Product data

121
c. A field-installed 460v to 308/230v trans-
former to provide power when the
Energy$Recycler is used with a 460V roof-
top unit.
20. EconoMi$er with Power Exhaust:
Package shall provide control of internal build-
ing pressure. The two-stage system shall
exhaust up to 100% of return air (vertical only).
21. Two-Stage Power Exhaust Accessory for
EconoMi$er:
Power exhaust shall be used in conjunction with
EconoMi$er to provide system exhaust of up to
100% of return air. The power exhaust is a
field-installed accessory (vertical and horizontal
applications).
The individual fans are energized through the
end switches located in the actuator, which will
open as the outdoor-air damper opens. These
end switches are factory set for 30 and 70% of
outdoor-air, and can be set to meet specific job
requirements.
22. Outdoor Air Enthalpy Sensor:
The outdoor air enthalpy sensor shall be used
with the EconoMi$er device to provide single
enthalpy control. When used in conjunction
with a return air enthalpy sensor, the
EconoMi$er device will provide differential
enthalpy control. The sensor allows the
EconoMi$er controller to determine if outside
air is suitable for free cooling.
23. Return Air Enthalpy Sensor:
The return air enthalpy sensor shall be used
with the EconoMi$er device. When used in con-
junction with an outdoor air enthalpy sensor,
the EconoMi$er device will provide differential
enthalpy control.
24. Return Air Temperature Sensor:
The return air temperature sensor shall be used
with the EconoMi$er device. When used in con-
junction with the standard outdoor air tempera-
ture sensor, the EconoMi$er device will provide
differential temperature control.
25. Indoor Air Quality (CO
2
) Sensor:
a. Shall have the ability to provide demand ven-
tilation indoor air quality (IAQ) control
through the economizer with an IAQ sensor.
b. The IAQ sensor shall be available in duct
mount, wall mount, and wall mount with
LED display. The set point shall have adjust-
ment capability.
26. Power Exhaust Auxiliary Transformer:
Field-installed 460v or 575v to 230v trans-
former to provide power to the 230v power
exhaust when attached to a 460v or 575v roof-
top unit.
27. Ultra-Violet Germicidal Lamps:
Ultra-violet germicidal lamps are designed to
Eliminate odor causing mold and fungus that
may develop in the wet area of the evaporator
section of the unit. The high output, low tem-
perature germicidal lamps are field installed in
the evaporator section of the unit, aimed at the
evaporator coil and condensate pan. The short
wave-length ultra-violet light inhibits and kills
mold, fungus and microbial growth. The lamps
have an output rating at 45 F in 400 fpm air-
flow of 120 microwatts/cm
2
at 1 meter.
28. Hinged Panel Option:
Hinged panel option provide hinged access
panels for the filter, compressor, evaporator
fan, and control box areas. Filter hinged panels
permit tool-less entry for changing filters. Each
hinged panel is permanently attached to the
rooftop unit.
29. Emergency Heat Control Package:
When mechanical heating is locked out, auxil-
iary heat shall be activated when necessary.
50TFQ004-01250HJQ004-012