Connect The Flue Gas Damper To The Power Supply (Cascade Operation Only); Connecting The Stratification Cylinder - Wolf COB-2 Operation Instructions Manual

Oil condensing boiler for central heating with stratification cylinder
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Installation
Terminal
LP (PP)
A1
E1
E2
AF
SF
eBus
NOTE
Increased electromagnetic interference at the installation site!
Possible control faults.
► Fit screened sensor leads and eBus cables.
► One end of the cable shield must be connected to the PE potential in the control unit.
5.10.6
Connect the flue gas damper to the power supply (cascade operation only).
► Open the lower casing cover of the HCM-2.
► Strip insulation from the power cable of the damper motor and signal contact.
► Pull the Rast5 plug from output A1.
► Push the power cable of the flue gas damper motor through the strain relief (insert) and secure.
► Terminate the cores at the Rast5 plug A1 and insert the plug.
► Pull the Rast5 plug from input E1.
► Push the limit switch cable of the flue gas damper motor through the strain relief (insert) and secure.
► Terminate the cores at the Rast5 plug E1 and insert the plug.
► Close casing cover.
5.11
Connecting the stratification cylinder
► Set the ON/OFF switch of the cylinder primary pump to constant pressure
pump).
Circulation in conjunction with TS stratification cylinder
The circulation control system of the heat generator prevents the stratified water from mixing during draw-
off and charging.
► Connect the circulation to the programmable output of the heat generator.
3066501_201910
Explanation
Cylinder primary pump
Maximum of 1.5 A per output, no more than 600 VA in total
Programmable output (HG14) 230 VAC, e.g. DHW circulation pump
Maximum of 1.5 A per output, no more than 600 VA in total
Programmable input (HG13), e.g. flue gas damper or room thermostat
5kNTC common sensor = header
Alternative 0-10 V control, e.g. 8V = 80% heating output
The maximum external voltage at input E2 is 10 V. Anything higher will destroy the control
PCB 1(a) = 10 V, 2(b) = GND.
5 k NTC outside sensor
5kNTC cylinder sensor
(WOLF control accessories e.g. BM-2, MM-2, KM-2, SM1-2, SM2-2)
(Fig. 6.3 Cylinder primary
WOLF GmbH | 45

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