Static Checkout - Honeywell 7800 Series Operating Instructions Manual

3.6 Final Wiring Check
1 Check the power supply circuit. The voltage and frequency
tolerance must match those of the RM/EC7890. A separate
power supply circuit can be required for the RM/EC7890. Add
the required disconnect means and overload protection.
2 Check all wiring circuits and complete the Static Checkout (see
page 7 (4.2.1 Table 5. Static Checkout.)) before installing
the RM/EC7890 on the subbase.
3 Install the relay module.
4 Restore the panel power.

4 stAtIC CHeCKoUt

After checking all wiring, perform this checkout before installing
the RM/EC7890 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
Explosion Hazard.
Can cause serious injury, death or equipment damage.
1 Close all manual fuel shutoff valve(s) before starting these tests.
2 Use extreme care while testing the system. Line voltage is
present on most terminal connections when power is on.
3 Open the master switch before installing or removing a jumper
on the subbase.
4 Before continuing to the next test, be sure to remove test
jumper(s) used in the previous test.
5 Replace all limits and interlocks that are not operating properly.
Do not bypass limits and interlocks.
CAUtIon
Equipment Damage Hazard.
Can cause equipment damage or equipment failure.
– Do not perform a dielectric test with the RM/EC7890 installed.
Internal surge protectors break down and conduct a current,
causing the RM/EC7890 to fail the dielectric test or possibly
destroy the internal lightning and high current protection.
4.1 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. Note that an
ammeter can be used in place of a jumper to confirm current
draw of loads. (ignition, pilot valve and main valve).
4.2 General Instructions
1 Perform all applicable tests listed in the Static Checkout (see
page 11 (7.1.2 Table 6. Site-Configurable Jumper Options.)),
in the order listed.
2 Make sure all manual fuel shutoff valves are closed.
3 For each test, open the master switch and install the jumper
wires between the subbase wiring terminals listed in the Test
Jumpers column.
4 Close the master switch before observing the operation.
5 Read the voltage between the subbase wiring terminals 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 proper connections, tight terminal screws,
and appropriate wire and wiring techniques.
8 Replace all damaged or incorrectly sized wires.
9 Replace faulty controllers, limits, interlocks, actuators, valves,
transformers, motors and other devices, as required.
10 Make sure normal operation is obtained for each required test
before continuing the checkout.
11 After completing each test, be sure to remove the test jump-
er(s).
WARnInG
Explosion Hazard.
Can cause serious injury or death.
– Be sure all manual fuel shutoff valves are closed.
IMPoRtAnt
Low fuel pressure limits, if used, could be open. Bypass them
with jumpers for the remaining static tests (if required).
EN-6