Specifications
9
Table 4 — Indoor Air Quality Configuration Table (48/50HG Units)
Table 5 — Accessory Economizer Static Pressure (in. wg)* — 48/50HG020-028 and 48/50PG20-28 Units
*The static pressure must be added to the external static pressure. The sum
and the evaporator entering-air cfm should then be used in conjunction with
the Fan Performance tables to determine blower rpm and watts.
SUBMODE ITEM DISPLAY ITEM EXPANSION COMMENT
IAQ IAQ Configuration
IA.CF X IAQ Input Configuration
Default:
0ifnoIAQ sensor installed
1ifIAQ sensor installed
0 = No IAQ
1 = Demand Control Ventilation (DCV)
2 = Override IAQ
3 = Control Minimum Position
IA.FN X FanEnableforIAQ Input
Default: 0
0 = Never
1 = Occupied
2 = Always
II.CF X IAQ Level (Switch Input)
Default: 0
0 = Not Switch
1 = DCV NO
2 = DCV NC
3 = Override NO
4 = Override NC
II.FN X IAQ Switch Input Fan CFG
Default: 0
0 = Never
1 = Only When Occupied
2 = Always
AQ.MP XXX Minimum IAQ Position Default: 10 %
MIN.P XXX Economizer Min Position Default: 30 %
OVR.P XXX Econo Override Position Default: 100%
OA.CF X OAQ Sensor Operation
Default: 0
0 = No OAQ
1 = DCV OAQ
2 = Lockout OAQ
OAQ.L XXXX OAQ Lockout Valve Default: 600 ppm
AQD.L XXX AQ Differential Low Default: 100 ppm
AQD.H XXXX AQ Differential High Default: 700 ppm
DF.ON XXX Fan On AQ Differential Default: 600 ppm
DF.OF XXX Fan Off AQ Differential Default: 200 ppm
I.4M XXXX IAQ Sensor Value at 4MA Default: 0 ppm
I.20M XXXX IAQ Sensor Value at 20MA Default: 2000 ppm
O.4M XXXX OAQ Sensor Value at 4MA Default: 0 ppm
O.20M XXXX OAQ Sensor Value at 20MA Default: 2000 ppm
H.4M XXX RH Sensor Value at 4 mA
Default: 0%
Range: 0-100%
H.20M XXX RH Sensor Value at 20 mA
Default: 100%
Range: 0-100%
RH.SP XX Space RH Setpoint
Default: 50%
Range: 30-95%
RH.DB XX Space RH SetPnt Deadband
Default: 5%
Range: 2-20%
COMPONENT
CFM
4,000 4,500 5,000 5,500 6,000 6,500 7,000 7,500 8,000
Economizer 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
COMPONENT
CFM
8,500 9,000 9,500 10,000 10,500 11,000 11,500 12,000
Economizer 0.11 0.12 0.13 0.15 0.16 0.17 0.19 0.20