Whale WC1302B Assembly Instructions

Thank you for purchasing this Whale® product.
For over 70 years Whale has led the way in the design and manufacture of water and waste systems including:-
plumbing, faucets, showers, pumps and heating for mobile applications. Today’s range features space and water
heaters for caravans and motorhomes. The company and its products have built a reputation for quality, reliability
and innovation backed up by excellent customer service.
For information on our full product range visit: www.whalepumps.com
CONTENTS
1. Principles of Operation
2. Specification
3. Application
4. Warnings
5. Parts List
6. Instructions for Installation
7. Instructions for Use
8. Maintenance
9. Trouble Shooting
10. Winterising / Draining
11. Service Support Details
12. EU Declaration of Conformity
13. Patents and Trademarks
14. Warranty
LIST OF IMAGES
Fig. 1 Components Drawing
Fig. 2 Dimensions – Side View
Fig. 3 Dimensions – Plan View
Fig. 4 Dimensions – Front View
Fig. 5 Installation Locating Diagram
Fig. 6 Cut Out Hole For Flue
Fig. 7 Flue Dimensions
Fig. 8 Reinforce Flue Hole
Fig. 9 Sealing the Space Between Flue and Caravan
Fig. 10 Attaching Flue Box
Fig. 11 Installation and Securing Flue Cover
Fig. 12 Connect Water Heater to Flue
Fig. 13 Water Heater Position
Fig 14 Fitting the Drain Valve
Fig. 15 Secure Water Heater to Floor
Fig. 16 Connect to The Gas Supply
Fig. 17 Insert Control Panel
Fig. 18 Secure Control Panel
Fig. 19 Installed Control Panel
Fig. 20 Connect 12V d.c. Connector
Fig. 21 Mains Electrical Connection
Fig. 22 Mains Connection
Fig. 23 Connect Cold Water Supply
Fig. 24 Installed Cold Water Supply
Fig. 25 Connect Braided Hose
Fig. 26 Connect Hot Water Supply
Fig. 27 Completed Installation - Vehicle Manufacturer Version
Fig. 28 Completed Installation - Retail Version
Fig. 29 Whale® Water Heater Control Panel
Fig. 30 Whale® Duo Control Panel
Fig. 31 Reset Button Location
Water Heater MkII
INSTALLATION & USER INSTRUCTIONS
WH1302 or WH1302B or WC1302B
1
All work must be carried out by a competent person as defined by
BS7671 PART2.
All Whale gas products must be installed by a Qualified Gas Engineer in
accordance with the installation instructions and BS EN 1949-2011.
Please note if incorrectly installed a risk of electrocution exists.

The Whale® Water Heater Mk II is a gas and electric storage Water Heater. The unique design has a 13L capacity
hot water tank and incorporates versatile controls for low current draw or fast heat up settings. With robust insulation
and no removable flue cover, the Whale® Water Heater needs minimal maintenance. Key enhancements to the Mk II
design include a new, easy installation flue design, a highly durable burner design and a new pressure relief valve
incorporating a drain function.
Read the following carefully before installation
Model: WH1302 or WH1302B or WC1302B
Maximum dimensions inside RV: Height: 271mm, Width: 385mm, Length: 470mm
Dry Weight: 10.0kg
Nominal Water Capacity 13 Litre
Gas: butane 28-30mbar, propane 37mbar - CAT I3+ (29/37), butane/propane 30mbar - CAT I3B/P (30)
Classification of Storage Water heater: Type: C11 (Natural draft)
Nominal Heat Input: Gas 1.25kW.
Standby Consumption Gas 98W
Nominal Heat Input Electric 1.2kW.
Electric: 230V a.c. 50 Hz 600/1200W
Maximum Current a.c.: 6 Amps
Nominal Voltage: 12V d.c. (10.0V d.c. min. to 15V d.c. max.)
Maximum Current d.c.: 0.36 Amps (0.01 Amps on standby)
Maximum Water Supply Pressure: 190kPa (1.9 Bar)
Rated Pressure 300kPa (3.0 Bar)
Pressure Relief Valve Setting: 300kPa (3.0 Bar)
Maximum Caravan Side Wall Thickness: 47mm
Ingress Protection Rating: IPX1
Note: If connecting to mains water supply, a suitable water pressure regulator must be connected to ensure that the
maximum supply water pressure does not exceed 190kPa (1.9 Bar).
Dry Storage Temperature -20°C to 70°C
Maximum Water Temperature Approx. 75°C
Typical heating up times from 15°C to 70°C: Gas and both electric elements approx. 22 minutes.
Two electric elements only approx. 38 minutes, Gas only approx. 43 minutes.
For use only in road vehicles i.e. caravans and motorhomes only. Not suitable for caravan holiday homes i.e. mobile
homes or static caravans.
The Water Heater position must allow access for servicing and to the reset button.
Whale’s policy is one of continuous improvement and we reserve the right to change specifications without prior
notice.
2. SPECIFICATION
1. PRINCIPLES OF OPERATION
2

