035-16192-001-A-1001

INDOOR

NON-ADJUSTABLE

NON-ADJUSTABLE

 

COIL

THERMAL EXPANSION

OUTDOOR

 

THERMAL EXPANSION

 

VALVE FOR HEATING

COIL

 

VALVE FOR COOLING

 

(5°F SUPER HEAT)

 

 

(10°F SUPER HEAT)

 

 

 

 

FILTER DRIERS

CHECK

VALVE

 

FIELD-INSTALLED

BRAZED

LIQUID LINE

REVERSING

CONNECTIONS

 

VALVE WITH

 

24-VOLT

 

SOLENOID

 

FIELD-INSTALLED

 

VAPOR LINE

KEY

COOLING CYCLE FLOW

HEATING CYCLE FLOW

SERVICE VALVES WITH

COPPER STUB CONNECTIONS

COMPRESSOR SUCTION LINE

ACCUMULATOR

FIG. 6 - REFRIGERANT FLOW DIAGRAM

OPERATION

GENERAL

During the cooling cycle, when the reversing valve solenoids becomes energized, operation will be the same as any conven- tional air conditioning system.

During the heating cycle, when the reversing valve solenoids becomes de-energized, compressor discharge gas will be di- verted to the indoor coil and the outdoor coil will become the evaporator.

Refer to Figure 6 for illustration showing the flow of refrigerant through a heat pump system.

CAUTION: Reversing valves and check valves are precise mechanical devices and will not tolerate any me- chanical abuse such as hammering. If a refrigerant system isn't properly cleaned after a compressor burn-out, scale may build up at these devices and prevent them from operating properly.

SYSTEM SEQUENCE OF OPERATION

The following sequences of operation are based on using the manual changeover thermostat. Refer to the respective unit wiring diagram.

COOLING OPERATION

The following controls will be1. energized through terminal O on the thermostat to put the system in the cooling mode.

Relays RY3, RY4, RY5, and RY6

If the fan switch on the thermostat2. is in the “ON” position, in- door section blower motor contactor 10M will be energized through terminal G to provide continuous blower operation. If the switch is in the “AUTO” position, the blower will oper- ate only when the thermostat calls for cooling operation.

3.When TC1 of the thermostat closes on demand for cooling, a circuit is made from the Y terminal on DC1 and DC2

Unitary Products Group

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York E1FB240, E1FB180 installation manual System Sequence of Operation, Cooling Operation, Volt

E1FB240, E1FB180 specifications

The York E1FB180 and E1FB240 are part of York's advanced series of commercial heating and cooling systems, specifically designed to meet the dynamic needs of modern edifices. These models stand out due to their balance of efficiency, reliability, and innovative technology, making them ideal solutions for a myriad of industrial and commercial applications.

One of the main features of the York E1FB series is its impressive energy efficiency. Both the E1FB180 and E1FB240 incorporate high-efficiency compressors that significantly reduce electricity consumption while providing optimal performance. This energy efficiency is crucial not only for reducing operational costs but also for ensuring compliance with increasingly stringent environmental regulations.

In terms of technology, the E1FB series utilizes advanced inverter-driven technology. This feature allows the system to adjust its cooling and heating output based on real-time demand, enabling it to operate at varying speeds. Consequently, this results in quieter operation and a reduction in wear and tear on the components, prolonging the lifespan of the equipment.

Moreover, both models possess robust construction to withstand the rigors of commercial environments. They are built using high-quality materials that ensure durability and reliability even in challenging conditions. This is complemented by an array of corrosion-resistant features, making them suitable for installation in diverse geographical locations, including coastal areas where salt and moisture are prevalent.

The York E1FB180 and E1FB240 also come equipped with sophisticated control systems. These smart controls allow for easy integration into building management systems, enabling real-time monitoring and management. This integration facilitates better energy management practices, yielding further operational savings and improved efficiency.

Additionally, the E1FB series incorporates environmentally friendly refrigerants that align with global initiatives for reducing greenhouse gas emissions. This commitment to sustainability is a cornerstone of York’s design philosophy and is increasingly important for businesses seeking to enhance their green credentials.

In summary, the York E1FB180 and E1FB240 are exemplary models that reflect the brand's commitment to efficiency, durability, and advanced technology. Their innovative features make them a preferred choice for businesses looking to invest in reliable HVAC solutions that not only meet but exceed contemporary performance and environmental standards.