York 251934-YTG-J-0910 Outdoor Condenser Fan Assembly, Refrigerant Components, Unit Controls

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251934-YTG-J-0910

the service factor. Units shall be designed not to operate above service factor. Fan wheel shall be double-inlet type with forward-curved blades, dynamically balanced to operate smoothly throughout the entire range of operation. Airflow design shall be constant air volume.

A variable air volume (VAV) option using a variable frequency drive (VFD) is available for applications requiring a constant supply duct static pressure. Units 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. Units equipped with VFD’s shall have factory-installed manual bypass as an option.

Outdoor (Condenser) Fan Assembly

The outdoor fans shall be of the direct-driven propeller type, discharge air vertically, have aluminum blades riveted to corrosion resistant steel spider brackets and shall be dynamically balanced for smooth operation. The 4 outdoor fan motors shall be totally enclosed with permanently lubricated bearings, internally protected against overload conditions and staged independently.

Refrigerant Components

Compressors:

a. Shall be Scroll compressors internally protected with internal high-pressure relief and over temperature protection.

b.Shall have internal spring isolation and sound muffling to minimize vibration and noise, and be externally isolated on a dedicated, independent mounting.

Coils:

a. Evaporator and condenser coils shall have aluminum plate fins mechanically bonded to seamless internally enhanced copper tubes with all joints brazed. Special Phenolic coating shall be available as a factory option.

b. Evaporator and Condenser coils shall be of the direct expansion, draw-thru, design.

Refrigerant Circuit and Refrigerant Safety Components shall include:

a. Balance-port thermostatic expansion valve with independent circuit feed system.

b. Filter drier/strainer to eliminate any moisture or foreign matter.

c. Accessible service gage connections on both suction and discharge lines to charge, evacuate, and measure refrigerant pressure during any necessary servicing or troubleshooting, without losing charge.

d. The refrigeration system shall provide at least 15° F of sub-cooling at design conditions.

e. All models shall have four independent circuits.

f. Hot gas bypass option shall be factory-installed on compressor #1 discharge line to provide cooling in low- load applications. HGBP shall be a standard feature on VAV models and an optional feature on CV models.

Unit Controls

a. Unit shall be complete with self-contained low-voltage control circuit protected by a resettable circuit breaker on the 24-volt transformer side.

b. Unit shall incorporate a lockout circuit which provides reset capability at the space thermostat or base unit, should any of the following standard safety devices trip and shut off compressor.

c.Loss-of-charge/Low-pressure switch.

1.High-pressure switch.

2.Freeze-protection thermostat, evaporator coil. If any of the above safety devices trip, a LED (light-emitting diode) indicator shall flash a diagnostic code that indicates which safety switch has tripped.

d.Unit shall incorporate "AUTO RESET" compressor over temperature, over current protection.

e.Unit shall operate with conventional thermostat designs and have a low voltage terminal strip for easy hook-up.

f.Unit control board shall have on-board diagnostics and fault code display.

g.Standard controls shall include anti-short cycle and low voltage protection, and permit cooling operation down to

0°F.

h.Control board shall monitor each refrigerant safety switch independently.

i.Control board shall retain last 5 fault codes in non volatile memory, which will not be lost in the event of a power loss.

Gas Heating Section (ZJ/ZR/ZF***N Models)

Shall be designed with induced draft combustion with post purge logic and energy saving direct spark ignition, redundant main gas valve. Ventor wheel shall be constructed of stainless steel for corrosion resistance. 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 25 °F. Burners shall be of the in-shot type, constructed of aluminum coated steel and contain air mixture adjustments. All gas piping shall enter the unit cabinet at a single location through either the side or curb, 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 following minimum protection:

a.Primary and auxiliary high-temperature limit switches.

b.Induced draft motor speed sensor.

c.Flame roll out switch (automatic reset).

d.Flame proving controls. Unit shall have two independent stages of capacity.

