What to do if Santon Premier Plus 150 Water Heater discharges from T&P Relief Valve?
If your Santon Water Heater is discharging from the T&P Relief Valve, it could be due to thermal control failure, and the water will be very hot. Switch off power to immersion heater(s) and/or shut down the boiler. Do not turn off the water supply. After the discharge stops, check all thermal controls, and replace them if faulty.
What to do if Santon Premier Plus 150 Water Heater discharges from Expansion Valve?
If your Santon Water Heater is discharging from the Expansion Valve, it could be due to: * INTERMITTENTLY: The expansion vessel charge pressure has reduced below 3.5 bar. See the Maintenance section for the re-charging procedure. * CONTINUALLY: This could be due to a cold water combination valve pressure reducer not working correctly or an expansion valve seat damaged. * Check the pressure from the cold water combination valve. If it's greater than 3.6 bar, replace the pressure reducer cartridge. * Remove the expansion valve cartridge and check the condition of the seat. If necessary, fit a new expansion valve cartridge.
How to fix no hot water flow in Santon Premier Plus 150 Water Heater?
If there is no hot water flow from your Santon Water Heater, the possible causes and solutions are: * Mains supply off: Check and open the stock cock. * Strainer blocked: Turn off the water supply, remove the strainer, and clean it. * Cold water combination valve incorrectly fitted: Check and refit as required.
Why is my Santon Premier Plus 150 Water Heater water milky?
If the water from your Santon Water Heater appears milky, it is likely due to oxygenated water. Water from a pressurized system releases oxygen bubbles when flowing, causing the milkiness. This will disappear after a short while.
Why is water from hot taps cold in my Santon Premier Plus 150?
If the water from your hot taps is cold, several issues could be the cause: * The BACK UP immersion heater might not be switched on. Check and switch it on. * The BACK UP immersion heater thermal cut-out may have operated. Check and reset it by pushing the button. * For INDIRECT systems, the programmer might be set to Central Heating only. Check and set it to the Domestic Hot Water program. * For INDIRECT systems, the boiler might not be working. Check the boiler operation, and if a fault is suspected, consult the boiler manufacturer's instructions. * For INDIRECT systems, the thermal cut-out may have operated. Check and reset it by pushing the button on the cut-out. Also, check the operation of the indirect thermostat. * For INDIRECT systems, the motorized valve might not be ...
List of components supplied with the PremierPlus SystemFit unit for installation.
Guidance on vertically mounting the unit and selecting a suitable location.
Requirements for the cold water supply, pressure, and flow rate.
Details on connecting pipes, compression fittings, and thread types for the unit.
Recommendations for the cold water supply connection, including stopcock.
Information on the 3.5 bar pressure reducing valve and its placement.
Guidance on using the pressure relief valve for balanced cold water supply.
How to connect and support the expansion vessel to accommodate water expansion.
Placement and safety considerations for the tundish.
Building Regulation G3 requirements for conveying discharge safely.
Sizing and connection of discharge pipe D1 from safety devices to tundish.
Placement and fitting of the tundish according to regulations.
Requirements for discharge pipe D2 from tundish to termination point.
Criteria for selecting a compatible boiler for the PremierPlus SystemFit.
Importance and function of the indirect thermal cut-out and motorised valve.
Guidelines for electrical wiring by a competent electrician.
Connecting and setting up heating system controls via the wiring centre.
Procedure for filling the unit with water and checking connections.
Checks for leaks, strainer cleaning, and relief valve operation.
Filling, venting, and testing the indirect primary circuit and controls.
Essential maintenance tasks for unvented hot water systems.
Inspecting the cylinder internally via the immersion heater boss.
Manually operating relief valves to check for blockages.
Cleaning the strainer element for the pressure reducing valve.
Procedure for draining the unit and descaling immersion heaters.
Warnings about water discharge and tampering with safety valves.
Information about the Benchmark Scheme for installation and servicing.
Key points before servicing, including competent persons and spare parts.
Guide to identifying and rectifying operational faults and their causes.
Warning about tampering with safety valves invalidating the guarantee.
Warning about tampering with relief valves invalidating the guarantee.
Terms and conditions of the manufacturer's guarantee for the product.
General| Type | Unvented |
|---|---|
| Mounting | Vertical |
| Maximum Operating Pressure | 10 bar |
| Maximum Operating Temperature | 70°C |
| Heating Element Power | 3 kW |
| Cylinder Material | Duplex stainless steel |
| Anode Type | None required |
| Diameter | 550 mm |
| Insulation | CFC-free polyurethane |
| Warranty | 25 years on the cylinder |
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