VF Series C Vertical Floor Fan Coil Unit - Enviro-Tec

FORM ET115.24-NOM10 (1210)All field wiring should be done in accordance withgoverning codes and ordinances. Any modification ofthe unit wiring without factory authorization will resultin voiding of all factory warranties and will nullify anyagency listings.The manufacturer assumes no responsibility for anydamages and/or injuries resulting from improperly fieldinstalled or wired components.Fan speed can be varied with optional SCR. SCR isshipped wired to high speed tap only. Wiring to mediumor low taps could cause excessive vibration, noise andoverheating which can lead to motor failure.10SECTION 2 - START-UPGENERALBefore beginning any start-up operation, the startuppersonnel should familiarize themselves with theunit, options and accessories, and control sequence tounderstand the proper system operation. All personnelshould have a good working knowledge of generalstart-up procedures and have the appropriate start-upand balancing guides available for consultation.The initial step in any startup operation should be a finalvisual inspection. All equipment, plenums, duct-work,and piping should be inspected to verify that all systemsare complete and properly installed and mounted, andthat no debris or foreign articles such as paper or drinkcans are left in the units or other areas. Each unit shouldbe checked for loose wires, free blower wheel operation,and loose or missing access panels or doors. Except asrequired during start-up and balancing operations, nofan coil units should be operated without all the properductwork attached, supply and return grilles in place,and all access doors and panels in place and secure.A clean filter of the proper size and type must also beinstalled. Failure to do so could result in damage to theequipment or building and furnishings, and/or void allmanufacturers’ warranties.COOLING/HEATING SYSTEMPrior to the water system start-up and balancing, thechilled/hot water systems should be flushed to cleanout dirt and debris, which may have collected in thepiping during construction. During this procedure,all unit service valves must be in the closed position.This prevents foreign matter from entering the unit andclogging the valves and metering devices. Strainersshould be installed in the piping mains to preventthis material from entering the units during normaloperation.During system filling, air venting fromthe unit is accomplished by the use of thestandard, manual or optional automatic airvent fitting installed on the coil. In the caseof the manual air vent fitting, the screwshould be turned counterclockwise no morethan 1-1/2 turns to operate the air vent. Automatic airvents may be unscrewed one turn counterclockwiseto speed initial venting but should be screwed in forautomatic venting after start-up operations.The air vent provided on the unit is notintended to replace the main system airvents and may not release air trappedin other parts of the system. Inspect theentire system for potential air traps andvent those areas as required, independently.In addition, some systems mayrequire repeated venting over a periodof time to properly eliminate air fromthe system.Fan coil units are not intended for useas temporary heat/cool or ventilationduring building construction. Theunits are not designed or equippedto operate in a dusty environment.Fan wheels can become coated withconstruction dust, resulting in anunbalanced wheel. This can in turncontribute to reduced motor life. Inletfilters cannot provide adequate protectionas they will quickly becomeclogged. Failure to operate the unitin the condition outlined above couldresult in damage to the equipment orbuilding and furnishings, and/or voidall manufacturer’s warranties.Do not operate unit without panelsfully installed.Do not allow supply or return airgrilles to be blocked.Make sure units are properly wiredprior to unit startup.AIR SYSTEM BALANCINGAll ductwork must be complete and connected, and allgrilles, filters, access doors and panels must be properlyinstalled to establish actual system operating conditionsBEFORE beginning air balancing operations.Each individual unit and attached ductwork is a uniquesystem with its own operating characteristics. For thisENVIRO-TEC ®