Carrier AQUASNAP 30RB060-390 Controls, Start-up, Operation, Service And Troubleshooting Instructions

Also see for AQUASNAP 30RBA315: Installation instructions

16Table 11 — Energy Management Module Heat Reclaim (EMM HR) Inputs and OutputsLocal Equipment Network — Information is trans-mitted between modules via a 3-wire communication bus orLEN (Local Equipment Network). External connection to theLEN bus is made at TB3.Board Addresses — All boards (except the main baseboard and the energy management module) have 8-positionDIP switches. Addresses for all boards are listed with the input/output tables for each board.Control Module CommunicationRED LED — Proper operation of the control boards can bevisually checked by looking at the red status LEDs (light-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 current software. If neces-sary, reload current software. If the 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 boardshould 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 at the board connectors. SeeInput/Output Tables for LEN connector designations. A 3-wirebus accomplishes communication between modules. These3 wires run in parallel from module to module. The J9A con-nector on the MBB provides communication directly to thescrolling marquee display or the Navigator™ display module.YELLOW LED — The MBB has one yellow LED. TheCarrier Comfort Network® (CCN) LED will blink during timesof network communication.Carrier Comfort Network (CCN) Interface — All30RB units can be connected to the CCN, if desired. The com-munication bus wiring is a shielded, 3-conductor cable withdrain wire and is field supplied and installed. The system ele-ments are connected to the communication bus in a daisy chainarrangement. The positive pin of each system element commu-nication connector must be wired to the positive pins of thesystem elements on either side of it, that is also required for thenegative and signal ground pins of each system element. Wir-ing connections for CCN should be made at TB3. Consult theCCN Contractor’s Manual for further information. See Fig. 11.NOTE: Conductors and drain wire must be 20 AWG (Ameri-can Wire Gage) minimum stranded, tinned copper. Individualconductors must be insulated with PVC, PVC/nylon, vinyl,Teflon, or polyethylene. An aluminum/polyester 100% foilshield and an outer jacket of PVC, PVC/nylon, chrome vinyl,or Teflon with a minimum operating temperature range of–20 C to 60 C is required. See Table 12 for recommended wiremanufacturers and part numbers.INPUT DESCRIPTION I/O TYPE I/O POINT NAME CONNECTION POINTPD.B Circuit B Pumpdown Pressure Transducer Pressure Transducer PRESSURECIR.BPD.B EMM-J8-CH6PD.A Circuit A Pumpdown Pressure Transducer Pressure Transducer PRESSURECIR.APD.A EMM-J8-CH5HRS.B Circuit B Liquid Subcooling — TEMPERATURECIR.BHRS.B —HRS.A Circuit A Liquid Subcooling — TEMPERATURECIR.AHRS.A —HRT.B Circuit B Liquid Temperature Temperature TEMPERATURECIR.BHRT.B EMM-J5-CH4HRT.A Circuit A Liquid Temperature Temperature TEMPERATURECIR.AHRT.A EMM-J5-CH3HEWT Heat Reclaim Entering Fluid Temperature TEMPERATUREUNITHEWT EMM-J5-CH2HLWT Heat Reclaim Leaving Fluid Temperature TEMPERATUREUNITHLWT EMM-J5-CH1C.FLO Condenser Flow Switch Status Switch INPUTSGEN.IC.FLO EMM-J5-CH15— Power (24 vac supply) — — EMM-J1-CH11,12— Local Equipment Network — — EMM-J9OUTPUT DESCRIPTION I/O TYPE I/O POINT NAME CONNECTION POINTCondenser 0-10 VDC Water Valve Output 0-10 VDC — EMM-J8-CH7CND.P Heat Reclaim Condenser Pump Status Contactor OUTPUTSGEN.OCND.P EMM-J2-CH16CN.HT Heat Reclaim Condenser Heater Contactor OUTPUTSGEN.OCN.HT EMM-J2-CH17HR2.A Circuit A, Leaving Air-Cooled Cond Solenoid Contactor OUTPUTSCIR.AHR2.A EMM-J2-CH18HR2.B Circuit B, Leaving Air-Cooled Cond Solenoid Contactor OUTPUTSCIR.BHR2.B EMM-J2-CH19HR3.A Circuit A, Entering Water-Cooled Cond Solenoid Contactor OUTPUTSCIR.AHR3.A EMM-J2-CH20HR3.B Circuit B, Entering Water-Cooled Cond Solenoid Contactor OUTPUTSCIR.BHR3.B EMM-J2-CH21HR4.A Circuit A, Leaving Water-Cooled Cond Solenoid Contactor OUTPUTSCIR.AHR4.A EMM-J2-CH22HR4.B Circuit B, Leaving Water-Cooled Cond Solenoid Contactor OUTPUTSCIR.BHR4.B EMM-J2-CH23HR1.A Circuit A, Entering Air-Cooled Cond Solenoid Contactor OUTPUTSCIR.AHR1.A EMM-J3-CH24HR1.B Circuit B, Entering Air-Cooled Cond Solenoid Contactor OUTPUTSCIR.BHR1.B EMM-J3-CH25Fig. 11 — ComfortLink™ CCN Communication Wiring