72
Table 68 — Indoor Air Quality Configuration
IAQ Discrete Input Config (Configuration
IAQ
AQ.CF
IQ.I.C)
This configuration is used to set the type of IAQ sensor. The
following are the options:
• IQ.I.C = 0 (No Discrete Input) — This is used to indicate
that no discrete input will be used and the standard IAQ
sensor input will be used.
• IQ.I.C = 1 (IAQ Discrete Input) — This will indicate that
the IAQ level (high or low) will be indicated by the dis-
crete input. When the IAQ level is low, the economizer
minimum position will be Configuration
IAQ
DCV.C
IAQ.M.
• IQ.I.C = 2 (IAQ Discrete Input with Minimum Position
Override) — This will indicate that the IAQ level (high or
low) will be indicated by the discrete input and the economiz-
er minimum position will be the IAQ override position,
IQ.O.P (when high).
It is also necessary to configure how the fan operates when us-
ing the IAQ discrete input.
IAQ Discrete Fan Config (Configuration
IAQ
AQ.CF
IQ.I.F)
This is used to configure the operation of the fan during an
IAQ demand condition. It has the following configurations:
• IQ.I.F = 0 (No Fan Start) — IAQ demand will never over-
ride normal indoor fan operation during occupied or unoc-
cupied period and turn it on.
• IQ.I.F = 1 (Fan On If Occupied) — IAQ demand will
override normal indoor fan operation and turn it on (if off)
only during the occupied period (CV operation with auto-
matic fan).
• IQ.I.F = 2 (Fan On Occupied/Unoccupied) — IAQ demand
will always override normal indoor fan operation and turn it
on (if off) during both the occupied and unoccupied period.
OAQ 4-20 mA Sensor Config (Configuration
IAQ
AQ.CF
OQ.A.C)
This is used to configure the type of outdoor sensor that will be
used for OAQ levels. It has the following configuration options:
• OQ.A.C = 0 (No Sensor) — No sensor will be used and the
internal software reference setting will be used.
• OQ.A.C = 1 (OAQ Sensor with DAQ) — An outdoor CO
2
sensor will be used.
• OQ.A.C = 2 (4 to 20 mA Sensor without DAQ).
IAQ Econo Override Pos (Configuration
IAQ
AQ.SP
IQ.O.P)
This configuration is the position that the economizer goes to
when override is in effect.
Diff. Air Quality Lo Limit (Configuration
IAQ
AQ.SP
DAQ.L)
This is the differential CO
2
level at which IAQ control of the
dampers will be initiated.
Diff. Air Quality Hi Limit (Configuration
IAQ
AQ.SP
DAQ.H)
This is the differential CO
2
level at which IAQ control of the
dampers will be at maximum and the dampers will be at the
Configuration
IAQ
DCV.C
EC.MN.
DAQ ppm Fan Off Setpoint (Configuration
IAQ
AQ.SP
D.F.OF)
This is the CO
2
level at which the indoor fan will be turned off.
DAQ ppm Fan On Setpoint (Configuration
IAQ
AQ.SP
D.F.ON)
This is the CO
2
level at which the indoor fan will be turned on.
Diff. IAQ Responsiveness (Configuration
IAQ
AQ.SP
IAQ.R)
This is the configuration that is used to select the IAQ response
curves as shown in Fig. 14.
OAQ Lockout Value (Configuration
IAQ
AQ.SP
OAQ.L)
This is the maximum OAQ level above which demand ventila-
tion will be disabled.
User Determined OAQ (Configuration
IAQ
AQ.SP
OAQ.U)
If an OAQ sensor is unavailable, the user can manually set the
OAQ reading.
ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT
DCV.C DCV ECONOMIZER SETPOINTS
EC.MN Economizer Min.Position 0 to 100 % ECONOMIN 5
IAQ.M IAQ Demand Vent Min.Pos. 0 to 100 % IAQMINP 0
AQ.CF AIR QUALITY CONFIGS
IQ.A.C IAQ Analog Sensor Config 0 to 4 IAQANCFG 0
IQ.A.F IAQ 4-20 ma Fan Config 0 to 2 IAQANFAN 0
IQ.I.C IAQ Discrete Input Config 0 to 2 IAQINCFG 0
IQ.I.F IAQ Disc.In. Fan Config 0 to 2 IAQINFAN 0
OQ.A.C OAQ 4-20ma Sensor Config 0 to 2 OAQANCFG 0
AQ.SP AIR QUALITY SETPOINTS
IQ.O.P IAQ Econo Override Pos. 0 to 100 % IAQOVPOS 100
DAQ.L Diff.Air Quality LoLimit 0 to 1000 DAQ_LOW 100
DAQ.H Diff. Air Quality HiLimit 100 to 2000 DAQ_HIGH 700
D.F.OF DAQ PPM Fan Off Setpoint 0 to 2000 DAQFNOFF 200
D.F.ON DAQ PPM Fan On Setpoint 0 to 2000 DAQFNON 400
IAQ.R Diff. AQ Responsiveness -5 to 5 IAQREACT 0
OAQ.L OAQ Lockout Value 0 to 2000 OAQLOCK 0
OAQ.U User Determined OAQ 0 to 5000 OAQ_USER 400
AQ.S.R AIR QUALITY SENSOR RANGE
IQ.R.L IAQ Low Reference 0 to 5000 IAQREFL 0
IQ.R.H IAQ High Reference 0 to 5000 IAQREFH 2000
OQ.R.L OAQ Low Reference 0 to 5000 OAQREFL 0
OQ.R.H OAQ High Reference 0 to 5000 OAQREFH 2000
IAQ.P IAQ PRE-OCCUPIED PURGE
IQ.PG IAQ Purge Yes/No IAQPURGE No
IQ.P.T IAQ Purge Duration 5 to 60 min IAQPTIME 15
IQ.P.L IAQ Purge LoTemp Min Pos 0 to 100 % IAQPLTMP 10
IQ.P.H IAQ Purge HiTemp Min Pos 0 to 100 % IAQPHTMP 35
IQ.L.O IAQ Purge OAT Lockout 35 to 70 dF IAQPNTLO 50
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