Calomax ECLIPSE HT3C10, ECLIPSE HT3C20, ECLIPSE HT6C20 Installation, Operation And Servicing Instructions

INSTALLATION, OPERATION AND SERVICING INSTRUCTIONS

FOR THE ECLIPSE HT3C10, HT3C20 and HT6C20 WATER BOILERS

Please read these
instructions carefully
before operating your
boiler for the first time

Issue 1

08/08/2018

Calomax Limited

Lupton Avenue, Leeds LS9 7DD

Tel. [phone] Fax. [phone]

e-mail: [e-mail] www.calomax.co.uk

CONTENTS

INTRODUCTION 3

CHECK LIST 3

APPROVALS 3/4

CONSTRUCTION 4

INSTALLATION AND MAINTENANCE 4

LOCATION 4

COLD WATER INLET 5

ACCESS INSTRUCTIONS 5/6

VENT / OVERFLOW 6/7

ELECTRICAL CONNECTIONS 8

USER INSTRUCTIONS 8/9

SCALE 9

CLEANING 9

GENERAL OPERATION 10/11

TROUBLE SHOOTING 12

ACCESSORIES 13

SPARE PARTS 14/15

EXPLODED DIAGRAM 16/17/18/19/20/21

SERVICE INSTRUCTIONS 22/23

GENERAL FUNCTION 24

WIRING DIAGRAMS 25/26

WARRANTY 27

PRODUCT SPECIFICATION 28

PAGE

Page 2

INTRODUCTION

Thank you for purchasing a boiler from the Calomax Eclipse range.
All our products are designed to give years of simple, reliable operation.
To ensure this, it is important that the installation and subsequent
servicing and maintenance is carried out by a suitably qualified engineer
in accordance with these instructions.
For assistance in finding a suitable engineer in your area, visit our
website www.calomax.co.uk, contact our service department on
0113 249 6681 or e-mail: [e-mail]

CHECK LIST

This product conforms to the CE marking directive
93/68/EEC through compliance with the following
standards:

- Electromagnetic Compatibility Directive

- Low Voltage Directive 73/23/EEC in accordance
with:

- BS EN 60335-2-75: 2004+A2: 2008

- BS EN 60335-1: 2012+A11: 2014

Compliance with these standards has been confirmed
through testing by an independent NAMAS approved
body.

APPROVALS

Before commencing installation, check that the following parts have
been supplied with the boiler:

1. WRAS approved flexible water inlet hose suitable for potable
water.

2. Drip tray kit

The tap handle, drip tray and cup stand mouldings
incorporate the Steritouch additive and have been
independently tested to prove the effectiveness of
the surface hygiene

Page 3

LOCATION

INSTALLATION AND MAINTENANCE

All metallic components of the machine, in direct contact with drinking
water are manufactured from high quality 316 grade stainless steel, or
non-ferrous materials, providing maximum resistance to corrosion.

CONSTRUCTION

To comply with recommendations from the
Health and Safety Executive it is important that
due consideration be given to safe operation
of the controls of the boiler. The

boiler should
therefore be positioned in such a manner
that the operator can stand directly facing the
machine with the controls at a recommended
height from the floor to the draw-off tap handle
of 1200mm +/- 200mm.

The boiler must be installed in a location where access is restricted
to operators that are suitably trained, or where untrained operators of
the machine can be supervised by trained personnel.

Consideration should also be given to the servicing requirements of the
machine and individual user requirements must always be taken into
account. The minimum and maximum ambient operating conditions
are 5 °C and 35 °C respectively. The appliance is not suitable for
installation where a water jet could be used. Install the boiler on a
surface suitable for the working weight of the boiler. Allow clearance
for ventilation and for the easy removal of the outer casing lid and
front panel. Calomax recommend a minimum clearance of 50mm on
all sides of the boiler. A suitably qualified engineer should install this
unit. Plumbing and electrical installation work may be involved.

Calomax products have been tested and found to
comply with the requirements of the Water Supply
(Water Fittings) Regulations 1999 for England and
Wales Water Bylaws 2000, Scotland and the Water
Regulations Ireland.

