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This installation guide contains explanations about the safety and standard operating. Before installation and maintenance of Fan coil units , please read safety and warnings and keep guide carefully for installation and maintenance process. Please give!
FB4C models are R-410A Fan Coils designed for installation flexibility. These units are designed to meet the low air leak requirements currently in effect. A TXV is used on FB4C(S,Q)L. This valve is a bleed-through type and adjustable (if necessary). All FB4C fan coils use a multi-tap ECM motor for efficiency.
Before installing the fan coil, ensure that: - The place of installation has sufficient space for containing the device and for performing installation and maintenance (respect spaces fig. point 2).
Fan coil unit must be secured to the structure using field−supplied hardware. Allow a minimum of 24 inches (610mm) clearance from access panels. Recommended method of securing for typical applications: If fan coil is away from wall, attach pipe strap to top of fan coil using No. 10 self tapping screws.
Adjust the unit height to 35.0mm between the indoor unit bottom surface and the ceiling surface. Confirm with a level gauge that the unit is installed horizontally and tighten the nut and bolt to prevent unit failing and vibration. Open the ceiling board along the outer edge of the paper installation template. 4.
Ensure that the location is convenient for wiring, piping and drainage. The indoor unit must be installed in such that is free from any obstacles in path of cool air discharge and warm air return, and must allow spreading of air throughout the room (near the center of the room).
Hitachi technical and service documentation for Fan Coil Unit. Find installation and user manuals, catalogs, datasheets, brochures, and other PDF documents.
Reattach the removed service cover (c) to the bottom side. Attach 2 installation legs (d) from the vertical installation option kit to the service cover with the 4 screws (e) from the option kit. Reattach the air filter (a) on the service cover filter guide. The unit is ready for vertical installation. b.
The supply pipe can supply either hot or cold water to the unit. FWC06-07-08-09B7FV1B. 4-pipe fan coil units have two supply pipes and two return pipes. This allows either hot or cold water to enter the unit which makes it possible to heat and cool different areas of a building at the same time.
Refer to the installation manual of the fan coil unit for details on installing the fan coil unit. Be careful not to deform the unit piping by using excessive force when connecting the piping. Deformation of the piping can cause malfunction of the unit. If air, moisture or dust gets in the water circuit, problems may occur.