The Whale® Water Heater has been designed for caravan, motorhome and mobile applications, and is suitable for
use with a typical recreational vehicle shower. It is only suitable for use in recreational vehicles e.g. caravans and
motorhomes, but is not suitable for use in caravan holiday homes e.g. mobile homes and static caravans. The 13L
tank has the capacity to provide two 5 minute showers with minimal reheat time.
Do not operate the appliance while the vehicle is in motion.
This symbol indicates that this appliance is suitable for use in Leisure Accommodation Vehicles.
This symbol indicates that this appliance is not suitable for use in boats.
Observe all warnings.
In the unlikely event of leaks in the gas system, or if there is a smell of gas:
• Extinguish all naked flames
• Switch off all appliances and do not operate any electrical switches
• Turn off all gas appliances
• Open windows and doors for ventilation
• Do not smoke
• Shut off gas connection
Immediately ensure that the system is thoroughly checked by a registered gas engineer at a Whale Approved
Service Centre or by an approved member of the Whale Service Engineer Network.
The Water Heater must not be operated in the following situations:
• When refuelling the vehicle or refuelling the vehicle towing the caravan or any other appliance.
• When the vehicle in which the Water Heater is installed is in motion.
• When the vehicle in which the Water Heater is installed in a confined space (such as a garage).
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children must be supervised to ensure that they do not play with the appliance.
Before operating the Water Heater, the user must ensure that the caravan water system including Water Heater is
full of water, and the vehicle is level.
This appliance must be drained if there is a risk of frost when not in use. Frost damage will not be covered by
warranty.
The water temperature cannot be adjusted. It is automatically set to approximately 70°C to prevent bacteria growth.
To avoid scalding, the temperature of the hot water supplied to the taps and showers must be controlled.
Do not use the water as drinking water.
Any alteration to the appliance, including flue plate, use of non-Whale® spare parts/accessories and non-observation
of the installation and operation instructions shall lead to cancellation of the warranty and exclusion of liability claims
and results in it becoming illegal to use the appliance.
Please note: Incorrect installation or use of non-original Whale® parts may invalidate the warranty. It also becomes
illegal to use the appliance if incorrectly installed, and in some countries this even makes it illegal to use the vehicle.
3. APPLICATION
4. WARNINGS
3

5. PARTS LIST
4
The Whale® Water Heater Kit contains:
Fig.1 Components Drawing
Quantity Description
1Water Heater
4Water Heater Screws
1Flue Assembly
8Flue Assembly Screws
13.5m Control Panel Cable (WH1302 Only)
1Control Panel
4Control Panel Screws
1Hot Water Flexible Connector
1Pressure Relief / Drain Valve Assembly
1Male Adaptor ⅜” Flexible Hose Plumbing Fitting
2Male Adaptor ½” Flexible Hose Plumbing Fitting
1Warranty Registration Card
1Instruction Manual Including Installation Templates
1Instruction Manual Storage Pocket, with Adhesive Fixing Strip
Insulation
Flue Cover
Flue Box
Burner Gasket
Burner
Electrode and
HT Lead
Thermostat
Tank
PCB
Electric Element
Hot Water
Flexible Hose
PCB Cover
Gas Supply Pipe
Gas Solenoid
Mounting Board
Pressure Relief Drain Valve

