Danfoss ECL Comfort 210 Installation Manual page 67

Installation Guide
Application A375.2 — up to 2 burner steps, P4 is the circulation pump in the DHW circuit
Application A375.3 — up to 2 burner steps, P4 is the circulation pump in heating circuit 2
Double-insulated (two-chamber) transformer
Terminal Description
19 Phase for alarm and burner B2
18
Alarm (A1)
17 B2 Burner ON / OFF
16
Phase for pump P4
15 K4 Control of circulation pump
14
Phase for control of pumps and burner
13 K3
Control of DHW heating pump, circuit 2 (A375.2) or circuit 3 (A375.3)
12 B1 Burner ON / OFF
11 K1
Control of circulation pump ON / OFF, circuit 1
10
Supply voltage 24 V a.c. - (SN)
9
Supply voltage 24 V a.c. - (SP)
8
Phase for motorized changeover valve output M1
7 M1
Motorized changeover valve, DHW circuit direction, circuit 2 (A375.2) or circuit 3 (A375.3)
6 M1
Motorized changeover valve, heating circuit direction, circuit 2 (A375.2) or circuit 3 (A375.3)
5
Phase for motorized control valve M2, circuit 2
4 M2
Motorized control valve - opening, circuit 2 (A375.3)
3
M2 Motorized control valve - closing, circuit 2 (A375.3)
* Relay contacts: 4 A for ohmic load, 2 A for inductive load
Factory established jumpers:
5 to 8, 9 to 14 , L to 5 and L to 9, N to 10
Danfoss District Energy
ECL Comfort 210 / 310, application A275 / A375
VI.GU.L1.02
Max. load
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
1 A / 24 V a.c.
1 A / 24 V a.c.
1 A / 24 V a.c.
1 A / 24 V a.c.
DEN-SMT/DK 67