Waiwela Mini TankWM-4.0 Installation And Operating Instruction Manual - page 6
Page 6
General Information Cont.
The WM-1.0, WM-2.5, WM-4.0 and WM-6.0 are designed to operate at 150 psi maximum water pressure.
Install a pressure reducing valve if your water pressure is greater than 80 psi.
Caution
:
The manufacturer cannot be responsible for the damage caused by improper installation or by
failure to follow instructions in this manual. Comply with the Installation Instructions before connecting to
electrical outlet.
Caution
:
The thermostat has been pre-set at the factory between 41°C (105°F) and 45°C (113°F).
Caution
:
H
ydrogen gas can be produced in a hot water system served by this heater that has not been
used for a long period of time (generally 2 weeks or more). Hydrogen gas is extremely flammable. To
reduce the risk of injury under these conditions, it is recommended that the hot water faucet be opened for
several minutes at the nearest and most distant sink being served by this water heater before using any
electrical appliance connected to the hot water system i.e. Dishwasher. If hydrogen gas is present, there
will probably be an unusual sound such as air escaping through the faucet as the water begins to flow.
There should be no smoking or open flame near the faucet at this time.
Warning
: Installer should review the contents of this manual with the owner upon completion of the
installation, and the manual should remain with the owner and placed in a location close to the water
heater.
Technical description
There are four WaiWela Mini tank models, a 1.0, 2.5, a 4.0 and a 6.0 gallon model. The pressure vessel
(water tank) is welded, glass lined steel and is equipped with an anode rod. The water heater is equipped
with a thermostat and a high limit temperature switch. A temperature pressure relief valve is supplied with
the unit.