Vesta VC 100 (LP) COMBI User manual

WARNING
If the information in these instructions is not followed exactly a fire or explosion may result causing, ,
property damage personal injury or death, .
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
What to do if you smell gas
●Do not try to light any appliance.
●Do not touch any electrical switch.
●Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions’ . ’ .
●If you cannot reach your gas supplier call the fire department, .
Installation and service must be performed by a qualified installer service agency or the gas supplier, .
The installation must conform with local codes or in the absence of local codes the National Fuel Gas, ,
Code ANSIZ223 1 NFPA 54 and or CSA B149 1 Natural Gas and Propane Installation Code, . / / . , .
Keep this manual near this boiler for future reference
whenever maintenance or service is required.
User’s Manual
Condensing Combi Boilers-
Model
NCB-150E
NCB-180E
NCB-210E
NCB-240E
●Do not use any phone in your building.
H
NCB-210E
NCB-240E
Model
NCB-150E
NCB-180E
Model VC 100 (LP) COMBI
VC 120 (LP) COMBI
VC 140 (LP) COMBI

2 Contents
Contents
1. Safety Information 3
2. About the Boiler 6
2 1. Names of Components 6
2 2. The Front panel 7
3. Operating the Boiler 8
3 1. Turning the Boiler On or Off 8
3 2. Adjusting the CH temperature 8
4. Maintaining the Boiler 10
4 1. How to clean the hot water filter 10
4 2. How to clean the heating filter 11
4 3. How to supply the water 12
13
5. Troubleshooting 21
5 1. Check points before making repair work order 21
5 2. Displayed error code 22
4 4. Maintenance Schedules

Safety Information 3
WARNING
If you do not follow these instructions exactly a fire or explosion,
may result causing property damage personal injury or loss of,
life.
This appliance does not have a pilot It is equipped with an.
ignition device which automatically lights the burner Do.
not try to light the burner by hand.
BEFORE OPERATING smell all around the appliance area for
gas Be sure to smell next to the floor because some gas is.
heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
●Do not try to light any appliance.
●Do not touch any electric switch do not use any phone;
in your building.
●Immediately call your gas supplier from a neighbor s’
phone Follow the gas supplier s instructions. ’ .
●If you cannot reach your gas supplier call the fire,
department.
●Do not return to your home until authorized by your
gas supplier or the fire department.
Use only your hand to push in or turn the gas control knob.
Never use tools If the knob will not push in or turn by hand. ,
don t try to repair it call a qualified service technician’ , .
Force or attempted repair may result in a fire or explosion.
Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system
and any gas control which has been under water.
1. Safety Information
The cautions issued by this user’s manual include critical
information for the safety while using the product. When the
user fails to adhere to the following requirements can cause
For safety, according to the level of danger, we have indicated
by “DANGER”,“WARNING”,“CAUTION”and the definitions for
these terms are as follow
The definitions of the symbols indicated on the product and
user’s manual are as follows
death, serious damages, and a great property loss.
DANGER
WARNING
CAUTION
When the required terms are not followed, it
indicates an urgent danger that may cause
death or serious bodily injury
When the required terms are not followed, it
indicates latent danger that may cause death
or serious bodily injury
When the required are not followed, it indicates
latent danger that may cause light injury or
semi-serious injuries

