YORK Sunline 2000™ units are convertible single package
air conditioners. The units were designed for light commercial
and commercial applications. They can easily be installed on
a roof curb, slab, roof jack or frame.
All units include:
SINGLE PACKAGE GAS/ELECTRIC UNITS
AND SINGLE PACKAGE
AIR CONDITIONERS
DM072
6 NOMINAL TONS
9.0 EER
•Powder Paint finish that meets ASTM-B-117 1000 hour
salt spray standards
•Permanently lubricated motors
•Direct Drive or Belt Drive Blower with high static drive
option
•Bottom or side air discharge configuration capability
(field convertible)
•Manufactured under the quality standards of ISO9001
®
•Simplicity
•Copper tube/aluminum fin coils
•Easy access to all components
•Rigging holes in base rails for lifting
•Fork lift slots on three sides
•Single point power connection
•Complete factory package - tested, charged and wired
•CSA agency listing on all units
WARRANTY
•Factory Limited Parts Warranty
Control Board
•One-year parts warranty
•A Five-year parts warranty on the compressor and
electric heat elements.
•Ten-year parts warranty on the gas-fired heat
exchangers.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
A = Direct Drive
B = Direct Drive/Single Input Economizer
D = Direct Drive/Motorized Damper
N = Belt Drive
P = Belt Drive/Single Input Economizer
R = Belt Drive/Motorized Damper
T = Belt Drive High Static
U = Belt Drive High Static/Single Input Economizer
V = Belt Drive High Static/Motorized Damper
All models are available with a wide variety of factorymounted options such as stainless steel heat exchangers,
electric heaters, phase monitor, convenience outlet, dirty filter
switch, disconnect switch, smoke detectors, and coil guard
to make them suitable for almost every application.
All units are self-contained and assembled on full perimeter
base rails with forklift holes on three sides and holes for overhead rigging. Every unit is completely piped, wired, charged
and tested at the factory to simplify the field installation and to
provide years of dependable operation.
All models (including those with an economizer) are suitable for
either bottom or horizontal duct connections. For bottom duct,
remove the sheet metal panels from the supply and return air
openings through the base of the unit. For horizontal duct,
remove the supply and return air panels on the rear of the unit.
All models are available with these “factory mounted” outdoor
air damper options:
•Single enthalpy economizer
•Motorized outdoor air damper
Supply air blowers are equipped with either a direct drive or a
belt drive that can be adjusted to meet the exact requirements of the job.
All compressors are equipped with internal pressure relief.
Every refrigerant circuit includes a liquid line filter-drier, a high
pressure switch and a suction line with a freezestat and low
pressure/loss of charge switch to protect all system components.
®
•Simplicity
standardized a number of features previously available
only as options or by utilizing additional controls.
•Low Ambient - An integrated low-ambient control
•Anti-Short Cycle Protection - To aid compressor
•Fan Delays - Fan on and fan off delays are fully pro-
•Safety Monitoring - The control board monitors the
Controls - Simplicity® control boards have
allows all units to operate in the cooling mode down
to 0ºF outdoor ambient without additional assistance. Optionally , the control board can be programmed to lockout the compressors when the
outdoor air temperature is low or when free cooling
is available.
life, an anti-short cycle delay is incorporated into the
standard controls. Compressor reliability is further
ensured by programmable minimum run times. For
testing, the anti short cycle delay can be temporarily
overridden with the push of a button.
grammable and are independent of one another. All
units are programmed with default values based
upon their configuration of cooling and heat.
high and low-pressure switches, the freezestats, the
gas valve, if applicable, and the temperature limit
switch on gas heat units. The unit control board will
alarm on ignition failures, compressor lockouts and
repeated limit switch trips.
•Nuisance Trip Protection- To prevent nuisance
trouble calls, the control board uses a “three strikes,
you’re out” philosophy. The high and low-pressure
switches and the freezestats must trip three times
within two hours before the unit control board will
lock out the compressor.
•On Board Diagnostics - Each alarm will energize a
trouble light on the thermostat, if so equipped, and
flash an alarm code on the control board LED. Each
high and low-pressure switch alarm as well as each
freezestat alarm has its own flash code. The control
board saves the five most recent alarms in memory,
and these alarms can be reviewed at any time.
