Greenheck DOAS v8.1 Reference Manual page 19

Menu
T s
emperaTure eTpoinT
One of the setpoint screens appears when supply temp control, space reset, or
return reset is selected as the reset control mode.
Setpoint Selections:
Local – The space setpoint will be constant; set from screen (e.g. 72°F).
BMS – The BMS can directly control the space temperature setpoint (requires
BMS communication option).
T-Stat – The space setpoint will be adjustable from the space thermostat.
Reference Appendix: Space Thermostat Quick Start for additional information.
Deadband:
When space reset or return air reset is selected, the setpoint and deadband screen
appears. The deadband allows for separate cooling and heating setpoints.
u T
noccupied emperaTure
The unoccupied temperature reset and supply temperature setpoint operation
works the same as occupied when the unoccupied unit operation is selected as
Normal operation with unoccupied setpoints or Recirculation with unoccupied
setpoints.
When night setback cycle is selected, please see the sequence of operation for
Setpoint Control (Night Setback) section.
T r s
emperaTure eseT eTpoinTs
Cooling and heating supply setpoints screens only appear if outdoor reset, space
reset, or return air reset is selected. These screens allow the user to set the min
and max setpoint limits for cooling or heating operation. The controller will adjust
the supply temperature setpoint between the set limits depending on mode of
operation.
u h
noccupied ysTeresis
When the unit is operating in Unoccupied Night Setback, the sequence uses a
hysteresis added(heating) or subtracted(cooling) from the setpoint to turn the unit
back off.
o r s
uTside eseT eTpoinTs
This screen only appears if outside reset is selected as the reset control mode.
m s d
ode wiTch isplay
This screen displays the delay time required before switching between heating
and cooling mode.
s d
TarTup isplay
This screen displays the delay time after the fans have started and tempering
begins.
s
eTpoinT
Microprocessor Controller for DOAS 19