4 Safety Information
DANGER
This boiler s water temperature is set to 120 F 49 C at the’ ° ( ° )
factory for your safety and comfort Increasing the temperature.
increases the risk of accidental scalding Water temperatures at.
or above 125 F 52 C can cause instant scalding severe burns° ( ° ) , ,
or death Before you decide to change the temperature setting. ,
read the following charts carefully.
Water
Temperature
Time in which a young child can suffer a
full thickness (3rd degree) burn
160 F 70 C° ( ° ) Less than 1 second
140 F 60 C° ( ° ) 1 second
130 F 55 C° ( ° ) 10 seconds
120 F 49 C° ( ° ) 10 minutes
100 F 37 C° ( ° ) very low scald risk
DANGER
HOT
BURN
To prevent burns:
●Use the lowest operating temperature setting necessary to
provide comfortably hot water- .
●If your household has children or elderly or disabled
residents consider using a lower temperature setting, .
●Read all the instructions in this manual carefully before
changing the temperature setting.
●Feel the water before using it on children the elderly or the, ,
disabled.
●If it is necessary to set the water temperature above 120 F°
( ° ), -49 C consider installing a thermostatically controlled
mixing valve or temperature limiting valve Contact a- .
licensed plumber or your local plumbing authority for more
information.
WARNING
●Shut off the gas supply if the boiler is damaged.
Have your installer or plumber show you the location of the
gas shut off valve and demonstrate how to close the valve.
If the boiler is damaged as a result of overheating fire flood, , ,
or any other reason close the manual shut off valve and do,
not operate the boiler again until it has been inspected by a
qualified technician.
●Do not store or use gasoline or other flammable liquids
near this boiler.
Doing so may result in fire or explosion.
●Do not place combustibles such as newspapers or,
laundry near the boiler or venting system, .
Doing so may result in a fire.
●Do not place or use hair sprays spray paints or any other, ,
compressed gases near the boiler or venting system,
including the vent termination.
Doing so may result in fire or explosion.
●Do not operate the boiler with the front cover opened.
Doing so may result in fire or carbon monoxide CO( )
poisoning which may result in property damage personal, ,
injury or death, .
●Do not operate this boiler without proper venting.
Doing so may result in fire or carbon monoxide CO( )
poisoning which may result in property damage personal, ,
injury or death Inspect the vent termination and air intake, .
supply annually to ensure proper operation of the boiler.
Turn off and discontinue use of the boiler if any of the vent
pipes vent elbows or intake pipes are damaged in any way, , ,
separated at a joint or show evidence of corrosion rusting, , ,
or melting.
●Do not touch the power cord or internal components of
the boiler with wet hands.
Doing so may result in electric shock.
●Do not make any electrical connections before turning
off the electrical power supply at service entrance panel.
Doing so may result in severe personal injury or death.

