Submittal

11
For hazardous locations
Model EXUB explosion-proof unit heaters are designed for
rugged industrial applications, especially in hazardous locations
where there is always the possibility of explosion or fire due to
the presence of flammable gases, vapors or dusts. A variety of
mounting kits are available for field installation.
EXUB
Explosion Resistant Unit Heater
mining industry refinery petrochemical plant chemical plant paint room
Color
- Standard: red.
Finish
- Epoxy/polyester powder paint.
Voltage
- 208V, 240V, 480V, 600V, 1 or 3-phase.
Construction
- 14-gauge steel cabinet.
- Adjustable anodized aluminum louvers.
- Cast aluminum control and element
enclosure lids NEMA Type 7 and 9
with O-ring.
Protection
- High temperature pressure relief valve.
- Two high-limit temperature controls:
one with automatic reset and one with
manual reset.
Fan
- Explosion-proof, thermally protected,
permanently lubricated ball-bearing motor.
- 5 to 20 kW: 1/4 HP, 1725 rpm.
- 25 to 30 kW: 1/2 HP, 1725 rpm.
Approved Locations
• Class I, Divisions 1 & 2, Groups C & D.
• Class II, Divisions 1 & 2, Groups F & G.
• Temperature code T3B.
• Class I, Zones 1 & 2, Groups IIA & IIB, T3
Heat exchanger
- High grade metal-sheathed elements fins
with ethylene glycol/water solution.
- Long-life, low watt density.
- Evacuated and sealed, carbon steel tube
core with 10 aluminum fins per inch.
- Division System - T3B 165 °C (329 °F).
- Zone System - T3 200 °C (392 °F).
Temperature code
- T3B 165 °C (329 °F). Class I and II.
Control
- 120V control (standard).
- Optional 24V control.
- Optional built-in thermostat.
Installation
- Accessories available.
Warranty
- 3-year warranty against defects.
Temperature Limitations
Ambient temperature: -45 °C to 40 °C (-49 °C to 104 °F).
Maximum altitude ASL: 3048 m (10 000 ft.).
Features