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Building Technologies Boiler Sequence Controller RMK770 CE1P3132en
HVAC Products 3 Commissioning 23.04.2009
If the extension modules actually used and their positions do not agree with the values
on the controller list, a fault status message ”Fault extension module” is delivered.
In the case of an incorrectly configured extension module, some other fault status
message may also be displayed because that consequential fault has the higher priority
than fault status message 7101. It is therefore of advantage to have all present faults
displayed.
Number Text Effect
7101 Fault extension
module
Urgent message; must be acknowledged
In the event of fault, the LEDs on the extension modules blink. If everything works
correctly, the LEDs are lit.
3.4 Extra configuration
By configuring additional inputs and outputs, adaptations to the hydraulic circuit can be
made, and extra functions and function blocks can be activated.
By selecting a plant type, function blocks “Boiler sequence manager”, “Boiler 1” and
“Boiler 2” are activated (refer to subsection 3.3.5 “Use of configuration diagrams”).
The relevant function block is automatically activated when configuring an input or
output.
Plant hydraulics is defined by the basic configuration and the extra configuration of
plant components such as pumps, mixing valves, etc. In most cases, the configured
outputs determine the plant’s hydraulic circuit.
Additional inputs and outputs can activate various functions. A description of these
extra configurations is given with the relevant function block.
Main menu > Commissioning > Extra configuration > Boiler 1 > Inputs
Operating line Range Factory setting
Flue gas temperature sensor
RMK770…, RMZ7…* ---
* Here, the free outputs are available
The inputs on the basic module are designated RMK770.Xn, those on the extension
modules RMZ…Xn. If 2 identical extension modules are used, they are called
RMZ789(1) and RMZ789(2).
After the assignment, following appears: “Flue gas temperature sensor N.X4“ (N= short
designation of basic module RMK770).
By assigning input terminal RMK770.X4, the flue gas temperature sensor is activated.
For other settings, refer to chapter 7 “Boiler control”.
Assignments made or preconfigured assignments can be removed again by using
setting --- (none).
Main menu > Commissioning > Extra configuration > Boiler sequence manager > Outputs
Operating line Range Factory setting
Maint boiler return temp 3-pos
RMK770…, RMZ7…* ---
* Here, the free outputs are available for selection
Available for selection are the free terminal pairs (Q1/Q2, Q3/Q4, Q5/Q6) for the on and
off signal (refer to subsection 3.3.2 “Terminal assignment and properties of outputs”).
Refer to subsection 3.3.4 ”Maximum configuration”.
Fault handling
Fault status messages
Example of flue gas
temperature sensor
Example of common
maintained boiler
return temperature
Maximum plant size
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