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USER INSTRUCTIONS

 

ELECTRONIC WATER HEATERS (WITHOUT PERMANENT PILOT LIGHT) 

 

- Prior checks 

 

1. Make sure hot water taps are turned off. 
2. Turn on the gas to water heater stopcock that is located where gas is supplied to the appliance. 

 

3. Check that the 1.5 V batteries are correctly installed according to polarity (+ and -) and the safety seal has been 
removed. 
4. 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         to one of the 2 minimum or 
maximum positions. 
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 
the     

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. 

Summary of Contents for OPTIMA COB 10

Page 1: ...1 INSTANTANEOUS GAS WATER HEATER Installation use and maintenance instructions OPTIMA ...

Page 2: ...r will be necessary to respect the warnings CONTENTS PAGE DESCRIPTION AND FEATURES BY MODEL 3 USER INSTRUCTIONS 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 PIPES 8 PLACEMENT...

Page 3: ...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 ...

Page 4: ...ol This can also be used to MANUALLY SELECT THE REQUIRED POWER Yes Yes Yes Yes Yes 7 Temperature selector Allows you to adjust the hot water temperature Yes Yes Yes Yes Yes 9 Special hydraulic device Automatically starts the water heating mechanisms each time a hot water tap is turned on This is a GUARANTEE at the same time as the gas passage is only open when water circulates through the exchange...

Page 5: ...red 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 ...

Page 6: ... s presence in the burner is seen through the window on the cover Turning 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 CONTROLPANELOF 5 AND 10 LITRE WATER HEATERS GAS KNOB TEMPERATURE SELECTOR VERYIMPORTANT It is recommended that the installation s s...

Page 7: ...uation ducts of Ø 100 combustion products 1 Hot water outlet R 1 2 3 Cold water inlet R 1 2 2 Butane propane inlet Ø 12 mm ext Natural gas inlet Ø 15 mm ext 10 l min MODELS 1 Hot water outlet R 1 2 3 Cold waterinlet R 1 2 2 Butane propaneinlet Ø 12 mm ext Natural gas inlet Ø 15 mm ext 400 14 L 328 10 L 660 14 L 560 10 L 650 14 L 550 10 L 220 14 L 168 10 L 220 14 L 170 10 L Ø130 mm ...

Page 8: ...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 disposes of burnt gases comes out 2 PIPES 2 1 Make the hot water pipes as short as possible Isolate long sections to avoi...

Page 9: ...s 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 ho...

Page 10: ...bag of accessories included in the water heater packaging wall plugs for fixing upper and lower fixing screws Hang 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 OPTIMA 14 Clod water inlet Hot water ou...

Page 11: ...und at specialist trade stores Model COB 14 Pipe for fitting the draft diverter Ø130 mm 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 tightness of the whole combustion gas evacuation system through a spray plate cooled mirror ...

Page 12: ...rly 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 the thermocouple Insert a new original thermocouple Attach the T T B device to the smoke box without forcing the screws Check it is working properly 6 5 Models for Exclusive outside installation do not need this device VERY IMPORTANT I...

Page 13: ... Butane G 30 0 32 0 79 0 32 0 79 0 63 1 58 0 63 1 58 0 84 2 09 Natural gas G 20 m3 h 0 43 1 07 0 43 1 07 0 86 2 14 0 86 2 14 1 13 2 83 GAS PRESSURE mbar At the heater inlet mbar Butane G 30 Propane G 31 Natural G 20 In the burner Maximum Power mbar Butane G 30 Propane G 31 Natural G 20 In theburner Minimum power mbar Butane G 30 Propane G 31 Natural G 20 28 30 37 20 27 3 35 3 14 7 28 30 37 20 27 3...

Page 14: ...cleaned once a year please call our Technical Service ADAPTING TO DIFFERENT GASES The gas water heater is equiped 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 oiriginal parts and in accordance with the regulations in force in the country in which the appliance is installed This...

Page 15: ...OB 5 x G P L G N INJECTORS DIAMETER 0 66 1 0 CODE 10 l min MODELS MODELS COB 10 and COB10 x G P L G N INJECTORS DIAMETER 0 72 1 15 CODE 14 l min MODELS MODELS COB 14 G P L G N INJECTORS DIAMETER 0 66 1 02 CODE WIRING OUTLINE OF WÁTER HEATERS WITHOUT PILOT LIGHT ...

Page 16: ...re non compliant within two months of becoming aware of this The 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 Corrosio...

Page 17: ... Fax 34 916 708 683 S A T Tel 902 402 010 E mail info cointra es Cointra Godesia S A reserves the right to modify at any time and without prior notice the data and characteristics of the devices in this document Member of Anfel National Association of electrodomestic manufacturers ...

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