The reheat coil in the furnace does not operate using a set point manager. It operates to meet the zone sensible load as determined by the thermostat. If you want the reheat coil to be off, you will have to set the capacity to 0 or some small number. The heating coil in the furnace operates to meet the heating load and the reheat coil operates to meet the reheat load. This way you can separate the energy required for heating and reheating.
Two options. 1) make the availibility of the gas furnace coil schedule always-0 or 2) set a setpointmanager:singelzone on the exit of the heating coil with the setpoint limits from say 4 low and 15 high...this will make the furnace coil only heat up air to a max of 15 degC and the reheat coil will do the rest of the work.
On 17 November 2012 23:49, Ladan <ladan_joon@xxxxxxxxx> wrote:
Hi Everyone,
I have a question about controlling my electric reheat coil in AirTerminal:Constant Volume Air:Reheat.
I have a single zone office space, with DX cooling coil and gas furnace. To control humidity in the zone in early occupied hours of a summer day, I have set up a humidistat with max humidity ratio setpoint manager. The setpoint node is located on my cooling coil outlet.
When I look at my hourly results, I see that humidity is controlled in my zone, but the Reheat Coil electric consumption is zero; instead, the gas furnace is generating heat in those early occupied hours of summer days.
So, my question is how I should make the reheat coil work rather than the furnace?
Thank you very much for your help,
Ladan
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