5
Changing the radio key
If your Visit system is activated for no reason, there is probably a nearby system that triggers
yours. In order to avoid radio interference you need to change the radio key on all units. The
radio key switches are located on the back of the CO alarm, under the mounting bracket
Here is how you change the radio key:
1
Remove the CO alarm from the bracket and move any of the radio
key switches 1 – 6 to the up = on position to change the radio key.
2
Press and hold the test/function button on the receiver until the
green and yellow Visit LEDs blink alternately. Release the button.
3
Press the test/hush button on the CO alarm until the alarm sounds to send the new radio key.
4
All Visit LEDs on the receiver blink 5 times to show that the radio key has been changed.
It then returns to normal mode.
Note:
All Visit units must be set to the same radio key in order to operate as a group. If
broadcast mode is activated, all Visit receivers will respond regardless of the radio key settings.
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6
Carbon monoxide – the silent killer
What is carbon monoxide?
Many people are killed each year, and many more suffer ill health from Carbon Monoxide (CO)
poisoning. CO is an invisible, odorless, tasteless and extremely toxic gas. It is produced by
appliances and vehicles burning fuels, such as coal, oil, natural gas, propane, kerosene, paraffin,
wood, gasoline, diesel, charcoal etc. CO is absorbed by red blood cells in the lungs in prefer-
ence to oxygen – this results in rapid damage to the heart and brain from oxygen starvation.
High levels of CO in a house can be caused by:
Incorrectly or poorly installed fuel-burning appliances.
Blocked or cracked chimneys/flues.
Blocked vents or draught-proofing which makes areas with fuel burning appliances or
fireplaces airtight.
Engines of cars, lawnmowers etc. left running in confined spaces.
Portable kerosene or propane heaters in poorly ventilated rooms.
What happens when your CO alarm detects carbon monoxide?
When the CO alarm detects potentially dangerous levels of CO, it blinks the red alarm LED
immediately and then sounds a loud alarm if the CO persists. The
Signal pattern
table on page
6 shows how the CO alarm reacts to different levels of CO gas and exposure time. At higher
levels of CO, the alarm turns on sooner. The rate of blinking of the red LED indicates the level of
CO. If your CO alarm sounds, follow the instructions in the section
What to do when the alarm
sounds
on page 17.
NEVER IGNORE THE ALARM!
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