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ITEM
TRIM
SENSOR TRIM CONFIG.
SAT.T
Air Temp Lvg SF Trim
RAT.T
RAT Trim
OAT.T
OAT Trim
SPT.T
SPT Trim
L.SW.T
Limit Switch Trim
CCT.T
Air Temp Lvg Evap Trim
DTA.1
A1 Discharge Temp Trim
SP.A.T
Suct.Press.Circ.A Trim
SP.B.T
Suct.Press.Circ.B Trim
DP.A.T
Dis.Press.Circ.A Trim
DP.B.T
Dis.Press.Circ.B Trim
Suction Pressure Circuit B Trim (SP.B.T)
This variable is used to adjust the suction pressure sensor reading
for circuit B. The sensor reading can be adjusted ±50 psig to
match the actual measured pressure.
Discharge Pressure Circuit A Trim (DP.A.T)
This variable is used to adjust the discharge pressure sensor read-
ing for circuit A. The sensor reading can be adjusted ±50 psig to
match the actual measured pressure.
Discharge Pressure Circuit B Trim (DP.B.T)
This variable is used to adjust the discharge pressure sensor read-
ing for circuit B. The sensor reading can be adjusted ±50 psig to
match the actual measured pressure.
4 to 20 mA Inputs
There are a number of 4 to 20 mA inputs which may be calibrated.
These inputs are located in Inputs
•
SP.M.T — static pressure milliamp trim
•
BP.M.T — building pressure milliamp trim
•
OA.M.T — outside air cfm milliamp trim
•
RA.M.T — return air cfm milliamp trim
•
SA.M.T — supply air cfm milliamp trim
Discrete Switch Logic Configuration
The SW.LG submenu is used to configure the normally open/nor-
mally closed settings of switches and inputs. This is used when
field-supplied switches or input devices are used instead of Carrier
devices. The normally open or normally closed setting may be dif-
ferent on a field-supplied device. These points are used to match
the control logic to the field-supplied device.
The defaults for this switch logic section will not normally need
changing. However, if a field-installed switch is used that is differ-
ent from the Carrier switch, these settings may need adjustment.
IMPORTANT: Many of the switch inputs to the control can be
configured to operate as normally open or normally closed.
Settings for switch logic are found at the local displays under the
Configuration
SW.LG submenu. See Table 78.
Filter Status Input — Clean (FTS.L)
The filter status input for clean filters is set for normally open. If a
field-supplied filter status switch is used that is normally closed
for a clean filter, change this variable to closed.
IGC Feedback — Off (IGC.L)
The input for IGC feedback is set for normally open for off. If a
field-supplied IGC feedback switch is used that is normally closed
for feedback off, change this variable to closed.
Table 77 — Sensor Trim Configuration
EXPANSION
4-20. They are:
RANGE
UNITS
–10 to 10
^F
–10 to 10
^F
–10 to 10
^F
–10 to 10
^F
–10 to 10
^F
–10 to 10
^F
–10 to 10
^F
–50 to 50
PSIG
–50 to 50
PSIG
–50 to 50
PSIG
–50 to 50
PSIG
Remote Switch — Off (RMI.L)
The remote switch is set for normally open when off. If a field-
supplied control switch is used that is normally closed for an off
signal, change this variable to closed.
Enthalpy Input — Low (ENT.L)
The enthalpy input is set for normally closed when low. If a field-
supplied enthalpy switch is used that is normally open when low,
change this variable to open.
Fan Status Switch — Off (SFS.L)
The fan status switch input is set for normally open for off. If a
field-supplied fan status switch is used that is normally closed,
change this variable to closed.
Demand Limit Switch 1 — Off (DL1.L)
The demand limit switch no. 1 input is set for normally open for
off. If a field-supplied demand limit switch is used that is normally
closed, change this variable to closed.
Demand Limit Switch 2 — Off (DL2.L)
The demand limit switch no. 2 input is set for normally open for
off. If a field-supplied demand limit switch is used that is normally
closed, change this variable to closed.
IAQ Discrete Input — Low (IAQ.L)
The IAQ discrete input is set for normally open when low. If a
field-supplied IAQ discrete input is used that is normally closed,
change this variable to closed.
Fire Shutdown — Off (FSD.L)
The fire shutdown input is set for normally open when off. If a
field-supplied fire shutdown input is used that is normally closed,
change this variable to closed.
Pressurization Switch — Off (PRS.L)
The pressurization input is set for normally open when off. If a
field-supplied pressurization input is used that is normally closed,
change this variable to closed.
Evacuation Switch — Off (EVC.L)
The evacuation input is set for normally open when off. If a field-
supplied evacuation input is used that is normally closed, change
this variable to closed.
Smoke Purge — Off (PRG.L)
The smoke purge input is set for normally open when off. If a
field-supplied smoke purge input is used that is normally closed,
change this variable to closed.
Dehumidify Switch — Off (DH.LG)
The dehumidify input is set for normally open when off. If a field-
supplied dehumidify input is used that is normally closed, change
this variable to closed.
100
CCN POINT
DEFAULT
SAT_TRIM
0
RAT_TRIM
0
OAT_TRIM
0
SPT_TRIM
0
LSW_TRIM
0
CCT_TRIM
0
DTA1TRIM
0
SPA_TRIM
0
SPB_TRIM
0
DPA_TRIM
0
DPB_TRIM
0
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Troubleshooting