To the Fitter:
Installation and servicing of this appliance must only be carried out by competent persons registered with the Gas
Safe Register (GB) or the relevant national organisation, in accordance with the relevant regulatory and safety
requirements.
Before installation, you must ensure that the appliance has been supplied in good condition and if damaged, do not
install. Contact Whale Support, [phone].
A competent person must install the appliance in accordance with the appliance installation instructions. This
appliance is for use with LPG (see appliance data plate) and mains electricity (230V a.c.). Check that the product is
suitable for the intended application, in particular, the installer must check the compatibility of the data plate
information with the LPG supply requirements of the vehicle. Follow these installation instructions and ensure all
relevant personnel read the points listed below. Also ensure that these operating instructions are passed on to the
end user.
Please note: The appliance must be installed in accordance with any relevant regulations in the country where the
appliance is installed. For this appliance in Europe, the standard BS EN 1949:2011 “Specification for the
installation of LPG Systems For Habitation Purposes In Leisure Accommodation Vehicles And In Other Road
Vehicles”applies.
6. INSTRUCTIONS FOR INSTALLATION
Fig. 2 Dimensions - Side View
Fig. 4 Dimensions - Front View
422mm 30mm
240mm (Cut out in wall)
277mm
Side Wall
Gas In
160mm
360mm
271mm
Fig. 3 Dimensions - Plan View
Vehicle Floor
Water Heater
Side Wall
135 mm
(Cut out
in wall)
470mm
5
Pressure Relief Drain Valve Red Reset Button
49mm

Step 1 Find a Suitable Location to Install the Water Heater
Consider the following 10 points:
i. For weight distribution in caravans, the Water Heater must be positioned as close to the axle as possible.
The installer must avoid locating the Water Heater at the very rear and the very front of the vehicle.
ii. Ensure the pressure relief valve / discharge pipe can be located through the floor without fouling chassis
members etc.
iii If the Water Heater is installed in a raised position, the drain valve must be installed at the lowest position in
the water system, to achieve effective draining. To achieve this, remove the drain valve from the Water
Heater and relocate it, near the Water Heater in the lowest position between the Water Heater and the non-
return valve (if one is fitted), in the water system. Make sure the water system cannot create air locks that
would prevent the Water Heater and the full system from draining.
iv. Ensure that any surfaces in contact with the Water Heater are rated to at least 70 degrees C.
v. Ensure that the location allows access for servicing the Water Heater.
vi. In selecting the Water Heater location, ensure that the flue terminal will be located on a flat and exposed
outside surface, avoiding trim strips.
vii. The flue terminal must be positioned at the side of the vehicle that an awning will never be fitted to.
viii. Only the supplied flue terminal is permitted to be used in conjunction with this Water Heater. This flue must
not be positioned within 500mm of a refuelling point or fuel tank breather outlet or any ventilator from the fuel
system(s). The flue terminal must not be fitted within 300mm of a ventilator for the living space or an
opening part of a window.
ix. The flue terminal must only be positioned vertically below an opening part of a window if the appliance is
fitted with an automatic shut-off device to prevent operation when the window is open. The flue terminal
must still be a minimum of 300mm below the window.
x. The user must have access to the reset button.
Step 2 Cut Out Hole for Flue
See the flue template supplied with the Water Heater.
i) Position template on the inside of the wall with side ‘A’ visible, then drill hole at centre position marked ‘X’ on the
template.
ii) Position the template on the outside of the wall with side B visible, locate over the drilled position hole ‘X’, and
ensure the template is level. Ensure that the flue outline is on a flat surface avoiding trim strips etc.
If the flue needs mounted in a higher position, the Water Heater mounting board can be raised to suit, if there is
sufficient height available.
iii) Drill four 6mm corner holes and cut aperture using flue template (provided) as a guide.
6
Fig. 6 Cut Out Hole for Flue Fig. 7 Flue Dimensions
Fuel refuelling
/ breather vent
PLEASE NOTE: Steps i to x
for information on Water
Heater and Flue Locations.
KEY
Prohibited area for
Water Heater flue
Fig. 5 Installation Locating Diagram
Min 500mm

iv) Reinforce the cut out with wooden batons (minimum 20mm wide). This may require insulation in the wall to be
removed.
Fig. 8 Reinforce Flue Hole
Step 3 Attaching the Flue to the Caravan
Apply sealant to seal flue box on the caravan side wall of the flue sealing face, ensuring each screw hole is
surrounded by sealant. Secure flue with the 6 screws (No. 8 x 3⁄4”) provided and remove excess sealant.
Step 4 Attaching the Flue Cover
Clip the top of the flue cover onto the back box and secure with two screws (No.6 x 1⁄2”) provided.
Step 5 Connect Water Heater to Flue
Set Water Heater on the floor and slide fully into flue as shown (see Fig. 12).
7
Fig. 9 Sealing the Flue to Caravan
Fig. 10 Attaching Flue Box
Fig. 11 Installation and Securing of Flue Cover
Fig. 12 Connect Water Heater to Flue (Plan View)
Fig. 13 Water Heater Position
Flue Hole Wooden Batons
Flue Hole
Flue Box
Screw Hole
Flue Box
Screw Hole
Screw Hole
Screw Hole
Screw Hole
Screw Hole
Screw Hole Screw Hole
Flue Cover
Flue Hole Inside Wall
Water Heater Outside Wall
Flue Cover
Wall Interior
Water
Heater
Air Inlet
Air Outlet

