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USER MANUAL Optima 10L COINTRA
Extradgasture 15mment
=Verifications previas
ylll laliln nn nnnn nn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn nnnn
| COB 14 | \( \frac{\text{ مصحيى }J5\:\text{ مصحيى }J6\:\text{ مصحيى }}{\text{ مصحيى }J7\:\text{ مصحيى }} \) | \( \frac{\text{ مصحيى }J5\:\text{ مصحيى }}{\text{ مصحيى }} \) | \( \frac{\text{ مصحيى }J6\:\text{ مصحيى }}{\text{ مصحيى }} \) | |||||
| \( COB10x \)\( COB10 \) | \( COB5 \)\( COB5 \) | |||||||
| \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( .\:\text{مصحيى }J5\:\text{مصحيى }J6\:\text{مصحيى }J7\:\text{مصحيى }J8\:\text{مصحيى }J9\:\text{مصحيى }J10\:\text{مصحيى }J12\:\text{مصحيى }J14\:\text{مصحيى }J16\:\text{مصحيى }J18\:\text{مصحيى }J20\:\text{مصحيى }J22\:\text{مصحيى }J24\:\text{مصحيى }J26\:\text{مصحيى }J28\:\text{مصحيى }J30\:\text{مصحيى }J32\:\text{مصحيى }J34\:\text{مصحيى }J36\:\text{مصحيى }J38\:\text{mصحيى }J40\:\text{mصحيى }J42\:\text{mصحيى }J44\:\text{mصحيى }J46\:\text{mصحيى }J48\:\text{mصحيى }J50\:\text{mصحيى }J52\:\text{mصحيى }J54\:\text{mصحيى }J56\:\text{mصحيى }J58\:\text{mصحيى }J60\:\text{mصحيى }J62\:\text{mصحيى }J64\:\text{mصحيى }J66\:\text{mصحيى }J68\:\text{mصحيى }J70\:\text{mصحيى }J72\:\text{mصحيى }J74\:\text{mصحيى }J76\:\text{mصحيى }J78\:\text{mصحيى }J80\:\text{mصحيى }J82\:\text{mصحيى }J84\:\text{mصحيى }J86\:\text{mصحيى }J88\:\text{mصحيى }J90\:\text{mصحيى }J92\:\text{mصحيى }J94\:\text{mصحيى }J96\:\text{mصحيى }J98\:\text{mصحيى }J100\:\text{mصحيى }J102\:\text{mصحيى }J104\:\text{mصحيى }J106\:\text{mصحيى }J108\:\text{mصحيى }J110\:\text{mصحيى }J112\:\text{mصحيى }J114\:\text{mصحيى }J116\:\text{mصحيى }J118\:\text{mصحيى }J120\:\text{mصحيى }J122\:\text{mصحيى }J124\:\text{mصحيى }J126\:\text{mصحيى }J128\:\text{mصحيى }J130\:\text{mصحيى }J132\:\text{mصحيى }J134\:\text{mصحيى }J136\:\text{mصحيى }J138\:\text{mصحيى }J140\:\text{mصحيى }J142\:\text{mصحيى }J144\:\text{mصحيى }J146\:\text{mصحيى }J148\:\text{mصحيى }J150\:\text{mصحيى }J152\:\text{mصحيى }J154\:\text{mصحيى }J156\:\text{mصحيى }J158\:\text{mصحيى }J160\:\text{mصحيى }J162\:\text{mصحيى }J164\:\text{mصحيى }J166\:\text{mصحيى }J168\:\text{mصحيى }J170\:\text{mصحيى }J172\:\text{mصحيى }J174\:\text{mصحيى }J176\:\text{mصحيى }J178\:\text{mصحيى }J180\:\text{mصحيى }J182\:\text{mصحيى }J184\:\text{mصحيى }J186\:\text{mصحيى }J188\:\text{mصحيى }J190\:\text{mصحيى }J192\:\text{mصحيى }J194\:\text{mصحيى }J200\:\text{mصحيى }J202\:\text{mصحيى }J204\:\text{mصحيى }J206\:\text{mصحيى }J208\:\text{mصحيى }J210\:\text{mصحيى }J212\:\text{mصحيى }J214\:\text{mصحيى }J216\:\text{mصحيى }J218\:\text{mصحيى }J220\:\text{mصحيى }J222\:\text{mصحيى }J224\:\text{mصحيى }J226\:\text{mصحيى }J228\:\text{mصحيى }J230\:\text{mصحيى }J232\:\text{mصحيى }J234\:\text{mصحيى }J236\:\text{mصحيى }J238\:\text{mصحيى }J240\:\text{mصحيى }J242\:\text{mصحيى }J244\:\text{mصحيى }J246\:\text{mصحيى }J248\:\text{mصحيى }J250\:\text{mصحيى }J252\:\text{mصحيى }J254\:\text{mصحيى }J256\:\text{mصحيى }J258\:\text{mصحيى }J260\:\text{mصحيى }J262\:\text{mصحيى }J264\:\text{mصحيى }J266\:\text{mصحيى }J268\:\text{mصحيى }J270\:\text{mصحيى }J272\:\text{mصحيى }J274\:\text{mصحيى }J276\:\text{mصحيى }J278\:\text{mصحيى }J280\:\text{mصحيى }J282\:\text{mصحيى }J284\:\text{mصحيى }J286\:\text{mصحيى }J288\:\text{mصحيى }J290\:\text{mصحيى }J292\:\text{mصحيى }J294\:\text{mصحيى }J300\:\text{mصحيى }J302\:\text{mصحيى }J304\:\text{mصحيى }J306\:\text{mصحيى }J308\:\text{mصحيى }J310\:\text{mصحيى }J312\:\text{mصحيى }J314\:\text{mصحيى }J316\:\text{mصحيى }J318\:\text{mصحيى }J320\:\text{mصحيى }J322\:\text{mصحيى }J324\:\text{mصحيى }J326\:\text{mصحيى }J328\:\text{mصحيى }J330\:\text{mصحيى }J332\:\text{mصحيى }J334\:\text{mصحيى }J336\:\text{mصحيى }J338\:\text{mصحيى }J340\:\text{mصحيى }J342\:\text{mصحيى }J344\:\text{mصحيى }J346\:\text{mصحيى }J348\:\text{mصحيى }J350\:\text{mصحيى }J352\:\text{mصحيى }J354\:\text{mصحيى }J356\:\text{mصحيى }J358\:\text{mصحيى }J360\:\text{mصحيى }J362\:\text{mصحيى }J364\:\text{mصحيى }J366\:\text{mصحيى }J368\:\text{mصحيى }J370\:\text{mصحيى }J372\:\text{mصحيى }J374\:\text{mصحيى }J376\:\text{mصحيى }J378\:\text{mصحيى }J380\:\text{mصحيى }J382\:\text{mصحيى }J384\:\text{mصحيى }J386\:\text{mصحيى }J388\:\text{mصحيى }J390\:\text{mصحيى }J392\:\text{mصحيى }J394\:\text{mصحيى }J396\:\text{mصحيى }J400\:\text{mصحيى }J402\:\text{mصحيى }J404\:\text{mصحيى }J406\:\text{mصحيى }J408\:\text{mصحيى }J410\:\text{mصحيى }J412\:\text{mصحيى }J414\:\text{mصحيى }J416\:\text{mصحيى }J418\:\text{mصحيى }J420\:\text{mصحيى }J422\:\text{mصحيى }J424\:\text{mصحيى }J426\:\text{mصحيى }J428\:\text{mصحيى }J430\:\text{mصحيى }J432\:\text{mصحيى }J434\:\text{mصحيى }J436\:\text{mصحيى }J438\:\text{mصحيى }J440\:\text{mصحيى }J442\:\text{mصحيى }J444\:\text{mصحيى }J446\:\text{mصحيى }J448\:\text{mصحيى }J450\:\text{mصحيى }J452\:\text{mصحيى }J454\:\text{mصحيى }J456\:\text{mصحيى }J458\:\text{mصحيى }J460\:\text{mصحيى }J462\:\text{mصحيى }J464\:\text{mصحيى }J466\:\text{mصحيى }J468\:\text{mصحيى }J470\:\text{mصحيى }J472\:\text{mصحيى }J474\:\text{mصحيى }J476\:\text{mصحيى }J478\:\text{mصحيى }J480\:\text{mصحيى }J482\:\text{mصحيى }J484\:\text{mصحيى }J486\:\text{mصحيى }J488\:\text{mصحيى }J490\:\text{mصحيى }J492\:\text{mصحيى }J494\:\text{mصحيى }J500\:\text{mصحيى }J502\:\text{mصحيى }J504\:\text{mصحيى }J506\:\text{mصحيى }J508\:\text{mصحيى }J510\:\text{mصحيى }J512\:\text{mصحيى }J514\:\text{mصحيى }J516\:\text{mصحيى }J518\:\text{mصحيى }J520\:\text{mصحيى }J522\:\text{mصحيى }J524\:\text{mصحيى }J526\:\text{mصحيى }J528\:\text{mصحيى }J530\:\text{mصحيى }J532\:\text{mصحيى }J534\:\text{mصحيى }J536\:\text{mصحيى }J538\:\text{mصحيى }J540\:\text{mصحيى }J542\:\text{mصحيى }J544\:\text{mصحيى }J546\:\text{mصحيى }J548\:\text{mصحيى }J550\:\text{mصحيى }J552\:\text{mصحيى }J554\:\text{mصحيى }J556\:\text{mصحيى }J558\:\text{mصحيى }J560\:\text{mصحيى }J562\:\text{mصحيى }J564\:\text{mصحيى }J566\:\text{mصحيى }J568\:\text{mصحيى }J570\:\text{mصحيى }J572\:\text{mصحيى }J574\:\text{mصحيى }J576\:\text{mصحيى }J578\:\text{mصحيى }J580\:\text{mصحيى }J582\:\text{mصحيى }J584\:\text{mصحيى }J586\:\text{mصحيى }J588\:\text{mصحيى }J590\:\text{mصحيى }J592\:\text{mصحيى }J594\:\text{mصحيى }J596\:\text{mصحيى }J600\:\text{mصحيى }J602\:\text{mصحيى }J604\:\text{mصحيى }J606\:\text{mصحيى }J608\:\text{mصحيى }J610\:\text{mصحيى }J612\:\text{mصحيى }J614\:\text{mصحيى }J616\:\text{mصحيى }J618\:\text{mصحيى }J620\:\text{mصحيى }J622\:\text{mصحيى }J624\:\text{mصحيى }J626\:\text{mصحيى }J628\:\text{mصحيى }J630\:\text{mصحيى }J632\:\text{mصحيى }J634\:\text{mصحيى }J636\:\text{mصحيى }J638\:\text{mصحيى }J640\:\text{mصحيى }J642\:\text{mصحيى }J644\:\text{mصحيى }J646\:\text{mصحيى }J648\:\text{mصحيى }J650\:\text{mصحيى }J652\:\text{mصحيى }J654\:\text{mصحيى }J656\:\text{mصحيى }J658\:\text{mصحيى }J660\:\text{mصحيى }J662\:\text{mصحيى }J664\:\text{mصحيى }J666\:\text{mصحيى }J668\:\text{mصحيى }J670\:\text{mصحيى }J672\:\text{mصحيى }J674\:\text{mصحيى }J676\:\text{mصحيى }J678\:\text{mصحيى }J680\:\text{mصحيى }J682\:\text{mصحيى }J684\:\text{mصحيى }J686\:\text{mصحيى }J688\:\text{mصحيى }J690\:\text{mصحيى }J692\:\text{mصحيى }J694\:\text{mصحيى }J700\:\text{mصحيى }J702\:\text{mصحيى }J704\:\text{mصحيى }J706\:\text{mصحيى }J708\:\text{mصحيى }J710\:\text{mصحيى }J712\:\text{mصحيى }J714\:\text{mصحيى }J716\:\text{mصحيى }J718\:\text{mصحيى }J720\:\text{mصحيى }J722\:\text{mصحيى }J724\:\text{mصحيى }J726\:\text{mصحيى }J728\:\text{mصحيى }J730\:\text{mصحيى }J732\:\text{mصحيى }J734\:\text{mصحيى }J736\:\text{mصحيى }J738\:\text{mصحيى }J740\:\text{mصحيى }J742\:\text{mصحيى }J744\:\text{mصحيى }J746\:\text{mصحيى }J748\:\text{mصحيى }J750\:\text{mصحيى }J752\:\text{mصحيى }J754\:\text{mصحيى }J756\:\text{mصحيى }J758\:\text{mصحيى }J759\:\text{mصحيى }J760\:\text{mصحيى }J762\:\text{mصحيى }J764\:\text{mصحيى }J766\:\text{mصحيى }J768\:\text{mصحيى }J770\:\text{mصحيى }J772\:\text{mصحيى }J774\:\text{mصحيى }J776\:\text{mصحيى }J778\:\text{mصحيى }J780\:\text{mصحيى }J782\:\text{mصحيى }J784\:\text{mصحيى }J786\:\text{mصحيى }J788\:\text{mصحيى }J790\:\text{mصحيى }J792\:\text{mصحيى }J794\:\text{mصحيى }J796\:\text{mصحيى }J800\:\text{mصحيى }J802\:\text{mصحيى }J804\:\text{mصحيى }J806\:\text{mصحيى }J808\:\text{mصحيى }J810\:\text{mصحيى }J812\:\text{mصحيى }J814\:\text{mصحيى }J816\:\text{mصحيى }J818\:\text{mصحيى }J820\:\text{mصحيى }J822\:\text{mصحيى }J824\:\text{mصحيى }J826\:\text{mصحيى }J828\:\text{mصحيى }J830\:\text{mصحيى }J832\:\text{mصحيى }J834\:\text{mصحيى }J836\:\text{mصحيى }J838\:\text{mencifer }\) | |||
| \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | |||
| \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | |||
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| \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) \( p_{i} \) | |||
| \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | p_i | \( p_{i} \) \( p_{i} \) | |||
| \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | \( p_{i} \) \( p_{i} \) | |||
| \( p_{i} \) | \( p_{i} \) | \( p_{i} \) | p_i | p_i | p_i | |||
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| \( p_{i} \) | \( p_i \) | \( p_i \) | \( p_i^{\prime} \) | \( p_i^{\prime} \) | ||||
| \( p_{i} \) | \( p_i \) | \( p_i \) | \( p_i^{\prime} \) | \( p_i^{\prime} \) | ||||
| \( p_{i} \) | \( p_i \) | \( p_i \) | \( p_i^{\prime} \) | \( p_i^{\prime} \) | ||||
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$$ 2 / 1 \cup : \cup \cup \cup \cup \cup \cup \cup = 3 $$
$$ j _ {2} = 1 2: j _ {1} \text {与} j _ {2} \text {与} j _ {3} \text {与} j _ {4} \text {与} j _ {5} = 2 $$
$$ j _ {1} \text {d e l t a} 1 5: j _ {\text {d e l t a}} j _ {\text {d e l t a}} $$

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$$ 1 2: \left{ \begin{array}{l} \text {i s} \ \text {j i s} \end{array} \right. $$
$$ \epsilon \mathrm {业} $$
$$ \text {p 1 5 :} \text {a l l j a l l j a l o} $$
$$ \epsilon \neq \alpha $$
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Installation, use and maintenance instructions
Congratulations on purchasing our product.
The COINTRA instant gas water heater that you have chosen has been carefully designed and manufactured by our specialists and thoroughly checked to meet all your requirements.
We recommend that you read these instructions carefully for you to get maximum hot water comfort with your new COINTRA instant gas water heater.
