BTB Series

*Certified by Intertek (bearing the ETL mark) for compliance to applicable codes and standards
Corrosion resistant coatings for refrigerant coils and tubing
Built-in, controls throat for operational control of system
Spark resistant fan and blower construction
Totally Enclosed Fan-Cooled (TEFC) motors
EPA approved HFC type refrigerants
All welded/bolted construction, type 304, stainless steel cabinet and chassis
Fully serviceable from access panels and external grilles

Remote operating panel for multiple unit functionality
Single or three phase operation in 60 or 50 Hz applications
Advanced chemical filtration packages
Total nominal cooling from 1 to 30 tons
Explosion proof electric heat (limited by temperature code and system size)
All welded/bolted construction, type 316, stainless steel cabinet and chassis for added corrosion protection in offshore applications
Configurable for operation in various non-hazardous and hazardous rated locations
Protective component coatings for prolonged life in corrosive environments
Ventilation packages to maintain specified air changes
NFPA 496 packages for automatic control of Types X, Y, or Z positive pressure and purge air flow for the space
Low/High ambient packages for operation in severe duty environments
Sound attenuator for supply air noise control in manned applications
Water cooled condenser configurations also available

*Certification may not apply to all configurations. Please contact our technical sales department for more information.

Class	Hazardous Material in Surrounding Atmosphere
Class I	Hazardous because flammable gases or vapors are present in the air in quantities sufficient to produce explosive or ignitable mixtures.
Class II	Hazardous because combustible or conductive dusts are present.
Class III	Hazardous because ignitable fibers or flying’s are present, but not likely to be in suspension in sufficient quantities to produce ignitable mixtures. Typical wood chips, cotton, flax and nylon. Group classifications are not applied to this class.

Division	Presence of Hazardous Material
Division 1	The substance referred to by class is present during normal conditions.
Division 2	The substance referred to by class is present only in abnormal conditions, such as a container failure or system breakdown.

Group	Hazardous Material in Surrounding Atmosphere
Group A	Hydrogen, fuel and combustible process gases containing more than 30% hydrogen by volume or gases of equivalent hazard such as butadiene, ethylene, oxide, propylene oxide and acrolein.
Group B	Hydrogen, fuel and combustible process gases containing more than 30% hydrogen by volume or gases of equivalent hazard such as butadiene, ethylene, oxide, propylene oxide and acrolein.
Group C	Carbon monoxide, ether, hydrogen sulfide, morphline, cyclopropane, ethyl and ethylene or gases of equivalent hazard.
Group D	Gasoline, acetone, ammonia, benzene, butane, cyclopropane, ethanol, hexane, methanol, methane, vinyl chloride, natural gas, naphtha, propane or gases of equivalent hazard.
Group E	Combustible metal dusts, including aluminum, magnesium and their commercial alloys or other combustible dusts whose particle size, abrasiveness and conductivity present similar hazards in connection with electrical equipment.
Group F	Carbonaceous dusts, carbon black, coal black, charcoal, coal or coke dusts that have more than 8% total entrapped volatiles or dusts that have been sensitized by other material so they present an explosion hazard.
Group G	Flour dust, grain dust, flour, starch, sugar, wood, plastic and chemicals.