Honeywell EC7830A Installation Instructions Manual page 12

EC7830, RM7830A,EC7850A,RM7850A 7800 SERIES RELAY MODULES
Test No. Test Jumpers
9 5-21
10 5-9
Final
CAUTION
Electrical Hazard.
Can cause equipment damage.
After completing these tests, open the master switch and remove all test jumpers from the subbase
terminals. Then remove bypass jumpers from the low fuel pressure limits (if used).
Test Test
No. Jumpers Voltmeter
1 None 4-2
2 None 17-2

3 4-16
NOTE: Disconnect horn at this time (if used).
4 4-16 2-20
5 4-16 2-6
6 4-16 2-7
5-4
NOTE: Remove jumpers and re-connect alarm (if used).

7 4-10

8 4-8

9 4-21

10 4-9
11 12-13 18-L2
12 12-13 19-L2
66-1092—2
Table 4. EC/RM7830A Static Checkout (continued)
Voltmeter Normal Operation

Same as test no. 8 for connections
to terminal 8. If using direct spark
ignition, check the first stage fuel
valve(s) instead of the pilot valve.

Automatic main fuel valve(s)
open(s).
If using direct spark ignition on a
model with intermittent pilot on
terminal 21, check the optional
second stage fuel valve, if used.
Table 5. EC/RM 7850A Static Checkout.
Normal Operation
Line voltage at terminal 4.
Line voltage at terminal 17.
Alarm (if used) turns on.
Line voltage at terminal 20.
Line voltage at terminal 6.
1. Fan (Burner Motor or Blower) starts.
2. Line voltage at terminal 7.
Ignition spark (if ignition transformer is
connected to terminal 10).
1. Ignition spark (if ignition transformer is
connected to terminal 8).
2. Automatic pilot valve opens (if connected
to terminal 8).
NOTE: Refer to wiring diagram of system
being tested.
Same as test no. 4 for connections to terminal
8. If using direct spark ignition, check the first
stage fuel valve(s) instead of the pilot valve.
Automatic main fuel valve(s) opens.
If using direct spark ignition on a model
with intermittent pilot on terminal 21, check the
optional second stage fuel valve, if used.
Voltmeter reads line voltage, then zero volts on
terminal 18 after motor starts driving open.
Firing rate motor drives open; line voltage at
terminal 19 after motor is in High Fire position.
Same as test no. 8. If using direct
spark ignition, check the first stage
fuel valve(s) instead of the pilot valve.
1.
2.
1. Master switch.
2. Power connected to the master switch.
3. Overload protection (fuse, circuit breaker, etc.)
did not open the power line.
Preignition interlocks.
Alarm
Limits in Lockout Circuit
1. Recycle limits.
2. Burner control.
1. Fan circuit.
a. Manual fan switch.
b. Fan power supply, overload protection and
starter.
c. Fan.
2. Running limits of Airflow Switch (LD2 input).
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
2. Listen for click or feel head of valve for
activation.
a. Actuator if used.
b. Pilot valve.
Same as test no. 4. If using direct spark ignition,
check the first stage fuel valve(s) instead of the
pilot valve.
1. Listen for and observe operation of the main
fuel valve(s) and actuator(s).
2. Valve(s) and actuator(s).
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
1. High Fire Purge Switch.
2. Firing rate motor and transformer.
12
If Operation is Abnormal ,
Check the Items Listed Below
Listen for and observe operation
of the main fuel valve(s) and
actuator(s).
Valve(s) and actuator(s).
If Operation is Abnormal,
Check These Items
(continued)