Interpreting The Diagnostic Led's; Led Description; Installation Verification; Troubleshooting The Installation - Nordyne iHybrid DF6SF Series Installation Instructions Manual

keep the solenoid pulled in. As the 24VAC supply voltage
varies, Comfort Alert intelligently changes the solenoid
DC voltage supply to minimize power consumption.
A voltmeter attached to the DC Sol output will measure
4 - 18VDC, when solenoid should be energized, depending
on the level of the 24 VAC supply.

Interpreting the Diagnostic LED's

When an abnormal system condition occurs, the Comfort
AlertTM module displays the appropriate ALERT and/or
TRIP LED. The yellow ALERT LED will flash a number of
times consecutively, pause and then repeat. To identify
a Flash Code number, count the number of consecutive
flashes. See Table 15 (pages 35 - 36) for flash code
identification or Table 16 (page 37) for module wiring
troubleshooting.
Each time the module powers up, the last ALERT Flash
Code that occurred prior to shut down is displayed for
one minute. The module will continue to display the LED
until the condition returns to normal or if 24 VAC power is
removed from the module.

LED Description

• POWER LED (Green): indicates voltage is present at
the power connection of the module.
• ALERT LED (Yellow): communicates an abnormal
system condition through a unique flash code.
notE: The ALERT LED will flash consecutively, pause
and then repeat the process. The number of consecutive
flashes, referred to as the Flash Code, correlates to a
particular abnormal condition. Detailed descriptions of
these ALERT Flash Codes are listed in Table 15.
• TRIP LED (Red): indicates a demand signal is received
from the thermostat, but current to the compressor is
not detected by the module. The TRIP LED typically
indicates if the compressor protector is open or the
compressor has no power.
The scroll compressor's R (run), C (common), and S (start)
wires are routed through the holes in the Comfort Alert
module marked R, C, & S. notE: The common wire does
not need to be routed through the module for it to operate.

Installation Verification

To verify the Comfort Alert is correctly installed, two
functional tests can be performed.
1. Disconnect power from the compressor and force a
thermostat call for cooling. notE: The Trip LED (red)
should turn on indicating a compressor trip as long as
24VAC is measured at the Y terminal. If the Trip LED does
not function as described, refer to the wiring diagrams
(Figures 14 or 16, pages 32 or 34).
2. Disconnect power from the compressor and 24VAC from
Comfort Alert.
3. Remove the wire from Y terminal of Comfort Alert, reapply
24VAC power to Comfort Alert and reconnect power to
the compressor.
4. Set the thermostat's system mode to COOL.
notE: When the compressor starts to run, the Alert
LED (yellow) will begin flashing a Code 8 indicating a
welded contactor.
5. Disconnect power from the compressor and 24VAC from
Comfort Alert.
6. With Comfort Alert OFF, reattach the wire to the Y
terminal. Reapply power to compressor and 24VAC to
Comfort Alert. notE: The Alert LED (yellow) will flash
the previous code 8 for 1 minute and then turn off. If the
yellow LED does not function, refer to the wiring diagrams
(Figures 14 or 16).

Troubleshooting the Installation

Depending on system configuration, some ALERT Flash
codes may not be active. The presence of safety switches
affects how the system alerts are displayed by this module.

Resetting Alert Codes

Alert Codes can be reset manually and automatically. The
manual method to reset an Alert code is to cycle the power
to Comfort Alert off and on. For automatic reset, Comfort
Alert continues to monitor the compressor and system after
an Alert is detected. If conditions return to normal, the Alert
code is turned off automatically.
optional outdoor temperature Sensor
An outdoor temperature sensor can be installed in the
field for use in conjunction with a compatible heat pump
thermostat to convert heat pump mode of operation over
to the gas heat system when outdoor conditions no longer
favor operating the heat pump. Refer to the installation
and operating instructions of the accessory kit for further
information.

Grounding

WARnInG:
The unit cabinet must have an uninterrupted or
unbroken electrical ground to minimize personal
TM
injury if an electrical fault should occur. Do not
use gas piping as an electrical ground!
This unit must be electrically grounded in accordance
with local codes or, in the absence of local codes, with
the National Electrical Code (ANSI/NFPA 70) or the CSA
C22.1 Electrical Code. Use the grounding lug provided in
the control box for grounding the unit.
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