Static Checkout - Honeywell 7800 Series Manual

RM7888A
OPERATION • STATIC CHECKOUT
EXPANDED ANNUNCIATOR MESSAGES
(TABLE 9)
The Expanded Annunciator (EA) may or may not be
connected because it is an optional device. If the EA is not
connected, a display message of "(EA not connected)" will
Selectable Message (Second Line)
Expanded Annun.
Expanded Annunciator (EA not connected)<
Current Status (CS:)±
Valve Closure (Valve Close)
Burner Switch (Burner Sw.)
Auxiliary Limit (Aux Limit 1)
Low Water Cutoff (LWCO)
High Limit (High Limit)
Auxiliary Limit (AuxLimit 3)
Oil Selection Switch (Oil Select)
High Oil Pressure Switch (Hi OilPres)
Low Oil Pressure Switch (LowOilPres)
High Oil Temperature Switch (Hi OilTemp)
Low Oil Temperature Switch (LowOilTemp)
Atomizing Switch (Atomize Sw)
Gas Selection Switch (Gas Select)
High Gas Pressure Switch (Hi GasPres)
Low Gas Pressure Switch (LowGasPres)
Airflow Switch (Airflow Sw)
Auxiliary Interlock (Aux ILK 4)
Auxiliary Interlock (Aux ILK 5)
EA Fault Code
Software Revision (SW Rev.)
CAUTION
1. Use extreme care while testing the system. Line
voltage is present on most terminal connections
when power is on.
2. Open the master switch before installing or
removing a jumper on the subbase.
3. Before continuing to the next test, be sure to
remove the test jumper(s) used in the previous
tests.
4. Replace all limits and interlocks not operating
properly. Do not bypass limits and interlocks.
5. Close all manual fuel shutoff valve(s) before
starting these tests.
65-0175
be shown. If the EA is connected, display messages will be
shown (see Table 4, 14 or 15) for fault codes. When
accessing Expanded Annunciator Messages, follow the
same operations as used with the Selectable Messages.
TABLE 9—EXPANDED ANNUNCIATOR.
Display Value (Second Line)
EA Message<
T4
T5
T7
T9
T10
T11
T12
T13
T14
T15
T16
T19
T17
T18
T19
T20
T21
T22
nnn<
nnnn<
installing the RM7888A on the subbase. These tests veri-
fies that the Q7800 Wiring Subbase is wired correctly, and
that the external controllers, limits, interlocks, actuators,
valves, transformers, motors and other devices are operat-
ing properly.
NOTE: Do not perform a dielectric test with the RM7888A
EQUIPMENT RECOMMENDED
34
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<
ON or OFF<

Static Checkout

After checking all wiring, perform this checkout before
installed. Internal surge protectors will break down and
conduct a current. This could cause the RM7888A to fail
the dielectric test or possibly destroy the internal light-
ning and high current protection.
• Voltmeter (20 kohm/volt minimum sensitivity) set
on the 0-300 Vac scale.
• Two jumper wires; no. 14 wire, insulated, 12 inches
(304.8 mm) long, with insulated alligator clips at both
ends.
First Line Message
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA
↓EA