Step 6 Fitting the Drain Pipe (see Fig. 14)
When the Water Heater is in place on the floor, mark a location for where the pressure relief / drain valve discharge
pipe will come through the floor. Carefully remove the Water Heater and drill a hole in the floor, minimum diameter
20mm, ensuring that there are no obstructions on the underside of the vehicle i.e. gas pipes, chassis members etc.
Refit the Water Heater, inserting the discharge pipe in the hole and ensure that it is left open to the atmosphere at all
times.
Step 7 Secure Water Heater to Floor
To secure the Water Heater to the floor, use 4 screws (No. 8 x 1 ¼”) provided (see Fig. 15).
Fig. 15 Secure Water Heater to Floor
Step 8 Connect to Gas Supply (see Fig. 16)
Ventilation must comply with relevant local requirements e.g. EN 721. Please note: Valve and connection (shown in
Fig. 16) are not included with this Water Heater.
Pressure Relief / Drain Valve
Pressure Relief / Drain Valve
Water Heater
Mounting Board
Water Heater
Mounting Board
Screw Hole
Screw Hole
Screw Hole
Pressure Relief / Drain Valve
Discharge Pipe
Discharge Pipe
Discharge Pipe
Gas Valve
Gas Connection
8
Red Reset Button
Red Reset Button
Red Reset Button
Fig. 14 Fitting the Pressure Relief / Drain Valve
Fig. 16 Connect Gas Supply

The appliance must be installed in accordance with the installation instructions and comply with any relevant
regulations in the country where the appliance is installed.
The gas pipe, the Water Heater and the mains supply gas pipe must be checked to ensure that they are free from
dirt or other particles before connection to the 8mm gas inlet pipe on the Water Heater with a compression joint. The
supply pipe must be routed so that the appliance can be removed for servicing.
The gas shut off valve must be located in the vicinity of the Water Heater and all connections must be kept to a
minimum.
WARNING: The operating pressure for the gas supply must be either 28-30mBar Butane or 30mBar-37mBar
Propane.
Step 9 Installing Control Panel
Option 1 - Installing Whale Water Heater Control Panel (see Figs. 17-19)
Option 2 - Installing Whale Duo Control Panel
Option 3 - Installing Vehicle Manufacturer Control Panel
When mounting the Whale® Control Panel find a suitable convenient and accessible position. Ensure suitable access
for wiring loom connection and cable. Note that the cable supplied to connect the Control Panel to the Water Heater
is 3.5m long. The minimum depth behind the Panel for wiring must be 50mm. If using a Control Panel specific to the
vehicle manufacturer or the vehicle, the electrical connections must be made in accordance with Step 10.
Option 1 - Installing Whale Water Heater Control Panel
The Whale Water Heater Control Panel requires a cut out 45mm high x 35mm wide. Feed the wires through the
Control Panel mounting frame (see Fig.17) and line up the holes with the Control Panel. Feed the wires through the
cut out in the wall and locate into desired position. Secure with 2 screws (No.4 x 3⁄4) provided, then clip on the
surround frame.
In some instances, it may be necessary to make the wiring connections in Step 9 before securing the control panel to
the wall. Please note: It may be possible to retrofit the Whale® Control Panel into existing frames.
Fig. 17 Insert Control Panel Fig. 18 Secure Control Panel Fig. 19 Installed Control Panel
Option 2 - Installing Duo Whale Control Panel
The Whale Duo Control Panel requires a cut out 118mm wide x 64mm high. Feed the wires through the cut out in the
wall and locate into desired position. Secure with 2 screws (No.4 x 3⁄4) provided, then clip on the surround frame.
In some instances, it may be necessary to make the wiring connections in Step 11 before securing the Whale Duo
Control Panel to the wall.
Option 3 - Installing Vehicle Manufacturer Control Panel
If your vehicle is fitted with an alternative control panel, please refer to the control panel manufacturer’s instructions
or your vehicle handbook.
Step 10 Electrical Connections 12V d.c.
WARNING: Always disconnect the appliance from the power supply prior to working on electrical components.
The Whale Water Heater and Control Panel come complete with electrical connectors fitted.
9

