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Heatronic 40007738003455 (2014/04) 3 of 60
Sequence of Operation
The Heatronic 4000 is able to operate up to four boilers as a
heat source. Each boiler is independently configured allowing
for maximum plant flexibility.
Boiler Enable
- - -- -- -- - -- -- -- -- -- - - - -- -- -- -- -- - -- --
This setting selects whether the boiler is operational or not.
OFF
The boiler is disabled & will not be included in the plant
operation.
AUTO
The boiler is enabled & will be included in the plant
operation.
Copy Boiler 1
- -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - -
Many boiler installations will have multiple identical boilers.
To reduce the number of settings required, certain settings
of boiler 1 are copied to boiler 2 by setting the Boiler 2 Copy
setting to Boil1. Copy settings are also available for boiler 3
& boiler 4.
OFF
The settings from boiler 1 are not copied. This allows for
individual boiler settings.
Boil 1
The settings from boiler 1 are copied.
Bosch / Buderus Boiler
- -- - - - - - - - - - - - - - - - - - - - - - - - -
This setting selects whether the boiler is one of the pre-defined
Bosch / Buderus boiler models.
YES
The boiler is one of the available Bosch / Buderus models. The
Bosch / Buderus Model setting allows for selection of one of
the pre-defined Bosch / Buderus models.
NO
The boiler is not one of the pre-defined Bosch / Buderus
models.
Bosch / Buderus Boiler Model
- - - - - - - - - - - - - - - - - - - -
When a Bosch / Buderus boiler model is selected, the control
loads default values for the majority of the boiler settings. Some
of the defaults can be adjusted while others are hard-coded.
Refer to the Appendix on page 58 in this manual for a listing of
the different Bosch / Buderus boiler models with their respective
pre-defined default values.
Bosch / Buderus Fuel Type
- ------ -------- --------
Some of the Bosch / Buderus boiler models support multiple
fuel options.This setting selects what fuel(s) the applicable
Bosch / Buderus boiler model is to use. As with single fuel type
Bosch / Buderus boiler models, the control loads defaults for
the majority of the boiler settings.
GAS
The boiler fuel is gas.
OIL
The boiler fuel is oil.
DUAL
The boiler includes both gas and oil as a fuel type.
Boiler Type
- - - - - - - - - - - - - - -------------------------
The Heatronic 4000 has four different boiler types to choose from.
Use the Boil TYPE setting to select one of the following:
MOD
The modulating output operates a modulating boiler by controlling
the burner firing rate. The Stage 1 relay is also used to give
a boiler enable to allow the modulating boiler to go through
ignition sequence. The Stage 1 relay may not be required on
all modulating boilers.
1STG
The Stage 1 relay operates a single, stage boiler by cycling
the burner stage on & off.
2STG
The Stage 1 & Stage 2 relays operate a single, two stage boiler
by cycling the burner stages on & off.
EMS
The modulating output operates a boiler that interprets an analog
input signal as a target temperature. The EMS Temperature
Minimum, EMS Temperature Maximum and, if applicable, Vdc
Signal Minimum define the analog signal and temperature
rails. The Stage 1 relay is also used to give a boiler enable
to allow the EMS temperature boiler to go through ignition
sequence. The Stage 1 relay may not be required on all EMS
temperature boilers.
Condensing
--------------------------------------
This setting selects whether the boiler is condensing or non-
condensing & defines what boiler group it is part of.
NO
The boiler is non-condensing & is part of the non-condensing
boiler group.
YES
The boiler is condensing & is part of the condensing boiler
group.
Modulating Type
---------------------------------
The MOD TYPE setting selects the analog output signal used
for modulating (MOD) and temperature (EMS) boiler types.
0-10
The modulating output is 0-10 V (dc).
4-20
The modulating output is 4-20 mA.
The 4-20 mA output can be converted to a 0 - 135 Ω output
using a 0 - 135 Ω Converter 005. Refer to the Modulating Boiler
Wiring section of the Control Wiring section.
Fire Delay
- - - - - - - - - - - - - - --------------------------
The Fire Delay sets the time it takes for the boiler to
generate flame from the time the boiler turns on.
Boiler Contact Closed
Time
Fire Delay
Burner On
Boiler (Source (#) Menu) Setup & Operation
3


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