Danfoss ECL Comfort 310 Installation Manual page 7

Installation Guide
Application A376.3 in general:
The application is similar to the A376.1 application but the
motorized control valves are controlled by means of 0-10 volt
signals (analog signals). The triac outputs are not active for
activating 3-point controlled actuators. The application A 376.3
requires the internal I/O module ECA 32 in order to activate 0-10
volt controlled actuators.
Application A376.9 in general:
The application is similar to the A376.1 but with special functions.
The application A376.9 requires the internal I/O module ECA 32 in
order to receive signals from the inputs S11 - S16.
Heating circuits 1 and 2:
• There are no room temperature influence possibilities.
• The secondary return temperatures (S2 and S10) are used for
monitoring only.
• The pressure measurings, 0-10 volt (S7 and S14,) are used to
activate an alarm if the actual pressure is higher or lower than
the chosen settings.
DHW circuit 3:
• The secondary return temperature (S6) is used for monitoring
only.
All circuits:
• The temperatures (S11 and S12) are used for monitoring only.
• The switch inputs (S8, S15 and S16) are related to the circuits
1, 2 and 3 respectively. Typically used as alarm signal for
malfunction of the circulation pump in question.
Danfoss District Energy
ECL Comfort 310, application A376
A376.3 example b:
A376.9 example a:
S 1
M2
S 5
S 11
M3
S12 S13
M1
A376.9 example b:
S 1
M2
S 5
S 11
S12
M1
VI.GU.B1.02
ECL 310
S 8 S15 S16
R4
+ ECA 32
S 3
P 2
S 2 S 7
S 9
P 3
S14
S10
S 4
S 6
P 1
ECL 310
S 8 S15 S16
R4
+ ECA 32
S 3
P 2
S 2 S 7
M3
S 9
P 3
S10 S14
S 4
S 6
P 1
DEN-SMT/DK 7