Hi
I am not sure if I have an issue or not but would like some help, 1st the history
I had a new heating system installed this summer in to a 5 bedroom 3 bathroom house:
• Valiant Eco Tec 637
• 22 New Radiators (Stelrad)
• Un vented hot water system (Glow Worm cylinder)
The pipe work was also upgraded as it was 8mm microbore so house was zoned upstairs/downstairs/hot water, with 22m from the boiler for each zone down to 15mm for the rads. All rads have TRV’s Drayton TRV4’s fitted except for the two upstairs and downstairs hallways near the room stats.
The radiators were specified by myself and the 1st engineer I wanted to do the job, he agreed the size of each rad based upon the room size and the value of all rads came to 22KW, a 37KW boiler was selected to allow for the hot water system and some scope for future expansion. I purchased all the radiators (I was quite happy to install all the radiators and he was happy to just connect to were I had installed but we had to agree that they were the correct size)
Anyway the 1st engineer let me down, don’t know why but it wasn’t just me he let down, so I found a 2nd engineer. Again he was happy for me to install all rads and he would just connect. When he installed all the new pipes
Everything appears to working fine and the house is so much hotter than it was last year where the old system was on 24 hours a day 7 days a week over the really cold period. The old boiler was over 30 years old, leaking and had not been upsized when the house was extended so had to go.
Anyway being new to Condensing boilers and having read this thread I wonder if 637 should be cycling as it does, this is what happens :
• The boiler starts, the pump starts and the gas burner symbol comes on until the temperature reaches 75. This normally takes around 1 mintue15 seconds
• The gas symbol burner then goes out and the pump continue to run until the temperate drops to 49 which normally takes around 3 minutes 15 seconds
• The pump then switches of for around 10 seconds
• The pump then switches back on for around 10 seconds until the burner starts and the cycle starts again
Is this correct for a condensing boiler ? or am I damaging the boiler or not operating it efficiently
I have spoken to the Engineer who installed the boiler and he has told me to keep an eye on it (not sure what that is going to do) his statement is that as I specified the radiators so are they the rights size for the rooms. They were according to the 1st engineer and with all the information I have found. So he hasn’t washed his hands of this entirely but doesn’t seem keen to come back and check it out. So I want to understand if the boiler should be operating like this or I need to push the point
Thanks
I am not sure if I have an issue or not but would like some help, 1st the history
I had a new heating system installed this summer in to a 5 bedroom 3 bathroom house:
• Valiant Eco Tec 637
• 22 New Radiators (Stelrad)
• Un vented hot water system (Glow Worm cylinder)
The pipe work was also upgraded as it was 8mm microbore so house was zoned upstairs/downstairs/hot water, with 22m from the boiler for each zone down to 15mm for the rads. All rads have TRV’s Drayton TRV4’s fitted except for the two upstairs and downstairs hallways near the room stats.
The radiators were specified by myself and the 1st engineer I wanted to do the job, he agreed the size of each rad based upon the room size and the value of all rads came to 22KW, a 37KW boiler was selected to allow for the hot water system and some scope for future expansion. I purchased all the radiators (I was quite happy to install all the radiators and he was happy to just connect to were I had installed but we had to agree that they were the correct size)
Anyway the 1st engineer let me down, don’t know why but it wasn’t just me he let down, so I found a 2nd engineer. Again he was happy for me to install all rads and he would just connect. When he installed all the new pipes
Everything appears to working fine and the house is so much hotter than it was last year where the old system was on 24 hours a day 7 days a week over the really cold period. The old boiler was over 30 years old, leaking and had not been upsized when the house was extended so had to go.
Anyway being new to Condensing boilers and having read this thread I wonder if 637 should be cycling as it does, this is what happens :
• The boiler starts, the pump starts and the gas burner symbol comes on until the temperature reaches 75. This normally takes around 1 mintue15 seconds
• The gas symbol burner then goes out and the pump continue to run until the temperate drops to 49 which normally takes around 3 minutes 15 seconds
• The pump then switches of for around 10 seconds
• The pump then switches back on for around 10 seconds until the burner starts and the cycle starts again
Is this correct for a condensing boiler ? or am I damaging the boiler or not operating it efficiently
I have spoken to the Engineer who installed the boiler and he has told me to keep an eye on it (not sure what that is going to do) his statement is that as I specified the radiators so are they the rights size for the rooms. They were according to the 1st engineer and with all the information I have found. So he hasn’t washed his hands of this entirely but doesn’t seem keen to come back and check it out. So I want to understand if the boiler should be operating like this or I need to push the point
Thanks