Lennox International Inc. 021 User Manual

Page of 16
Page 16
EDA 01/06
Upflow/horizontal
NOTE − AIR HANDLER REQUIRES
FIELD−FABRICATED TRANSITION
BETWEEN BLOWER OUTLET
AND EDA COIL.
[If furnace] 
Select indoor
coil
MUST BE TXV ONLY
Figure 14
Humiditrol
®
 Enhanced Dehumidification Accessory (EDA)
Decision Tree
Select EDA
(REFER TO EDA ENGINEERING HANDBOOK)
X = PREFERRED MATCH−UP
A = ALLOWED FOR PHYSICAL MATCH−UP TO EVAPORATOR
HUMIDITROL
®
 EDA
CAPACITY
−024B
−036C
−060D
94M41
94M42
94M43
−018
X
A
−024
X
A
−030
X
A
−036
X
A
−042
X
−048
X
−060
X
Desired
equipment
matchup listed in
EDA Engineering
Handbook?
Zoning
application?
Application
Not Approved
DO NOT
INSTALL
START
Must use one of
these variable
speed indoor
units:
CBX32MV, CBWMV,
G60UHV, G60DFV,
G61MPV ONLY!
Must use one of
these outdoor units:
XC21, XP19, XC13, XP13
ONLY!
NOTE − Lennox warranties do
not cover damage or defect
resulting from operation with
system components (indoor unit,
outdoor unit, and refrigerant
control devices) which do not
match or meet the specifications
recommended by Lennox. This
unit intended to operate with
variable speed air handlers − see
Lennox Engineering  Handbook
for approved matches.
YES
NO
YES
INSTALL
SYSTEM
NO
Must be valid ARI rated match (refer to outdoor unit Engineering Handbook)
Select Piping Kit
(REFER TO EDA ENGINEERING HANDBOOK AND
INSULATION & PIPING KIT INSTRUCTIONS 505,021M)
CAPACITY
OUTDOOR UNIT MODEL
PIPING KIT
−018
XC13
98M62
XP13
94M44
−024
XC13
98M62
XP13, XP19, XC21
94M44
−030
XC13, XP13
98M22
−036
XC13
98M22
XP13, XP19, XC21
94M44
−042
XC13
98M22
XP13
94M44
−048
XC13
98M22
XP13, XP19, XC21
94M44
−060
XC13
98M22
XP13, XP19, XC21
94M44
Downflow
NOTE − REQUIRES ADDITIONAL
FIELD−FABRICATED SUPPORT
FRAME & TRANSITION; SEE
INSTALLATION SUPPLEMENT
505,134M
Upflow/ 
Horizontal
Downflow
How
installed
?
Is
dealer
R−410A & EDA
trained
?
Obtain R−410A &
EDA training
YES
NO