Toxalert GVU-3 User Manual

Page 4

5. ALARM SETTING PROCEDURES

All sensors are factory calibrated for their specific setpoint.
Periodic calibration is required and performed at the sensor.
Please refer to the individual sensor instruction manual (sup-
plied with each sensor) and calibration instruction sheet
(supplied with calibration kits, available seperately).

6. CHECKOUT

1) Turn off power.

2) Disconnect alarm input wires from sensors at terminals A1,

B1 & C1 of GVU-3 board.

3) Set alarm timer (S5) to 2 minutes and hour timer (S4) to 1

minute.

4) Set power switch S1 to PWR On. Set OPR/RST switch S3

to RST and back to OPR, note time.

5) Check that the LED indicators CR3 and CR4 on GVU1

board are extinguished and that fans are off.

6) Set TST/OPR switch S2 to TST, check that the CR3 LED

indicator is ON. After 30 seconds check that CR4 and the
fans are on. Set S2 to OPR (CR3 off) and check that the
fans stop after running 2 minutes (CR4 off).

7) Set TST/OPR switch S2 to TST, check that when 2 1/2

minutes have elasped (this includes the delay), alarm
device activates and fans continue to run. If optional alarm
is not installed, connect an ohm-meter across TB1-6 and
TB 1-7 and check that contacts of relay K1 are closed
(continuity).

8) Set S2 to OPR. Check that fans stop and K1 de-energizers

(CR3 and CR4 off).

9) Check that 1 hour after step (2) was performed, fans start

(CR4 lights) run for 1 minute.

10) Check power switch S1 to off position, set alarm and hour

timers to desired setting.

11) To disable hour clock operation, position switch S3 to RST

position.

12) Reconnect sensor alarm input wires, to A1, B1 & C1.

13) Set power switch S1 to PWR ON, close and lock enclo-

sure cover. This completes the checkout and installation.

GVU-3 2/06 TMK

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

Remote nitrogen dioxide sensor

GVU-CO

Remote carbon dioxide sensor

GVU–VOC

Remote smoke/air quality sensor

TOXALERT INTERNATIONAL, INC.,

P.O. BOX 159, MOUND, MINNESOTA 55364 (952) 472-4541 FAX (952) 472-4960

Visit our website at www. toxalert. com