Greenstar question.

[Smartco]

Hello All.
I have a question about the DHW temperature setting of a Greenstar 30i ErP. It seems to be set for a maximum of 60C. A safety measure, I know, but is there any way to set it higher? 65 or 70, like the good old days.
The service manual implies not, but perhaps there is a secret menu??

 

[ShaunCorbs]

Nope may I ask why you need it hotter than 60dc as these days most things reduce the temp eg showers etc

 

[Smartco]

Nope may I ask why you need it hotter than 60dc as these days most things reduce the temp eg showers etc

For shaving.

 

[Scott_D]

What temp are you getting at the basin?
Reduce the flow to increase temp

 

[Smartco]

What temp are you getting at the basin?
Reduce the flow to increase temp

My question is very specific. The boiler is programmed for a max temperature of 60C. Can this be changed? By a proper engineer, if necessary, but can it be done?

 

[Brambles]

The DHW max temperature is limited to 60 degrees across the range of Worcester Combis. It is controlled through the PCB, so it can be adjusted ( by remapping the chip with an Eprom reader / writer ) - but not by any of the user or service engineer access levels published by Worcester.

DHW temperature is a User safety critical issue, it is unlikely that there is an easy work around to increase it, without reprogramming the chip.

The above is the theory, even if reprogrammed to say 70 degrees the secondary heat exchanger would require a high cold inflow temperature to deliver that (70 degrees C) at a decent flow rate.

If you want DHW at a higher temperature than 60 degrees C the easiest way is through a vented or unvented cylinder.

 

[ShaunCorbs]

The DHW max temperature is limited to 60 degrees across the range of Worcester Combis. It is controlled through the PCB, so it can be adjusted ( by remapping the chip with an Eprom reader / writer ) - but not by any of the user or service engineer access levels published by Worcester.

DHW temperature is a User safety critical issue, it is unlikely that there is an easy work around to increase it, without reprogramming the chip.

The above is the theory, even if reprogrammed to say 70 degrees the secondary heat exchanger would require a high cold inflow temperature to deliver that (70 degrees C) at a decent flow rate.

If you want DHW at a higher temperature than 60 degrees C the easiest way is through a vented or unvented cylinder.

or even easier as it’s for shaving a kettle

 

[Brambles]

The highest adjustable settings on a Combi that I have seen for DHW are some Vallaint models that go to 65 degrees.

Alternatively a boiling water tap?

 

[Smartco]

The DHW max temperature is limited to 60 degrees across the range of Worcester Combis. It is controlled through the PCB, so it can be adjusted ( by remapping the chip with an Eprom reader / writer ) - but not by any of the user or service engineer access levels published by Worcester.

DHW temperature is a User safety critical issue, it is unlikely that there is an easy work around to increase it, without reprogramming the chip.

The above is the theory, even if reprogrammed to say 70 degrees the secondary heat exchanger would require a high cold inflow temperature to deliver that (70 degrees C) at a decent flow rate.

If you want DHW at a higher temperature than 60 degrees C the easiest way is through a vented or unvented cylinder.

Thanks Brambles.
I thought that might be the case. The op manual actually has a picture of 63C being set, but that is the deadly practice of a few months back. No doubt the next generation will be maxed at 55C.
Cheers.

 

[Scott_D]

My question is very specific. The boiler is programmed for a max temperature of 60C. Can this be changed? By a proper engineer, if necessary, but can it be done?

It was specific but I was asking if you are getting the maximum possible at the basin or are you just getting a 35degree temp increase.
By reducing the flow you can increase the temperature.