York DH 036 User Manual

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254597-YTG-B-0507
Unitary Products Group
7
FIELD-INSTALLED ACCESSORIES
SINGLE INPUT ELECTRONIC ENTHALPY ECONO-
MIZERS
 - Includes a slide-in / plug-in damper assembly 
with fully modulating spring-return motor actuator capa-
ble of introducing up to 100% outdoor air with nominal 
1% leakage type dampers.
The enthalpy system contains one sensor that monitors 
the outdoor air and determines when the air is cool 
enough and dry enough to provide free cooling.
The rainhood is painted to match the basic unit and must 
be field-assembled before installing.
MOTORIZED OUTDOOR AIR INTAKE DAMPER - 
Includes a slide-in / plug-in damper assembly with a 2-
position, spring return motor actuator which opens to 
some pre-set position whenever the supply air blower is 
operating and will drive fully closed when the blower unit 
shuts down.
The rain hood is painted to match the basic unit and 
must be field assembled before installing.
ELECTRIC HEATERS wired for single point power sup-
ply. These nickel chromium heater elements are pro-
vided with limit and automatic reset capability to prevent 
operation at excessive temperatures.
ROOF CURBS - Eight and fourteen-inch high roof curbs 
provide a water-tight seal between the unit and the fin-
ished roof. These full perimeter curbs meet the require-
ments of the National Roofing Contractors Association 
(NRCA) and are shipped knocked-down for field assem-
bly.
Roof curbs are designed to fit inside the base rails of the 
unit and include both a wood nailing strip and duct 
hanger supports.
HIGH ALTITUDE NATURAL GAS - Burner orifices and 
pilot orifices are provided for proper furnace operation at 
altitudes up to 6,000 feet.
PROPANE - Burner orifices, pilot orifices and gas valve 
parts are provided to convert a natural gas furnace to 
propane.
HIGH ALTITUDE PROPANE - Burner orifices and pilot 
orifices are provided for proper furnace operation at alti-
tudes up to 6,000 feet. This accessory supplements the 
basic propane conversion kit.
LOW NOX KIT - Required to reduce the emission of 
nitrogen oxides below 40 nano grams per joule.
POWER EXHAUST - Our single input economizer 
options are available with power exhaust. Whenever the 
outdoor air intake dampers are opened for free cooling, 
the exhaust fan will be energized to prevent the condi-
tioned space from being over-pressurized during econo-
mizer operation.
The power exhaust option can only be used on bot-
tom duct configurations.
BAROMETRIC RELIEF DAMPER - This damper acces-
sory can be used to relieve internal building air pressure 
on units with an economizer without power exhaust. This 
accessory includes a rain hood, a bird screen and a fully 
assembled damper. With bottom duct connections, the 
damper should be mounted over the opening in the 
return air panel. With horizontal ductwork, the accessory 
should be mounted on the return air duct.
ENTHALPY ACCESSORY CONTROL KIT - This kit 
contains the required components to convert a single 
enthalpy economizer to dual enthalpy.
BURGLAR BARS - Mount in the supply and return 
openings to prevent entry into the duct work.
FLUE EXHAUST EXTENSION KIT - In locations with 
wind or weather conditions which may interfere with 
proper exhausting of furnace combustion products, this 
kit can be installed to prevent the flue exhaust from 
entering nearby fresh air intakes.
CO
2
 SENSOR - Senses CO
2
 levels and automatically 
overrides the economizer when levels rise above the 
present limits.
COIL GUARD - Customers can purchase a coil guard kit 
to protect the condenser coil from damage. This is not a 
hail guard kit.
HAIL GUARD - Hail Guard kit is available to prevent unit 
from hail damage. This is a sloped hood that fits above 
the coil.
GAS PIPING KIT - This kit supplies all necessary fittings 
and shut off valve.