Technical data

TECHNICAL AND INSTALLATION
3
2. CONSTRUCTION
Internal tank:
This tank is the heart of the assembly; it has to withstand the corrosive nature of mains water and the
temperature variations of stored water whilst working at high pressures. It is manufactured from solid
stainless steel and welded in an inert Argon atmosphere (Argon Arc). Before being assembled the tank
material is subjected to a rigorous cleaning and passivation process to increase its resistance to
corrosion. The inner tank is also corrugated which allows it to freely expand and contract with
temperature and pressure variations, shrugging off any lime scale deposits. Due to this, the tank does
not require an inspection cover to facilitate the removal of lime.
Insulation:
High density injected polyurethane foam – 50mm thick. Containing no CFC’s.
Jacket:
The tank is covered in a co-polymer polypropylene jacket, this is a plastic material that offers a high
resistance to impact and is also aesthetically pleasing.
Controls:
The tanks come complete with a control and high limit thermostat built into the top cover of the jacket.
Thermostat control:
The control is graduated from 1 to 5, 1 is minimum = 60°C and 5 is maximum = 90°C.
In the case of a prolonged absence precautions must be taken to ensure there is no risk of freezing.
The tank is delivered with the thermostat pre-set to a minimum of 65°C to eliminate the risk of legionella
bacteria forming and complies with the recommendations of the World Health Organisation. The
thermostat control dial can be removed to allow lower temperature settings, see sketch and description
below.
Modifying the IMIT thermostat:
1. Remove the control dial.
2. Take out the metal spring stop.
3. Replace the control dial.