Bryant 350MAV user manual Control Center

TWINNING AND/OR

BLOWER OFF-DELAYCOMPONENT TEST

TERMINAL

		Y1DHUM	BLOWER OFF-DELAY
				90 150		120 180					(24-VAC 0.5 AMP MAX.)
											HUMIDIFIER TERMINAL
24-V THERMOSTAT		G
TERMINALS	24V	COM
		W/W1									TRANSFORMER 24-VAC
		Y/Y2	TEST/TWIN			PLT					CONNECTIONS
		R		HUM
	STATUS		0.5 AMP@24VAC
3-AMP FUSE		FUSE 3-AMP
	CODE		SEC-2 SEC-1
LED OPERATION &			EAC-2	L2
DIAGNOSTIC LIGHT	LED	NUETRAL
				PLT
											PL1-LOW VOLTAGE MAIN
115-VAC(L2)NEUTRAL		BLW									HARNESS CONNECTOR
CONNECTIONS				1
	COOL
COOL
HEAT	HEAT								L1
						FAN	1-AMP@
			SPARE-1 SPARE-2			EAC-1 115VAC		PR-1	PL2	1
	SPARE-1							115 VAC (L1) LINE			PL2-HOT SURFACE
	SPARE-2				FAN
BLOWER SPEED								VOLTAGE CONNECTION			IGNITER & INDUCER
											MOTOR CONNECTOR
SELECTION TERMINALS
							EAC-1 TERMINAL
						(115-VAC 1.0 AMP MAX.)
											A02142

Fig. 12— Control Center

1.LED flashes a current status code, or code 11, 4 times. Record this status code for further troubleshooting.

2.The inducer will start and continue to run until test is over.

3.Hot surface igniter (HSI) is energized for 15 sec, then de-energized.

4.The blower motor operates on HEATING speed for 10 sec, then turns off.

5.The blower motor operates on COOLING speed for 10 sec, then turns off.

6.Blower operates on continuous fan speed, then turns off.

7.Inducer turns off.

8.The gas valve and humidifier terminal HUM are not energized for safety reasons.

32° F MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED

A93058

Fig. 13—Winterizing the Furnace

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