General Instructions - Honeywell RM7895A1014 Installation Instructions Manual

7800 series relay modules
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STATIC CHECKOUT
After checking all wiring, perform this checkout before
installing the
EC7895A,C/RM7895A,B,C,D/RM7896A,B,C,D 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.
3. Replace all limits and interlocks that are not operat-
ing properly. Do not bypass limits and interlocks.
Relay
Test
Module
Number
Model
Jumpers
1
All
None
2
All
None
3
All
4-5
4
All
5-10
RM7895A,B,C,D/EC7895A,C; RM7896A,C,D 7800 SERIES RELAY MODULES
Table 6. Static Checkout.
Test
Voltmeter
5-L2
Line voltage at terminal 5.
6-L2
Line voltage at terminal 6.
7-L2
1. Burner motor (fan or blower)
starts.
2. Line voltage at terminal 7
within 10 seconds.
1. Ignition spark (if ignition
transformer is connected to
terminal 10).
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, 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 mas-
ter power switch and remove the test jumper(s)
before proceeding to the next test.
WARNING
Explosion hazard.
Can cause serious injury or death.
Be sure all manual fuel shutoff valves are closed.
Normal Operation
9
If Operation is Abnormal,
Check Items Listed Below
1. Master switch.
2. Power connected to master switch.
3. Overload protection (fuse, circuit
breaker,
etc.) has not opened power line.
1. Limits.
2. Burner controller.
1. Burner motor circuit.
a. Manual switch of burner motor.
b. Burner motor power supply,
overload
protection and starter.
c. Burner motor.
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
32-00156—01

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