duringtimes of network communication.14