ACL 5500 Installation Manual page 12

Flame Signal Test Procedure
1. Turn power off to ACL controller
2. Remove High-Voltage Ignition wire from Ignition Module and
insert meter leads with test harness as shown
3. Turn on power and initiate start sequence
4. Meter will give erratic readings during ignition period but
should settle down between 1-2µA reading on meter
5. Adjust air shutter on pilot mixer and adjust pressure on
regulator to achieve a flame signal close to 2µA which is optimum
2.0
Ignitor/Flame Rod
1/8 " Gap Setting
to inside edge
of Nozzle
Meter
A DC
m
Meter
Leads
Metal Strain
Relief
sst Pilot Adjustable
Nozzle Bracket
ACL 5500 Combustion Safety Controller ACL 5500 Combustion Safety Controller
ACL Manufacturing
Ignition Module
Test
Harness
Red
Black
Ceramic
Insulator
Ground Lug.
10
ignition wire
High Voltage
Ignition Wire
Air Shutter
1/8" Gas
Connection
ACL M50
Mixer