For installation, use and conservation of the gas water heater will be necessary to respect the warnings.
CONTENTS
PAGE
DESCRIPTION AND FEATURES BY MODELDESCRIPTION AND FEATURES BY MODEL
USERINSTRUCTIONS 5
ELECTRONIC WATER HEATERS (WITHOUT PILOT LIGHT) 5
- Prior checks 5
- Manual selection of burner power 5
- Temperature selection 5
Hot water selection 5
-Turning off the water heater 6
Control panel 6
-Overall dimensions. 7
INSTALLATION INSTRUCTIONS 8
MODEL PREMISES AND LOCATION 8
PIGES. 8
PLACEMENT 10
BURNT GAS EVACUATION 11
MOUNTING THE COVER 11
VERIFICATION AND DELIVERY 11
GAS EVACUATION CONTROL DEVICE (T.T.B) 12
SPECIFICATIONS 13
INJECTOR DIAMETER TABLES 14
WIRING OUTLINE OF WATER HEATHERS WITHOUT PILOT LIGHT 14
DESCRIPTION AND FEATURES BY MODEL
Your COINTRA water heater has been designed and manufactured so that, through correct usage, you can enjoy the convenience of hot water.
Depending on the model chosen, it consists of the following components (see table below):

DEPENDING ON THE MODEL CHOSEN, THE WATER HEATER WILL COMPRISE THE FOLLOWING COMPONENTS
| FUNCTIONAL ASSEMBLIES | 5 l/min models 8.9 kW/1275 Kcal/min | 10 l/min models 17.8kW/225 Kcal/min | 14 l/min model 23.8kW (34.1 kca/min) | ||
| COB 5 | COB 5 x | COB 10 | COB 10 x | COB 14 | |
| 1. Incorporated draught diverter Fuses proper combustion even when the draught changes in the burnt gas evaporation duct (fluid). With its new design, the heater covers its excess of grating. | Yes | Yes | Yes | Yes | Yes |
| 2. Heat exchanger Pure electroolytic copper with a caloric coating that ensures the highest possible heat transfer to water. | Yes | Yes | Yes | Yes | Yes |
| 3. Blumer Advanced technology that takes full advantage of the gas consumed | Yes | Yes | Yes | Yes | Yes |
| 5. Ignition safety valve. Electric system that only allows gas to escape the burners when the pilot light presence ensures its ignited | Yes | Yes | Yes | Yes | Yes |
| 6. Front gas control This can also be used to MANUALLY SELECT THE REQUIRED POWER | Yes | Yes | Yes | Yes | Yes |
| 7. Temperature selector Allows you to adjust and control water temperature | Yes | Yes | Yes | Yes | Yes |
| 9. Special hydraulic device • Automatically turns the water heating mechanism each time a hot water tee is turned on. This is a GUARANTEE at the same time as the gas passage is only open when water circulates through the exchanger. | Yes | Yes | Yes | Yes | Yes |
| 13. Hot water connection: Flexible | Yes | Yes | Yes | Yes | Yes |
| 14. Electronic ignition probe Used to ensure the burner's smooth operation through the ignition control. (see figure page 13) | Yes | Yes | Yes | Yes | Yes |
| 15. Electrode ignition Previous continuous sparks to ignite the burner. (See figure page 13) | Yes | Yes | Yes | Yes | Yes |
| 16. Temperature restriction thermostat | Yes | Yes | Yes | Yes | Yes |
| 17. Ignition micro. | Yes | Yes | Yes | Yes | Yes |
| 18. Control device for gas evacuation. (TBE) Disconnects the heater if the combustion gas outlet is obstructed. | Yes | no | Yes | no | Yes |
| 19. Battery box. | Yes | Yes | Yes | Yes | Yes |
| 20. Drainage valve | Yes | Yes | Yes | Yes | Yes |
| 21. Electronic control module. | Yes | Yes | Yes | Yes | Yes |
USERINSTRUCTIONSUSERINSTRUCTIONS
ELECTRONIC WATER HEATERS (WITHOUT PERMANENT PILOT LIGHT)NIC WATER HEATERS (WITHOUT PERMANENT
-
Prior checksPrior checks
-
Make sure hot water taps are turned off.
