12
TRBH
SYSTEM
TRBH SYSTEM CONFIGURATION SELECTION
The customised configuration of the ventilation system provides for the possibility of programming, by means of the
NT935BH temperature control unit, the number of bars connected (B1 - B2) and the number of fans on the single bar. The
following configurations BARS - FANS can be selected:
1)
B1-M1
/1 bar (B1) 1 fan (M1) connected
HOT speed regulation reference channel (the hottest channel of CH1-CH2-CH3)
2)
B1-M2
/1 bar (B1) 2 fans connected (M1-M2)
Reference channel for HOT speed regulation (the hottest channel of CH1-CH2-CH3)
3)
B1-M3
/1 bar (B1) 3 fans connected (M1-M2-M3)
Single speed regulation reference channel CH1 (M1) CH2 (M2) CH3 (M3)
4)
B2-M1
/2 bars (B1-B2) 2 fans connected (M1-M6)
Reference channel for HOT speed regulation (the hottest channel of CH1-CH2-CH3)
5)
B2-M2
/2 bars (B1-B2) 4 connected fans (M1-M2-M5-M6)
Reference channel for HOT speed regulation (the hottest channel of CH1-CH2-CH3)
6)
B2-M3
/2 bars (B1-B2) 6 fans connected (M1-M2-M3-M4-M5-M6)
Reference channel for single speed regulation CH1 (M1-M6) CH2 (M2-M5) CH3 (M3-M6)
NOTE: the fan speed adjustment (rpm), with sections other than B1-M3 and B2-M3, is managed with HOT reference
channel or the hottest channel of CH1-CH2-CH3.
In order to avoid malfunction signals, it is advisable to make the TRBH system connections respecting the selected
configuration, see control box - fans connections from page 15.
E.g.
B1-1 =
1 bar B1 (only control box B1) and 1 fan connected M1 (only fan M1 connected).
Make the connections between the control unit and box (B1) and between the box (B1) and the M1 fan.
ASSEMBLY NOTES
Fix the fans on the bar using the dedicated holes on the back. Do not modify the fan fixing holes.
During fan movement, avoid deforming the impeller fins. Never change the position of the motor.
If the fan/bar is mounted on a transformer the fan's working position must
respect the safety distance indicated in the manual of the transformer on which you are installing the fan. The fan must be
positioned in a horizontal plane; always check, with the help of a spirit level, that the fan is positioned correctly.
The maximum level of vibration permitted is 60Hz.
ENVIRONMENTAL CONDITIONS OF USE
Absence of fine dust.
Absence of flammable or corrosive gases.
Relative humidity: 90% non-condensing (for short periods).
NB: maximum temperature as prescribed by the IEC 60076-11 standard.
Avoid installing it in a marine environment, except after specific treatment of the metal parts.
NOTE: failure to comply with the assembly notes and any use in critical environmental conditions
such as: long periods of standstill, high humidity, high temperatures, excessive dust and excessive vibration,
can hasten deterioration of the mechanical parts of the fans.
MAINTENANCE
In order to maintain the efficiency of the fans, periodically perform (every 6 months) a cleaning intervention on them, using
only compressed air. Do not use lubricants or greases of any kind.
Prolonged shutdown of the fan could be the cause of faults. The installation of the fans combined with the Tecsystem
thermometric control units avoids any prolonged stops. Enabling the HFN function present in the Tecsystem control units
it is possible to program activation cycles of the fans from 1 to 200 hours, recommended setting every 24 hours (for further
information on the HFN function, check the manual of the control unit purchased).
NOTE: Periodic maintenance and activation of the HFN will contribute to extending the efficiency of the fans.
Maintenance work on the fans must be programmed according to the environmental conditions in which they
operate.