5
Operating instructions ecoTEC plus 937
a
Caution!
The appliance may only be operated with its
casing properly and permanently closed.
Otherwise, in unfavourable conditions, material
damage or even injury or death can result.
Filling pressure of the heating system
Regularly check the filling pressure of the heating
system (see Section 4.2.2).
Leaks
If there is a leak in the water pipes between the
appliance and the taps, immediately turn off the cold
water shut-off valve and have your engineer repair the
leak.
Frost protection
Your boiler is fitted with a frost protection function:
If the temperature of the heating water falls below 5 °C
with the main switch in the on position, the boiler will
switch on and the heating circuit is heated up to approx.
30 °C.
h
Note!
It cannot be guaranteed that water is
circulating through the entire heating system.
If the boiler is not operated for several hours during
very cold weather there is a danger that the system will
freeze up.
Make sure that the central heating system remains
switched on during extended periods of frost and that
the temperature in all the rooms remains above
freezing.
It must, however, be pointed out that the boiler will be
switched off automatically by the built-in checking
devices if certain errors arise (e.g. interruption in the
power or gas supply and faults in the flue gas removal
system). In order to prevent the danger of freezing up
you can drain both the boiler and the heating system.
h
Note
The frost protection and monitoring devices are
only active if the main switch of the unit is in
position "I“ and the boiler is connected to the
power supply. Please observe the instructions
concerning frost protection in Section 4.9 in all
cases
3
Instructions on operation
3.1 Factory
guarantee
3.1.1
Two years guarantee for ecoTEC plus units
Vaillant is committed to rectify any manufacturing faults
which arise during the first 24 months after installation.
A prerequisite for the effectiveness of the guarantee in
the second year is that, one year after installation, an
annual inspection is carried out by a CORGI registered
maintenance engineer.
The costs for this annual service are not included in the
guarantee.
3.1.2 Registering
with
us
Registration is simple. Simply fill in the card for
guarantee registration and send it back to Vaillant within
30 days after installation. Your details will be
automatically entered into the Vaillant guarantee plan.
h
Note!
A receipt is not issued.
3.1.3 Immediate
help
If a fault arises on your Vaillant boiler please contact
your installer initially since the guarantee conditions
stipulate that his expertise must be made use of.
If you cannot contact your installer then contact Vaillant
Service Solutions on the phone number 0870 6060 777.
3.2 Intended
use
The Valliant ecoTEC plus 937 is a state-of-the-art
appliance which has been constructed in accordance
with recognised safety regulations. Nevertheless, there
is a risk of injury or death to the user or others and
damage to the appliance or other property in the event
of misuse or use for which the appliance is not intended.
The units are intended as heat generators for sealed
hot-water central heating installations and for central
hot water preparation. Any other use or extended use is
considered to be improper. The manufacturer or supplier
is not liable for any resulting damage. The user alone
bears the risk.
Intended use includes the observance of the operating
and installation manual and all other applicable
documents, as well as adherence to the maintenance
and inspection conditions.
a
Caution!
Any improper use is forbidden.
Safety 2
Instructions on operation 3
Summary of Contents for ecoTEC plus 937
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