Bryant 549C manual GUIDE SPECIFICATIONS — 548F036-120cont, Indoor Air Quality CO2 Sensor

GUIDE SPECIFICATIONS — 548F036-120 (cont)

548F

12.Power Exhaust Accessory for EconoMi$erIV or EconoMi$er2:

Power exhaust shall be used in conjunction with EconoMi$erIV or EconoMi$er2 to provide system exhaust of up to 100% of return air (vertical only). The power exhaust is a field-installed accessory (separate vertical and horizontal design).

NOTE: Horizontal power exhaust is intended to mount in return ductwork.

As the outdoor-air damper opens and closes, both propeller fans are energized and deenergized through the EconoMi$erIV controller. The set point is factory set at 100% of outdoor-air, and is adjustable 0 to 100% to meet specific job requirements. Avail- able in 208/230-1-60 v or 460-3-60 v. An LED light on the controller indicates when the power exhaust is operating.

For the EconoMi$er2, the power exhaust shall be controlled by the third party controls.

13.Outdoor Air Enthalpy Sensor (EconoMi$erIV or EconoMi$er2):

The outdoor air enthalpy sensor shall be used with the EconoMi$erIV or EconoMi$er2 device to provide single enthalpy control. When used in conjunction with a return air enthalpy sensor, the unit will provide differential enthalpy control. The sensor allows the unit to determine if outside air is suitable for free cooling.

14.Return Air Enthalpy Sensor (EconoMi$erIV or EconoMi$er2):

The return air enthalpy sensor shall be used with the EconoMi$erIV or EconoMi$er2 device. When used in conjunction with an outdoor air enthalpy sensor, the EconoMi$erIV or EconoMi$er2 device will pro- vide differential enthalpy control.

15.Return Air Temperature Sensor (EconoMi$erIV or EconoMi$er2):

The return air temperature sensor shall be used with the EconoMi$erIV or EconoMi$er2 device. When used in conjunction with the standard outdoor air temperature sensor, the EconoMi$erIV or EconoMi$er2 device will provide differential temper- ature control.

16.Outdoor Air/Return Air Temperature Sensor (adjust- able) (EconoMi$er2):

Optional sensor uses the third party control to control outdoor air damper and compressor operation.

17.Indoor Air Quality (CO2) Sensor:

a.Sensor shall have the ability to provide demand ventilation indoor air quality (IAQ) control through the EconoMi$er2 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 adjustment capability.

c.Requires EconoMi$er2 third party control options.

18.Outdoor Coil Hail Guard Assembly:

Hail guard shall protect against damage from hail and flying debris.

19.Indoor Air Quality (CO2) Room Sensor (EconoMi$erIV):

Sensor shall have the ability to provide demand ven- tilation control through the EconoMi$erIV. The IAQ

sensor shall be wall mounted with an LED display in parts per million. The set point shall have adjustment capability.

20. Return Air CO2 Sensor (EconoMi$erIV):

Sensor shall have the ability to provide demand ven- tilation control through the EconoMi$erIV. The IAQ sensor shall be duct mounted. The set point shall have adjustment capability.

21. Alternate Motors and/or Drives (036-060,090,120):

Alternate motors and drives shall be factory-installed to provide additional performance range.

22. High-Static Motor(s) and Drive(s):

High-static motor(s) and drive(s) shall be factory- installed to provide an additional performance range.

23. Outdoor Coil Grille:

The grille protects the outdoor coil from damage by large objects without increasing unit clearances.

24. Compressor Cycle Delay:

Unit shall be prevented from restarting for a mini- mum of 5 min. after shutdown.

25. Louvered Hail Guard:

The hail guard shall protect the entire outdoor coil surface from direct or indirect (from adjacent sur- faces) hail damage. Hail guard shall have a pressure drop of 2%.

26. Fan/Filter Status Switch:

Switch shall provide status of evaporator fan (ON/ OFF) or filter (CLEAN/DIRTY). Status shall be dis- played over communication bus when used with direct digital controls or with an indicator light at the thermostat.

27. Unit-Mounted Disconnect Switch:

Switch shall be factory-installed. Internally mounted, NEC and UL approved non-fused switch provides unit power shutoff. Switch shall be accessible from outside the unit.

28. Convenience Outlet:

Outlet shall be factory-installed and internally mounted with easily accessible 115-v female recep- tacle. Outlet shall include 15 amp GFI receptacle with independent fuse protection. Voltage required to operate convenience outlet shall be provided by a factory-installed step-down transformer. Outlet shall be accessible from outside the unit.

NOTE: Convenience outlet shall be designed for short duration electrical maintenance loads and is not designed for long term electrical supply.

29. Emergency Heat Package:

When mechanical heating is locked out, auxiliary heat shall be activated when necessary.

30. Ultra-Violet Germicidal Lamps:

Ultra-violet germicidal lamps are designed to elimi- nate odor causing mold and fungus that may develop in the wet area of the indoor section of the unit. The high output, low temperature germicidal lamps are field installed in the indoor section of the unit, aimed at the indoor coil and condensate pan. The short wavelength ultra-violet light inhibits and kills mold, fungus and microbial growth. The lamps

have	an output rating at 45 F in 400 fpm airflow
of	120 microwatts/cm2 at 1 meter.

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