Other Outputs; Analog Output; Operational Signal; Common Alarm - DeDietrich 310 ECO Series Installation And Operating Manual

8.7.4 Other outputs

8.7.5 Analog output

Depending on the option
settings in the service level (see
section 13.2.13), the analog
output signal is able to transmit
the following values: This output
relates to terminals X29-13(+)
and X29-14(-)
8.7.6 Operation signal
As standard the boiler is supplied with internal relays to indicate boiler "Low fire" and boiler on "High fire".
The relay contacts are volt free and close to confirm operation.
For the "boiler Low fire" signal connect to terminals X27-6 and X27-7.
For the "boiler High fire" signal connect to terminals X27-4 and X27-5.
For On/Off signal (regardless of firing position): Set parameter  to 60 in the service level access
Contact load:
•
Maximum voltage:
•
Maximum current:
8.7.7 Common alarm (Lockout or power ON signal)
Alarm contacts (dry-volt free)
X27.3 (Common) contact
X27.2 (Normally Closed) contact
X27.1 (Normally Open) contact
•
For alarm indication status (Boiler Lockout or loss of power), connect remote alarm signal
between X27.3 (Common) and X27.2 (Normally Closed)
•
For Power "ON" indication status (Normal boiler status), connect remote signal between X27.3
(Common) and X27.1 (Normally Open)
See Section 8.7.6 for operating signal indication (Actual boiler firing signal) connections.
8.7.8 External gas valve control
As standard the boiler is supplied with an internal relay that is energized when there is a heat internal
relay that is energized when there is a heat demand, this applies a 120 V supply to terminals X27-15
(live) and X27-14 (neutral). The relay is de-energized when the gas valve multiblock closes at the end of
the heat demand. Additional external interlocks (by others) may be required in a multi boiler installation.
 Important!!! This supply cannot be used to control an external gas valve if it supplies other
appliances.
- External gas valve voltage:
- Maximum current:
Output Signal
Description
[0-10Vdc]
0 Volts Boiler off - standby
0.5 Volts Alarm
1.0 Volts Shut-off
Output between 20 & 100% or Flow temperature
2.0 - 10 Volts
between 68 – 212°F [20 - 100°C]
table 06 - Analog °output signal
120 V
1 A.
120 Volts
1 Amp.
38
De Dietrich Gas 310/610 ECO