Installation Guide
ECL Comfort 310, A377
(code no. 087H3817)
A377.1 (ex. a):
S1
M3
M2
S2
S5
P
P
ECL 310
A1
S4
P5
S3
P2
P
P
P
P
Danfoss
87H1521.10
© Danfoss | 2020.11
M1
S10
S9
S6
A
S8
B
P4
P3
AN19358646500100-000601 | 1
Installation Guide, ECL Comfort 310, A377
A377.1 (ex. b):
S1
M2
M1
S5
S10
S3
M3
ECL 310
S4
S2
S9
B
P4
P5
P2
A1
S6
S8
Danfoss
87H1522.10
A
P3
A377.1 (ex. c):
S1
M2
M1
S5
S9
S10
S3
M3
ECL 310
S4
P5
S2
P2
(S9)
A1
S6
S8
Danfoss
87H2145.13
A
P3
2 | © Danfoss | 2020.11
P1
B
P4
AN19358646500100-000601
Installation Guide, ECL Comfort 310, A377
A377.1, ex. d:
S1
M3
M2
M1
S2
S5
S9
S10
S4
S3
ECL 310
(S9)
P5
P2
A1
S6
S8
Danfoss
87H1584.10
A
P3
A377.2 (ex. a):
S1
M3
M2
S2
S5
P1
S4
S3
M1
B
ECL 310
P5
P2
S9
P4
A1
S10
S6
S8
Danfoss
87H2141.12
A
P3
AN19358646500100-000601
P1
B
P4
© Danfoss | 2020.11 | 3
Installation Guide, ECL Comfort 310, A377
A377.2 (ex. b):
S1
M2
S5
S3
ECL 310
M3
S4
S2
M1
S9
P1 P4
P5
P2
A1
S10
B
S6
S8
Danfoss
87H2143.12
A
P3
A377.2 (ex. c):
S1
M2
S5
S3
M3
M1
ECL 310
S4
S2
S9
P1
P5
A1
S10
B
P4
S6
S8
Danfoss
87H2142.12
A
P3
4 | © Danfoss | 2020.11
AN19358646500100-000601
Installation Guide, ECL Comfort 310, A377
A377.3, ex. a:
S1
M3
M2
M1
S2
S5
S10
S4
S3
ECL 310
P5
P2
S9
B
P4
A1
S6
Danfoss
87H1516.10
S8
A
P3
A377.3, ex. b:
S1
M3
M2
M1
S2
S5
P1
S9
S10
S4
S3
ECL 310
P5
P2
(S9)
B
P4
A1
S6
Danfoss
87H1585.10
S8
A
P3
AN19358646500100-000601
© Danfoss | 2020.11 | 5
Installation Guide, ECL Comfort 310, A377
ECL Comfort 210 / 310:
230 V a.c.
4 (2) A / 230 V a.c.
0,2 A / 230 V a.c.
230 V a.c.
A377.1, ex. a
A377.1, ex. b
A377.1, ex. c
A377.1, ex. d
A377.2, ex. a
A377.2, ex. b
A377.2, ex. c
A377.3, ex. a
A377.3, ex. b
P1 P2 P3 P4 P5
ü ü ü ü
ü ü ü ü
ü ü ü ü ü
ü ü ü ü ü
ü ü ü ü ü
ü ü ü ü ü
ü ü ü ü
ü ü ü ü ü
ü ü ü ü ü
6 | © Danfoss | 2020.11
AN19358646500100-000601
Installation Guide, ECL Comfort 310, A377
ECL Comfort 210 / 310:
24 V a.c.
24 V a.c.
P1 P2 P3 P4 P5
A377.1, ex. a
A377.1, ex. b
A377.1, ex. c
A377.1, ex. d
ü ü ü ü ü
ü ü ü ü ü
ü ü ü ü
ü ü ü ü
4 (2) A / 24 V a.c.
