ADC AD-464 service manual +Z=X

The dryer is equipped with a pneumatically operated heat reclaimer damper, which when opened, will recirculate approximately fifteen percent (15%) of the dryer’s exhaust air.

The heat reclaimer dampener is closed until ignition of flame has been established. Then, the damper piston is actuated, opening the damper and recirculating fifteen percent (15%) of the exhaust air back over the gas burner and into the tumbler. The damper remains open for the rest of the drying cycle. On cool down, the damper closes, exhausting ALL of the 13,000 cfm which ensures a fast cool down of the load.

NOTE: Gas Dryers must have a "Y" dimension of 1-3/16".

HEAT RECLAIMER ADJUSTMENT

1. REMOVE ELECTRICITY FROM THE UNIT.

2. LOOSEN HEAT RECLAIMER ADJUSTMENT NUTS ON ALL FOUR (4) CORNERS OF THE HEAT RECLAIMER PISTON.

3. ADJUST THE BOTTOM HEAT RECLAIMER NUTS DOWN TO THEIR DESIRED POSITION WHICH WILL GIVE THE PROPER PISTON STROKE.

EXAMPLE: IF THE DESIRED PISTON STROKE IS TWO (2) INCHES (5.1 CM), THAN THE DISTANCE "X" IN THE ILLUSTRATION

MUST BE TWO (2) INCHES (5.1 CM).

4. TIGHTEN TOP HEAT RECLAIMER NUTS DOWN ONTO THE BOTTOM HEAT RECLAIMER NUTS.

HEAT RECLAIMER SETTINGS

Z = 1-5/8

Y+Z=X	Y	%HR	Inches Reclaimed
1-1/8"	1/2"	7.46	1-1/4"
2-5/8"	1"	15.67	2-5/8"
3-1/8"	1-1/2"	25.37	4-1/4"
3-5/8"	2"	34.32	5-3/4"
4-1/8"	2-1/2"	43.28	7-1/4"
4-5/8"	3"	50.74	8-1/2"
5-1/8"	3-1/2"	58.95	9-7/8"

FULL OPEN 16-3/4"

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