According to ASHRAE 90.1 (section 6.4.3.3.4), all HVAC systems serving zones that are intended to operate or be occupied non simultaneously, shall be divided into isolation areas and equipped with devices and controls to guarantee automatic isolation.
Are hotel rooms considered zones that are intended to operate or be occupied non simultaneously? Is it necessary to foreseen automatic isolation devices to each room? Can you please clarify how does this requirement applies to hotels?
Regards,
Pedro
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
May 12, 2015 - 9:40 am
I don't think it does apply. Hotels usually have a system per room and there are not multiple zones on one system. This section is about installing isolation dampers for areas that operate differently than the other areas on a particular system.
Ricardo Sá
Director of SustainabilityEdifícios Saudáveis Consultores (503 910 767)
85 thumbs up
May 12, 2015 - 11:03 am
Once again, thanks for your quick reply.
Here in Europe, temperature control in typical hotel rooms is guaranteed by a fan-coil that can be isolated from the rest of the HVAC system (water valve) but ventilated by an AHU that serves several rooms (up to 100 or more). The question relates with ventilation: is it necessary to foreseen automatic isolation (air dampers) in each room or group of rooms?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
May 12, 2015 - 11:21 am
If they are connected then I think the answer is yes.