Allied Lennox 4AC16LT Series 설치 지침 매뉴얼 - 페이지 17
{카테고리_이름} Allied Lennox 4AC16LT Series에 대한 설치 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Allied Lennox 4AC16LT Series 20 페이지. Split system air conditioner
페이지 인쇄Mis-wired Module Indication
Green LED is not on; module
does not power up
Green LED intermittent;
module powers up only when
compressor runs.
TRIP LED is on, but system
and compressor check OK.
TRIP LED and ALERT LED
flashing together.
ALERT Flash Code 3
(compressor short cycling)
displayed incorrectly.
ALERT Flash Code 5, 6, or
7 (open circuit, open start
circuit, or open run circuit)
displayed incorrectly.
ALERT Flash Code 6 (open
start circuit) displayed for
Code 7 (open run circuit) or
vice versa.
ALERT Flash Code 8
(welded contactor) displayed
incorrectly.
506467-01
Mis-wired Module Troubleshooting
Determine if both R and C module terminals are connected. Verify voltage is present at module's R
and C terminals. Review 24VAC Power Wiring section for R and C wiring.
Determine if R and Y terminals are wired in reverse. Verify module's R and C terminals have a
constant source. Review 24VAC Power Wiring section for R and C wiring.
Verify Y terminal is connected to 24VAC at contactor coil. Verify voltage at contactor coils falls below
0.5VAC when off.
Verify R and C terminals are supplied with 19-28VAC.
Verify Y terminal is connected to 24VAC at contactor coil. Verify voltage at contactor coil falls below
0.5VAC when off.
Check that compressor run and start wires are through module's current sensing holes. Verify Y
terminal is connected to 24VAC at contactor coil. Verify voltage at contactor coil falls below 0.5VAC
when off.
Check that compressor run and start wires are routed through the correct module sensing holes.
Determine if module's Y terminal is connected. Verify Y terminal is connected to 24VAC at contactor
coil. Verify 24 VAC is present across Y and C when the thermostat demand signal is present. If not,
R and C are reverse wired. Verify voltage at contactor coil falls below 0.5VAC when off. Review
Thermostat Demand Wiring for Y and C wiring.
Table 10. Mis-wired Module Troubleshooting
Recommended Troubleshooting Action
Issue 1827
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