Do you need a pressure relief valve on a Titan electric water heater?
The manual for Titan electric water heaters, for example, does not require a pressure relief valve, except if your water supply piping is plastic. Here’s an excerpt from their manual:
How do you install a T & P valve on a water heater?
To install the discharge tube, run a strip of Teflon tape clockwise around the threaded end of the PVC discharge tube. Screw the discharge tube onto the T & P valve, first by hand, then tightening it fully with a wrench. Be careful not to strip or break off the T & P valve or discharge tube by tightening it too much.
How to install an instantaneous hot water heater?
Fit the unit onto a flat piece of wall, well away from any potential splashes of water or spray. Position the unit either upright or lengthways (diagram 1a/b), whichever is most convenient for plumbing and wiring, keeping the hot water pipe length to a minimum in order to save energy.
Do you need a pressure relief valve on a gas water heater?
So consult the manufacturer’s installation manual. Gas-fired tankless water heaters will usually require a pressure relief valve, while electric on-demand water heaters may not. The manufacturers typically only require a pressure relief valve, not the combination temperature and pressure relief valve that is necessary for tank-type water heaters.
Fit the unit onto a flat piece of wall, well away from any potential splashes of water or spray. Position the unit either upright or lengthways (diagram 1a/b), whichever is most convenient for plumbing and wiring, keeping the hot water pipe length to a minimum in order to save energy.
When to use a non return valve on a water heater?
USING AN EXPANSION KIT If it is not possible to accommodate the expansion in the system pipe work, it is then necessary to use an expansion vessel and non-return valve (Kit A). The discharge from relief valves must be made in a safe and conspicuous manner; therefore a tundish (Kit C) is available for 10 and 15 litre units if required.
How to install an electric water heater in Ariston?
Install Kit A + Kit C Install Kit A + Kit B + Kit C Kit C Recommended Install Kit A + Kit B + Kit C 5 USING FEED PIPE TO ACCOMMODATE EXPANSION Current Water Regulations and Byelaws permit unvented water heaters with capacity of 15 litres or less to accommodate the expansion of water that occurs during the heating cycle in the system pipe work.
When to use an expansion kit and pressure reducing valve?
USING AN EXPANSION KIT & PRESSURE REDUCING VALVE If it is not possible to accommodate the expansion in the system pipe work, it is then necessary to use an expansion vessel and non-return valve (Kit A). If the mains water pressure may exceed 3.5 bar a pressure reducing valve (Kit B) should also be installed.
