1-453.9 - SUBMITTAL DATA - power-throw steam/hot water unit heaters

Sep 10, 2026

SUBMITTAL DATA for power-throw steam/hot water unit heaters, dated September 2001. The document provides dimensional data and approximate shipping weights for multiple PT/PTN models, plus notes explaining outlet-temperature variants (suffix “L”) and tube material differences (PT copper vs PTN cupro/nickel). It also lists motor data by horsepower and electrical configurations, and includes specifications for tube size, wall thickness, aluminum fins, maximum coil ratings, and junction box requirements.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

Table 1.1 Dimensions

Model dimensions and shipping weights

Table 1.2 Motor Data

Motor HP and voltage/power codes

Table 1.3 Specifications

Tube, fins, coil ratings, and junction box

C US ® 1-453.9 September, 2001 SUBMITTAL DATA “power-throw” steam/hot water unit heaters Table 1.1 Dimensions 􀀁􀀂 | Model
Number | A | B | C | D | E | Fan
Diameter | Male
Conn. NPT | | Approx.
Shipping
Wt. (Lb. ) | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Top | Bottom | | | PT/PTN 279 | 34-3/4 | 22-5/8 | 25-1/4 | 16-3/4 | 16-3/4 | 21 | 2 | 1-1/4 | 122 | | PT/PTN 333 | 43-1/4 | 23-7/8 | 30 | 15-3/4 | 14-3/8 | 22 | 2-1/2 | 1-1/2 | 176 | | PT/PTN 385 | 43-1/4 | 25-3/4 | 30 | 15-3/4 | 14-3/8 | 27 | 2-1/2 | 1-1/2 | 184 | | PT/PTN 500 | 43-1/4 | 29 | 30 | 20-1/4 | 14-3/8 | 27 | 2-1/2 | 1-1/2 | 376 | | PT/PTN 610(L) | 51-1/2 | 29-5/8 | 30 | 20-3/8 | 21 | 30 | 2-1/2 | 1-1/2 | 472 | | PT 952 | 53-3/4 | 29-5/8 | 30 | 23-1/8 | 26-7/8 | 30 | 3 | 3 | 487 | 􀀁 Dimensions shown are for Standard and Low Outlet Temperature models. Suffix “L” indicates low outlet temperature model only. PT model has copper tubes, PTN models have cupro/nickel tubes. 􀀂 All dimensions in inches. Table 1.2 Motor Data 􀀃 | Model Number | Motor HP | Voltage, Motor Type and Power Code | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | 115/60/1 | 230/60/1 | 200-208/60/3 | 230/460/60/3 | 115/60/1 | 230/460/60/3 | 575/60/3 | 575/60/3 | | | | Totally
Enclosed
w/Thermal
Overload | Totally
Enclosed
w/Thermal
Overload | Totally
Enclosed | Totally
Enclosed | Explosion
Proof
w/Thermal
Overload | Explosion
Proof
w/Thermal
Overload | Totally
Enclosed | Explosion
Proof
w/Thermal
Overload | | | | 01 | 02 | 04 | 05 | 06 | 09 | 10 | 11 | | | | Amps | Amps | Amps | Amps | Amps | Amps | Amps | Amps | | PT/PTN-279 | 1/2 | 7.5 | 3.5 | 2.6 | 3.0/1.5 | 5.8 | 2.0/1.0 | 0.92 | 0.76 | | PT/PTN-333 | 1/2 | 8.8 | 4.4 | 3.7 | 3.5/1.8 | - | - | 1.24 | - | | PT/PTN-385 | 1 | - | - | 4 | 4.0/2.0 | - | 3.5/1.75 | 1.6 | 1.4 | | PT/PTN-500 | 1-1/2 | - | - | 5.8 | 5.2/2.6 | - | 5.8/2.9 | 2 | 2.32 | | PT/PTN-610 | 1-1/2 | - | - | 5.8 | 5.2/2.6 | - | 5.8/2.9 | 2 | 2.32 | | PT 952 | 2 | - | - | - | 6.8/3.4 | - | 6.2/3.1 | - | - | 􀀃 Ratings shown are for Standard and Low Outlet Temperature models. Table 1.3 Specifications | Copper/Cupro-Nickel Tube Size | | 5/8″ O. D. | | --- | --- | --- | | Tube Wall Thickness | | 0.028″ | | Aluminum Fins | | 0.010″ | | Maximum Coil Rating | Copper | 150 PSI/375°F | | | Cupro/Nickel | 250 PSI/400°F | | Junction Box | | --- | | All units include an electrical junction box either integral to the motor or attached to the unit casing. Explosion proof units include an explosion proof junction box attached to the motor. | Commercial HVAC&R Division • Modine Manufacturing Company • 1500 DeKoven Avenue • Racine, Wisconsin 53403-2552 Phone: 1 .800.828.4328 (HEAT) • Fax: 262 .636.1665 • [www.modine.com](www.modine.com) © Modine Manufacturing Company 2001 9/01- Litho in USA

FAQs

What does the suffix “L” indicate for these unit heater models?

Suffix “L” indicates a low outlet temperature model only.

How do PT and PTN models differ in tube materials?

PT models use copper tubes, while PTN models use cupro/nickel tubes.

What maximum coil ratings are provided for the copper and cupro/nickel tubes?

Copper is rated at 150 PSI/375°F, while cupro/nickel is rated at 250 PSI/400°F.

Sep 10, 2026

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