ENVISION SERIES INSTALLATION MANUAL

Plumbing Installation

1.Inspect the dip tube in the water heater cold inlet for a check valve. If a check valve is present it must be removed or damage to the desuperheater circulator will occur.

2.Remove drain valve and fitting.

3.Thread the 3/4-inch NPT x 3-1/2-inch brass nipple into the water heater drain port.

4.Attach the center port of the 3/4-inch FPT tee to the opposite end of the brass nipple.

5.Attach the 1/2-inch copper to 3/4-inch NPT adaptor to the side of the tee closest to the unit.

6.Install the drain valve on the tee opposite the adaptor.

7.Run interconnecting tubing from the tee to DHW water out.

8.Cut the cold water “IN” line going to the water heater.

9.Insert the reducing solder tee in line with cold water “IN” line as shown.

10.Run interconnecting copper tubing between the unit DHW water “IN” and the tee (1/2-inch nominal). The recommended maximum distance is 50 feet.

11.To prevent air entrapment in the system, install a vent coupling at the highest point of the interconnecting lines.

12.Insulate all exposed surfaces of both connecting water lines with 3/8-inch wall closed cell insulation.

Note: All plumbing and piping connections must comply with local plumbing codes.

Desuperheater Startup

1.Close the drain valve to the water heater.

2.Open the cold water supply to the tank.

3.Open a hot water faucet in the building to bleed air from the system. Close when full.

4.Open the pressure relief valve to bleed any remaining air from the tank, then close.

5.If so equipped, unscrew the indicator plug 1 turn on the motor end of the pump until all air is purged from the pump, then tighten the plug. Use vent couplings to bleed air from the lines.

6.Carefully inspect all plumbing for water leaks and correct as required.

7.Before restoring electrical supply to the water heater, adjust the temperature setting on the tank.

•On tanks with both upper and lower elements, the lower element should be turned down to the lowest setting, approximately 100°F. The upper element should be adjusted to 120°F to 130°F. Depending upon the specific needs of the customer, you may want to adjust the upper element differently.

•On tanks with a single element, lower the thermostat setting to 120°F.

8.After the thermostat(s) is adjusted, replace the access cover and restore electrical supply to the water heater.

9.Make sure that any valves in the desuperheater water circulating circuit are open.

10.Turn on the unit to first stage heating.

11.The DHW pump should be running. When the pump is first started, open the inspection port 1 turn (if equipped) until water dribbles out, then replace. Allow the pump to run for at least five minutes to ensure that water has filled the circulator properly. Be sure the switch for the DHW pump (SW4) is “ON”. The DHW “OFF” LED on the unit should not be illuminated.

12.The temperature difference between the water entering and leaving the desuperheater should be 5°F to 15°F. The water flow should be approximately 0.4 GPM per ton of nominal cooling.

13.Allow the unit to heat water for 15 to 20 minutes to be sure operation is normal.

CAUTION: Never operate the DHW circulating pump while dry. If the unit is placed in operation before the desuperheater piping is connected, be sure that the pump switch is set to the OFF position.

14

Page 13 Page 15
Page 14
Image 14
Envision Peripherals Geothermal Indoor Split Heat Pumps installation manual Plumbing Installation, Desuperheater Startup
Page 13 Page 15

Geothermal Indoor Split Heat Pumps specifications

Envision Peripherals has established itself as a leader in the energy-efficient heating and cooling market with its advanced geothermal indoor split heat pumps. These systems are designed to utilize the earth's stable underground temperature as a renewable energy source, resulting in remarkable performance and sustainability.

One of the main features of Envision Peripherals geothermal indoor split heat pumps is their exceptional energy efficiency. With the ability to achieve a coefficient of performance (COP) exceeding 4.0, these heat pumps provide four units of heating or cooling for every unit of electricity consumed. This level of efficiency significantly reduces operational costs and lowers environmental impact, making them an ideal choice for eco-conscious consumers.

The technology employed in these systems emphasizes reliability and flexibility. The heat pumps are equipped with variable speed compressors, allowing them to adjust the heating and cooling output based on the current demands of the space. This results in consistent indoor temperatures and enhanced comfort. Moreover, the systems can seamlessly integrate with existing HVAC infrastructures, offering versatile installation options for residential and commercial applications.

Another characteristic that sets Envision Peripherals geothermal systems apart is their dual functionality. These units not only provide heating during the colder months but also excel in cooling during hot weather conditions. The geothermal heat pumps extract heat from the indoor air and transfer it to the ground, ensuring an efficient cooling process without the need for traditional air conditioning systems.

Durability and low maintenance are key aspects of Envision Peripherals heat pumps. Constructed with high-quality materials and advanced engineering, these systems are built to withstand varying environmental conditions. They feature a closed-loop system that minimizes wear and tear, reducing the frequency of repairs and providing homeowners and businesses with peace of mind.

In addition, Envision Peripherals emphasizes eco-friendliness. The use of renewable geothermal energy diminishes dependence on fossil fuels, contributing to a more sustainable living and working environment. Their commitment to sustainability aligns with global efforts to reduce greenhouse gas emissions and combat climate change.

In summary, Envision Peripherals geothermal indoor split heat pumps deliver exemplary energy efficiency, advanced technology, and a range of benefits, including dual functionality and reduced environmental impact. As the demand for sustainable heating and cooling solutions continues to grow, these systems represent a leading choice for consumers seeking comfort and energy savings.
Top Page Image Contents