York DJ 210 Technical Manual

Also see for DJ 180: Technical guide

York DJ 210 Technical Manual Manual pdf 5 page image

261660-YTG-D-0708Johnson Controls Unitary Products 5with aluminized steel or optional stainless steel tubes, aredundant gas valve, spark ignition, power venting, anignition module for 100% shut-off and all of the safetycontrols required to meet the latest ANSI standards.The gas supply piping can be routed into the heatingcompartment through a hole in the base pan of the unitor through a knockout in the piping panel on the front ofthe unit.• Electric Heat Operation - All electric heat models (fac-tory installed only) are wired for a single power sourceand include a bank of nickel chromium elementsmounted at the discharge of the supply air blower to pro-vide a high velocity and uniform distribution of air acrossthe heating elements. Every element is fully protectedagainst excessive current and temperature by fuses andtwo thermal limit switches.The power supply wiring can be routed into the controlbox through a threaded pipe connection in the base panof the unit or through a knockout in the wiring panel onthe front of the unit.• BAS Controls - York’s Magnum™ series units offer fac-tory mounted BAS controls such as Simplicity® Intelli-Comfort™, Novar, Honeywell, Johnson, York CommercialComfort System (YCCS) and CPC.FACTORY-INSTALLED OPTIONS• SINGLE INPUT ELECTRONIC ENTHALPY ECONO-MIZERS - Includes a slide-in / plug-in damper assemblywith fully modulating spring-return motor actuator capa-ble of introducing up to 100% outdoor air with nominal1% leakage type dampers.The enthalpy system contains one sensor that monitorsthe outdoor air and determines when the air is coolenough and dry enough to provide free cooling.The rainhood is painted to match the basic unit and mustbe field-assembled before installing.• BAS-READY ECONOMIZER - Includes a slide-in / plug-in damper assembly with fully modulating spring-returnmotor actuator with zero to 95-degree rotation capable ofintroducing up to 100% outdoor air with nominal 1% leak-age type dampers.Actuator requires 2-10 VDC input from an externalsource, such as a field-installed or factory-installed BAScontroller. 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 providefree-cooling operation. (Field-installed humidity sensorsfor either outdoor air or outdoor & return air streams areavailable for single enthalpy and differential enthalpyconfigurations, respectively).The rainhood is painted to match the basic unit and mustbe field-assembled before installing.• POWER EXHAUST - Our single economizer options areavailable with power exhaust. Whenever the outdoor airintake dampers are opened for free cooling, the exhaustfan will be energized to prevent the conditioned spacefrom being over-pressurized during economizer opera-tion. BAS-ready economizer actuators have an adjustableauxiliary end-switch to provide a range of damper positionsavailable to energize power exhaust. For units with optionalFIGURE 1 - UNIT CUTAWAYLOCATION OF VFD (Optional)LOCATION OF VFD BYPASS (Optional)