York DJ 180 User Manual download pdf (Page 5)

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)

1 2 3 4 5 6 7 8 9 10 ... 39 40

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York DJ 180 User Manual Page 5

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