IGM Professional Odyssey BAYLOAMS20, Руководство по установке

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ACC-SVN190B-EN 17
Operation and Troubleshooting
Checkout Procedure
W WA AR RN NIIN NG G
H Ha azza arrd do ou uss S Se errv viicce e P Prro occe ed du urre ess!!
F Fa aiillu urre e tto o ffo ollllo ow w a allll p prre ecca au uttiio on nss iin n tth hiiss m ma an nu ua all a an nd d
o on n tth he e tta ag gss,, ssttiicckke errss,, a an nd d lla ab be ellss cco ou ulld d rre essu ulltt iin n
d de ea atth h o orr sse erriio ou uss iin njju urry y..
T Te ecch hn niicciia an nss,, iin n o orrd de err tto o p prro otte ecctt tth he em msse ellv ve ess ffrro om m
p po otte en nttiia all e elle eccttrriicca all,, m me ecch ha an niicca all,, a an nd d cch he em miicca all
h ha azza arrd dss,, M MU US ST T ffo ollllo ow w p prre ecca au uttiio on nss iin n tth hiiss m ma an nu ua all
a an nd d o on n tth he e tta ag gss,, ssttiicckke errss,, a an nd d lla ab be ellss,, a ass w we ellll a ass tth he e
ffo ollllo ow wiin ng g iin nssttrru uccttiio on nss:: U Un nlle essss ssp pe ecciiffiie ed d o otth he errw wiisse e,,
d diisscco on nn ne ecctt a allll e elle eccttrriicca all p po ow we err iin nccllu ud diin ng g rre em mo otte e
d diisscco on nn ne ecctt a an nd d d diisscch ha arrg ge e a allll e en ne errg gy y sstto orriin ng g
d de ev viicce ess ssu ucch h a ass cca ap pa acciitto orrss b be effo orre e sse errv viicciin ng g..
F Fo ollllo ow w p prro op pe err llo occkko ou utt//tta ag go ou utt p prro occe ed du urre ess tto o
e en nssu urre e tth he e p po ow we err cca an n n no ott b be e iin na ad dv ve errtte en nttlly y
e en ne errg giizze ed d.. W Wh he en n n ne ecce essssa arry y tto o w wo orrkk w wiitth h lliiv ve e
e elle eccttrriicca all cco om mp po on ne en nttss,, h ha av ve e a a q qu ua alliiffiie ed d lliicce en nsse ed d
e elle eccttrriicciia an n o orr o otth he err iin nd diiv viid du ua all w wh ho o h ha ass b be ee en n
ttrra aiin ne ed d iin n h ha an nd dlliin ng g lliiv ve e e elle eccttrriicca all cco om mp po on ne en nttss
p pe errffo orrm m tth he esse e tta asskkss..
Before leaving the installation, observe for correct
operation through the desired pressure range (see
Table 3, p. 18 ).
Table 2. Troubleshooting guide
Problem Possible Cause Possible Solution
No fan operation
No 24 volt control voltage
Check for 24 Vac between Y1 or Y2 and C terminals - it should read 24 volts.
No line voltage
Check voltage across brown, orange, and yellow motor leads. If no voltage is
present verify all wiring is correct.
Bad fan motor or controller
If fan does not start, motor is bad and should be replaced. If motor does start,
check controller settings. If motor still fails to start, replace controller.
Improper fan operation
Heat pump jumper not
configured correctly
Verify the heat pump jumper is configured correctly.
Control is not wired correctly See wiring diagrams. Ensure that the 24 Vac power supply is connected.
No fan modulation
No need to modulate the fan
If pressure is equal to or greater than the head pressure control setpoint, the fan
will be operating at full speed.
No input pressure to control
Check for proper transducer and Tee installation. Schrader valve depressor must
depress Schrader valve enough to allow refrigerant into pressure transducer.
Heat pump inputs wired
incorrectly into the controller
Check diagram and verify heat pump inputs are properly wired into the controller.
Miswired Check that the 24 Vac signal and the transducer are wired up correctly into the
controller.
Erratic fan operation
Control is not wired correctly See wiring diagrams.
Pressure transducer problem
Check for proper transducer and Tee installation. Schrader valve depressor must
depress Schrader valve enough to allow refrigerant into pressure transducer.
Dirty or blocked condenser
coil
Clean condenser coil.
The high pressure
switch trips off Improper head pressure
setpoint setting
See unit fails to start above.
Check the setpoint and reduce it if needed.
Reduced cooling
capacity at low Ambient
Evaporative Defrost Control
is active
Disable EDC function in Symbio
™
700