Honeywell 7800 SERIES Product Data page 14

7800 SERIES S7830 EXPANDED ANNUNCIATOR
Table 5. Expanded Annunciator Current Status Messages (Continued)
Message
FuelSelectOff
BothFuelSelect
High Oil Pres.
Low Oil Pres.
Low Oil Temp.
Atomizing Sw.
High Gas Pres.
Low Gas Pres.
Airflow Sw.
Aux. ILK # 4
Aux. ILK # 5
a
Displayed message can be changed using the S7800A1142 Keyboard Display Module.
CHECKOUT
Several basic steps can be take to check proper operation of
the S7830.
1. Depress and hold the Select keypad for five seconds.
All 25 LED (Exclusive of the Power LED) should light.
2. Through the S7800 Keyboard Display Module, access
the S7830 Expanded Annunciator Informational Index. If
the S7830 is operating properly, it should be possible to
access the status of all switched points.
3. Open equipment control, limits, and interlock inputs.
The S7830 LED array and S7800 Keyboard Display
Module should indicate the cause of the burner lockout
and switch point status.
65-0101—03
Fuel Select switch is off.
Both fuel select inputs are on.
High Oil Pressure
Low Oil Pressure
Low Oil Temperature
Atomizing Switch
High Gas Pressure
Low Gas Pressure
Airflow Switch
Auxiliary Interlock # 4
Auxiliary Interlock # 5
Description
IMPORTANT
Restore ALL controls, limits and interlock inputs,
altered in step 3, to proper operation. DO NOT
PLACE JUMPER WIRES ACROSS THE
INSTALLATION CONTROLS, LIMITS AND
INTERLOCKS.
4. If improper operation is identified, check all S7830
wiring against Fig. 3 and correct any errors. If problems
persist, reset the S7830. If problems continue to persist,
replace the S7830 Expanded Annunciator.
NOTE: The S7830 is a monitoring device. If wired correctly,
the S7830 will not shut the system down.
The S7830 can be removed from the wiring subbase
and the equipment should operate in a normal man-
ner and shutdown if limit or interlock were to open.
14
a
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