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The 42BHC units are designed to offer maximum flexibility
in application, accessibility for service, quiet operation and
durability.
Motors —
A wide selection of standard motors provides
efficient operation in ducted applications with excellent
performance with up to 2 inches of total static pressure.
Available motor options:
• 115 v, 208 v, 230 v and 277 v single-phase 60 Hz
• 208 v, 230 v and 460 v three-phase 60 Hz
• Open drip-proof motors
• External junction box
Coils —
A choice of two-pipe system with 4-row cooling/
heating or four-pipe system with 4, 6 or 8-row cooling and
1 or 2 row heating.
Electric heat —
Total electric heat eliminates the require-
ment for a boiler. Heating and/or cooling may be available
on an individual basis throughout the year. Resistance
electric heat is available from 1.0 kW to 40.0 kW (refer to
electric heater data table for availability per unit) with
single-stage or multiple-stage, single power source.
Voltages:
• 115 v, 208 v, 230 v and 277 v single-phase 60 Hz
• 208 v, 230 v and 480 v three-phase 60 Hz
Electric heat is available with the following staging options
(3-phase staging is balanced).
• 1 to 4 kW 1 stage only — single phase
• 5 to 12 kW 1 or 2 stage only — single phase
• 1 to 12 kW 1 stage only — 3 phase
• 15 to 20 kW 1 or 2 stage only — 3 phase
• 25 to 40 kW 1, 2, or 3 stage — 3 phase
Heater coils are constructed of high-grade resistance
wire that is supported by ceramic insulators on plated steel
brackets. These heat elements are suspended directly in
front of the outlet after the blower and the coil. High limit
thermal cutouts protect the heater in the event of air
failure.
Controls
• Interlocking disconnect switch
• Heater power fusing
• 24 v Class 2 transformer (40 va)
• 8-pole control terminal strip
• Auto reset temperature limit switch
• Airflow safety switch
• Motor power fusing
• Motor control contactor
Filters —
Filters are available, 2-in. pleated as standard.
One-in. pleated or two 1-in. throwaway filters are
available.
Insulation —
Units are available with edge sealed, 1-in.
thick Tuf-Skin™ RX or foil-faced insulation. (Tuf-Skin™ II
insulation is standard.).
Factory-installed options
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