2. PLANNING THE
INSTALLATION
All installation and maintenance work must be
carried out by competent persons
2.1 Water Requirements
The unit is designed to be connected to a cold water rising
mains supply, using 15mm Table 'X' copper tube. with a
minimum pressure of 20 KPa (0.2bar) and a maximum
pressure of 1000 KPa (50bar).
to the cold water mains
supplying the boiler. It is also recommended that an
isolating valve be fitted to the mains water supply to
facilitate maintenance.
The formation of scale in hard water areas is a problem
associated with all hot water appliances. Damage to the
boiler caused by excessive scale deposits is not covered
by the manufacturer's warranty.
So as to comply with the U.K. Water Supply Regulations a
single-check valve must be fitted
2.2 Electrical Requirements
The installation must comply with the current I.E.E. Wiring
regulations, if in doubt consult a qualified electrician.
This appliance must be earthed.
The boiler complies with the Electrical Equipment Safety
Regulations (SI1994/3260) and has been independently
tested to BS EN 60335-2-63 :.
The boiler operates a nominal 3 kW element at 240V.
50Hz. supply. A circuit diagram is provided on page 9.
2.3 Installation Location
To comply with recommendations from the health and
safety executive it is important that due consideration
be given to the safe operation of the controls of the
boiler. The boiler should therefore be mounted in such
a manner that the operator can stand directly facing
the machine with the controls at the recommended
height .
Consideration should also be given
to the servicing requirements of the machine.
S
Ensure
the type of wall construction and fixings are suitable
to support the working weight of the boiler
S
ee fig. 1
ee fig.3
2.4 Vent / Overflow Pipe Requirements
The vent and overflow pipe should be extended on site
using 15mm Speed-fit plastic tube or 15mm Table 'X'
copper tube. The pipe must be laid with a
,
discharging to a safe and visible position.
continuous fall
The vent and
overflow pipe should not be connected directly to a
soil pipe and should never be allowed to become
blocked or restricted .See fig 2
The height from floor
to draw off tap handle
should be /-
100mm
Fig 1
Model
Physical Dimensions
Weights (kg)
A
B
C
Dry
Working
5L
511
313
226
10
17
7.5L
582
368
251
13
24
10L
582
368
251
13
27
15L
623
401
274
15
35
All dimensions in mm
Fig 3
ü
û
Incorrect
Correct
ü
Correct
Vent and Overflow
Pipe-work should be fitted with a
continuous fall to a safe and visible point
of discharge (e.g. a sink).
It should not be
connected directly to a waste system
because taste and smell problems will
occur.
This installation allows the silicone hose to
fit loose inside a fixed fitting. Air is allowed
into the boiler at this point and will allow
the boiler to breath in the event of the
overflow becoming trapped.
Trapped water
prevents boiler
breathing
Fig 2.
Fig 4
Vent / Overflow
Solenoid water
inlet
Cable entry clamp
Issue 17
page 5
Issue 17
page 5
