Alva GWH2008L User manual

8L / 12L / 16L /20L
GAS WATERHEATER
/alvagas
/AlvaGas
TOLL-FREE NUMBER: 086 100 ALVA (2582)
|[phone] [e-mail] | www.alva.co.za
A division of Stingray Accessory Manufacturers (Pty) Ltd |.O. Box 30014, Tokai, 7966P

Please read the
instructions carefully
before use.
Retain this manual for
future reference.
IMPORTANT SAFETY INFORMATION
As with all gas appliances, misuse of this appliance or failure to fully follow
instructions before using your gas heater.
• Never use this appliance in an enclosed area such as a camper, tent or
car.
• THIS UNIT MUST BE THOROUGHLY CHECKED BEFORE USE.
•
use.
• DO NOT use this appliance if you do not clearly understand the
instructions and/or how to operate the controls.
• Phone the customer care line at 086 100 ALVA (2582) or email
[e-mail] for assistance.
• DO NOT leave the appliance unattended while in use.
• Ensure that the gas supply is turned OFF after use and while the
appliance is unattended.
• DO NOT move the appliance while in use.
• DO NOT place objects on or against the appliance.
•
Testing procedure outlined under ‘LEAK TEST’.
• NEVER use this appliance with a cylinder other than the size
recommended
• DO NOT unscrew the regulator while the appliance is on or if the cylinder
valve is open.
• DO NOT use an appliance you suspect is faulty.
•
valve (on the heater) and then make sure to close the cylinder valve.
•
and repairs. The guarantee for the heater will be rendered void if the
heater is serviced or repaired by any one other than an Alva appointed
technician.
•
to make sure the unit is safe and fault free.
• The operator is responsible for the safety of all third parties while the
appliance is in use.
•
the vicinity of this or any other appliance.
• If used on boats, use only above deck.
• Always use the appliance in an upright position.
• Keep children and pets away from the burner at all times.
• DO NOT operate the appliance under any overhead construction.
• Use only on a level, stable, non-combustible surface like bricks or
concrete
• Keep the fuel supply hose away from any heated surfaces.
• Should overheating occur or the gas supply fail to shut off, turn off the
gas supply at the cylinder.
•
appliance.
• This appliance will be hot during and after use. Use insulated oven
gloves or mitts for protection from hot surfaces.
• Always allow the appliance to cool before covering.
• Always cover the appliance when not in use.

IMPORTANT INFORMATION FOR THE USER
Gas
installer. All registered installers are issued with a card carrying their
registration number. Ask to be shown the card before allowing the installation
work to commence and make a note of the Installer registration number. Upon
completion of the installation, the installer is required to explain the
operational details of the appliance together with the safety instructions. You
will be asked to sign acceptance of the installation and be provided with a
when the installation is completed to your satisfaction.
Note that your invoice is required in the event that you wish make a warranty
claim.
IMPORTANT INFORMATION FOR THE INSTALLER.
This appliance may only be installed by a gas installer registered with the South
be installed in accordance with the requirements of SANS 10087-1 for use with
local bylaws applicable to the area. If in doubt, check with the relevant authority
before undertaking the installation. Upon completion of the installation you are
required to fully explain and demonstrate to the user the operational details and
safety practices applicable to the appliance and the installation.
CAUTIONS
(a) Don’t use the water heater in a sealed room or poorly ventilated place.
(b) The exhaust pipe must be installed to discharge exhaust gas outside.
gas valve immediately. The cause of the gas leakage should be tested and
the service center or gas company must be contacted.
(d) Before leaving the house or going to sleep, please be sure to shut off the
gas supply.
(e) Do not place any objects at the exhaust port or air inlet to avoid poisoning
caused by incomplete combustion.
(f) During operation, please pay attention to combustion situation. If there is an
abnormal combustion, you should close the gas valve immediately and then
contact the service center or gas company for maintenance.
(g) When the outdoor temperature drops below zero and freezing may
occur, the remaining water should be discharged out of heater after using it.
Water should be discharged in the following steps: turn off the gas supply
valve – turn off the tap water supply valve - remove the water discharge
valve to discharge remaining water entirely - re–install the water discharge
valve.
(h) The body of the water heater can get very hot during operation, so please
don’t touch any part of the water heater except for the switches.
(i) While using the water heater constantly, please pay attention to the
tight or there are cracks in the hose, you should stop using and make timely
maintenance or replace with a new one.

