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3.  USER SECTION 

3.1.  GENERAL WARNINGS FOR USER 

3.1.1. Use of Combi

If a gas odour is present, close home entrance line and gas valves 
of your combi or close the LPG tank valve or tube valve if bulk gas 
is used. Do not switch  electricity buttons and do not do anything 

those may create sparks. Call the gas company or Authorized Service. (See 
1.3 GAS LEAKAGES, Page 6)

First start should be performed by the Warmhaus Authorized Service for 
your safety and preventing void warranty scope. Our Authorized Service 
will give you required information about use of combi after performing 
initial controls of your combi and starting for the first time.

Perform below given controls prior to starting to use:
•  Ensure that radiator/heating system, tap water and gas valves located 

under your combi are open, the radiator installation pressure is between 
1 - 1,5 bar on the manometer located under the Combi and system air is 
discharged,

•  Gas is available in your gas line (you can control by igniting one of your 

gas ovens),

•  Combi electrical fuse is open,
•  No flammable materials and products are available near to the Combi,
•  Ensure exhaust gas flue set output is not blocked,
•  If a room thermostat or control device is connected, ensure that it is in 

the ON position.

If you  shut-off the combi for a long period, perform below written 
operations:
•  Discharge the radiator installation water not containing anti-freeze,
•  Close combi electrical fuse, gas valve, radiator and tap water valves! If 

you will shut-off the combi for a short period, perform below written 
operations:

•  Do not close combi electrical fuse, gas valve, radiator and tap water 

valves!

•  Leave the Combi at Summer position and activate its Frost Protection 

function,

Shut-off the combi during maintenance and repair operations to be 
performed around exhaust gas discharge flues. After operations are 
completed, have the combi controlled by Warmhaus Authorized Service 
prior to starting the combi.

Follow below given main rules: 

•  Do not clean external frame of combi while combi is functioning and do 

not use flammable materials.

•  Do not touch the combi with wet hands or feet; also without shoes and 

with bare feet.

•  Do not unpick electricity cables.
•  In case cables are damaged, shut-off the combi and fuse switches and do 

not use the combi.

•  Electrical cables of combi and it’s accessories should only be replaced by 

the Authorized Service.

2.4. BOILER COMPONENTS

Figure 25 

Components of Combi 

1. Fan
2.  Hood Fume
3.  Burning Chamber
4.  Radiator (CH) Output Pipe
5.  Safety Thermostat
6.  Observation Glass
7. Boiler
8.  Heat Reflector
9.  Gas Inlet Pipe
10.  3 way motorized valve
11.  Low Water Pressure Switch
12.  Domestic Hot. Water Output Sensor
13.  Fan Flue Output End
14.  Expansion Tank valve
15.  Expansion Tank
16.  Radiator (CH) Return Pipe
17.  Lower Heat Reflector
18.  Expansion Tank Connection Pipe
19. Pump
20.  Exchanger with Plate
21.  3 Bars Safety Valve
22.  Gas Valve
23.  Deflector Plate
24.  Main Exchanger
25.  Burning Chamber Insulation
26.  Ignition and Ionization Electrode
27.  Diffuser Plate
28.  Automatic Air Relief Cock
29.  Control Panel
30.  Filling Tap

Summary of Contents for LAWA 18

Page 1: ...CONVENTIONAL COMBI BOILERS INSTALLATION USER MANUAL LAWA LAWA PLUS...

Page 2: ...Lawa LawaPlus Enerwa E24 EnerwaPLUSE24...

Page 3: ...2 2 16 Installation at Partially Protected Exteriors 12 2 2 17 Electrical Connections 12 2 2 18 Optional Controls Room Thermostat External Weather Temperature Sensor and Others 13 2 3 HYDRAULIC INSTA...

Page 4: ...under any circumstances during installation use or maintenance operations and device warranty shall also be void Only the authorized Warmhaus Service is authorized to make the electrical connection o...

Page 5: ...r matches Close valves of devices operating with natural gas and your gas meter Immediately evacuate the place with gas odour Natural Gas Emergency Line from your neighbour or another suitable place D...

Page 6: ...lace Wall installation for the combi boiler should be well secured The hanger plate given as standard with the combi should be installed according to the technique to a full or semi full brick wall ac...

Page 7: ...abnormal operations Various alloy layers may be formed during transit of LPG gas in tanks depending on mixture compositions That causes a change in heating power of mixture assigned to the device and...

Page 8: ...er and by using elbows as low as possible At least 1 bar pressurized grid input water should be supplied to ensure adequate domestic hot water Hydrophore should be used if required Figure 10 Flue peri...