Page 4

TO COMPLY WITH UK WATER SUPPLY REGULATIONS
A SINGLE CHECK VALVE MUST BE FITTED.

BEFORE CONNECTING, THE SUPPLY PIPE MUST BE
THOROUGHLY FLUSHED OUT TO ENSURE THAT FOREIGN
MATTER DOES NOT BLOCK OR ENTER THE SOLENOID VALVE
The boiler must be connected to a potable water supply using the food
grade hose provided, or rigid 15mm pipe in a manner which complies
with UK water regulations via an appropriate isolating valve. Always
use the new hose supplied. Do not reuse old hoses. Do not use red or
blue washing machine hoses as these will impart an unpleasant taste
to the water. The water supply must provide a constant pressure of
between 20 KPa and 1000 KPa (0.2 to 10 Bar).
If the water supply contains solids in suspension it is recommended
that an “in line” water filter is fitted in the pipe work. Problems caused
by scale and sediment are not covered by the warranty.

ACCESS INSTRUCTIONS

Access to the internals of the machine is gained by the removal
of the front panel. It is advised to remove the cup stand drawer
before removing front panel. To remove the drawer pull the latch up
underneath the cup stand and slide the stand out. Calomax advise
to place the drawer back in its housing after the front panel has been
screwed back into place to avoid damage. When replacing the drawer
ensure there are no wires trapped behing the drawer to avoid pulling
them out.

COLD WATER INLET

Page 5

VENT / OVERFLOW

The vent / overflow pipe should be extended and laid with a continuous
fall, discharging to a safe and visible point via either of the two

options advised: ‘Via the drip tray’ or ‘By-passing the drip tray’,
both options are shown on the opposite page. The pipe should not be
directly connected to a closed waste, as taste problems may occur
and should never be allowed to become blocked or restricted.15mm
copper or ‘Speedfit’ pipe should be used.
If the machine is installed without the vent / overflow pipe being
extended as advised, any subsequent damage incurred will be the
responsibility of the installer. Further information, including diagrams,
can be found under the ‘Installation Guide’ section on our website.

After removing the cup stand pull off the outercasing lid from its
mounting clips. Do not pull the cup rails as this may damage the lid.
Remove the top two panel mounting screws, the cover is fitted with
two more clips at the bottom of the panel which can be pulled off to
gain access to the internal workings of the boiler.

Page 6

Via the drip tray

Remove the packaging cap and
replace the end stop on the back
of the drip tray with the straight
push fit connector supplied. Then
connect 15mm pipe to the other
end of the connector and run
it to a safe and visible point of
discharge.

The boiler will have a packaging cap on the
vent / overflow pipe underneath the boiler.
THIS MUST BE REMOVED.
Pull this off in the direction of the arrow.

VENT / OVERFLOW CONFIGURATION OPTIONS

By-passing the drip tray

Remove the packaging cap and
attach the elbow push fit connector
to the vent / overflow pipe on the
bottom of the boiler. Then connect
15mm pipe to the other end of the
connector and run it to a safe and
visible point of discharge.

Page 7

Only authorised personnel who have been instructed in the safe and
proper use of the equipment should be allowed to use this machine.
Boiling water is discharged from the tap and due care and diligence
should be exercised at all times.
In the event of the power supply lead to the boiler becoming damaged,
the appliance must be removed from service. For 3kW models, a
replacement genuine part is available from Calomax which must be
fitted by a suitably qualified engineer in order to avoid a hazard.

COMMISSIONING

Turn on the water supply and then switch on the electrical supply.
When the power switch is pressed on the front fascia the ‘Wait’ light
will illuminate and the unit will fill with water at a flow rate of

1.3 L/Min. When water reaches the low water level sensor, the element
will be energised and the solenoid will continue to fill the boiler to
the normal operating water level. When the water has reached the
normal operating temperature, the ‘Wait’ light will extinguish and
the ‘Ready’ light will illuminate. At this time the ‘Full’ light will be
illuminated indicating that the machine has reached full capacity of
boiling water.

USER INSTRUCTIONS

During normal operation some external parts will become
very hot, particularly the tap body. Care must be taken to
avoid injury, a burn or scald.

