Data Aire dap4 User Manual page 17

MENU B – SETPOINTS continued
Note: This screen is only shown when the airside economizer feature is enabled in
the factory settings menu.
Heating Sp: This set point is used to control heating of the return air
temperature. The range of adjustment is 35.0 – 75.0 °F with a default value
of 60.0 °F.
Heating Dband: This is the amount return air temperature drop below the
set point before the first stage of heating turns on. The range of adjustment
is 1.0 to 5.0° with a default value of is 2.0°
Enthalpy DBand: (Only shown when economizer SP Mode is set for
"Differential Enthalpy" in the factory menu.) This is the amount that the
outside air enthalpy must drop below the return air enthalpy before the
damper can be allowed to open. The range of adjustment is 0.2 to 1.0 BTU
(KJ if temp units set to °C) with a default value of 0.5 BTU.
Damper Hi OA SP: (Only shown when economizer SP Mode is set for
"Fixed Dry Bulb" in the factory menu.) This is the highest temperature that
the outside air can be before the damper is closed. The range of adjustment
is 65.0 to 85.0°F, with a default value of 75°F.
Damper Hi OA DB: (Only shown when economizer SP Mode is set for
"Fixed Dry Bulb" in the factory menu.) This is the how much the outside air
must drop below the "Damper Hi OA SP" before the damper may open. The
range of adjustment is 1.0 to 5.0° with a default value of 1.0°.
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