Wire Number Description Wire Colour
1Switch common Brown
2Burner switch Blue
3Immersion 1 switch Green
4Immersion 2 switch Grey
5Burner LED Orange
6Lockout LED Violet
712v supply Red
80v supply White
The Whale® Water Heater and Control Panel are designed to be integrated into the caravan’s wiring loom. The
Water Heater is provided with a JST VL series 8 way socket, and the Control Panel with a JST VL 6 way socket. 6
wires are required to connect the Water Heater to the Control Panel. The 12V d.c. and 0V d.c. power supply are to
be connected to the 8 way socket.
Please note: The Water Heater must be installed in-line with a 5 Amp fuse. Whale recommends that a 5 Amp
automotive fuse is fitted in the 12V supply.
Table 1: Connections at Water Heater
Please Note: The water may drip from the discharge pipe of the pressure-relief valve during heating up. This pipe
must be left open to the atmosphere, must be installed in a continuously downward direction and in a frost-free
environment. The pressure relief valve must be operated regularly (at least twice a year) by turning the yellow lever
in the clockwise direction, to remove lime deposits and to verify that it is not blocked.
Connect the 8 way electrical connector to the 8 way connector on the Water Heater, then route the wire to the
Control Panel and connect the 6 way electrical connector to the 6 way connector at the Control Panel. Secure the 6
way wire close to the Control Panel so that there is no strain on the wires at the switches. Connect the red flying lead
coming from the 8 way connector to a 12V d.c. supply; then connect the white flying lead to the caravan 0V d.c.
Fig. 20 Connect 12V d.c. Connector
Step 11 Electrical Connection 230V. Vehicle Manufacturer Installation: WH1302B or WC1302B
The appliance must be installed in accordance with the installation instructions and comply with any relevant
regulations in the country where the appliance is installed. Electrical installation must be carried out by a suitably
qualified electrician. The electrical supply must be connected to a 10 amp fused spur provided with an all-pole
disconnection and the appliance must be earthed.
The mains supply cable is supplied with a JST LP series socket (terminal pins are JST slm-61T-2.0) and must be
mounted in a housing with strain relief to prevent accidental disconnection and prevent access to the connector.
Fig. 21 Mains Electrical Connection
If the supply cord is damaged, it must be replaced by Whale, a Whale Approved Service Engineer or a Whale
Approved Service Centre.
Water Heater Wiring Loom
Protective Cover Protective Cover Lid
Water Heater
8 Way Electrical Connector
Gas Pipe
10

Retail Installation - WH1302 (see Fig. 22)
The Whale® Water Heater comes fitted with a 3 pin plug. Whale recommends that the socket must be mounted
vertically and away from potential exposure to water. If installation of an electrical socket is required, this must be
carried out by an approved electrician. The plug is fitted with a 13 amp fuse.
Step 12 Connection to Cold Water Supply (see Figs. 23 & 24)
The Whale® Water Heater is fitted with a Whale® 12mm Quick Connect fitting on the cold water inlet to fit to Whale®
semi rigid tubing. Various plumbing adaptors are included to assist with these connections as follows:-
For any other plumbing systems, contact Whale® Support for further information.
Fig. 23 Connect Cold Water Supply Fig. 24 Installed Cold Water Supply
Important: Do not operate the appliance without the installed pressure relief device attached to the Water Heater.
Please note: A Non-Return Valve (not supplied) can be fitted before the Pressure Relief Valve to prevent back flow
of hot water to cold water taps.
Step 13 Connect Hot Water Supply (see Figs. 25 & 26)
Screw in the braided hose supplied into the hot water outlet and tighten with a 19mm spanner. The outlet of the
braided hose has a 12mm stem which can be connected to a number of different pipe systems with the included
fittings as follows:-
If you have any other plumbing system, contact Whale® Support for further information.
Fig. 22 Mains Connection
3 Pin Plug Socket
11
Water Heater
Plumbing fitting
Cold water supply pipe
Water Heater
Plumbing fitting
Flexible Tubing Adaptor Whale Part Number Additional Information
10mm (3⁄8”) 3⁄8” Stem Adaptor WU1280 Secure with a hose clip
13mm (½”) ½” Stem Adaptor WU1282 Secure with a hose clip
Pipework Adaptor Whale Part Number Additional Information
12mm 12mm Equal Straight WU1204 Push in twice to ensure the fitting
is fully home and watertight. (See
Fig. 23)
10mm (3⁄8”) None N/A Push the hose over the
12mm nipple on the end of the
braided hose and secure with a
hose clip.
13mm (½”) 12mm Equal Straight
½” Stem Adaptor
WU1204
WU1282
Secure with a hose clip

