89
Table 69 — Indoor Air Quality Configuration
IAQ Analog Sensor Config (Configuration
IAQ
AQ.CF
IQ.A.C)
This is used to configure the type of IAQ position control. It has
the following options:
• IQ.A.C = 0 (No analog input). If there is no other minimum
position control, the economizer minimum position is Con-
figuration
IAQ
EC.MN and there will be no IAQ control.
• IQ.A.C = 1 (IAQ analog input). An indoor air (space or return
air) CO
2
sensor is installed. If an outdoor air CO
2
sensor is
also installed, or OAQ is broadcast on the CCN, or if a default
OAQ value is used, then the unit can perform IAQ control.
• IQ.A.C = 2 (IAQ analog input with minimum position
override) — If the differential between IAQ and OAQ is
above Configuration
IAQ
AQ.SP
DAQ.H, the econ-
omizer minimum position will be the IAQ override posi-
tion (Configuration
IAQ
AQ.SP
IQ.O.P).
• IQ.A.C = 3 (4 to 20 mA minimum position) — With a 4 to
20 mA signal connected to TB201 terminal 7 and 8, the
economizer minimum position will be scaled linearly from
0% (4 mA) to EC.MN (20 mA).
• IQ.A.C = 4 (10K potentiometer minimum position) — With a
10K linear potentiometer connected to TB201 terminal 7 and
8, the economizer minimum position will be scaled linearly
from 0% (0 ohms) to EC.MN (10,000 ohms).
IAQ Analog Fan Config (Configuration
IAQ
AQ.CF
IQ.A.F)
This configuration is used to configure the control of the indoor
fan. If this option is used, then the IAQ sensor must be in the space
and not in the return duct.
It has the following configurations:
• IQ.A.F = 0 (No Fan Start) — IAQ demand will never
override normal indoor fan operation during occupied or
unoccupied period and turn it on.
• IQ.A.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.A.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.
For IQ.A.F = 1 or 2, the fan will be turned on as described
above when DAQ is above the DAQ Fan On Set Point (Con-
figuration
IAQ
AQ.SP
D.F.ON). The fan will be turned
off when DAQ is below the DAQ Fan Off Set Point (Configu-
ration
IAQ
AQ.SP
D.F.OF). The control can also be set
up to respond to a discrete IAQ input. The discrete input is
connected to TB202 terminal 12 and 13.
IAQ Discrete Input Config (Configuration
IAQ
AQ.CF
IQ.I.C)
This configuration is used to set the type of IAQ sensor. The fol-
lowing are the options:
• IQ.I.C = 0 (No Discrete Input) — No discrete input will be
used and the standard IAQ sensor input will be used.
• IQ.I.C = 1 (IAQ Discrete Input) — The IAQ level (high or
low) will be indicated by the discrete 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) — The IAQ level (high or low) will be indicated by
the discrete input and the economizer minimum position will
be the IAQ override position, IQ.O.P (when high). It is also
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
O.C.MX Economizer Min.Flow 0 to 20000 CFM OACFMMAX 2000
O.C.MN IAQ Demand Vent Min.Flow 0 to 20000 CFM OACFMMIN 0
O.C.DB Econ.Min.Flow Deadband 200 to 1000 CFM OACFM_DB 400
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
IQ.O.C IAQ Override Flow 0 to 31000 CFM IAQOVCFM 10000
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
To Next Page
Loading...