INDEX
INDEX
WARRANTY
GENERAL INFORMATION
WATER HEATER SET UP
FLASHBACK
LEAK TEST
FUNCTIONS & FEATURES
OUTLINE APPEARANCE
CONSTRUCTION & NAME OF PARTS
TECHNICAL PARAMETERS
INSTALLATION INSTRUCTIONS
CORRECT POSITIONING OF THE WATER
HEATER
INSTALLING THE FLUE
HOW TO SETUP AIR VENT
DAILY MAINTENANCE
MAINTENANCE
FREQUENTLY ASKED QUESTIONS
TROUBLE SHOOTING GUIDE
SPECIFICATIONS
AFTER SALES SERVICE
2
2
3-4
4
5
6
7
8
9
9-11
11-12
13
14
15-16
16
17
18-21
22
23
KEY
Important information
Cautions and
warnings.
Danger
Contact an approved
ALVA technician.
Do It Yourself

WARRANTY
PLEASE RETAIN YOUR PROOF OF PURCHASE FOR
WARRANTY CLAIMS.
ALVA warrants this appliance to be free of defects in material and
quality for a period of 12 months from date of original purchase.
This warranty covers the intended use of this appliance – within
a domestic setting and not for commercial or industrial purposes.
unauthorized repair will not be warranted.
Please retain all packaging material, as items returned without
original packaging material may be subject to a withholding fee.
Where this appliance is found to be defective, damaged, broken,
or does not work correctly for the intended purpose, you must
return the appliance to the retailer where it was purchased. The
warranty will only be effected with valid proof of purchase. Failure
to provide the proof of purchase will most likely result in the
repair or service required being chargeable.
If you have any questions while setting up or using this heater,
please visit www.alva.co.za or call 086 100 ALVA (2582) or e-mail
[e-mail]
GENERAL INFORMATION
Before using this appliance, please read through this manual and
make sure you understand everything. If you are not sure, please
call 086 100 2582 or visit www.alva.co.za for help.
This appliance
according to these instructions.
Keep this manual for future reference. This manual should be
read in conjunction with labeling on the product.
If this product is not what you want or need, please help Alva and
the environment by not damaging or destroying any part of the
packaging, the manual or the Styrofoam inserts. Always keep
your proof of purchase.
Keep these instructions for future use. If you lose this copy, you
can obtain a new copy from your dealer or online at
www.alva.co.za
Thank you for your
purchase of this
water heater.
Please read these
instructions carefully
before use and keep
them in a safe place,
for future reference.
Not using gas and/
or gas appliances
according to the
instructions is
extremely dangerous
and can lead to
property damage,
injury or death.
2

WATER HEATER SET UP
Setup using mounting brackets
This appliance may be mounted on to a non-combustible
surface. The appliance is to be mounted using the supplied
hardware. For a temporary mount the unit can be suspended
from the top bracket. If being mounted permanently the appliance
should be mounted using both the bottom and top tabs.
3
Outlet hose and shower head
assembly
Attach the shower nozzle to the
hose. Make sure to insert the
supplied rubber gasket at the
connection.
Connect the opposite end of the
bottom of the appliance labeled
“Water Output”. Make sure to insert
the supplied rubber gasket at this
connection.
Hand tighten only.
Rubber Gasket
Rubber Gasket
Rubber Gasket
-
necting a garden hose included. If
connecting a garden hose to the
using the supplied gasket to the
appliance labeled “Water Output”.
Hand tighten only. Ensure the
garden hose has a rubber gasket
inserted in the connector.
Attach a standard garden hose
appliance labelled “Water Input”.
Make sure to insert the supplied
rubber gasket at the connection.
Rubber Gasket
Optional garden hose connector to output
Water supply input assembly

