45
Configuration
SP
SP.RS = 1 (Static Pressure Reset us-
ing 4-20ma sensor)
Configuration
SP
SP.RS = 4 (Static Pressure Reset us-
ing VFD Control)
Configuration
ECON
CFM.C
OCF.S = Enable (Out-
door Air CFM Sensor Enable)
Configuration
EDT.R
RES.S = Enable (4-20 ma Sup-
ply Air Reset Sensor Enable)
Configuration
ECON
ORH.S = Enable (Outside Air
Relative Humidity Sensor Enable)
Configuration
IAQ
DEHU
D.SEN = 3 (DISCR.IN-
PUT) (Dehumidification Sensor - Discrete Input Select)
Configuration
BP
DMD.L
DM.L.S = 1 (2 SWITCH-
ES) (Demand Limiting using 2 discrete switches)
Configuration
BP
DMD.L
DM.L.S = 2 (4-20MA
CTRL) (Demand Limiting using a 4-0ma sensor)
Configuration
IAQ
AQ.CF
IQ.I.C = 1 (IAQ DIS-
CRETE) (IAQ discrete switch control)
Configuration
IAQ
AQ.CF
IQ.I.C = 2 (IAQ
DISC.OVR) (IAQ discrete switch "override" control)
Configuration
IAQ
AQ.CF
OQ.A.C = 1 (OAQ
SENS-DAQ) (Outdoor Air Quality Sensor)
Configuration
IAQ
AQ.CF
OQ.A.C = 2 (4-20 NO
DAQ) (4-20ma sensor, no DAQ)
Configuration
IAQ
FLTC
MFL.S = 1,3,4,5 (Main
Filter Status is not disabled or schedule)
Configuration
IAQ
FLTC
PFL.S = 1,3,4,5 (Post Fil-
ter Status is not disabled or schedule)
Liquid Sensors Installed (
LQ.SN) — This configuration in-
structs the control to read the liquid temperature thermistors
and pressure transducers on A and B refrigeration circuits.
Power Monitor Installed (
PW.MN) — This configuration in-
structs the control to monitor the power status input.
VFD Bypass Enable (
VFD.B) — This configuration instructs
the control to enable the EXB in order to use the supply fan re-
lay (SFBYRLY) and ret/exh bypass relay (PEBRLY) outputs.
UV-C Lamp Configuration (
UVC.L) — This configuration
controls the enabling of the UV-C lamps to 0) none, 1) enabled,
2) enabled with status feedback.
Temperature Compensation Start Cooling Factor (
TCS.C
)
— This factor is used in the equation of the Temperature Com-
pensated Start Time Bias for cooling. Refer to the Temperature
Compensated Start section for more information. A setting of
0 minutes indicates Temperature Compensated Start in Cool-
ing is not permitted.
Temperature Compensated Start Heating Factor (
TSC.H
)
— This factor is used in the equation of the Temperature Com-
pensated Start Time Bias for heating. Refer to the Temperature
Compensated Start section for more information. A setting of
0 minutes indicates Temperature Compensated Start in Heating
is not permitted.
Fan Fail Shuts Down Unit (
SFS.S) — This configuration
will allow whether the unit should shut down on a supply fan
status fail or simply alert the condition and continue to run.
YES – Shut down the unit if supply fan status monitoring fails
and send out an alarm
NO – Do not shut down the unit if supply fan status monitor-
ing fails but send out an alert.
Fan Status Monitoring Type (
SFS.M) — This configuration
selects the type of fan status monitoring to be performed.
0 – NONE – No switch or monitoring
1 – SWITCH – Use of the fan status switch
2 – SP RISE – Monitoring of the supply duct pressure.
VAV Unoccupied Fan Retry Time (
VAV.S) — Machine con-
trol types 1 and 2 (VAV-RAT,VAV-SPT) include a process for
sampling the return-air temperature during unoccupied periods
to prove a valid demand for heating or cooling before initiating
an unoccupied heating or cooling mode. If the sampling rou-
tine runs but concludes a valid demand condition does not ex-
ist, the sampling process will not be permitted for the period of
time defined by this configuration. Reducing this value allows
a more frequent re-sampling process. Setting this value to zero
will prevent any sampling sequence.
MAT Calc Config (
MAT.S) — This configuration gives the
user three options in the processing of the mixed-air tempera-
ture (MAT) calculation:
• MAT.S = 0
The control will not attempt to learn MAT over time. The
control will simply calculate MAT based on the position
of the economizer, outside and return air temperature,
linearly.
• MAT.S = 1
The control will attempt to learn MAT over time. Any
time the system is in a vent mode and the economizer
stays at a particular position for long enough, MAT =
EDT. Using this, the control has an internal table
whereby he can more closely zoom in on the true MAT
value.
• MAT.S = 2
The control will stop learning and use whatever the con-
trol has already learned. This would infer that the control
spent a part of its life at MAT.S = 1. This might be useful
to a commissioner of a system who first sets MAT.S = 1,
then might go into the service test mode, turn on the fan
and open the economizer to a static position for a little
more than 5 minutes and then move to several positions
to repeat the same (20%,40%,60%,80%). The only stipu-
lation to this "commissioning" is that it is important that
the difference between return and outside temperature be
greater than 5 degrees. (The greater the delta, the better.)
When done, set MAT.S = 2 and the system has been
"learned" forever.
Reset MAT Table Entries? (
MAT.R) — This configuration
allows the user to reset the internally stored MAT "learned"
configuration entities back to their default values. The defaults
are set to a linear relationship between the economizer damper
position and OAT and RAT in the calculation of MAT.
Altitude.......in feet: (
ALTI) — As the control does not in-
clude a barometric pressure sensor to thoroughly define the cal-
culation of enthalpy and CFM, the control does include an alti-
tude parameter which will serve to set up a "mean" barometric
pressure for use to calculate with. The effect of barometric
pressure in these calculations is not great, but could have an ef-
fect depending on the installed elevation of the unit. Basically,
if the rooftop is installed at a particularly high altitude and en-
thalpy or CFM are being calculated, set this configuration to
the current elevation of the installed rooftop.
Start Up Delay Time (
DLAY) — This option inhibits the unit
from operating after a power reset. The configuration may be
adjusted from 0 to 900 seconds of delay.
Auxiliary Relay Output Configuration (
AUX.R) — This
configuration allows the user to configure the function of the
auxiliary relay output. The output is 1.4 vac, 5 va maximum.
The configuration can be set from 0 to 3. If AUX.R is set to 0,
the auxiliary relay contact will be energized during an alarm.
The output can be used to turn on an indicator light or sound an
alarm in a mechanical room. If AUX.R is set to 1, the auxiliary
relay will energize when the controls determine dehumidifica-
tion/reheat is needed. The relay would be wired to a third party
dehumidification/reheat device and would energize the device
when needed. If AUX.R is set to 2, the auxiliary relay will ener-
gize when the unit is in the occupied state. The relay could then
be used to control lighting or other functions that need to be on
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