- Turn on the gas to water heater stopcock that is located where gas is supplied to the appliance.
- Check that the 1.5 V batteries are correctly installed according to polarity | +| and | -| and the safety seal has been removed.
-
Check that they are sufficiently charged for the water heater to function.
-
Manual selection of Burner Power
To ignite the appliance, turn the gas knob from the position maximum positions.

he of the 2 minimum or
The gas knob allows you to select the water heater power, minimum | | or maximum
and intermediate positions according to the hot water intensity required. Turn the gas knob to position (large flame), the unit heats the water at full power. If the temperature is too high, for example in summer or if a small volume of not very hot water is required, turn the knob to the position (small flame), reducing the power and gas consumption almost by half.
- Temperature selection
With the Temperature Selector you can easily gauge the water temperature by turning the selector to the right to achieve a higher temperature, or to the left to obtain less hot water. - Hot Water Service
- Once the previous settings have been selected, the water heater will start the process; turning on the hot water tap will automatically generate continuous sparks through its ignition electrode and directly light the burner.
- All the electronic models have an ionisation probe, which is immersed in the flame to control it.
If for any reason an issue has occurred in the gas circuit and the probe does not detect the flame's presence, the ignition electrode will automatically generate sparks for a few seconds to ignite the burner; in the event that the water heater does not turn on, it will be out of service. - You must remove the cause or element that prevents the gas from reaching the water heater, for example if the stopcock has been inadvertently turned off, worn out gas cylinder, etc.
The water heater block is deactivated by turning on and off the hot water tap.
- If the cause is removed and the hot water supply is not re-established after turning on the hot water, repeat the operation. Contact Technical Support if the anomaly persists.
- The flame's presence in the burner is seen through the window on the cover.
-Tuming off the water heater
To turn the water heater off, turn the gas knob again to the position

IMPORTANT NOTE
To protect the environment, deposit used batteries in containers intended for this purpose.
CONTROL PANEL OF CONTROL PANEL OF
5-AND 10ANRE WATER HEATERSLITRE WATER HEATERS

GASKNOB
TEMPERATURE SELECTOR
VERYIMPORTANT
It is recommended that the installation's stopcock is turned off when the unit is not being used frequently.
5-1/min MODELS
WATER HEATERS WITHOUT PILOT LIGHT


R minimum
only intaline eonotion dxt of 100 comnation proects.

= Hore water solute k / 2^n
3-Cowmwnr 1/2
2-Barejcxssnster 12 mment
Natural gas prices 15mMcf
10-1/min MODELS

I = Hot water outlet · I / T_d^2
3-Cos xerR 1/2
2-Butane/propane 15:12 mmpt Natural gas inject 15 mmpt
INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS
The water heater must be installed by a professional that holds an AUTHORISED CAS INSTALLER PERMIT. The smooth operation of your COINTRA water heater depends largely on i being installed CORRECTLY.
This task will be easier if you follow the guidelines below:
1. MODEL, PREMISES AND LOCATION. MODEL, PREMISES AND LOCATION.
1.1. Pay particular attention to ensure the chosen water heater is suitable.
To satisfactorily cover the facility's hot water needs
-For the intended gas see water heater data plate.
in relation to the water pressure in the network necessary for it to work (see specification table on page 121).
