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connection to PoWer mainS
•
The unit is rated for connection to 120 V / 60 Hz power mains.
•
The unit must be connected to power mains using insulated electric conductors (cables, wires). The actual
wire cross section selection must be based on the maximum load current, maximum conductor temperature
depending in the wire type, insulation, length and installation method.
•
The external power input must be equipped with an automatic circuit breaker built into the stationary wiring
to open the electric circuit in case of overload or short-circuit. The circuit breaker installation place must provide
quick access for emergency shutdown of the unit. The trip current of the automatic circuit breaker QF must
exceed the maximum current consumption of the unit (refer to the technical data table). The recommended trip
current of the circuit breaker is the next current in the standard trip current row following the maximum current
of the connected unit. Automatic circuit breaker is not included in the delivery set.
Route the cables to the control unit through the sealed cabled glands in the unit.
All the electric connections must be performed in compliance with external wiring diagram and wired through the terminal block X1 in the control unit. Extra control units may
be optionally connected to the unit. Extra connected control units are not included in the delivery set and must be ordered separately. Extra connections are shown in dotted
lines in the wiring diagram.
Connection of the fire alarm panel (PK) contact
While connecting the fire alarm panel contact remove the jumper between the terminals 4 and 5. In this case
the connection relies on a normally closed dry contact. In case of fire the normally closed dry contact opens the
control circuit from the central fire alarm panel and cuts off power supply to the unit.
Connecting of the external control unit contact, such as RH/CO
(NO, C).
Connect the CO
sensor to the terminals 6 and 7. In this case connection relies on a normally open dry contact.
2
Once the contact is closed, the unit starts to run with the maximum speed.
The cable for connection of the control panel to the air handling unit must be of 4xAWG30 type and have the
maximum length 39
/
inch.
3
8
Connection of the fire alarm panel (PK) contact
While connecting the fire alarm panel contact remove the jumper between the terminals 4 and 5. In this case
the connection relies on a normally closed dry contact. In case of fire the normally closed dry contact opens the
control circuit from the central fire alarm panel and cuts off power supply to the unit.
The cable for connection of the control panel to the air handling unit must
match the following requirements:
Cable type
Telephone type
Shielded cable AWG24
174 N. 36th Street, Lafayette, IN 47905
www.blauberg.us
e-mail: info@blauberg.us
eXternal Wiring diagram For the unitS With S14 automation
eXternal Wiring diagram For the unitS With S17 and S18 automation
Distance to power supply source
max. 164 ft
max. 656 ft
+U Rx Tx GND C NO PK PK PE N
11 10 9 8 7 6 5 4 3 2 1
/VOC sensor
2
+U Rx Tx
PE N
GND C NO PK PK PE N
Control
panel
PE N
PE N
L NC NC GND R+ R- ~GND ~24
1 2 3 4 5 6 7 8 9 10
PE N
L NC NC ~24 ~GND R- R+ GND
~24
~GND
R-
QF
L
Control
panel
MUI_BUSA142EN-03
L
L
QF
L
R+
GND
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