ELECTRICAL CONNECTIONS

The 3kW models should be connected to a 240V ac 13A electrical
supply, via the fitted plug and lead.
The 6kW models require fixed wiring to the internal terminal block.
A means of disconnection must be provided in which at least 3mm
separation between the live and neutral poles of the supply exist.
The 6kW models require the connection of an external equipotential

The installation of a residual current device (RCD) having a rated
residual operating current not exceeding 30 mA is advisable.

bonding conductor. This is located on the tap bracket
inside the boiler, accessible when first installing the boiler.
It is indicated by the equipotential symbol.

Page 8

SCALE

The production of scale is a natural phenomenon and commonly
occurs in hot water systems. The nature of the scale produced and
its rate of formation varies widely throughout the country.
To ensure continuous, reliable operation, the boiler should be regularly
de-scaled by a suitably qualified engineer.

The Eclipse boiler benefits from an integral scale inhibitor.

This is not
a scale eliminator and its effects will differ according to the water quality
in your area. To ensure trouble free operation, periodically check for
scale inside the boiling chamber. De-scaling may be required within
the first 12 months. This is not covered under the product’s warranty
as it is not a fault. Further information on scale, including a postcode
search facility for water hardness in your area can be found under the
‘Water Filter Advice’ section on our website.

SUBSEQUENT USE

After the boiler has finished the commissioning cycle and water is
drawn from the tap, water will be replenished in short cycles (small
volume of water and then heat). The solenoid and element will never
be on at the same time unless the boiler is switched off and on again
(re-setting commission mode). In normal use the boiler will always
be at operating temperature indicated by the ‘Ready’ light being
illuminated. The ‘Full’ light will be illuminated only when the boiler is
full of boiling water. By pressing the ‘ ’ symbol on the upper fascia
panel, the ‘Eco’ feature is selected. This feature reduces the working
capacity of the appliance by approximately half. The ‘Full’ light will be
disabled.

CLEANING

Avoid using any abrasive materials. Wiping the outer casing
with a damp cloth should be sufficient. Some stainless
steel cleaning products may not be suitable for plastic
and must not come in contact with the plastic fascia parts.
Always disconnect the electrical supply before cleaning.

NEVER USE A SPRAY JET OR ANY OTHER METHOD WHICH
COULD CAUSE WATER TO ENTER THE ELECTRICAL CHAMBER.

Page 9

GENERAL OPERATION

• To use the cup stand press the cup icon. The tray will spring
forward and can then be pulled out to its maximum extent.
Reverse the procedure when the tray is not required.

• Hold a cup below the tap or place on the
cup stand. Large vessels should be stood
on the main drip tray. Care must be taken
to avoid injury through splashing or

over-filling.

Page 10

• To begin filling, pull the handle forward or push it backward;
hot water begins to flow. If the tap is opened fully forwards it
can be locked open (for filling large vessels). In this state the
boiler must never be left unattended.

• To stop filling, return the handle to the closed position.

• The HT3C20 and HT6C20 models have
two tap handles. The handle on the left
has the cup stand underneath the tap.
This is the side advised for filling cups
and mugs. The handle on the right has
a quick flow nozzle resulting in a faster
flow of water out of the tap. Calomax
advise that this side is used to fill up
larger vessels, not cups or mugs.

SLOW
FLOW

QUICK

FLOW

Page 11

BASIC TROUBLE SHOOTING

Symptoms Possible Cause Remedy

No boiling water
available

Broken tap top

Element failed or tripped

Over-boil cutout tripped

Defective Printed Circuit Board

Replace tap top (or component)

Replace element or reset trip

Reset trip device

Replace Circuit Board

Overboiling

Excessive internal scale. (See
‘De-Scale’ page 23)

Faulty wiring to thermistor /
faulty thermistor

Temperature controller needs
adjusting

Element failed to earth

Defective Printed Circuit Board

De-scale the boiler
(Particularly thermistor)

Repair / replace as required

Lower operating temperature

Replace element

Replace Circuit Board

Overflows

Dirt in solenoid valve.

Level sensors require de­scaling or replacing

Defective Printed Circuit Board

Clean solenoid filter or replace
solenoid, “work the boiler” ­see Service Instructions.

