York 48, 60 Electric Heating Section, Unit Operating Characteristics, Electrical Requirements

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036-21564-002-A-0404

(1)-- Loss--of--charge/Low--pressure switch.

(2)-- High--pressure switch.

If any of the above safety devices trip, an LED (light emitting diode) indicator shall illuminate.

C. Unit shall incorporate “AUTO RESET” compressor over--temperature, over--current protection.

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

E.Unit shall have freeze--protection thermostat on evapo- rator coil.

F.Unit shall incorporate an ambient compensated, time and temperature defrost control.

(1)-- Defrost shall be initiated on the basis of time and liq- uid line temperature.

(2)-- A50/80/110--minute timer shall activate defrost cycle only if liquid line temperature is low enough to indicate a heavy frost condition.

(3)-- Defrost cycle shall terminate when liquid line sensor is satisfied and shall have a positive termination time of 10 minutes.

ELECTRIC HEATING SECTION

1.An electric heating section, with nickel chromium ele- ments, shall be provided in a range of 5 thru 30 KW, of- fering two stages of capacity -- 16 KW and above on 208/230 volt heaters and 20 KW and above on 460 and 575 volt heaters.

2.The heating section shall have a primary limit control(s) and automatic reset, to prevent the heating element sys- tem from operating at an excessive temperature.

3.The Heating Section assembly shall slide out of the unit for easy maintenance and service.

4.Units with Electric Heating Sections shall be wired for a single point power supply with branch circuit fusing (where required).

UNIT OPERATING CHARACTERISTICS

1.Unit shall be capable of starting and cooling at 125° F outdoor temperature, exceeding maximum load criteria of ARI Standard 210/240.

2.The compressor, with standard controls, shall be capable of cooling down to 45° F outdoor temperature.

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

Elect. Heat. Elem.-- 5 Years

Parts -- 1 Year

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

1.ELECTRONIC ENTHALPY AUTOMATIC ECONO- MIZER -- Outdoor and return air dampers that are inter- locked and positioned by a fully--modulating, 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 potenti- ometer shall be provided to adjust the outdoor and return air damper assembly to take in CFM of outdoor air to meet the minimum ventilation requirement of the condi- tioned space during normal operation. During econo- mizer 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°F. Changeover from compressor to economizer op- eration shall be provided by an integral electronic en- thalpy 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/fil- ters shall be provided. Simultaneous economizer/com- pressor operation is also possible. Dampers shall fully close on power loss.

2.DUAL INPUT DIFFERENTIAL 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 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 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°F. Changeover from compressor to economizer operation shall be provided by two integral electronic enthalpy controls -- one that senses outdoor air and one that senses indoor air. Both enthalpy sensors supply input to the logic module which modulates both sets of dampers for maximum economizer savings. 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.

OTHER PRE--ENGINEERED ACCESSORIES AVAILABLE

1.ROOF CURB -- 14" AND 8" high, full perimeter knock- down curb with hinged design for quick assembly.

2.MANUAL OUTDOOR DAMPER -- Provides 0% through 35% or 0% through 100% outdoor air capability (field ad- justable). Designed for duct mounted side supply/return applications. Includes a hood and a screen assembly.

3.OUTDOOR COIL GUARD -- Prevents coil damage.

4.BAROMETRIC RELIEF DAMPER -- Contains a rain hood, air inlet screen, exhaust damper and mounting hardware. Used to relieve internal air pressure through the unit during economizer operation.

5.BURGLAR BARS -- Designed to work with above roofcurbs. Fits duct openings of curb supply and return air openings.

Unitary Products Group

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Contents Description FeaturesSingle Package AIR-TO-AIR Heat Pumps 036-21564-002-A-0404Table of Contents Features ContdRatings Sound Power RatingsPhysical Data Basic Units Capacity RatingsCooling Capacities 3 TON BCH036 Cooling Capacities 4 TON BCH048 Indoor 85 F 95 F Coil Total Cooling Capacities 5 TON BCH0602500 2250 2000 1750 1500 Air On Indoor 105 F 115 F Coil TotalHeating Capacities CFM RET. AIR CAP Outdoor AIR TEMPERATURE, F 72% RH MBHBCH CFM RPM Model AIR FlowModel Motor BCH Speed CFMMED Heater / CFM Limitations Static ResistancesMIN MAX RLA LRA FLA Amps Blower Circuit Size Breaker BCH PLY Motor AmpacitySize Number Motor Amps Ampacity Breaker FLA FLA Amps MIN MAX RLA LRA2CE04500725 27.1 2CE04500525 19.1208-1-60 2CE04501025 38.3 100 2CE04501525Power Wiring Control WiringDirect-Drive Units Knockout Hole Size Used forRear View Unit Dimensions CONTD. BCH 3, 4 & 5 TONDetail a Unit with Economizer RainhoodRoof Curb Dimensions Component Weights and Center of GravityCenter of Gravity FIELD--INSTALLED Accessories Factory Installed OptionsTypical Applications Typical ROOF-TOP InstallationMechanical Specifications Other PRE--ENGINEERED Accessories Available Unit Operating CharacteristicsElectric Heating Section Electrical RequirementsOther Factory Installed Options 036-21564-002-A-0404 Unitary Products Group
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B6CH 048, B5CH 036, B3CH 036, 48, 60 specifications

York 36, 48, and 60 are three distinct models from the York line of heating, ventilation, and air conditioning (HVAC) systems, specifically designed to meet various commercial and residential needs. Each model fits specific sizing and efficiency requirements while employing advanced technologies to enhance performance.

The York 36 model is ideal for smaller spaces or residential applications. This unit boasts a compact design that integrates seamlessly into tight locations while offering substantial energy efficiency. With a cooling capacity of approximately 36,000 BTU, it’s suitable for apartments or small commercial areas. The use of scroll compressors in this model contributes to reliable operation and quieter performance. Additionally, it utilizes environmentally friendly refrigerants that comply with modern environmental regulations, making it a sustainable choice.

The York 48 model steps up its capabilities for larger residential and commercial buildings. It provides ample cooling capacity at around 48,000 BTU, accommodating medium-sized spaces effectively. One of the standout features is its two-stage cooling technology, which allows for consistent temperature control without excessive energy consumption. This model is equipped with variable speed blowers that optimize airflow, ensuring a comfortable indoor environment even during peak summer months. The York 48 is also engineered with advanced diagnostics, allowing technicians to identify and resolve issues quickly, further enhancing reliability.

Finally, the York 60 model caters to extensive commercial applications with its impressive cooling capacity of approximately 60,000 BTU. This unit excels in large offices, retail spaces, and industrial settings. It employs advanced inverter technology, which adjusts compressor speed based on demand, leading to remarkable energy efficiency and significant cost savings in long-term operation. The York 60 also features robust insulation and weather-tight cabinet design to minimize energy loss. Additionally, its user-friendly interface allows for easy control and monitoring, ensuring optimal performance.

All three York models come equipped with state-of-the-art filters and air purifiers, improving indoor air quality by effectively reducing allergens and pollutants. With a focus on durability, energy efficiency, and advanced technology, York 36, 48, and 60 units represent versatile solutions for their respective applications, demonstrating York's commitment to innovation and sustainability in HVAC systems. Whether for a small apartment or a large commercial space, these units offer reliable comfort and performance tailored to specific needs.
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