EN
53
cod. 3541S870 - Rev. 03 - 07/2020
JEREZ ECO
1 USER'S MANUAL
1.1 Introduction
The new
JEREZ ECO
is a high-performance, low-emis-
sion heater for domestic hot water production, powered
by
natural gas
or
LPG
and equipped with a compact,
WATER-COOLED
, battery-powered burner with electro-
nic ignition, designed for indoor installation.
1.2 Control panel
fig. 1 -
Control panel
1
DHW temperature indica-
tion at the outlet from the
boiler
2
Battery charge indication.
Fixed symbol: Very low
battery; change as soon as
possible. When flashing,
the battery is dead and
must be replaced.
3
Burner power adjustment
4
Temperature adjustment
5
Burner on indication
1.3 Turning the heater on and off
When the unit is working, the
temperature near the peephole
may be high. Avoid contact as
there may be risk of burns.
Preliminary checks and operations
1
Make sure the hot water taps are closed.
2
Open the gas supply cock to the heater, located at the
gas connection to the unit.
3
Check that the 1.5 V batteries are properly installed
with the correct polarity (+/-). To replace the batteries,
see (3.4 Replacing the batteries).
4
Also verify that the batteries are sufficiently charged
for heater operation.
1.3.1 Turning the unit on
Turn the knob to the required water heating level.
The unit will begin operating every time hot water is
drawn.
fig. 2 -
Turning the unit on
1.3.2 Turning the unit off
The burner goes off automatically when hot water is no
longer demanded.
To use the unit again, no action is required.
To completely shut off the unit, place the knob in the ()
position.
fig. 3 -
Turning the unit off
If the water heater will not be used for an extended pe-
riod of time, close the gas cock supplying the unit.
If the unit will be inactive for an
extended period of time during
the winter, all water should be
removed to avoid ice damage.
1.4 Settings
1.4.1 Setting the burner power manually
Use the knob (3 fig. 1) to select the heater power. You
may choose between the minimum, maximum, and in-
termediate positions, depending on the required heating
power.
If the knob is turned counterclockwise, the unit will ope-
rate at maximum power. If the temperature is too high,
for example in the summer, or if you need a reduced
flow of not very hot water, turn the knob clockwise. This
reduces the power, and therefore the gas consumption.
In the
●
position, the unit is turned off.
