Page 2 of 21 507858-01Issue 1922
These instructions, and any instructions packaged with
mating components and/or accessories, should be carefully
read prior to beginning installation. Note particularly any
CAUTIONS or WARNINGS in these instructions and all
labels on the units.
These instructions are intended as a general guide only,
for use by qualied personnel and do not supersede any
national or local codes in any way. Compliance with all local,
state, provincial, or national codes pertaining to this type of
equipment should be determined prior to installation.
Units that comply with the maximum cabinet leakage 2% of
rated airow requirements of ANSI/ASHRAE 193 (complies
with IECC 2015) are identied on the rating plate.
In the State of Massachusetts:
This product must be installed by a licensed Plumber
or Gas Fitter. When exible connectors are used, the
maximum length shall not exceed 36”. When lever-type
gas shutos are used, they shall be T-handle type.
WARNING
Because the MGE unit is installed in a conned space,
the return air must be handled by ducts that are sealed
to the unit casing and terminate outside the space
containing the unit. Even a small leak at the return air
duct connection can cause a potentially dangerous
negative pressure condition.
WARNING
For your safety, do not store or use gasoline or other
ammable vapors and liquids in the vicinity of this or any
other appliance. Such actions could result in property
damage, personal injury, or death.
WARNING
Installation and servicing of air conditioning equipment
can be hazardous due to internal refrigerant pressure
and live electrical components. Only trained and
qualied service personnel should install or service
this equipment. Installation and service performed by
unqualied persons can result in property damage,
personal injury, or death.
WARNING
The unit must be installed with approved wall sleeve
and grille accessories for safe operation. Improper
installations could result in property damage, personal
injury, or death.
WARNING
Inspection
Upon receipt of equipment, carefully inspect it for possible
shipping damage. If damage is found, it should be noted
on the carrier’s freight bill. Take special care to examine
the unit inside the carton if the carton is damaged. File a
claim with the transportation company. If any damages are
discovered and reported to the carrier do not install the
unit, as claim may be denied.
Check the unit rating plate to conrm specications
are as ordered.
Limitations
The unit should be installed in accordance with all
national and local safety codes. Limitations of the unit and
appropriate accessories must also be observed.
The outdoor fan is designed to operate against no more
than .10” w.c. static pressure.
Minimum and maximum operation conditions must be
observed to assure maximum system performance
with minimum service required. Refer to Table 1 for the
application limitations of the unit.
Table 1. Application Limitations
Outdoor Ambient Air Temperature °F
Minimum DB Maximum DB
Cool Cool Heat
65 115 75
Indoor Ambient Air Temperature °F
Minimum Maximum
DB/WB DB DB/WB DB
Cool Heat Cool Heat
62/57 50 90/72 80
DB = Dry Bulb
WB = Wet Bulb