Ensure service equipment is rated for R-410. Do not use R-22 service equipment or components on R-410 equipment. Puron (R-410A) systems operate at higher pressures than R-22 systems. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.įailure to follow this warning 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. WARNING signifies hazards which could result in personal injury or death. DANGER identifies the most serious hazards which will result in severe personal injury or death. These words are used with the safety-alert symbol. Understand the signal words DANGER, WARNING, and CAUTION. When you see this symbol on the unit and in instruction manuals, be alert to the potential for personal injury. In Canada, refer to the current editions of the Canadian Electrical Code CSA C22.1.

Consult local building codes and the current editions of the National Electrical Code (NEC) NFPA 70. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Wear safety glasses, protective clothing and work gloves. Refer to the individual instructions packaged with kits or accessories when installing.įollow all safety codes. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product.

Consult a qualified installer, service agency, or your distributor or branch for information or assistance. 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. 27Īnd REPLACEMENT (FB4, FE4, FX4 and FV4). 26-27 Thermostatic Expansion Valve (TXV). 1 FAN COIL DESCRIPTION AND TROUBLESHOOTING 2-19įY5, FH4, PF4 (even sizes), and FF1E (even sizes),įB4C, FX4D, PF4 (odd sizes) and FF1E (odd sizes)įV4. NOTE: Read the entire instruction manual before starting the installation.

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