De-scale / replace sensors

Replace Circuit board

THERMAL CUTOUT DEVICES.

The HT3C10, HT3C20 and HT6C20 boilers have an inbuilt thermal
cutout device to protect the element in a boil dry situation. They also
feature an inline thermal cutout device on the vent / overflow pipework
to detect and cut power in the event of an over-boil situation. Should
either cutout be activated, contact our service department or an
approved Calomax service provider for advice.

Page 12

ACCESSORIES

Securing clamp kit

Ref. MFK

Plug-in time switch

Ref. 7DPIT
Max 3 kW

Water filter kit

(To reduce taste & odour problems)

Ref. CWFK

Filter Cartridge

(Replacement filter for kit shown above)

Ref. CWFC1

X4

Eclipse drip tray kit black

Ref. EDTKBK

Eclipse large drip tray kit black

Ref. ELDTKBK

For more information visit our website at www.calomax.co.uk or call 01132496681

Page 13

Spare parts are usually available ex-stock from our online shop.
Please quote Model & Serial Number if unsure.

Page 14

17

ELPK PSSELSSK

ECLIPSE LEVEL

PROBES KIT

ECLIPSE LARGE

SILICONE SEAL KIT

POWER SWITCH

18 19 20

X9 various

sizes

21

WIH2MK (2m)

WATER INLET

HOSE

X2

X1

22

WIHK (1m)

WATER INLET

HOSE

CSDK

CUP STAND

DRAWER KIT

E6PCBT

ECLIPSE 6KW

P.C.B. TESTED

23

ESSK

ECLIPSE SILICONE

SEAL KIT

X8 various

sizes

24

25

KR

RELAY

Page 15

EXPLODED PARTS VIEW FOR

ECLIPSE HT3C10

(To be read in conjunction with the spare parts list)

* Complete set of 8 seals (2 sizes)

Page 16

If parts required are not
identified, please contact
Calomax Limited

Page 17

EXPLODED PARTS VIEW FOR

ECLIPSE HT3C20

(To be read in conjunction with the spare parts list)

* Complete set of 9 seals (2 sizes)

Page 18

If parts required are not
identified, please contact
Calomax Limited

Page 19

EXPLODED PARTS VIEW FOR

ECLIPSE HT6C20

(To be read in conjunction with the spare parts list)

* Complete set of 9 seals (2 sizes)

Page 20

If parts required are not
identified, please contact
Calomax Limited

Page 21

When the red ‘Service’ indicator light on the front of the boiler is
illuminated (solidly), the machine has been starved of water in excess
of 30 minutes and the solenoid valve has been disabled to prevent
damage to the solenoid coil through overheat. To re-energise the
solenoid, the electrical supply must be switched off and then on again,
after first reinstating the water supply.

If the unit requires servicing,

the red ‘Service’ indicator will flash a
sequence of light pulses. A 2x or 3x light-pulse generally indicates
that the low or normal level probes require de-scaling.

A 4x or

6x light-pulse means the water level has reached the high
level sensor and the likelihood is that the normal level sensor requires
de-scaling, or the machine has over-filled due to debris trapped in
the solenoid valve. The debris can be removed by drawing plenty of
water from the dispense tap, causing the solenoid valve to operate
and flush out the obstruction. The machine will reset itself once the
problem has cleared. If this does not rectify the problem, turn off the
water supply and check for debris in the solenoid valve filter. The
unit can be used normally while the service indicator is flashing a
4x pulse. For further assistance, contact our service department on
0113 249 6681, e-mail [e-mail] or find a local service
engineer at www.calomax.co.uk

Access to internal components can be gained by the removal of the
outer casing lid and front panel. Once the outer casing is removed,
access to the Service Area has been gained. This access must be
restricted to persons having knowledge and practical experience of the
appliance, in particular as far as safety and hygiene are concerned.

SERVICE INSTRUCTIONS

Page 22

DE-SCALE

To gain access to the internals of the water tank, the body lid must be
removed. Remove the 4 screws, break the lid gasket seal and lift it
clear of the body. A video of this procedure can be viewed under the
‘Technical Guides’ section on our website.

