Step 1 - Setting The Unit - Lennox Merit Series Installation Instructions Manual

UNIT DIMENSIONS - INCHES (MM)
A
SIDE
VIEW
FIGURE 1
TABLE 1 – Unit Dimensions
Model Numbers
16HPX-024 24-1/4 (616)
16HPX-036 32-1/4 (819)
16HPX-048 32-1/4 (819)
16HPX-060 32-1/4 (819)
STEP 1 – SETTING THE UNIT
(Continued) – Unit Placement
NOTICE!
Roof Damage!
This system contains both refrigerant and oil. Some
rubber roofing material may absorb oil, causing the
rubber to degrade. Failure to follow this notice could
result in damage to roof surface.
IMPORTANT
This unit must be matched with an AHRI Certified indoor
coil or air handler.
Coils previously charged with HCFC-22 must be flushed.
WARNING
To prevent personal injury, as well as damage to panels,
unit or structure, observe the following:
While installing or servicing this unit, carefully stow all
removed panels so that the panels will not cause injury
to personnel, objects or nearby structures. Also, take
care to store panels where they will not be subject to
damage (e.g., being bent or scratched).
While handling or stowing the panels, consider any
weather conditions (especially wind) that may cause
panels to be blown around and damaged.
B
A B
32-1/2 (826)
32-1/2 (826)
42-1/4 (1073)
42-1/4 (1073)
Exhaust vents from dryers, water heaters and furnaces
should be directed away from the outdoor unit. Prolonged
exposure to exhaust gases and the chemicals contained
within them may cause condensation to form on the steel
cabinet and other metal components of the outdoor unit.
This will diminish unit performance and longevity
Install unit level or, if on a slope, maintain slope tolerance of 2
degrees (or 2 inches per 5 feet [50 mm per 1.5 m]) away from
building structure.
BUILDING
STRUCTURE
This model is designed for use in check / expansion
valve systems only. An indoor expansion valve approved
for use with HFC-410A refrigerant must be ordered
separately and installed prior to operating the system.
NOTE - An optional Unit Stand-Off Kit (94J45) is available
for this unit. Black high-density polyethylene feet raise unit
off of mounting surface away from damaging moisture.
Four feet are furnished per order number.
Page 2
IMPORTANT
PLACEMENT
INSTALL UNIT AWAY
FROM WINDOWS
TWO 90º ELBOWS INSTALLED IN LINE SET
WILL REDUCE LINE SET VIBRATION
FIGURE 2
SLAB MOUNTING
DISCHARGE AIR
MOUNTING SLAB
GROUND LEVEL
FIGURE 3
IMPORTANT