York PCG4A24 Technical Manual

Contents

5005562-YTG-A-02154 Johnson Controls Unitary ProductsACCESSORIES• Propane Conversion Kit (S1-1NP0702, S1-1NP0701) - Kitincludes burner orifices, gas valve conversion and installa-tion instructions necessary to field convert unit from naturalgas to propane.• Economizer for Downflow Applications(S1-2EE04708424, S1-2EE04708524) - Modulating inte-grated economizer provides simultaneous operationbetween the mechanical cooling and economizer operation.Independent blade design insures proper control and lessthan 1% leak rate. Includes hood and mesh bird screen filterintegrated into the hood, dry bulb sensor and relief damper.Separate field accessories of single enthalpy and dualenthalpy are also available.• Economizer for Horizontal Applications(S1-2EE04708624, S1-2EE04708724) - Modulating inte-grated economizer provides simultaneous operationbetween the mechanical cooling and economizer operation.Independent blade design insures proper control and lessthan 1% leak rate. Includes hood and mesh bird screen filterintegrated into the hood, dry bulb sensor and relief damper.Separate field accessories of single enthalpy and dualenthalpy are also available.• Single/Dual Enthalpy Sensor (S1-2EC04700624) - Sensorreplaces dry bulb sensor standard in economizer kit. Pro-vides improved economizer operation by sensing the drybulb temperature from outdoors plus the enthalpy content ofthe outdoor air.• CO2 Sensor Kit (S1-2AQ04700824) - Sensor kit detectsCO2 levels automatically and overrides the economizerwhen CO2 levels rise above the preset limits.• Outdoor Temp. Sensor Kit(S1-2EC04700724S1-2EC04700724v) - Additional outdoorair temp sensor kit used with economizers.• Filter/Frame Kit (Single Phase Only)(S1-1FF0602, S1-1FF0601) - Kit contains the necessaryhardware to field install return air filters into the base unit.The filter rack is suitable for either 1" or 2" filters. (filters notsupplied) This kit is available for single phase horizontal orvertical duct applications.• Motorized Fresh Air Damper(S1-2MD04705224, S1-2MD04705124) - Designed for ductmounted side supply/return and unit mounted down supply/return applications. Damper capable of providing 0% through50% of outdoor air (field supplied). Closes on power loss,includes hood and screen assembly.• Rectangle to Round (Horizontal) Adapter(S1-1AK0109, S1-1AK0108) - Kit includes one supply andone return air rectangle to round duct adapter. Adapters arepreformed and designed to fit over current horizontal ductopenings on the base unit. Transition is from rectangle to 12"round for the 1AK0108 kit and from rectangle to 14" round forthe 1AK0109 kit.• Rectangle to Round (Downflow) Adapter(S1-1AK0110, S1-1AK0111) - Kit includes one supply andone return air rectangle to round duct adapter. Adapters arepreformed and designed to fit over current downflow ductopenings on the base unit using a roof curb. Transition isfrom rectangle to 16" round for the 1AK0110 kit and fromrectangle to 18" round for the 1AK0111 kit.• Roof Curbs (S1-1RC0503, S1-1RC0501) - NRCA approvedcurbs provide proper fit to base unit for rooftop installations.Curbs are designed to be assembled through hinge pins ineach corner. Kit also provides seal strip to assure an air tightseal. These are 8 inch high roof curbs.• Roof Curbs (S1-1RC0504, S1-1RC0502) - NRCA approvedcurbs provide proper fit to base unit for rooftop installations.Curbs are designed to be assembled through hinge pins ineach corner. Kit also provides seal strip to assure an air tightseal. These are 14 inch high roof curbs.• Manual Outdoor Damper(S1-1FA0502, S1-1FA0501) - Provides 0% through 50% out-door air capability (field adjustable). Designed for ductmounted side supply/return applications. Includes hood andscreen assembly.• Wall Thermostat - The units are designed to operate withstandard, 24-volt electronic and electro-mechanical thermo-stats. All units can operate with single stage heat/singlestage cool thermostats - with or without the economizer.• Low Ambient Kit (S1-2LA04700824) - Kit provides neces-sary hardware to convert unit to operate in cooling cycledown to 0º F. Standard unit operation 45º F.• Transformer Kit (S1-2EC06700124) - Kit provides neces-sary hardware to provide single phase models from factoryfurnished 40 VA transformer capability to 75 VA transformercapability. (Required on installations with economizer ormotorized damper).• Base Rail Hole Cover Kit (S1-1HC0101) - Kit provides nec-essary hardware to close off openings in base rails to blockoff openings, i.e. prevent animal entrance.