Note: Whenever the body lid has been removed from the boiler
a new lid gasket may be required to ensure a steam-tight joint.
Damage to the unit caused by a poor lid seal is not covered by
warranty.

Scale deposits should be removed from all internal surfaces,
particularly the heating element, thermistor and level sensors by
gently tapping or scraping. If the deposits are soft, use a nylon
pad and flush out. Abrasive cleaning materials containing scouring
powders and detergents must not be used, as such materials can
cause taste problems.

Suitable chemical de-scalants must only be used in accordance
with the manufacturer’s recommendations. This will prevent health
and safety issues, taste problems and potential damage to the
appliance. All trace of these chemicals must be removed before re­commissioning the unit. Misuse of such chemicals is not covered by
the product warranty.

IMPORTANT Before re-commissioning the boiler it is important
that all scale and moisture is removed from the level sensors
and insulating gaskets to avoid a false signal being transmitted
through the scale. Failure to remove this scale and/or moisture
will cause the sensor to indicate to the PCB that water is covering
the element, whether or not water is present. In this situation the
PCB will energise the element causing failure. If in doubt, protect
the element by hand filling with water to the level of the draw-off
tap before switching on the electrical supply to the boiler.

Page 23

GENERAL FUNCTION

The printed circuit board (PCB) controls the heating and filling functions
of the boiler by monitoring the thermistor and level sensors. The PCB
also controls the external light unit to indicate the current state of the
boiler. Red and yellow LED’S on the circuit board indicate whether
the PCB has energised the element or solenoid respectively.

Should an element fail and need to be replaced, it may be necessary
to replace the lid gasket to ensure a reliable steam-tight seal.

Note: the element has a permanent ‘Live’ feed, and the ‘Neutral’
is switched. A video showing how to replace an element can be
viewed under the ‘Technical Guides’ section on our website

PRINTED CIRCUIT BOARD REPLACEMENT (PCB).

In the unlikely event of a PCB failing and a replacement being required,
full instructions will be supplied. It is important to note however, that
the separate Triac PCB must be securely mounted against the copper
heat-sink to ensure reliable heat dissipation. Heat transfer compound
is also supplied with all replacement circuit boards.

WATER TEMPERATURE

The temperature potentiometer is pre-set at Calomax and will only
require adjustment in exceptional circumstances. Contact Calomax
for advice.

Water boils at different temperatures depending on barometric
pressure. The temperature should not be tuned higher than 98

°C, or

over boiling may occur during low barometric pressure conditions.

Page 24

Wiring Schematic for

HT3C10 & HT3C20

TRIAC PCB

RCD

FITTED PLUG
& LEAD

L

N

COLD WATER INLET

SOLENOID VALVE

POWER

SWITCH

THERMISTOR

EARTH ON

WATER TANK

EARTH ON

WRAPPER

ELEMENT WITH

THERMAL CUTOUT

(NC)