Safety Information 5
CAUTION
●Do not attempt to repair or replace any part of the boiler,
unless it is specifically recommended in this manual.
For all other service contact an authorized technician or,
licensed professional Improper adjustments alterations. , ,
service or maintenance may lead to property damage, ,
personal injury or death and will void your warranty, .
●Do not operate the boiler if you feel something is wrong
with it.
Doing so may result in product damage or personal injury.
●Do not allow children to operate or access the boiler.
Doing so may result in product damage or personal injury.
●Do not attempt to change the DHW water temperature
while the boiler is being used.
Doing so may result in personal injury.
●Do not turn on the boiler unless the water and gas
supplies are fully opened.
Doing so may damage the boiler.
●Do not turn on the water if the cold water supply shut-
off valve is closed.
Doing so may damage the boiler.
●Do not use this boiler for anything other than its
intended purpose as described in this manual, .
●Do not remove the front cover unless the power to the
boiler is turned off or disconnected.
Failure to do so may result in electric shock.
●When servicing the controls label all wires prior to,
disconnecting them.
Failure to do so may result in wiring errors which can lead to,
improper or dangerous operation.
●Do not use unapproved replacement or accessory parts.
Doing so may result in improper or dangerous operation
and will void the manufacturer s warranty’ .
●Do not place anything in or around the vent terminals,
such as a clothes line that could obstruct the air flow in,
or out of the boiler.
●This boiler has been approved for use in the USA and
Canada only.
Using the boiler in any other country will void the
manufacturer s warranty’ .
●Should overheating occur or the gas supply fail to shut
off turn off the manual gas valve to the appliance, .
Vapors from flammable liquids explode and catch fire causing death or severe burns.
Do not use or store flammable products such as gasoline, solvents or adhesives
in thesame room or area near the .
keep flammable products:
1. Far away from .
2. In approved containers.
3. Tightly closed
4. Out of children's reach
boiler
boiler
Vapors:
1. Cannot be seen
2. Vapors are heavier than air
3. Go a long way on the floor
4. Can be carried from other rooms to the
main burner by air currents.
WARNING: California proposition 65 lists chemical substances know to the state to
cause cancer, birth defects, death, serious illness or other reproductive harm.
This product may contain such substances, be their origin from fuel combustion
(gas, oil) or components of the product itself.
A temperature and pressure relief valve listed as complying with the standard for Relief
Valve and Automatic Gas Shutoff Devices for Hot Water Supply System, ANSI Z21.22.
shall be installed at the time of installation of the heater in the location specified by the
manufacturer. Local codes shall govern the installation of relief devices for safety
operation of the . The relief valve must not be removed or plugged.boiler
DANGER
DANGER
temperature over 125 can cause severe
burns instantly or death from scalding.
Children, disabled and elderly are at the highest risk of being
scalded.
Feel water temperature before bathing or showering.
Temperature limiting valves are available, ask professional
person.
The boiler’s water ℉
FLAMMABLES Flammable Vapors
H TO
FOR YOUR SAFETY READ BEFORE OPERATING
OPERATING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE
WARNING: If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
A. This does not have a pilot. It is equipped with an ignition device
automatically lights the burner. Do not try to light the burner by hand.
B. BEFORE OPERATING smell all around the
smell next to the floor because some gas is heavier than air and will settle on
the floor.
WHAT TO DO IF YOU SMELL GAS
DO not try to light any appliance
2 DO not touch any electric switch; do not use any phone in your building.
3 Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
4 If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to turn the gas valve knob. Never use tools. If the knob will not
turn by hand, don't try to repair it. Call a qualified service technician.
Force or attempted repair may result in a fire of explosion.
D. DO not use this if any part has been under water. Immediately call a
service technician to inspect the water heater and to replace any damaged
appliance which
appliance area for gas. Be sure to
1.
.
.
boiler qualified
parts.
.
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Remove Front cover.
4. Turn gas shutoff valve “off”.Handle will be across the piping.Do not force.
5. Install Front cover.
1 STOP! Read the safety information above.
2
3. Turn off all electric power to the appliance.
4.
Do not to light the burner by hand.
6. Turn the gas valve .
7. Wait five (5)minutes to clear out any gas. If you then smell gas, STOP! Follow "B" in
the safety information above on this label. If you don't smell gas, go to the next step.
