R4140G, L AND M FLAME SAFEGUARD PROGRAMMING CONTROLS
60-0770—2
5
Table 2. Static Tests of External Devices
(Continued).
(Continued)
Test
No.
R4140
Models
Test
Jumpers Voltmeter
Normal
Operation
If Operation is Abnormal,
Check the Items Listed Below
3 Models with
Preignition
Interlocks
None 16-L2 Line voltage at terminal 16. 1. Preignition interlocks are closed. If open,
determine cause(s) and correct the
condition(s).
Models with
Start
Interlocks
None 4-L2 Line voltage at terminal 4. 1. Start interlock(s), if used, is closed. If open,
determine cause(s) and correct the
condition(s).
2. If start interlock(s) is not used, jumper is
installed between terminals 4 and 16.
4 All models L1-8 3-L2 1. Burner motor (fan or blower)
starts.
2. Line voltage at terminal 3
within 12 seconds.
1. Burner motor circuit:
a. Manual switch of burner motor is closed.
b. Burner motor power supply, overload
protection, and starter are OK.
c. Burner motor is OK.
2. Running or Iockout interlocks (including the
Airflow switch) are closed.
WARNING
Make sure all manual fuel shutoff valves are closed.
5 Models with
5 second
ignition
L1-18 — Ignition spark (if ignition
transformer is connected to
terminal 18).
1. Watch for spark or listen for buzz.
a. Ignition electrodes are clean.
b. Ignition transformer is OK.
6 All models L1-5 — 1. Ignition spark (if ignition
transformer is connected to
terminal 5).
2. Automatic pilot valve opens
(if connected to terminal 5).
NOTE: Refer to wiring diagram
of the programmer being
tested.
1. Watch for spark or listen for buzz:
a. Ignition electrodes are clean.
b. ignition transformer is OK.
2. Listen for click or feel head of valve for
activation.
a. Actuator (if used) is OK.
b. Pilot valve is OK.
7 All models L1-6 — Same as test no. 6 for
connections to terminal 6. (If
using direct spark ignition,
check the first stage fuel
valve(s) instead of the pilot
valve.)
Same as test no. 6. (If using direct spark
ignition, check the first stage fuel valve(s)
instead of the pilot valve.)
WARNING
Make sure all manual shutoff valves are closed.
8 All models L1-7 — Automatic main fuel valve(s)
opens. (If using direct spark
ignition on a model with
intermittent pilot/ignition on
terminal 6, 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) are OK.
9 All models L1-9 — Alarm (if used) turns on. 1. Alarm is OK.
10 All R4140L
modeIs
L1-8 and
10-11
13-L2 Firing rate motor drives open;
zero volts at terminal 13 after
motor starts driving open.
1. Low Fire switch is open.
2. Firing rate motor and transformer are OK.
11 All R4140G
modeIs
L18 and
14-11
13-L2 Firing rate motor drives closed;
line voltage at terminal 13 after
motor closes.
1. Low Fire switch is closed.
2. Firing rate motor and transformer are OK.
12 All R4140L
models
L1-8 and
14-11
15-L2 Firing rate motor drives open;
line voltage at terminal 15 after
motor opens.
1. High Fire switch is closed.
2. Firing rate motor and transformer are OK.