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• COMPRESSOR CONTROL
• DEFROST
Comfort Alert Diagnostic Module . . . . . . . . . . 28
Outdoor Fans . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Recommendation . . . . . . . . . . . . . . . . . . . . . 30
FASTENER TORQUE VALUES . . . . . . . . . . . . 32
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . 33
QUICK REFERENCE GUIDE . . . . . . . . . . . . . 34
APPENDIX B - WIRING DIAGRAM LIST . . . . 34
FACTORY INSTALLED . . . . . . . . . . . . . . . . . 42
START-UP CHECKLIST . . . . . . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, main-
tenance, or use can cause explosion, fire, electrical shock
or other conditions which may cause personal injury or
property damage. Consult a qualified installer, service agen-
cy, or your distributor or branch for information or assis-
tance. The qualified installer or agency must use factory-
authorized kits or accessories when modifying this product.
Refer to the individual instructions package
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
the unit. Consult local building codes and appropriate na-
tional electrical codes (in USA, ANSI/NFPA70, National
Electrical Code (NEC); in Canada, CSA C22.1) for special
requirements.
It is important to recognize safety information. This is the
safety-alert symbol
. When you see this symbol on the
unit and in instructions or manuals, be alert to the potential
for personal injury.
Understand the signal words DANGER, WARNING, CAU-
TION, and NOTE. These words are used with the safety-
alert symbol. DANGER identifies the most serious hazards
which will result in severe personal injury or death. WARN-
ING signifies hazards which could result in personal injury
or death. CAUTION is used to identify unsafe practices,
which may result in minor personal injury or product and
property damage. NOTE is used to highlight suggestions
which will result in enhanced installation, reliability, or
operation.
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause in personal in-
jury or death.
Before performing service or maintenance operations on
unit, always turn off main power switch to unit and install
lockout tag. Unit may have more than one power switch.
2
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
R-410A refrigerant systems operate at higher pressures
than standard R-22 systems. Do not use R-22 service
equipment or components on R-410A refrigerant
equipment.
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal injury
or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition sources
away from refrigerants and oils.
CUT HAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs. Use
care and wear appropriate protective clothing, safety
glasses and gloves when handling parts and servicing
units.
See Fig. 1-2 for unit dimensions. For physical data, see
Tables 2-3. For model number nomenclature, see Fig. 3.
Rated Indoor Airflow (cfm)
Table 1 below lists the rated indoor airflow used for the
AHRI efficiency rating for the units covered in this
document.
Replacement /Retrofit - R-22 to R-410A Refrigerant
Split system heat pumps are intended to be installed with
matching indoor sections only. The CHS heat pump outdoor
units are matched only with same-size FHX indoor sections.
Existing R-22 indoor coils cannot be converted to R-410A
heat pump duty. Only the existing refrigerant piping is a can-
didate for retrofit use.
Specifications subject to change without notice.
WARNING
WARNING
CAUTION
GENERAL
Table 1 - CHS with FHS
MODEL NUMBERS
CHS183*T/U - FHS180
CHS243*T/U - FHS240
INSTALLATION GUIDELINE
FULL LOAD AIRFLOW (cfm)
5625
7500
CHS-180-240-01SI Rev. A
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