Instanta WA2N Guide

The Professional’s Choice
WA Economy Range Models:
WA2N WA5N & WA10N
Auto-Fill, Wall-mount
Catering Water Boilers
Installation And User Instructions

CONTENTS
CONTENTS & INTRODUCTION 2
SAFETY INFORMATION 3
ENVIRONMENTAL INFORMATION & DELIVERY CHECKLIST 3
TECHNICAL SPECIFICATION 4
INSTALLATION 4 - 5
OPERATION 6
DAILY USE 6
CLEANING 6
MAINTENANCE, SPARES & SERVICE INFORMATION 6 - 7
SERVICE/TECHNICAL SUPPORT/GUARANTEE 7
SERVICE WARNINGS & FAULT DIAGNOSTICS 7 - 8
Introduction
Dear Customer,
Congratulations on the purchase of your
Instanta machine.
Your new water boiler is designed to give you
years of trouble-free service provided that the
instructions contained in this manual are followed.
All new series Instanta products are energy
efficient, simple to operate and easy to service.
Find out more about Instanta products at
www.instanta.com
Safety Information
Please read the following carefully
before switching on this appliance.
A competent installation engineer should install
this appliance in accordance with the installation
instructions for this appliance and all relevant local
and national standards including the following:
• Health and Safety at Works Act
• IEE regulations
• Local and national building regulations
• BS Codes of practice
• Water supply regulations
Your new water boiler is designed to provide
a constant source of near boiling water for the
preparation of hot drinks.
Caution Safety: All personnel must be provided
with sufficient and appropriate training in the safe
use of this appliance.
• In line with Health and Safety requirements we
recommend that a risk assessment be carried
out after the boiler has been installed.
• A warning notice displayed next to the machine
is often helpful in notifying users that the
appliance contains and dispenses near boiling
water.
• Inform users that certain surfaces will become
hot (especially the draw off tap). Care should
be taken to avoid potential injury from burns and
scalding whilst operating this appliance.
• The unit must be earthed
• Always disconnect the unit from the power
supply before servicing
• Keep these instructions in a safe place for future
reference
Environmental Information
(Information on Disposal for Users of Waste
Electrical & Electronic Equipment)
The “crossed out wheelie bin” symbol on this product
means that discarded electrical and electronic
products should not be mixed with general waste.
Disposing of the product correctly will help to save
valuable resources and prevent any potential negative
effects on human health and the environment
which could otherwise arise from inappropriate
waste handling. For proper treatment, recovery and
recycling of end-of-life products, please contact
your dealer or supplier for further information, or
local authority for details of your nearest designated
collection point.
Checklist
Before starting installation, check that you have the
following parts;
1. Boiler Unit
2. Tap Kit
3. Paper mounting template
4. Fitting kit (screws & wall-plugs etc.)
5. Instruction Booklet
2 3