Alarms and programmed values are retained
through the loss of power.
All units have long lasting powder paint cabinets with 1 000
hour salt spray test approval under ASTM-B117 procedures.
All models are CSA listed.
•Warranty - All models include a one-year limited parts
warranty on the complete unit. Compressors and electric
heater elements carry a five-year warranty. Gas heat
exchangers carry a 10-year parts warranty.
•Gas Heat Operation - All single phase models with gas
heat have minimum annual fuel utilizati on efficiency
(AFUE) of 80%. All three phase models with gas heat
have minimum steady state efficiency of 80%. Each section includes a durable heat exchanger with aluminized
steel or optional stainless steel tubes, a redundant gas
valve, spark ignition, power venting, an ignition module for
100% shut-off and all of the safety controls required to
meet the latest ANSI standards.
The gas supply piping can be routed into the heating
compartment through a hole in the base pan of the unit
or through a knockout in the piping panel on the front of
the unit.
•Electric Heat Operation - All electric heat models are
wired for a single power source and include a bank of
nickel chromium elements mounted at the discharge of
the supply air blower to provide a high velocity and uniform distribution of air across the heating elements.
Every element is fully protected against excessive temperature by thermal limit switches.
The power supply wiring can be routed into the control
box through a threaded pipe connection (field supplied)
in the base pan of the unit or through a knockout in the
wiring panel on the side of the unit.
•BAS Controls - Y ork’ s Sunline™ series uni ts of fer factory
mounted BAS controls such as Simplicity
®
INTELLI-Comfort™, Novar, Honeywell , Johnson, York Commercial
Comfort System (YCCS) and CPC.
4Johnson Controls Unitary Products
Page 5
Economizer
hood
Knockout
for side
power entry
Slide-in
economizer
Smoke
detector
3/4" PVC female
condensate drain
HACR
breaker
GFCI
convenience outlet
Knockout
for side
control entry
Belt drive or
Direct drive
blower
20 Gauge aluminized
steel tubular heat exchanger
Simplicity® Lite™
control board
Electric heat
accessory location
Knockout for side
gas supply entry
Power ventor motor with
post purge cycle
Full perimeter baserails
with forklift slots and
lifting holes
392856-YTG-B-0708
High efficiency
compressor
Copper tube/
aluminum fin
condensing coil
FIGURE 1 -UNIT CUTAWAY GAS/ELECTRIC
HACR
breaker
Knockout
for side
control entry
Economizer
hood
Slide-in
economizer
Smoke
detector
3/4" PVC female
condensate drain
Knockout
for side
power entry
GFCI
convenience outlet
Belt drive or
Direct drive
blower
Simplicity® Lite™
control board
Electric Heat
accessory location
Full perimeter baserails
with forklift slots and
lifting holes
High efficiency
compressor
Copper tube/
aluminum fin
condensing coil
FIGURE 2 -UNIT CUTAWAY ELECTRIC/ELECTRIC
Johnson Controls Unitary Products5
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392856-YTG-B-0708
FACTORY-INSTALLED OPTIONS
•SINGLE INPUT ELECTRONIC ENTHALPY ECONOMIZERS - Includes a slide-in / plug-in damper assembly
with fully modulating spring-return motor actuator capable 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 a 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.
•PHENOLIC COATED EVAPORATOR AND CON-DENSER COILS - Special coating process that utilizes
Technicoat 10-1™ processes. Coating is applied by total
immersion of the complete coil for maximum protection.
•ELECTRIC HEA T ERS - Wired for single point power
supply. These nickel chromium heater elements are provided with limit and automatic reset capability to prevent
operation at excessive temperatures.
•FILTER OPTIONS - Standard units are shipped with 1”
throw-away filters installed. 2” pleated filters are offered
as a factory installed option.
•CONVENIENCE OUTLET - This 110 volt outlet can be
“powered” by the unit with a stepdown transformer or the
unit may be ordered with a “non-powered” convenience
outlet that can be wired in the field.
•DISCONNECT SWITCH - For gas heat units and cooling
units with electric heat, a HACR breaker sized to the unit
is provided. For cooling only units, a switch sized to the
largest electric heat available for the particular unit is
provided. Factory installed option only.
