Lennox Harmony III - 6.1.2. Fault Recall and Time Delay Override

PIAB Calculation Worksheet
Page 60
505023M 08/11
PIAB Calculation Worksheet
PIAB = [(Required CFM − Minimum CFM) / (Maximum CFM − Minimum CFM)] * 100
Sample CFM ' Required Minimum Maximum Minimum
Sample PIAB = ([___920 − 450 ] / [ 2000 − 450 ]) x 100
==
bb
Sample PIAB = ([ 470 ] / [ 1550 ]) x 100
=
b
Sample PIAB = [ 0.303 ] x 100 = 30 %
Zone 1 CFM ' Required Minimum Maximum Minimum
ZONE 1 PIAB = ([ − ] / [ − ]) x 100
==
bb
ZONE 1 PIAB = ([ ] / [ ]) x 100
=
b
ZONE 1 PIAB = [ ] x 100 = %
Zone 2 CFM ' Required Minimum Maximum Minimum
ZONE 2 PIAB = ([ − ] / [ − ]) x 100
==
bb
ZONE 2 PIAB = ([ ] / [ ]) x 100
=
b
ZONE 2 PIAB = [ ] x 100 = %
Zone 3 CFM ' Required Minimum Maximum Minimum
ZONE 3 PIAB = ([ − ] / [ − ]) x 100
==
bb
ZONE 3 PIAB = ([ ] / [ ]) x 100
=
b
ZONE 3 PIAB = [ ] x 100 = %
Zone 4 CFM ' Required Minimum Maximum Minimum
ZONE 4 PIAB = ([ − ] / [ − ]) x 100
==
bb
ZONE 4 PIAB = ([ ] / [ ]) x 100
=
b
ZONE 4 PIAB = ( ) x 100 = %
REVISION HISTORY
Date Revision description
01−2011 G71, SLP98 Furnace support added.
CBX32, CBX40 (non icomfortt) support added.
Clarifications requested by Applications, Field, and Training groups.
Added installation worksheets
Clarification of zone control jumper usage.
07−2011 Add SL280V, EL296V Furnace support added. (reformatted)