1.2. Ensure that the facility's premises meets all the conditions required by the Regulations.
1.3. Position the water heater as near to the hot water tap as possible, near the sink but NEVER above the cooker. It should also be placed as near as possible to the flue or the point where the pipe that disposoes of burnt gases comes out
2. PIPES.2. PIPES.
2.1. Make the hot water pipes as short as possible. Isolate long sections to avoid heat loss.
2.2. Leave the ends of the cold water [F] and hot water [Cl] pipes as shown in the diagram. Avoid unnecessary bends and bottlenecks. We recommend using a minimum diameter of piping of 12 and 34 in the case of low water pressure. Make sure air pockets are unable to form in the hot water conduit. Flush water pipes.
2.3. Connect the stopcock, which was supplied with the water heater in the accessories bag, to the hot water pipe
2.4. Insert a suitable gas stop cock in the gas supply to the water heater.
2.4.1. The joining between this stopcock and the gas entry tube to the water heater included in the accessories bag must be carried out by brazing.
2.4.2. The gas connection pipes must have the following diameters:
- External 12 mm pipe for models COB 5 and COB 5 x.
- External 15 mm pipe, for models COB 10, COB 10 x and COB 14
2.5. Water heater water connections.
2.5.1. To make installation easier or replace previous models, the water heaters have been equipped with flexible hoses.
2.5.2. Connect the flexible hoses according to the following directions:
- Female-Female flexible hose is used to connect the cold water inlet with the water heater inlet.
- Male-Female flexible hose is used to connect the hot water inlet with the water mains.
2.5.3. All connections shown are carried out with R 1/2" screw.
2.5.4. Make sure the joints are tightened properly.

C
Cold
H
Hot
G
Gas
3. POSITIONING. POSITIONING.
- For correct operation of the heater, install it in a vertical position.
- Use the mounting template included in the package. As an example, see template model 1/1/ min

The fastening elements are in the inlet
plugs for fixing upper and lower fixing screws
Heng the water heater of hooks and tighten the screws to attach it to the wall.
- Connect the flexible hot and cold water hoses without forgetting to check for leaks. Do not
remove the filter at the cold water inlet in order to avoid circulation problems.
4.1.Evacuation of burnt gas pipe
The burn gas evacuation pipe must have the following diameters, depending on model.
- Models COB 5 and COB 5 x can only be attached to one of the two following types of combustion product: evacuation pipes.
If you choose an 0.80mm pipe for the evacuation, the pipe joining the cutter will be adjusted to the bottom in the inside of the water heater's casing. - If the 100 pipe is chosen to evacuate the combustion products, the coupler must be installed. 80 to 100 supplied with the water heater. The 80 area will be fitted "to the bottom in the inside of the casing of the water heater's draught diverter," the 100 pipe of the duct will be adjusted from the inside and to the bottom of the Coupler".
Models COB 10 and COB 10x
Rice for fitting the draft diverter on the inside, 0~110~mm
Roe for fitting on the outside 120mm
Couplings for draft diverters are found at specialist trade stores.
Model COB 14
Rice for fitting the draft diverter 130mm
4.2. The mass flow rates for calculating flues are found in the table on page 11
4.3. Ensuring the correct evacuation of combustion gases
To ensure the system is functioning with the water heater's nominal power, check the lightness of the whole combustion gas evacuation system through a spray plate, cooled mirror or any other approved apparatus.
4.4. Maintenance
Recommended on an annual basis. This must be carried out by an Official Technical Service.
- MOUNTING THE COVER. 5. MOUNTING THE COVER
If for any reason you need to remove the cover for installation
5.1. Remove the gas knob and temperature selector by pulling them out.
5.2. Loosen the screws connecting the cover.
5.3. Assemble the controls by pressing them inwards.
CHECK AND COMMISSIONING CHECK AND COMMISSIONING
-Ensure that the installation meets on ALL REQUIREMENTS OF THE REGULATIONS IN FORCE IN THE COUNTRY IN WHICH THIS INSTALLED.
Check the complete scaling of the gas and water circuits.
- Turn on the heater and check its operation for 15 min, teach the user the proper handling and use of heater and give this instruction manual
- CONTROL DEVICE FOR THE EVACUATION OF GASES [T.T.B].6. CONTROL DEVICE FOR THE EVACUATION OF GASES [T.T.B.]
6.1. The T.T.B. safety element that is fitted to the water heaters ensures that combustion products are evacuated properly and should, therefore, not be deactivated and uncontrolled interventions should not be performed on it. In case of disturbances in the evacuation of combustion products the device interrupts the gas supply to the burner.
6.2. If the T.I.B. device is activated once the water heater is turned on, revise the burnt gas outlet by checking the evacuation with a cooled mirror with running water, or any other measuring device approved for this purpose.
