Call For Cooling - Lennox G71MPP-36B-070 Installation Instructions Manual

CALL
FOR COOLING
1st Stage Cooling
Request Received
Energize 1st Stage
Cooling Contactor
Compressor & Fan
A_tned °2°-rs eE _c°W_r dO 'na YI
Energize Indoor Blower
A_
Per Ramp ng Prof e
z_\
4 YES
_'_YES-- --YES'_
Energize 2nd Stage I ,[Energize Indoor Blower Cooling Contactor I (High Cooling mode)
(Compressor & Fan) NO
I I
_ES_ _ %n:%_,dn;':&%er 1
NO
÷
De-Energize 2nd I
Stage Cooling I
Contactor
(Compressor & Fan)l
Energ,zeand ,
Ma Lnt:nclonodiOlCgr B_oOdVr atJ
NO
l'
De-Energize 1st I
Stage Cooling I
Contactor
(Compressor &
Fan)I
!
IDe-Energize'nd°°r Bl°wer
Per Ramping Profile
2nd stage cooling operation requires a 2-stage thermostat, a 2-stage cooling system and
on-board link W915 must be be cut. The control will not respond to a 2nd stage cooling
request unless a 1st stage cooling request is active
Indoor blower cooling mode and high cooling mode have a specific ON, OFF and speed
ramping profiles. The specific profile is selected using the DIP switches on the control.
Page 64