Operation
First use (once water and electrical connections have
been made);
• Switch the power and water supply on.
The L.E.D. lights will flash to indicate start-up
sequence. The FILLING indicator will then
illuminate (white) and the boiler will begin to fill
with water.
• Once primed with water, the boiler will begin to
heat (HEATING indicator will illuminate to show
the water is being heated to the correct
temperature).
• When the correct temperature has been reached,
the HEATING lamp will go off and the green
READY indicator will illuminate.
• The boiler will then continue to heat/fill cycle until
the tank is at full capacity (during the heat/
fill cycle, small amounts of water are added to
ensure the water at the tap is always at the
correct temperature).
IMPORTANT NOTE: In normal daily use, the boiler
may be used as soon as the READY indicator comes
on, but on first install, wait 15 minutes before starting
to use.
Regular Daily Use
1) Switch on and wait for the green READY lamp
to illuminate. The boiler will then be at the correct
temperature and ready to use
2) Dispense water using the lever tap on the front
of the appliance (Safety Caution: Use with
caution as the boiler dispenses near-boiling
water)
Cleaning
The external surfaces of the machine can be kept
clean by wiping with a damp cloth.
A good quality stainless steel cleaner will keep the
machine in its original condition.
The plastic front facia may also be cleaned with a
damp cloth. Do not use abrasive material on the
outer surface of the machine.
Maintenance & Service
Information
NOTE: After initial commissioning or subsequent
re-commissioning (service-repair), check that
the water supply has been established prior to
switching on the boiler.
The appliance should be periodically checked for
scale build-up.
In hard water areas, the boiler should be descaled
on a regular basis to maintain efficient operation,
minimise energy consumption, and also retain water
quality. The frequency depends upon hardness of the
local mains water supply and whether or not it
is being treated by an effective scale reducer
(strongly recommended – see below).
PREVENTION IS BETTER: Rather than frequently
de-scaling the machine it may be preferable to install
an effective scale reducer or WRAS approved water
softener to the mains water supply. This will reduce
the frequency of de-scaling but may not remove scale
completely in some areas.
Multi-Filters (AQ35), spare parts and accessories are
available from Instanta Limited – Tel: 01704 501114
and ask for spares
Descaling:
To de-scale the machine;
1. Safety Caution: First disconnect machine
from the power supply
2. Drain all water off using the tap.
3. Remove tap
4. Remove the boiler-case (2 screws)
5. Drain the remaining water through the drain plug
in the bottom of the tank
6. Remove the tank-lid by unscrewing the fixing
screws. The tank is now accessible. Lift out the
baffle plates on the inside of the tank (taking note
of the position of the plates.
7. Remove as much loose scale as possible
by hand.
8. Dissolve any scale that is difficult to remove using
a suitable de-scaling solution. Remember to
replace the drain plug before using the de-scaler.
9. Clean the level sensing probes and their white
insulators completely, using a non-metallic
scourer.
10. Ensure all traces of de-scaler are removed by
flushing with copious amounts of fresh water, before
using the boiler again.
11. It is preferable to install an effective scale reducer
or water softener. This will reduce the frequency of
de-scaling but will not remove scale completely in
some areas.
Draw-off Tap:
The draw-off tap components are subject to wear
& tear. We strongly recommend that the tap is
inspected periodically (at least once a year as part
of a general maintenance routine). It is advisable to
keep a spare tap spring and tap washer in case of
emergencies.
Tap Spring - TP1007/N
Tap Washer - TP1001/L
Tap Bonnet - HSTP100
Upper Tap Assembly - XTP1050/A
Service/Technical Support
Tel: 01704 502911
To ensure your service enquiry is handled as efficiently
as possible, please have the following information
available;
• Brief description of problem
• Product Type (model)
• Serial Number (label on under-side of
boiler-case). This is essential.
Guarantee
Your boiler is guaranteed for 12 months from date
of installation.
Our guarantee includes on site labour and parts
for problems caused by fault of manufacture and
component failure with the following exclusions:
• Problems caused by hard water and lime
scale. We regret we cannot be held responsible
for problems caused by hard water
Service Warning & Fault
Diagnostics:
The boiler is fitted with an intelligent fault diagnosing
system and can detect certain fault conditions as
follows:
FILLING (Flashing): The white FILLING lamp flashes
to indicate water starvation - can be caused by either:
1) The boiler has not sensed a drop in temperature
after opening the cold water valve a number of times.
Most common cause is an interruption to the water
supply – check the stop valve and make sure there
are no kinks in the water supply hose. This can also
be caused by low mains water pressure. Shortly after
the water supply returns to normal, the message will
cease.
2) (Usually following initial commissioning or
subsequent re-commissioning after service/repair).
If once the boiler has been switched on, the circuit
has not sensed water on the bottom level sensor
within 6 minutes. Check that there is a water supply
to the boiler and make sure there are no kinks in the
hose or debris in the water inlet.
DE SCALE: The white DE-SCALE lamp will illuminate
to indicate that the lower sensing probe has become
scaled up. The boiler will continue to operate working
on the upper level sensor. De-scale as soon as
possible as described below.
RESET: The red RESET lamp will illuminate to
indicate that one of the two safety cut-outs have
activated:
Safety Controls:
The majority of possible faults have been covered
above. However, in certain circumstances, one of
two different safety controls within the boiler may
have activated;
1) Over-boil safety cut-out – activates if boiler
produces excess steam. This can be due to;
- lime-scale within the tank,
- a temporary interruption in the water supply.
- a faulty temperature sensor or internal
component (triac).
2) The Boil-dry safety cut-out – activates if the
boiler has been boiled dry, for example, due
to lime-scale build-up or water starvation.
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