Plum ecoMAX 200 W, Operation And Maintenance Manual

Page: 21 / 27

21
12 Service settings
Enter the service settings by holding the „F”
button in the main window for 8 seconds.
Exit from service settings is made
automatically after a period of idleness, or
after holding the F button.
name sym
bol
range unit typical
value
Pump activation
temperature
n0
0…80  C 40
Boiler temperature
hysteresis
n1
1…5 
C
2
Min. airflow power
n2
10…99 %  14
Min. boiler temperature
n3
40…55  C  50
Max. boiler
temperature
n4
70…90  C  85
Fuel shortage detection
time
n5
2…250 Min
.
20
Screen brightness
n6
0…100 % 80
Fan revolutions‟
reduction temperature
n7
  C  5
Central heating pump
down-time by
thermostat
n8
0…99 min
.
0
Extinguishment
detection method
n9
1,2 1
Boiler preset
temperature decrease
by thermostat
r0
0,1…20  C  0
Hot utility water
temperature hysteresis
r1
1…20  C 5
Boiler preset
temperature increase
by hot utility water
r2
0…20 
C
 5
Max. hot utility water
temp.
r3
20…85  C  65
Extending hot utility
water pump operation
r4
0,1…30 min
.
0
Fuel shortage detection
– emission temperature
r5
20…250  C 90
Disabling the CH pump
-operation with a buffer
r6
0…1
0
Emission temperature -
firing up mode 3
r7
10…40
(x10)
 C 30
(300)
Firing up time mode3
r8
0, 250 min
30
Restoring service
parameters
r9
1,0 - 0
12.1 Central heating pump activation
temperature n0
The (n0) parameter specifies the
temperature at which the central heating
pump is activated. After reaching the
temperature equal to the
Central heating
pump activation temperature parameter, the
central heating pump is activated. This
protects the boiler against retting caused by
its being cooled down by hot water returning
from the system.
Disabling the central heating pump
on its own does not guarantee
protecting the boiler against retting,
and resulting corrosion of the boiler.
Additional automatics should be
applied, e.g. four-way valve, or
thermostatic three-way valve.
12.2 Boiler hysteresis n1
The (n1) parameter determined the
temperature at which the boiler returns from
the SUPERVISION mode to the OPERATION
mode. The regulator returns to the
OPERATION mode at the temperature
preset
boiler temperature – boiler hysteresis.
12.3 Minimum airflow power n2
When the regulator is turned on for the first
time, it is necessary to set the user-defined
parameter
Minimum airflow power. After
setting a value of e.g. 14%, the user will be
able to set airflow power of at least 14%.
The
minimum airflow power should be
determined after observing the fan
behaviour. You must determine minimum
value of revolutions at which the fan can
rotate properly, i.e. freely, without rattling.
Set boiler regulation mode = 1 Maximum
revolutions and Minimum revolutions to the
value of revolutions you want to test. For
most fans, this will be 12 – 15%.
12.4 Minimum boiler temperature n3
This parameter can be used to prevent the
user from setting too low preset boiler
temperature. If the boiler operates at too low
a temperature, it can cause its rapid
damage, corrosion, soiling, etc.
Set the value in accordance with the
boiler
manufacturer‟s
recommendations
12.5 Maximum boiler temperature n4
This parameter can be used to prevent the
user from setting too high preset boiler
temperature.