6.3. In case of damage, use only original spare parts as the T.T.B device may not work properly otherwise.
6.4. The T.T.B device should be replaced by experts as follows.
- Remove the defective T.T.B. device by loosening the two screws holding it together.
- Remove line thermocouple.
- Insert a new original thermocouple
- Attach the TTB device to the smoke box without forcing the screws.
- Check it is working properly.
6.5. Model's for "Exclusive outside installation" do not need this device.
VERY IMPORTANT/VERY IMPORTANT
In the premises where the water heater is located, do not forget to open the air inlet and, where appropriate, the air outlet as per the requirements of the GAS Installations Regulations. To maintain a clean environment, remember to dispose of used batteries in containers prepared for collecting these products.
| MASS FLOW RATES OF PDC (JUNE-EN 26.5.2.1.4.5) | ||||||
| GAS | 5-litre Models | 10-litre Models | 14-litre Models | |||
| On Qm | On On Qm On Qm | |||||
| g/s g/s | g/s g/s g/s g/s | |||||
| G20 | 7,5 6,3 | 6,1 12,5 21,5 | 16,3 | |||
| G30 | 7,1 5,9 | 5,1 11,7 20,2 | 15,3 | |||
TECHNICAL SPECIFICATIONS
| TECHICAL SPECIFICATIONS | SUTIES | ISOLINES | TOLERANCES | |||
| COB 5 | COB 5x | COB 10 | COB 10 x | COB 14 | ||
| CATEGORY | In+3 | In+3 | In+3 | In+3 | In+3 | |
| APPLIANCE TYPE | B-12 | B+1 | B+5 | B+1 | B+15 | |
| TYPE OF INSTALLATION | Inside | Outside | Inside | Outside | Inside | |
| NOMINAL CONSUMPTION - KW/minMax | 4.10101 | 4.10101 | 8.1020.2 | 8.1020.2 | 10.7026.8 | |
| USEFUL POWER - KW*1maximum | 3.68.9 | 3.68.9 | 7.1017.8 | 7.1017.8 | 9.923.8 | |
| WATTR (J/min) ANDTEMPERATURE RATE (a)40°C (Δ-25°C) | -5.1 | -5.1 | -10.1 | -10.1 | -13.7 | |
| δSPC (Δ-50°C) | 2.6 | 2.6 | 5.1 | 5.1 | 6.8 | |
| MINIMUM WATER PRESSURE (per fcc)TEMPERATURE (b)40°C (Δ-25°C) | -0.5 | -0.5 | -0.5 | -0.5 | 0.4 | |
| δSPC (Δ-50°C) | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| MAXIMUM WATER PRESSURE (per fcc) | 10 | 10 | 10 | 10 | 10 | |
| GAS CONSUMPTION [013 m3/day/28° B/c] | 0.37 | 0.37 | 0.63 | 0.63 | 0.94 | |
| Propane G-1kg/h | 0.79 | 0.79 | 1.58 | 1.58 | 2.09 | |
| Butane G-30m3/h | 0.431.07 | 0.431.07 | 0.862.14 | 0.862.14 | 1.132.83 | |
| GAS PRESSURE [mmHg] | ||||||
| Actual gas pressure (mmHg) | 28-30 | 28-30 | 28-30 | 28-30 | 28-30 | |
| Propane G-31 | 37 | 37 | 37 | 37 | 37 | |
| Natural G-20 | 20 | 20 | 20 | 20 | ||
| In the corner-Maximum Power (1 MPa) | ||||||
| durban G-30 | 27.3 | 27.3 | 27.57 | 27.57 | 27.57 | |
| Propane G-31 | 35.3 | 35.3 | 35.84 | 35.84 | 35.84 | |
| Natural G-20 | 14.7 | 14.7 | 13.33 | 13.33 | 13.33 | |
| In the corner-Minimum power (1 MPa) | ||||||
| durban G-30 | - | - | - | - | - | |
| Propane G-31 | - | - | - | - | ||
| Natural G-20 | - | - | - | - | ||
| EETICAL CURRENT (22V-50Hz) | no | no | no | no | no | |
| EC*MARK | 016ICN0998 | 016IETO927 | ||||
PREVENPHONNSNONS
AGAINST LINE
In specific areas with hard water, in order to prevent the deposition of lime that can affect to the heat transmission, it is recommended to limit the outot temperature adjusting it by means of the temperature selector.
AGAINSTICE
In specific cold areas, to prevent the water heater from being damaged as a result of an imminent freeze.
- Close the water inlet valve to the heater
- Open the lowest hot water tap [e.g. the bidet]
- Open the drain valve in the lower part of the heater, so that water can come out and the air can enter.
Use a cloth with soapy water to clean the front cover, avoid abArsive detergents and solvents. To increase the life of your water heater, it should be maintained and cleaned once a year, please call our Technical Service.
