Electric I&O Manual
IM111116 RL:2A AUG 2018
6
PART NUMBER
WATTS MOUNTING HEIGHT
AVERAGE
COLD
PROTECTED
ESD/ELD-4039-24 4,000 8' - 12' [2.4 m - 3.7 m] 8' x 10' [2.4 m x 3.0 m] 6' x 8' [1.8 m x 2.4 m] 10' x 12' [3.0 m x 3.7 m]
ESD/ELD-5039-24 5,000 8' - 12' [2.4 m - 3.7 m] 9' x 10' [2.7 m x 3.0 m] 7' x 8' [2.1 m x 2.4 m] 11' x 12' [3.4 m x 3.7 m]
ESD/ELD-6061-24 6,000 10' - 14' [3.0 m - 4.3 m] 11' x 11' [3.4 m x 3.4 m] 10' x 10' [3.0 m x 3.0 m] 12' x 12' [3.7 m x 3.7 m]
DUAL ELEMENT TYPICAL AREA COVERAGE - feet [m]
SINGLE ELEMENT TYPICAL AREA COVERAGE - feet [m]
PART NUMBER
WATTS MOUNTING HEIGHT
AVERAGE
COLD
PROTECTED
ES/EL-1533-20 1,500 6' - 8' [1.8 m - 2.4 m] 5' x 5' [1.5 m x 1.5 m]
3' x 3' [.91 m x .91 m] 7' x 7' [2.1 m x 2.1 m]
ES/EL-2039-24 2,000 7' - 9' [2.1 m - 2.7 m] 6' x 6' [1.8 m x 1.8 m]
4' x 4' [1.2 m x 1.2 m] 8' x 8' [2.4 m x 2.4 m]
ES/EL-2539-24 2,500 7' - 9' [2.1 m - 2.7 m] 7' x 7' [2.1 m x 2.1 m]
5' x 5' [1.5 m x 1.5 m] 9' x 9' [2.7 m x 2.7 m]
ES/EL-3061-24 3,000 7' - 9' [2.1 m - 2.7 m] 8' x 8' [2.4 m x 2.4 m]
6' x 6' [1.8 m x 1.8 m] 10' x 10' [3.0 m x 3.0 m]
ES/EL-4061-24 4,000 8' - 11' [2.4 m - 3.4 m] 10' x 10' [3.0 m x 3.0 m] 8' x 8' [2.4 m x 2.4 m] 12' x 12' [3.7 m x 3.7 m]
GENERAL NOTES
electricSchwank [ES/ESD] and EL/ELD Series heaters are furnished with wall/ceiling mount swivel brackets.
These brackets may be discarded when the heater is suspended with chains, or other special bracketing.
See 'Specifications' page 2 for full listing of models, voltages, and amperages. At times, especially when the
mounting height might be quite low, a greater quantity of smaller heaters can help prevent overheating.
Heaters up to 15 AMPS can be controlled with a simple INF controller. This low cost controller, which is actually
an infinite switch, gently pulses the heat on and off at regular intervals when not on full power.
Dual Element Heaters can be wired with Duplex/Stack Switch, which enables the ability to operate each element
independently, providing for two-stage [half power/full power] capability.
For best comfort heat, heat from two sides rather than from just one side. However, there are site conditions where
this is not practical.
Coverage areas indicated above are typical approximate dimensions and will vary depending on outdoor
temperature, wind velocity, and personal comfort levels.
Indoor and well-protected environments will generally exceed the average chart values. Heaters will provide less
than average coverage in extremely cold/windy conditions.
MAINTENANCE INSTRUCTIONS
Before performing any maintenance or cleaning,
power must be disconnected
and the heater cool to touch.
Heater housing, reflectors, and heating element can be rinsed with a hose or wiped down with isopropyl
alcohol, acetone, or glass cleaner. Use a clean, scratch-free rag or paper towel. Any oxidation, surface rust, or
discoloration can be removed with a stainless steel cleaner or metal polish on the bare metal surface.
Make sure all water, solvents, or cleaners are removed and the heater is dry before reconnecting the power.