Installation [All Models]
a) POSITIONING THE UNIT
The heater should be positioned in a convenient
place, on a wall that is capable of supporting it safely
(refer to table above for weight of boiler). Use the
mounting template and fitting kit provided.
Position the boiler so that the tap is approximately
400mm above a draining board. Leave sufficient
space around the unit to enable access for servicing,
paying particular attention to the position of the top-
centre fixing screw that holds the case in place.
When mounting on wall…screw in the top two
screws leaving about 6mm protruding and hang the
machine using the keyhole slots provided. Once the
machine is positioned, tighten the top screws and
insert the bottom screw.
b) ELECTRICAL CONNECTION
The circuit should be protected by its own 13amp
double-pole connection unit with flex outlet to
BS5733, alternatively the circuit should have a means
of disconnection incorporated in fixed wiring, having a
contact separation of at least 3mm in all poles.
Minimum cable size is 1.5mm2. The use of an ELCB
is recommended.
• WARNING: This appliance must be earthed.
• Electrical installation should conform to current
I.E.E. wiring regulations.
• When using fixed wiring, the bare section of earth
must be sleeved to within 8mm of the end.
• Only a qualified electrician should carry out
this work.
BASE ENTRY OF CABLE: Use the cable gland.
Loosen cable-gripping nut and pass cable through
gland, leaving enough free cable to connect to
terminal block. Tighten cable gland grip nut.
Alternative Rear Entry Installation (Electrical):
The fixed or flexible cable is connected direct to the
terminal block – the cable gland is not utilised.
DO NOT SWITCH ON UNTIL THE INSTALLATION
IS COMPLETE AND THE CASE AND TAP ARE IN
PLACE
c) WATER CONNECTION
NOTE: Although it will not harm the boiler, it should
not be operated with the water supply turned off.
Model WA2N WA5N WA10N
Width mm 254 290 340
Depth mm 187 205 247
Height mm 428 432 480
Voltage & Supply V230, AC (50Hz) 230, AC (50Hz) 230, AC (50Hz)
Power Rating kW 2.0 single-phase 3.0 single-phase 3.0 single-phase
Fill Type Automatic Automatic Automatic
Rapid Draw Off Litres 2.5 5 10
Weight (empty) KG 6.5 7.5 9.7
Weight (full) KG 10.5 14.7 22.7
Water Inlet
Pressure Bar 2 to 7 2 to 7 bar 2 to 7 bar
Technical Information
Outer casing and tank are constructed in type-304 and type-316 grade stainless steel. The tank is fully
insulated with high-temperature polystyrene.
The appliance has electronic control of the main functions. This means that the heating, filling and temperature
are controlled precisely within given parameters.
The water supply must have a pressure not
exceeding 7 bar and no lower than 2 bar. If the
mains water pressure is below 2 bar a fault
situation could arise.
If the water pressure exceeds 7 bar a suitable water
pressure reducing valve will need to be fitted to the
water supply to bring it to a level that the machine
can cope with. Failure to do so could result in the
boiler overfilling.
THE MANUFACTURERS CANNOT BE HELD
RESPONSIBLE FOR ANY MACHINE MALFUNCTION
IF THE WATER PRESSURE IS NOT WITHIN THE
RANGE STATED. IF IN DOUBT, CONSULT YOUR
WATER SUPPLY COMPANY.
• Connect to a suitable cold water drinking
supply using 15mm copper pipe and using “T”
piece supplied.
• Push the “T” piece firmly onto the water inlet
solenoid pipe with the brass plug facing forward
(Note: the “T” has been blanked off using a brass
plug – leave the plug in-place).
• Push the 15mm cold water supply firmly into the
bottom of the fitting.
Alternative Rear Entry Installation (Water
Connection): Remove the brass plug from “T” piece
and re-fit into the bottom of the “T” piece instead.
Push firmly onto the inlet solenoid pipe with the “T”
facing the wall. Push the 15mm cold water supply
firmly into the “T” fitting.
NOTE: To avoid damage to the appliance, do not use
any solder connections whilst pipes are connected to
the boiler.
• A 15mm stop valve must be fitted between the
water supply and the boiler so that it can be
isolated.
• Water purification filters are available from
Instanta to ensure fresh tasting water. In hard
water areas, scale can cause problems.
Fitting a scale reducer will help minimise scale
but will not eliminate scale completely.
WE REGRET THAT INSTANTA CANNOT BE HELD
RESPONSIBLE FOR SCALE RELATED PROBLEMS
IF A SCALE REDUCER HAS BEEN INSTALLED
d) OVERFLOW/DRAIN
The fitting kit includes a 15mm, straight push-
fit coupling with a small piece of 15mm copper
pipe pushed into it. This connector must be
pushed onto the corresponding brass overflow
connection on the services-bracket (along side
the solenoid).
If the overflow is to be extended, remove the copper
pipe (supplied) and replace with 15mm pipe of your
chosen length. The pipe must have a continuous fall
and should not be longer than 300mm (if a longer run
is required, use 22mm pipe to avoid airlocks.
The overflow pipe should have no more than four
right angle bends and should discharge to a safe,
visible position.
Alternative Rear Entry Installation (Overflow/Drain):
If rear entry has been chosen, the straight push-on
coupling must be replaced with a 15mm push-fit
elbow (available from plumber’s merchants).
Push the elbow onto the brass overflow connection
on the services-bracket (alongside the solenoid).
As described above, the pipe must have a
continuous fall etc.
Under certain conditions the overflow pipe
could vent steam, hot water or cold water and
the manufacturers cannot be held responsible
should damage occur from such discharge if the
overflow pipe has not been directed to a suitable
position where overflowing water can run away
safely.
VENT PIPE:
A small silicone rubber tube connects the tank-lid to
the back panel. Ensure this is connected (and hasn’t
come off in transit) and that the outlet fitting in the
back-panel is not obstructed.
e) FITTING CASE
• Attach the Earth wire connection to bottom of
stainless steel boiler-case using M4 screw &
washer supplied.
• Offer up the case to the wall-mounted boiler and
plug-in communications-lead (from circuit board
to the LED light display) located on inside of
boiler-case.
• With the communications lead and Earth wire
connected, locate the boiler case onto the wall-
mounted boiler assembly. Secure case in position
using M4 screw (supplied) at top and bottom of
the case.
• Ensure yellow rubber sealing washer is in place
then carefully screw in the tap assembly (use a
28mm open-ended spanner to tighten). Do not
use grips that are likely to scratch the chrome.
• Push the grey tap collar firmly into place and
twist to snugly fit against the plastic front panel.
4 5

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: [phone]
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: [phone]
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.
6 7

INSTANTA LIMITED
Canning Road Southport Merseyside PR9 7SN
Tel: [phone] Fax: [phone]
IB27 - ISS:02 FM 36413 EMS 75807
To reset boiler safety controls;
Safety Caution: Isolate boiler from power supply
before proceeding:
• Isolate from mains electrical power supply and
open tap to drain boiler down.
• Remove draw-off tap (28mm spanner) and outer
case (2 screws top & bottom).
• Over-Boil Safety: Push the small reset button in
the centre of the safety cut-out switch (located
next to the water inlet valve).
• Boil-dry Safety: Push the small reset button
in the centre of the heating element (located
left-side of tank).
In any of these events the indicator lamp will flash red
or green or red and green. If the problem reoccurs
contact the Instanta Service Department –
01704 502911
• Dripping Taps. These components are subject to
wear & tear but in the event of a tap failing
within 12 months of installation, we will be
pleased to replace the tap assembly by post.
Fitting is very simple and requires no tools.
An engineer call out is not necessary.
• Accidental damage, misuse or use not in
accordance with these instructions and damage
caused by incorrect installation.
The manufacturer disclaims any liability for incidental,
or consequential damages.