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Johnson Controls Unitary Products

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Contents ZJ/ZR Shown DescriptionTable of Contents Component Location ZJ shownNomenclature Ton Sunline Magnum Model Number NomenclatureStandard Features Features and BenefitsBalanced Heating Factory Installed Options For 5-hp motor applications Field Installed Accessories Control OptionsGeneral Guide SpecificationsIndoor Evaporator Fan Assembly DescriptionUnit Controls Outdoor Condenser Fan AssemblyRefrigerant Components Gas Heating Section ZJ/ZR/ZF***N ModelsElectric Heating ZJ/ZR/ZF***C/E Models Unit Operating CharacteristicsOther Pre-engineered Accessories Available Electrical RequirementsNormal Mode Reheat Mode Sequence Of OperationAlternate Mode Reheat Control Board Reheat Controls PartRHB Physical Data ZJ180-300 Physical DataFilters ZR180-300 Physical Data No. speeds Number of motors Motor HP each ZF180-300 Physical Data AFUE%ZJ/ZR/ZF180-300 Unit Limitations MinZJ180-300 Cooling Capacities Capacity PerformanceZJ180 15 Ton 115F 125F ZJ210 17.5 Ton ZJ210 17.5 Ton ZJ240 20 Ton ZJ240 20 Ton ZJ300 25 Ton ZJ300 25 Ton ZR180-300 Cooling and Reheat Capacities ZR180 15 TonZR180 15 Ton ZR180 15 Ton Alternate Reheat Mode 35F 45FSensible Capacity MBh ZR240 20 Ton 115F 125F ZR240 20 Ton Alternate Reheat Mode 75F 85F ZR300 25 Ton 115F 125F ZR300 25 Ton Alternate Reheat Mode 75F 85F ZF180-300 Cooling Capacities ZF180 15 Ton115F 125F ZF210 17.5 Ton ZF210 17.5 Ton ZF240 20 Ton ZF240 20 Ton ZF300 25 Ton ZF300 25 Ton ZJ180 15 Ton Side Duct Airflow PerformanceZJ180-300 Side Duct Application ZJ210 17.5 Ton Side DuctZJ240 20 Ton Side Duct ZJ300 25 Ton Side Duct ZJ180 15 Ton Bottom Duct ZJ180-300 Bottom Duct ApplicationZJ210 17.5 Ton Bottom Duct ZJ240 20 Ton Bottom Duct ZJ300 25 Ton Bottom Duct ZR180 15 Ton Side Duct ZR180-300 Side Duct ApplicationZR240 20 Ton Side Duct ZR300 25 Ton Side Duct ZR180 15 Ton Bottom Duct ZR180-300 Bottom Duct ApplicationZR240 20 Ton Bottom Duct ZR300 25 Ton Bottom Duct ZF180 15 Ton Side Duct ZF180-300 Side Duct ApplicationZF210 17.5 Ton Side Duct ZF240 20 Ton Side Duct ZF300 25 Ton Side Duct ZF180 15 Ton Bottom Duct ZF180-300 Bottom Duct ApplicationZF210 17.5 Ton Bottom Duct ZF240 20 Ton Bottom Duct ZF300 25 Ton Bottom Duct RPM Selection Additional Static ResistanceDrive Selection Factor Altitude/Temperature Correction FactorsAir Temperature ºF Gas Heat Minimum Supply Air CorrectionPower Exhaust Specifications Indoor Blower SpecificationsElectric Heat Minimum Supply Air Sound Performance ZJ/ZR/ZF Indoor Sound Power LevelsZJ/ZR/ZF Outdoor Sound Power Levels Electric Heat MultipliersElectrical Data ZJ180-300 Standard Drive Without Powered Convenience OutletZJ180 MCA ZJ180-300 Standard Drive With Powered Convenience Outlet Model Stages AmpsZJ180-300 Standard Drive With Powered Convenience Outlet Conv YTG-J-0910 ZJ180-300 High Static Drive With Powered Convenience Outlet ZJ180-300 High Static Drive With Powered Convenience Outlet ZJ300 Low Static Drive Without Powered Convenience Outlet ZJ300 Low Static Drive With Powered Convenience OutletZR180-300 Standard Drive Without Powered Convenience Outlet ZR180ZR180-300 Standard Drive With Powered Convenience Outlet YTG-J-0910 ZR180-300 High Static Drive With Powered Convenience Outlet ZR300 Low Static Drive Without Powered Convenience Outlet ZR300 Low Static Drive With Powered Convenience OutletZF180-300 Standard Drive Without Powered Convenience Outlet ZF180Pwr Max Fuse Motors ZF180-300 Standard Drive With Powered Convenience Outlet ZF180-300 Standard Drive With Powered Convenience Outlet ZF180-300 Hi Static Drive Without Powered Convenience Outlet ZF180-300 Hi Static Drive Without Powered Convenience Outlet ZF180-300 Hi Static Drive With Powered Convenience Outlet ZF180-300 Hi Static Drive With Powered Convenience Outlet ZF180-300 Low Static Drive With Powered Convenience Outlet ZJ/ZR/ZF180-300 Wiring Diagrams ZJ180-300 Typical Control DiagramZR180-300 Typical Control Diagram OCC Terminal BlockZF180-300 Typical Control Diagram OCCZJ/ZR/ZF180-300 Unit Weights Weights and DimensionsZF Unit 4 Point Load Weight ZF Unit 6 Point Load Weight ZJ/ZR/ZF180-300 Unit Accessory Weights Supply Fan VFD Weights, in LbsZJ/ZR Unit Dimensions Front View Unit DimensionsUtilities Entry Front View For bottom duct applications ZJ/ZR/ZF Unit Dimensions Rear ViewFor side duct applications ZJ/ZR/ZF Unit Dimensions Rain Hood ZJ/ZR/ZF180-300 Unit ClearancesZJ/ZR180-300, ZF210-300 Roof Curb Unit Accessory DimensionsZF180 Roof Curb ZJ/ZR/ZF180-300 Typical Installation Johnson Controls Unitary Products York Drive Norman, OK

