Carrier 42NL Original Instructions Manual

Also see for 42NH series: Installation, operation and maintenance instructions Installation, operation and maintenance instructions

Contents

Carrier 42NL Original Instructions Manual Manual pdf 3 page image

31 - FUNCTIONS AND CONFIGURATIONS• The Carrier 42NH and 42NL are available in differentsizes with 2-pipe, 2-pipe plus electric heater or 4-pipecoils, with an air flow range from 100 to 2300 m3/h, atotal cooling capacity range from 0.6 kW to 12 kWand a nominal heating capacity range from 0.8 kW to17 kW.• Compact and modular ducted unit, designed for anyfalse ceiling installation.• Reliable and economical for tertiary building as hotelguest rooms, offices or light commercial applications.• Low height of 235 mm (sizes 2/3/4/5) and 285 mm(sizes 6/7)• Compatible with the Carrier diffuser ranges.• Extremely low sound levels for ducted applications.• Five- to Six- speed fan AC motors offers a wide choiceof medium speeds.• Available with Low Energy Consumption variable-speed EC motor.• High-pressure centrifugal fan for 42NH Range• G1 filter as standard.• Safe factory installed electric heater with multiplecapacity stages choices.• Low water pressure drop with factory installed valves.• Factory installed options (valves and controllers) forfast and easy installation in false ceilings.1.1 - ModularityWith its two versions, the range is able to address allapplications.The 42NL version is optimised for simple soffitinstallations while the 42NH is optimised for air returnand supply ducted installations.42NH42NL1.2 - Configuration flexibilityEach of the 42NL and 42NH sizes can be provided:- With free inlet and/or outlet- With a rectangular flange air inlet and/or outlet(practical to connect the fan-coil unit to the airductwork).- With inlet and/or outlet plenums including largenumber of spigots diameters 160, 200 or 250 mmaccording to unit size.Below picture shows all available air distributionconfigurations on 42NL or 42NH (size 3 for example) withspigot diameter 200 mm.Large PlenumCompact PlenumRectangular FlangeControl (WTC; NTC; Electrical Box)Coil & Drain panINLET OPTIONS BASIC UNIT OUTLET OPTIONS