York R-410A manual GAS Heating Section if Equipped

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528194-YTG-F-1210

GAS HEATING SECTION (IF EQUIPPED)

Heat exchanger and exhaust system shall be constructed of aluminized steel and shall be designed with induced draft com- bustion with post purge logic, energy saving direct spark igni- tion, and redundant main gas valve. The heat exchanger shall be of the tubular type, constructed of T1-40 aluminized steel for corrosion resistance and allowing minimum mixed air entering temperature of 40 ºF. Burners shall be of the in-shot type, con- structed of aluminum-coated steel. All gas piping shall enter the unit cabinet at a single location, through either the side or bot- tom, without any field modifications. An integrated control board shall provide timed control of evaporator fan functioning and burner ignition. Heating section shall be provided with the fol- lowing minimum protection:

a.Primary and auxiliary high-temperature limit switches.

b.Induced draft pressure sensor.

c.Flame roll out switch (manual reset).

d.Flame proving controls.

e.All two stage units shall have two independent stages of capacity (60% 1st stage, 100% 2nd stage).

ELECTRIC HEATING SECTION (IF EQUIPPED)

An electric heating section, with nickel chromium elements, shall be provided in a range of 9 thru 54 KW, offering two states of capacity all sizes. The heating section shall have a primary limit control(s) (automatic reset) to prevent the heating element system from operating at an excessive temperature. The Heat- ing Section assembly shall slide out of the unit for easy mainte- nance and service. Units with Electric Heating Sections shall be wired for a single point power supply with branch circuit fusing (where required).

UNIT OPERATING CHARACTERISTICS

Unit shall be capable of starting and running at 125 ºF outdoor temperature, exceeding maximum load criteria of ARI Standard 340/360. The compressor, with standard controls, shall be capable of operation down to 0 ºF outdoor temperature. Unit shall be provided with fan time delay to prevent cold air delivery before heat exchanger warms up. (Gas heat only)

ELECTRICAL REQUIREMENTS - All unit power wiring shall enter unit cabinet at a single factory provided location and be capable of side or bottom entry to minimize roof penetrations and avoid unit field modifications. Separate side and bottom openings shall be provided for the control wiring.

STANDARD LIMITED WARRANTIES - Compressor – 5 Years, Heat Exchanger – 10 Years, Elect. Heat Elem. – 5 Years, Parts – 1 Year

intake dampers shall not exceed 2% when dampers are fully closed and operating against a pressure differential of 0.5 IWG. A unit-mounted potentiometer shall be provided to adjust the outdoor and return air damper assembly to take in outdoor air to meet the minimum ventilation requirement of the conditioned space during normal operation. During economizer operation, a mixed- air temperature control shall modulate the outdoor and return air damper assembly to prevent the supply air temperature from dropping below 55 ºF. Changeover from compressor to economizer operation shall be provided by an integral electronic enthalpy control that feeds input into the basic module. The outdoor intake opening shall be covered with a rain hood that matches the exterior of the unit. Water eliminator/filters shall be provided. Simultaneous economizer/compressor operation is also possible. Dampers shall fully close on power loss. Available with barometric relief or power exhaust.

•MOTORIZED OUTDOOR AIR DAMPERS – Outdoor and return air dampers that are interlocked and positioned by a 2-position,spring-return damper actuator. The maximum leakage rate for the outdoor air intake dampers shall not exceed 2% when dampers are fully closed and operating against a pressure differential of 0.5 IWG. A unit-mounted potentiometer shall be provided to adjust the outdoor and return air damper assembly to take in the design CFM of outdoor air to meet the ventilation requirements of the conditioned space during normal operation. Whenever the indoor fan motor is energized, the dampers open up to one of two pre-selected positions

– regardless of the outdoor air enthalpy. Dampers return to the fully closed position when the indoor fan motor is de-energized. Dampers shall fully close on power loss.

ADDITIONAL FACTORY INSTALLED OPTIONS

•ALTERNATE INDOOR BLOWER MOTOR – For applications with high restrictions, units are available with optional indoor blower motors that provide higher static output and/or higher airflow.

•Variable Air Volume (VAV) – The VAV option using a varible frequency drive (VFD) shall be available on 6-1/2 through 12-1/2 ton, models for applications requiring a constant supply-duct static pressure. Unts equipped for VAV shall be controlled by a duct pressure transducer with a 0 - 5” WC pressure range. The pressure transducer shall provide a 0 - 5 VDC output signal to a VAV control board which, in turn shall provide a 2 - 10 VDC speed reference signal to the VFD. The VAV control board shall operate using factory-installed Supply Air, Return Air and Outside Air Temperature Sensors with a nominal resistance of 10,000 Ohms. Units equipped with VFD’s shall have factory-installed manual bypass as an option.

FACTORY INSTALLED OPTIONAL OUTDOOR AIR (Shall be made available by either/or):

•ELECTRONIC ENTHALPY AUTOMATIC ECONOMIZER

– Outdoor and return air dampers that are interlocked and positioned by a fully-modulating, spring-return damper actuator. The maximum leakage rate for the outdoor air

•CONVENIENCE OUTLET (POWERED/NON-POWERED)– Unit can be provided with an optional 120VAC GFCI outlet with cover on the corner of the unit housing the compressors.

•ELECTRIC HEAT - Electric Heaters range from 9 kW to 54 kW and are available in all the voltage options of the base unit.

