
A95367
Yes
Yes
Using recorded Low Heat (LH)
and High Heat (HH) values,
calculate the Heat Load (HL)
using:
HL=(228 X LH) + (350 X HH)
Is HL < 3648?
Is HL > 5600?
Calculated Low Heat (LH) on
time will be 16 minutes
Calculated Low Heat (LH) on
time will be 0 minutes
Unit will initiate the next cycle
in Low Heat to the nearest
minute for a period of time as
calculated by the following:
LH
run time
= (5600-HL)/122
Unit will initiate the next cycle in
Low Heat for a maximum of 16
minutes before initiating High Heat
if the call for heat still exists
Unit will initiate the next cycle in
High Heat until the
thermostat is satisfied.
The next cycle will be initiated
with the calculated Low Fire run
time before initiating High Heat if
a call for heat is still present
The Low Heat and High Heat
run times for this cycle will be
as calculated
Thermostat is satisfied.
Furnace
Staging
Algorithm
—41—