4
Battery Installation
Install 2 ‘Type D’cell batteries in the compartment on the bottom
of the appliance. Make sure the batteries are installed in the
correct direction.
Clean the battery and device contacts prior to battery installation.
Always purchase the correct size and grade of battery.
DO NOT mix new and old batteries. Replace all batteries at the
same time.
Although any “D” Batteries will work, ALVA recommends using
VARTA Consumer Batteries.
Connecting the regulator to the appliance
a crescent or 7/8” end wrench
when tightening or loosening
the regulator hose.
Attach the gas regulator to the
appliance. The regulator will attach
the appliance labeled “Gas Input”.
on the end of the hose
Use 2 adjustable wrenches of
19mm and 22mm wrenches for
tightening the hose to the brass
valve of the appliance.
WARNING
Attempting to tighten
using a wrench on the
the bottom of the ap-
pliance could damage
the product and cause
a gas leak. Damage
may occur to the unit if
tightened improperly.
FLASHBACK
turn all the controls to the ‘OFF’ position. Wait 5 minutes before
attempting to relight the Water Heater. If the problem persists,
check for blocked venturi ports by removing the burner and
cleaning with compressed air or with a pipe cleaner. Check under
burner cap or aeration adjustment - Restart Water Heater.
If problem persists do not try to rectify the problem yourself as
this could result in serious injury and/or property damage.

• If bubbles appear, turn the cylinder valve OFF (clockwise)
and disconnect the heater from the gas cylinder.
• Tighten the connection and retry the leak test.
• If you are unsure or if you cannot tighten the connection,
place the cylinder outside in a cool, well-ventilated area and
contact Alva on 086 100 ALVA (2582).
• A leak between the heater and cylinder can lead to a high
extensive injury or even death.
LEAK TEST
The leak test must be carried out in a well-ventilated area, free
• With the cylinder connected to the heater. Open the cylinder
valve.
• Brush the connections (heater to cylinder) with a solution of
equal parts soap and water (make sure it’s foamy).
• A stream of bubbles forming indicates a gas leak. (See
Fig.G)
• If bubbles appear, turn the cylinder valve OFF (clockwise)
and disconnect the heater from the gas cylinder.
• Tighten the connection and retry the leak test
Fig.G
Foamy
bubbles
indicate a
leak
Connection
in assembly
Connections to be leak tested
Regulator into cylinder
Hose to regulator
Hose to appliance
5
DO NOT insert any
foreign objects into the
valve outlet. You may
damage the valve and
cause a leak.
A leak may result in
a property damage,
injury or even death.
NEVER attempt to
attach this appliance to
the self contained gas
system of a camper,
trailer or motor home.
http://www.
youtube.com
/watch?v=8L
pZ1B0m23Y
&feature=plcp
How to do
a leak test

6
FUNCTIONS & FEATURES
Water controlled automatic ignition:
If the hot water tap is switched on, the unit will automatically
ignite and deliver hot water to the tap.
Auto cut-off protection:
Numerical control automatic ignition, the auto cut-off protection
will extinguish the gas supply immediately.
Low water pressure startup function:
When water supply pressure is lower to 0.025Mpa, the water
heater cannot be ignited, Fit water pressure pump to boost
pressure.
Anti-freeze protection:
When temperature is very low, remove the water discharge valve
to discharge accumulated water inside the water pipe to avoid
damage caused by freezing.
High-pressure protection:
Once water pressure is over 0.8Mpa, the water-out valve will
release water and lower the pressure. This will happen
automatically to avoid damage.