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Johnson Controls Unitary Products

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Contents Technical Guide R-410A ZF Series DescriptionTable of Contents Component LocationNomenclature Ton York Model Number NomenclatureFeatures and Benefits Standard FeaturesFactory Installed Options YTG-F-1210 Field Installed Accessories Control OptionsYTG-F-1210 Accessories Field Installed Acessories Non-ElectricalField Installed Acessories Electric Heat Description Where UsedGuide Specifications Field Installed Acessories Fresh AirField Installed Acessories Controls Field Installed Acessories ElectricalUnit Cabinet GAS Heating Section if Equipped Other PRE-ENGINEERED Accessories Available Physical Data ZF078-150 Physical DataZF078 ZF090 ZF102 ZF120 ZF150 Condenser FAN DataBelt Drive Evap FAN Data FiltersZF078-150 Unit Limitations Size Unit LimitationsUnit Voltage Applied Voltage MinCapacity Performance ZF078-150 Cooling CapacitiesZF078 6.5 Ton 115F ZF090 7.5 Ton ZF090 7.5 Ton ZF102 8.5 Ton ZF102 8.5 Ton ZF120 10 Ton ZF120 10 Ton ZF150 12.5 Ton 115F 125F Airflow Performance ZF078-150 Side Duct ApplicationZF078 6.5 Ton Side Duct ZF090 7.5 Ton Side DuctZF120 10 Ton Side Duct ZF150 12.5 Ton Side DuctAvailable External Static Pressure IWG1 ZF078-150 Bottom Duct Application ZF078 6.5 Ton Bottom DuctZF090 7.5 Ton Bottom Duct ZF102 8.5 Ton Bottom DuctZF120 10 Ton Bottom Duct ZF150 12.5 Ton Bottom DuctRPM Selection Additional Static ResistanceCFM Airflow Performance Altitude/Temperature Correction Factors Air Temperature ºFFactor CorrectionIndoor Blower Specifications Power Exhaust SpecificationsGas Heat Minimum Supply Air Electric Heat Minimum Supply AirIndoor Sound Power Levels Outdoor Sound Power Levels ZF078-150Sound Performance Electric Heat MultipliersZF078-150 Standard Motor Without Powered Convenience Outlet Electrical DataZF078-150 Standard Motor Without Powered Convenience Outlet ZF078-150 Hi Static Motor Without Powered Convenience Outlet ZF078-150 Hi Static Motor Without Powered Convenience Outlet ZF078-150 Standard Motor With Powered Convenience Outlet ZF078-150 Standard Motor With Powered Convenience Outlet ZF078-150 Hi Static Motor With Powered Convenience Outlet ZF078-150 Hi Static Motor With Powered Convenience Outlet Typical Wiring Diagrams ZF078-150 Typical Wiring DiagramsYTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 Typical ZF078-150 Factory Installed VFD Option YTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 YTG-F-1210 Typical ZF078-150 VFD Ready Unit Option Weights and Dimensions ZF078-150 Unit WeightsUnit 4 Point Load Weight Unit 6 Point Load Weight ZF078-150 Unit Dimensions ZF078-150 Unit Accessory WeightsZF078 Shipping OperatingZF078-150 Unit Physical Dimensions DimensionZF150 Detail B Detail aZF078-150 Unit Clearances TOP View ZF078-150 Unit Bottom Duct OpeninFront ZF Side Duct Dimensions ZF150 Unit Side Duct OpeningsZF078-150 Unit Left Duct Opening ZF078-150 Unit Accessory Dimensions ZF078-150 Roof CurbZF078-150 Transition Roof Curb ZF078-150 Economizer Assembly Factory Installed Downflow Economizer Field Installed Downflow Economizer W/Power ExhaustEconomizer Options Economizer UsageField Installed Horizontal Economizer W/Power Exhaust Slab Economizer Downflow W/Power ExhaustSlab Economizer End Return W/Power Exhaust Johnson Controls Unitary Products York Drive Norman, OK
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R-410A specifications

York R-410A is a widely recognized and highly efficient refrigerant used in modern air conditioning systems. Developed as an environmentally friendly alternative to R-22, R-410A has gained popularity in the HVAC industry due to its numerous advantageous features and characteristics.

One of the main features of York R-410A is its ability to provide superior cooling performance. This refrigerant operates efficiently at both high and low temperatures, allowing systems using it to maintain optimal indoor climates even during extreme weather conditions. Its high energy efficiency ratio (EER) and seasonal energy efficiency ratio (SEER) ratings make it a preferred choice for energy-conscious consumers, resulting in lower energy bills and a reduced carbon footprint.

Technologically, York R-410A systems feature advanced compressor designs that enhance their overall reliability and performance. These compressors are often equipped with variable-speed technology, enabling them to adjust their output to match the cooling demands of the space. This not only improves comfort levels but also leads to efficient energy consumption, reducing wear and tear on the equipment over time.

Another significant characteristic of York R-410A is its non-ozone-depleting properties. Unlike its predecessor R-22, which is being phased out due to its damaging effects on the ozone layer, R-410A is designed to minimize environmental impact. Its lower global warming potential (GWP) further underscores its role in promoting sustainability within the HVAC sector.

Furthermore, York R-410A systems are engineered with enhanced safety features. The refrigerant is non-toxic and non-flammable, which makes it safer for use in both residential and commercial applications. Additionally, its high thermal stability reduces the risk of breakdown or leakage, contributing to longer system lifespans and lower maintenance costs.

In conclusion, York R-410A stands out as a cutting-edge refrigerant that combines efficiency, safety, and environmental responsibility. With its advanced technologies and remarkable characteristics, it meets the demands of modern air conditioning requirements while paving the way for a sustainable future in HVAC systems. Adopting York R-410A not only benefits individual users through improved comfort and lower energy bills but also plays a vital role in protecting our planet's ozone layer and mitigating climate change.
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