Lennox XP25-036-230-01 - Auxiliary Heat

Page 54
XP25
Yes
Yes
No
No
No
Yes
Auxiliary heat (while
demand exists)
Dual Fuel?
Turn off heat pump.
Heat only using gas
heat.
All sensors closed
and within operating
range?
Check for status or
fault codes in out
door control
Emergency
heat selected?
Go to auxiliary
heating.
Balance
point region
Balance
point region
Balance
point region
Above the low balance point
Go to primary heat
pump heating.
Return to
modulating
heat pump
heat.
Figure 32. Auxiliary Heat