1. Steam and Hot Water Horizontal and Vertical

2.  Available in steam or hot water  Casing constructed out of 20 gauge die-formed steel  Standard with adjustable horizontal louvers  Totally enclosed fan motor standard  (19) Sizes 18-360 MBH  Coil connections on top and bottom of unit  ETLc Certified

3.  Cast bronze saddles braised to copper header  Copper tubing  Aluminum fins  Factory tested at 200 PSI  Max working pressure 150 PSI  Max steam temperature 366 ⁰F  Pipe connections have internal threads for ease of connection

4. Hot water only Casing constructed out of 20 gauge die-formed steel Standard with adjustable horizontal louvers Totally enclosed fan motor standard (4) Sizes 8-36 MBH. Coil connections on side of unit OSHA fan guard is standard ETLc Certified

5. Coil is serpentine design with 3/8” copper tubing. Tubing connections shall be 3/8” copper tubing, type “M” Aluminum fins Factory tested at 200 PSI Max working pressure 150 PSI Pipe connections have internal threads for ease of connection

6.  Vertical louvers are available as a field installed accessory  Allows for the adjustment of airflow for 4-way air control

7.  Available in steam or hot water  Casing formed by two square steel plates  Totally enclosed fan motor standard  (15) Sizes 41-705 MBH  Coil connections on top and bottom of unit  ETLc Certified

8.  Copper coil with aluminum fins mechanically bonded to the tubes  Coils are tested at 375 PSI  Max working steam pressure of 75 PSI or hot water up to 225 PSI or 325 ⁰F  Threaded steel pipe coil connections

9.  Field knock-outs  (15) Sizes 34-620 MBH  Reduced temperature rise

10.  OSHA Fan Guards Louver Cone Diffuser

11.  Explosion Proof  Totally Enclosed

12.  Steam Pressure Control  Strap on Hot Water Control

13.  Manual Starter  5.0 Amp Speed Control Switch

14.  V1 – Phenolic Coating (Air Dried) ◦ The unit is coated with the Heresite VR-514 coating. ◦ It is a special primer-finish combination that is specifically designed for salt water services. ◦ It is ideal for use in building located on or near the ocean or other large bodies of salt water.  V2 – Phenolic Coating (Baked) ◦ The unit is coated with the Libcote-7-9818 coating. ◦ It is specifically designed for use in moist, wet or damp environments. ◦ It is ideal for use in waste water treatment plants or in spaces with excessive amounts of steam or humidity in the air.

15.  U1- Line Voltage Stat “Off/Auto Switch”  U2 – Line Voltage Stat “Auto/Off/Fan Switch”  U3 – Line Voltage Stat “Auto/Off/ Fan Switch”

16.  U4 – Celsius Line Voltage Thermostat  (Fahrenheit version shown)  W1 – T6169C Line Voltage Thermostat w/Subbase (Light Duty) – (VS Only)

17.  W2 – T4051A Line Voltage Thermostat (Heavy Duty)  W4 – Q651A1009 Stat Subbase Only (Used with T4051A1003 for “Off/Auto Switch”)

18.  115/230 Single Phase 208/230 Three Phase 460/575 Three Phase

19. When selecting unit size and location keep the following items in mind:  How close will the unit be to people and small items? You don’t want a unit 4 feet from someone’s desk blowing 5,500 CFM at them  Always direct units toward areas of higher heat loss such as bay doors and truck loading docks  Fans with higher RPM will be louder than fans with lower RPM  See unit IOM for additional information