•BAS - Building Automation System Controls
Simplicity
Simplicity
It includes a supply air sensor , a return air sensor, and an
outside air sensor . There are provisions for a field inst alled
dirty filter indicator switch, an air-proving switch, an Outside Air Humidity sensor, a Return Air Humidity sensor , an
Inside IAQ sensor, and an Outside Air IAQ sensor. Construction mode operation, 365-day real time clock with 7
®
INTELLI-Comfort™ CONTROL - The York®
®
INTELLI-Comfort™ control is factory installed.
day programming plus holiday scheduling is built-in. T w o
different modes of demand ventilation are achieved
through the INTELLI-Comfort™using CO
uses an inside CO
sensor to perform Demand Ventila-
2
sensors. It
2
tion. It can also use an Outside CO2 sensor to perform
Differential Demand Ventilation. It uses a Patented Comfort Ventilation algori thm to provide comfortabl e ventilation
air temperature. The patented economizer-loading algorithm will protect the equipment when harsh operating
conditions exist. Humidity in the occupied space or return
duct can be monitored and controlled via humidity sensors
and the on-board connection for hot gas re-heat system.
It uses the INTELLI-Start™ algori thm to maximize energy
savings by recovering the building from the Unoccupied
Setpoints to the Occupied Setpoints just in time for the
Occupied Time Period to begin. The Simplicity
®
INTELLIComfort™ balances space temperature, ventilation ai r
temperature, CO
and humidity for ultimate comfort.
2
•Simplicity® INTELLI-Comfort™ with MOD LINK CONTROL - The York® Simplicity® INTELLI-Comfort™ with
Mod Link control is factory installed. It includes all the
features of the INTELLI-Comfort™ control with an additional control to translate communications from MODBUS to the BACnet MSTP protocol.
•Novar® BAS CONTROL - The Novar® ETC-3 building
automation system controller is factory installed.
Includes supply air sensor, return air sensor, dirty filter
indicator switch, and air proving switch.
•JOHNSON CONTROLS BAS CONTROL - The Johnson
Control YK-UNT-1126 building automation system controller is factory installed. Includes supply air sensor,
return air sensor, dirty filter indicator switch, and air proving switch.
•CPC BAS CONTROL - The Computer Process Controls
Model 810-3060 ARTC Advanced Rooftop building automation system controller is factory installed. Includes
supply air sensor, return air sensor, dirty filter indicator
switch and air proving switch.
•HONEYWELL BAS CONTROL - The Honeywell
W7750C building automation system controller is factory
installed. Includes air supply sensor, return air sensor,
dirty filter indicator switch, and air proving switch.
•YORK COMMERCIAL COMFORT SYSTEM (YCCS) Provides rooftop system integration for YCCS single
zone and change-over bypass systems.
•SMOKE DETECTORS - (supply air & return air) The
smoke detectors stop operation of the unit by interrupting
power to the control board if smoke is detected within the
air compartment.
6Johnson Controls Unitary Products
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392856-YTG-B-0708
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.
Factory installed Smoke Detectors in the return air,
may be subjected to freezing temperatures during
“off” times due to outside air infiltration. These
smoke detectors have an operational limit of 32°F
to 131°F. Smoke detectors installed in areas that
could be outside those limitations will have to be
moved to prevent having false alarms.
•COIL GUARD - Customers can purchase a coil guard kit
to protect the condenser coil from damage. This is not a
hail guard kit.
•STAINLESS STEEL HEAT EXCHANGER - For applica-
tions in corrosive environments, this option provides a
full stainless steel heat exchanger assembly.
•STAINLESS STEEL DRAIN PAN - An optional rust-
proof stainless steel drain pan is available to provide
years of trouble-free operation in corrosive environments.
•BOTTOM DRAIN CONNECTION - An optional bottom
drain connection is available for inside the curb connections for applications in cold environments to reduce
freezing drain lines.
•PHASE MONITORS - Designed to prevent unit damage.
The phase monitor will shut the unit down in an out-ofphase condition.
•DIRTY FILTER SWITCH - This kit includes a differential
pressure switch that energizes the fault light on the unit
thermostat, indicating that there is an abnormally high
pressure drop across the filters. Factory installed option
or field installed accessory.
•HINGED FILTER DOOR/“TOOLLESS” BLOWER AND ACCESS PANELS (not hinged) - This option allows for
easy access and maintenance.
