Optional Wall Switch GWMS2 | Desa VMH26PR specification

OWNER’S MANUAL

INSTALLATION

Continued

6.Connect one bare wire end to each ter- minal (“W” and “R”) of the thermostat base (see Figure 34).

7.Install the base onto the wall with the provided screws.

8.Move the temperature adjustment back and forth to insure the bimetal is free from restrictions.

9.Replace the cover onto the base. (Upon installation, the thermostat must be al- lowed to stabilize at room temperature for a minimum of 30 minutes for proper operation).

10.Set switch on heater to Auto position.

11.Set the temperature adjustment to the desired setting. This thermostat has been electronically calibrated at the factory. No adjustment or leveling is necessary.

Terminal "W"

Terminal "R"

Figure 34 - Thermostat Base Terminals "W" and "R"

OPTIONAL WALL SWITCH - GWMS2

WARNING: Read and follow installation instructions. Instal- lation should be done by a quali- fied installer familiar with low- voltage wiring procedures.

WARNING: Do not connect this switch to any electrical source! Electrical shock and/or fire hazard will occur.

1.	Connect one terminal of 25 ft. wire to
	bottom contact of switch (see Figure 32).
2.	Connect remaining wire terminal to the
	“TH” terminal on the control valve.
	Make sure that wire terminals are in
	the positions on your unit as pictured
	in Figure 32. If wires are not “crossed”
	the thermostat will not work.
3.	Route the 25 ft. wire to a convenient
	location to mount your wall switch (no

Switch on Gas	Control
Heater	Valve
AUTO
OFF
ON	To Wall
One	To Wall
terminal of	Thermostat
25 ft. wire	or Switch

Figure 32 - Connecting Wire Terminals

Feed wires through rectangular slots

To Wall Thermostat or Switch

outside walls).

WARNING: Do not connect the switch to a power source. Electrical shock and/or fire haz- ard will occur.

IMPORTANT: The wire may be shortened but must not be lengthened.

4.Connect one bare wire end to each of the terminals of the provided wall switch.

5.Install the wall switch and cover in the wall.

Figure 33 - Back View of Thermostat Base

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VMH26PR specifications

Desa VMH26PR is a cutting-edge horizontal multistage pump designed for a variety of applications, primarily in industrial and municipal sectors. Its robust construction delivers excellent performance and reliability, making it a preferred choice for demanding environments.

One of the primary features of the VMH26PR is its versatile design. Engineered for efficiency, it is capable of handling a wide range of fluids, including clean water, chemicals, and other industrial liquids. This pump is particularly known for its ability to operate under high-pressure conditions while maintaining a low energy consumption rate, which is a significant advantage in terms of operational costs.

The VMH26PR incorporates advanced hydraulic technologies, which enhance both performance and efficiency. The multistage configuration allows for higher pressure generation, making it ideal for applications that require elevated discharge pressures. Each stage is meticulously designed to optimize flow, reducing turbulence and maximizing throughput. This results in improved overall system efficiency and longevity of the pump.

In terms of materials, the VMH26PR offers various casing options tailored to the specific needs of the application, including stainless steel and cast iron. These materials provide excellent resistance to corrosion and wear, ensuring durability even in harsh environments. Additionally, the pump features mechanical seals designed to minimize leakage and enhance reliability.

Another significant technological aspect of the VMH26PR is its modular design. This allows for easy maintenance and component replacement, reducing downtime and service costs. Users can easily access vital parts without disassembling the entire unit, which is a considerable advantage for operation in critical settings.

Moreover, the Desa VMH26PR is equipped with a range of monitoring and control options, enabling seamless integration into automated processes. This feature enhances operational efficiency, allowing operators to monitor performance parameters in real-time and make data-driven decisions to optimize performance.

Overall, the Desa VMH26PR stands out with its combination of efficiency, durability, and ease of maintenance, making it an ideal solution for various fluid handling tasks across different industries. Its ability to adapt to specific requirements and conditions ensures it will meet the diverse needs of modern applications effectively.