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Building Technologies
Modular Heating Controller RMH760B
CE1P3133en
HVAC Products
3 Commissioning
05.02.2007
The inputs of the basic module will be termed RMH760.Xn, those of the extension
modules RMZ… . If 2 identical extension modules are available, they will be termed
RMZ782(1) and RMZ782(2).
After the assignment, following appears:
Flue gas temperature sensor
N.X4
(N = short
designation of basic module RMH760B).
By assigning input terminal RMK770.X4, the flue gas temperature sensor will be acti-
vated.
For other settings, refer to chapter 6 “Boiler temperature control”.
Assignments made or preconfigured can be removed again by using setting “---“
(none).
Main menu > Commissioning > Extra configuration > Boiler > Outputs
Operating line
Range
Factory setting
Maint boiler return temp 3-pos
--- / RMH760… etc.*
---
* Here, the free 3-position outputs are available for selection
The free pairs of terminals available for selection depend on the configuration made
and the configured extension modules (refer to subsection 3.2.2 “Configuration of the
universal inputs and outputs”).
The maximum plant size is limited by the number of available terminals and the number
of plant elements (pumps and actuators or positioning outputs):
Plant element
Maximum number
Pumps 6
Positioning outputs
6
Following applies:
•
A twin pump is regarded as one pump
•
A positioning output is used for an actuator or a modulating burner. If both the modu-
lating output and the 3-position positioning output are configured, the 2 are regarded
as one positioning output
3.3.2 Configuration
of
the universal inputs and outputs
The universal inputs can accept digital signals or passive and active analog signals.
The inputs are activated through basic and extra configuration. When activating an
input, the respective unit is assigned also. For this reason, input identifiers on the
RMH760B cannot be set. Exceptions are the 4 universal display inputs and the 4 fault
inputs.
The setting choices depend on the kind of configuration: Analog or digital input.
In the case of the analog inputs, the following setting choices are available:
•
Type reference
•
Measuring range
•
Measured value correction
The RMH760B is supplied with type Ni 1000 preselected for the temperature sensor.
The following types of input signals can be handled:
•
Ni 1000
•
2× Ni 1000
•
T1
•
Pt 1000
•
DC 0…10 V
•
NTC 575 (for outside temperature only)
Example:
Maintained boiler return
temperature
Maximum plant size
Analog inputs
Type reference