NOTE:Knobs are shipped inside the unit to prevent ship-
ping damage. These must be field installed for
tool-less operation.
•HIGH STATIC DRIVE OPTION - May include a belt,
blower pulley, motor pulley or a motor change to
enhance blower performance.
FIELD-INSTALLED ACCESSORIES
•SINGLE INPUT ELECTRONIC ENTHALPY ECONOMIZERS - Includes a slide-in / plug-in damper assembly
with fully modulating spring-return motor actuator capable of introducing up to 100% outdoor air with nominal
1% leakage type dampers.
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 2position, 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 provided 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 finished
roof. These full perimeter curbs meet the requirements of
the National Roofing Contractors Association (NRCA) and
are shipped knocked-down for field assembly.
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 altitudes 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 nanograms 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 conditioned space from being over-pressurized during economizer operation.
The power exhaust option can only be used on bottom duct configurations.
•BAROMETRIC RELIEF DAMPER - This damper accessory 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
Johnson Controls Unitary Products7
Page 8
392856-YTG-B-0708
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
•CO
•COIL GUARD - Customers can purchase a coil guard kit
•HAIL GUARD -Hail Guard Kit is available to protect coils
•GAS PIPING KIT - This kit supplies all necessary fittings
SENSOR - Senses CO2 levels and automatically
2
overrides the economizer when levels rise above the
present limits.
to protect the condenser coil from damage. This is not a
hail guard kit.
from damage. This is a sloped hood that fits above the
outdoor coil.
and shut off valve.
entering nearby fresh air intakes.
TABLE 1: SOUND POWER RATING
UNIT
SIZE
0722,2000.3HIGH1.3587877770726560557744
CFM
1. These values have been accessed using a model of sound propagation from a point source into the hemispheric\free field. The
dBA values provided are to be used for reference only. Calculation of dBA values cover matters of system design and the fan
manufacture has no way of knowing the details of each system. This constitutes and expectation to any specification or guarantee requiring a dBA value or sound data in any other form than sound power level ratings.
2. At a distance of 10 feet from the blower.
ESPBLOWER
IWGSPEEDKW631252505001,0002,0004,0008,000
1
SOUND POWER (db 10
Octave Band Centerline Frequency (Hz)
-12
Watts)
SWL
dB(A)
dB(A)
@
10Ft.
2
TABLE 2: CAPACITY RATINGS - (ARI 210/240)
MODELMBH
DM072
1. 80/67°F Indoor and 95°F outdoor.
2. EER = Energy Efficiency Ratio at full load - the cooling
capacity in Btu’s per hour (Btuh) divided by the power
input in watts, expressed in Btuh per watt (Btuh/watt).
1. These capacities are gross ratings. For net capacity, determine the kW of the supply air blower motor from the SUPPLY AIR BLOWER PERFORMANCE
Table, multiply this value by 3.415 MBH/kW to determine the motor heat, and deduct this heat from the gross capacity of the unit.
2. These ratings include the compressor and the condenser fan motors but not the supply air blower motor. The total condenser fan motor power input
is 0.36kW. Refer to the SUPPLY AIR BLOWER PERFORMANCE Table for the kW of the supply air blower motor.
NOMINAL RATING
Johnson Controls Unitary Products9
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392856-YTG-B-0708
TABLE 6: SUPPLY AIR BLOWER PERFORMANCE (DM072 BELT DRIVE) - SIDE DUCT APPLICATION
1. All motors have solid bases and are inherently protected. these motors ca n be sel ected t o opera te into th eir service f actor because they are located
in the moving air, upstream of any heating device.
MOTOR
Datum
Motor SheaveBlower Sheave
Dia.
(in.)
Bore
(in.)
Model
Datum
Dia.
(in.)
Bore
(in.)
Model
Belt
TABLE 12: STATIC RESISTANCES
RESISTANCE, IWG
DESCRIPTION
ECONOMIZER
ELECTRIC
HEATERS
COOLING ONLY
1. Deduct these resistance values from the available external static pressure shown in SUPPLY AIR BLOWER PERFORMANCE Tables.
2. Add these resistance values to the available static resistance values on SUPPLY AIR BLOWER PERFORMANCE Tables.
3. The pressure through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air duct system is less than
0.25 IWG, the unit will deliver less CFM during full economizer operation.
2.Calculate or measure the amount of external static pressure.
