Carrier 50ZH Series Product Data

Also see for 50ZH030: Installation, Start-Up and Service Instructions Product data Installation instructions Installation, Start-Up and Service Instructions

Contents

2350ZH2. All fan motors shall have permanently lubricated bear-ings and inherent automatic-reset thermal overloadprotection.3. Outdoor-fan motor shall be totally enclosed.K. Special Features:1. Electric Resistance Heaters:a. Open-wire nichrome elements with all necessarysafety and operating controls.b. Heaters are UL listed as indicated on basic unit in-formative plate.c. Each heater assembly shall include the followingsafety features:1) Automatic-reset switches2) Heat limiters for primary and secondary, over-current, and thermal protection.d. Available with power single-point connections.2. Outdoor Thermostat Kit:Thermostat allows for staging of electric heaters basedon outdoor-air temperature.3. Thermostat and Subbase:Provides staged cooling and heating automatic (ormanual) changeover, fan control.4. Electronic Programmable Thermostat:Thermostat provides 2-stage heating and 2-stage coolingcontrol with remote communication ability.L. Grille1. Louvered Grille:Louvered grille shall be standard on all units.M. Special Features Available1. Coil Options:Shall include factory-installed optional copper/cop-per and vinyl-coated refrigerant coils.2. Economizer:a. Economizer controls capable of providing freecooling using outside air.b. Equipped with low leakage dampers not to exceed3% leakage, at 1.0 in. wg pressure differential.c. Spring return motor shuts off outdoor damper onpower failure.3. Flat Roof Curb:Curbs shall have seal strip and a wood nailer for flash-ing and shall be installed per manufacturer’s instruc-tions.4. Manual Outdoor Air Damper:Package shall consist of damper, birdscreen, and rain-hood which can be preset to admit outdoor air for year-round ventilation.5. Thermostat:To provide for one-stage heating and cooling in addi-tion manual or automatic changeover and indoor fancontrol.6. Low Ambient Package:Shall consist of a solid-state control and outdoor coiltemperature sensor for controlling outdoor fan mo-tor operation, which shall allow unit to operatedown to 0° F outdoor ambient temperature in cool-ing.7. Filter Rack Kit:Shall provide filter mounting for downflow applica-tions.8. Square-To-Round Duct Transitions:Shall have the ability to convert the supply and returnopenings from rectangular to round. (030-048 only)9. Crankcase Heater:Shall provide anti-floodback protection for low-loadcooling applications. (Standard on 042-060 sizes)10. Electric heaters:a. Electric heater shall be available as a field-installedoption.b. Heater elements shall be open wire type, adequatelysupported and insulated with ceramic bushings.c. Electric heater packages must provide single pointpower connection capability.11. Compressor Hard start kit:Shall be available to give a boost to the compressormotor at each start-up.Guide specifications (cont)

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