72
B
.
OIL PRIMARY CONTROL (Oil Primary)
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details.
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NOTICE
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oil valve actuation (known as Trial For Ignition
[TFI]) lockout will occur. Lockout is indicated
by a red LED solid-on located on the oil primary
control.
Hard Lockout will occur if the Oil Primary
Control locks-out three (3) times during a call
for heat. This is indicated by red light reset
button solid-on.
C. INTELLIGENT OIL BOILER CONTROL
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is used on Boilers
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Warm Start Boiler Control
is used on Boilers
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(UU
IS NOT
displayed on the
Boiler Control
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System Condition
Diagnostic Condition
Check
Action
Boiler is cold, house is
cold.
Display is OFF.
120 Vac System power.
Turn system power on.
Display is ON.
24 Vac T-T
No 24 V; replace control.
24 V present; disconnect
thermostat, short T-T.
Boiler starts, check wiring and thermostat.
120 Vac at B1-B2
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Refer to
Err
on display.
-----
Boiler is hot, house is
cold.
Display is ON.
120 Vac at C1-C2
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to pump.
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trapped air or closed zone valves
Boiler below the Low Limit
temperature, wait for boiler to go
above Low Limit temperature.
-----
Boiler above LL? If yes, check
for 120 Vac between ZC and L2.
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and wiring.
TABLE 10: TROUBLESHOOTING GUIDE
SECTION XV: TROUBLESHOOTING (continued)
Содержание V8H3
Страница 76: ...76 Bare Boiler Assembly Continued SECTION XVI REPAIR PARTS continued...
Страница 78: ...78 Jacket Assembly SECTION XVI REPAIR PARTS continued...
Страница 80: ...80 V8H3 Thru V8H9 Steam Boilers Trim and Controls SECTION XVI REPAIR PARTS continued...
Страница 82: ...82 V8H3 Thru V8H9 Water Boilers Trim and Controls SECTION XVI REPAIR PARTS continued...
Страница 84: ...84 Beckett AFG Burner SECTION XVI REPAIR PARTS continued...
Страница 94: ...94 SERVICE RECORD DATE SERVICE PERFORMED...
Страница 95: ...95 SERVICE RECORD DATE SERVICE PERFORMED...
Страница 96: ...96 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net...