Mounting The Cover - Cointra OPTIMA COB 5 Instrucciones De Instalación, Uso Y Conservación

4. EVACUATION OF BURNT GAS
4.1. Evacuation of burnt gas pipe.
The burnt 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:
1º. If you choose an Ø 80 mm pipe for the evacuation, the pipe joining the cutter will be adjusted "to the bottom" in
the inside of the water heater's casing.
2º. If the Ø 100 pipe is chosen to evacuate the combustion products, the coupler must be installed. Ø 80 to Ø 100
supplied with the water heater. The Ø 80 area will be fitted "to the bottom in the inside of the casing of the water
heater's draught diverter; the Ø 100 pipe of the duct will be adjusted from the inside and to the bottom of the
Coupler".
• Models COB 10 and COB 10 x.
Pipe for fitting the draft diverter on the inside. Ø 110 mm.
Pipe for fitting on the outside. Ø 120 mm.
Couplings for draft diverters are found 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 or any other approved apparatus,
4.4. Maintenance.
Recommended on an annual basis. This must be carried out by an Official Technical Service.

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
- Ensure that the installation meets on ALL REQUIREMENTS OF THE REGULATIONS IN FORCE IN THE COUNTRY IN
WHICH THIS INSTALLED.
- Check the complete sealing 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
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