Honeywell RM7800L1087 - Page 24

RELAY MODULES WITH VALVE PROVING
32-00142—01 24
* An ammeter can be used to verify the proper connected loads.
5 All 4-5 7-L2 1. Burner motor (fan or blower)
starts.
2. Line voltage at Terminal 7
within 10 seconds.
1. Burner motor circuit.
a. Manual switch of burner motor.
b. Burner motor power supply,
overload protection, and starter.
c. Burner motor.
2. Running or Lockout Interlocks
(including Airflow Switch).
6 All 4-10 * — Ignition spark (if ignition
transformer is connected to
Terminal 10)
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is okay.
7 All 4-8 * — 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.
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.
8 All 4-21 * — Same as test no. 6 for
connections to Terminal 8. If
using direct spark ignition, check
the first stage fuel valve(s)
instead of the pilot valve or MV2
for VP tests.
Same as test no. 6. If using direct spark
ignition, check the first stage fuel
valve(s) instead of the pilot valve.
9 All 4-9 * — Automatic main fuel valve(s)
open.
If using direct spark ignition on a
model with intermittent pilot on
Terminal 21, check the optional
second stage fuel valve, if used.
1. Listen for and observe operation of
the main fuel valve(s) and actuator(s).
2. Valve(s) and actuator(s).
10 All 4-3 — Alarm (if used) turns on. 1. Alarm.
11 All 4-5
and
12-13
18-L2 Firing rate motor drives open;
zero volts at Terminal 18 after
motor starts driving open.
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
12 All 4-5
and
14-13
18-L2 Firing rate motor drives closed;
line voltage at Terminal 18 after
motor is in Low Fire position.
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
13 RM7800L;
RM7840L;
EC7840L
4-5
and
12-13
19-L2 Firing rate motor drives open;
line voltage at Terminal 19 after
motor is in High Fire position.
1. High Fire Purge Switch.
2. Firing rate motor and transformer.
14 RM7800L;
RM7840L;
EC7840L
4-5
and
14-13
19-L2 Firing rate motor drives closed;
zero volts at Terminal 19 after
motor starts driving closed.
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
15 All 15-13 — 1. Raise setpoint of Series 90
controller—firing rate motor
should drive toward open.
2. Lower setpoint of Series 90
controller—firing rate motor
should drive toward closed.
1. Series 90 Controller.
2. Firing rate motor and transformer.
Final All
CAUTION
Equipment Damage Hazard.
Improper wiring can damage equipment.
On completing these tests, open the master switch and remove all test jumpers from the
subbase terminal. Also remove bypass jumpers from the low fuel pressure limits (if used) to
prevent equipment damage.
Table 9. Static Checkout. (Continued)
Test
No.
RM7800/RM
7840/EC784
0 Models
Test
Jumpers Voltmeter Normal Operation
If Operation is Abnormal,
Check the Items Listed Below