7.
15604-3
AUTOMATIC TEMPERATURE CONTROL (ELECTRIC)
In areas of a building that comply with the Americans with disabilities act,
thermostats shall be mounted at a height of 48" above a finished floor.
Industrial Temperature Controller:
l.
Furnish and install industrial/heavy commercial grade, Temperature Controllers
in NEMA 12, 3R, 4/4X process and production areas capable of controlling
heating and cooling equipment through motor starters, variable speed drives,
industrial relays or other equipment control devices.
The temperature controller shall be programmable for staged on-off heating and
cooling control with front mounted program pushbuttons with LCD backlit
display to show current temperature, setpoint and programming modes.
Temperature controller shall be wall mounted in a metal enclosure. The
enclosure shall meet the NEMA requirements of the area in which they are
installed. Minimum rating shall be dust tight, NEMA 12.
Power shall be 120 VAC with battery backup or programmed parameter stored
in non-volatile memory.
The controller will include a minimum of four (4) form C contacts rated a
minimum of 5 amps at 120 VAC.
Differential shall be programmable from 1-5 °F.
Temperature sensor shall be a shielded and water tight platinum RTD
temperature sensor mounted external to the control enclosure or remotely
mounted as required.
In areas of a building that comply with the Americans with disabilities act,
thermostats shall be mounted at a height of 48" above a finished floor.
Equivalent to:
a. Honeywell Model T775
b. Or equal
Commercial Room Thermostat:
l.
Furnish and install commercial grade thermostats in office and administrative
areas capable of controlling heating, cooling and ventilation. Provide cover
guards in publicly accessible areas.
Low voltage temperature controllers shall be programmable for multistage 7-
day heating and cooling control with front mounted program pushbuttons and
LCD backlit display to show current temperature, setpoint and programming
modes.
Temperature controller shall be wall mounted.
Power shall be 24/120 VAC with real time clock and battery backup or
programmed parameter stored in non-volatile memory.
Temperature sensor shall be a thermistor or RTD sensor internal to the unit.
In areas of a building that comply with the Americans with disabilities act,
thermostats shall be mounted at a height of 48" above a finished floor.
Duct and Immersion Thermostats:
l.
Duct and immersion thermostats of the single input type shall have integral
setpoint adjustments and throttling ranges adequate for the application. Duct
thermostats shall have sensing elements of sufficient length and accuracy to
measure average duct temperature in each location.
13089K