3.Using the operating point determined from steps 1 & 2, locate this point on the appropriate supply air blower performance table. (Linear
interpolation may be necessary.)
4.Noting the RPM and BHP from step 3, locate the appropriate model and drive on the RPM selection table.
5.Review the BHP compared to the motor options available. Select the appropriate motor.
6.Review the RPM range for the motor options available. Select the appropriate drive if multiple drives are available for the chosen motor.
7.Determine turns open to obtain the desired operation point.
Example
1.19000 CFM
2.5.4 iwg
3.Using the supply air blower performance table below, the following data point was located: 1150 RPM & 36 BHP.
4.Using the RPM selection table below, Size X and Model Y is found.
5.36 BHP exceeds the maximum continuous BHP rating of the 30 HP motor. The 40 HP motor is required.
6.1150 RPM is within the range of the 30 & 40 HP drives, but step 5 requires the 40 HP motor.
7.Using the 40 HP motor and drive, 5.5 turns open will achieve 1150 RPM.
SECOND STAGE COOLING IS NOT REQUIRED ON UNITS LESS ECONOMIZER.
3
SECOND STAGE HEATING IS ONLY REQUIRED ON UNITS WITH A TWO STAGE
ELECTRIC HEATER OR 2 STAGE GAS HEAT.
4
REMOVE JUMPER J2 FROM TERMINALS 4 AND 9 ON JUMPER PLUG CONNECTOR
P6 ON UNITS WITH ECONOMIZER. TERMINALS A1 AND A2 PROVIDE A RELAY
OUT-PUT TO CLOSE THE OUTDOOR ECONOMIZER DAMPERS WHEN THE
THERMOSTAT SWITCHES TO THE SET-BACK POSITION.
COOLING / HEATING (24 VOLT THERMOSTAT)
THERMOSTAT
TERMINALS
ADD
JUMPER
1
24 VOLT THERMOSTAT 2ET07701024. TO CONTROL THE ECONOMIZER ON THE SECOND
STAGE COOLING OR TO HAVE AN ELECTRIC HEAT ACCESSORY WITH TWO STAGES OF
HEAT, USE THERMOSTAT 2TH0471024.
1
RH
RC
Y
W
G
UNIT TERMINAL
STRIP TB1
R
Y1
Y2
W1
W2
G
C
24 VOLT
TRANSFORMER
COOLING / HEATING (ELECTRONIC THERMOSTAT)
SINGLE STAGE
THERMOSTAT
TERMINALS
RH
ADD
JUMPER
1
ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET07701024 (INCLUDES SUBBASE).
TO CONTROL THE ECONOMIZER ON SECOND STAGE COOLING, USE THERMOSTAT
2TH04700224.
RC
1
UNIT TERMINAL
STRIP TB1
R
Y
W
G
Y1
W1
G
C
24 VOLT
TRANSFORMER
FIGURE 3 -TYPICAL FIELD POWER & CONTROL WIRING
Johnson Controls Unitary Products17
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392856-YTG-B-0708
FIGURE 4 -UNIT DIMENSIONS (6 TON COOLING ONLY/ELECTRIC HEAT) FRONT VIEW
FIGURE 5 -UNIT DIMENSIONS (6 TON COOLING/GAS HEAT) FRONT VIEW
18Johnson Controls Unitary Products
Page 19
FIGURE 6 -UNIT WITH ECONOMIZER RAINHOOD
392856-YTG-B-0708
DETAIL “A”
DETAIL “B”
FIGURE 7 -UNIT WITH FIXED OUTDOOR AIR/MOTORIZED DAMPER RAINHOOD
Johnson Controls Unitary Products19
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392856-YTG-B-0708
FIGURE 8 -UNIT DIMENSIONS (REAR VIEW)
Filter Access
Blower Motor Access
Dot Plugs
Field -Supplied Disconnect
Switch Location
Mountin g Bracket for
Disconnect Switch
(Field Supplied)
Disconnect Switch Location
and Motor Access Panel for
Unit with “Belt-Drive” Option
A,B
Wiring Entry
(See Detail “B”)
Control Box Access
FIGURE 9 -DISCONNECT/BLOWER ACCESS LOCA-
TION
TABLE 23: UTILITIES ENTRY
HOLEOPENING SIZE (DIA.)USED FOR
A
B
C
D
1
7/8” KO
2” KO
1
Control Wiring
Power Wiring
1-5/8” KOGas Piping (Front)
1-1/2” KO
Gas Piping (Bottom)
1. Opening in the bottom to the unit can be located by the
side in the insulation.
