York DH 036 Manual De Usuario

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254597-YTG-B-0507
Unitary Products Group
29
STANDARD LIMITED WARRANTIES
Compressor 5 Years
Heat Exchanger 10 Years
Electric Heat Element 5 Years
Other Parts 1 Year
OPTIONAL OUTDOOR AIR (Shall be made available by 
either/or):
ELECTRONIC ENTHALPY AUTOMATIC ECONO-
MIZER
- Outdoor and return air dampers that are inter-
locked and positioned by a fully-modulating, spring 
return damper actuator. The maximum leakage rate for 
the outdoor air intake dampers shall not exceed 2% 
when dampers are fully closed and operating against a 
pressure differential of 0.5 IWG. A unit-mounted potenti-
ometer shall be provided to adjust the outdoor and return 
air damper assembly to take in CFM of outdoor air to 
meet the minimum ventilation requirement of the condi-
tioned space during normal operation. During econo-
mizer operation, a mixed-air temperature control shall 
modulate the outdoor and return air damper assembly to 
prevent the supply air temperature from dropping below 
55°F. Changeover from compressor to economizer oper-
ation shall be provided by an integral electronic enthalpy 
control that feeds input into the basic module. The out-
door intake opening shall be covered with a rain hood 
that matches the exterior of the unit. Water eliminator/fil-
ters shall be provided. Simultaneous economizer/com-
pressor operation is also possible. Dampers shall fully 
close on power loss.
MOTORIZED OUTDOOR AIR DAMPERS - Outdoor air 
dampers are positioned by a 2-position, spring-return 
damper actuator. The maximum leakage rate for the out-
door air intake dampers shall not exceed 2% when 
dampers are fully closed and operating against a pres-
sure differential of 0.5 IWG. A unit-mounted potentiome-
ter shall be provided to adjust the outdoor damper 
assembly to take in the design CFM of outdoor air to 
meet the ventilation requirements of the conditioned 
space during normal operation. Whenever the indoor fan 
motor is energized, the dampers open up to one of two 
pre-selected positions - regardless of the outdoor air 
enthalpy. Dampers return to the fully closed position 
when the indoor fan motor is de-energized. Dampers 
shall fully close on power loss.
OTHER PRE-ENGINEERED ACCESSORIES AVAILABLE
ROOF CURB - 14"and 8”  high, full perimeter curb with 
wood nailer (shipped knocked-down).
BAROMETRIC RELIEF DAMPER - Contains a rain 
hood, air inlet screen, exhaust damper and mounting 
hardware. Used to relieve internal air pressure through 
the unit.
PROPANE CONVERSION KIT - Contains new orifices 
and gas valve parts to convert from natural to L.P. gas. 
One per unit required.
HIGH ALTITUDE - NATURAL GAS - Contains orifices 
required for applications between 2000 and 6000 feet 
altitude.
HIGH ALTITUDE - PROPANE GAS - Contains orifices 
required for applications between 2000 and 6000 feet 
altitude. Must be used with propane conversion kit.
LOW NOX - Required to reduce the emission of nitrogen 
oxides below 40 nanograms per joule.
GAS PIPING - Contains 1/2” pipe nipples, fittings and 
gas cock (including panel assess gaskets) required for 
bottom gas supply connection with external shut off.
POWER EXHAUST OPTION - To work in conjunction 
with economizers.
ELECTRIC HEATERS
ECONOMIZER/MOTORIZED DAMPER RAIN HOOD -
Contains all hood panels and the hardware for assem-
bling.
MANUAL OUTDOOR AIR DAMPER
COIL GUARD KIT - Guard for cooling coil.
HAIL GUARD
FLUE EXHAUST EXTENSION
OTHER FACTORY INSTALLED OPTIONS
POWER EXHAUST OPTION - To work in conjunction 
with economizers.
STAINLESS STEEL HEAT EXCHANGER
STAINLESS STEEL DRAIN PAN
BOTTOM DRAIN CONNECTION