Carrier 48HG014 Controls Operation And Troubleshooting

Contents

Carrier 48HG014 Controls Operation And Troubleshooting Manual pdf 9 page image

9Table 4 — Additional Analog InputsLEGENDTable 5 — Main Base Board and Economizer Control Board OutputsLEGENDTable 6 — CCN Communication Bus WiringINPUT PINCONNECTIONPOINTTERMINALCONNECTIONPOINTCOMMENTT55Space Temperature (SPT) J8 — 1,2 (MBB) TB3 — 7,8 Part No. = CEC0121448-01T56Space Temperature (SPT) and SpaceTemperature Offset (SPTO)J8 — 1,2,3 (MBB) TB3 — 7,8,9 Part No. = CEC0121503-01Indoor Air Quality (IAQ) J5 — 2,3 (ECB) TB5 — 2,3 Part No. = CRCBDIOX001A00Outdoor Air Quality (OAQ) J5 — 3,5 (ECB) TB5 — 3,4 Part No. = CRCBDIOX001A00ECB — Economizer Control BoardMBB — Main Base BoardOUTPUT PINCONNECTIONPOINTDESCRIPTIONC.A1 J10 — 11 (MBB) First compressor of Circuit AC.B1 J10 — 9 (MBB) First compressor of Circuit BC.C1 J10 — 6 (MBB) First compressor of Circuit CIFC J10 — 21 (MBB) Request for indoor fan. IGC controls the Indoor Fan Motor (48HG only)Fan Power J10 — 3 (MBB) Allows indoor fan to operateOFC1 J10 — 19 (MBB) Controls outdoor fan motor 1OFC2 J10 — 16 (MBB) Controls outdoor fan motor 3 and 6 (also 2 and 5 on size 028 units)OFC3 J10 — 13 (MBB) Controls outdoor fan motor 4W1 J10 — 27 (MBB) Request for first stage of heating. IGC controls heating (48HG only).W2 J10 — 25 (MBB) Second stage of heating.ALARM J10 — 23 (MBB) TB4 — 7,8Economizer Power J8 — 18 (ECB) ECB can turn off the power to the actuatorEconomizer Control Signal J7 — 1, 3 (ECB) Belimo Communication ProtocolPE_1 J8 — 3 (ECB) Power Exhaust Motor No. 1PE_2 J8 — 6 (ECB) Power Exhaust Motor No. 2ECB — Economizer Control BoardIFC — Indoor-Fan ContactorIGC — Integrated Gas ControllerMBB — Main Base BoardOFC — Outdoor-Fan ContactorMANUFACTURER PART NO.Alpha 2413 or 5463American A22503Belden 8772Columbia 02525Run StatusService TestTemperaturePressuresSetpointsInputsOutputsConfigurationTime ClockOperating ModesAlarmsAlarm StatusENTERMODEESCAPEFig. 7 — Scrolling ComfortLink™ Display