2. Do not remove the 2” knockout ring.
Side
2
Bottom
Side
Bottom
TABLE 24: MINIMUM CLEARANCES
LOCATION
Front
Rear
Left Side (Filter Access)
Right Side (Cond. Coil)
Below Unit
Above Unit
1
2
1. Units may be installed on combustible floors made
from wood or class A, B, or C roof covering material.
2. Units must be installed outdoors. Overhanging structures or shrubs should not obstruct condenser air discharge outlet.
CLEARANCE
24” (Cooling/Electric Heat)
32” (Gas Heat)
12” (Less Economizer)
36” (With Economizer or Fixed
Air/Motorized Damper)
24” (Less Economizer)
36” (With Economizer)
72” (For
Condenser Air Discharge)
24”
0”
20Johnson Controls Unitary Products
Page 21
392856-YTG-B-0708
FIGURE 10 -TYPICAL APPLICATIONS
Johnson Controls Unitary Products21
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392856-YTG-B-0708
447/
8
A
BACK OF UNIT
821/
4
D
X
APPROXIMATE
CENTER OF GRAVITY
FRONT OF UNIT
C
B
CONDENSER COIL
Y
END OF UNIT
FIGURE 11 -FOUR AND SIX POINT LOADING
T ABLE 25: DM 4 AND 6 POINT LOADS WEIGHT DISTRIBUTION
Units shall be manufactured by Johnson Controls Unitary
Products in an ISO 9001 certified facility.
TM
York's Sunline 2000
units. Although the units are primarily desi gned for curb moun ting on a roof, they can also be slab-mounted at ground level or
set on steel beams above a finished roof. Cooling only, cooling
with gas heat and cooling with electric heat models are available with a wide variety of factory-mounted options and fieldinstalled accessories to make them suitable for almost every
application. All units are self-contained and assembled on full
perimeter base rails with holes in the four corners for overhead
rigging. Every unit is completely piped, wired, charged and
tested at the factory to simplify the field installation and to provide years of dependable operation. All models (including
those with an economizer) are suitable for either bottom or h orizontal duct connections. Models with power exhaust are suitable for bottom duct connections only. For bottom duct,
remove the sheet metal panels from the supply and return air
openings through the base of the unit. For horizontal duct,
remove the supply and return air panels on the rear of the unit.
All non-Scroll compressors include crankcase heaters and all
compressors have internal pressure relief. Every refrigerant
circuit includes a liquid line filter-drier, a discharge line high
pressure switch and a suction line with a freezestat and low
pressure/loss of charge switch.The unit control circuit
includes a 75 VA transformer, a 24-volt circuit breaker and a
relay board with a compressor lockout circuit, a terminal strip
for thermostat wiring, plus an additional set of pin connectors
to simplify the interface of additiona l field controls. All units
have long lasting powder paint cabinets with 1000 hour salt
spray test approval under ASTMB117 procedures. All models
are CSA listed. All models include a 1-year limited warranty
on the complete unit. Compressors and electric heater elements carry a 5-year warranty. Aluminized steel and St ainless
steel tubular heat exchangers carry a 10-year warranty.
DESCRIPTION
Units shall be factory-assembled, single packaged, Electric
Cooling/Gas Heat, Electric Cooling/Optional Electric Heat
and designed for outdoor mounted installation.
The 6 ton unit shall have minimum EER ratings of 9.0. They
shall have built-in field convertible duct connections for down
discharge supply/return or horizontal discharge supply/return,
and be available with factory installed options or field installed
accessories. The units shall be factory wired, piped, charged
with R-22 refrigerant and factory tested prior to shipment. All
unit wiring shall be both numbered and color coded. All units
the cooling performance shall be rated in accordance with
DOE and ARI test procedures. Units shall be CSA listed,
classified to ANSI Z21.47, UL 1995/CSA No. 236 standards.
units are convertible single package-
UNIT CABINET
Unit cabinet shall be constructed of a combination of G60 and
G90 galvanized steel, with exterior surfaces coated with a nonchalking, powdered paint finish, certified at 1000 hours salt
spray test per ASTMB1 17 standards. Indoor blower section shall
be insulated with a minimum 1/2” thick insulation, coated on the
airside. Aluminum foil faced insulation shall be used in the furnace compartment and be fastened with ridged fasteners to prevent insulation from entering the air stream. Cabinet panels shall
be “large” size, easily removable for servicing and maintenance.
