Bryant Preferred Series, Руководство пользователя, Страница: 65 / 68

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b. Non-powered convenience outlet.
1) Outlet shall be powered from a separate
115-120v power source.
2) A transformer shall not be included.
3) Outlet shall be factory-installed and inter-
nally mounted with easily accessible 115-v
female receptacle.
4) Outlet shall include 15 amp GFI receptacles.
5) Outlet shall be accessible from outside the
unit.
6) Outlet shall include a field-installed “Wet
in Use” cover.
14. Flue Discharge Deflector:
a. Flue discharge deflector shall direct unit
exhaust vertically instead of horizontally.
b. Deflector shall be defined as a “natural draft”
device by the National Fuel and Gas (NFG) code.
15. Fan/Filter Status Switch:
a. Switch shall provide status of indoor evaporator
fan (ON/OFF) or filter (CLEAN/DIRTY).
b. Status shall be displayed either over communi-
cation bus (when used with direct digital con-
trols) or with an indicator light at the
thermostat.
16. Centrifugal Propeller Power Exhaust:
a. Power exhaust shall be used in conjunction with
an integrated economizer.
b. Independent modules for vertical or horizontal
return configurations shall be available.
c. Horizontal power exhaust is shall be mounted in
return ductwork.
d. Power exhaust shall be controlled by economizer
controller operation. Exhaust fans shall be ener-
gized when dampers open past the 0-100% adjust-
able setpoint on the economizer control.
17. Roof Curbs (Vertical):
a. Full perimeter roof curb with exhaust capability
providing separate air streams for energy recov-
ery from the exhaust air without supply air con-
tamination.
b. Formed galvanized steel with wood nailer strip
and shall be capable of supporting entire unit
weight.
c. Permits installation and securing of ductwork to
curb prior to mounting unit on the curb.
18. Adapter Curb (Vertical):
a. Full perimeter – fully assembled and welded
roof curb with exhaust capability providing sep-
arate air streams for energy recovery from the
exhaust air without supply air contamination.
b. Formed galvanized steel with wood nailer strip
and shall be capable of supporting entire unit
weight.
c. Permits installation of new 581J 17-28 models
to past Bryant design curb models: DP, DR, HJ,
TM, and TJ. Check with Bryant sales expert for
further details and information.
19. High Altitude Gas Conversion Kit:
Package shall contain all the necessary hardware
and instructions to convert a standard natural gas
unit to operate from 3,000 to 10,000 ft (914 to
3048 m) elevation and 10,001 to 14,000 ft (3049 to
4267 m) elevation.
20. Outdoor Air Enthalpy Sensor:
The outdoor air enthalpy sensor shall be used to
provide single enthalpy control. When used in con-
junction with a return air enthalpy sensor, the unit
will provide differential enthalpy control. The sen-
sor allows the unit to determine if outside air is
suitable for free cooling.
21. Return Air Enthalpy Sensor:
The return air enthalpy sensor shall be used in con-
junction with an outdoor air enthalpy sensor to pro-
vide differential enthalpy control.
22. Indoor Air Quality (CO
2
) Sensor:
a. Shall be able to provide demand ventilation
indoor air quality (IAQ) control.
b. The IAQ sensor shall be available in duct
mount, wall mount, or wall mount with LED
display. The setpoint shall have adjustment
capability.
23. Smoke Detectors:
a. Shall be a Four-Wire Controller and Detector.
b. Shall be environmental compensated with dif-
ferential sensing for reliable, stable, and drift-
free sensitivity.
c. Shall use magnet-activated test/reset sensor
switches.
d. Shall have tool-less connection terminal access.
e. Shall have a recessed momentary switch for
testing and resetting the detector.
f. Controller shall include:
1) One set of normally open alarm initiation
contacts for connection to an initiating
device circuit on a fire alarm control panel.
2) Two Form-C auxiliary alarm relays for
interface with rooftop unit or other equip-
ment.
3) One Form-C supervision (trouble) relay to
control the operation of the Trouble LED
on a remote test/reset station.
4) Capable of direct connection to two indi-
vidual detector modules.
5) Can be wired to up to 14 other duct smoke
detectors for multiple fan shutdown applica-
tions.
24. Horn/Strobe Annunciator
a. Provides an audible/visual signaling device for
use with factory-installed option or field-
installed accessory smoke detectors.
1) Requires installation of a field-supplied
24-v transformer suitable for 4.2 VA (AC)
or 3.0 VA (DC) per horn/strobe accessory.