Engineered air EngA M-TRAC1, Руководство пользователя

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A
M-TRAC1
IOM-55 May 2019 17
M-TRAC1 LOCK OUT DESCRIPTION
Table 8
LED Code Reasons
B Irregular
Faulty flame relay or wiring error. Ignition control and safety shut off valve
should be off (FR and CFR contact ‘open’, but receiving power to VFB120
indicating valve is still on.
Faulty flame relay or wiring error. FR and CFR contacts closes, but feedback
from safety shut off valve to VFB120 happening too fast.
B Slow High limit open.
C Irregular
Air sensor self test. When the blower is off, the sensor reading should be below
0.7 Vdc.
Then the fan turns on, the air sensor reading should increase,
C Fast Very low air flow. Sensed air flow is below 40%.
C Slow Low air flow. Sensed air flow is below 60%.
C On High air flow. Sensed air flow is over 120%.
D Fast Ignition failure.
E Irregular
Open discharge air sensor. Sensor resistance should not exceed 1940, or 3450 Ω
for dual sensors.
E Fast Low limit. Discharge temperature has fallen below 40°F (4°C).
SENSOR TABLE
Sensor Resistance Chart for TE 6100-960 and TE600EA3.
Table 9
˚C ˚F Resistance Ω ˚C ˚F Resistance Ω ˚C ˚F Resistance Ω
-40 -40 597 4.4 40 877 48.9 120 1229
-34.4 -30 629 10 50 916 54.4 130 1279
-28.9 -20 661 15.6 60 958 60 140 1329
-23.3 -10 694 21.1 70 1000 65.6 150 1381
-17.8 0 728 26.7 80 1043 71.1 160 1433
-12.2 10 763 32.2 90 1088 76.7 170 1487
-6.6 20 800 37.8 100 1134 82.2 180 1542
-1.1 30 838 43.3 110 1181 87.8 190 1599
Note: Reference resistance is 1035 ohms at 77˚F. Resistance tolerances are ±0.05 to 0.15% at 77˚F.