We are busy assessing whether or not the "Public lavatories have outlet temperature controls that limit the discharge temperature to 110°F" ASHRAE 90.1 Mandatory requirement. ASHRAE 90.1 defines 'public restrooms' as 'used by the transient public'. If we have an office building with access control to get into the office, and then open plan office space with common restrooms for staff and guests who are signed in, would that be defined as public? Some transient visitors will use it but predominantly it will be by permanent staff.
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
September 14, 2015 - 9:22 am
Do you wish to supply at a higher temperature?
André Harms
Ecolution Consulting1 thumbs up
September 14, 2015 - 9:54 am
Yes essentially. The design team was under the impression that the tap fittings installed would be capable of limiting the output temperature. It has surfaced now that this is not the case. So we are trying to assess whether it is worth finding some other solution to limit it because currently it can go as high as 130 degrees F if turned all the way to hot.
André Harms
Ecolution Consulting1 thumbs up
October 1, 2015 - 12:08 pm
Hi Marcus
Any feedback here would be appreciated. Thanks.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
October 1, 2015 - 12:17 pm
Sorry I thought I already did, it must not have recorded in the forum.
Sounds to me like you will need to meet this mandatory provision and install mixing valves or lower the temperature at the source.