Installation

Water Heater Hook-up (option) Instructions for connection from the desuperheater (option) water-in/out to the domestic hot water heater may be found in WSHPC-IN-4 or 72-9006-02. This water heater kit (Figure 8) ships in all units with the desuperheater op- tion. The kit is zip tied to the compres- sor base; and consists of piping connections and shut-off valve.

For units containing the desuperheat- er option, the desuperheater pump fuse is located within a container in- side of the control box. The fuse is not factory installed.

Note: If the fuse is installed, and the unit is started without water in the sys- tem, pump damage may occur.

Using Antifreeze

In areas of the country where entering water temperatures drop below 45°F or where piping is being run through areas subject to freezing, the loop must be freeze protected by using an approved antifreeze solution to pre- vent the earth loop water from freez- ing inside the heat exchanger. Methanol and glycols are the most commonly used antifreeze solutions. Consult your geothermal unit supplier for locally approved solutions in your area.

Propylene glycol is not recommended in installations where the water tem- perature are expected to fall below 30°F. At extreme temperatures, the viscosity increases to the point where normal loop circulating pumps may not maintain proper flow.

If propylene glycol is the only locally approved solution for anti-freeze, good engineering practices should be used to achieve the desired flow.

Calculate the approximate volume of water in the system by using the re- quirements detailed in Table 2. Add three gallons to this total to allow for the water contained in the hose kit and geothermal unit.

Figure 8: Water heater kit

Table 2: Antifreeze requirements based on volume

 

 

 

 

 

 

Type of Antifreeze

 

Minimum Temperature for Freeze Protection

 

 

 

 

10°F

 

15°F

 

20°F

 

25°F

 

30°F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Methanol

 

25%

 

21%

 

16%

 

10%

 

3%

 

Propylene Glycol

 

-

 

-

 

-

 

-

 

6%

 

 

 

 

 

 

 

 

 

 

 

 

14

WSHP-SVX02A-EN

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Trane GSWD, EXWA, WPWD manual Using Antifreeze, Water heater kit
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GSWD, WPWD, EXWA specifications

Trane is a leading provider of heating, ventilation, and air conditioning (HVAC) systems, and their GSWD, WPWD, and EXWA series are some of the most innovative and efficient products available in the market. These product lines are designed to meet diverse HVAC needs by offering distinctive features, cutting-edge technologies, and remarkable performance characteristics.

The Trane GSWD series is known for its robust design and versatility, making it ideal for various commercial applications. One of the standout features of GSWD units is their modular design, which allows for easy installation and scalability. They are equipped with high-efficiency compressors that contribute to energy savings while ensuring optimal cooling performance. The GSWD series also includes advanced control systems, which enable precise temperature management and system monitoring, leading to improved comfort and reduced operating costs.

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In summary, the Trane GSWD, WPWD, and EXWA series provide innovative HVAC solutions characterized by energy efficiency, advanced technology, and user-friendly features. Their unique designs cater to various applications, ensuring that they meet modern building requirements while being environmentally responsible and cost-effective. Trane continues to lead the way in HVAC technology, setting benchmarks for performance, reliability, and sustainability in the industry.
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