Comprehensive Installation Instructions for Rinnai Infinity Water Heaters

INSTALLATION INSTRUCTIONS - CONNECTIONS

Water Supply.

Where the water supply pressure exceeds 12 bar, an approved pressure reducing device is required at the inlet of the appliance. To achieve the rated flow a minimum water supply pressure of 1.4 bar is required at the appliance inlet. The unit will operate at lower supply pressures but the rated flow will not be achieved. Contact Rinnai for 'gravity fed' or 'low pressure' hot water installations.

Water pipe sizing and layout should be designed correctly to ensure the given water flows from the appliance are available. All hot water pipework should be insulated to optimise maximum performance and energy efficiency.

Water Connection.

Connect the hot and cold water supply pipes. An approved isolation valve and strainer MUST be installed in the cold water inlet pipe. An approved isolation valve should be installed in the hot water outlet pipe. There must be a union or release fitting on the heater side of the isolation valves. A non return valve is not required unless dictated by local regulations. A pressure relief valve should be installed in the pipework to discharge safely into a suitable drain when the system has a flow and return, or tank.

Positions of the cold water inlet, hot water outlet and gas connections are shown on page 11. All connections are ¾ inch BSP. This is NOT an indication of the pipe sizes required.

If the heater is in a hard water area a suitable water conditioning device should be in- stalled to prevent the build up of limescale within the heat exchanger. Heat exchangers damaged by scaling are not covered by the manufacturers guarantee. Guidelines are given below. If the local water exceeds these values the heater must be protected.

Description	pH	Total Dissolved	Total Hardness	Chlorides	Magnesium	Calcium	Sodium	Iron
		Solids (TDS)
Maximum Recommended	6.5 - 9.0	600 mg/litre	200 mg/litre	300 mg/litre	10 mg/litre	20 mg/litre	150 mg/litre	1 mg/litre
Levels	6.5 - 9.0	600 mg/litre	200 mg/litre	300 mg/litre	10 mg/litre	20 mg/litre	150 mg/litre	1 mg/litre
Levels

Gas Connection

Check pipe sizing required for the heater input. The heat input for the Infinity 26i and HD50i is 54 kW. Refer to BS6891 (Natural Gas) and BS5482 (Propane) for guidance on correct pipe sizing calculation.

Check that the size of the gas meter and pipework will be sufficient for all appliances on the main. Sufficient gas must be available at the appliance if correct operation is to be expected. An approved gas isolation valve must be fitted at the gas inlet. A union or release fitting should be installed after the isolation valve.

Electrical Connection.

The appliance must be earthed. The appliance is suitable for 230VAC – 50Hz mains only and all wiring must be carried out to the I.E.E regulations latest edition. The heater electrical supply must be provided with a fused (3A) local isolator with a contact separation of 3mm minimum on all poles for servicing. Observe polarity and ensure that wiring is correctly restrained.

26i, HD50i specifications

The Rinnai 26i and HD50i are two high-efficiency heating solutions designed to meet modern demands for comfort, convenience, and energy saving. These units are ideal for residential heating applications, delivering reliable warmth while also being mindful of environmental impacts and energy consumption.

The Rinnai 26i is a wall-mounted unit that offers exceptional performance and efficiency. With a compact design, it is perfect for both small and large spaces, making it versatile in various settings. One of the standout features of the 26i is its ability to provide continuous hot water and space heating simultaneously, making it exceptionally convenient for homeowners. The advanced modulation technology allows the unit to adjust its heating output based on demand, ensuring optimal comfort without excessive energy use.

Another notable aspect of the Rinnai 26i is its intelligent control system, which includes a user-friendly digital display and programmable thermostat. This allows homeowners to customize their heating schedules and maintain their preferred temperature with ease. Additionally, the unit is equipped with a range of safety features, including anti-frost protection, ensuring safe operation even in extreme weather conditions.

On the other hand, the Rinnai HD50i is designed for larger spaces and offers an impressive heat output. This gas heater features a stylish design, blending seamlessly with modern home aesthetics. The HD50i utilizes Rinnai's innovative convection technology, which effectively warms the room by circulating heated air, providing consistent comfort throughout the space.

The HD50i is also equipped with advanced airflow management systems that minimize hot and cold spots, ensuring even distribution of heat across various rooms. Both the 26i and HD50i models come with energy-efficient ratings that help reduce utility bills while lowering carbon footprints.

Ease of installation and maintenance is another advantage of both units; they are designed for straightforward setup and come with clear guidelines for servicing. This focus on user experience makes Rinnai heating systems a popular choice among homeowners.

In summary, the Rinnai 26i and HD50i represent the culmination of innovative heating technology, efficiency, and aesthetics. With their advanced features, environmental consideration, and user-friendly operation, these units stand out as top choices for efficient home heating solutions. Whether for a compact apartment or a spacious home, Rinnai provides versatile and reliable options for creating a warm, comfortable living environment.