0020193968_05 ecoTEC exclusive Installation and maintenance instructions
23
▶
Make sure that the rated voltage of the
mains is 230 V.
1.
Observe all valid regulations.
2.
Make sure that the nominal mains voltage is 230 V.
3.
Provide one common power supply for the boiler and
for the corresponding control:
–
Power supply: Single-phase, 230 V, 50 Hz
–
Fuse protection:
≤
3 A
4.
Do not interrupt the mains supply with a time switch or
programmer.
5.
Open the electronics box. (
→
Page 22)
6.
Connect the product using a fixed connection and an
electrical partition with a contact gap of at least 3 mm
(e.g. fuses or power switches).
7.
Isolation should preferably be by a double pole
switched fused spur box having a minimum contact
separation of 3 mm on each pole. The fused spur box
should be readily accessible and preferably adjacent to
the boiler. It should be identified as to its use.
8.
Route a three-core power supply cable that complies
with the relevant standards through the grommet and
into the product.
–
Power supply cable: Flexible duct
9.
Carry out the wiring. (
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Page 22)
10.
Remove the supplied plug from the bracket in the elec-
tronics box and screw the plug onto the power supply
cable.
11.
Close the electronics box.
12.
Make sure that access to the power supply is always
available and is not covered or blocked.
7.10.4 Installing the product in a wet room
Danger!
Risk of death from electric shock!
If you install the product in a room with high
levels of moisture, e.g. a bathroom, observe
the nationally recognised technical standards
for electrical installations. If you use the fact-
ory-installed connection cable, if installed,
with an earthed plug, there is a risk of death
from electric shock.
▶
Never use the factory-installed connection
cable with earthed plug when installing the
product in a moist environment.
▶
Connect the product using a fixed connec-
tion and an electrical partition with a con-
tact opening of at least 3 mm (e.g. fuses
or power switches).
▶
Use a flexible line for the mains connec-
tion line, which is routed through the cable
duct into the product.
1.
Open the electronics box. (
→
Page 22)
2.
Detach the ProE plug from the PCB slot for the mains
connection (X1).
3.
Unscrew the ProE plug for the factory-installed power
supply cable, if installed.
4.
Instead of the factory-installed power supply cable, if
installed, use a suitable three-core power supply cable
which complies with the relevant standards.
5.
Carry out the wiring. (
→
Page 22)
6.
Close the electronics box.
7.
Observe the flue-gas connection that is required on a
room-sealed air/flue system. (
→
Page 22)
7.10.5 Connecting controls to the electronics
1.
Install the control if necessary.
2.
Open the electronics box. (
→
Page 22)
3.
Carry out the wiring. (
→
Page 22)
4.
Observe the wiring diagram in the appendix.
Condition
: Connecting a weather-compensated control or a room temperat-
ure control via eBUS
▶
Connect the control to the eBUS connection.
▶
Bridge the 24 V =
RT
connection (X100 or X106), if there
is not already a bridge.
Condition
: Connecting a low-voltage control (24 V)
▶
Remove the bridge and connect the control to the
24 V =
RT
connection (X100 or X106).
Condition
: Connecting 230 volt controller
▶
Connect the switched live supply of your 230V RT to
the RT marked X1 position (besides PE L N). Do NOT
connect the 230V to any other terminal e.g. not to X100.
Condition
: Connecting a limit thermostat for underfloor heating
▶
Remove the bridge and connect the limit thermostat to
the
Burner off
connection.
5.
Close the electronics box.
6.
For multi-circuit controls, change
D.018
from
Eco
(in-
termittently operating pump) to
Comfort
(continuously
operating pump). (
→
Page 33)
7.10.6 Replacing the gas family coding resistor, if
required
1.
Open the electronics box. (
→
Page 22)
X3
1
X12
1
2.
Remove the gas family coding resistor
(1)
(plug X24)
(factory setting: natural gas = yellow) and plug in the
coding resistor from the bag of small parts (liquefied
petroleum gas = grey).
3.
Close the electronics box.
4.
When starting up in the installation assistant or retro-
actively via diagnostics code
D.087
, set the correct gas
type.
7.10.7 Connecting additional components
You can actuate an additional component with the aid of the
auxiliary relay that is installed, and you can actuate two other
components with the multi-functional module.
