Hi,
Potterton Boiler in the garage. Open Vented I belive. [Loft has Expansion & Feed Cistern]. Above the boiler a pump connected to the return pipe.
Electricity supply to the boiler & its associated equipment is in complete isolation in the corridor. Fig 1.
In kitchen a Honeywell Timer. Timer has two choices- "Heating & Hot Water " or "Hot Water" See Fig 2.
In the hallway situated a Room Thermostat. See Fig 3.
Upstairs has hot water cylinder in the Airing cupboard. Just above the airing cupboard in the loft two cisterns-one the Feed cistern feed cold water by gravity into the hot water cylinder. Next to it in the loft situated the expansion cistern.
When ever the water alone is selected for heating, the radiator in the bathroom get heated too but not other house radiators. This bath room radiator is connected to the hot-water tank in the airing cupboard.
My question is
1. Is this system has S or Y plan?
2. When hot-water tank is heated alone by selecting a choice in the Honeywell control in the kitchen,[without the "central & water heating"] how does this happen? A valve bring about this control I suppose.
If it is a vale where would that valve be situated?
Is a valve mechanical one or electrically operated zone valves?
Potterton Boiler in the garage. Open Vented I belive. [Loft has Expansion & Feed Cistern]. Above the boiler a pump connected to the return pipe.
Electricity supply to the boiler & its associated equipment is in complete isolation in the corridor. Fig 1.
In kitchen a Honeywell Timer. Timer has two choices- "Heating & Hot Water " or "Hot Water" See Fig 2.
In the hallway situated a Room Thermostat. See Fig 3.
Upstairs has hot water cylinder in the Airing cupboard. Just above the airing cupboard in the loft two cisterns-one the Feed cistern feed cold water by gravity into the hot water cylinder. Next to it in the loft situated the expansion cistern.
When ever the water alone is selected for heating, the radiator in the bathroom get heated too but not other house radiators. This bath room radiator is connected to the hot-water tank in the airing cupboard.
My question is
1. Is this system has S or Y plan?
2. When hot-water tank is heated alone by selecting a choice in the Honeywell control in the kitchen,[without the "central & water heating"] how does this happen? A valve bring about this control I suppose.
If it is a vale where would that valve be situated?
Is a valve mechanical one or electrically operated zone valves?