036-21548-001-D-0405
Unitary Products Group 5
EASY SERVICE ACCESS - A large, single panel covers the
electrical and gas controls makes servicing easy. The blower
compartment has an additional large panel with a built-in
handle tab. Removing this panel will allow the blower assem-
bly to slide-out for easy removal for maintenance and ease of
trouble shooting.
REPLACEMENT PARTS - The installer requires no special
training to replace any of the components of these units and
does not need to maintain an inventory of unique parts.
SYSTEM INTEGRATION - Each unit has the internal ability
to integrate an electronic air cleaner or humidifier to work in
conjunction with the base unit.
FIELD-INSTALLED ACCESSORIES
LOW NOx KIT - Kit includes all the necessary hardware and
instructions to field convert units to reduce emissions to less
than 40 nanogram per Joule. California requirement on single
phase models only.
PROPANE CONVERSION KIT - Kit includes burner orifices,
gas valve conversion and installation instructions necessary
to field convert unit from natural gas to propane.
HIGH ALTITUDE CONVERSION KIT (Natural Gas/Propane)
- Kit includes all necessary labels and instructions to field
alter units with natural gas/propane for installations above
2000 feet. Burner orifices must be obtained from Source 1
Parts. Propane Conversion Kit must be obtained separately.
ECONOMIZER DOWN DISCHARGE / SUPPLY KIT - Modu-
lating integrated economizer provides simultaneous opera-
tion between the mechanical cooling and economizer
operation. Independent blade design insures proper control
and less than 1% leak rate. Includes hood and mesh bird
screen filter integrated into the hood, dry bulb sensor and
relief damper. Separate field accessories of single enthalpy
and dual enthalpy are also available. A built-in barometric
relief of 25% is provided.
SINGLE ENTHALPY SENSOR - Sensor replaces dry bulb
sensor standard in economizer kit. Provides improved econo-
mizer operation by sensing the dry bulb temperature from
outdoors plus the enthalpy content of the outdoor air.
DUAL ENTHALPY SENSOR - Additional sensor to single
enthalpy sensor. Sensor senses both the return air tempera-
ture dry bulb and humidity in conjunction with the single
enthalpy to determine the most economical mix. Single
Enthalpy sensor also required.
HAIL GUARD KIT - Kit contains protective grilles made of
expanded aluminum with full perimeter frame. Sloped hoods
are also included to assure maximum protection.
ANTI SHORT CYCLE TIMER - Automatically prevents the
compressor from restarting for 5 minutes after cycled off.Not
required if Thermostat 2ET07700224 and 2ET04700224 are
used.
FILTER / FRAME KIT (Single Phase only) - Kit contains the
necessary hardware to field install return air filters into the
base unit. Pre-cut filter racks and appropriate cleanable stan-
dard size filters are shipped in one kit. The filter rack is suit-
able for either 1" or 2" filters. (1" filter is supplied) This kit is
available for single phase horizontal or vertical duct applica-
tion only. Standard in all 3 Phase models.
MOTORIZED FRESH AIR DAMPER - Designed for duct
mounted side supply/return and unit mounted down supply/
return applications. Damper capable of providing 0% through
50% of outdoor air (field supplied). Closes on power loss,
includes hood and screen assembly.
RECTANGLE TO ROUND ADAPTERS - Kit includes one
supply and one return air rectangle to round duct adapter.
Adapters are preformed and designed to fit over current duct
openings on the base unit. Transition is from side square duct
opening to 14" round duct opening.
ROOF CURBS - NRCA approved curbs provide proper fit to
base unit for rooftop installations. Curbs are designed to be
assembled through hinge pins in each corner. Kit also pro-
vides seal strip to assure a water tight seal. 8 and 14 inch
high roof curbs are available.
MANUAL OUTDOOR DAMPER - Provides 0% through 50%
outdoor air capability (field adjustable). Designed for duct
mounted side supply/return applications. Includes hood and
screen assembly.
WALL THERMOSTAT - The units are designed to operate
with 24-volt electronic and electro-mechanical thermostats.
All units can operate with single stage heat / single stage cool
thermostats - with or without the economizer.
LOW AMBIENT KIT - Kit provides necessary hardware to
convert unit to operate in cooling cycle down to 0º F. Stan-
dard unit operation 45º F.
TRANSFORMER KIT - Kit provides necessary hardware to
provide single phase models from factory furnished 40 VA
transformer capability to 75 VA transformer capability.
(Required on installations with economizer or motorized
damper.)
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