Five (5) wires should be run from thermostat subbase to the 24V terminal board in the unit. A five conductor, 18 gauge copper, color-coded thermostat cable is recommended. The connection points are shown in Figure 8: TABLE 3 THERMOSTAT WIRE SIZE Maximum Transformer Distance VA FLA Wire Gauge In Feet 55 2.3 20 gauge 18 gauge 16 gauge 14 guage 12 guage 45 60 100 160 250 TABLE 4 WALL THERMOSTAT AND SUBBASE COMBINATIONS Thermostat Subbase Predominate Features 8403-002 T87F3111 8404-003 Q539A1220 1 s
12 Table 4 Wall thermostat and Subbase Combinations ........................................ 12 Table 5 Fan Blade Dimensions .......................... 17 Table 6 Refrigerant Charge ............................... 17 Table 7 Indoor Blower Performance .................. 17 Table 8 Recommended Air Flow........................ 18 Table 9 Maximum EXP Electric Heat Only ........ 18 Table 10 Pressure Table ...................................... 18 Table 11 Optional Accessories.........................
A pressure table can be found later in the manual covering all models. It is imperative to match the correct pressure table to the unit by model number. Manual 2100-400 Page 15 TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS Shown in Figure 10 is the correct fan blade setting dimension for proper air delivery across the outdoor coil. Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the mot
If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent. GENERAL The equipment covered in this manual is to be installed by trained, experienced service and installation technicians. The refrigerant system is completely assembled and charged. All internal wiring is complete. The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts. These ins