84
16.1 - Check water
pressure
If the pressure inside the water circuit
falls below the minimum pressure for
the system, the appliance switches
off and the display “N” as per Figure
16-1, shows Err 59 to indicate that
it is necessary to restore the correct
pressure. Because water heater is
installed in an open loop system,
you have to check for the net water
pressure or for any pressure reducer
upstream of the water supply circuit.
When the pressure is restored the Err
59 will disappear.
16.2 - Overview
The heater is pre-set with standard
parameters. However, it is possible
to make a number of changes or
consult the parameters by means of
using the “Users’ Menu” (see Section
16.10) and the “Installers’ Menu” (see
Section 16.11).
During functioning display “N” of
Figure 16-1, displays the supply
temperature, and display “M” (see
Figure 16-1) shows the pressure
of the water. The various operating
statuses are shown with other icons
as per Figure 16-1.
16.3 - Displays
During normal operations, the display
will remain permanently off, except
when the appliance goes into Lockout,
or in Blocking error.
In any case, pressing any key, display
will light on and will stay light on for 5
minutes from the last pressing key.
16.4 - Start-up
procedure
1. Open the manual gas shutoff valve;
2. switch on electric power to the
heater;
3. If the display shows code Err 65,
it means that the polarity has
not been observed (Call service
department to restore the situation,
do not attempt to repair it);
4. press key
or
to setup the
supply temperature desired, then
press RESET key to save the
change.
5. press key
q
and
p
to setup
the indirect water heater desired
temperature, then press RESET
key to save the change.
The flame control appliance will start-
up the burner.
If the burner fails to ignite within 60
seconds, the heater will automatically
attempt ignition another four times,
after which if it fails to start-up, it will
shut down and the display will show
Loc 1 together icon
.
When multi-burner unit models 399 or
500 go into any Lockout or Blocking
error the display will show the icon
and the corresponding burner icon in
fail (
or
) that blink.
Press the RESET key in order to re-
set normal operating conditions.
On units model 399 or 500, to restore
the normal operating condition, press
RESET key one time, diplay will show
the type of lockout, than press RESET
key again (to back in normal display
mode, press and hold for at least 5
seconds RESET key).
The heater will automatically attempt
another start-up.
CAUTION!!!
If the appliance
frequently shuts down, contact
a qualified technician to restore
normal running conditions. Do
not attempt to repair it.
16.5 - Supply
water temperature
adjustment
The water heater provides hot water at
the temperature set by adjusting keys
or
as shown in Figure 16-1.
When the keys are pressed, the display,
item “N” in Figure 16-1, shows the
supply water setpoint being selected.
The range within which the water can
be set is 68°F (20°C) to 176°F (80°C).
WARNING!!!
Water
temperature over 125°F can
cause severe burns instantly
or death from scalds. Children,
disabled and elderly are at
highest risk of being scalded.
Feel water before bathing or
showering.
16 - USE
Summary of Contents for Esteem 399
Page 3: ...3 SAFETY INSTRUCTIONS ...
Page 5: ...5 SAFETY INSTRUCTIONS ...
Page 112: ...112 17 MAINTENANCE ...
Page 116: ...116 19 SPARE PARTS Spare parts ...
Page 135: ......
