Technical Instructions LME Series
Document No. LME-1000
Section 6 Page 8 SCC Inc.
Adjusting P0, P1, and P2 via the AZL23 Display Unit
1. Log in at the Service or OEM access level. The display will say “400: Set”. Press the info button.
2. The display will say “run”. Give the LME7 a call for heat. The LME7 will proceed to start the burner.
After prepurge is complete, the LME7 will slow the blower down to the preset ignition speed (P0).
3. At this point, the LME7 will alternately display P0 and the ignition speed.
4. To adjust the ignition speed, press and hold the A button while simultaneously pressing the + or -
button to increase or decrease the speed respectively. The speed of the blower will change in real
time. Once the desired ignition speed P0 has been set, press the info button.
5. The startup of the burner will continue. The burner will light off and establish flame. Once the
burner has lit off, it will drive to the preset low fire speed (P1).
6. The LME7 will then alternately display P1 and the low fire speed. To adjust the low fire speed, press
and hold the A button while simultaneously pressing the + or - button to increase or decrease the
speed respectively. The speed of the blower will change in real time. Once the desired low fire
speed P1 has been set, press the info button.
7. The LME7 will immediately drive to the preset high fire speed P2.
8. The LME7 will then alternately display P2 and the high fire speed. To adjust the high fire speed,
press and hold the A button while simultaneously pressing the + or - button to increase or decrease
the speed respectively. The speed of the blower will change in real time. Once the desired high fire
speed P2 has been set, press the info button.
9. Press the + and - buttons together (escape) to return to normal operation. The PWM blower will
now respond to the external load control signal being supplied to the LME7.
To Next Page
Loading...
Need help?
General