8. Turn the gas valve .
9.
10 Turn on all electric power to the appliance.
11
12. If the appliance will not operate, follow the instructions "To Turn Off Gas To Appliance"
and call your service technician or gas supplier.
.
. Set the thermostat to lowest setting.
try
5. Remove front cover.
to “off” Handle will be across the piping, do not force.
to “on”.Handle will be in line with piping
Install Front cover
.
. Set the thermostat to desired setting.
This appliance is equipped with an ignition device which automatically lights the
burner.
Vapeurs inflammables
Comment couper l'admission de gaz de l'appareil
DANGER
DANGER
INFLAMMABLES
Vapeurs inflammables
Chaude
Les vapeurs:
1. Sont invisibles
2. sont plus lourdes que l'air
3. se propagent sur le plancher sur une grande
distance
4. peuvent etre transportees apartir d'autres
pieces, jusqu'ala flamme de veilleuse,
par les courants d'air
Garder les produits inflammables:
1. Tres loin du
2. Dans des recipients approuves
3. Dans des recipients fermes
hemetiquement
4. Hors de la portee des enfants.
Chaudière
Les vapeurs des liquides inflammables exploseront, s'enflammeront et entraineront
la mort ou des brulures graves:
Ne pas utiliser ni stocker des produits inflammables, comme de l'essence, des solvants
ou des adhesifs, dans la meme piece que le , ni pres de celui-ci.Chaudière
Pour votre securitelisez avant d'allumer
1. Réglez le thermostat au plus bas.
2. Coupez l'alimentation électrique de l'appareil si le service doit être exécuté.
3. Retirer le couvercle avant.
4. Mettez arrêt vanne gaz "off" .Handle sera à travers le piping.Do pas forcer.
5. Installez le couvercle avant.
1. ARRÊTEZ! Lisez les consignes de sécurité ci-dessus.
2. Réglez le thermostat au plus bas.
3. Coupez l'alimentation électrique de l'appareil.
4. Cet appareil est équipé d'un dispositif d'allumage qui allume automatiquement
le brûleur. Ne pas essayer d'allumer le brûleur manuellement.
5. Retirez le couvercle avant.
6. Tourner le robinet de gaz à "off" .Handle sera à travers la tuyauterie, ne pas forcer.
7. Attendez cinq (5) minutes pour laisser échapper tout gaz. Si vous sentez une odeur
de gaz, ARRÊTEZ! Suivez «B» dans les consignes de sécurité ci-dessus sur
cette étiquette. Si vous ne sentez pas de gaz, passez à l'étape suivante.
8. Tournez la vanne de gaz "sur" .Handle sera en ligne avec la tuyauterie.
9. Installez le couvercle avant
10. Mettez l'alimentation électrique de l'appareil.
11. Réglez le thermostat à la position désirée.
12. Si l'appareil ne fonctionne pas, suivez les instructions «Pour couper le gaz de
l'appareil» et appelez votre technicien d'entretien ou fournisseur de gaz..
A. Cet appareil est muni d'une veilleuse qui doit etre allumee manuellement.
Respectez les instructions ci-dessous ala lettre.
B. Avant d''allumer la veilleuse, reniflez tout autour de l'appareil pour deceler une
odeur de gaz. Reniflez pres du plancher, car certains gaz sont plus lourds
que l'air et peuvent s''accumuler au niveau du sol.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
1 Ne pas tenter d'allumer d'appareil
Ne touchez aaucun interrupteur ; ne pas vous servir des telephones se trouvant
dans le batiment.
Appelez immediatement votre fournisseur de gaz depuis un voisin.
Suivez les instructions du fournisseur.
Si vous ne pouvez rejoindre le fournisseur, appelez le service des incendies.
C. Ne poussez ou tournez la manette d''admission du gaz qu'ala main ; ne jamais
utiliser d'outil. Si la manette reste coincee, ne tentez pas de la reparer ; appelez un
technicien qualifie. Le fait de forcer la manette ou de la reparer peut declencher
une explosion ou un incendie.
D. N''utilisez pas cet appareil s'il a eteplongedans l'eau, meme partiellement.
Faites inspecter l'appareil par un technicien qualifieet remplacez toute partie du
systeme de controle et toute commande qui ont eteplonges dans l'eau.
.
.
.
.
2
3
4
AVERTISSEMENT. Quiconque ne respecte pas ala lettre les instructions
dans la presente notice risque de declencher un incendie ou une explosion
entrainant des dommages, des blessures ou la mort.
L'eau aune temperature superleure a125 peut instantanement
causer des brulures graves ou entrainer la mort.
Le risque de brulures est plus eleve chez les enfants,
les personnes handicapees et les personnes agees.
Lisez la noticed' instruction avant de regler la temperature du
.
Verifier la temperature de l'eau avant de prendre un bain ou
une douche.
Des robinets limiteurs de temperature sont disponibles.
Consultez la notice.
ў
Chaudière
Une vanne de decharge de pression et de temperature repertoriee, conformement aux
normes relatives aux vannes de decharge et aux dispositifs d'arret automatique de gaz
pour le systeme d'alimentation en eau ANSI Z21.22, doit etre installee lors de l'installation
du , a un emplacement specifie par le fabricant. l'installation des dispositifs de
decharge doit respecter les reglements locaux afin de garantir un fonctionnement securise
du . La vanne de decharge ne doit etre ni deplacee ni bouchee.
Chaudière
Chaudière
Instructions d'allumage