251934-YTG-J-0910 specifications

York 251934-YTG-J-0910 is an innovative climate control system designed for both residential and commercial applications. This unit stands out for its advanced engineering, eco-friendly technologies, and user-centric features. With a focus on efficiency and sustainability, the York 251934-YTG-J-0910 offers a powerful solution for maintaining optimal indoor climates.

One of the main features of the York 251934-YTG-J-0910 is its high-efficiency operation. The unit boasts impressive Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF) ratings, which indicate its ability to provide significant energy savings compared to traditional systems. The use of variable speed technology further enhances its efficiency, allowing the system to adjust its output based on real-time demand, leading to quieter operation and reduced energy consumption.

The York 251934-YTG-J-0910 incorporates cutting-edge inverter technology, which enables smooth transitions between different performance levels. This ensures consistent comfort while minimizing energy usage, making it an ideal choice for eco-conscious consumers. The unit also includes advanced inverter-driven compressors that enable faster cooling and heating capabilities, providing rapid comfort during extreme temperature conditions.

In terms of environmental impact, the York 251934-YTG-J-0910 is designed to operate with lowGlobal Warming Potential (GWP) refrigerants. This not only contributes to reduced greenhouse gas emissions but also aligns with global sustainability efforts. The unit is compliant with various environmental regulations, making it a responsible choice for climate-conscious users.

Another notable characteristic of this system is its intuitive smart controls. The York 251934-YTG-J-0910 is compatible with Wi-Fi-enabled thermostats and smart home systems, allowing users to monitor and adjust their indoor climate remotely. This level of connectivity offers convenience, energy management, and peace of mind.

Durability and reliability are also paramount to the York brand, and the 251934-YTG-J-0910 reflects this commitment. The unit features a robust construction with corrosion-resistant materials, ensuring longevity even in the harshest environments. Comprehensive warranties accompany the product, underlining the manufacturer’s confidence in its performance and durability.

In summary, the York 251934-YTG-J-0910 combines high efficiency, advanced technology, environmental responsibility, and user-friendly features, positioning it as a top contender in the climate control market. With its commitment to comfort and sustainability, it appeals to both residential and commercial users looking for reliable and efficient climate management solutions.