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10
OPTIONS AND ACCESSORIES (cont)
Roof Curbs (Horizontal and Vertical) permit installation and
securing of ductwork to curb prior to mounting unit on the curb.
Both 14-in. and 24-in. roof curbs are available as field-installed
accessories.
EconoMi$erIV is available as a factory-installed option in
vertical supply/return configuration only for unit sizes 036-120.
Vertical or horizontal configuration is available for unit sizes 150
and 180. (EconoMi$erIV is available as a field-installed acces-
sory for horizontal and/or vertical supply return configurations.)
The EconoMi$erIV is provided with an industry standard,
standalone, solid-state controller that is easy to configure and
troubleshoot. The EconoMi$erIV is compatible with non-DDC
applications. EconoMi$erIV is equipped with a barometric relief
damper capable of relieving up to 100% return air. Dry bulb
outdoor-air temperature sensor is provided as standard. The
return air sensor, indoor enthalpy sensor, and outdoor enthalpy
sensor are provided as field-installed accessories to provide
enthalpy control, differential enthalpy control, and differential
dry bulb temperature control.
EconoMi$er2 is available as a factory-installed option in verti-
cal supply/return configuration only. (EconoMi$er2 is available
as a field-installed accessory for horizontal and/or vertical
supply return configurations.) The EconoMi$er2 is provided
without a controller for use with field-installed third-party con-
trols. EconoMi$er2 is equipped with a barometric relief damper
capable of relieving up to 100% return air. Dry bulb outdoor-air
temperature sensor is provided as standard. The enthalpy,
differential temperature (adjustable), and differential enthalpy
control are provided as field-installed accessories. The
EconoMi$er2 is capable of control from a 4 to 20 mA signal
through optional 4 to 20 mA design without microprocessor
control (required for third party control interface).
Manual Outdoor-Air Damper accessory can be preset to
admit up to 50% outdoor air for year round ventilation.
Two-Position Damper package is available as an accessory.
Both 25% or 100% outdoor air dampers are available.
Head Pressure Control (Motormaster) accessory package
maintains condensing temperature between 90 F and 110 F at
outdoor ambient temperatures down to –20 F by condenser-fan
speed modulation or condenser-fan cycling and wind baffles.
Electric Resistance Heaters are UL listed and available to
match heating requirements. Single point kits available for each
heater when required. Heaters are field-installed accessories.
Unit-Mounted, Non-Fused Disconnect Switch provides unit
power shutoff. The switch is accessible from outside the unit
and provides power off lockout capability and is available as
factory-installed option.
Convenience Outlet is factory-installed and internally mounted
with easily accessible 115-v female receptacle.
Compressor Cycle Delay (Time Guard II) prevents unit from
restarting for minimum of 5 minutes after shutdown.
Thru-the-Bottom Utility Connectors permit electrical connec-
tions to be brought to the unit through the basepan. Connectors
are a field-installed accessory.
Fan/Filter Status Switch accessory provides status of indoor
(evaporator) fan (ON/ OFF) or filter (CLEAN/DIRTY).
Power Exhaust accessory will 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).
Ultra-Violet Germicidal Lamps eliminate odor causing mold
and fungus that may develop in the wet area of the evaporator
section of the unit. The high output, low temperature germicidal
lamps are field installed in the evaporator section of the unit,
aimed at the evaporator coil and condensate pan.
Hinged Panel Option provides hinged access panels for the fil-
ter, 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 and is
a factory-installed option.
Emergency Heat Control Package accessory activates auxil-
iary heat when necessary if mechanical heating is locked out.