Please note: The hot water flexible braided hose (included) must always be used to ensure safe operation.
Fig. 25 Connect Braided Hose Fig. 26 Connect Hot Water Supply
Step 14 Completed installation (see Figs. 27 & 28)
Fig. 27 Typical Vehicle Manufacturer’s Installation Fig. 28 Typical Retail Installation
WH1302B or WC1302B WH1302
Please note: After completing installation a full function check including gas soundness must be carried out, to
ensure that the appliance has been installed and operates correctly. The gas soundness check must be carried out
by an accredited LPG engineer and a test certificate issued.
To the User: Read the following instructions carefully.
Observe all Warnings.
Never operate the Water Heater without water in it. This appliance must not be connected directly to the mains water
supply without a pressure regulator fitted, or any water supply greater than 190 kPa (1.9 bar). Ensure the
caravan water system including Water Heater is full of water, and the vehicle is level before operating.
When using operating switches provided by the installer or manufacturer, they are responsible for providing user
instructions and identification of symbols on the Control Panel.
OPERATING INSTRUCTIONS
For operation of the Water Heater, a 12V d.c. supply must be connected at all times. To operate the Water Heater’s
electric elements, it must also be connected to a suitable 230V a.c. supply.
Upon initial operation, or to refill after the system has been drained, check the drain valve is closed, then fill the
system with clean fresh water. To fill, open one hot tap and switch on the Water Pump. Leave the tap open to allow
air to escape while the Water Heater is filling. Once water flows smoothly out of the hot tap, the Water Heater is
filled. To allow the remainder of air to escape from the system, open each hot water tap in turn until water flows
smoothly.
Please note: In cold temperatures, the water in the supply pipework may freeze and prevent filling.
Check that all the gas and/or electricity supplies are turned on.
12
7. INSTRUCTIONS FOR USE
Hot Water Flexible Braided Hose
Water Heater
Water Heater
Hot Water
Flexible
Braided
Hose Equal Straight
Semi-Rigid Tubing

13
Electric Operation Switch
Gas Operation Switch
Gas Lit LED Diagnostic LED
Temperature Control
Space Heater Function
Diagnostic LED - Space Heater
Gas Light - Space Heater
Gas Light - Water Heater
Water Heater Function
Diagnostic LED - Water Heater Gas Icon
Fig. 30 Whale Duo Control Panel
Option 1 - Whale Water Heater Control Panel
Fig. 29 Whale Water Heater Control Panel
For Gas Operation: Operate the left-hand switch to the ‘on’ (flame) position. There will be a pre-purge pause of
approximately 5 seconds to allow any un-burnt gas to leave the flue and will extinguish when the water is up to
temperature. A green LED will light upon successful flame ignition. If there is air in the gas supply line, it may take a
few attempts for the gas to ignite. See Section 9 for gas lockout re-setting. If the ignition is not satisfactory, the red
diagnostic LED will flash - refer to the Trouble Shooting Guide (see Section 9).
For Electric Operation: The Water Heater is equipped with twin 600W / 1200 W immersion heater elements offering
operation at 600W or 1200W. Operate the right-hand rocker switch to the top position
element. To turn on both electric elements, operate the right-hand rocker switch to the bottom position.
Note: The electric elements will still operate if the appliance is in gas ignition lock-out.
Gas and Electric Operation: For faster heating, the appliance can be operated with both gas and electric.
Switching Appliance Off: Operate the left-hand gas switch to the top ‘Off’ position (O) and the right-hand electric
rocker switch to the centre position (O). If the Water Heater is not going to be used for some time, isolate the gas
supply and drain water if there is a risk of freezing.
Option 2 - Whale Duo Control Panel
For Gas Operation - Water Heater: Press the Water Heater Function key until the ‘gas’ icon is illuminated. There
will be a pre-purge pause of approximately 5 seconds to allow any un-burnt gas to leave the flue and will extinguish
when the water is up to temperature. A green LED (Gas Lit - Water Heater) will light upon successful flame ignition.
If there is air in the gas supply line, it may take a few attempts for the gas to ignite. See Section 9 for gas lockout
resetting. If the ignition is not satisfactory, the red diagnostic LED will illuminate - refer to the Trouble Shooting Guide
(see Section 9).
For Electric Operation - Water Heater: The Water Heater is equipped with twin 600W / 1200 W immersion heater
elements offering operation at 600W or 1200W. For 600W, press the Water Heater Function key until the ‘low power
setting’ icon is illuminated.
For 1200W, press the Water Heater Function key until the ‘high power setting’ icon is illuminated.
Note: The electric elements will still operate if the appliance is in gas ignition lock-out.
to turn on one electric

