Carrier 27SPA6 Installation Instructions Manual

27SPA6
Single-Stage Heat Pumps
with Puron Advance
1-1/2 To 5 Nominal Tons
NOTE: For use with R-454B indoor units only. Read the entire instruction manual before starting the installation.
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Check Equipment and Job Site . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Install on a Solid, Level Mounting Pad . . . . . . . . . . . . . . . . . . . . . 2
Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Check Defrost Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Elevate Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Make Piping Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mandatory Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Make Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Compressor Crankcase Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Install Electrical Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Check Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Repairing Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

SAFETY CONSIDERATIONS

IMPORTANT: This appliance shall only be installed by EPA qualified
personnel having appropriate certification. This appliance is not
intended for use by persons (including children) with reduced physical,
sensory or mental capabilities or lack of experience and knowledge,
unless they have been given supervision or instruction concerning use of
the appliance by a person responsible for their safety
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 a dry
powder or CO2 fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in literature and
attached 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.
Proper tools should be used that are designed for the refrigerant of the
unit being installed. For A2L refrigerants, non-sparking tools are
required. A refrigerant detector should be used prior to and during the
installation process to check for leaks. Open flames or other ignition
sources should not be present except during brazing. Brazing should
only take place on refrigerant tubes that are open to the atmosphere or
have been properly evacuated
™
Refrigerant
Installation Instructions
Recognize safety information. This is the safety-alert symbol
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
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 result in personal injury or death.
Before installing, modifying, or servicing system, main electrical
disconnect switch must be in the OFF position. There may be more than
one disconnect switch. Lock out and tag switch with a suitable warning
label.
WARNING
!
EXPLOSION HAZARD
Failure to follow this warning could result in
death, serious personal injury, and/or property
damage.
Never use air or any gas containing oxygen for
leak
compressors. Never allow compressor suction
pressure to operate in a vacuum with service
valves
pump-down instructions.

GENERAL

NOTE: In some cases noise in the living area has been traced to gas
pulsations from improper installation of equipment.
1. Maximum allowed elevation is 10,000 feet (3000 meters) above sea
level.
2. Locate unit away from windows, patios, decks, etc. where unit
operation sound may disturb customer.
3. Ensure that vapor and liquid tube diameters are appropriate for unit
capacity.
4. Run refrigerant tubes with no bends with centerline bend radius less
than 2.5 times the external pipe diameter..
5. Leave some slack between structure and unit to absorb vibration.
6. When passing refrigerant tubes through the wall, seal opening with
RTV or other pliable silicon-based caulk (see
7. Avoid direct tubing contact with water pipes, duct work, floor
joists, wall studs, floors, and walls.
testing or operating
closed. See service manual
Fig. 1).
. When
refrigerant
for