Toxalert GVU-18 User Manual

TM

DATA

TOXALERT

SHEET

CO / CO2 / NO2 / OR VOC MONITOR MODEL GVU-6
VEHICLE EXHAUST GAS DETECTOR MODEL GVU-12

MODEL GVU-18

TYPICAL INSTALLATIONS:

• Parking Garages • Vehicle Maintenance & Storage
Apartments Highway Departments
Condominiums Utilities
Office Buildings Public Works

• Bus Garages • Police Stations

• Fire Stations • Post Offices

• Warehouses • Ice Arenas

• Car Dealers • Tunnels

• Welding Shops

GENERAL DESCRIPTION:

The GVU-6,12 and 18 ventilation control systems combine toxic gas-based and time-based fan control modes in
all solid-state, low maintenance, cost effective product.

The GVU-6 series controller can monitor up to six (6) GVU-CO sensors; six
(6) GVU-CO
or any combination of these. The GVU-6 Controller consists of the power
supply , solid state clocks, time delays, fan control, terminal strips, and power
on indicator.

The GVU-12 series controller can monitor up to twelve (12) GVU-CO
sensors; twelve (12) GVU-CO
twelve (12) GVU-VOC sensors; or any combination of these. The GVU-12
Controller consists of the power supply, solid state clocks, time delays, fan
control, terminal strips, and power on indicator.

The GVU-18 series controller can monitor up to eighteen (18) GVU-CO
sensors; eighteen (18) GVU-CO
eighteen (18) GVU-VOC sensors; or any combination of these. The GVU­18 Controller consists of the power supply, solid state clocks, time delays,
fan control, terminal strips, and power on indicator.

The GVU-CO sensor is microprocessor based and is temperature and humidity
compensated for stability. The GVU-CO sensor range is 0 to 250 ppm. The
transducer utilizes a tinoxide sensing element that is cleaned and sampled by
the microprocessor. The GVU-CO indicates its status via a two color LED
(light emitting diode). When the LED is flashing green, operation is normal
and not in alarm. When the LED is flashing red, the unit is in alarm (high CO);
a continuous red or green indicates sensor failure; and LED extinguished
indicates power failure.

sensors, six (6) GVU-NO2 sensors, six (6) GVU-VOC sensors;

2

sensors, twelve (12) GVU-NO2 sensors,

2

sensors, eighteen (18) GVU-NO2 sensors,

2

Model GVU-6

See separate specification data sheet for information regarding GVU-CO
nitrogen dioxide sensor and GVU-VOC smoke/air quality sensor. See last page for ordering information.

TOXALERT INTERNATIONAL, INC., P.O. BOX 159, MOUND, MINNESOTA 55364 [phone] FAX [phone]

Visit our website at www. toxalert. com

carbon dioxide sensors, GVU-NO

2

2

FEATURES

• Fully electronic for long life

• User adjustable alarm setting

• Minimum fan run time

• User adjustable 2nd stage activation

• Trouble Free Operation

• Visual indication of high gas concentration

• Operating range meets OSHA std. 1910.1000

VENTILATION CONTROL

Should a high gas concentration occur (above user-adjustable alarm level), an alarm signal from any
sensor unit starts a 30 second delay. Should the concentration persist through the delay period, the
“alarm” clock is activated. The “on” time of this clock, is user-adjustable in discrete settings from 5 to 55
minutes. Upon activation of the “alarm” clock, the “fan-on” relay energizes and remains energized until
the “alarm” clock” times out. Should the high concentration still be above the alarm level, the “fan-on”
relay will remain ON and the “alarm” relay will energize. This condition is maintained until the high
concentration drops.

OPTIONS:

• Audible alarm w/push button audio silence • Sensor status indicators per sensor

• Fan on indicator • Second zone of fan control

• Fan override switch • 7-day time clock

SPECIFICATIONS

Input Power: 120VAC, 60Hz, 1 A (fused) Relay Contacts: 24 VAC, 2A resistive, 1.5 inductive
Minimum Fan On Time: Adjustable in 5 minute Finish: Control Unit: Gray enamel
intervals Enclosure: Nema 1 standard, others available
Dimensions:

GVU-6 20”H x 12”W x 6” D

(508 mm x 305 mm x 152.4 mm)

GVU-12 20”H x 20”W x 6” D

(508 mm x 508 mm x 152.4 mm)

GVU-18 20”H x 24”W x 6” D

(508 mm x 609 mm x 152.4 mm)

GVU SERIES PRODUCTS:

CONTROLLERS –

GVU-1 Control unit for use with one sensor
GVU-3 Control unit for use with one to three remote sensors
GVU-6 Control unit for use with one to six remote sensors
GVU-12 Control unit for use with one to twelve remote sensors
GVU-18 Control unit for use with one to eighteen remote sensors

REMOTE SENSORS –

GVU-CO Remote carbon monoxide sensor GVU-NO
GVU-CO

Remote carbon dioxide sensor GVU-VOC Remote smoke/air quality sensor

2

ANNUAL CALIBRATION CHECK IS RECOMMENDED

Remote nitrogen dioxide sensor

2

MODEL GVU-6, 12, 18 1/06

TOXALERT INTERNATIONAL, INC., P.O. BOX 159, MOUND, MINNESOTA 55364 [phone] FAX [phone]

Visit our website at www. toxalert. com