AC ELWA
®
Installation and Operating, Version 1.0, Date 2016-01-23
3
Installation of AC ELWA
The installation must be carried out exclusively by the authorized personnel.
The hot water storage tank must be drained properly before installing the AC ELWA.
AC ELWA is designed for horizontal installation in hot water tank with 1 ½ inch thread. The unheated zone of
the built-in heating element is 90 mm from sealing surface. The length of the mounting socket must not
exceed 90 mm. The pre-assembled O-ring seal has to be used; it must not be treated with lubricants. The
plastic thread must not be sealed with hemp or other sealants.
During mounting you have to screw without any effort until the seal rests lightly. Make sure that the O-ring is
clean in the groove of the plastic part. Tighten the heater with a spanner nominal width 60 mm. The
tightening torque must not exceed 80 Nm.
In no case the heater may be tightened by turning the metal case!
If the device does not stand up straight (power cord down) after tightening, it can easily be turned to the left
or right for about 180 °.
Then tighten the 4 lock nuts of the mounting plate of the heater to fix the unit in its straight position:
When refilling the water tank ensure that the heating elements are completely surrounded by water.
Subsequently, the tank must be checked for leakage.
After mounting the supplied IP21 cover is to be attached!
