• CHECK FOR BLOCKED VENT
• CHECK AIR PROVING SWITCH (CLOSED)
• CHECK WIRING TO IGNITER
• CHECK FOR 60 TO 90VAC AT IGNITER,
TERMINALS AND AT (IFC) TERMINALS
39
FIGURE 34
INTEGRATED FURNACE CONTROL (IFC) WHITE RODGERS 50A62-101
(SILICON-NITRIDE IGNITER)
1. SET FAN SWITCH TO AUTO
2. SET THERMOSTAT TO CALL
FOR HEAT
START
NO
NO
YES
YES
YES
YES
YES
NO
INDUCED DRAFT BLOWER
MOTOR STARTS
THE IFC WILL
PERFORM A SELF-
TEST OF THE IGNITER
AND DRAFT MOTOR
CIRCUIT. IF THERE IS
AN IGNITER FAULT,
BAD CONNECTION TO
THE IGNITER, OR A
BAD GROUND
CONNECTION, THE
DRAFT MOTOR WILL
STOP AFTER A FEW
SECONDS AND LOCK-
OUT.
YES
NO
PRE-PURGE CONTINUES
IGNITER WARMS UP
AND GLOWS RED
20 SECONDS WARMUP
YES
10 SEC. PREPURGE
REPLACE (IFC)
NO
REPLACE SWITCH
NO
REPLACE (IFC)
IF WIRING TO
DRAFT MOTOR IS OK
NO
REPLACE SWITCH
NO
REPLACE (IFC)
IF WIRING TO
IGNITER IS OK
NO
CHECK THERMOSTAT
WIRING
• CHECK LINE VOLTAGE POWER
• CHECK LOW VOLTAGE TRANSFORMER
WHITE-RODGERS 50A62-101
INTEGRATED FURNACE CONTROL (IFC)
TROUBLESHOOTING GUIDE
(SILICON-NITRIDE IGNITER)
POWER LED ON
IF THE PRESSURE SWITCH DOESN’T
CLOSE WITHIN 60 SEC. THE IOM WILL
STOP FOR 5 MIN. AND RETRY
• REMOVE (IFC) COVER, CHECK LIGHTS
MICROPROCESSOR STATUS “OK” LED ON
NOTE: “OK” LED WILL FLASH TO INDICATE
TWINNING CIRCUIT FAULTS
• CHECK FOR 115VAC TO DRAFT MOTOR
REPLACE IOM MOTOR
CHECK FOR 24 VAC FROM
“W” TO “C” ON IFC
• CHECK LIMITS, (CLOSED)
• CHECK WIRING
• CHECK PRESSURE SWITCH, (OPEN)
YES
REPLACE IGNITER
NOTE:
STATIC DISCHARGE CAN DAMAGE INTEGRATED FURNACE CONTROL (IFC)
W
ARNING
DISCONNECT POWER BEFORE
SERVICING.
SERVICE MUST BE BY A TRAINED,
QUALIFIED SERVICE TECHNICIAN.
HAZARDOUS VOLTAGE
LINE VOLTAGE
CONNECTIONS
Содержание RGDG
Страница 22: ...22 I400 FIGURE 19 HONEYWELL NO S9201E2001 CONTROL BOARD TWINNING CONNECTION SINGLE STAGE OPERATION...
Страница 23: ...23 FIGURE 20 HONEYWELL NO S9201E2001 CONTROL BOARD TWINNING CONNECTION TWO STAGE OPERATION I400...
Страница 30: ...30 BLOWER PERFORMANCE DATA RGDG RGPH UPFLOW HORIZONTAL MODELS BLOWER PERFORMANCE DATA RGLH DOWNFLOW MODELS...
Страница 31: ...31 BLOWER PERFORMANCE DATA RGVH HORIZONTAL MODELS BLOWER PERFORMANCE DATA RGDJ RGPJ UPFLOW HORIZONTAL MODELS...
Страница 32: ...32 BLOWER PERFORMANCE DATA RGLJ DOWNFLOW MODELS ONLY BLOWER PERFORMANCE DATA RGVJ HORIZONTAL MODELS...
Страница 35: ...35 FIGURE 31 FILTER RETAINING RODS SIDE RETURN FIGURE 32 DOWNFLOW FILTER INSTALLATION...
Страница 43: ...FIGURE 36 FOR MODELS WITH UTEC 1012 920 OR HONEYWELL S9201E2001 INTEGRATED FURNACE CONTROL 43...
Страница 44: ...44 FIGURE 37 FOR MODELS WITH WHITE RODGERS 50A62 101 INTEGRATED FURNACE CONTROL...
Страница 45: ...45 FIGURE 38 FOR MODELS WITH UTEC 1012 925 INTEGRATED FURNACE CONTROL...
Страница 46: ...46...
Страница 47: ...47...
Страница 48: ...48 CM 398 Rheem Manufacturing Company Air Conditioning Division Fort Smith Arkansas...