White Rodgers 1F85-277 Guía para resolver problemas Pagina 83
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TECHNICAL
HELP
50E47-843 OPERATION
& TROUBLESHOOTING
OPERATION
In a typical application the 50E47-843 is designed to energize the ignitor and gas valve and monitor the flame sensor. It is
a 100% shut off design that locks out the gas valve if the burner does not light within the trial for ignition period. The ignition
sequence begins with a call for heat from the room thermostat. The thermostat applies power to the control. After pre-purge
interval, the ignitor warms up for the selected time. The control energizes the gas valve for the selected trial for ignition period.
If the burner lights within the allowed period the gas valve will remain open until the call for heat is satisfied. During the trial
for ignition period the ignitor is turned off. If the burner does not light, the control will either go into lockout or make two more
ignition retries depending on the options selected. The control can be reset from lockout by cycling the thermostat to remove
power for a minimum of 3 seconds. It includes a system analysis / troubleshooting LED that indicates normal operation, lock-
out, weak flame signal or internal control fault.
TROUBLESHOOTING
For proper control operation, the control must be electrically connected to the gas valve and all the ignitor wiring connectors
plugged in. Gas valves with an electric “ON/OFF” switch must have the switch set to “ON”.
The light on the control provides a self-diagnosis indication. If the red light on the module is on continuously, the fault is likely
to be internal to the module. To make sure, interrupt the line or 24 volt thermostat power for a few seconds and then restore. If
the internal fault is indicated again, and flame sensor is not shorted to ground, replace the control. A flashing light indicates the
problem is most likely in the external components or wiring (see chart below). Proceed as follows:
Three visual checks
1) The ignitor will warm up and glow red
2) The main burner flame will ignite
3) The main burner flame will continue to burn after the ignitor is turned off
Troubleshooting the system consists of checking for these three visual indications. The chart on the next page defines the
proper action if any of these indications do not occur.
LED Condition
Green Normal
Solid On
Green Weak flame signal
Rapid Flashing
Red Control in lockout
Rapid Flash Flame sensed when
there should be none
Red Control in lockout
1 Flash Ignition retries exceeded
Red Control in lockout
2 Flash Ignition recycles exceeded
Yellow Internal self check
Solid On
Yellow Improper Polarity
Rapid Flashing
OFF Internal Failure
Red Gas valve miswired or
Solid On Internal error detected
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TECHNICAL HELP
- TECHNICAL HELPINDEX 1
- INDEXTECHNICAL HELP 2
- TYPICAL WIRING1F97-1277 3
- 1F97-1277CONFIGURATION 4
- 1F95-1280CONFIGURATION 6
- 1F95-1291CONFIGURATION 8
- Heat Pump Connections 9
- Heat Pump Systems 9
- 1F95-1277CONFIGURATION 10
- (limited temperature range) 10
- INSTALLER/CONFIGURATION MENU 10
- Remote Sensor Terminals 11
- 1F97-0671CONFIGURATION 12
- TYPICAL WIRING1F95EZ-0671 13
- 1F95EZ-0671 14
- AND CONFIGURATION 14
- TYPICAL WIRING1F95-0671 15
- AND CONFIGURATION 1F95-0671 16
- CONFIGURATION1F95-0671 17
- TYPICAL WIRING 1F95-0680 18
- AND CONFIGURATION1F95-0680 19
- AND CONFIGURATION 1F95-0680 20
- 1F80-0471/1F86-0471 21
- CONFIGURATION AND 21
- TERMINAL OUTPUTS 21
- TYPICAL WIRING DIAGRAMS 22
- 1F83-0471/1F85-0471 23
- CONFIGURATION 24
- 1F83-0422/1F85-0422 24
- * Common connection 25
- TYPICAL WIRING1F85-0477 27
- 1F85-0477 28
- CONFIGURATION1F85-0477 29
- 1F80-0224/1F86-0244 30
- 1F80-0261/1F87-0261 30
- TAPE OFF! 32
- CONFIGURATION MENU 33
- 1F82-261 / 1F89-211 35
- 1E78-151 37
- 1F72-151 38
- 1F79-111 38
- WIRING AND 41
- CONFIGURATION1E65-144 41
- 2 Wire Installation 41
- 4 Wire Installation 41
- Troubleshooting Chart 43
- To + or S1 44
- To S or S2 44
- To - or S3 44
- + Terminals 45
- - Terminals 45
- EVAPORATIVE 46
- HEATING TECH HELP INDEX 47
- MAIN VALVE RELAY 48
- TH PGTH-PG 48
- REDUNDANT PILOT/VALVE 50
- ELECTRICAL SCHEMATIC 51
- 36E WIRING 52
- INFORMATION 52
- FURNACE CONTROLS 55
- 21M51U-843 WIRING 55
- INTEGRATED 55
- OPTION SWITCHES 57
- HEAT MODE 57
- DIAGNOSTIC TABLE 59
- 21M51U-843 59
- 50V51-843 60
- 21V51U-843 65
- FAULT INDEX CHART 66
- 1E1D1C 1F 67
- 1I1H1G 1J 1K 67
- 50A55-843 72
- 50A62-820 75
- 50A65-843 78
- L2 must be grounded 81
- LED Condition 83
- 50D50-842 WIRING 85
- 50D50-843 WIRING 85
- SYSTEM LOCKOUT AND 88
- DIAGNOSTIC FEATURES 88
- FAULT RECALL 89
- FAULT CODE RESET 89
- SILENT OPERATOR CONTROL 90
- BOARD MOUNT 91
- LIMIT CONTROLS 91
- 3L09 OUTLINE 91
- Figure 4 92
- Figure 3 92
- Wiring Instruction Notes 94
- 16E09-101 95
- USER MENU 95
- USER MENU / OPERATION 96
- SPECIAL 97
- TRANSFORMERS AND RELAYS 99
- TECHNICAL HELP 100
- WIRING DIAGRAMS 8A04-1 101
- 8A04-1 Typical Wiring 101
- 1311 Three Wire Zone Valve 102
- 1361 Two Wire Zone Valve 103
- TECH HELP INDEX 104
- INDOOR AIR QUALITY / 104
- ZONING SYSTEMS 104
- SIZING AND OZONE 105
- WHAT AIR CLEANERS DO 106
- AND HOW THEY WORK 106
- PARTS VIEW DIAGRAM 107
- COMFORTPRO 109
- AIR CLEANERS 109
- PARTS LIST 109
- AIR CLEANER 110
- PROGRAMMING OPTIONS 110
- TYPICAL WIRING 112
- DIAGRAMS 112
- REPLACEMENT 113
- HFT2900FP 116
- ZONING SYSTEM DESIGN 117
- MINIMUM POSITION DAMPER 118
- ZONING HEAT PUMPS 118
- ZONING COMMERCIAL SYSTEMS 119
- ZONING versus MULTIPLE UNITS 119
- 78123456 121
- WIRING DIAGRAM 4 – 122
- OPERATION AND WIRING 123
- Leading Air Sensor 123
- CZ-4/CAZ-2 ADDING ZONES 124
- AND TROUBLESHOOTING 124
- INSTALLATION 125
- OPERATION 125
- ZONE PANEL 126
- LEAVING AIR SENSOR (CLAS) 127
- TROUBLESHOOTING 127
- CMM-3UKZONE PANEL 128
- CMM-3U WIRING DIAGRAM 132
- BAROMETRIC RELIEF DAMPERS 133
- LOCATION 133
- CRDS ROUND 134
- SPRING RETURN DAMPERS 134
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