PLEASE SEE THE OUTLINE APPEARANCE AS FOLLOWS:
7
Temp Display
ALVA Water Heater
(GWH2008L, GWH2012L
GWH2016L & GWH2020L)

CONSTRUCTION & NAME OF EACH PART
(PARTS LIST)
8
Water adjustment valve

TECHNICAL PARAMETERS
INSTALLATION INSTRUCTIONS
A. CAUTION:
to discharge exhaust gas. During operation the water heater consumes oxygen, so an air
inlet hole must be made in any room where installed.
• Not installing an exhaust pipe as well as poor circulation could lead to a lack of oxygen
and result in CO (Carbon monoxide) & CO² (Carbon dioxide) poisoning.
• Do not expose the water heater to strong wind or rain.
or death.
• Never use an aged or cracked gas pipe/hose.
• Do not install any water heater near combustible or volatile substances.
• Ensure adequate water pressure of at least 0.025Mpa is achieved in order for the unit to
operate.
• Do not install your water heater near any other appliance that generates heat.
• Your water heater shouldn’t be installed within 5m of a stairwell or an emergency exit.
9
Model
Type of Gas
Rated Gas Pressure
Heat Load
Exhaust Discharge
Mode Control Model
Ignition Model
Safety Device
Applicable Water Pressure Hot Water Outlet Per Minute
Gas Pipe
Cold Water Pipe Hot Water Pipe G1/2 Pipe
0.025-1.0Mpa
10 - Layer Safety Protection
Pulse Double Ignition
Water-Pressure Controlled
Flue Duct Type
LPG
LPG
LPG
LPG
2800Pa
2800Pa
2800Pa
2800Pa
GWH2012L
GWH2008L
GWH2016L
GWH2020L
32Kw
16Kw
40Kw
24Kw
12L/min
8L/min
20L/min
16L/min

10
2. Pipe Installation
NOTE:
hose MUST NOT be longer than 2 meters. The hose should NOT be
fed directly through a wall, cupboard or behind/above the geyser.
We DO NOT recommend using hose for the gas connection. This will
e
recommend the use of 15mm copper or stainless steel pipe.
(a) Connecting of cold water supply pipe:
• The water inlet pipe must be connected using a metal tube, or
by a rigid water pipe.
• The inner diameter of the inlet pipe (including the valve)
shouldn’t be less than 8mm.
• A cold water valve should be installed with the water inlet pipe.
correctly.
inlet joint tightly.
(b) Connecting of the hot water supply pipe:
• The hot water outlet pipe must be connected using a metal tube
or a rigid water pipe or a rubber pipe with a hand held shower
• The inner diameter of the hot water pipe outlet pipe (including
the valve) shouldn’t be smaller than 8mm.
(c) Once installed, open cold water valve to its maximum in order to
leakage.
(d) Installation of gas supply pipe:
the pipe with the clip.
valve, and pressurise your water heater to check whether there
is a gas leak at the joint using soapy water.
3. Installation of exhaust device:
(a) Make a cutout in your wall / ceiling that is wide enough in
hole should not be less than 250mm above the exhaust pipe
unobstructed.

11
CORRECT POSITIONING OF THE WATER HEATER
(d) Make an air inlet at least 0.06 square meters on the lower part of
your wall.
wall ( the thickness is about 20mm). (Refer to page 12.)
must be as short as possible and the joint with the funnel must be
leak free.
(c) Install an exhaust fan at a level higher that the water heater.

12
proof, please underlay a
wider than 100mm big than
the actual water heater
from side to side - top to
bottom.
• Add a 20mm spacer
between the board and
the wall - See image.
MOUNTING YOUR WATER HEATER
Mount the heater onto the wall
hanger vertically.
See image.
HANGER POSITION
The installation of the hanger should be in a horizontal position.
hanger
drill hole on the wall
hole depth > plastic swell tube + (3-5)mm
hanger
plastic swell tube
screw
hanger
plastic swell tube
screw
separation bush

13
INSTALLING THE FLUE
NO exhaust fumes leak into the house/bathroom.
3m, and the vent should be face slightly down,
than 3 pieces.
diverter of the geyser, before venting outside,
should not be less than 250mm.
exhaust gasses.
7. Make sure that there is no air / fumes leaking at
rivets to secure these sections.
the horizontal distance should be no more than 50%
of that distance - i.e.
exceed.
bolt
1:100
250
air
air in

