Unit Component Location - York DNH018 Technical Manual

036-21233-002-A-0903
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
FIGURE 1 - UNIT COMPONENT LOCATION
Unitary Products Group


 
  
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 0 F. Standard
unit operation 45 F.
TRANSFORMER KIT - Kit provides necessary hardware to pro-
vide single phase models from factory furnished 40 VA trans-
former capability to 75 VA transformer capability. (Required on
installations with economizer or motorized damper.)

  

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