Menu 1 - System Parameters; Menu 2 - Boiler Parameters - Worcester Greenstar 25Si Compact Installation, Commissioning And Servicing Instructions

FAULT FINDING AND DIAGNOSIS

8.5.3 MENU 1 - SYSTEM PARAMETERS

Not applicable for Greenstar Si Compact
Initially Menu 1 will be displayed, but will contain no options.

8.5.4 MENU 2 - BOILER PARAMETERS

1. Select Menu 2 via the and
2. Press and hold the button for one second to enter Menu 2.
ok
This menu lists the boiler parameters, which can be adjusted in this
menu.
To modify setting, select the desired menu option (refer to table 29) and
press the button, the option will flash.
ok
Adjust the parameter using the
the button to confirm.
ok
A will display for three seconds to confirm the
update of the new value.
If the setting is confirmed please record the saved value in the empty box
next to the relevant setting in Table 29.
The same process is used for adjusting all Menus 1, 2, 3 and Test.
eco
°C
reset ok
°F
Menu 1
e e
min max
Menu 2
eco
°C
reset ok
°F
Menu 2
e e
min max
2.2C
Fig. 126 Menu 2 selection
Para Parameter Description
No.
2.1A Maximum power Range rate the CH of the boiler.
CH Adjustment in kW.
The maximum is 24kW.
Table 29 Menu 2 parameters
66
ErP .
scroll buttons.
and arrow buttons and press
2
1 1 3
0 bar 4
1.
min max
°C
°F
2
1 1 3
0 bar 4
2.
min max
°C
°F
6720807277-12.1Wo
Updated
value
Para Parameter Description
No.
2.1C Pump head Select the right pump map
selection (load and modulation
percentage) to suit the
property.
0 = Variable speed setting
1 to 4 option pump maps
2.1E Pump energy 4 = mode ON,
saving mode 5 = mode OFF
2.1H Minimum pump This parameter is only visible
speed (pump when 2.1C is set to 0. Then the
speed at maximum min.pump speed can be set.
CH burner load)
2.1J Maximum pump This parameter is only visible
speed (pump when 2.1C is set to 0. Then the
speed at maximum max.pump speed can be set.
burner load)
2.2C Air purge mode This feature can be selected to
purge the system and boiler of
air.
0 = off, 1 = auto, 2 = on
2.3B Anti fast cycle time This sets the amount of time
for CH between stop and starts of the
main heat exchanger. The
default is 5 minutes, the range
is 3 to 45 minutes.
2.3C Anti fast cycle flow This sets the temperature drop
temperature before the burner re-starts, 6°K
hysteresis is the default. This is used in
(negative tolerance conjunction with the "Anti fast
only) cycle time"
The range is from 2 to 15°K in
1°K steps.
2.3F CH delay after DHW The default time is 1 minute
demand and can be adjusted to be
between 0 and 30 minutes.
This feature helps to keep the
DHW heat exchanger hot if
frequent demands are made.
The boiler will not burn extra
gas.
CH will not be heated during
this set time period.
2.5F Service reminder Between 1 and 72 months can
time be set
2.7A Operation/fault 0 = The blue light will only
indicator (blue operate as a flashing fault alert.
light) activation 1 = The blue light will operate
as a boiler operation and fault
alert. This is set to 1 by default.
2.9E Turbine signal Delay time set to ignore a
delay temporary DHW demand.
Maximum delay is three
seconds which can be set in
¼ second increments,
e.g. 0.5 seconds is displayed as
2 or 1 second as 4.
2.9F Pump post purge The default pump overrun time
time for CH is 3 minutes. This can set
between 3 and 30 minutes. The
actual time will be affected by
the Pump Energy Saving mode.
Table 29 Menu 2 parameters
Greenstar Si Compact
Updated
value
ErP - 6 720 813 278 (2015/07)