C
chris1970
hi,
i've had some modifications to my central heating system in past 6 months and am experiencing some set up problems :
new boiler, new different spec. pump , trv's .
i have been commissioning it myself basically because the installers aren't interested,
i have noticed air collects and it was pumping over when the pump is set to fixed high speeds and the upstairs trv's set low or off.
i removed the downstairs trv's raised the expansion vent arm from 35cm to 60cm and have run cleaner through the system again which seems to have improved it.
I recently read online that the vent arm should be 45cm for average 2 storey house ?, is it safe to keep mine at 60cm or should i reduce it ?
i have also increased the water level in the tank an inch or two because i thought maybe the pump would perform better, is that a good idea ?
i'm just about to drain the system and refill with water and inhibitor (for the first time) and just wondering if i should put the F and E tank back to normal ?
thanks for looking and any advice welcome
i've had some modifications to my central heating system in past 6 months and am experiencing some set up problems :
new boiler, new different spec. pump , trv's .
i have been commissioning it myself basically because the installers aren't interested,
i have noticed air collects and it was pumping over when the pump is set to fixed high speeds and the upstairs trv's set low or off.
i removed the downstairs trv's raised the expansion vent arm from 35cm to 60cm and have run cleaner through the system again which seems to have improved it.
I recently read online that the vent arm should be 45cm for average 2 storey house ?, is it safe to keep mine at 60cm or should i reduce it ?
i have also increased the water level in the tank an inch or two because i thought maybe the pump would perform better, is that a good idea ?
i'm just about to drain the system and refill with water and inhibitor (for the first time) and just wondering if i should put the F and E tank back to normal ?
thanks for looking and any advice welcome