Bosch Heatronic 4000 Installation & Operating Instructions Manual page 37

Setup Menu (3 of 6)
Item Field
Access: ADV
Access: ADV
Access: ADV
Access: ADV
Access: ADV
Access: ADV
Access: ADV
Access: ADV
Access: ADV
Access: ADV
BTC461503101C | 6720810369 (2018/03)
Range
150 to 350°F, OFF
COMMON FLUE MAXIMUM
(65.5 to 177.0°C) The maximum common flue temperature that is used for vent temperature limiting.
The boiler plant will be shut down if the common flue temperature rises to the
Default: OFF
common flue maximum temperature. Set to OFF if only common flue temperature
monitoring is desired.
STAGE DELAY
AUTO, 0:30 to 40:00
The minimum time delay between the operation of boiler stages, either within a
min
boiler or between boilers.
Default: AUTO
Requirements: This item is only available if there are at least two boilers set to
auto (Boiler Enable = AUTO).
MODULATION MODE CONDENSING
Selects either sequential or parallel modulation for multiple modulating condensing
SEQ or PAR
boilers.
Default: PAR
Requirements: This item is only available if there are at least two boilers set
to auto (ENABLE=AUTO), condensing (Boiler Condense = YES) & Modulating
(Boiler Type = MOD or EMS).
MODULATION MODE NON-CONDENSING
Selects either sequential or parallel modulation for multiple modulating non-
SEQ, PAR
condensing boilers.
Default: SEQ
Requirements: This item is only available if there are at least two boilers set to auto
(Boiler Enable = AUTO), non-condensing (Boiler Condense = NO) & Modulating
(Boiler Type = MOD or EMS).
STAGING MODE CONDENSING
Selects either low-high-low-high (LHLH) or low-low-high-high (LLHH) staging for
LHLH or LLHH
multiple two-stage condensing boilers.
Default: LHLH
Requirements: This item is only available if there are at least two boilers set to
auto (Boiler Enable = AUTO), condensing (Boiler Condense = YES) & two stage
(Boiler Type = 2STG).
STAGING MODE NON-CONDENSING
LHLH or LLHH Selects either low-high-low-high (LHLH) or low-low-high-high (LLHH) staging for
multiple two-stage non-condensing boilers.
Default: LHLH
Requirements: This item is only available if there are at least two boilers set
to auto (Boiler Enable = AUTO), non-condensing (Boiler Condense=NO) & two
stage (Boiler Type = 2STG).
OFF or ON ROTATION CONDENSING BOILER GROUP
Selects the equal run time rotation feature within the condensing boiler group.
Default: ON
Requirements: This item is only available if there are at least two boilers set to
auto (Boiler Enable = AUTO) & condensing (Boiler Condense = YES).
ROTATION NON-CONDENSING BOILER GROUP
OFF or ON
Selects the equal run time rotation feature within the non-condensing boiler
Default: ON
group.
Requirements: This item is only available if there are at least two boilers set to
auto (Boiler Enable = AUTO) & non-condensing (Boiler Condense = NO).
FIXED LEAD
OFF or ON
Selects whether or not the first boiler is to be excluded from the rotation sequence.
Default: OFF
If set to ON, boiler 1 is always the first to fire.
Requirements: This item is only available if boiler 1 is enabled (Boiler Enable =
AUTO) & all available boilers are either condensing or non-condensing.
FIXED LAST
OFF or ON
Selects whether or not the last boiler is to be excluded from the rotation sequence.
Default: OFF
If set to ON, boiler 4 is always the last to fire.
Requirements: This item is only available if boiler 4 is enabled (Boiler Enable =
AUTO) & all available boilers are either condensing or non-condensing.
Description
37 of 60 Heatronic 4000