Gas and Electric Operation: For faster heating, the appliance can be operated with both gas and electric.
Press the Water Heater Function key until the desired function is illuminated:-
For 750W and Gas, press the Water Heater Function key until the desired setting is illuminated.
For 1500W and Gas, press the Water Heater Function key until the desired setting is illuminated.
Switching Appliance Off: Press the Water Heater Function key until ‘Off’ is illuminated.
Option 3 - Installing Vehicle Manufacturer Control Panel
If your vehicle is fitted with an alternative control panel, please refer to the control panel manufacturer’s instructions
or your vehicle handbook.
General Safety Notes: The operating pressure of the gas supply to the Water Heater must be 28-30mBar Butane or
30mbar -37mbar Propane.
To clean and sterilise inside the Water Heater, use diluted sterilising fluid and fully rinse through with clean water
afterwards. The outside of the appliance should not normally require cleaning. If it does, isolate the electrical supplies
and wipe down with a soft, damp cloth only. Do not use abrasive cleaners. Allow to fully dry before reconnecting the
electrical supplies. If descaling of this appliance is required, this can be done using ‘Kettle Klear’ or an equivalent
product and fully rinse through with clean water afterwards.
The Whale® Water Heater must be checked periodically by a Whale® Authorised Service Engineer, or competent
person, at least annually. This must be completed according to the practice in the country where it is used and
according to the Whale® instructions. Whale recommends annual testing of gas soundness and combustion by an
accredited LPG engineer.
Please Note: The water may drip from the discharge pipe of the pressure-relief valve during heating up. This pipe
must be left open to the atmosphere, must be installed in a continuously downward direction and in a frost-free
environment. The pressure relief valve must be operated regularly (at least twice a year) by turning the yellow lever
in the clockwise direction, to remove lime deposits and to check that it is not blocked.
The Water Heater is equipped with an electronic diagnostic system which will detect fault conditions ranging from
poor gas or d.c. supply to internal Water Heater malfunctions. In the unlikely event of a failure, the red LED on the
Control Panel will light. To diagnose the problem please refer to the table on page 15.
Option 1 - Whale Water Heater Control Panel
In the unlikely event of a failure, the red LED on the Control Panel will flash a number of times, pause, and repeat
until switched off. Count the number of flashes and refer to the table on page 15.
Option 2 - Whale Duo Control Panel
In the unlikely event of a failure, the red ‘ ! ’LED on the Control Panel will light. To identify the lockout press and hold,
the Water Heater Function Button. The temperature control bars will light to indicate the fault code e.g if 1 bar lights,
the fault code is 1, if 2 bars lights, the fault code is 2 etc. Identify the fault code and refer to the table on page 15.
14
9. TROUBLE SHOOTING
8. MAINTENANCE