1 A / 24 V a.c.
A377.2, ex. a
A377.2, ex. b
A377.2, ex. c
A377.3, ex. a
A377.3, ex. b
ü ü ü ü ü
ü ü ü ü ü
ü ü ü ü
ü ü ü ü ü
ü ü ü ü ü
AN19358646500100-000601
© Danfoss | 2020.11 | 7
Installation Guide, ECL Comfort 310, A377
24 V a.c. / 230 V a.c. safety thermostat
1-step closing
ECL 210 / 310
M1
ECL 210 / 310
Danfoss
87H2105.10
Danfoss
87H2106.10
ECL 210 / 310
M1
M2
Danfoss
87H2107.10
8 | © Danfoss | 2020.11
AN19358646500100-000601
Installation Guide, ECL Comfort 310, A377
24 V a.c. / 230 V a.c. safety thermostat
1-step closing
ECL 210 / 310
M2
24 V a.c. / 230 V a.c. safety thermostat
2-step closing
ECL 210 / 310
Danfoss
87H2108.10
Danfoss
87H2109.10
ECL 210 / 310
M1
Danfoss
87H2110.10
M2
AN19358646500100-000601
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Installation Guide, ECL Comfort 310, A377
Pt 1000 (1000 Ω / 0 °C)
87H1487.11
Danfoss
230 V a.c.
ECL Comfort 210 / 296 / 310
28
29
30
31
32
S2 S1
L
N
PE
S2
S1
+
B
ECL 485
S2 S1
L
230 V a.c.
N
PE
ECL Comfort 210 / 296 / 310
28
29
30
31
32
S2
S1
+
B
ECL 485
S7: 0 - 10 V
10 | © Danfoss | 2020.11
ECL 310
Danfoss
87H2152.10
AN19358646500100-000601
Installation Guide, ECL Comfort 310, A377
ECA 30 / 31
AN19358646500100-000601
© Danfoss | 2020.11 | 11
Installation Guide, ECL Comfort 310, A377
Master / slave
Danfoss
87H2052.11
Modbus
M-bus
B
A
B
A
ECL 210 / 296 / 310
B
A
B
A
Danfoss
87H2060.11
B
A
B
A
ECL 296 / 310
B
A
B
A
Danfoss
87H2061.11
12 | © Danfoss | 2020.11
AN19358646500100-000601
Installation Guide, ECL Comfort 310, A377
M-bus
ECL 296 / 310
+
B
A
B
A
S.Gnd
S1
M-bus
87H1308.11
Danfoss
29
METERMETER
30
31
32
33
34
35
36
37
38
AN19358646500100-000601
© Danfoss | 2020.11 | 13
Ω
Installation Guide, ECL Comfort 310, A377
Pt 1000 (IEC 751B, 1000 Ω / 0 °C)
Heat curves
°C
-40
-30
100
110
120
130
140
150
-50
-20
-10
10
20
30
40
50
60
70
80
90
803
843
1600
1500
Ω
882
922
1400
961
1000
0
1039
1300
1078
1117
1200
1155
1194
1232
1271
1309
1100
1000
1347
1385
1423
1461
1498
900
800
1535
1573
-50
-25 0255075 100 125 150
°C
120
2.2 2.6 3.0 3.41.8
110
1.4
100
90
1.0
80
70
0.6
60
50
40
0.2
30
20
10
-30 -20 -10 0 10 20
14 | © Danfoss | 2020.11
AN19358646500100-000601
Installation Guide, ECL Comfort 310, A377
ECA 30
AN19358646500100-000601
© Danfoss | 2020.11 | 15
Installation Guide, ECL Comfort 310, A377
?
?
-> Playlists -> How-to Videos -> District Energy installation videos
16 | © Danfoss | DHS-SMDT/DK | 2020.11
ECL Comfort 310, A377: www.heating.danfoss.com
https://www.youtube.com/user/DanfossHeating
*087H9080*
AN19358646500100-000601
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