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HEAT TYPE — This configuration is used to define the type
of heat installed on the terminal. A 0 or 1 is equal to None. A 2
is equal to Two Position. A 3 is equal to Staged Electric. A 4 is
equal to Modulating/CV. A 5 is equal to combination.
Heat Type:
Range
Default Value
HEATING LOOP PARAMETERS — The
gains and start value define how the terminal will respond to
deviations in measured space temperature in order to control to
the heat set point.
The Proportional Gain is calculated each time the space
temperature is compared to the heat set point. As the error
from set point goes to zero, the Proportional Gain will also go
to zero.
The Integral Gain is a running summation of all integral
terms since the loop started. This has the affect of trimming off
any offset from set point which might occur if only the
Proportional Gain existed. Normally a proportional loop with
no Integral Gain would require frequent adjustments of the
starting value to eliminate the offset as loading conditions on
the room change.
The Derivative Gain is not needed. This term tends to
nullify large changes in the Proportional Gain for dampened
response.
The Start Value is the initial value that is then modified by
the Error terms of the PID calculation.
Heating Loop Parameters
Proportional Gain: Range
Default Value
Integral Gain:
Range
Default Value
Derivative Gain: Range
Default Value
Start Value:
Units
Range
Default Value
DUCTED HEAT — The Ducted Heat configuration is used
to configure the terminal for ducted heat. If a local heat source
is in the duct and requires airflow to provide heat, set the Duct-
ed Heat configuration for yes.
Ducted Heat:
Range
Default Value
MAXIMUM TEMPERATURE — This configuration is used
to configure the maximum supply-air temperature desirable for
heating the space. This will cause the heat to be modulated or
cycled using this value as the maximum temperature of the air
to be supplied.
Maximum
Temperature:
Units
Range
Default Value
NUMBER OF ELECTRIC STAGES — This configuration
is used to define the number of stages of electric heat controlled
by the zone controller.
Number of
Electric Stages:
Range
Default Value
HEAT ON DELAY — The Heat On Delay configuration is
used to define a delay from the time a parallel terminal fan is
started until the heat is activated.
Heat On Delay:
Units
Range
Default Value
FAN OFF DELAY — The Fan Off Delay configuration is
used to define a delay time. The delay time is from when the
0 to 5
0
heating
loop
00.0 to 99.9
8.0
00.0 to 99.0
3.0
00.0
0.0
F (C)
40 to 125
80
No/Yes
Yes
F (C)
40 to 200
110
1 to 3
1
minutes
1 to 60
2
32
heat is deactivated (in a parallel terminal) until the parallel fan
is deactivated. This allows the fan to circulate air and remove
the residual heat from the heat source.
Fan Off Delay:
Units
Range
Default Value
TWO-POSITION HEAT LOGIC — This configuration is
used for controlling a normally closed or normally open valve
for hot water. Use normal logic if the valve is normally closed.
Use inverted logic if the valve is normally open.
Two Position
Heat Logic:
Range
Default Value
SYSTEM CALL FOR HEAT? — This decision is used
whenever auxiliary heat is available and can handle the heat
load for the zone without calling the system for heat. This
prevents the entire building from going to heat for one cold
room. Configure this decision to No when this zone should not
be allowed to call the air source for heat.
System Call
For Heat:
Range
Default Value
SUPPLEMENTAL HEAT LOCKOUT TEMP — This config-
uration is the temperature setting that is compared to the
outside air temperature to make a determination if supplemen-
tal heat at the zone will be allowed to operate.
Supplemental Heat
Lockout Temp:
Units
Range
Default
SYSTEM PILOT AVERAGING — This configuration de-
termines how multiple sensors are averaged with the System
Pilot. A 0 equals System Pilot only. A 1 equals with one T55
sensor. A 2 equals with four T55 sensors. A 3 equals with nine
T55 sensors.
System Pilot
Averaging:
Range
Default Value
SPACE TEMPERATURE TRIM — This configuration is used
to trim a space sensor which might need calibration. For
example, if the temperature displayed is two degrees above the
value measured with calibrated test equipment, input a value of
–2.0.
System Pilot
Trim:
Units
Range
Default Value
SUPPLY AIR TEMPERATURE TRIM — This configuration
is used to trim a supply air sensor which might need calibra-
tion. For example, if the temperature displayed is two degrees
above the value measured with calibrated test equipment, input
a value of –2.0.
Supply Air Temperature
Trim:
Units
Range
Default Value
LOCAL SAT INSTALLED — This configuration tells the
zone controller if a local SAT sensor is installed. When config-
ured as "Yes", the zone controller will use this information to
determine if the local SAT sensor has failed or is out of range
and has sensed an alarm. When configured to "No", the SAT
point will read 0.0° F and the SAT alarm condition will be
cleared.
Local SAT
Installed:
Range
Default
minutes
1 to 15
2
Normal/Invert
Normal
No/Yes
Yes
F
–40.0 to 140 F
140
0-3
0
delta F (delta C)
–9.9 to 9.9
0.0
delta F (delta C)
–9.9 to 9.9
0.0
No/Yes
Yes
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