AIR VENT SET UP
should be properly sealed to prevent exhaust fumes entering
the room.
C.) Air Vent Size Chart:
14
PRECAUTIONS
As a precaution, if you are away from home and the water heater will
not be in use for a period of time, always CLOSE THE CYLINDER
VALVE.
empty cylinder with a new cylinder.
For higher temperature, turn
more gas and less water
MAXMIN
GAS
°C
For lower tempearature, turn
less gas and more water
MAXMIN
GAS
°C

15
TEMPERATURE CONTROL
Adjust output temperature using the clearly marked control on the
geyser.
SHUT-OFF
The water heater will shut-off automatically when you close the
warm water tap. It will also shut-off if you close the cold water inlet
tap to the geyser, or if you close the cylinder valve.
- The geyser must not be used for anything other than for heating
water.
NOTE:
The heater should not be used continously for periods longer than
20 minutes at a time.
DAILY MAINTENANCE
1. Check the gas supply pipe (rubber hose) regularly to see if it is
in good condition, or there should be no aging, cracking,
leakage or bends.
2. Regularly check if there is water leakage or gas
leakage.
3. Regularly clean surface of water heater body to remove
dirt or dust with a wet cloth, and then use the dry cloth to wipe
off the moisture. If not easy to remove, please use a natural
detergent to wipe off.
Max
turn down water valve
MAXMIN
GAS
°C
water in Min

16
4. Do not use strong detergents or benzene to clean plastic parts
or printed surfaces.
5. Use a dry cloth to clean dirt on the ignition.
inlet regularly.
7. During operation, please pay attention to the height of the
and combustor, searching for dust or dirt every 6 months.
All servicing must be done by a registered technician.
IF YOU SMELL GAS
1. Do not attempt to
light appliance
2. Extinguish any
open fame
3. Disconnect from
fuel supply
Clean the entire
appliance annually and
tighten all hardware
on a regular basis (1-2
times a year or more
depending on usage).
MAINTENANCE
• Always make sure the heater is
OFF and cool, with the cylinder
valve closed, before conduct-
ing any maintenance.
• Your heater should be checked
technician.
• If faults are suspected or
detected, stop using the heater
and contact ALVA.
• Clean the exterior and stor-
age area of your heater when
required to remove dust and
prevent lint build up.
• DO NOT use abrasive products
to clean the heater; these may
damage the paint work.
• Clean the exterior body with a
damp cloth.
If any part of the heater is in need of replacing, use only original
Alva parts. Using any other spare parts is dangerous and will
void the warranty.
Fig.K
Core
GOOD
BAD
Not enough air
BAD
Too much air

17
http://www.
youtube.com/
watch?v=Ya
vsYE8nzCw
&feature=plcp
How to test if
your cylinder
is overfilled
FREQUENTLY ASKED QUESTIONS
Q: Why is there an odour when I use a gas heater?
A: All gas appliances give off an odour. This could be
harmful if inhaled for extended periods of time. This
“smell” is normal, and it does not mean that you have
a gas leak. The smell of raw gas (just before you ignite
the appliance) differs to the smell coming from the
appliance when it is in use. The odour is added to allow
easy gas detection.
Q: Why must there be ventilation when using a gas
appliance?
A: Whenever fuel (LP Gas in this case) is burned,
the smoke to exit the house. Even though a gas
appliance does not generate smoke, it still generates
carbon monoxide and carbon dioxide, which can be
dangerous if not diluted by fresh air ventilation by
leaving a door or window open in the same room.
Q: How long will the gas in my cylinder last?
A: This depends on how you use your appliance. It is easy
to calculate your gas consumption. Take the capacity of
the gas cylinder in grams (i.e. 3000g for a 3 kg
cylinder) and divide it by the gas consumption of the
heater, on your desired setting (refer to the
. The
answer to the calculation is the approximate number of
hours that your heater will burn for.
Q:
A: The best method to determine if your cylinder is over-
cylinder weight – this gives you the weight of your gas.
If this gas weight exceeds your cylinder design weight
(3kg) then return the cylinder to your gas
supplier.