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Installation Instruction
286A / 288A
Evolutiont S eries Heat Pumps with Pur onr Refrigerant
2 To 5 Nominal Tons (Sizes 024 to 060)
NOTE: Read the entire instruction manual before s tarting the
installation.
Unless otherwise noted, information in these installation
instructions pertain to both 286A and 288A series units.
Information that is unique to the 286A series will be identified as
such; likewise information that is unique to the 288A series will
also be identified.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in
literature and a ttached to the unit. Consult local building codes and
current editions of the National Electrical Code ( NEC ) NFPA 70.
In Canada, refer to current editions of the Canadian electrical code
CSA 22.1.
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
these signal words; DANGER, WARNING, and CAUTION. These
words are used with the safety --alert symbol. DANGER identifies
the most serious hazards which will result in severe personal injury
or death. WARNING signifies hazards which could result in
personal injury or death. CAUTION is used to identify unsafe
practices which would 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.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have s harp edges or burrs. Use care and
wear appropriate protective clothing and gloves when handling
parts.
CAUTION
!
Indoor Thermostat Control Options
Model
Evolution
Control
Standard
2 --- stage
Thermostat
286A Yes Yes
288A Yes Yes*
* Units containingcircuit board HK38EA015 or newer.
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position
and install a lockout tag. There may be more than 1
disconnect switch. Lock out and tag switch with a
suitable warning label.
!
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal injury
or equipment damage.
PuronR refrigerant systems operate at higher pressures than
standard R--22 systems. Do not use R -- 22 service equipment
or components on PuronR refrigerant equipment.