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261660-YTG-C-0707
Unitary Products Group 5
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
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 factory
mounted BAS controls such as York® Simplicity® Intelli-
Comfort
™, Novar, Honeywell, Johnson, 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.
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
available for single enthalpy and differential enthalpy
configurations, respectively).
The rainhood is painted to match the basic unit and must
be field-assembled before installing.
• POWER EXHAUST - Our single 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 opera-
tion. BAS-ready economizer actuators have an adjustable
auxiliary end-switch to provide a range of damper positions
available to energize power exhaust. For units with optional
FIGURE 1 - UNIT CUTAWAY
LOCATION OF VFD (Optional)
LOCATION OF VFD BYPASS (Optional)