Carrier WeatherMaker 48TC Series - Gas Heat;Electric Cooling Packaged Rooftop; HVAC Guide Specifications

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GUIDE SPECIFICATIONS -- 48TC**04--16
Gas Heat/Electric Cooling Packaged Rooftop
HVAC Guide Specifications
SizeRange: 3to15NominalTons
Section Description
23 06 80 Schedules for Decentralized HVAC Equipment
23 06 80.13 Decentralized Unitary HVAC Equipment Schedule
23 06 80.13.A. Rooftop unit sche dule
1. Schedule is per the project specifica tion requi rement s.
23 07 16 HVAC Equipment Insulation
23 07 16.13 Decentralized, Rooftop Units:
23 07 16.13.A. Evaporator fan compartment:
1. Interior cabinet surfaces shall be insulated with a minimum 1/2--in. thick, minimum 1 1/2 lb density, flexible
fiberglass insulation bonded with a phe nolic bi nder, neoprene coated on the air side.
2. Insulation and adhesive shall meet NFPA 90A requirements for flam e spread and smoke generation.
23 07 16.13.B. Gas heat compartment:
1. Aluminum foil--faced fiberglass insulation shall be used.
2. Insulation and adhesive shall meet NFPA 90A requirements for flam e spread and smoke generation.
23 09 13 Instrumentation and Control Devices for HVAC
23 09 13.23 Sensors and Transmitters
23 09 13.23.A. Thermosta ts
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.
23 09 23 Direct--digital Control system for HVAC
23 09 23.13 Decentralized, Rooftop Units:
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 operati ng temperature range from --40_F(--40_C) to 158_F(70_C), 10% -- 95% RH (non--condens-
ing).
4. Shall include an integrated econom izer controller to support an economizer with 4 to 20 mA actuator input and
no microprocessor controller.
5. Controller shall accept the following inputs: space temperature, setpoint adjustment, outdoor air temperature,
indoor 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 CO
2
sensor in the conditioned space, and be Demand Control Ventilation (DCV) ready.
7. Shall provi de the fol lowing outputs: e conomizer, fan, cooling stage 1, cooling stage 2, heat stage 1, heat stage 2,
heat stage 3/ e xhaust/ reve rsing valve/ dehumidify/ occupied.
8. Unit shall provide surge protection for the controller t hrough a circ uit brea ker.
9. Shall be Internet capable, and communicate at a Baud rate of 38.4K or faster
10. Shall have an LED display independently showing the status of activity on the communication bus, and processor
operation.
11. Shall include an EIA--485 protocol communication port, an access port for connection of e ither a c omputer or a
Carrier technician tool, an EIA--485 port for network communication to intelligent space sensors and displays,
and a port to connect an optional LonWorks plug--in com munications card.
12. Shall have built--in Carrier Comfort Networkt (CCN) prot ocol, and be compatible wit h othe r CCN devices,
including ComfortLinkt and ComfortVIEWt controllers.
13. Shall have built--in support for Carrier techni cian t ool.