All installations and services must be performed by qualified service personnel.
7
executed prior to the control switching into a cooling mode. In the case where a call for fan “G” already
exists and either a “W” or a “Y” call is initiated, the blower speed will switch to the respective “W” or a
“Y” speed following the blower on delay for that call.
Six dip switches select Speed values for heat, cool, fan and dehumidification blower speeds (see the CFM
Tables).
Blower On and Off Delays
Four Heat blower on and four blower off delays are selected by two dip switches for each function. Refer to
Table 1 for specific delay values.
Speed Selection values
Three dip switches select 8 cooling speeds. Dependant fan, and dehumidification speeds are selected by
the same switches, their tabular values are enacted when their function is called.
Three additional dip switches select 8 heating speeds which are enacted when heat is called. This allows
independent selection of heating and cooling capacity parameters. See the CFM Tables for speeds.
F. CFM TABLES
The following tables contain blower speed settings and their respective air flowrates for the ECM blower motor.
To change air flowrates from that of the shipped settings, use the respective SW1 dipswitch on the furnace’s
integrated control board (see Figure 2).
COOLING SPEEDS
HEATING SPEEDS & TEMPERATURE RISE
°F Rise
CFM
COOL
LOW
DEHUM
3-ON
6-OFF
2-OFF
5-OFF
560
1-OFF
4-OFF
3-ON
6-OFF
2-OFF
5-OFF
1-ON
4-ON
3-ON
6-OFF
2-ON
5-ON
840
1-OFF
4-OFF
3-ON
6-OFF
2-ON
5-ON
980
1-ON
4-ON
6-ON
5-OFF
1120
4-OFF
Factory shipped
settings
1500
800
4
63
1500
84
70
1350
1125
77
1230
SW1
switch
settings
OL11
OL11
2
800
400
SW 1
switch
settings
Tons
CFM
3.5
700
2.5
1000
500
1400
700
3
1200
600
Summary of Contents for OL11-105FDBE
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