York E1FB240, E1FB180 Extending the Service Ports, Evacuating and Charging, Balance Point Setting

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4.After the disc has been removed, burnish the external sur- faces and clean the internal surfaces as outlined above.

5.Move the dry nitrogen supply back to the access port on the liquid line service valve.

6.Braze the liquid line to the liquid connection on the indoor unit while maintaining a minimum flow of dry nitrogen through the liquid line, the indoor coil and the hole in the vapor disc.

7.Unbraze the disc on the vapor connection of the indoor unit while maintaining the flow of dry nitrogen.

8.After the disc has been removed, burnish the external sur- faces and clean the internal surfaces as outlined above.

The vapor piping can now be brazed to the vapor connection on the indoor unit while maintaining a minimum flow of dry nitro- gen.

Before brazing the vapor line to the outdoor unit, make sure the refrigerant in the line has been recovered, then remove the copper disc from its vapor connection per the following proce- dure:

1.Make sure that the vapor line service valve on the outdoor unit is front-seated and closed with its valve stem in the maximum clockwise position.

2.Drill a small hole through the disc before unbrazing it to per- mit a flow of dry nitrogen through the connection while its being unbrazed.

3.Move the dry nitrogen supply to the access port on the va- por line service valve of the outdoor unit.

4.Unbraze the disc on the vapor line connection of the out- door unit while maintaining a minimum flow of dry nitrogen through the access port of the vapor line service valve and the hole in the vapor disc.

5.After the disc has been removed, burnish the external sur- faces and clean the internal surfaces of the vapor connec- tion and the vapor piping.

The vapor line can now be brazed to the vapor connection on the outdoor unit while maintaining the flow of dry nitrogen.

After the liquid and vapor lines have been installed, the system should be evacuated and charged.

EXTENDING THE SERVICE PORTS

(Refer to Fig. 5)

1.Loosen the screws that secure the service ports in shipping position.

2.Push the service ports through the corner post.

035-16192-001-A-1001

3.Tighten the screws to secure the service ports for installa- tion.

EVACUATING AND CHARGING

With the liquid and suction line service valves closed, connect a vacuum pump through a charging manifold to the access ports on both the liquid and suction line service valves.

NOTE: The vacuum pump connections should be short and no smaller than 3/8" O.D.

The refrigerant lines and the evaporator coil can now be evacu- ated to 500 Microns without disturbing the charge in the con- denser coil or the compressor.

After proper evacuation and dehydration, charge refrigerant through the access port on the liquid line service valve allowing the vacuum to draw in as much refrigerant as possible.

CAUTION: Do not charge liquid refrigerant through the com- pressor suction connection.

CAUTION: Do not attempt to start the compressor without at least 8 hours of crankcase heat or compressor damage will occur.

to continue charging refrigerant, open the liquid and the suction line service valves fully. Turn the stem of the liquid service valve clockwise 1/4 turn to open its access port for reading pressure.

Start the compressor (after 8 hours of crankcase heat), turn the stem of the suction line service valve clockwise 1/4 turn to open its service port and continue to charge refrigerant gas through this suction access port until you meet the conditions shown on the charging curve, Figures 7 through 15.

Open the liquid and vapor line service valves fully to close their access ports after the system has been charged.

BALANCE POINT SETTING

The balance point of a heat pump is the lowest temperature at which the refrigeration system can heat the building without any supplemental resistance heat.

The balance point is dependent upon -

1.The outdoor design temperature,

2.The building heat loss at the outdoor design temperature, and

3.The heating capacity of the system at the outdoor design temperature.

Unitary Products Group

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Contents General Installation InstructionReference InspectionTable of Contents Limitations InstallationLocation Rigging and HandlingPower and Control Wiring ClearancesCompressor Crankcase Heater Wire in Accordance with Local and National Electrical Codes Typical Field Wiring035-16192-001-A-1001 Unit Dim. Connection Connection Size Entry 15 TonOverhead Top1 Installation Service ValvesSuction Lines 1,2 Refrigerant PipingRefrigerant Line Charge Liquid LinesExtending the Service Ports Balance Point SettingEvacuating and Charging Alternate Charging Methods Extending the Service PortsSystem Sequence of Operation OperationCooling Operation VoltDefrost Cycle Heating OperationEmergency Heat Operation Operation below 0F Outdoor Tempera TureSTART-UP MaintenanceOddb Iddb 80 F 30070 F 60 F 80 F 70 F 035-16192-001-A-1001 Unitary Products Group Supersedes 035-16192-000

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.
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