CO Alarm Activated

[gassafe]

I used to work for a company who built and installed direct fired warm air heaters, and in an open area (warehouse) the limit was 280ppm.

Few headaches in the warehouse then :/

 

[JAH HEATING]

You can't touch it if you haven't got your cmdda1.

You need a Kane 457 to measure ambient air, 455s don't do this.

If you come across with any alarms going off, cap off an ring supplier. Don't do anything else

 

[JAH HEATING]

You have done the right thing, but it sounds like someone needs to get to the bottom of it ASAP. The CO must be coming from somewhere and it cant be from an appliance in the property you were in if the gas was capped when you tested it.

You check for ingress coming from adjacent properties.

 

[newcastle phill]

Read somewhere allowed upto 10ppm over an 8 hour period by the WHO.

Personally didnt realise Paul Weller did gas

 

[Aquazone]

ESP do have engineers who have CMDDA1 as I went round to a job my mate was on. Exactly same as yours, CO alarm activated, capped off, he went round checked boiler, hob and gas fire.

All working perfectly. He had about 100ppm CO near the front of the house, no appliances running.

He then went outside to recalibrate FGA and the CO went up to 200ppm. Went down the street, dropped to nothing, recalibrate again, went back and 200ppm almost outside the house. No flues on houses at front, no busy road, just a normal street.

Called ESP and after a bit of to and fro, got the right chap out who also involved Enviromental Health who relocated my mates customer and the people either side.

His initial feeling was it was something in the drainage/sewage underground or a gas build up but said it would need digging to investigate. I never did find out what it was in the end, sorry!

 

[bewsh]

I thought they would have had some one who would deal with CO - but the guy was convinced they didn't. He even spoke to his boss about it, and he confirmed that it's nothing to do with them.

I've got a mate who works for BG and I know they have a team which do CO investigations, so I recommended the customer to get in touch with them and get them out to investigate properly.

 

[Pssst]

National Grid (not Transco) ,do not engage in CMDDA1 activities and do not have it on their registration cards.

NG Engineers are equipped with an atmospheric monitor which is calibrated to measure CH4/O2/CO. It is not intended for use to test appliances but to trace gas escapes and monitor the air for CO and O2 deficiency.

The procedure they practice for verified FULL alarm conditions is the take actions to preserve life, the isolate the supply in the affected property and if necessary, isolate the supply in neighbouring connected properties i.e adjoining semi or terrace(s).

It is then for the owners of those properties to engage a GSR who has the necessary ticket endorsements to check those appliances/installations.

CO alarms are a nightmare as they can false trigger/battery fail/whatever.. If a punter calls with a full alarm, they will get cut off, rain/shine or snow.

 

[kirkgas]

It is perfectly acceptable to visit a property after co activation with core and appliances, CMDDA1 is not needed for this visit
First question on the door step "any co symptoms"? If yes cap gas, ventilate and send them for co test, if they confirm co then it's an investigation, CMDDA1 isn't enough to investigate confirmed co
If they come back with no co or say no symptoms on the door step then core and appliances is enough to check trace and deal with faulty appliance, if co is found but cannot be traced it goes to cmdda1 for investigation

 

[Billy Bob Bob]

Visited a fire for BFM in warranty today,BG turned off through signs of spillage,burner picture not right etc,changed the burner and injector and Gas Rated it ,sorted flame picture ,passed spillage,but i noted condensate was forming on the top of the back panel,so put my fga there and got 25 ppm,isolated and kicked it back to the installer,looked like poor sealing around the plate,no gas iso on appliance and air relief cut to suit gas pipe

 

[stani]

Kirkgas, is it just any engineer then with cmdda1, that can do the investigation, he doesn't necessarily need to work for BG, NG etc, I.e. A small firm with an engineer with relevant can do the investigation