Technibel Climatisation GRFMI 1158 R7I, Руководство по обслуживанию и руководство по проведению испытательных запусков

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1. 2WAY VRF DCI Alarm Codes Alarm Codes
P22 Alarm
Alarm code P22
Alarm meaning Fan motor trouble
Alarm conditions Fan motor start failure, fan motor Hall IC input failure
Probable cause Possible causes are a Hall IC input circuit failure and a fan HIC failure.
Check Check the fan motor wiring, the Hall IC wiring, and the connector connections. If the wiring and
connectors are normal, then check that the capacitor of the Hall IC input circuit is securely
soldered onto the PCB. Also use a tester and measure the resistance between fan HIC power
(HIC+) and ground (HIC–). If there is a short circuit, there is an HIC malfunction.
Correction If the fan does not start, the below corrections may be effective.
(1) If there is a fan HIC failure or circuit failure, replace the PCB.
(2) If the fan motor is locked, replace the fan motor.
Example
Notes
Turn OFF the power, and check the continuity of “+” and “–” on the fan circuit PCB.
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(+) (–)
P26 Alarm
Alarm code P26
Alarm mea n i ng I n verter compre ss or hi g h-freq u e n cy overc u rre n t alarm
Alarm co n ditio ns Thi s alarm occ u r s whe n c u rre n t tro u ble or c u rre n t detectio n tro u ble occ u r s at a n i n verter freq u e n cy
of 8 0 Hz or hi g her after s tart (whe n tro u ble j u d g me n t c u rre n t i s detected 1 3 .5 A hi g her i n the
primary or s eco n dary c u rre n t).
Probable ca us e The detectio n method s are the s ame a s for P16. However the fact that operatio n u p to hi g h
freq u e n cie s i s po ss ible doe s n ot n ece ss arily mea n that a compre ss or fail u re i s the ca us e of the
tro u ble. S tart the compre ss or s everal time s . If alarm P26 occ u r s every time a n d alarm P16 doe s
n ot occ u r at all, the n the po ss ibility of a compre ss or fail u re i s low. It i s al s o po ss ible that the
ca us e may be the effect s of n oi s e.
Check Check the power wiri ng a n d co nn ector wiri ng .
Correctio n It i s po ss ible to re s olve thi s tro u ble by limiti ng the maxim u m freq u e n cy.
Example
Note s
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P29 Alarm
Alarm code P29
Alarm mea n i ng I n verter compre ss or mi ss i ng pha s e or lock alarm
Alarm co n ditio ns Thi s alarm may occ u r at s tart, a n d occ u r s whe n mi ss i ng pha s e or lock i s detected, a n d whe n a
DCCT fail u re occ u r s .
Probable ca us e Ge n erally thi s alarm occ u r s whe n the refri g era n t pre ssu re bala n ce i s un eve n at s tart, or whe n
i n verter compre ss or lock occ u r s , there i s a mi ss i ng pha s e i n the i n verter compre ss or wiri ng , or a
DCCT fail u re occ u r s . Thi s ca n be j u d g ed to be s tarti ng tro u ble which i s n ot ca us ed by HIC .
Check Check the power wiri ng a n d co nn ector wiri ng .
Correctio n DCCT fail u re (replace PCB) or compre ss or fail u re
Example
Note
s U s e a te s ter to mea su re the volta g e betwee n the DCCT o u tp u t termi n al o n the rear of the PCB
a n d the g ro un d. If the volta g e i s n ot withi n 2 – 3 V, the n the DCCT ha s malf un ctio n ed.
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