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UHS A
0 1 8 S
2
E
123
4
5 6 7 8
9
10 11 12 13 14 15 16 17 18 19 20 21
Digits 1,2,3 — Product Type
UHS
Digit 4— Development Sequence
A
Digits 5,6,7 — Unit Size
Standard
Modified
018
019
020
031
038
045
042
053
060
069
070
077
090
091
100
127
126
137
168
181
186
207
230
243
260
273
320
354
400
Digit 8 — Coil Type
S = Steam or Hot Water*
W = Hot Water (Adds a Spiral)
Digit 9 — Fin Series
2 = 132
8 = 108**
DIGIT 10 — Design Sequence
E
Digit 11 — Tube Material
A = Copper*
C = Red Brass
F = Steel
Digit 12 — Fin Material
A = Aluminum*
C = Copper
22
Model
Number
Description
MODEL S UNIT HEATER
A
A
1
T
A
W D
Digit 13 — Voltage
1 = 115/60/1*
2 = 208/60/3
3 = 230/60/3
4 = 460/60/3
5 = 575/60/3 (Totally Enclosed)
Digit 14 — Motor Type
T = Totally Enclosed*
E = Explosion Proof
Digit 15 — Motor Mount/Fan Guard
0 = Standard**
A = OSHA Fan Guard/Motor Mount (115 volt
totally enclosed motors ONLY)
B = Standard Fan Guard with Motor Base (3
phase or explosion proof motors ONLY)
Digit 16 — Special Coatings
0 = No Special Coatings
R = Epoxy Coating
T = Epoxy Phenolic Coating
W = Baked Phenolic Coating
Digit 17 — Diffuser
0 = None
B = Fin Diffuser
D = Fin Diffuser w/coating
Digit 18 — Manual Starter
0 = None
A = Manual Starter w/o overload protection
(Single Phase Only)
Digit 19 — Speed Controller (115/60/1
standard motors)
0 = None
D = Solid-State Speed Controller
(only available up to unit size 100)
Digit 20 — Thermostats
0 = None
B = Light-Duty T -stat
C = Heavy-Duty T -stat
Digit 21 — Subbase
0 = None
E = Light-Duty
F = Heavy-Duty
A D B E
Motors
Totally enclosed, 115/60/1 Class "B"
insulated, shaded pole and PSC motors
are STD. 1/25 through 1/8 hp are sleeve
bearing. 1/6 through 3/4 hp are ball
bearing. All single phase motors have
built-in overload protection. Sleeve
bearing motors can be oiled. Ball
bearing motors are permanently
lubricated. The
115/60/1 motors used as standard on unit
sizes 18S through 100S can be operated
at multiple speeds with the addition of a
solid-state control.
All units available with explosion-proof
motors.
*Standard features of stock horizontal unit heaters.
**Units equipped with 115 volt totally enclosed motors
come with a standard fan guard/motor mount. Units
equipped with 3 phase or explosion proof motors come
with no guard and the motors are base mounted.
UH-PRC001-EN
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