Full perimeter base rails shall be provided to assure reliable
transit of equipment, overhead rigging and proper sealing on
roof curb applications. Disposable 1" filters shall be furnished
and be accessible through a removable access door, sealed airtight. Units filter track shall be designed to accommodate either
1” or 2” filters. Fan performance measuring ports shall be provided on the outside of the cabinet to allow accurate air measurements of evaporator fan performance without removing
panels or creating air by-pass of the coils. Condensate pan shall
be internally sloped and conform to ASHRAE 62-89 self-draining standards. Condensate connection shall be a minimum of 3/
4” I.D. female and be a ridged mount connection.
INDOOR (EVAPORATOR) FAN ASSEMBLY
The indoor fan shall be direct drive, multi-speed, or a factory
installed belt drive assembly that includes an adjustable pitch
motor pulley . Job site selected brake horsepower (B.H.P.) shall
not exceed the motors nameplate horsepower rating, plus the
service factor. Unit s shall be de sig ned not to op era te above
service factor. Fan wheel sha ll be double -inlet typ e with forward-curved blades, dynamically balanced to operate
smoothly throughout the entire range of operation. Airflow
design shall be constant air volume. Bearings shall be sealed
and permanently lubricated for longer life and no maintenance.
OUTDOOR (CONDENSER) FAN ASSEMBLY
The outdoor fan shall be of the direct-driven propeller type,
discharge air vertically, have aluminum blades riveted to a
corrosion resistant steel spider bracket and shall be dynamically balanced for smooth operation. The outdoor fan motor
shall be totally enclosed with permanently lubricated bearings, internally protected against overload conditions and
staged independently.
REFRIGERANT COMPONENTS
Compressor:
a.Shall be internally protected with internal high-pres-
sure relief and over temperature protection.
b.Shall have internal spring isolation and sound muf-
fling to minimize vibration and noise, and be externally isolated on a dedicated, independent mounting.
Coils:
a.Evaporator and condenser coils shall have alumi-
num plate fins mechanically bonded to seamless
internally enhanced copper tubes with all joints
brazed. Special Phenolic coating shall be available
as a factory option.
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392856-YTG-B-0708
b.Evaporator and Condenser coils shall be of the
direct expansion, draw-thru, design.
Refrigerant Circuit and Refrigerant Safety Components shall
include:
a.Independent fixed-orifice expansion devices.
b.Filter drier/strainer to eliminate any moisture or for-
eign matter.
c.Accessible service gage connections on both suc-
tion and liquid lines to charge, evacuate, and measure refrigerant pressure during any necessary
servicing or troubleshooting without losing charge.
d.The refrigeration system shall provide at least 15°F
of sub-cooling at design conditions.
UNIT CONTROLS
a.Unit shall be complete with self-contained low-volt-
age control circuit protected by a resetable circuit
breaker on the 24-volt transformer side.
b.Unit shall incorporate a lockout circuit which pro-
vides reset capability at the space thermostat or
base unit, should any of the following standard
safety devices trip and shut off compressor.
c.Loss-of-charge/Low-pressure switch.
d.High-pressure switch.
e.Freeze-protection thermostat, evaporator coil.
f.If any of the above safety devices trip, a LED (light-
emitting diode) indicator shall flash a diagnostic
code that indicates which safety switch has tripped.
g.Unit shall incorporate “AUTO RESET” compress or
over temperature, over current protection.
h.Unit shall operate with conventional thermostat
designs and have a low voltage terminal strip for
easy hook-up.
i.Unit control board shall have on-board diagnostics
and fault code display.
j.Standard controls shall include anti-short cycle and
low voltage protection, and permit cooling operation
down to 0°F.
k.Control board shall monitor each refrigerant safety
switch independently.
l.Control board shall retain last 5 fault codes in non
volatile memory, which will not be lost in the event of
a power loss.
