Honeywell 7800 Series Installation Instructions Manual page 13

Test RM7845A
No. Models Jumpers Voltmeter
12 15-13
113 14-13
14 4-5
15 4-5
and
4-13
Final All
Table 8. Static Checkout. (Continued)
Test
— 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.
18-L2 If damper motor is used, motor
drives open; line voltage at
Terminal 18 after motor is in Low
Fire position.
18-L2 If damper motor is used, motor
drives open; zero volts at
Terminal 18.
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
13
RM7845A 7800 SERIES RELAY MODULES
If Operation is Abnormal,
Check the Items Listed Below
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.
66-1147—1