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Appendix B: Air Switch Adjustment
Arctic 1500-6000
1. Temporary Air Switch adjustments are to
be done if P1 and P9 firing rates cannot be
established. Do NOT leave this Step 1 as the
final setting, proceed to Step 2 after firing rates
have been established.
a. If blocked flue switch won't allow the P9
firing rate to be established, turn clockwise
in half turn increments until boiler will run
at P9 with the proper firing rate.
b. If low pressure air switch won't allow P1
firing rate to be established, turn counter-
clockwise in half turn increments until boiler
will run at P1 with the proper firing rate.
2. Air Switch adjustment is to be done after P1
and P9 firing rates have been established. The
Boiler should be in Standby and use the AZL23
to program the LMV3. Log in to the AZL23, by
holding down the F and A buttons together
until "CodE" is displayed. The OEM password
is: "EntrY". Press the up or down arrow until
the proper letter is displayed and press Enter.
Repeat the process until "EntrY" has been
completed. Continue to press enter again until
400 is displayed to complete log in. Advance
to the Parameter 500 series.
a. Blocked Flue Air Switch
i. Set Parameters 502:00 (Air) and 503:00
(VSD), to match P9's – Air and VSD settings.
After pressing Enter, the Air Damper and
VSD will adjust to these settings.
ii. Use a Multimeter set to Ohms or Continuity.
With Multimeter leads placed on the switch
terminals, turn air switch adjustment slowly
counter-clockwise, until the circuit opens.
iii. With Multimeter leads still in place, turn air
switch adjustment slowly clockwise, until
the circuit closes.
iv. Remove leads and turn the air switch
adjustment an additional, one full turn
clockwise.
v. Reset Parameters 502:00 (Air) and 503:00
(VSD) back to "0".
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b. Low Pressure Switch
i. Set Parameter 502:00 (Air), to match
P1's – Air setting.
ii. Set Parameter 503:00 (VSD), to match P1's –
VSD setting, less 10 percentage points lower
than P1's. (e.g. If VSD at P1 is set to 40.0 then
set Parameter 503:00 to 30.0)
iii. Use a Multimeter set to Ohms or Continuity.
Place Multimeter leads on the air switch
terminals and determine, if the circuit is
open or closed.
Open Circuit – turn air switch
adjustment slowly clockwise, until circuit
closes. Go to Step iv.
Closed circuit – turn the air switch
counter-clockwise until circuit opens. Go to
Step v.
iv. Next, turn air switch adjustment slowly
counter-clockwise, until the circuit opens.
v. Reset Parameters 502:00 (Air) and 503:00
(VSD) back to "0".
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