Hvac CVH8, Руководство по обслуживанию

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CVH8, HVH8, TVH8, VA9, HVA9, TVA9: APPLICATION GUIDELINE & SERVICE MANUAL
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
17
65 Local
DC VOLTS
LOW - SPEED
LIMITING
NA Both
Caused by other fault
code shut down
System will attempt to run again
Low supply line
voltage (< 197 VAC)
Check supply voltage to ODU; if low contact utility
provider
Loose wire in control
box area
Loose wire: check for loose wire in ODU
Inverter internal
damage
Replace Inverter
66 Event
OUTDOOR FAN
DROPPED OUT
6 Minutes Both
MOC is reporting that
fan motor isn’t running Troubleshoot fan motor and make sure it is working
3T Inverter enters test
mode
Replace inverter with latest software
67 Event
STATOR HEATER
FAULT
6 Minutes Both
There is a demand for
stator heat but MOC
doesn’t detect it
Check compressor winding resistance or
mis-wire of compressor leads at terminals U,V,W
Damaged inverter
generating other
inoperable fault codes
such as 88, 95
Replace Inverter
68 Event
10 MIN STAGE 2
WARMUP DELAY
10 Minutes Both
High voltage power
cycle
No action
69
System
Malfunction
INVERTER/COMPRESS
OR INTERNAL FAULT
(Elevates to this fault
code after 5 hidden
occurrences of itself)
15 Minutes
Cool Overcharged System
Check system sub-cooling to determine charge
status, if high remove charge using Charging Mode
(follow proper charging
procedures)
Heat Overcharged System
Check charge in heating mode per heating check
charge chart. If pressures do not match then pull
out charge, weigh in using heating charge method
Both
Phase
imbalance/compressor
or
inverter mis-wire
Check compressor winding resistance or
mis-wire of compressor leads at terminals U,V,W
Flooded start Troubleshoot EXV & TXV
Inverter damage Replace inverter
Compressor damage Replace compressor
71 Event
COMPRESSOR
DROPPED OUT
6 Minutes Both
MOC is reporting that
compressor isn’t
running
Refer to TIC 2015-0017 for more details
3T Inverter enters test
mode
Replace inverter with latest software
72 Local
SUCTION OVER
TEMPERATURE EVENT
(elevates to fault code 82
after 3 occurrences)
15 Minutes Both Refer to fault code 82
Table 10 – Fault Code Actions (Continued)
Flash
Code
Type
AMBER LED
DESCRIPTION
Reset Time Mode Possible Causes Actions