PT. Indira Dwi Mitra - Fabrikasi boiler dan thermal oil heater Indonesia

jual control burner LOA44

24 Mar

jual control burner LOA44

LOA24.171B27 – Oil burner control, 2-stage, t1=13s, TSA=10s, t3n=15…20s, AC220…240V

  • Ordering data
  • Product Information

Oil Burner Controls LOA2…
LOA3…
Oil burner controls for the supervision, startup and control of 1- or 2-stage forced
draft oil burners in intermittent operation.
Oil throughput of less than 30 kg/h.
The LOA2… / LOA3… and this Data Sheet are intended for use by OEMs which
integrate the oil burner controls in their products.
Use, features
The LOA… are used for the startup, supervision and control of 1- or 2-stage forced draft
oil burners in intermittent operation.
Yellow-burning flames are supervised with photoresistive detectors QRB…, blueburning
flames with blue-flame detectors QRC…
 Applications in accordance with EN 267: Automatic forced draft burners for liquid
fuels
 Type-tested and approved in accordance with DIN EN 230:1991
– Undervoltage detection
– Bridging contact for oil preheater (not with LOA28.173A27)
– Special versions including models for incinerator plants and flash-steam generators
– LOA36… with color display of flame intensity and operating

Installation notes
 Always run high-voltage ignition cables separately while observing the greatest
possible distance to the unit and to other cables
 Make absolutely certain that live and neutral conductors are correctly connected to
terminals 1 and 2 of the burner control
 Install switches, fuses, earthing, etc., in compliance with local regulations
 Ensure that the maximum permissible current load for the connecting terminals is
not exceeded (refer to Technical data)
 Do not feed external mains voltage to the control outputs of the burner control.
When testing the function of devices controlled by the burner control (fuel valves or
similar), the burner control must not be connected
 To disconnect the unit from the mains, a complete shut-down must be carried out
under overvoltage category III conditions in each pole
 Secure the earthing lug in the terminal base with a metric screw and a lockwasher
or similar
 Switches, fuses, earthing, etc., must be in compliance with local regulations;
primary fuse max. 10 A (fast)
 For safety reasons, feed the neutral conductor to the neutral distributor in the plugin
base, or to terminal 2. Connect the burner components (fan, ignition transformer
and fuel valves) to the neutral distributor as shown in the figure 7435a14. The
connection between the neutral conductor and terminal 2 is prewired in the terminal
base
Example
2 37 4 5
M
N
7435a14/0601
Z V1
V2
Key
Vx Fuel valve
M Fan motor
Z Ignition transformer
Correct wiring of neutral conductors!
Electrical connection of flame detectors
It is important to achieve practically disturbance- and loss-free signal transmission:
 Never run the detector cable together with other cables
– Line capacitance reduces the magnitude of the flame signal
– Use a separate cable
 Observe the permissible lengths of the detector cables, see Technical data and
Data Sheet / Flame detector QRB (N7714) and QRC (N7716).

Test adapter (must be ordered separately)
Test adapter KF8833
 For checking the functions of burner controls on the
burner
 With signal lamps for program indication
 With one pair of jacks for measuring the flame detector
current
Test adapter KF8840
 For checking the functions of burner controls on the
burner
 With signal lamps for program indication
 With on / off switch for simulating the flame signal
 With holes for checking the control voltages at the tabs of
the burner control
 With one pair of jacks for measuring the flame detector’s
resistance
Test adapter KF8885
 For checking the functions of burner controls on the
burner
 With switch for manual startup of burner
 With switch for simulating the oil preheater’s release
contact
 With 2 pairs of jacks for measuring the flame detector
current
Refer to Mounting Instructions B7986

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