Carrier WEATHERMASTER 48Z030, Operation And Service Manual

Page: 44 / 180

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Table 33 — Unit Configuration
Fan Mode ( CV.FN ) — The Fan Mode configuration can be
used for machine control types ( Configuration
→
UNIT
→
C.TYP ) 3, 4, 5, and 6. The Fan Mode variable
establishes the operating sequence for the supply fan during
occupied periods. When set to 1 (Continuous), the fan will
operate continuously during occupied periods. When set to 0
(Automatic), the fan will run only during a heating or cooling
mode.
Remote Switch Config (
RM.CF ) — The remote switch input
is connected to TB201 terminals 1 and 2. This switch can be
used for several remote control functions. Please refer to the
Remote Control Switch Input section for details on its use and
operation.
CEM Module Installed (
CEM ) — This configuration instructs
the control to communicate with the controls expansion module
(CEM) over the local equipment network (LEN) when set to
Yes. When the unit is configured for certain sensors and configu-
rations, this option will be set to Yes automatically.
The sensors and configurations that automatically turn on
this board are:
Configuration
→
UNIT
→
SENS
→
SRH.S = Enable (Space
Relative Humidity Sensor Enable)
Configuration
→
UNIT
→
SENS
→
RRH.S = Enable (Return
Air Relative Humidity Sensor Enable)
Configuration
→
EDT.R
→
RES.S = Enable (4 to 20 mA Sup-
ply Air Reset Sensor Enable)
Configuration
→
ECON
→
ORH.S = Enable (Outside Air Rel-
ative Humidity Sensor Enable)
Configuration
→
ECON
→
CFM.C
→
OCF.S = Enable (Out-
door Air CFM Sensor Enable)
Configuration
→
DEHU
→
D.SEN = 3 (DISCR.INPUT)
(Dehumidification Sensor – Discrete Input Select)
Configuration
→
DMD.L
→
DM.L.S = 1 (2 SWITCHES)
(Demand Limiting using 2 discrete switches)
Configuration
→
DMD.L
→
DM.L.S = 2 (4-20 MA CTRL)
(Demand Limiting using a 4 to 20 mA sensor)
Configuration
→
IAQ
→
AQ.CF
→
IQ.I.C = 1 (IAQ DISCRETE)
(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 to 20 mA sensor, no DAQ)
Temperature Compensated Start Cooling Factor (
TCS.C ) —
This factor is used in the equation of the Temperature Compen-
sated 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 Cooling
is not permitted.
Temperature Compensated Start Cooling Factor
( TCS.H ) —
This factor is used in the equation of the Temperature Compen-
sated 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 Downs Unit (
SFS.S ) — This configuration
will determine whether the unit should shut down on a supply
fan status fail or simply alert the condition and continue to run.
If set to YES, then the control will shut down the unit and send
out an alarm if supply fan status monitoring fails. If set to NO,
the control will not shut down the unit if supply fan status mon-
itoring fails but the control will send out an alert.
Fan Status Monitoring (
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.
Unit Size (
SIZE ) — There are several unit sizes (tons) for the
Z Series control. Make sure this configuration matches the size
called out by the model number of the unit. This is important as
the cooling stage tables are directly determined based on both
the SIZE and 50.HZ configurations.
ITEM EXPANSION RANGE UNITS CCN POINT DEFAULTS
UNIT UNIT CONFIGURATION
C.TYP Machine Control Type 1 - 6 CTRLTYPE 4
CV.FN Fan Mode (0=Auto, 1=Cont) 0 - 1 FAN_MODE 1
RM.CF Remote Switch Config 0 - 3 RMTINCFG 0
CEM CEM Module Installed Yes/No CEM_BRD No
TCS.C Temp.Cmp.Strt.Cool Factr 0 - 60 min TCSTCOOL 0
TCS.H Temp.Cmp.Strt.Heat Factr 0 - 60 min TCSTHEAT 0
SFS.S Fan Fail Shuts Down Unit Yes/No SFS_SHUT No
SFS.M Fan Stat Monitoring Type 0 - 2 SFS_MON 0
VAV.S VAV Unocc.Fan Retry Time 0 - 720 min SAMPMINS 50
SIZE Unit Size (30-105) 30 - 105 UNITSIZE 30
50.HZ 50 Hertz Unit ? Yes/No UNIT_HZ No
MAT.S MAT Calc Config 0 - 2 MAT_SEL 1
MAT.R Reset MAT Table Entries? Yes/No MATRESET No
MAT.D MAT Outside Air Default 0 - 100 % MATOADOS 20
ALTI Altitude……..in feet: 0 - 60000 ALTITUDE 0
DLAY Startup Delay Time 0 -900 sec DELAY 0
AUX.R Auxiliary Relay Config 0 - 3 AUXRELAY 0
SENS INPUT SENSOR CONFIG
SPT.S Space Temp Sensor Enable/Disable SPTSENS Disable
SP.O.S Space Temp Offset Sensor Enable/Disable SPTOSENS Disable
SP.O.R Space Temp Offset Range 1 - 10 SPTO_RNG 5
SRH.S Space Air RH Sensor Enable/Disable SPRHSENS Disable
RRH.S Return Air RH Sensor Enable/Disable RARHSENS Disable
FLT.S Filter Stat.Sw.Enabled ? Enable/Disable FLTS_ENA Disable