Page 9: ...plications Each 45 elbow usage requires to decrease maximum 50 cm from horizontal vertical distance 60 100 Conventional 90 Elbow 153 11 660 600009 It can be used in horizontal and or vertical flue app...

Page 10: ...elbow contacting with the restrictive set Place the External Wall Plate into the flue terminal as seen in Figure 11 12 for grouping the flue output terminal After placing the flue output terminal thr...

Page 11: ...rd Flue Set Elbow 90 b Flue Extension Pipe c Additional 90 Elbow d Standard Flue Set Pipe Figure 16 II Two 90 elbow sample flue installations d a b c a b c d 4 m Figure 15 I Single 90 bended sample fl...

Page 12: ...Hermetic Flue Type fire resistant insulation material is placed between the wall and exhaust gas relief pipe Materials used for manufacturing the combi are resistant against glycol and propylene based...

Page 13: ...sockets and extension cables are not allowed to use 2 2 17 Optional Controls Room Thermostat External Weather Temperature Sensor and Others Room thermostat Outside Temperature Sensor etc control devi...

Page 14: ...of the radiator Combi safety valve relief should be connected to a discharge cone Otherwise safety valve shall be activated and manufacturer shall not be responsible due to water discharge around the...

Page 15: ...s valve radiator and tap water valves If you will shut off the combi for a short period perform below written operations Do not close combi electrical fuse gas valve radiator and tap water valves Leav...

Page 16: ...screens consist of navy blue colored backlight LCD screen 2 buttons Radiator 3 and Hot Tap Water 4 and 2 pcs RESET 2 and MODE 1 pushbuttons RESET It is used for re starting the combi and eliminating t...

Page 17: ...en light turns off At that position you can adjust the temperature between 35 80 C with the Radiator CH temperature adjustment button 3 Temperature value increases when button is rotated clockwise or...

Page 18: ...if the pressure is lower than this value 18 Failure indicator The temperature value displayed on the combi screen has a 3 C tolerance depending on environmental conditions not arising from the combi...

Page 19: ...installation Hold the MODE button for switching on the combi when letter is available on the screen A cycle starts on the screen Release the button when cycle is completed In some cases combi initiall...

Page 20: ...er is seen as the screen screen light turns off your combi is now at STANDBY position Figure 31 Thermostat position Figure 32 Outside weather temperature sensor Figure 33 Outside temperature sensor op...

Page 21: ...zed Service according to your request Air Discharge Function Activating the menu for LAWA PRIWA and ENERWA models Air discharge function can be activated by pressing the RESET button more than 5 secon...

Page 22: ...ermittent contacts or open contacts on harness carefully 3 Check Domestic heating water temperature sensor ressistance 4 Check cabeling and connectors between NTC and board 5 Reset Restart boiler E 13...

Page 23: ...vice at first E 42 Buttons anomaly Boiler does not work E42 error code flashing on the screen Wrong parameters settled on TsP menu 1 Call For service E 43 Opentherm communication error Boiler does not...

Page 24: ...st perform Au To calibration E 78 Max regulation current value reached Boiler does not work E78 error code flashing on the screen Gas inlet pressure Aging or rust on the electrode Recirculation on flu...

Page 25: ...Au To calibration E 88 Fault of electronic gas valve managing circuit Boiler does not work E88 error code flashing on the screen Cabeling disconnections Gas valve failiure 1 Call for authorised servi...

Page 26: ...ration Temporary wind precence 1 If there is strong wind ie wind storm wait until the wind storm stop then keep using the boiler as it is 36 or 48 hours boiler try to remove half power mode by it self...

Page 27: ...ailures occurring due to transportation unloading loading storing external physical Crushing scratches fractures and chemical factors following delivery of the product 6 Damages and failures arising f...

Page 28: ...10 7 28 10 32 5 12 8 Max Domestic Hot Water flow rate t 30 C min 10 5 10 9 10 7 10 9 13 9 13 3 13 9 14 2 Maximum Minimum water pressure bar 10 0 3 10 0 3 10 0 3 10 0 3 Temperature adjustment range oC...

Page 29: ...2ELL I 2H I3P NUMBER OF CHOOSED CONNECTING CONDITIONS Used gas G20 G20 G25 G25 G20 G25 G20 G31 Countries of destination AT BG CH CZ DK EE ES FI GB GR IE IT LT LV NO PT RO SE SI SK DE LU PL RO BE FR NL...

Page 30: ...30 warmhaus com...

Page 31: ...been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet All goods are sold subject...

Page 32: ...CONVENTIONAL COMBI BOILERS INSTALLATION USER MANUAL LAWA LAWA PLUS Instruction booklet code of Lawa LawaPlus 150 11 606 000004 Revision Date 09 2020...

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