Freestyle FS-120 LP, Инструкция по эксплуатации

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Part number 550-142-850/0115
79
FreeStyle
™
W
ALL
M
OUNT GAS
-
FIRED WATER BOILER
—
Boiler Manual
32 Troubleshooting
(continued)
Temp
(°F)
Sensor ohms
Temp
(°F)
Sensor ohms
Temp
(°F)
Sensor ohms
Min Max Min Max Min Max
32 34265 37871 100 6847 7568 170 1744 1928
40 27834 30764 110 5545 6129 180 1461 1615
50 21630 23907 120 4517 4992 190 1229 1359
60 16944 18727 130 3698 4088 200 1038 1147
70 13372 14780 140 3043 3364 212 1038 1147
80 10629 11747 150 2517 2782 - - -
90 8504 9399 160 2091 2311 - - -
Check flame signal
1. Navigate to Diagnostics/Inputs on the FreeStyle ™
control display (see pages 56 to 60
FOR NAVIGATION IN
-
structions.
2.
4HEmAMESIGNALVALUEMUSTBEATLEASTONLOWlREFOR
a FreeStyle ™ 80 or 120, and 255 on high fire, reading at
TIMESEQUALSMICROAMPSOFmAMESIGNAL)FTHEmAME
signal drops below this level, the FreeStyle ™ control
will attempt to correct by increasing the blower speed
to increase flame signal.
3.
!LOWmAMESIGNALMAYINDICATEAFOULEDIGNITORORDAM
-
aged ignitor cable insulation.
a. See “Inspect ignition electrode,” page 99 to remove
and inspect the ignitor.
b.
)FREQUIREDCLEANTHEIGNITORANDmAMERODASIN
-
structed, see page 99.
c.
)F CLEANING THE IGNITOR DOES NOT IMPROVE GROUND
wiring is in good condition, and ground continuity
ISSATISFACTORYREPLACETHEIGNITOR
4.
)FmAMESIGNALSTILLREMAINSLOW
a. Inspect the vent and air piping.
b. Check combustion values.
c.
4HEN INSPECT THE HEAT EXCHANGER FOLLOWING THE
PROCEDURESGIVENINTHISMANUALFORINSPECTINGAND
CLEANINGOFTHEHEATEXCHANGERCOVERPLATEANDOTHER
boiler components (starting on page 99).
d. Clean the heat exchanger as described in this manual
IFNECESSARYSEE
page 102.
Check control fuse
!,7!93CHECKCIRCUITFUSESBEFOREREPLACING
control or any major components (blower,
ETC )FAFUSEISBLOWNITCANPREVENT
FreeStyle ™ control or other components
FROMOPERATING
1. Turn OFF power to boiler at external line switch. Then
remove the jacket door.
2. ,OCATEFUSESUSING Figure 103 and Figure 104.
3.
2EMOVEANDINSPECTTHEFUSES)TEMA
Figure 103 or Item
b, Figure 104).
4. )FNECESSARYREPLACETHEFUSES
a.
#ONTROLCIRCUITFUSEISA6!#AMPRATED
FUSE,ITTELFUSE0
b.
4HERMOSTATRELAYCIRCUITFUSEISA6OLTM!
RATEDFUSE,ITTELFUSE4YPEXMM
$ONOTJUMPERFUSESORREPLACEWITHANYFUSE
except as specified. Failure to comply could
result in severe personal injury, death or sub-
stantial property damage.
Checking temperature sensors
1. The boiler temperature sensors (flue, outdoor, return
water and supply water) are all resistance-type devices.
Figure 105
SHOWS THE CORRECT VALUE FOR THE SENSOR AT
various temperatures. For dual sensors, the temperature
DIFFERENCEBETWEENTHESENSORSMUSTBENOMORETHAN
10 °F. (Supply outlet 200 sensor).
2. Use the resistance values at 32°F, 60°F, 70°F and 212°F
to measure the sensor resistance at known tempera-
tures (ice point, room temperature and sea level boil-
ing point). For ice point and boiling point, insert the
sensor in water at that temperature. Use an ohmmeter
to read resistance value.
3. To check whether the FreeStyle ™ control is correctly sensing
temperature, you can use a resistance decade box. Connect the
DECADEBOXTEMPORARILYINPLACEOFASENSORANDREADTHECOR
-
responding temperature on the FreeStyle ™ control display. The
temperature should be close to the value corresponding to the
input resistance.
Figure 103 #ONTROLCIRCUITFUSELOCATION
Figure 104
4HERMOSTATRELAYCIRCUITFUSELOCATION
Figure 105 3ENSORRESISTANCESVALUES
Installer/homeowner note,
INCASEOFANhOPENCIRCUITv
OFTHE4HERMOSTATRELAY
FUSETHEBOILERCANRUNIN
DHW mode but NOT in
Central Heating mode.
Fuse located on rear of circuit board
a
b