ADAPTING TO DIFFERENT GASESADAPTING TO DIFFERENT GASES
The gas water heater is equipped for a specific gas. Adaptation of COINTRA gas water heaters to a different gas of the gas prepared from factory, must be performed by competent authorized using COINTRA original parts and in accordance with the regulations in force in the country in which the appliance is installed. This adaptation should be as follows:
- Turn off the water and gas supply, remove the knobs and put off the front cover.
- Replace the injector nozzles (see figure A) in the burner by those specific for the corresponding gas.
- Replace the gas front valve mechanism (figure B), paying attention to mount it correctly.
- Place the new technical data sticker on the previous one, to show the right gas adaption.


VERY IMPORTANT: The adjusting screw of minimum flow, situated in the body of water, which is sealed will not be manipulated in any way.
INJECTOR DIAMETER TABLESINJECTOR DIAMETER TABLES
5 /min MODELS.1/min MODELS.
| MODELS | COB 5 and COB 5x | ||
| G.P.L. | G.N. | ||
| INJECTORS | DIAMETER | 0.66 | 1.0 |
| CODE | |||
10 /min MODELS./min MODELS.
| MODELS | COB 10 and COB10 x | ||
| G.P.L. | G.N. | ||
| INJECTORS | DIAMETER | 0.72 | 1.15 |
| CODE | |||
14 Vmin MODELSJ/min MODELS.
| MODELS | COB 14 | ||
| G.P.L. | G.N. | ||
| INJECTORS | DIAMETER | 0.66 | 1.02 |
| CODE | |||
WIRING OUTLINE OF WATER HEATERS WITHOUT PILOT LIGHTRING OUTLINE OF WATER HEATERS WITHOUT PII

14
CERTIFICATE OF GUARANTEE CERTINTRATGODESLAWARENTRA GODESA
CONTRA guarantees the appliances that it supplies in accordance with Act 23/2003 relating to guarantees when selling consumer goods for a period of two years may vary non-compliance that becomes apparent after product delivery.
Unless proved otherwise, it is presumed that non-conformities that become apparent six months siter delivery did not exist when the goods were delivered
Spare parts will be guaranteed for a period of two years from date the appliance is delivered. With the exception of the heat exchanger (radiator), which is guaranteed for three years, three years. This guarantee is only valid for appliances sold and installed in Spanish territory.
SCOPE OF GUARANTEESCOPE OF GUARANTEE
Unless proved otherwise, it is understood that the goods are compliant and suitable for the purpose for which they are purchased provided the below conditions are met:
The guaranteed appliance must correspond to one which the manufacturer specifically intends for Spain and must be installed in Spain.
Any parts that must be replaced will be determined by our OFFICIAL Technical Support team, and will always be Cointra original parts
The guarantee is valid provided that normal maintenance operations are carried out as described in the technical instructions supplied with the equipment.
The consumer must inform Cointra that the goods are non compliant within two months before becoming aware of this.
The guarantee does not cover incidents produced by guarantee does not cover incidents produced by
The electrical supply of the equipment through power generators or any other system that is not a stable power grid with sufficient capacity.
- Products that have been repaired by any party other than Cointra's OFFICIAL Technical Support team and/or Cointra Godesia authorised staff.
Corrosion, distortion, etc. caused by improper storage.
- Handling of the product by any party other than Cointra during the guarantee period.
Assembly that is not in accordance with the instructions provided with the equipment.
Equipment installation that does not respect prevailing Laws and Regulations (electricity, water, etc.).
Defects in the electrical or water facilities, or insufficient flow, etc.
Anomalies caused by improper treatment of water supplied to the equipment, corrosion caused by its aggressiveness, badly carried out anti-scaling treatments, etc.
Anomalies caused by the weather (ice, lightening, floods, etc.) as well as by erratic currents.
Due to improper maintenance, neglect or misuse.
The material replaced under the guarantee will be the property of COINTRA GODESIA
NOTE: You must complete all the information outlined in the Guarantee Certificate. The guarantee must be validated immediately by indicating the date and sending it to COINTRA GODESIA
Each member of our OFFICIAL Technical Support team has the corresponding accreditation from Cointra. Demand this accreditation in any dealings.
Any claims must be made to the competent authority in this matter.
Cointra Godesia, s.a.
Ayda. Italia, 2 Edificio Ferro1 28820 Costada | Macnd | ESPANA Tel: 134 916 707 459 Fax: 134 916 708 683
SAT Tel: 902407 010
E-mail:info@comrca.cs
Compo Sodia, SA uses the right to modify, study, and without or with no cause, the data and characteristics of the device. In the document: Memnir of AINH (Nihlndical Association) for the
