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Commissioning
Logamatic EMS RC35 programming unit - Subject to technical modifications
22
5
5.6
Shutting down/switching off
The RC35 programming unit is powered via the heating system and remains permanently ON.
The heating system is only switched off, for example, for maintenance work.
B
To start up and shut down the heating system: set the ON/OFF switch on the boiler programming
unit to 1 (ON) or 0 (OFF).
5.7
Operating information
EMS BUS subscribers
In a BUS system, only
one subscriber
can carry out the calculations for a heating circuit.
Consequently, only one RC35 programming unit may be installed in each heating system. If
additional room controllers (e.g. RC2x) are required, these must be installed as remote control
units
1)
with a set heating circuit address (
Æ
page 27).
Thermostatic radiator valves in the reference room
Radiators in the reference room do not require thermostatic valves
2)
for room temperature-
dependent control. Fully open any thermostatic radiator valves in the reference room.
Pump kick
1)
In all operating modes, all the heating circuit pumps are switched on and then off again for
10 seconds every Wednesday at 12 noon to prevent pump damage. The mixers are then set to
“OPEN” for 10 seconds and then “CLOSED”. All pumps and mixers then return to their normal,
regulated operation.
We recommend you hand these installation and service instructions to the customer for
safekeeping near the heating system.
After shutting down or in the event of a power failure, the date and time are retained for
up to 8 hours. All other settings are retained permanently.
1) This function is not available on boilers with UBA1.x or DBA.
Disable this on boilers with integral weather-compensated control.
2) Room where a RC35 or RC2x/RC20/RF is installed.