GAS HEATING SECTION (SINGLE OR 2 STAGE)
Shall be designed with induced draft combustion with post
purge logic, energy saving direct spark ignition, and redundant main gas valve. Venter wheel shall be constructed of
stainless steel for corrosion resistance. The heat exchanger
shall be of the tubular type, constructed of T1-40 aluminized
steel for corrosion resistance and allowing minimum mixed
air entering temperature of 25°F. Burners shall be of the
inshot type, constructed of aluminum coated steel and contain air mixture adjustments. All gas piping shall enter the unit
cabinet at a single location through either the side or curb,
without any field modifications. Integrated control boards
shall provide timed control of evaporator fan functioning and
burner ignition. Heating section shall be provided with the following minimum protection:
a.Primary and auxiliary high-temperature limit
switches.
b.Induced draft motor speed sensor.
c.Flame roll out switch (manual reset).
d.Flame proving controls.
e.If any of the above safety devices trip, a LED (light-
emitting diode) indicator shall flash a diagnostic
code that indicates which safety switch has tripped.
ELECTRIC HEATING SECTION
An electric heating section, with nickel chromium elements,
shall be provided in a range of 5 thru 30 KW, offering two
stages of capacity - 16 KW and above on 208/230 volt heaters and 20 KW and above on 460 and 575 volt heaters. The
heating section shall have a primary limit control(s) and automatic reset to prevent the heating element system from operating at an excessive temperature. The heating section
assembly shall slide out of the unit for easy maintenance and
service. Units with Electric Heating shall be wired for a single
point power supply with branch circuit fusing (where
required).
UNIT OPERATING CHARACTERISTICS
a.Unit shall be capable of starting and running at
125°F outdoor temperature, exceeding maximum
load criteria of ARI Standard 210/240. The compressor, with standard controls, shall be capable of operation down to 0°F outdoor temperature. Unit shall be
provided with fan time delay to prevent cold air
delivery before heat exchanger warms up (Gas heat
only).
ELECTRICAL REQUIREMENTS
All unit power wiring shall enter unit cabinet at a single factory
provided location and be capable of side or bottom entry, to
minimize roof penetrations and avoid unit field modifications.
Separate side and bottom openings shall be provided for the
control wiring.
STANDARD LIMITED WARRANTIES
•Compressor 5 Years
•Heat Exchanger 10 Years
•Electric Heat Element 5 Years
•Other Parts 1 Year
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392856-YTG-B-0708
OPTIONAL OUTDOOR AIR (Shall be made available by
either/or):
•ELECTRONIC ENTHALPY AUTOMATIC ECONO-MIZER- Outdoor and return air dampers that are interlocked 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 potentiometer 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 conditioned space during normal operation. During economizer 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 operation shall be provided by an integral electronic enthalpy
control that feeds input into the basic module. The outdoor intake opening shall be covered with a rain hood
that matches the exterior of the unit. Water eliminator/filters shall be provided. Simultaneous economizer/compressor 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 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 potentiometer 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 assembling.
•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
•TECHNICOAT PHENOLIC COATED CONDENSER
AND EVAPORATOR COIL
•ELECTRONIC SINGLE ENTHALPY ECONOMIZER
•DIRTY FILTER SWITCH
•PHASE MONITOR
•COIL GUARD
•POWERED GFI CONVENIENCE OUTLET
•NON-POWERED GFI CONVENIENCE OUTLET
®
•BAS CONTROLS (Simplicity
INTELLI-Comfort™,
CPC, JOHNSON, HONEYWELL, NOVAR, YORK COMMERCIAL COMFORT SYSTEM (YCCS))
•BAS READY ECONOMIZER (2 - 10 V. D. C.
ACTUATOR WITHOUT A CONTROLLER)
•HINGED FILTER DOOR ACCESS AND TOOLESS
ACCESS PANELS
•2" PLEATED FILTERS
•DISCONNECT SWITCH
•SUPPLY AIR SMOKE DETECTOR
•RETURN AIR SMOKE DETECTOR
•HIGH STATIC DRIVE OPTION - May include a belt,
blower pulley, motor pulley or a motor change to
enhance blower performance.