Capacities | Zephyr ™ Burner
Capacities
Input million
Flame Length (see note 1)
Model
Btu/h HHV (kW LHV) inches (mm)
500
0.5 (147) 1.0 (293) 2.5 (733)
22 (560) 26 (660) 32 (810)
1000 2500
Static Air Pressure
Blower Power
Sound (dBA at 1 m)*
xxxxModel
Inch w.c. mbar
hp
(kW)
w/o filter w/filter
500-L, 1000-L 500-H, 1000-H
1
(2.5) (7.5) (2.5) (11.2)
0.33 0.50
(0.25) (0.37) (0.75) (1.49)
74 82 82 87
71
3
79 78 84
2500-L 2500-H
1
1.0 2.0
4.5
* Does not include combustion noise
1. See 4987 supplement for start-up instructions and operating data. 2 . Blower and burner nominal capacity is based on 1" (25 mm) air pressure differential across flame retainer. -L blowers are used for neutral pressure or suction applications. 3. Blower motors are suitable for 50 or 60 Hz operation. Operation with 50 Hz (190/380 V, 3 phase) will decrease the speed, and capacity of the blower. For neutral or suction applications having 50 Hz, select -H model to maintain burner capacity. 4. For the 500 and 1000-L and -H size burners, a 115 V, single phase motor is an option. 5. A UV-based flame supervision system must be designed to ignore spark detection by use of an appropriate flame relay or other code-compliant means, to prevent interruption of the ignition sequence.
AIR AND FUEL CONTROL OPTIONS (specify when ordering)
internal air damper (specify either manual adjustment or link to fuel valve)
internal air damper with manual adjustment
fuel connection
fuel connection
Fuel flow control components are remote from burner and sold as accessories. (Models 501, 1001, 2501)
Fuel flow control valve provided inside burner. Actuator (direct coupled) and mounting kit sold separately as accessories. (Models 502, 503, 1002, 1003, 2502 and 2503)
Bulletin 4987 Page 3
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