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21UH-PRC001-EN
Model
Number
Description
MODEL P UNIT HEATER
Digits 1,2,3 — Product Type
UHP
Digit 4 — Development Sequence
A
Digits 5,6,7 — Unit Size
042
064
080
102
122
146
166
202
252
280
336
384
500
600
720
Digit 8 — Coil Type
P = Steam or Hot Water*
Digit 9 — Fin Series
4 = 144*
Digit 10 — Design Sequence
C
Digit 11 — Tube Material
A = Copper*
C = Red Brass
F = Steel
Digit 12 — Fin Material
A = Aluminum*
C = Copper
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 — Fan Guard
0 = Standard*
A = OSHA Guard**
Digit 16 — Unit Coating
0 = None
R = Epoxy
T = Epoxy Phenollic
W = Baked Phenolic
Digit 17 — Diffuser
0 = None
A = Fin Diffuser
C = Fin Diffuser w/coating
Digit 18 — Manual Starter
0 = None
A = Manual Starter w/o overload protection
Digit 19 — Speed Controller (115/60/1
standard motors)
0 = None
D = Solid-State Speed Controller
(only available up to unit size 102)
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
Motors
Standard motors are 115/60/1, totally
enclosed, with thermal overload
protection for all units through size 280P.
Standard motors for 42P, 64P and 80P
are standard pole, sleeve bearing. The
102P motor is permanent split capacitor
type with sleeve bearings. Motor for unit
sizes 122P through 280P are permanent
split capacitor type with permanently
lubricated ball bearings. Motors used on
unit sizes 336P through 720P are 230/460/
60/3, totally enclosed, with permanently
lubricated ball bearings. Unit sizes
smaller than 336P are also available with
230/460/60/3 motors.
All motors, fractional hp and integral hp,
have Class “B” insulation. The 115/60/1
motors used as standard on unit sizes
42P through 102P 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 vertical heaters.
**For the 3-phase and explosion-proof motors, the OSHA
guard ships separately.
UHP A 0 4 2 P 4 C A A 1 T A R C A D B E
123 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21