Trane Complete Guide to Refrigerant Charge for TWE Systems
Page 16

Refrigerant Charge

GSSD Units Coupled with TWE Air Handlers

The GSSD IS coupled with the TWE- E series. Table 4 may be used to deter- mine the amount of charge necessary for the split unit system without any refrigerant line connecting the two. Table 5 can be used to determine the amount of refrigerant needed for lines. By adding the two weights together, the approximate total system charge can be obtained. For fine tuning the charge, see Units Coupled with Non-

TWE Air Handlers and Fine Tuning in next section.

Table 4: R22 Requirements

GSSD

TWE

Lbs of R22

Model

Model

for both

Number

Number

GSSD & TWE

GSSD024

TWE031E

5.0

 

 

 

GSSD030

TWE031E

5.0

 

 

 

GSSD036

TWE040E

8.25

 

 

 

GSSD042

TWE040E

9.25

 

 

 

GSSD048

TWE065E

9.25

 

 

 

GSSD060

TWE065E

10.125

 

 

 

GSSD072

TWE065E

10.75‘

 

 

 

Table 5: R22 requirement per foot of line

O.D. Tube

Liquid Line

Suction

Size

(oz.)

Line (oz.)

 

 

 

1/4-inch

0.352

N/A

 

 

 

3/8-inch

0.928

N/A

 

 

 

1/2-inch

1.152

0.032

 

 

 

5/8-inch

1.840

0.048

 

 

 

3/4-inch

4.272

0.064

 

 

 

7/8-inch

N/A

0.080

 

 

 

1 1/8-inch

N/A

0.144

 

 

 

Note:

If piping runs exceed 50 feet, the next highest pipe size should be used.

GSSD Units Coupled with Non-TWE Air Handlers and Fine Tuning

1.Place the GSSD system in the cooling mode.

2.Throttle down the water flow with a ball valve until the leaving fluid temperature is 95 degrees F.

3.Charge the system unit until a level of 10 degrees superheat is achieved. To determine super- heat, an accurate suction line temperature needs to be taken along with the suction pressure.

4.The sub-cooling will be approxi- mately 8 degrees to 5 degrees F.

5.Allow system to run 20 minutes for conditions to stabilize before measuring the super- heat.

6.Return water flow to 3 gpm per nominal ton of capacity.

16

Page 15 Page 17
Image 16
Page 15 Page 17
Contents WSHPC-IOM-2 Table of Contents Model Number Description GS S D 036 1 0 C 0 0 1 2 0 TGeneral Information Warranty Receiving and Handling Shipment PackagingInstallation-Location Considerations Water IN-1 Npti Front View Side View 048 214 060 244 072 277 Installation-Water Connections Location ConsiderationWater Connections Refrigeration ConnectionsInstallation- Electrical Field Wiring ConnectionsElectrical System Electrical DataPressure Switch Typical Wiring Diagram 230V 6A MAX to Watersource PumpInstallation Water Loop Loop Water ApplicationsGround Water Applications Open Loop Ground Water Applications Closed LoopRefrigerant Charge Gssd Units Coupled with TWE Air HandlersRefrigeration System Refrigeration SystemAccessory Items Miscellaneous Equipment

GSSD specifications

The Trane GSSD (Ground Source, Self-Contained Direct) is an advanced geothermal heat pump system designed to provide efficient heating and cooling solutions for residential and commercial applications. Leveraging innovative technology, the GSSD utilizes the earth's natural energy to deliver optimal indoor comfort while maintaining a low environmental footprint.

One of the main features of the Trane GSSD is its integrated design, which combines multiple components into a self-contained unit. This simplifies installation and reduces the complexity typically associated with traditional heating and cooling systems. The GSSD is available in various sizes and configurations, making it suitable for a wide range of applications, from single-family homes to large commercial buildings.

The GSSD employs a closed-loop geothermal system that circulates a fluid through underground pipes to exchange heat with the earth. This method allows the unit to draw heat from the ground in the winter and dissipate heat back into the earth during the summer months. The system operates using a heat pump, which efficiently transfers thermal energy, providing consistent indoor temperatures throughout the year.

Key technologies incorporated into the Trane GSSD include variable speed compressors, which enable the unit to adjust its output based on the heating or cooling demand of the space. This leads to improved energy efficiency and reduced operational costs. Additionally, the system employs advanced controls and smart technology that enable remote monitoring and adjustments, ensuring optimal performance at all times.

Another significant characteristic of the GSSD is its environmentally friendly operation. By utilizing renewable energy from the ground, the system significantly reduces greenhouse gas emissions compared to conventional fossil fuel systems. Furthermore, the GSSD is designed for quiet operation, minimizing noise pollution and enhancing occupant comfort.

In summary, the Trane GSSD represents a cutting-edge solution in the realm of geothermal heating and cooling systems. Its self-contained design, advanced technologies, and commitment to sustainability make it an ideal choice for those seeking energy-efficient climate control options. With its unique combination of features and capabilities, the GSSD meets the demands of modern applications while contributing to a greener future.
Top Page Image Contents