York D2EB030 Technical Manual Download

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360101-XTG-B-0508

Johnson Controls Unitary Products

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.

SINGLE ENTHALPY SENSOR -

Sensor replaces dry bulb

sensor standard in economizer kit. Provides improved
economizer 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 temperature
dry bulb and humidity in conjunction with the single enthalpy to
determine the most economical mix.

Single Enthalpy sensor

also required.

UPGRADE SAFETY PACKAGE -

Contains screw-in type High

pressure, Low Pressure/Loss of Charge switch, freeze protection
switch and lockout relay. Switches are placed onto existing
schrader ports located in the unit by furnished adapters. When
abnormal conditions are sensed through the pressure switches,
the unit will lock out preventing any further operation until reset or
problem is corrected. Package agency approved.

HAIL GUARD KIT -

Kit contains protected grilles made of

expanded aluminum grilles with full perimeter inch 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 standard
size filters are shipped in one kit. (1" filter is supplied) This kit is
available for single phase horizontal or vertical duct application
only. Standard in all 3 Phase models.

MOTORIZED FRESH AIR DAMPER -

Designed for duct

mounted side return and unit mounted down shot return
applications. Damper capable of providing 0% thru 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 15” square to 14”
round.

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 provides
seal strip to assure a water tight seal. Eight and 14 inch high
roof curbs are available.

MANUAL OUTDOOR DAMPER -

Provides 0% thru 50%

outdoor air capability (field adjustable). Designed for duct
mounted side return and unit mounted down shot 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

provide single phase models from factory furnished 40 VA
transformer capability to 75 VA transformer capability.

ELECTRIC HEATERS -

Each heater package provides easy

installation of electric heat strips. Slide in design with plug in
harness and agency approved. Heaters are available from 5.0
KW sizes and are designed for single point connection.

FIGURE 1 - UNIT CUTAWAY

DIRECT DRIVE

CONDENSER

FAN MOTOR

HIGHLY EFFICIENT

ENHANCED COPPER
TUBE/ALUMINUM FIN

CONDENSER COIL

LOW VOLTAGE

TERMINAL BLOCK

HIGH EFFICIENCY

COMPRESSOR

RIGIDLY