Carrier 58CVA Installation, Start-up, Operating And Service And Maintenance Instructions

Carrier 58CVA Installation, Start-up, Operating And Service And Maintenance Instructions Manual pdf 35 page image

35BURNERORIFICEA93059Fig. 50 -- Orifice HoleR Y W G10 TURNSTHERMOSTAT SUBBASETERMINALS WITHTHERMOSTAT REMOVED(ANITICIPATOR, CLOCK, ETC.,MUST BE OUT OF CIRCUIT.)HOOK-AROUNDAMMETEREXAMPLE: 5.0 AMPS ON AMMETER10 TURNS AROUND JAWS = 0.5 AMPS FOR THERMOSTATANTICIPATOR SETTINGFROM UNIT 24-VCONTROL TERMINALSA96316Fig. 51 -- Amp. Draw Check with AmmeterStart--Up ProceduresFIRE OR EXPLOSION HAZARDFailure to follow this warning could result in personalinjury, death, and/or property damage.Never purge a gas line into a combustion chamber. Nevertest for gas leaks with an open flame. Use a commerciallyavailable soap solution made specifically for the detectionof leaks to check all connections. A fire or explosion mayresult causing property damage, personal injury or loss oflife.! WARNINGELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury, or death.Blower access door switch opens 115--v power to control.No component operation can occur unless switch is closed.Caution must be taken when manually closing this switchfor service purposes.! WARNING1. Purge gas lines after all connections have been made.2. Check gas lines for leaks.3. To Begin Component Self--Test:Remove Blower Access Door. Disconnect the thermostatR lead from furnace control board. Manually close blowerdoor switch. Turn Setup DIP switch SW1--6 ON. (See Fig.26, 53 and Table 10.)NOTE: The furnace control allows all components, except thegas valve, to be run for short period of time. This feature helpsdiagnose a system problem in case of a component failure.Component test feature will not operate if any thermostat signal ispresent at the control.Refer to service label attached to furnace or See Fig. 52.Component test sequence is as follows:a. Inducer motor starts on high--speed and continues torun until Step d. of component test sequence.b. Hot surface igniter is energized for 15 sec., then off.c. Blower motor operates for 15 sec.d. Inducer motor goes to low--speed for 10 sec., thenstops.e. After component test is completed, one or more statuscodes (11, 25, or 41) will flash. See component testsection of service label (Fig. 52) in furnace for explan-ation of status codes.NOTE: To repeat component test, turn setup switch SW1--6OFF, then back ON.4. Turn setup DIP switch SW1--6 OFF. Reconnect R lead tofurnace control board, release blower door switch and re-install blower access door.5. Operate furnace per instruction on inner door.6. Verify furnace shut down by lowering thermostat settingbelow room temperature.7. Verify furnace restarts by raising thermostat setting aboveroom temperature.58CV