Brasch GSE Generation 2 Bedienungsanleitung
GSE Generation 2
Quick Start Guide
Brasch Environmental Technologies, LLC
140 Long oad, Suite 101
Chesterfield, Missouri 63005
314-291-0440
www.braschenvtech.com
Quick Start Guide
Please read the entire manual before attempting to install and operate this gas detector. This
guide is only intended to provide the basic steps necessary for installation and operation.
Each step will reference the portion of the manual where more complete information can be
obtained.
Step 1 – Mounting
Determine the location for mounting your detector(s). The location(s) may be indicated on the
architectural drawing. Also, the owner or designer of the facility may be consulted. Mounting
guidelines can be found on page 14 of the manual.
Step 2 – Input Wiring
Provide a dedicated circuit with the required operating voltage at each detector mounting
location. Follow all national and local wiring codes. The wiring should be at least 14 AWG. A
conductor connected to earth ground should also be provided. The circuit must include a
disconnect switch located within easy reach of the detector.
If the detector operates from a voltage other than 120 VAC, ensure that the step-down
transformer provides the correct secondary voltage and has the necessary volt-amp rating.
The power requirement for the detector is listed on the front-panel label.
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ev 1.0 – December 22, 2020 2
WARNING
This detector may require the use of voltage levels high enough to cause fatal injuries.
Proper procedures must be followed any time work is performed on this unit.
Only qualified personnel should attempt to install, maintain, or service this equipment.
CAUTION
Operating this detector with the incorrect voltage and power requirements can cause internal
electrical components to overheat and fail. Operation with the wrong power requirement will
void the manufacturer’s warranty and the installer will be responsible for any damage that
occurs.
Contact Brasch Environmental Technologies, LLC before connecting power to the detector if
you are unsure of the correct power requirement.
Color-coded wires exiting the detector housing through the top, right conduit connector are
provided for connecting the operating voltage to the detector. Therefore, it should not be
necessary to open the cover on the detector when connecting the voltage supply. Connect the
hot power conductor to the black wire, the neutral conductor to the white wire, and the ground
conductor to the green wire (if present).
efer to page 15 of the manual for more information.
Step 3 – Remote Transmitter Wiring
If remote transmitters are a part of this detector, the detector will supply the operating power to
each transmitter. Use a five-conductor shielded cable with color-coded conductors of at least
18 AWG to connect the power. Three of these connectors provide the positive voltage,
negative voltage, and reference common to the transmitter for power. The remaining
conductors carry the signal from the transmitter to the controller. See figure 10 on page 43
and figure 11 on page 44 of the manual for details. If possible, choose a cable with color-
coded conductors that follow the suggested color scheme listed on the drawings.
The transmitter will be shipped with a cable containing five color-coded wires exiting the top of
the housing through a conduit fitting. This cable is labeled “Transmitters” to differentiate the
wiring connections from the relay wiring. If you have chosen color-coded conductors that
match the wire colors, connect the cable conductors to the wires of the same color. If your
cable conductors do not match the wire colors, assign a cable conductor color to each wire
and make a list of this assignment. Follow this color assignment when connecting any other
transmitters in the system. All transmitters share the same conductors back to the controller.
Therefore, a five-conductor cable can be connected from transmitter to transmitter, or from
transmitter to controller, as the situation dictates. Follow the wiring diagrams on page 43 and
44 of the manual to determine the proper connections at the controller.
SG02
ev 1.0 – December 22, 2020 3
CAUTION
It is very important that the power and signal connections between each transmitter and
between the transmitters and the Brasch controller be correct. If the connections are wired
incorrectly, damage to both the transmitters and the controller will occur.
Use a cable with color-coded conductors and make sure that the same conductor connects
to the same terminal on each transmitter and the controller.
Do not apply power to the transmitter or controller unless you are sure that the connections
are correct.
Step 4 – Relay Wiring
In most cases, wiring of the ventilation control relays can be completed without opening the
front panel of the detector. Color-coded wires connected to the internal relay terminals extend
outside the housing through the conduit connector located at the top, left of the unit. Use only
the necessary wires required for control of the ventilation components. Cover or seal the ends
of any unused wires and place them safely inside the conduit or electrical box.
Determine the type and number of fans and or make-up air units the detector will control. For
proper installation, you must first determine how and when the fans/make-up air units will
operate. Many installations have only one or two ventilation components designed to operate
simultaneously. These components usually operate from the A1 terminals of the Low Alert
relay. Other ventilation systems contain multiple components designed to operate in two
stages. Connect the primary ventilation components to the A1 terminals of the Low Alert relay
using the yellow wires and the secondary components to the A2 terminals of the High Alert
relay using the brown wires. When using multiple zones, follow the same guidelines as above
using the red wires for A1 and blue wires for A2 of Zone 2.
Do not exceed the specified voltage and power limits of the relays (see page 6 of the manual).
Most installations require motor starters or larger relays to provide the necessary power
requirements for the ventilation components.
For more information concerning ventilation system operation, read page 17 of the manual.
Step – External Alarms
Determine if the installation requires an external alarm. If so, provide the proper wiring and
connect the wires to the required voltage source. Connect the wiring to the Alarm relay(s)
using the gray wires for Zone 1 and purple wires for Zone 2.
efer to page 18 in the manual for more information concerning the alarm feature.
Step 6 – Applying Power
Once you are sure that the wiring connections are correct, apply power to the detector circuit.
When power is first applied, the unit will begin a 150 second countdown on the display while
the indicator LEDs turn on and off in a circular pattern. This is the warm-up phase. Once the
timer reaches zero, the green Power LED will remain solid and the yellow LEDs will begin to
alternate according to how many zones and sensors are present.
See page 18 in the manual for more information concerning the initial startup.
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ev 1.0 – December 22, 2020 4
Step 7 – Self-Test Mode
This detector is equipped with a self-test mode that can be activated any time after warm-up by
pressing the “SELF TEST” button for approximately 1 second. This mode will test the display,
indicator LEDs, relays, and buzzer for proper operation. Any ventilation components
connected to these relay terminals will operate if their power supply is active. The ventilation
component relays will remain on for 30 seconds to allow sufficient time for testing if problems
occur. There is a 30 second period between each relay actuation. At the end of this test, the
buzzer will sound for 3 seconds and the detector will resume normal operation as described in
step 6.
Page 19 in the manual contains a more complete discussion of this self-test mode.
At this point, the detector is now ready to monitor for the presence of the target gas(es) and
control the ventilation system to efficiently remove the gas from the protected area.
SG02
ev 1.0 – December 22, 2020 5
evision: 1.0
Issue Date: December 22, 2020
Document Number: SG02
© Brasch Environmental Technologies, LLC
All ights eserved
Technical Support Contact Information
Phone: 314-291-0440 ext. 1006
Fax: 314-291-0646
Email: [email protected]
Website: www.braschenvtech.com/support-for-existing-systems
General Contact Information
Phone: 314-291-0440
Fax: 314-291-0646
Email: [email protected]
Website: www.braschenvtech.com
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