Specifications

17
SUBMASTER GAIN LIMIT — The Submaster Gain Limit
is used to define the submaster gain limit that is multiplied by
the Submaster Error and added to the Submaster Center Value
to produce the output value that will be sent to the device. The
sign of the submaster gain limit determines the direction in
which the output will be driven in response to a given error.
The gain is expressed in percent change in output per
degree of error.
Submaster Gain
Limit Reference: Range: –20.0 to 20.0
Default Value: –5.5
SUBMASTER CENTER VALUE — The Submaster Center
Value is used to define the submaster loop center value which
defines the starting point of the loop. This value typically repre-
sents the midpoint of the range of the device being controlled.
Submaster Center
Value Reference: Units: Percent
Range: 0 to 100
Default Value: 60
DAMPER MOVEMENT BAND (NOT USED) — The Damp-
er Movement Band is used to define what the minimum de-
sired range of change in economizer damper position that is
required before the controller will attempt to open/close the
economizer.
Damper Movement
Reference: Units: Percent
Range: 0 to 5
Default Value: 0
OAT TEMP BAND — The OAT Temp Band is used to slow
the response of the economizer damper based on the value of
OAT. In other words, the colder OAT gets the slower the rate
of change in the economizer.
OAT Temp
Reference: Range: 0 to 40 Delta Degrees F
(Delta Degrees C)
Default Value: 25.0
MINIMUM DAMPER POSITION (NOT USED) — The min-
imum damper position (MDP) specifies user configured occu-
pied minimum economizer damper position. The control
selects the greatest value between MDP and IAQ calculated
Minimum Position. The resulting value is the Final Minimum
Damper Position IQMP for Occupied mode.
Economizer Damper is limited to IQMP in Occupied mode,
or whenever Supply Fan is ON in units with Thermostat
control.
Minimum Damper
Position: Units: Percent
Range: 0 to 100
Default Value: 20.0
LOW TEMP MINIMUM DAMPER POSITION OVER-
RIDE (NOT USED) — The Low Temperature Minimum
Damper Position (MDP) specifies the value for purge
minimum damper position for low outdoor air temperature
conditions.
The IAQ Pre-Occupancy Purge Algorithm shall use this
value for the minimum damper position whenever Outdoor Air
Temperature is below Unoccupied OAT Lockout Temperature.
The Low Temperature MDP must be lower than the config-
ured Minimum Damper Position.
Low Temperature
MDP Override: Units: Percent
Range: 0 to 100
Default Value: 100
DX COOLING LOCKOUT — The DX (Direct Expansion)
Cooling Lockout function Enables/Disables Low Ambient DX
Cooling Lockout option. When DX Cooling Lockout is
enabled, Cooling control will compare OAT against the DX
Cooling Lockout Temperature. Whenever OAT <= the DX
Cooling Lockout Temperature and current DX stages are 0, the
control will set Cooling Submaster Reference (CCSR) to
150 F. That will prevent the unit from staging up.
DX Cooling
Lockout: Range: On/Off
Default Value: On
DX COOLING LOCKOUT TEMPERATURE — The DX
Cooling Lockout Temperature specifies Low Ambient DX
Cooling Lockout Temperature that is compared against OAT to
determine if the unit can stage up or not.
DX Cooling
Lockout Temp: Units: Degrees F (Degrees C)
Range: 40.0 to 60.0
Default Value: 45.0
SAT CMP1 LOCKOUT TEMP — The SAT CMP1 Lockout
Temperature displays the low supply temperature set point for
compressor no. 1 supply air during cooling. If compressor no. 1
is on during Cooling mode, the economizer will assist the cool-
ing and work to maintain a discharge air temperature slightly
above lockout temperature set point. If the economizer is at
minimum and the supply air temperature goes below Lockout
Temperature set point, the compressor will cycle to maintain
the supply air set point. The minimum on and off times will
still be in effect.
SAT CMP1
Lockout Temp: Units: Degrees F (Degrees C)
Range: 50.0 to 65.0
Default Value: 55.0
SAT CMP2 LOCKOUT TEMP — The SAT CMP2 Lockout
Temperature displays the low supply temperature set point for
compressor no. 2 supply air during cooling. If compressor no. 2
is on during Cooling mode, the economizer will assist the cool-
ing and work to maintain a discharge air temperature slightly
above lockout temperature set point. If the economizer is at
minimum and the supply air temperature goes below Lockout
Temperature set point, the compressor will cycle to maintain
the supply air set point. The minimum on and off times and
stage-up and down timers will still be in effect.
SAT CMP2
Lockout Temp: Units: Degrees F (Degrees C)
Range: 45.0 to 55.0
Default Value: 50.0
TIME GUARD OVERRIDE — The Time Guard Override
function will reset the Time Guard. Whenever this option is
changed from OFF to ON, the control will evaluate the amount
of time left in Compressor Time Guards.
If the time in a Time Guard is more than 30 seconds, it will
be replaced with 30 seconds.
NOTE: Changing this decision from OFF to ON will only
result in one-time Time Guards override.
To perform the override again, the override must be
changed from OFF to ON again.
Time Guard
Override: Range: On/Off
Default Value: Off