6.5Hot water supply

!

i

DANGER

NOTICE

Connection of the drinking water installation should be performed according to the national secondary drinking water regulations.

Do NOT use toxic chemicals, such as are used for boiler treatment in potable water heating systems used for space heating.

The sanitary water pipes can be connected to the installation by use of adapter fittings. The cold water inlet on the Combi boilers must be equiped with the following components (counted in the water flow direction):

Flow regulator valve (supplied), Safety group, Expansion vessel 87 PSI / 6bar (potable water, blue).

The 3/4" NPT adapter fitting with flow reducing valve must be fitted in the cold water connection.

A flow regulator valve is supplied with the boiler in a 3/4"NPT adapter fitting. The flow regulator valve ensures that a quantity of water is supplied which has a outlet temperature of 120°F (assuming a cold water temperature of 45°F). The quantity of water is virtually unaffected by the water pressure.

When there is a water pressure lower than 22PSI / 1.5 bar it is advisable to remove the inside mechanism of the flow reducing valve.

6.6 Condensate drain pipe

Installation & Servicing Instructions Rinnai E-Series

24

i i

i

i

NOTICE

NOTICE

NOTICE

NOTICE

This boiler produces condensate. Condensate must be drained otherwise the boiler will not function and can cause property damage.

The condensation drain pipe should be connected to a drain in the building by means of an open connection. By this means the possibility of drain gases effecting the boiler is prevented. The drain connection should have a minimum diameter of 1.3" / 32mm.

Install the condensation drain pipe according to the applicable rules and regulations.

If the condensate outlet of the boiler is lower than the public sewage system a condensate pump must be used.

The condensate produced by the boiler has a pH value between 3 and 4.

Install a neutralization unit if required by the local code. It is recommended, but not required to install a condensate neutralizer.

Do not drain the condensation water to the external rain gutter because of the danger of freezing and blockage of the drain.

Before putting the boiler into operation fill the condensate trap with 1.27 cups / 300 ml of water. If the boiler will be installed in a high temperature installation such as baseboard, then fill the condensate trap with mineral oil instead of water.

Use materials approved by the authority having jurisdiction. In absence of such authority, PVC and CPVC pipe must comply with ASTM D1785, F441 or D2665. Cement and primer must comply with ASTM D2564 or F493.

For Canada, use CSA or ULC certified PVC or CPVC pipe, fittings and cement.

Periodic cleaning of the condensate disposal system must be carried out. See the Rinnai Boiler Application Manual for further information and for a piping

diagram for the condensate.

Page 23 Page 25
Page 24
Image 24
Rinnai E110CP, E75CN, E110CN, E75CP user manual Hot water supply, Condensate drain pipe
Page 23 Page 25

E75CP, E110CN, E75CN, E110CP specifications

Rinnai is a leading name in the heating industry, recognized for producing highly efficient and reliable tankless water heaters. Among their popular models are the Rinnai E75CN, E75CP, E110CP, and E110CN, each designed to cater to various household needs and preferences.

The Rinnai E75CN and E75CP are both remarkable for their compact size and impressive heating capabilities. The E75CN is a natural gas model, while the E75CP runs on propane. These units are designed to deliver a maximum flow rate of up to 7.5 gallons per minute, ensuring that multiple fixtures can be used simultaneously without a dip in performance.

Both models incorporate advanced temperature control technology, allowing users to set their desired water temperature with precision. The units feature a durable heat exchanger, constructed from high-grade stainless steel, which not only promotes longevity but also helps in preventing corrosion. Additionally, they come with built-in safety features, such as freeze protection and an overheat cut-off system, ensuring safe operation in varying conditions.

Moving on to the Rinnai E110CP and E110CN, these tankless water heaters are designed for larger households with higher hot water demands. The E110CP operates on propane, while the E110CN utilizes natural gas. These units deliver a maximum flow rate of up to 11 gallons per minute, making them ideal for simultaneous use in multiple bathrooms, kitchens, and laundry rooms.

The E110 models showcase Rinnai's Smart Technology, which optimizes energy consumption by adjusting the heating output based on the demand. This not only maximizes efficiency but also significantly reduces energy costs. They are equipped with digital controls and diagnostics, providing users with real-time information and the ability to troubleshoot easily if any issues arise.

In terms of installation, all four models are designed for versatility. They can be installed indoors or outdoors, giving homeowners flexibility based on their space and preference. With their compact design, these units require less space compared to traditional tank heaters, making them a suitable choice for modern homes.

Overall, Rinnai's E75CN, E75CP, E110PC, and E110CN models represent cutting-edge technology in tankless water heating. Their efficiency, safety features, and advanced technology make them an excellent choice for homeowners looking to upgrade their hot water systems. With Rinnai, users can enjoy the convenience of continuous hot water without sacrificing energy efficiency.
Top Page Image Contents