York D2EE 036 User Manual

kept clean or replaced with same size and type. Dirty filters will

reduce the capacity of the unit and will result in frosted coils or

safety shutdown. Minimum filter area and required sizes are

shown in Table 2.

CONDENSATE DRAIN

Plumbing must conform to local codes. Use a sealing

compound on male pipe threads. Install a condensate drain

line from the 3/4" PVC female connection on the unit to spill into

an open drain.
NOTE: The condensate drain line MUST be trapped to pro-

vide proper drainage. See Figure 2.

SERVICE ACCESS

Access to all serviceable components is provided by the

following removable panels:

•

Compressor compartment

•

Heater compartment

•

Blower compartment

•

Main control box

•

Filter compartment

•

Motor Access (on units w/belt-drive option)

Refer to Figure 5 for location of these access panels.

CAUTION: Make sure that all screws are replaced on the unit

to maintain an air-tight seal.

THERMOSTAT

The room thermostat should be located on an inside wall

approximately 56" above the floor where it will not be subject to

drafts, sun exposure, or heat from electrical fixtures or

appliances. Follow manufacturer's instructions enclosed with

thermostat for general installation procedure. Color coded

insulated wires (#18 AWG) should be used to connect

thermostat to unit. See Figure 4 for wiring details.

NOTE: If the unit has an economizer, remove jumper J1 from

terminals 8 and 10 on the relay board to prevent simul-

taneous operation of the compressor and the econo-

mizer. If you want to control the economizer on a

second stage of cooling, use a thermostat with two

stages of cooling.

POWER AND CONTROL WIRING

Field wiring to the unit must conform to provisions of the National

Electrical Code (NEC) ANSI/NFPA70 (in USA), current Canadian

Electric Code (CEC) C22.1 (in Canada) and/or local ordinances.

The unit must be electrically grounded in accordance with the

NEC and CEC (as specified above) and/or local codes. Voltage

tolerances which must be maintained at the compressor

terminals during starting and running conditions are indicated on

the unit Rating Plate and Table 1.
The wiring harness furnished with this unit is an integral part of

a UL design certified unit. Field alteration to comply with

electrical codes should not be required.
A disconnect switch should be field provided for the unit. The

switch must be separate from all other circuits. Refer to Figure 5

for installation location. If any of the wire supplied with the unit

must be replaced, replacement wire must be of the type shown

on the wiring diagram.
Electrical lines must be sized properly to carry the load. USE

COPPER CONDUCTORS ONLY. Each unit must be wired with

a separate branch circuit fed directly from the meter panel and

properly protected.

CAUTION: When connecting electrical power and control wir-

ing to the unit, waterproof type connectors MUST

BE USED so that water or moisture cannot be

drawn into the unit during normal operation. The

above waterproofing conditions will also apply

when installing a field-supplied disconnect switch.

Refer to Figure 4 for typical field wiring and to the appropriate

unit wiring diagram for control circuit and power wiring

information.

BLOWER SPEED SELECTION

Three blower motor speeds are available on the direct-drive

units. The speed selection for the direct-drive units is

determined by the CFM and ESP requirements of the

applications. All units with belt-drive option have an adjustable

motor pulley to achieve the above conditions.
All direct-drive units with 208/230 voltage are shipped with the

wire labeled #116 connected to the “HIGH” speed tap on the

blower motor. If a lower blower motor speed is desired, this wire

should be moved to the “MED” or “LOW” speed tap on the

motor for the speed desired.

035-12046-003-A-0204

Unitary Products Group

FIG. 2 - RECOMMENDED DRAIN PIPING

WEIGHTS (LBS)

Basic Unit

3 Ton

545

4 Ton

585

5 Ton

610

ACCESSORIES / OPTIONS

Electric Heat

(Nominal KW)

5 - 7 KW

10 - 15 KW

20 - 30 KW

Economizer

Motorized Outdoor

Air Damper

Relief/Fixed

Air Damper

Roof Mounting Curb

Belt-Drive Blower

MODELS

DEE

036

048

060

EVAPORATOR

BLOWER

CENTRIFUGAL BLOWER (Dia. x Wd. in.)

FAN MOTOR HP (Direct-Drive)

FAN MOTOR HP (Belt-Drive)

12 x 10

1.5

12 x 10

1.5

12 x 10

1.5

EVAPORATOR

COIL

ROWS DEEP

FINS PER INCH

FACE AREA (Sq. Ft.)

3.6

4.3

5.1

CONDENSER

FAN

PROPELLER DIA. (in.)

FAN MOTOR HP

NOM. CFM TOTAL

4,500

4,200

4,500

CONDENSER

COIL

ROWS DEEP

FINS PER INCH

FACE AREA (Sq. Ft.)

17.1

AIR

FILTERS

(SEE NOTE)

QUANTITY PER UNIT (15" x 20" x 1")

QUANTITY PER UNIT (14" X 25" X 1")

TOTAL FACE AREA (sq. ft.)

6.6

CHARGE

REFRIGERANT 22 (lbs./oz.)

9/12

9/8

COMPRESSOR QUANTITY PER UNIT (HERMETIC TYPE)

1/RECPT

1/RECPT 1/SCROLL

NOTE: Filter racks are adapted for 1" or 2" thick filters.

TABLE 2 - PHYSICAL DATA