Publicidad
Idiomas disponibles
Idiomas disponibles
• 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.
• The heater lock can also be produced by a disturbance in the exhausting of the flue gases. As in the case of "hot water servi-
ce" if, after removing the cause of the obstruction, the problem persists, contact the Technical Assistance Service.
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.
3.3 PREvENTIONS
AGAINST LIME
In specific areas with hard water, in order to prevent the deposition of lime that can affect to the heat trasnmission, it is recommen-
ded to limit the output temperature adjusting it by means of the temperature selector.
AGAINST ICE
In specific cold areas, to prevent the water haeter from being damaged as result of an inminent freeze:
1.
Close the water inlet valve to the heater
2.
Open the lowest hot water tap (e.g. the bidet)
3.
Open the drain valve in the lower part of the heater, so that water can come out and the air can enter.
4. INSTALLATION INSTRUCTIONS
The water heater must be installed by a professional that holds an AUTHORISED GAS INSTALLER PERMIT. The smooth opera-
tion of your COINTRA water heater depends largely on it being installed CORRECTLY.
This task will be easier if you follow the guidelines below:.
4.1 MODEL, PREMISES AND LOCATION
• 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 12).
• Ensure that the facility's premises meets all the conditions required by the Regulations.
• 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.
4.2 PIPES.
• Make the hot water pipes as short as possible. Isolate long sections to avoid heat loss.
• Leave the ends of the cold water (F) and hot water (C) pipes as shown in the diagram. Avoid unnecessary bends and bottle-
necks. We recommend using a minimum diameter of piping of ½" and ¾" in the case of low water pressure. Make sure air
pockets are unable to form in the hot water conduit. Flush water pipes.
• Connect the stopcock, which was supplied with the water heater in the accessories bag, to the hot water pipe.
• Insert a suitable gas stop cock in the gas supply to the water heater.
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.
The gas connection pipes must have the following diameters:
- External ø 15 mm pipe, for models COB 11 D.
• Water heater water connections.
To make installation easier or replace previous models, the water heaters have been equipped with flexible hoses.
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.
All connections shown are carried out with R 1/2" screw.
Make sure the joints are tightened properly.
EN
32
cod. 30902370 - Rev. 01 - 11/2017
OPTIMA
Publicidad
