Carrier 50SZ Series Product Data

Also see for 50SZ Series: Manual Installation, Start-Up and Service Instructions

Contents

150SZSingle---Packaged 13 SEER Heat Pump System1 and 3 Phase --- 2 to 5 Nominal Tons (024---060)Product DataC99001Unit 50SZSingle--Package Heat Pump for Residential and Light CommercialApplicationsS Low Sound LevelsS 13 SEERFEATURES/BENEFITSOne--piece heat pump with optional electric heater, low installationcost, dependable performance and easy maintenance.Efficient operationHigh--efficiency design with SEERs (Seasonal Energy EfficiencyRatios) of 13.0 and HSPFs (Heating Seasonal Performance Factors)of up to 7.7.Easy InstallationFactory--assembled package is a compact, fully self--contained,heat pump unit that is pre--wired, pre--piped, and pre--charged forminimum installation expense. 50SZ units are available in a varietyof standard capacity ranges with voltage options to meet residentialand light commercial requirements. Units install easily on a rooftopor at ground level.Durable, dependable componentsScroll compressors are designed for high efficiency. Each com-pressor is hermetically sealed against contamination to help pro-mote longer life and dependable operation. Vibration isolation pro-vides quiet operation. Compressors have internal high--pressure andovercurrent protection.Direct--drive multi--speed, PSC (permanent split capacitor)blower motor is standard on all 50SZ models.Direct--drive, PSC condenser--fan motors are designed to help re-duce energy consumption and provide for cooling operation downto 40_F (4.4_C) outdoor temperature. MotormasterR II low ambi-ent kit is available as a field--installed accessory and does not requirea special motor.Corporate thermostats work with Carrier’s small packaged prod-ucts as a system to promote year round comfort.Refrigerant system is designed to provide dependability. Liquidrefrigerant strainers are used to promote clean, unrestricted opera-tion. Each unit leaves the factory with a full refrigerant charge. Re-frigerant service connections make checking operating pressureseasier.Low--Pressure/Loss--of--Charge Switch assures added safety andreliability for the compressor.Indoor and outdoor coils are computer--designed for optimumheat transfer and cooling efficiency. The indoor coil is fabricatedfrom copper tube and aluminum fins and is located inside the unitfor protection against damage. The outdoor coil is internallymounted on the top tier of the unit. A FIOP (Factory--Installed Op-tion) metal louvered grille is available on all models. Copper fincoils and pre--coated fin coils are available from the factory by spe-cial order. These coils are recommended in applications where alu-minum fins are likely to be damaged due to corrosion. They are idealfor seacoast applications.Low sound ratings ensure a quiet indoor and outdoor environmentwith sound ratings as low as 72 dBA. (See page 3.)Easy to service cabinets provide easy single--panel accessibility toserviceable components during maintenance and installation. Theunit base, with integrated drain, provides easy ground level installa-tion with or without a mounting pad. Convenient handholds are pro-vided to manipulate the unit on the job site. A nesting feature ensuresa positive unit base to roof curb seal when the unit is roof mounted.A convenient 3/4--in. wide perimeter flange makes frame mountingon a rooftop easy.Downflow operation is easily provided in the field to allow verticalductwork connections. The unit base utilizes knockout style sealson the bottom openings to ensure a positive seal in the horizontal air-flow mode.Standard metal duct covers with insulation come with the unit andcover the duct openings. These can be left in place if the units areconverted to downshot.