506860-03
Issue 1946
Page 16 of 27
Fan Cycling (J3)
When the jumper is “ON,” the fan will cycle (see Figure
8) for five minutes if the outdoor ambient air temperature
is between 15ºF and 35ºF and the compressor has been
OFF for 25 to 30 minutes. This option helps reduce the
potential for ice build-up on the orifice ring during OFF
cycles greater than 25 to 30 minutes.
Shift Delay (J4)
During the defrost cycle, if the jumper is in the “ON” position,
there will be a compressor start delay of 30 seconds to
reduce the shifting noise of the reversing valve.
Time Delay
The timed-off delay is 5 minutes long. The delay helps
to protect the compressor from short cycling in case the
power to the unit is interrupted or a pressure switch opens.
Figure 8. Control Board
Communicating System
For a communicating system, the Comfort Sync thermostat must be
used. The complete configuration of the outdoor unit is performed
using the Comfort Sync thermostat. For complete details on how to
integrate this unit into a Comfort Sync-enabled system, please refer
to the Comfort Sync Wi-Fi installer’s system setup guide.
Non-Communicating System
For systems with a non-communicating thermostat, the system will
operate based on the settings of the jumpers located on the control
board. All system settings must be done at the control board.
(HP Only)
Compressor
Shift Delay
30
30 second
Delay
(Default)
No Delay
(Two-Stage Heat
Pump Only)
Second Stage
Lock-In Temperature
55 50 45 40
55 50 45 40
55 50 45 40
55 50 45 40
50 Degree
Target
55 Degree
Target
45 Degree
Target
40Degree
Target
(Default)
Defrost Termination
Temperature
(HP Only)
10
0
90 70 50
100 90 70 50
10
0
90 70 50
100 90 70 50
10
0
90 70 50
50 Degree
Target
70 Degree
Target
90 Degree
Target
100 Degree
Target
90
Default when
jumper is
removed or
missing
7-Segment
Display
