1232°F MINIMUM INSTALLEDAMBIENT OR FREEZEPROTECTION REQUIREDA93058Fig. 17 --- Freeze ProtectionUNIT DAMAGE HAZARDFailure to follow this caution may result in unit componentdamage.Do not use ethylene glycol (Prestone II antifreeze/coolant orequivalent automotive type).CAUTION!6. Replace drain connection cap and clamp to inducer hous-ing.7. Replace main furnace door.8. Propylene glycol need not be removed before restartingfurnace.WIRING DIAGRAMSSee Fig. 15, 16 and 21 for the Deluxe 4--Way Multipoise Furnacewiring diagrams.TROUBLESHOOTINGUse the troubleshooting guide, the status code LED on thefurnace control and the component test to isolate furnaceoperation problems.A more detailed troubleshooting guide is available from yourdistributor.For an explanation of status codes, refer to service label locatedon back of main furnace door. (See Fig. 20.)The furnace control stores all status codes for a period of 72hours, regardless of 115--v or 24--v power interruption.NOTE: Removing blower access panel opens blower accesspanel door switch and terminates 115--v power to furnace control.Before removing blower access panel or turning off 115--v power,look into blower access panel sight glass for current LED status.1. To retrieve status code, proceed with the following:NOTE: NO thermostat signal may be present at furnace controland all blower time delay periods must be completed.a. Leave 115--v power to furnace turned on.b. Remove main furnace door.c. Look into blower access panel sight glass for currentLED status code.d. Remove blower access panel.e. Turn setup switch SW1--1 to ON position. (See Fig.16 or 21 for location.)f. Manually close blower access panel door switch. Use apiece of tape to hold switch closed.ELECTRICAL SHOCK, UNIT MAY NOTOPERATE HAZARDFailure to follow this warning could result in personalinjury, or death.Blower access panel door switch opens 115--v power tofurnace control. No component operation can occurunless switch is closed. Caution must be taken whenmanually closing this switch for service purposes.! WARNINGg. The AMBER LED will flash the status codes in theorder of occurence. Record status codes until statuscode 11 flashes (1 short and 1 long).h. After status code #11 flashes, the status codes willrepeat until setup switch SW1--1 is turned off.i. Remove tape to release blower access panel doorswitch and replace blower access panel.j. Operate furnace through 1 heat cycle to test for properoperation and check LED status.k. If furnace is operating properly and LEDs indicateproper operation, replace main furnace door.2. Status codes are erased after 72 hours or they can bemanually erased by performing the following procedure:a. Leave 115--v power to furnace turned on.b. Remove main furnace door.c. Look into blower access panel sight glass for currentLED status code.d. Remove blower access panel.e. Turn setup switch SW1--1 to ON position. (See Fig.16 or 21 for location.)f. Jumper thermostat terminals R, W/W1, and Y/Y2 onfurnace control.g. Manually close blower access panel door switch. Use apiece of tape to hold switch closed.h. After status code 11 flashes for at least 2 times, removeR, W/W1, and Y/Y2 jumpers.58MVB