LIGHT CIRCUIT BOARD

LOW

ECO

NORMAL

HIGH

LEVEL

SENSORS

GREY 0.75mm

GREY 0.75mm

BLACK 1.5mm

BLUE 1.5mm

WHITE 0.75mm

YELLOW 0.75mm

BLACK 0.75mm

RED 1.5mm RED 1.5mm

ORANGE 0.75mm

GREEN 0.75mm

BROWN 0.75mm

PINK 0.75mm

RED

1.5mm

RED 1.5mm

BLACK 1.5mm

GREEN/YELLOW 1.5m m

INSULATION

LOOP

BLACK 0.75mm

GREEN 0.75mm

GREEN/YELLOW 1.5mm GREEN/YELLOW 1.5m m

RED 0.75mm

RED

PINK

BROWN

GREEN

ORANGE

YELLOW

BLACK

RED 1.5mm

VENT/ OVERFLOW

THERMAL CUTOUT

(RECOMMENDED) RCD DEVICE TO HAVE A RA

OPERATING CURRENT NOT EXCEEDIN

L

N

Page 25

Wiring Schematic for

HT6C20

L

N

RCD

INCOMING SINGLE PHASE SUPPLY THROUGH A DOUBLE POLE

ISOLATING SWITCH, FUSE AND (RECOMMENDED) RCD DEVICE

HAVING A RATED OPERATING CURRENT NOT EXCEEDING 30mA

L

N

THERMISTOR

LIGHT CIRCUIT BOARD

BLACK

YELLOW

EARTH ON

WRAPPER

EARTH ON

WATER TANK

GREEN/YELLOW 2.5mm GREEN/YELLOW 1.5mm

GREEN 0.75mm

BLACK 4.0mm

BLACK 2.5mm

RELAY

COLD WATER INLET

SOLENOID VALVE

ELEMENT WITH

THERMAL CUTOUT

GREY 0.75mm

GREY 0.75mm

RED

1.5mm

BLUE 1.5mm

PINK 1.5mm

GREEN/YELLOW 1.5mm

RED 1.5mm

PINK 1.5mm

BLACK 0.75mm

ORANGE

GREEN

BROWN

PINK

RED

GREEN

RED

BLACK

RED 0.75mm

BLACK 0.75mm

YELLOW 0.75mm

BLACK 0.75mm

ELEMENT WITH

THERMAL CUTOUT

(MAIN)

RED

1.5mm

GREEN/YELLOW 1.5mm

EARTH ON

WRAPPER

BLUE 4.0mm

BLUE 1.5mm

LILAC 1.5mm

RED 0.75mm

WHITE 0.75mm

LOW

NORMAL

HIGH

LEVEL

SENSORS

ORANGE 0.75mm

GREEN 0.75mm

BROWN 0.75mm

PINK 0.75mm

ECO

SMALL TAB

VENT/ OVERFLOW

THERMAL CUTOUT

POWER

SWITCH

RED 1.5mm

BROWN 1.5mm

BROWN 1.5mm

Page 26

Calomax have manufactured water boilers in the UK for over 70 years.
We are proud of our products and the back-up service we provide

Properly maintained and serviced, a Calomax boiler should last
many years and we have no hesitation in providing a full 12 months
(mainland UK) parts and labour warranty for all models.

In addition, the Eclipse range of boilers offer an additional
12 month back-to-base warranty.

Some factors are beyond our control and would invalidate the warranty
offered. These include:
Incorrect installation
High / Low water pressure
Incorrect voltage supply
Accidental damage
Limescale build-up
The last item can be a particular problem for water dispensing
equipment in hard-water areas. All hot water equipment should be
serviced and de-scaled by approved organisations on a regular basis
to avoid a damaging build-up of limescale.

Although our boilers incorporate scale-inhibitor technology, we
recommend that a taste, odour and scale filter should be fitted where
appropriate.

Please visit our website www.calomax.co.uk for details of our service
partner network and the range of filters and accessories available.

WARRANTY GUARANTEE (

UK Mainland customers only)

Page 27

PLEASE FILL IN MODEL & SERIAL NUMBER FOR FUTURE REFERENCE

PLEASE CONTACT OUR SERVICE DEPARTMENT FOR ASSISTANCE

Calomax Limited, Lupton Avenue, Leeds LS9 7DD
Tel: [phone]
Fax: [phone]
e-mail: [e-mail]

Model
Serial Number
Draw off Capacity HT

3C10
HT3C20
HT6C20

10 Litres
20 Litres
20 Litres

Heat-up Time (First fill to full capacity)

HT3C10
HT3C20
HT6C20

30 Minutes
71 Minutes
38 Minutes

Voltage HT3C10
HT3C20
HT6C20

220 - 240 V ac 50-60 Hz
220 - 240 V ac 50-60 Hz
220 - 240 V ac 50-60 Hz
25 Amp SINGLE PHASE

Power rating HT3C10
HT3C20
HT6C20

3kW (MAX)
3kW (MAX)
6kW (MAX)

Note: All measurements are approximate

MODEL HT3C10 HT3C20 HT6C20

Height (mm) 760 800 800

Depth (mm) *With Drip Tray 530 560 560

Width (mm) 240 370 370

Drip tray clearance (mm) 300 300 300

Working weight (Kg)

30 53 54

DIMENSIONS AND WEIGHTS

PRODUCT SPECIFICATION

Page 28