The direct fired air make up units have been designed to provide customers with a reliable air heating system, capacity of heat from 600,000 BTU to 2.0Million BTU, providing from 6,000 CFM to 20,000 CFM of air (for applications out of this range, please contact Crossing Air-Tech Systems).

Efficiency with 97%, clean combustion air. Specially designed profile plates and well-mixed air before burner section for re-circulating units are some of the advantages.

Upright and recalculating models as well as standard and optional performance and safety features, high quality parts and workmanship provide more reasons to utilize a Crossing Air-Tech Systems Air Make Up Systems for your application.

ORDERING INFORMATION

Provide Crossing Air-Tech Systems direct gas heaters as specified: Model No.; Capacity: BTU & CFM; Discharge Temperature of Fahrenheit; Fuel; Elec. Supply; Gas inlet press W.C; and Discharge of Vi, Phi, Hz.

Air Make-Up Unit.

CAPACITY	6,000	8,000	10,000		12,000	14,000		16,000	18,000	20,000
(CFM)
BUT	0.5	0.6	1		1.2	1.5		1.6	1.8	2
(MILLION)
MOTOR HP	3-5	5	5-7.5		7.5-10	10		10-15	15	20-25
VOLTAGE	208-230	208-230	208-230		208-230	208-230		208-230	208-230	208-230
	460-575	460-575	460-575		460-575	460-575		460-575	460-575	460-575
PHASE	1-3	1-3	1-3		1-3	1-3		1-3	1-3	1-3
TEMP.(F)	80	80	80-160		80-160	80-160		80-160	80-160	80-160
SINGLE	*	*	*		*	*		*	*	*
MODE
DUAL			*		*	*		*	*	*
MODE
FUEL	N.GAS	N.GAS	N.GAS		N.GAS	N.GAS		N.GAS	N.GAS	N.GAS
	PROPANE	PROPANE	PROPANE		PROPANE	PROPANE		PROPANE	PROPANE	PROPANE
GAS W.C.	7?o:p>	7?o:p>	7?o:p>		7?o:p>	7-12?o:p>		7-12?o:p>	7-12?o:p>	7-12?o:p>
Hz	60	60	60		60	60		60	60	60
				DIMENSIONS OF AMU (INCHES)

CAPACITY (CFM)	L	W	H
6000-12000	108	64	56
14000-2000	140	78	68

ETL approved in the Year of 2004. Register No. 3052031

CASING
Heater casing is fabricated of heavy duty 18 Gauge satin-coated steel. Base frame is integral iron channel construction. The unit is equipped with large access doors that make the blower, motor, drives, burner and controls fully accessible. All units are insulated with 1" high quality insulation. Units are equipped with a water resistant control enclosure housing for all electrical controls and gas manifold. The units are painted with two-component epoxy coating.

BLOWER
Units are equipped with SWDI and DWDI forward curved centrifugal blowers, dynamically balanced, complete with a polished ground shaft. Drivers are adjustable to within 5% above or below midpoint r.p.m., up to 10 HP. On larger units, blowers are supplied with fixed drives.

BURNER
The units are fitted with high efficiency burners. Burners are direct fired. The velocity of the air stream is maintained between 1600 & 4500 FPM. The arrangement and shape of the air holes in the baffles attached to the burner casting provide the injection of proper combustion air at all rates of firing. Over 30 to 1 available. The burner section is manifold individually to accomplish a desired capacity. These burners are brand name, precision built, sturdy, and compact and maintenance free.

DAMPER
Units come complete with a two position, parallel blades, motorized inlet damper Blades are roll formed, triple V groove 18 gauge galvanized steel with molded synthetic bearings. All dampers are seated and low leak.

ELECTRICAL
Units are internally fully factory wired and tested. Units are equipped wit non-fused disconnect switch in NEMA housing. Field wiring connections are easily made between the numbered terminal strips.