6 About the Boiler
2.1 Names of Components
2. About the Boiler
[Bottom of VC 100 COMBI]
VC 100 COMBI
[Bottom of VC 120,140 COMBI]
VC 120, 140 COMBI

About the Boiler 7
2.2 The Front Panel
The front panel allows you to adjust the temperature and view the operating status or error codes Remove the protective sheet from the front.
panel before using it.
2.2.1 Icons and Digital Display
The icons and digital display on the front panel provide important
information required for the boiler s operation Refer to the’ .
following table for detailed information.
Operating in CH / DHW mode Turn ON / OFF
Operation in DHW mode Change the Mode Button
Repeat operation mode Up Button
FAN revolutions per minute (RPM) Down Button
2.2.1.1 Lamp display 2.2.1.2 Buttons
Flame on
DHW Outlet Temperature display
Diagnostics display

3. Operating the Boiler
2. Press the Up or Down buttons until the desired+ ( ) – ( )
temperature appears on the display.
You can adjust the temperature while the display is blink for 5 seconds.
Once the display stops flashing the temperature setting is stored, .
3 1 Turning the Boiler On or Off.
1. To turn the boiler on or off press the Power button,
When power is ON, the boiler appear the ‘ ‘ mode and CH
Temperarure. If the boiler is not operating for 30 seconds, “A6"
Error will appear I on the Front panel.
3 2 Adjusting the CH(Space Heating).
3 2 1 Adjusting the Space Heating Temperature. .
To adjust the heating temperature:
1.Press the Mode button once The space heating display).‘ ‘(
Temperature
is blink for 5 seconds and appear the space Heating outlet
temperature.
If don’t press the Up or Down buttons, appear the setting+ ( ) –( )
temperature value after blank for 5 seconds.
Temperature range Adjusting the water
temperature
86 , 120-180 Fahrenheit mode℉ ( )℉
30 ℃( ), 50-80 Celsius mode℃ 2 or 1 increments℉ ℃
8Operating the Boiler

Operating the Boiler 9
3 2 2 Adjusting the DHW (Domestic Hot Water). .
WARNING
Before adjusting the water temperature read To prevent,“
burns o efully Water above 120 52 can:”n page 6 car . ( )℉ ℃
cause instant scalding severe burns or death, , .
To adjust the water temperature:
1.
2.
Press the Mode button. The ‘ ‘ (DHW display) is blink for
Press Up or Down buttons until the desired temperature+ ( ) –( )
appears on the display.
You can adjust the temperature while the display is blink for
5 seconds. Once the display stops flashing the temperature,
Temperature range Adjusting the water
temperature
98 120 Fahrenheit mode- ( )℉
37 49 Celsius mode- ( )℃2 or 1 increments℉ ℃
120 140 Fahrenheit mode- ( )℉
49 60 Celsius mode- ( )℃
Press for 2 seconds to adjust in
5 or 2 increments℉ ℃
Temperature
5 seconds and appear the DHW temperature.
setting is stored.
If don’t press the Up or Down buttons, appear the setting+ ( ) –( )
temperature value after blank for 5 seconds.

If install the unit first time or use for long time, rooms are not as
well heated as before even can hear strange noise due to dirt
in pipe and ir cause shorten the use life
Please remove the dirt when use first time in winter and more
than twice in a year
CAUTION
Please unplug the unit from the power source when you clean
- When clean with water or wet towel, it may cause electric shock
Please follow the below when you clean the heating filter
- When clean the heating filter, hot water in the appliance may
cause burns
1.Please unplug the unit from the power source.
2.Please close the gas shut-off valve.
3.Please close the domestic hot water inlet valve
5.Please clean the domestic hot water filter with clean water.
②Please take out the filter from DHW nipple attached the unit.
6.After cleaning the domestic hot water filter, please reattach it in
reverse order iten 4.
7.Please open the domestic hot water inlet valve.
8.Please plug the unit to the power supply.
9.Please open the gas shut-off valve.
4.①Please unfasten DHW outlet nut.
10 Maintaining the Boiler
4.1 How to clean the hot water filter
4. Maintaining the Boiler

1.Please unplug the unit from the power source.
2.Please close the gas shut-off valve.
3.Please close the domestic hot water inlet valve
6.Please separate a heating filter.
7.Please clean the heating filter with clean water.
4.Please drain the water about 1.32 gal in the
appliance by turning the drain valve to the left
CAUTION
When you running out the hot water, be careful not to burn
yourself since there may be hot water
5.Please detach the fixing clip of the filter (A) by using tool.
(Please pull down the heating filter)
CAUTION
When tou running out the hot water, be careful not to burn
yourself since there may be hot water
8.After cleaning, please reattach the heating filter.
②Reinsert the fixing clip of the heating filter.
①Reinsert the heating filter.
③Please insert the drain screw valve by turning to the right.
9.Please open the domestic hot water inlet valve.
Maintaining the Boiler 11
4.2 How to clean the heating filter

