37
CONTROL BOX FOR LFL 1...
SERIES 02 GAS BURNERS
N°
7
451
Rev. 10/1997
Control box for burners of average and high power, with forced draught, intermittent service (*), 1 or 2 stages,
or modulating types, with supervision of the air pressure for controlling the air damper.
This control box bears the EC mark, in accordance with the Gas and Electromagnetic Compatibility Directive.
* For reasons of safety, it is necessary to make at least one controlled stop every 24 hours!
As regards the standards
The following LFL1… features exceed the standards, offering a high level of additional safety:
- The flame detector test and false flame test start immediately after the tolerated post-combustion time. If the
valves remain open, or do not close completely after adjustment stops, a lock-out stop is triggered at the end of the
tolerated post-combustion period. The tests will end only at the end of the pre-ventilation time of the next start-up.
- The validity of working of the flame control circuit is checked each time the burner starts up.
- The fuel valve control contacts are checked for wear during the post-ventilation time.
- A built-in fuse in the appliance protects the control contacts from any overloads that may occur.
As regards the burner control
- The equipment allows operation with or without post-ventilation.
- Controlled activation of the air damper to ensure pre-ventilation with nominal airflows. Positions checked: CLOSED
or MIN (position of ignition flame on start-up); OPEN at the beginning and MIN at the end of the pre-ventilation time.
If the servomotor does not position the air damper at the points described, the burner does not start-up.
- Ionization current minimum value = 6mA
- UV cell current minimum value = 70mA
- Phase and neutral must not be inverted.
- Any place may be used for installation and assembly (IP40 protection).
Содержание TS 0 GN
Страница 2: ......
Страница 47: ......
Страница 48: ......
Страница 49: ......
Страница 50: ......
Страница 51: ......
Страница 52: ......
Страница 53: ......
Страница 54: ......
Страница 55: ......
Страница 56: ......
Страница 57: ......
Страница 58: ......
Страница 59: ......
Страница 60: ......
Страница 61: ......
Страница 62: ......
Страница 63: ......
Страница 64: ......
Страница 65: ......
Страница 66: ......
Страница 67: ......
Страница 68: ......
Страница 69: ......
Страница 70: ......
Страница 71: ......
Страница 72: ......
Страница 73: ......
Страница 74: ......
Страница 75: ......
Страница 76: ......
Страница 77: ......
Страница 78: ......
Страница 79: ......
Страница 80: ......
Страница 81: ......
Страница 82: ......
Страница 83: ......
Страница 84: ......
Страница 85: ......
Страница 86: ......
Страница 87: ......
Страница 88: ......
Страница 89: ......
Страница 90: ......
Страница 91: ......
Страница 92: ......
Страница 93: ......
Страница 94: ......
Страница 95: ......