M&C TechGroup BA-P4 Operator's manual - Manual (Page 16)

16
Gas sampling and conditioning technology 10-1.1-ME
For signalling the group alarm, the contacts 5 and 9 are available in the Sub-D-Plug (see Figure 3).
This is a floating NO contact with a switching capacity of maximum 24V, 1A. Alarm takes place within
a temperature range of

10°C for the nominal temperature and if the inlet pressure falls below a value
of 4bar.
Control of the
“Power/On” and “Air/On” functions (switches on front panel, see Figure 2) can takes
place either internally or externally by the customer (see Figure 3).
N O T E !
For internal control, a jumper must be provided between contacts 1 and 6 in
the Sub-D-Plug !
External control takes place by the customer by means of floating contacts (see Figure 3).
N O T E !
For external control, the jumper between contacts 1 and 6 in the Sub-D-Plug
must be removed !
With external control, the selector switch on the front panel of the combustion air conditioning unit is
without function. The operating status is still displayed by the two green LED indicators.
The two fuses F1 and F2 (2A) are located below the inlet connector for non-heating apparatus X1 at
the rear of the BA housing.
13 INITIAL OPERATION
Prior to initial operation, the system and process-specific safety measures must be observed !
The following steps must be carried out prior to initial operation:

Connect the combustion air conditioning unit to the supply system; prior to initial operation,
compare the system voltage with the voltage shown on the rating plate.

If necessary, route the group alarm contact output to the instrument board.

Move the “Power/On” switch into the upper position (green LED lights).

Check the nominal temperature of 500°C at the temperature controller (see 16.).
N O T E !
The maximum operating temperature must not exceed 700°C !

When operational readiness has been reached (about 45 minutes), move the “Air/On” switch into
the upper position (green LED lights).
N O T E !
The maximum flow rate is 3Nl/min !