Please unplug the unit from the power source.
10.
11.Please open the gas shut-off valve then please refill
the water by method of refilling water.
4.3 How to supply the water
When the temperature control indicator lamp is on or “A”mark, the power
lamp is red, heating loop does not have enough water to operate.
Please fill the loop by opening water supply valve and install auto⑤
feeder to heating loop.
(Normal operation pressure of closed loop : 12~18psi)
①Heating inlet connection
②Domestic hot water outlet connection
③Gas inlet connection
④Domestic hot water inlet connection
⑤Water supplement valve
⑥Heating outlet connection
⑦Condensed water drain
12 Maintaining the Boiler

Maintaining the Boiler 13
4.4 Maintenance Schedules
Owner maintenance
Daily
●
Check boiler area
●Check pressure temperature gauge/
Monthly
●Check vent piping
●Check air piping if installed( )
●
Check air and vent termination screens
●Check relief valve
●Check condensate drain
●Check air vents
Periodically
●Test low water cutoff if used( )
●Reset button low water cutoff( )
Every 6 months
●
Check boiler piping gas and water for( )
leaks
●Operate relief valve
End of season
months
●Shut boiler down unless boiler is used(
for domestic hot water)
Service technician See the following instructions( )
Annual Start up-
General:
●Address reported problems
●Inspect interior clean and vacuum if;
necessary
●Clean condensate trap and fill with
fresh water
●Check for leaks water gas flue( , , ,
condensate)
●Verify flue and air lines in good
condition and sealed tight
●Check system water pressure system/
piping expansion tank/
●Check control settings
●Check ignition and flame rod clean and(
reposition)
●Check wiring and connections
●Flame inspection stable uniform( , )
●Flame signal
If combustion or performance indicate
need:
●Flush heat exchanger
●Remove and clean air intake filter.
●Remove and clean space heating
strainer.
●Remove and clean inlet water filter.
WARNING
●Follow the service and maintenance procedures given
throughout this manual and in component literature
shipped with the boiler Failure to perform the service and.
maintenance could result in damage to the boiler or system.
●Failure to follow the directions in this manual and
component literature could result in severe personal injury,
death or substantial property damage, .
●The boiler should be inspected annually only by a qualified
service technician In addition the maintenance and care. ,
of the boiler must be performed to assure maximum boiler
efficiency and reliability Failure to service and maintain the.
boiler and system could result in equipment failure.
●Electrical shock hazard Turn off power to the boiler–
before any service operation on the boiler except as noted
otherwise in this instruction manual Failure to turn off.
electrical power could result in electrical shock causing,
severe personal injury or death.
Addressing the Reported Problems
●Inspect any problems reported by the owner and correct before
proceeding.
Inspecting the Installation Area
1.Verify that boiler area is free of any combustible materials,
gasoline and other flammable vapors and liquids.
2.Verify that air intake area is free of any of the contaminants
listed in Installation Manual If any of these are present in the.
boiler intake air vicinity they must be removed, .
If they cannot be removed reinstall the air and vent lines per,
the Installation Manual.
Inspecting the Boiler Interior
1.Remove the front cover and inspect the interior of the boiler.
2.Vacuum any sediment from inside the boiler and components.
Remove any obstructions.

14 Troubleshooting
5.1 Checkpoints before making repair work order
Clean the filter.(Please refer 11 page)
Clean the filter.(Please refer 10 page)
5. Troubleshooting

5.2 Displayed error code
AE
Troubleshooting 15

LIMITED PARTS WARRANTY
The combi boiler ‘VC’
VESTA
VC the combi boiler
VC
VESTA
VESTA
VC
VESTA
VC
VC
VESTA.
VC
VC
VESTA.
VC
VESTA
VESTA
VESTA
16 Warranty
VC
VC
VC

Register your combi boiler
VESTA combi boiler
VESTA

Getting Service
If your boiler requires service you have several options for getting service, :
●Contact Technical Support at 1 800 761 0053 or on the website: www.vestahws.com---
●For warranty service always contact Technical Support first, .
●Contact the technician or professional who installed your boiler.
●Contact a licensed professional for the affected system for example a plumber or electrician( , ).
When you contact Technical Support please have the following information at hand, :
●Model number
●Serial number
●Date purchased
●Installation location and type
●Error code if any appears on the front panel display,
User’s Manual
Condensing Combi Boilers-
Version 1 0 May 30 2016: . ( , )