Honeywell R7140G Installation Instructions Manual page 26

Burner control modules
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R7140G,L,M BURNER CONTROL MODULES
Test
No.
R7140 Models
Jumpers Voltmeter
6
All
L1-5
7
L1-6
8
L1-7
9
L1-9
10
R7140G,L
L1-8
and
10-11
11
R7140G,L
L1-8
and
14-11
12
R7140G,L
L1-8
and
10-11
13
R7140L
L1-8
and
14-11
14
R7140G,L
11-12
15
R7140M with
14-11
open damper
contacts.
16
R7140M with
L1-8
open damper
contacts.
17
R7140M with
L1-8
open damper
and
contacts.
L1-11
Final
All
66-1153—2
Table 8. Static Checkout. (Continued)
Test
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
Same as test no. 6 for
connections to terminal 5. If
using direct spark ignition, check
the first stage fuel valve(s)
instead of the pilot valve.
Automatic main fuel valve(s)
open.
If using direct spark ignition on a
model with intermittent pilot on
terminal 6, check the optional
second stage fuel valve, if used.
Alarm (if used) turns on.
13-L2
Firing rate motor drives open;
zero volts at terminal 13 after
motor starts driving open.
13-L2
Firing rate motor drives closed;
line voltage at terminal 13 after
motor is in Low Fire position.
15-L2
Firing rate motor drives open;
line voltage at terminal 15 after
motor is in High Fire position.
15-L2
Firing rate motor drives closed;
zero volts at terminal 15 after
motor starts driving closed.
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.
If damper motor is used, motor
drives damper open.
13-L2
If damper motor is used, motor
drives open; line voltage at
terminal 13 after motor is in Low
Fire position.
13-L2
If damper motor is used, motor
drives open; zero volts at
terminal 13.
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.
Normal Operation
of system being tested.
26
If Operation is Abnormal,
Check the Items Listed Below
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. 6. 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. Alarm.
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
1. High Fire Purge Switch.
2. Firing rate motor and transformer.
1. Low Fire Start Switch.
2. Firing rate motor and transformer.
1. Series 90 Controller.
2. Firing rate motor and transformer.
Damper motor.
1. Low Fire Start Switch.
2. Damper motor.
1. Low Fire Start Switch.
2. Damper motor.

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