Carrier 48MA/50ME016-040 Bedienungsanleitung

Installation, Start-Upand Service InstructionsCONTENTSPageSAFETY CONSIDERATIONS ...2INSTALLATION ...2-34Gene

Unit has factory-installed gas shutoff valves. Install gasshutoff valve external to unit if required by code (Fig. 8).After piping is complete, pressu

Use the following formula to determine the percent volt-age imbalance.% Voltage Imbalance:max voltage deviation from average voltage= 100 ×average vol

Table 3 — Unit 50ME Electrical DataUNIT50MEVOLTAGE(3 Ph, 60 Hz)VOLTAGERANGECOMPNO. 1COMPNO. 2OFMFLAIFMPOWERSUPPLYMin Max RLA LRA RLA LRA No. 1 No. 2 N

Table 5 — Unit 50ME Electrical Application DataUNIT50MENOMINALVOLTAGEkW(UnitTotal)MCACoolingHeatingCircuitUnitCommonFeedSizeIFMHp12016 5208/23043/ 535

Field Control WiringZONE THERMOSTATS — Install a Carrier approved ac-cessory zone thermostat assembly in each zone according toinstallation instructio

Fig. 10 — Zone Control Board Component Location (cont)15

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipmentcan be hazardous due to system pressure and electrical com-ponents. Only

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

CONDENSER SECTION AIRFLOWCONN — ConnectionNOTES:1. Space required for service and airflow allaround and above unit is 36 inches.2. For additional infor

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

LEGENDC—ContactorCR — Control RelayGV — Gas ValveHA — Heat AnticipatorHR — Heating RelayTC — Thermostat, CoolingTH — Thermostat, HeatingTRAN — Transfo

ACCESSORY REMOTE CONTROL PANEL — This central-station control can be set to override zone thermostat modesettings to lock out heating or cooling for t

The heating thermostat energizes a 115-v solenoid by meansof a gas valve relay and the pilot lights. The main burnercomes on after the pilot is proven

3. Turn system switch to ON position. Set each zone ther-mostat at setting to call for heat. Pilot will ignite.NOTE: A time-delay relay will shut unit

Fig. 33 — Spoiler Screw LocationLEGENDCOMPR — CompressorCOND — Condensing*AFS1 deenergizes control circuit if loss of indoor air occurs.†Factory-suppl

When OAT is open, final stage heating element in all zonemodules is inactive. When OAT is closed, final stage heatingelement in a zone module may be ene

HEATING (48MA) — On call for heating from a zone, theforced draft blower will start and the pilot will light. Thezone burner will ignite after the pil

CONDENSER SECTION AIRFLOWCONN — ConnectionNOTES:1. Space required for service and airflow allaround and above unit is 36 inches.2. For additional infor

TO ADD OR REMOVE OIL1. Close liquid line and hot gas bypass shutoff valves. SeeFig. 31.2. Pump down compressor and close suction and dischargeservice

Condenser FansShut off service switch to deenergize condenser-fanmotors.ADJUSTMENT — Remove fan guard from top of unit. Re-move rubber hubcap from fan

PULLEY REMOVAL1. Shut off unit power.2. Loosen fan motor mounting plate and remove belt.3. Loosen pulley setscrew.4. Slide pulley off shaft.Reverse st

LEGEND1—Bearing Liner2—Speed Nut (5⁄16in.)3—Washer4—Rivet5—Speed Nut (7⁄16in.)6—Speed Nut (1⁄4in.)7—Damper Lever8—Linkage Bar9—Linkage Rod (15 in.)10

PACKAGED SERVICE TRAININGOur packaged service training programs provide an excellent way to increase your knowledge of theequipment discussed in this

START-UP CHECKLISTMODEL NO.:DATE:SERIAL NO.:TECHNICIAN:PRE-START-UP:M VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNITM REMOVE ALL SHIPPI

Rigging Unit — Inspect unit for shipping damage, andfile any damage claim immediately with transportationcompany.Lift unit with cables and spreader bar

Table 1 — Physical DataUNIT 48MA/50ME 016 024 028 030 034 040Zone Modules (Quantity) 8 8 10 10 12 12Nominal Cooling Capacity (tons) 15 20 25 28 30 37O

EVAPORATOR (ZONE MODULE) AIRFLOWCONN — Connection*Not used on 48MA016,024 (8 zone module units).NOTES:1. For additional information, see Table 1 and F

EVAPORATOR (ZONE MODULE) AIRFLOWCONN — Connection*Not used on 50ME016,024 (8 zone module units).NOTES:1. For additional information, see Table 1 and F

Condensate Drains — Pipe nipples covered with foamrubber insulation are shipped in unit return air filter section(6 nipples in units 48MA, 4 nipples in