Ventilation, Electrical Supply, Pressure Gauge

If the boiler is to be placed in a cupboard this cupboard should not be used as a storage cupboard. Ventilation should be provided as detailed below.

Ventilation

This boiler does not require a purpose provided air ventilation in the room, however it does require room air to circulate through the boiler to ensure the convection heat output performance is maintained.

If the boiler is installed in an enclosure or small cupboard, there must be an equivalent ventilation free area in the enclosure or small cupboard to that of the boiler.

Upper Ventilation Free Area	These should be the same or larger than in the
	appliance case mm2
Lower Ventilation Free Area	As above

Electrical Supply

This appliance must be earthed

The appliance is supplied with a 2 m electrical flex with integral fused plug, which requires a standard 220 - 240V ~ 50Hz supply via a normal ring main socket. If required, the plug connection can be made via the 24 hour plug in timer supplied.

All fuses must be ASTA approved to BS 1362

In the event of an electrical fault after installation of the boiler, preliminary electrical system checks must be carried out. i.e. earth continuity, short circuit, polarity and resistance to earth.

Central Heating Systems

This boiler is designed specifically for use in small, pressurised, sealed system installations. The installation must comply with BS 6798.

Safety Valve – The safety valve, which is pre-set at a maximum of 3 bar is an integral part of the boiler and cannot be adjusted. Its relief outlet must be piped to a suitable outside position.

Pressure Gauge

This indicates the system fill pressure. It will show a higher pressure when the system is hot.

Circulating Pump

The circulating pump is located inside the boiler case. Its performance is suitable for all systems to which the boiler should be connected.

Expansion Vessel

The expansion vessel, which is located inside the boiler case, has a capacity of 2.0 L, with a pre -charge of 0.5 bar.

The maximum heating system water content using this integral expansion vessel is 24.0 L. This is with a cold fill of 0.5 bar.

Should the system volume be in excess of that specified, a second expansion vessel must be connected to the heating system. BS 5449 gives further guidance for expansion vessel sizing.

Vessel Charge and Initial System Fill Pressure	Bar	0.5	1.0	1.5
For Expansion Vessel Capacity
(Multiply the system Volume by)		0.0833	0.109	0.156
Total system water capacity using the integral
2.0 L expansion vessel	Litres	25.0	18.4	12.8

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LP330, L318 specifications

The Redring LP330 and L318 are both innovative water heaters designed to provide immediate and efficient hot water solutions for residential and commercial use. Redring has established a reputation for quality and reliability in the water heating industry, and these models showcase the company's commitment to technological advancement and consumer needs.

The Redring LP330 is a compact under-sink water heater that offers an impressive capacity of 30 liters. This model is tailored for kitchens and bathrooms where space is a premium. One of its standout features is the adjustable thermostat, allowing users to set the desired water temperature for optimal comfort and safety. Additionally, the LP330 incorporates a rapid heating element, which ensures that hot water is available almost instantly, minimizing wait times.

On the other hand, the Redring L318 is a larger option, boasting an 18-liter capacity. It is ideal for larger households or small commercial environments, where the demand for hot water is higher. This model also features a high-quality insulated tank, which helps to maintain water temperature, reducing energy consumption and operational costs over time. Both models are equipped with a thermal cut-off feature, providing an essential safety mechanism that prevents the unit from overheating and ensures long-term reliability.

Technologically advanced, both the LP330 and L318 utilize advanced heating elements that are designed for efficient energy usage. This not only contributes to a reduced carbon footprint but also translates into lower energy bills for consumers. Furthermore, these models are designed with an easy-to-use interface, making adjustments and monitoring straightforward, even for those who may not be technically inclined.

Another key characteristic of both models is their ease of installation. Designed for quick setup, they are compatible with various plumbing configurations, making them suitable for a wide range of applications. Their robust construction ensures durability, promising longevity even under high demand.

In summary, the Redring LP330 and L318 represent the pinnacle of hot water technology, balancing efficiency, safety, and ease of use. Whether for residential or commercial purposes, these models provide reliable solutions, ensuring users have access to hot water when needed the most, all while contributing to energy conservation efforts.