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Manual handling regulations and general safety advice for handling loads.
Guidance on positioning the cylinder, considering frost, stability, and access for maintenance.
Lists components supplied in the accessory kit for site fitting.
Details components pre-installed on the cylinder, such as immersion heaters and relief valves.
Specifies requirements for the cold water supply, including pressure and flow rates.
Explains the function of expansion vessels in managing water expansion.
Lists compatible heat sources and specifies non-compatible products like solid fuel boilers.
Guidance on placing the cylinder level on a stable surface with adequate access.
Instructions for draining the unit to prevent frost damage when not in use.
Details on connecting the cold water supply, including flushing and fitting components.
Instructions for connecting the hot water outlet pipe securely.
Optional connection for balanced cold water supply to showers or bidets.
Optional connection for a secondary hot water return line.
Requirements for installing the discharge pipe from safety devices to a safe location.
Details on the immersion heater as an auxiliary heater and its thermostat settings.
Explains the conditions under which the safety cut-out operates and how to reset it.
Troubleshooting steps for intermittent or slow water discharge from the tundish.
Identifies causes for continuous hot water discharge and recommended actions.
Guidance on the maintenance and checking of expansion vessels.
Details the procedures for servicing key components like relief valves and PRVs.
Identifies potential causes for lack of hot water flow and provides solutions.
Troubleshoots issues where hot water taps are not delivering hot water.
Addresses causes and solutions for intermittent water discharge from the tundish.
Diagnoses and resolves continuous water discharge issues.
Provides guidelines and requirements for alternative discharge pipe installations.
Provides detailed specifications for the appliance, including dimensions and capacity.
Lists the sizes and types of hydraulic connections for various parts of the appliance.
Details electrical supply, power, and thermostat specifications.
Specifies opening pressures for safety valves and thermostat cut-out temperatures.
Presents Energy-related Product (ErP) data including rating and heat loss.
Details the terms of the 2-year warranty, including what is covered and exclusions.
Outlines the mandatory conditions for the warranty to be valid, including installation requirements.
Lists specific faults and costs that are not covered by the product warranty.
The provided document is an installation manual for the PAW unvented hot water cylinders, specifically models PAW-TD20C1E5-UK, PAW-TD30C1E5-UK, and PAW-TD30C1E5HI-UK.
The PAW unvented hot water cylinder is designed to store and provide hot water for domestic use. It operates as an unvented system, meaning it is directly connected to the mains water supply and maintains mains pressure at the hot water outlets. The cylinder's energy efficiency, characterized by low standing heat losses, aims to reduce energy costs over its lifetime. It is compatible with thermostatically controlled heat pumps and boilers, utilizing a primary heat source to heat the stored water. An immersion heater is included as an auxiliary or emergency backup heating element. The system incorporates various safety features, including pressure reducing valves, expansion relief valves, and temperature and pressure relief valves, to ensure safe operation. It is not suitable for gravity-fed primary systems or non-thermostatically controlled heat sources like solid fuel boilers or wood-burning stoves.
The PAW unvented hot water cylinders come in two main capacities: 200 and 300 litres.
General