Diagnostic Tools; Test Modes; Non-Variable Speed; Variable Speed - American Standard AccuLink Platinum 1050 Installation Manual

Installation Guide
9.

Diagnostic Tools

9.1

Test Modes

Access Test Modes by navigating to Service Menu>Test Modes. All test modes will terminate automatically after 60 minutes
or can be terminated manually at any time.

9.1.1 Non-Variable Speed

MODE
Test Blower
Test Cool
Test Compressor Heat
Test Indoor Heat
Test Compressor and Indoor
Heat
More

9.1.2 Variable Speed

MODE
Charging Mode - Cooling
Check Charge Mode - Heating
Checkout Mode - Cooling
Checkout Mode - Heating
Pump Down Mode - Cooling
Pump Down Mode - Heating
26
SETTINGS DESCRIPTION
50%, 100% Energize indoor blower at the selected speed
Stage 1 Energize the selected stage of cooling operation. The indoor blower will also operate at
Stage 2 the speed required for the selected stage
Stage 1 Energize the selected stage of compressor heating operation. The indoor blower will also
Stage 2 operate at the speed required for the selected stage
Energize the selected stage of indoor heating operation. The blower operation will be
dependent on the indoor heat type:
Stage 1
Electric - blower energized during test mode but the blower speed is controlled by the
Stage 2
indoor unit
Stage 3
Fossil - blower is controlled independently by the indoor unit during test mode
Hydronic - blower is energized during test mode
Stage 1 Indoor Heat Energize all stages of compressor heat and selected stage of indoor electric heat/hydronic
Stage 2 Indoor Heat heat. The blower is energized and runs at the higher of the compressor heat air flow
Stage 3 Indoor Heat versus indoor heat air flow
Closes the normally open Humidifier/AUX contacts. The blower is not energized during
Test Humidifier,
this test mode
Test Aux Contact
Need to see if blower operates during these test modes if blower interlock is enabled.
SETTINGS DESCRIPTION
Energizes outdoor unit at the correct compressor speed and associated indoor blower
speed to set/verify sytem charge. Use sub-cooling tables in the outdoor unit Service Facts
Test to determine correct charge levels. Outdoor temperature must be within 55F to 120F and
indoor temperature must be between 70F to 80F. This is the only approved method for
charging/verifying system charge on variable speed systems.
Energizes outdoor unit at the correct compressor speed and associated indoor blower
speed to compare actual performance to typical performance. Use the pressure curves in
Test
the outdoor unit Service Facts for comparison. This method is not an approved method for
verifiying the charge on variable speed systems.
This test mode allows the user to adjust the cooling compressor speed in selected
increments from minimum to maximum. The single arrows represent a 1% change
0-100%
and double arrows a 5% change. This test mode allows the user to troubleshoot noise/
harmonics which may occur at various compressor speeds.
This test mode allows the user to adjust the heating compressor speed in selected
increments from minimum to maximum. The single arrows represent a 1% change and
1 to100% double arrows a 5% change. The user can also initiate a forced defrost cycle from the test
mode screen. This test mode allows the user to troubleshoot noise/harmonics which may
occur at various compressor speeds.
This test mode will pulse the latching switchover valve to cooling position and run at full
Test compressor speed. The outdoor EEV will remain open and the indoor EEV (if installed) will
continue to control superheat.
This test mode will pulse the latching switchover valve to heating position and run at
Test full compressor speed. The outdoor EEV will control superheat and the indoor EEV (if
installed) will remain open.
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