Factory-Installed Options; Unit Cutaway - York WJ 180 Technical Manual

FIGURE 1 - UNIT CUTAWAY
All units have long lasting powder paint cabinets with 1000
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.
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.
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 (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.
The power supply wiring can be routed into the control
box through a threaded pipe connection in the base pan
Johnson Controls Unitary Products
LOCATION OF VFD (Optional)
LOCATION OF VFD BYPASS (Optional)
of the unit or through a knockout in the wiring panel on
the front of the unit.
• BAS Controls - York's Magnum™ series units offer fac-
tory mounted BAS controls such as Simplicity
®
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.
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.
• 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.
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.
262291-YTG-F-1009
®
Intelli-
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