
1. WELL WATER INSTALLATIONS
Due to the uctuation in water pressure when using on a well water system, users may experience uctuations in
water temperature. Fluctuations can be rectied with use of a water pressure regulator. When using a well system
withapumpswitchsetto40-60PSI,itisbesttosetyourwaterpressureregulatorat45PSI.Alternatively,ifusing
apumpswitchsetto30-50PSI,itisrecommendedtosetyourwaterpressureregulatorat35PSI.
2. BASEMENT INSTALLATIONS IN COLD WEATHER CLIMATES
e EZ Deluxe does not come provided with freeze protection. If exposed to freezing temperatures, the water
in the heat exchanger can freeze and can damage the pipework within the heat exchanger. When performing a
basementwallinstallation,itisrecommendedtoinstallonasub-frame(e.g2x4)tocreateaairbuerbetween
the wall and the back of the unit. is is to reduce risk of freezing through direct contact with basement walls.
Typically basement walls are poorly insulated & thus surface temperatures can be much colder than the ambient
room air.
3. MIXING VALVES
Modern mixing valves use a thermostatic temperature valve to control hot and cold water to faucets,
showerheads, and tub xtures. ese devices can oen cause an issue when used in conjunction with a tankless
waterheatersetatahightemperature.Whenwatertempissetabove110-120F,thesevalveswilladdcoldwater
to adjust the temperature to keep from scalding. An unwanted eect of this is that the hot water ow may drop
below required levels to keep the heater running. ere are a number of recommendations to reduce the risk:
a. Lower the water temperature setting on the water heater. Suggested settings of approx. 42C are ideal in
many scenarios.
b. Adjust the temperature setting on the mixing valve. (See manual for each individual xture.)
c. Replace showerhead with a high ow rate showerhead. It is common for a mixing valve xture used in
conjunction with a water saving showerhead to cause ignition issues with most tankless water heaters.
Be sure to use a showerhead with at least a 2GPM ow rate in conjunction with a mixing valve xture
to limit issues.
4. USE A SURGE PROTECTOR
e EZ Deluxe uses many sensors that are based on resistors. It is important to protect the electronics of the EZ
Deluxe system by plugging the units power cord into a surge protector.
4.1 SPECIAL NOTES - INSTALLATIONS
PAGE 08..EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL