
Page 2 of 22
508197-01
Issue 2137
The MGE4 series are self-contained, gas-fired heating
with electric cooling models with optional epoxy-coated
coils. The unit design has been certified by Intertek
Testing Services for compliance with the latest edition of
the American National Standard – ANSI Z21.47 for direct
vent central furnaces. The MGE4 models are certified to
be in compliance with the latest edition of AHRI Standard
210/240. All models are design certified for heating
operation when fired with natural or propane gas. Units
must be equipped to use the fuel type provided in the field.
These instructions are intended as a general guide only,
for use by qualified 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 certified for less than 2% cabinet leakage using ANSI/
ASHRAE 193 (complies with IECC 2015) are identified on
the rating plate.
In the State of Massachusetts:
This product must be installed by a licensed Plumber
or Gas Fitter. When flexible connectors are used, the
maximum length shall not exceed 36”. When lever-type
gas shutoffs are used, they shall be T-handle type.
WARNING
Because the MGE unit is installed in a confined space,
the return air must be ducted, sealed to the unit and
terminated 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
flammable 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
qualified service personnel should install or service
this equipment. Installation and service performed by
unqualified persons can result in property damage,
personal injury, or death.
WARNING
The unit must be installed with approved wall sleeve
and louver 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 damage is
discovered and reported to the carrier, do not install
the unit, as claim may be denied.
Check the unit rating plate to confirm specifications
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 proper system performance. Refer to
Table 1 for the ambient operating limitations of the unit.
Table 1. Ambient Temperature 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
Содержание MGE4-12 Series
Страница 20: ...Page 20 of 22 508197 01 Issue 2137 Figure 12 Wiring Diagram MGE 0 75 Ton through 2 Ton Wiring Diagrams ...
Страница 21: ...508197 01 Issue 2137 Page 21 of 22 Figure 13 Wiring Diagram MGE 2 5 Ton ...
Страница 22: ...Page 22 of 22 508197 01 Issue 2137 Figure 14 Wiring Diagram MGE 3 Ton ...