What to do if Heatrae Sadia Water Heater discharges from T&P relief valve?
If your Heatrae Sadia Water Heater discharges from the T&P relief valve due to thermal control failure (CAUTION: Water will be very hot!), immediately switch off power to immersion heater(s) and shut down the boiler. Do not turn off the water supply. After the discharge stops, check all thermal controls and replace any that are faulty.
Why does my Heatrae Sadia Water Heater discharge water from the expansion valve?
Water discharge from the expansion valve of your Heatrae Sadia Water Heater can occur due to: * Intermittent discharge: The air volume in the product may have reduced (see Page 24 for re-charging of the air volume). * Continuous discharge: The cold water combination valve pressure reducer may not be working correctly, or the expansion valve seat may be damaged. Check the pressure from the cold water combination valve; if it's greater than 3bar, replace the pressure reducing valve cartridge. Remove the expansion valve cartridge and check the condition of the seat; if necessary, fit a new expansion valve.
How to fix no hot water flow in Heatrae Sadia Water Heater?
If there is no hot water flow from your Heatrae Sadia Water Heater, it could be due to several reasons: * The mains water supply might be off: Check and open the stop cock. * The strainer might be blocked: Turn off the water supply, remove the strainer, and clean it. * The cold water combination valve might be incorrectly fitted: Check and refit as required.
Why is the water from my Heatrae Sadia Water Heater milky?
The milky water from your Heatrae Sadia Water Heater is likely due to oxygenated water. Water from a pressurized system releases oxygen bubbles when flowing, causing a milky appearance that will disappear after a short while.
General| Product Type | Unvented Indirect Cylinder |
|---|---|
| Capacity | 145 liters |
| Diameter | 545 mm |
| Weight (empty) | 42 kg |
| Max Working Pressure | 3 bar |
| Energy Efficiency Rating | B |
| ErP Rating | B |
| Nominal Volume | 145 liters |
| Weight (full) | 187 kg |
| Immersion Heater | Yes |
| Warranty | 2 years |
Provides general instructions for the user and installer regarding the product.
Explains the various risk level symbols used throughout the manual to ensure user safety.
Lists and defines common abbreviations encountered in the document.
Outlines the responsibilities and liabilities of both the manufacturer and the installer.
Crucial warnings about the unvented nature of the cylinder and potential hazards.
Key recommendations for handling the unit and general safety practices.
Specific instructions regarding discharge, safety valves, and thermal cut-outs.
Comprehensive table detailing performance and dimensional data for various models.
Illustrates the physical dimensions and key connection points of the unit.
Step-by-step instructions for configuring the primary circulating pump.
Explains the different control modes available for the circulating pump.
Provides schematic diagrams for the electrical connections of the system.
Describes the construction and features of the unvented water heater.
Details how the unvented cylinder heats and stores hot water.
References diagrams for the main connections to the system.
Lists all components included in the product delivery package.
Instructions for proper storage and manual handling of the unit.
Lists the building regulations and legal requirements for proper installation.
Details necessary water supply and system component requirements.
Guidance on selecting a suitable and safe location for the cylinder.
General advice and boiler selection criteria for installation.
Instructions for making the necessary water connections, including T&P valve insulation.
Guidance on fitting the cold water control pack and its components.
Specifies requirements for the primary heating circuit control and connections.
Instructions for connecting a secondary circulation system if required.
Requirements for the discharge pipe from safety valves to the tundish.
Specifies the correct placement and installation of the tundish.
Details the requirements and sizing for the discharge pipe from the tundish.
Provides a worked example for calculating appropriate discharge pipe sizing.
Explains how system controls connect to the cylinder.
Guidance on installing programmers and room temperature sensors.
Detailed instructions on how to fill the system with water.
Important notes and warnings before starting the commissioning process.
A list of checks to perform before commencing final commissioning.
The procedure for commissioning the hot water system.
Specific steps for commissioning direct heating systems.
Specific steps for commissioning indirect heating systems.
General operational guidance, including Benchmark scheme details.
How to adjust and set temperatures for direct immersion heaters.
How to adjust and set temperatures for indirect heating controls.
Procedure for recharging the system's air volume to manage expansion.
Outlines the ongoing maintenance needs for safety and performance.
Instructions for periodically checking the safety valves.
Steps for cleaning the strainer element in the pressure reducing valve.
How to safely remove scale from immersion heater elements.
Steps to follow to re-commission the system after maintenance.
A chart identifying common faults, their causes, and remedies.
Information on how to identify and order necessary spare parts.
Step-by-step instructions for safely taking the unit out of service.
A detailed list of available spare parts with corresponding part numbers.
Explains the terms and conditions of the lifetime warranty.
Specific warranty terms for domestic property installations.
Specific warranty terms for non-domestic property installations.
Details the warranty periods for various accessories.
Provides telephone and email contact details for customer service.
A directory of companies where spare parts can be purchased.
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