Description Of The Product; General Description; Operation Principle; Main Components - Heatrae Sadia Multipoint ECO 100L 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
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 it will return to its
previous mode of operation. This occurs if the stored water
remains below 60°C for greater than 21 days in any mode.
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.
Description
Inlet
Neon Indicator
Outlet
1
2
3
4