© 2020 Carrier
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Example:
Assume that after selecting the best BAND settings, the flame signals are as shown in Table
1. Assume that the Flame Relay ON threshold is 40 and the OFF is 20:
Table 1
Target Burner
Status
Flame Signal
(0 – 999)
Flame Quality (FQ)
(0 – 100)
Flame Relay
Status
Burner ON
340
100
Energized
Burner OFF
50
50
Energized
In Table 1, the background flame signal (Target Burner OFF) is too high and is preventing the Flame
Relay from de-energizing. The User Gains should be reduced to drop the Flame Quality number
below the Flame Relay Flame OFF Threshold of 20.
Table 2
Table 2 shows the results of lowering each User Gain setting by 4 steps (e.g. from User Gain=23 to
User Gain=19):
Flame Relay Thresholds
The flame relay has a factory programmed FLAME ON threshold of 40, and a FLAME OFF thresh-
old of 20 (0-100 scale). With these settings, it is recommended that the flame ON signal normally be
at least 150. Other on and off thresholds may be selected to suit particular applications.
CAUTION: After selecting Sensor BANDS, Sensor GAINS, and Flame Relay ON & OFF
Thresholds, proper flame detection and flame discrimination must be verified by starting
and stopping the burner several times. The flame relay must reliably de- energize for all flame
out conditions. This testing m u s t be done with various adjacent burners on and off, and
at various load levels. This is a requirement for proper operation.
Target Burner
Status
Flame Signal
(0 – 999)
Flame Quality (FQ)
(0 – 100)
Flame Relay
Status
Burner ON
160
100
Energized
Burner OFF
10
10
De-energized
Summary of Contents for InSight 4 Series
Page 19: ... 2020 Carrier 19 Figure 14 WIRING DIAGRAM 95UVS4 1 95IRS4 1 with 59 547 cable ...
Page 27: ... 2020 Carrier 27 THE MAIN STATUS MENU FIGURE 20 MAIN STATUS MENU LOOP ...
Page 36: ... 2020 Carrier 36 THE CONFIG MENU FIGURE 23 CONFIG MENU LOOP ...
Page 40: ... 2020 Carrier 40 THE AUTO CONFIG MENU FIGURE 25 AUTO CONFIG MENU LOOP ...
Page 43: ... 2020 Carrier 43 THE FILE COPY MENU FIGURE 26 FILE COPY MENU LOOP ...
Page 45: ... 2020 Carrier 45 THE 4 20 mA MENU FIGURE 27 4 20mA MENU LOOP ...
Page 47: ... 2020 Carrier 47 THE DATE TIME MENU FIGURE 28 DATE TIME MENU LOOP ...
Page 49: ... 2020 Carrier 49 THE COMMS MENU FIGURE 29 COMMS MENU ...
Page 51: ... 2020 Carrier 51 THE MANUAL CONFIG MENUS FIGURE 30 ...
Page 52: ... 2020 Carrier 52 MANUAL CONFIG MENUS continued FIGURE 31 ...