Page 2
504954M 08/06
Shipping and Packing List
Check unit for shipping damage. Consult last carrier imme-
diately if damage is found.
1 − Assembled HPXA16 outdoor unit
2 − Grommets (for liquid and vapor lines)
General Information
When servicing or repairing HVAC components, ensure
the fasteners are appropriately tightened. Table 1 shows
torque values for fasteners.
Table 1
Torque Requirements
Part
Recommended Torque
Service valve cap
8 ft.− lb.
11 NM
Sheet metal screws
16 in.− lb.
2 NM
Machine screws #10
28 in.− lb.
3 NM
Compressor bolts
90 in.− lb.
10 NM
Gauge port seal cap
8 ft.− lb.
11 NM
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
who have jurisdiction before installation.
WARNING
This product and/or the indoor unit it is matched
with may contain fiberglass wool.
Disturbing the insulation during installation, main-
tenance, or repair will expose you to fiberglass wool
dust. Breathing this may cause lung cancer. (Fiber-
glass wool is known to the State of California to
cause cancer.)
Fiberglass wool may also cause respiratory, skin,
and eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address shown below, or contact
your supervisor.
Lennox Industries Inc.
P.O. Box 799900
Dallas, TX 75379−9900
Unit Dimensions − inches (mm)
2-3/4 (70)
COMPRESSOR
INLET AIR
Top View
Side View
Service Access
ELECTRICAL
INLETS
VAPOR
LINE INLET
DISCHARGE AIR
Coil drain outlets (around
perimeter of base)
4
(102)
B
1-3/8
(35)
LIQUID
LINE INLET
4
(102)
6-1/16
(154)
A
C
4-7/8
(124)
4-1/2
(114)
2-9/16
(65)
2
(51)
2
(51)
INLET
AIR
INLET AIR
7−1/2
(191)
7−1/2
(191)
3-7/8
(98)
3-7/8
(98)
28-1/8 (718)
32-1/8 (816)
34-1/16 (865)
26−5/8 (676)
18-5/8 (473)
Model
A
B
C
HPXA16−024, −036
30-7/8 (784)
12-3/4 (324)
17-1/4 (438)
HPXA16−048, −060
44-7/8 (1140)
14-1/4 (362
18-3/4 (476)
