Gas 310 Modulating Controls General; Single Boiler; Multiple Boiler; Bms Analog Control - DeDietrich 310 ECO Series Installation And Operating Manual

8.6.2 Gas 310 Modulating controls general

(2 wire control)
To make full use of the boiler's modulating feature, a 0-10v [dc] input control will be needed.
Some controls can provide weather compensation to achieve maximum efficiency and minimum boiler cycling
whilst maintaining design condition within the building.
A. Modulating boiler control [single boiler]
An optional optimizing weather-compensated boiler control can be
used for single boilers. The compensator can regulate the boiler
output against outside weather conditions, and provide time and
temperature control over the DHW. The compensator is mounted
in a reference room (uses an internal sensor to monitor room
temperature) and is interfaced to communicate with the boiler's
controls via the two wire serial interface. On site connection of the
outside and common flow sensors complete the... Set the  value
of the boiler control
Operation parameter  to .

Note: Please refer to the control documentation for installation requirements.
B. Modulating multiple boiler controller
An optimizing, weather-compensated boiler control can be used to
control multiple boilers. The compensator can regulate the boiler
output against outside weather conditions, and provide time and
temperature control over the DHW. The multiple boiler control-
compensator is mounted centralized and can be interfaced to
communicate with the boiler's control the supplied adapter. On site
connection of the outside and common flow sensors complete the
installation. Set the  value of the boiler control operation
parameter  to .
Note: Please refer to the control documentation for installation
requirements.
8.6.3 BMS Analog control (0-10 Volt DC)
Input resistance R = 66 k.
im
The heat output modulates between the minimum and the maximum value on the basis of the voltage supplied by
an external analog (0-10V) input. To control the boiler with an analog signal, the signal has to be connected on
terminals X29-11 (+) and X29-12 (-) of the terminal strip in the instrument panel.
 Important!!! When analog control is opted, the on/off –contact and the high/low –contact have higher priority
(e.g. frost protection).
De Dietrich Gas 310/610 ECO
Fig. 21 Temperature control via analog (0-10 Volt) signal
Fig. 22 °output control via analog (0-10 Volt) signal
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