York DH 300 User Manual
262260-YTG-E-1008
Johnson Controls Unitary Products
5
All units have long lasting powder paint cabinets with 1000
hour salt spray test approval under ASTM-B117 procedures.
hour salt spray test approval under ASTM-B117 procedures.
All models are CSA approved.
•
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.
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 gas heat units are built with
two heating sections for two equal stages of capacity
control. 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.
two heating sections for two equal stages of capacity
control. 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.
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 (fac-
tory installed only) 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 pro-
vide a high velocity and uniform distribution of air across
the heating elements. Every element is fully protected
against excessive current and temperature by fuses and
two thermal limit switches.
tory installed only) 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 pro-
vide a high velocity and uniform distribution of air across
the heating elements. Every element is fully protected
against excessive current and temperature by fuses and
two thermal limit switches.
The power supply wiring can be routed into the control
box through a threaded pipe connection in the base pan
of the unit or through a knockout in the wiring panel on
the front of the unit.
box through a threaded pipe connection in the base pan
of the unit or through a knockout in the wiring panel on
the front of the unit.
•
BAS Controls - York’s Sunline™ series units offer factory
mounted BAS controls such as Simplicity
mounted BAS controls such as Simplicity
®
Intelli-
Comfort
™, Novar
®
, Honeywell, Johnson, York Commer-
cial Comfort System (YCCS) and CPC.
FACTORY-INSTALLED OPTIONS
•
SINGLE INPUT ELECTRONIC ENTHALPY ECONO-
MIZERS - Includes a slide-in / plug-in damper assembly
with fully modulating spring-return motor actuator capa-
ble of introducing up to 100% outdoor air with nominal
1% leakage type dampers.
MIZERS - Includes a slide-in / plug-in damper assembly
with fully modulating spring-return motor actuator capa-
ble 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 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.
be field-assembled before installing.
•
BAS-READY ECONOMIZER - Includes a slide-in / plug-
in damper assembly with fully modulating spring-return
motor actuator with zero to 95-degree rotation capable of
introducing up to 100% outdoor air with nominal 1% leak-
age type dampers.
in damper assembly with fully modulating spring-return
motor actuator with zero to 95-degree rotation capable of
introducing up to 100% outdoor air with nominal 1% leak-
age type dampers.
Actuator requires 2-10 VDC input from an external
source, such as a field-installed or factory-installed BAS
controller. BAS-ready actuators have an adjustable auxil-
iary end-switch for optional power exhaust control.
source, such as a field-installed or factory-installed BAS
controller. BAS-ready actuators have an adjustable auxil-
iary end-switch for optional power exhaust control.
For units with optional VAV or Simplicity® Intelli-Com-
fort™ control, a factory-installed, dry bulb sensor deter-
mines if outdoor air temperature is low enough to provide
free-cooling operation. (Field-installed humidity sensors
for either outdoor air or outdoor & return air streams are
fort™ control, a factory-installed, dry bulb sensor deter-
mines if outdoor air temperature is low enough to provide
free-cooling operation. (Field-installed humidity sensors
for either outdoor air or outdoor & return air streams are
FIGURE 1 - UNIT CUTAWAY
ELECTRICAL DISCONNECT
MOUNTING LOCATION
(Field installed)
MOUNTING LOCATION
(Field installed)
KNOCKOUT FOR
SIDE CONTROL WIRING ENTRY
SIDE CONTROL WIRING ENTRY
KNOCKOUT FOR
SIDE POWER WIRING ENTRY SIDE
SIDE POWER WIRING ENTRY SIDE
TERMINAL BLOCK
(For Single Point Power Supply
with Electric Heat)
ELECTRIC\ELECTRIC UNITS
(For Single Point Power Supply
with Electric Heat)
ELECTRIC\ELECTRIC UNITS
BOTTOM POWER & CONTROL
WIRING ENTRY
WIRING ENTRY
KNOCKOUTS FOR SIDE
GAS SUPPLY ENTRY
GAS SUPPLY ENTRY
HOLE FOR BOTTOM
GAS SUPPLY ENTRY
GAS SUPPLY ENTRY
POWER VENTOR MOTOR
WITH POST PURGE CYCLE
WITH POST PURGE CYCLE
BELT-DRIVE
BLOWER MOTOR
BLOWER MOTOR
FULL PERIMETER 14 GAUGE BASE
RAILS WITH LIFTING HOLES
RAILS WITH LIFTING HOLES
1" NPTI
CONDENSATE DRAIN
CONDENSATE DRAIN
SIDE AND BOTTOM
SUPPLY & RETURN AIR
DUCT OPENINGS(SIDE X SIDE)
SUPPLY & RETURN AIR
DUCT OPENINGS(SIDE X SIDE)
OUTDOOR AIR OPENING
FOR SLIDE-IN/PLUG-IN
INTERNAL ECONOMIZER(OPTION)
FOR SLIDE-IN/PLUG-IN
INTERNAL ECONOMIZER(OPTION)
2" DISPOSABLE
FILTERS
FILTERS
ECONOMIZER HOOD
LONG LASTING
POWDER PAINT FINISH
POWDER PAINT FINISH
20 GAUGE ALUMINIZED STEEL
TUBULAR HEAT EXCHANGERS
TUBULAR HEAT EXCHANGERS
COPPER TUBE/ALUMINUM FIN
CONDENSER COILS
CONDENSER COILS
LOW VOLTAGE RELAY BOARD
AND TERMINAL STRIP
AND TERMINAL STRIP
GAS/ELECTRIC
UNIT SHOWN
ELECTRIC HEATER LOCATION
(OPTIONAL ELECTRIC/ELECTRIC UNITS)
(OPTIONAL ELECTRIC/ELECTRIC UNITS)
HIGH EFFICIENCY COMPRESSORS
WITH CRANKCASE HEATERS
WITH CRANKCASE HEATERS
LOCATION OF VFD (Optional)
LOCATION OF VFD BYPASS (Optional)