Carrier 42BHC, 42BVC manual Table of contents

Fan wheels are designed to provide low operating costs

The forward-curved, centrifugal, double-inlet fans are statically and dynamically balanced at the factory to minimize transmission of vibration

to the building structure.

The belt-driven motor (single or three phase) has a variable-pitch pulley which adjusts at the jobsite to accom- modate limited ranges of air quantities and pressures.

All motors (single and three phase) are UL listed, factory wired, single speed with thermal overload protec- tion and are continuous duty rated. Motors are supplied with permanently

provided on the top and bottom of each corner of the unit One-in. duct collars on discharge and on return are fur- nished standard. These integral duct collars cut installation time and labor expense.

Durable construction means easy-to-maintain units

The 42BHC,BVC fan coils casings are fabricated from heavy-gage galvanized G90 steel, reinforced for maximum rigidity and structural strength. Remov- able side panels with tool-less camlock fasteners allow easy access for servic- ing interior components.

One-inch matte surface, fiberglass thermal/acoustical insulation lines the fan coil cabinets to prevent sweating and to muffle sound transmission.

The stainless steel, double-sloped condensate drain pan extends under full coil surface to cut maintenance costs.

Slide-in return-duct collar filter makes it possible to remove and replace the filter without disturbing return air ductwork.

lubricated bearings, class-B insulation and are open drip-proof. The motor mount has an adjustable platform for easy belt adjustment. The motor and its mounting are independently isolated from the cabinet and the blower. An adjustable pitch pulley allows cfm bal- ancing to meet system requirements. Motor drive packages are provided with keyed pulleys.

Complete factory assembly minimizes on-the-jobsite costs and problems

Compact, lightweight units are designed for easy mounting. Knockouts designed to accept 3/8-in. threaded rods are

Table of contents

Page

Features/Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,2

Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Options and Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,5

Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-18

Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-21

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-33

Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-36

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Guide Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39,40

INTERNAL FEATURES OF A 42BHC FAN COIL UNIT

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