4601 ELM ST 2024-12-05 - Laserfiche WebLink

Mechanical Specifications General have thermal overload protection and permanently The units shall be horizontal airflow as shipped and lubricated motor bearings. Motor/blower assembly convertible to downflow.All units shall be factory isolated from unit with rubber mounts. assembled,piped,internally wired and fully charged Outdoor Fan with refrigerant. Units shall be certified to UL Standard One direct-drive,statically and dynamically balanced 1995.All units shall be factory run tested to check propeller fan shall be used in a draw-through vertical cooling operation,fan and blower rotation and control discharge configuration. Permanently lubricated or TXV sequence. Units shall be designed to operate at weather proof motor shall have built-in thermal ambient temperatures between 1151F and 55°F in overload protection. cooling as manufactured. Cooling performance shall be rated in accordance with AHRI standards. System Controls Unit Casing System controls include condenser fan,evaporator fan All components shall be mounted in a weather- and compressor contactors. resistant steel cabinet with an enamel finish.Access Accessories Roof Curb panels shall be provided for unit controls and indoor The roof curb shall be designed to mate with the unit coil and fans. Indoor air section compartment shall be and provide support and complete weathertight completely insulated with fireproof, permanent, installation when properly installed.Adhesive back odorless fiber material. Knockouts shall be provided for polyurethane sealing strips shall be provided to ensure utility and control connections. Drain connections shall an airtight seal between supply and return openings of be provided to accommodate indoor water runoff. the curb and unit.The roof curb design allows field Compressor fabricated ductwork to be connected directly to the curb.Curb ships knocked down for field assembly,and The compressor shall be hermetically sealed,high includes factory installed wood nailer strips. efficiency scroll compressors. Internal overcurrent and overtemperature protection,internal pressure relief Electric Heaters shall be standard.Other features include centrifugal oil Each heater assembly shall include power supply pump,low vibration and noise. fusing if over 48 amps,automatic resetting limit Refrigeration System switches and heat limiters for thermal protection. Heaters shall be provided with polarized plugs for quick All units shall have refrigerant control.Service pressure connection to unit low voltage wiring. Electric heat tap ports and a refrigerant line filter shall be standard. modules shall be UL listed. Evaporator Coil Internally enhanced 3/8" OD seamless Single Source Power Entry copper tubing mechanically bonded to aluminum fins, factory pressure and leak tested at 480—650 psig.All This accessory when used with electric heat accessory units have TXV to control refrigerant flow. shall allow single source power connection to unit and heater combination.Single source power entry kits Condenser Coil shall have specific matching heater(s). Kit shall include The Spine Fin TM condenser coil shall be continuously high voltage terminal blocks,fuse blocks and fuses,cut- wrapped,corrosion resistant all aluminum with to-length interconnecting wiring,and junction box(if minimum brazed joints.This coil is 3/8" OD seamless required)to provide power sources with fuse aluminum tubing glued to a continuous aluminum fin. protection as required for both the unit and accessory Coils are lab tested to withstand 2.000 pounds of heater. Kit components shall install within the heater pressure per square inch.The outdoor coil provides cabinet in the heater access section.Single source low airflow resistance and efficient heat transfer.The branch power circuit shall be protected and wired in coil is protected on all four sides by louvered panels. accordance with local codes. Indoor Air Fan Constant Torgue,forward-curved,centrifugal wheel in a Composite Vortica®Blower housing. Motor shall 12 4W CC4060A-SUB-1 E-E N