Unigas HTLX92R Installation Manual Download

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ExtLC X5-03

= three-point external controller (X5-03 terminals)

Int LC

= internal controller (LMV5x) (it switches between 2 set points, W1,W2 set thought AZL. the switch from W1 and W2 is realized opening/closing

the LMV5x... terminals X62.1, X62.2).

Int LC Bus

= internal controller and set point setting via bus connection

Int LC X62

= internal controller (LMV), but set point is externally controlled by means of a voltage/current signal on X62 terminals

Ext LC X62

= external controller, the burner output is controlled by means of a voltage/current signal on X62 terminals

Ext LC Bus

= external controller, the burner output is controlled via bus

ATTENTION: in case of FGR, it is not possible to connect a modulating temperature probe at the X60 door of the LMX5...

See the proper chapter for configuration.

6 Setting the probes and set-points

If the LMV5x internal load controlled is used, a temperature or pressure probe can be connected to the terminal X60 or X61. In this case, set the type of
probe and its operating range.

6.1

Configuration of a temperature probe at X60 door

ATTENTION: If the external load controller is set do not connected to terminals X60 or X61.

ATTENTION: If the burner is equipped with FGR with temperature compensation a Pt1000 must be set.

ATTENTION: Depending on the sensor, the value is visualized as °C or bar.

Following the below route access to the programming levels of the menu by means the Esc

1st level

2nd level

3rd level

4th level

5th level

6th level

Description

Params & Display

Menu level for making the parameter
set- tings

LoadController

Settings for the internal load controller

Configuration

General configuration of the load
controller

Sensor Select

Select actual value input

Pt100
Ni1000
Temp sensor
Press sensor
Pt100Pt1000
Pt100Ni1000
NoSensor

See the table below for the meaning of
the choice.

Possible settings are:

Probe Description
Pt100

Temperature sensor Pt100 at the input X60, internal temperature limiter function = activated

Pt1000

Temperature sensor Pt1000 at the input X60, internal temperature limiter function = activated

Ni1000

Temperature sensor LG-Ni1000 at the input X60, internal temperature function = activated

TempSens Temperature sensor at the input X61, internal temperature switch function = deactivated

PressSens Pressure sensor at the input X61, internal temperature switch function = deactivated

Pt100
Pt1000

Temperature sensor Pt100 at input X60 for temperature controller and temperature limiter function and temperature sensor Pt1000 at input
X60 additionally for temperature limiter function

Pt100
Ni1000

Temperature sensor Pt100 at input X60 for temperature controller and temperature limiter function and temperature sensor LG-Ni at input
X60 additionally for temperature limiter function.

No Sensor No actual value sensor (e.g. in the case of external predefined loads and without internal temperature limiter).

ATTENTION: If a boiler second probe is to be connected to terminals (1000 Ohm only), internal functions TL_ThreshOff and
DiffIntervTL_SD_On are activated automatically (see paragraph SETTING FUNCTIONS “TL_ThreshOff” AND “TL_SD_On”).