Description Of The Product; General Description; Operation Principle; Main Components - Heatrae Sadia Multipoint ECO 30L V 3kW Installation, Operation And Maintenance Manual

4. Description of the product

4.1 General description

This appliance is a purpose designed unvented
water heater. The water heater has a stainless steel
inner vessel, which ensures an excellent standard of
corrosion resistance. The outer casing is a combination
of resilient thermoplastic mouldings and coated
corrosion proofed steel sheet. All products are insulated
with CFC free polyurethane foam to give good heat
loss protection.
The appliance is supplied complete with all the
necessary safety and control devices needed to
allow connection to the cold water mains. All these
components are preset and should not be tampered
with.

4.2 Operation principle

The appliance is used to heat and store hot water for
use in domestic & commercial applications.
The water is heated directly using a factory fitted
electric heating element and thermostatically controlled
by a SMART electronic thermostat.
This water heater is unvented, to provide pressure to
the tap or shower an unvented water heater uses the
incoming mains water pressure. To protect the water
heater from the risks of over pressure from the incoming
mains pressure and expansion of the heated water it
should be protected using the supplied water safety kit,
(See Figure 6, Page 11) for typical installation

4.3 Main components

See figure 3: Main components

4.4 Standard delivery

The delivery includes:
Water heater
`
Wall mounting brackets
`
Literature pack
`
Instructions
`
Warranty card
`
Cold water control pack
`
Expansion vessel (inc bracket)
`
Tundish
`
Pressure reducing valve
`
Expansion (Pressure) relief valve
`
Check valve
`
Compression nuts
`
Copper olives
`
Please check all components are supplied in the
pack and advise your supplier if any are missing.
8
5
6
Figure 3: Main components
Item
1 Temperature and Pressure Relief Valve
2 Thermostat adjustment
3
4 Wall Mounting Bracket (Lower)
5 Neon Indicator
6
Table 4: Main components table

4.5 Auto Pasteurisation

The appliance provides an automatic pasteurisation
feature. This feature will automatically heat the
internally stored hot water to 65°C once, then returns to
its previous mode of operation. This occurs if the stored
water remains below 60°C for greater than 21 days in
WARNING
The stored water temperature during
`
this function exceeds that which is
safe for hand wash requirements. If
the stored hot water is used for hand
washing then an appropriate water
tempering device must be fitted at the
point of use.
1
2
3
4
Description
Inlet
Outlet