4421 Tradition Trail ● Plano, Texas 75093 ● 972-964-2700 ● 800-836-7472
URL:
www.iscenclosurecooling.com
● Email:
SP-ENG-211-100-11 Rev 1.5
8
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P a g e
CAUTION
If mounting the air conditioner to the enclosure door, confirm with the enclosure manufacturer that the
door’s hinges will support the air conditioner’s added weight (see equipment specifications). Ensure
that when the door is fully open that the enclosure will not topple over due to the off-center load.
Unit Specifications
The following table provides electrical and refrigeration specifications for the EL-20B Series Air
Conditioners.
EL-20B Series
Nominal Capacity Rating: 20,000 BTUH
Standard Maximum Ambient: 131°F
Model
Operating
Voltage
Range
(Volts)
Inrush
Current
(Start
Up
Current)
(Amps)
Loading
Current
(Running
Current)
(Amps)
SCCR
(Short
Circuit
Current
Rating)
(Amps)
Recommended
Circuit
Protection
(Amps)
KVA
Rating
(K-
Watts)
Refrigerant
Type
Refrigerant
Amount
(ounces)
Low/High
Unit
Pressures
(psi)
Noise
Level
(dBA)
Weight
(Unit/Ship
(lbs)
EL-20B-236
207-253
51.50
13.7
*2
25 Amp Class
CC, CCMR Time
Delay *
3.1
R407f
42
140 / 397
n/a
205/226
EL-20B-486
440-480
24.68
6.56
160K
12 Amp Class
CC, CCMR Time
Delay *
3.1
R407f
42
140 / 397
n/a
320/342
* Time-delay Fuses with the following electrical characteristics are recommended. Fast -acting fuses
are not recommended.
% of Ampere Rating
Opening Time
110 %
15min Minimum
125 %
1hr Maximum
200 %
12sec Minimum
4min Maximum
*2
SCCR rating is based on the SCCR rating for the circuit protection device installed in the panel /
enclosure per UL50 & UL508a to protect the AC unit. Typically 100KA – 200KA for Time-Delay Fuses.