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Troubleshooting - Honeywell TrueDRY DR90 Professional Installation Manual

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Troubleshooting

DR90/120 user Function Test
CONNECT A SHORT
WIRE BETWEEN "DEHU"
AND "R" AT WIRING
TERMINAL BLOCK
DO BOTH FAN AND
COMPRESSOR
COME ON?
DOES THE FAN
SOUND NORMAL?
REMOVE THE FILTER
AND FEEL THE
EVAPORATOR COIL
IS THE EVAPORATOR
COLD? (LIKE HOLDING
A COLD DRINK)
14
PLUG DEHUMIDIFIER
NO
TERMINALS TOGETHER
YES
NO
YES
INLET AIR
TEMPERATURE
80 F (26.7 C)
70 F (21.1 C)
60 F (15.6 C)
CONDUCT A PERFORMANCE TEST:
NO
POSITION AND COLLECT DRAIN
WATER FOR 24 HOURS. COMPARE
AMOUNT OF WATER COLLECTED
YES
INTO OUTLET THAT
HAS POWER
USE A LENGTH OF
VERIFY POWER AT
WIRE TO CONNECT
OUTLET (I.E. CHECK
THE TWO FLOAT
DO BOTH FAN AND
DR90: GALLONS
INLET AIR
COLLECTED IN
HUMIDITY
24 HOURS
60% RH
10 TO 12.5
60% RH
8.5 TO 10.5
60% RH
5 TO 6.5
LEAVE THE DEHUMIDISTAT ON
DR90/120 IN THE "ALWAYS ON"
TO EXPECTED RANGE ABOVE.
TrueDry DR90/DR120 Dehumidification System 69-2690EFS—04
WITH A LAMP)
NO
YES
COMPRESSOR
COME ON?
CALL FOR SERVICE.
TURN DEHUMIDISTAT
BACK TO SETTING OR
DR120:GALLONS
COLLECTED IN
24 HOURS
13.5 TO 16.5
10.25 TO 12.5
7.25 TO 9
IS THE AMOUNT OF
WATER COLLECTED
NORMAL OPERATION.
TURN DEHUMIDISTAT
BACK TO SETTING OR
NO
DOES THE OUTLET
HAVE POWER?
YES
"OFF" POSITION.
NO
IN THE RANGE
EXPECTED?
YES
"OFF" POSITION.
M33755

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