Static Checkout; Equipment Recommended; General Instructions - Honeywell 7800 Series Installation Instructions Manual

STATIC CHECKOUT

After checking all wiring, perform this checkout before
installing the RM7898 on the subbase. These tests verify
the Q7800 Wiring Subbase is wired correctly, and the
external controllers, limits, interlocks, actuators, valves,
transformers, motors and other devices are operating
properly.
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury
or death.
Close all manual fuel shutoff valve(s) before
starting these tests.
Use extreme care while testing the system. Line
voltage is present on most terminal connections
when power is on.
Ensure proper selection of configuration jumpers before
starting the burner operation.
CAUTION
Electrical Hazard.
Can cause equipment damage or failure.
Do not perform a dielectric test with the relay module
installed. Internal surge protectors can break down,
allowing relay module to fail the dielectric test and
destroy the internal lightning and high current
protection.
1. Open the master switch before installing or remov-
ing a jumper on the subbase.
2. Before continuing to the next test, be sure to remove
the test jumper(s) used in the previous test.
RM7898A 7800 SERIES VALVE PROVING PRIMARY RELAY MODULES
3. Replace all limits and interlocks that are not operat-
ing properly. Do not bypass limits and interlocks.

Equipment Recommended

1. Voltmeter (1M ohm/volt minimum sensitivity) set on
the 0 to 300 Vac scale.
2. Two jumper wires, no. 14 wire, insulated, 12 in.
(304.8 mm) long with insulated alligator clips at
both ends.

General Instructions

1. Perform all applicable tests listed in Static Checkout,
Table 6 on page 12, in the order listed.
2. Make sure all manual fuel shutoff valve(s) are
closed.
3. For each test, open the master switch and install the
jumper wire(s) between the subbase wiring termi-
nals listed in the Test Jumpers column.
4. Close the master switch before observing operation.
5. Read the voltage between the subbase wiring termi-
nals listed in the Voltmeter column.
6. If there is no voltage or the operation is abnormal,
check the circuits and external devices as described
in the last column.
7. Check all wiring for correct connections, tight termi-
nal screws, correct wire, and proper wiring tech-
niques. Replace all damaged or incorrectly sized
wires.
8. Replace faulty controllers, limits, interlocks, actua-
tors, valves, transformers, motors and other devices,
as required.
9. Make sure normal operation is obtained for each
required test before continuing the checkout.
10. After completing each test, be sure to open the
master power switch and remove the test jumper(s)
before proceeding to the next test.
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