FJ5 Comfort Puron Advance VS Air Handler R454B Refrigerant 

AIR HANDLER TECHNOLOGY AT ITS FINEST

The FJ5 fan coil has the proven technology of Carrier fan coil units with Puron Advance refrigerant as well as vertical and horizontal applications. The design features contoured condensate pans with rugged drain connections, ensuring that little water is left in the unit at the end of the cooling duty cycle. The lack of standing condensate and corrosion free pans improves IAQ and product life, features homeowners appreciate.

Standard features include grooved tubing and louvered fins. Coil circuiting has also been updated to make the most of all Carrier heat pumps and air conditioners. Units come with solid state fan controls, 1-inch (25mm) thick insulation with R-value of 4.2, multi-speed motors, and fully-wettable coils. Units can accommodate factory- and/or field-installed heaters from 3 to 30 kW. Assembled at the factory compliant with low leak requirements of less than 2% cabinet leakage rate at 0.5 inches W.C. and 1.4% cabinet leakage rate at 0.5 inches W.C. when tested in accordance with ASHRAE 193 standard.

The FJ5 fan coil design is loaded with popular features. These fan coils utilize the latest in electronic commutation motor (ECM) technology through the use of high efficiency, multi-tap ECM motors allowing reliable air delivery with increased static pressure. It comes in a pre-painted (taupe metallic) galvanized steel casing. The unit is shipped with a Puron Advance refrigerant TXV (sizes 18–60).

STANDARD FEATURES
• Refrigerant leak detection dissipation system for added safety
• Multi-tap ECM (electronic commutating motor) motors – all sizes.
• Integrated motor controls, with 90-sec off TDR function, have
replaced integrated circuit board.
• Five available speed tags to meet a wide range of applications.
• Large, grooved tube, louvered fin coils.
• Efficient, quiet, time-tested blower housings and diffusers.
• Sturdy, drainable condensate pans.
• Construction innovations designed to prevent cabinet sweating.
• Tested for condensate disposal in much tougher conditions than Air
Conditioning and Refrigeration Institute requirements.
• Super-thick R-4.2 insulation with vapor barrier.
• Pre-painted galvanized steel cabinet (taupe metallic).
• Design meets stringent regulations for cabinet air leakage of less than
2% when tested at 0.5 inches W.C., and less than 1.4% at 0.5 inches
W.C. when tested in accordance with ASHRAE 193 standard.
• Installation-flexible, multipoise units.
• 2-piece modular design available for 42 thru 60 sizes. Facilitates attic
and crawlspace installations..
• Horizontal hanging provisions on cabinet.
• Newly improved filter rack area filter door insulation added for
improved air seal. No tools required to access filter.
• Factory-installed heater packages available on select models.
(5 through 15 kW).
• 3 through 30 kW accessory heaters - field installed.
• Easy plug-in provisions for heater installation.
• Entry options for high and low voltage wiring hook-up.
• Leak-preventing sweat connections.
• Factory installed thermostatic expansion valve, TXV, on all coils.
• Designed for manufactured housing applications.

WARRANTY
• Default 5-year parts limited warranty:
– 10-year parts limited warranty with timely registration*.
Equipment must be registered within 90 days of original installation, except in jurisdictions where warranty benefits cannot be conditioned on registration.
* Applies to original purchaser/homeowner and not available to subsequent owners, except in jurisdictions where laws dictate otherwise.
See Warranty certificate for complete details and restrictions.

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 kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing and work gloves. Have a 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 the current editions of the National Electrical Code (NEC) NFPA 70.

Recognize safety information in instruction manuals, be alert to the potential for personal injury.
Understand the 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 PROPERTY OR PERSONAL INJURY HAZARD
Risk of fire. Flammable refrigerant used.
To be repaired only by trained service personnel. 
Do not puncture refrigerant tubing.
Auxiliary devices which may be ignition sources shall not be installed in the ductwork, other than auxiliary devices listed for use with the specific appliance. 

See instructions.
Dispose of refrigerant properly in accordance with federal or local regulations.
Failure to follow proper R-454B mitigation system installation instructions can result in property damage, personal injury, or death. 
If any fault codes are listed, please troubleshoot to prevent system malfunction.