Ecostrad iQ WiFi Instruction Manual page 8

4. Remove the cap from the inlet and push the heating element into the
radiator.
5. Tighten the element at the main nut, using a
size 22 spanner. Ensure the rubber O-ring,
above the main nut, makes a firm seal between
the radiator and the element. This prevents
leakage after installation.
NOTE - Never attempt to tighten the element
by twisting the control head or product housing.
Always use the correct tools as directed in the instructions.
6. If the radiator has been pre-filled by the manufacturer, skip to the next step.
If the radiator is yet to be filled, tilt the radiator so the next free filling cap is
at the highest point. Remove the cap and fill the radiator to 90% of its volume
with a suitable heating medium. This should be a glycol-based formulation
approved by the radiator manufacturer. Replace cap when done.
NOTE – It is critical that the correct volume of heating medium is used.
Underfilling the radiator will impede circulation and prevent the unit from
heating up. Overfilling the radiator can cause a dangerous build up of
pressure as the fluid heats up. A suitable air cushion must be maintained.
Calculating the volume of heating medium is a job for a professional
Ecostrad_iQ_WiFi_Element_V1.2_19072021
Air cushion:
10% of unit
volume at
room
temperature
8