S
BOILER AUTOMATIC MODE (BLOWER AND STOKER)
4
Use
MANUAL MODE OF THE STOKER AND BLOWER
to fire up the boiler (page 3). When coal in the retort has been
ignited switch to automatic mode by pressing [EXIT]
,
then pressing [MODE], and then within five seconds
[]START
. The
controller starts automatic FIRE UP of the boiler - the blower works at its maximal speed setting, while the stoker regularly
feeds new portions of coal. FIRE UP mode will start only if the temperature at the boiler sensor is lower than the extinguish
temperature setting (parameter A3)
.
Over the first 6 hours after the FIRE UP precedure has been started the controller does
not take into account the minimal temperature at the return to the boiler
(parameter E3)
.
When the boiler temperature exceeds current extinguish temperature setting (parameter A3), the controller enters
HEATING mode.
If the parameter A
8
is set to YES (default
: NO
), as the temperature of the boiler approaches the temperature set by the user
(parameter A1) displayed on the MAIN SCREEN, the amount of coal and air is automatically reduced. When the
temperature selected by the user is achieved, the controller enters into STANDBY mode. In this mode the stoker and blower
switch on at regular intervals to prevent furnace from extinguishing.
The controller enters HEATING mode again when the temperature drops by the hysteresis value (parameter A2) below
boiler temperature.
During heating up of the D.H.W. tank automatic reduction of boiler power is not performed.
In HEATING mode, when boiler temperature drops below the current extinguish temperature setting (parameter A3), the
controller enters EXTINGUISH mode - the blower and stoker are switched off.
EXTINGUISH will not start unless FIRE UP has been completed (parameter A4 - default setting:
6
hour
s
).
If during FIRE UP boiler temperature does not exceed EXTINGUISH temperature, once FIRE UP time has passed, the
controller enters into NOT FIRED UP mode.
In all modes of the controller pumps are run depending on selected settings.
OPERATION WITH THE WIRELESS REMOTE CONTROL ROOM PANEL
Operation of the JOKER DS2P
M
-RC controller with the wireless room control panel is described on pages 12 and 13.
SUMMER MODE (parameter
K
1
in
)
When SUMMER mode is selected,
a
utomatic reduction of boiler power is not performed. The boiler heats up only the
D.H.W. tank. SUMMER mode is indicated on the MAIN SCREEN by the
and
icon
s
.
Over the first 6 hours from switching from the SUMMER mode to the WINTER mode the controller does not take into
account the minimal temperature at the return to the boiler
(parameter E3)
.
ALERTS
The controller features several boiler alerts: regulated alerts for low or high boiler temperature (parameters A5 and A6) and
permanent (not regulated) alerts: low temperature at 8°C and high temperature at 92°C. The 92°C alert stops the blower
and the stoker and fully opens the mixing valve. Even when boiler temperature drops, the "92°C alert" remains active until
[START] button is pressed.
Once the temperature exceeds the alert threshold set by the user, both an audible and visual
(red diode) alerts are triggered. When boiler reaches the permanent alert temperature only a visual alert is activated.
When temperature of the stoker exceeds the alert temperature setting (parameter C6), the stoker is activated in order to
shove burning coal from the stoker into the boiler (preventing fire from moving into the coal container). A special screen
appears to display temperature and duration of coal shoving (parameter C7). Audible and visual (red diode) alerts are
activated and the mixing valve is fully opened.
Pressing [STOP] on the screen "Shoving fire from the stoker into the boiler' stops the shoving off procedure regardless of
the temperature of the stoker. When shoving off is discontinued, "STOKER FIRE" symbol appears on the main screen.
CAUTION: Shoving off of coal from the stoker into the boiler is activated only once in a given working cycle of the controller.
In order to activate the stoker alert again press [START] - then the "STOKER FIRE" message will disappear from the
screen.
The 92°C alert has a priority over stoker alert.
The emergency cooling of the boiler in the SUMMER mode (parameter A7) will activate the CH pump and the
, i
.
CAUTION: During the
there is a risk of increased domestic hot water temperature
above user settings. The careful use of hot water is recommended.
CAUTION:
CAUTION:
DHW tank
feeding pump
An audible alert and a visual alert (red diode) are activated.
emergency cooling of the boiler
If the temperature at the return to the boiler falls below the setting of the parameter E3, the controller
will increase boiler temperature to 65°C.
While the D.H.W. tank is heated up, the controller raises the boiler temperature by 5°C above the current
temperature setting for the D.H.W. tank (
F
1).
When the blower
and stoker
need to be stopped press [MODE], and then within five seconds press [STOP]. Pressing
[START] restarts the blower
and the stoker
.
Controller settings
n such a case the valve is fully opened
