Help is there anybody out there that can point me in the write direction for a wiring diagram for a cylinder safety zone valve, i am stuggling to find any diagrams on this, i find it hard to belive that this saftey valve system is hard to find as this is apparently very important to stop a pressurised cylinder blowing feebs 73. Wiring diagram for unvented cylinder. Y plan with unvented hot water cylinder this uses the 3 port valve as with a standard y plan, but adds a 2 port valve to stop flow to the hot water cylinder in the event of overheating an unvented cylinder is sealed under pressure, and overheating will cause the pressure inside to rise to dangerous levels.
wiring diagram for unvented cylinder
Cylinder ` before any work, switch off the mains supply to the appliance and the mains water supply ` do not switch on if there is a possibility that the water in the cylinder is frozen danger this cylinder is unvented and as such becomes pressurised when in operation the combination of pressurisation and hot water could lead to. I have replaced an vented cylinder with and unvented cylinder and am having difficulty replacing the single cylinder thermostat wiring with a dual thermostat. the original system is a drayton bi-flo control packs. the original wiring from the lwc1 wiring centre was: terminal 14 common went to c on the hts3 thermostat. The main cylinder is a purpose designed unvented water heater. the cylinder is a purpose designed unvented water heater. schematic wiring diagram - port mid position valve system. the megaflo eco unvented water heater can be fed directly from the cold water mains. figure 15- schematic wiring diagram - direct immersion heater with ..
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