Carrier 33ZCVAVTRM Specifications Page 165

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39
The IAQ PID includes the following set points: Proportion-
al Gain, Integral Gain, Derivative Gain, and Starting Value.
Proportional Gain:Range –100.0 to 40.0
Default Value 1.0
Integral Gain: Range –5.0 to 5.0
Default Value 0.5
Derivative Gain: Range –20.0 to 20.0
Default Value 0.0
Starting Value: Units Percent
Range 0.0 to 100.0
Default Value 0.0
ECONOMIZER PID — The proportional gain determines the
response of the PID temperature control loop; a larger gain
increases the amount of damper movement while a smaller
gain requires a larger error to achieve the same results.
The integral gain affects the response of a PID calculation;
an increase in gain will compensate more quickly for propor-
tional control droop. Too large of an integral gain will cause
excessive damper positioning and instability. Enter the desired
integral gain for the damper control algorithm.
The economizer derivative gain has been tested for ideal
operation in sensor mode and should be left at the default value.
NOTE: In thermostat mode, the modulation may appear to
regularly change. However, it will precisely control leaving-air
temperature.
The economizer Starting Value is used to establish the start-
ing value for the damper PID calculation. The Economizer PID
includes the following set points: Proportional Gain, Integral
Gain, Derivative Gain, and Starting Value.
Proportional Gain: Range 100.0 to 100.0
Default Value –4.0
Integral Gain: Range –5.0 to 5.0
Default Value –2.0
Derivative Gain: Range 20.0 to 20.0
Default Value –3.0
Starting Value: Units degrees F (degrees C)
Range 48.0 to 120.0
Default Value 70.0
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 % damper open
Range 0 to 100%
Default Value 60%
DAMPER MOVEMENT BAND — The Damper Movement
Band is used to define what the minimum desired range of
change in economizer damper position that is required before
the controller will attempt to open/close the economizer.
Damper Movement
Reference: Units % damper open
Range 0 to 5%
Default Value 0%
Table 18 — Service Configuration Selection
DESCRIPTION VALUE UNITS NAME
Cooling PID
Proportional Gain 6.0 KP
Integral Gain 3.0 KI
Derivative Gain 5.0 KD
Starting Value 70.0 dF STARTVAL
SAT CMP1 Low Setpoint 55 dF SATLO1
SAT CMP2 Low Setpoint 50 dF SATLO2
Staged Cooling
Total Number of Stages 2 STAGES
Stage 1 Time Guard Enable TG1
Stage 2 Time Guard Enable TG2
Stage 3 Time Guard Disable TG3
Heating PID
Proportional Gain 6.0 KP
Integral Gain 3.0 KI
Derivative Gain 5.0 KD
Starting Value 75.0 dF STARTVAL
SAT High Setpoint 140 dF SATHI
Staged Heating
Total Number of Stages 2 STAGES
Stage 1 Time Guard Enable TG1
Stage 2 Time Guard Enable TG2
Stage 3 Time Guard Enable TG3
IAQ PID
Proportional Gain 0.1 KP
Integral Gain 0.5 KI
Derivative Gain 0.0 KD
Starting Value 0.0 %STARTVAL
Economizer PID
Proportional Gain -4.0 KP
Integral Gain -2.0 KI
Derivative Gain -3.0 KD
Starting Value 70.0 dF STARTVAL
Submaster Gain Limit -5.5 ESG
Submaster Center Value 60 %CTRVAL
Damper Movement Band 0 % ECONBAND
OAT Temp Band 25 dF TEMPBAND
Minimum Damper Position 20
%MDP
Low Temp MDP Override 100 %LOWMDP
DX Cooling Lockout On DXCTLO
DX Cooling Lockout Temp 45.0 dF DXLOCK
Time Guard Override Off TGO
Continuous Power Exhaust Disable MODPE
Supply Fan Status Enable Disable SFSENABL
Remote Cont/Door Switch 0 RC_DS
ASHRAE 90.1 Supply Fan Yes CONTFAN
Min Setpoint Deadband 1.5 ^F MIN_DBND
Max OAT for Free Cool 75 dF OATMAX
Max Offset Adjustment 2.0 ^F LIMT
Comp Time Gard for Fire Yes COMP_TG
Comp Min Off Time 5 min C_MIN_OF
Comp Min On Time 3 min C_MIN_ON
Mode Change Time 10 min M_SELECT
Space Temp Trim 0.0 ^F RATTRIM
Supply Air Temp Trim 0.0 ^F SATTRIM
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