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Will_D
Hi Guys,
I am with Malahide Rugby Club in Dublin and need some advice ( naturally free as we can't afford to pay for anything at the moment )
My question is:
Has anyone Installed/Comissioned/Maintained a HeatMaster ACV HM 100G water heater.
Its a large, red, gas fired boiler and at present it is on 24/7 so our gas bill is huge ( as we have a large, long HW flow/return circuit to the showers and the toilets ). It only does HW our central heating is on a separate LP system and its off - coz' its summer - allegedly!
We have a problem in that: If the boiler is switched off for a period of time (12 hrs) it looses pressure in the primary circuit so the boiler will not re-start as the primary circuit under presure safety has locked out the gas burner.
The secondary HW system is boosted to 2.5 bar by pumps.
When the system is cold and first switched on the amount of gurgling is unbelievable so this leads me to the conclusion that there is air in the primary circuit. BUT the auto-air-bleed valve isn't working! Even though I've removed it and tested it and it seems fine!. Its just that as I understand the diagrams there is a closed loop, pumped primary circuit that has a top feed and thats it!
Surely there should be botton feed to the loop and an air bleed at the top - just like a domestic rad.
I have the manual and venting the primary circuit is not exactly understandable or logical.
According to the manual all the pipe wotk is correct
Many thanks
Will Davis
MRFC
Ps: Best pint of Guiness in Dublin and its free for plumbers!!
I am with Malahide Rugby Club in Dublin and need some advice ( naturally free as we can't afford to pay for anything at the moment )
My question is:
Has anyone Installed/Comissioned/Maintained a HeatMaster ACV HM 100G water heater.
Its a large, red, gas fired boiler and at present it is on 24/7 so our gas bill is huge ( as we have a large, long HW flow/return circuit to the showers and the toilets ). It only does HW our central heating is on a separate LP system and its off - coz' its summer - allegedly!
We have a problem in that: If the boiler is switched off for a period of time (12 hrs) it looses pressure in the primary circuit so the boiler will not re-start as the primary circuit under presure safety has locked out the gas burner.
The secondary HW system is boosted to 2.5 bar by pumps.
When the system is cold and first switched on the amount of gurgling is unbelievable so this leads me to the conclusion that there is air in the primary circuit. BUT the auto-air-bleed valve isn't working! Even though I've removed it and tested it and it seems fine!. Its just that as I understand the diagrams there is a closed loop, pumped primary circuit that has a top feed and thats it!
Surely there should be botton feed to the loop and an air bleed at the top - just like a domestic rad.
I have the manual and venting the primary circuit is not exactly understandable or logical.
According to the manual all the pipe wotk is correct
Many thanks
Will Davis
MRFC
Ps: Best pint of Guiness in Dublin and its free for plumbers!!