Option 3 - Vehicle Manufacturer Control Panel
If your vehicle is fitted with an alternative control panel, please refer to the control panel manufacturer’s instructions
or your vehicle handbook.
Lockout Clearing Procedure
If the Water Heater lockout condition has been identified by 3 or 5 flashes/bars, the lockout must be cleared by
turning the d.c. power ‘off’ and then ‘on’ again at the master switch in the vehicle. Note that in some vans the d.c.
power going to the Heater can only be turned on or off by pressing the power button on the power supply unit (PSU).
See your vehicle handbook for more information. If the first attempt is unsuccessful, you can retry an additional 4
times. If the lockout still will not clear (identified by a solid LED (Whale Control Panel), or by all 12 temperature bars
being lit (Duo Control Panel)) please press the red Reset Button on the Water Heater once (see Fig. 31).
If the Water Heater lockout condition has been identified by 1 or 2 flashes/bars, the lockout must be cleared by
pressing the red Reset Button on the Water Heater once (see Fig. 31).
If the Water Heater lockout condition has been identified by a solid red LED (on the Whale Control Panel) or by all
12 temperature bars being lit (on Duo Control Panel) and / or five or more unsuccessful attempts to clear a lockout
have been made, the lockout must be cleared by pressing the red Reset Button on the Water Heater once (see Fig.
31).
Fig. 31. Front View - Reset Button Location
When using the Water Heater in winter, ensure the flue is not blocked by snow or fallen leaves etc. When not in use,
the Water Heater must be fully drained. This is particularly important during the winter months as a precaution
against freezing. To drain, switch off the water pump at either the pump switch or main switch, and then operate the
Drain Valve which is fitted in the system.
For effective draining, air must be allowed into the system, this can usually be achieved by opening the taps. The
Drain Valve must be left in the "open" position to ensure that all the water drains out. Open all the hot water taps in
the vehicle and operate the drain valve fitted in the system. The drain valve must be left in the “open” position to
ensure all the water drains out. 15
10. WINTERISING / DRAINING
271mm
Pressure Relief Drain Valve Red Reset Button
Number of
Flashes/Bars Lit Fault Remedy
1No Flame
Detected
2 Overheat
3
Low/High
Supply
Voltage
5Other /
Internal Fault
Solid
(i.e. all bars lit)
General
Fault
Check gas supply making sure there is gas in the bottle and no blockage in
the gas line. At temperatures below 5°C, use Propane gas rather than
Butane. Clear lockout as described below.
Minimum operating voltage is 10V d.c., maximum is 15V d.c., when
measured at the Water Heater. Check battery voltage. If between 10V d.c.
and 15V d.c., check connections between Water Heater and battery. Check
alternator or external battery charging. Clear lockout as described below.
Check that there is water in the appliance. Whale recommends that you wait
at least 5 to 10 minutes to allow the Water Heater to cool before clearing the
lockout as described below.
Attempt to clear lockout as described below. If this fails, contact Whale
Support on [phone].
Two faults have occured at the same time OR at least five lockout clearing
attempts have been unsuccessful. Clear lockout by pressing the red Reset
Button on the Water Heater as described below.

For installation or serviceable parts advice, please contact Whale® Customer Support:
Tel: [phone] Email: [email protected]
Description of Equipment: Gas and Electric Storage Water Heater
Manufacturer’s Declaration
We hereby declare, under our sole responsibility, that the above equipment complies with the provisions of the
following EC Directives:
Gas Appliance Regulation (EU) 2016/426 (GAR) on the approximation of the laws of the Member States relating to
appliances burning gaseous fuels.
Low Voltage Directive 2014/35/EU on the harmonization of the laws of the Member States relating to electrical
equipment designed for use within certain voltage limits.
Electromagnetic Compatibility Directive 2014/30/EU, on the approximation of the laws of the Member States relating
to electromagnetic compatibility.
CE mark first affixed: June 2009
Basis on which conformity is declared
The above equipment meets the protection requirements of the EMC Directive and the principal elements of the
safety objectives of the Low Voltage Directive.
Please contact Whale® if further details are required.
Richard Bovill
Engineering Director
The Whale® Water Heater is protected by the following patent and design registration:
Patent Number: EP2438364
WHALE® is a registered trademark of Munster Simms Engineering Ltd trading as Whale.
The Whale® Water Heater is covered by a 3 year warranty.
Please complete the enclosed warranty card and return to Whale. For warranty details, please see the enclosed
warranty statement.
©Copyright Whale 2019 - All rights reserved. Reproduction in whole or in part without permission is prohibited.
WHALE®, is a registered trademark of Munster Simms Engineering Limited, Bangor, Northern Ireland trading as
Whale. Whale’s policy is one of continuous improvement and we reserve the right to change specifications without
prior notice. Illustrations are for guidance purposes only.
Neither the accuracy nor completeness of the information contained in this or any product literature is guaranteed by
the Company and may be subject to change at its sole discretion.
Munster Simms Engineering Ltd.
2 Enterprise Road, Bangor, N. Ireland BT19 7TA
Tel: [phone]
www.whalepumps.com
Email: [email protected]
13. PATENTS AND TRADEMARKS
14. WARRANTY
16 Ref: 181.333_v4_0819_ammc_db
12. EU DECLARATION OF CONFORMITY
11. SERVICE SUPPORT DETAILS