Product Details
Note about this specification: These specifications are written in “Masterformat" as published by the Construction Specification Institute. Please feel free to copy this specification directly into your building spec. Cooling only/electric heat packaged rooftop HVAC guide specifications Size range: 15 and 20 nominal tons Carrier Model Number: 50TCQD17,24 Part 1 — (23 06 80) Schedules for decentralized HVAC equipment 1.01 (23 06 80.13) Decentralized Unitary HVAC Equipment Schedule A. (23 06 80.13.A.) Rooftop unit schedule 1. Schedule is per the project specification requirements. Part 2 — (23 07 16) HVAC equipment insulation 2.01 (23 07 16.13) Decentralized, Rooftop Units: A. (23 07 16.13.A.) Evaporator fan compartment: 1. Interior cabinet surfaces shall be insulated with a minimum 1/2-in. thick, minimum 11/2- lb density, flexible fiber- glass insulation bonded with a phenolic binder, neoprene coated on the air side. 2. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation. Part 3 — (23 09 13) Instrumentation and control devices for HVAC 3.01 (23 09 13.23) Sensors and Transmitters A. (23 09 13.23.A.) Thermostats 1. Thermostat must a. energize both “W" and “G" when calling for heat. b. have capability to energize 2 different stages of cooling, and 2 different stages of heating. c. include capability for occupancy scheduling. Part 4 — (23 09 23) Direct-digital control system for HVAC 4.01 (23 09 23.13) Decentralized, Rooftop Units: A. (23 09 23.13.A.) PremierLink ™ controller 1. Shall be ASHRAE 62-2001 compliant. 2. Shall accept 18-32 VAC input power. 3. Shall have an operating temperature range from –40°F (–40°C) to 158°F (70°C), 10% to 95% RH (non-condensing). 4. Shall include an integrated economizer controller to support an economizer with 4 to 20 mA actuator input and no mi- croprocessor controller. 5. Controller shall accept the following inputs: space temperature, setpoint adjustment, outdoor air temperature, in- door air quality, outdoor air quality, indoor relative humidity, compressor lock-out, fire shutdown, enthalpy, fan status, remote time clock/door switch. 6. Shall accept a CO2 sensor in the conditioned space, and be Demand Controlled Ventilation (DCV) ready. 7. Shall provide the following outputs: economizer, fan, cooling stage 1, cooling stage 2, heat stage 1, heat stage 2, heat stage 3/exhaust/reversing valve/dehumidify/occ upied. 8. Unit shall provide surge protection for the controller through a circuit breaker. 9. Shall be Internet capable, and communicate at a Baud rate of 38.4K or faster.
Specifications
- Brand: CARRIER
- Model: 50TCQD17
- Color: Black, Red
- Product Dimensions: 74 x 47 x 33
- Manufacturer: CARRIER