Page 2 - CLEARANCES; Operating Ambient; UNIT SUPPORT; CAUTION
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 2 421 01 5103 05 Locate unit in a well drained area, or support unit high enough so that water runoff will not enter the unit.Locate unit away from areas where heat, lint, or exhaust fumes will be discharged onto unit (as from dryer vent...
Page 3 - Minimum; REFRIGERATION SYSTEM
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 3 Specifications subject to change without notice. Figure 1 Tie Down Knockouts Base Pan Depth C B A Base Pan Width a” (10mm) dia. Tie Down Knockouts In Base Pan (2 places) View From Top Inches (mm) Base Pan Width x Depth T...
Page 4 - WARNING
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 4 421 01 5103 05 Figure 3 Indoor (cooling) Piston TEFLON SEAL BRASS HEX NUT STRAINER PISTONRETAINER BRASSHEX BODY DISTRIBUTOR PISTON FLOW INCOOLING TEFLON RING L10S017 B. REFRIGERANT LINE SETS The refrigerant line set must be properly si...
Page 6 - The unit is shipped with a factory refrigerant charge. The; Failure to follow this caution may result in product dam-
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 6 421 01 5103 05 Figure 6 Service Valve VALVE CORE SERVICE VALVE G. BRAZING CONNECTIONS NOTE: Remove valve core from schrader port on both Service Valves BEFORE brazing. This helps prevent overheating and damage to valve seals (refer to ...
Page 7 - ELECTRICAL WIRING
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 7 Specifications subject to change without notice. 4. Close nitrogen valve and allow system to stand for 1 hour. During this time, dry nitrogen will diffuse throughout the system absorbing moisture. 5. Repeat this procedur...
Page 9 - REFRIGERANT CHARGE; A. UNITS WITH COOLING MODE TXV
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 9 Specifications subject to change without notice. START- UP PROCEDURE 1. Set indoor thermostat selector switch to OFF.2. Turn ON all electrical disconnect devices.3. If unit has a crankcase heater, energize the heater and...
Page 11 - Rating Plate (required) Subcooling Temperature; Measured Liquid
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 11 Specifications subject to change without notice. Figure 13 Rating Plate (required) Subcooling Temperature ° F ( ° C) Measured Liquid Pressure (psig) ° F ( ° C) ° F ( ° C) ° F ( ° C) ° F (° C) F (° C) F ( ° C) 6 3 8 4 10...
Page 14 - IMPORTANT; Compressor Crankcase Heater; Figure 17 Outdoor Coil Thermistor (OCT) Attachment; UNIT OPERATION AND SAFETY HAZARD; PERSONAL INJURY HAZARD; ENVIRONMENTAL HAZARD; Follow these steps to properly start up the
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 14 421 01 5103 05 ELECTRICAL WIRING (for *4A3, sizes 24 and 30 only) IMPORTANT : Check factory wiring and field wire connections to ensure terminations are secured properly.Check wire routing to ensure wires are not in contact withtubing...
Page 15 - Check Charge; Major Components; GENERAL SEQUENCE OF OPERATION; Cooling Operation
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 15 Specifications subject to change without notice. Replace stem caps after system is opened to refrigerant flow. Replace caps finger- tight and tighten with wrench an additional 1/12 turn 3. Close electrical disconnects t...
Page 17 - STATUS CODES
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 17 Specifications subject to change without notice. STATUS CODES Table 3 shows the status codes flashed by the amber status light. Most system problems can be diagnosed by reading the status code as flashed by the amber st...
Page 18 - Resistance vs Temperature Chart; THERMISTOR CURVE
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 18 421 01 5103 05 Figure 18 Resistance vs Temperature Chart 0 10 20 30 40 50 60 70 80 90 0 (-17.77) 20 (-6.67) 40 (4.44) 60 (15.56) 80 (26.67) 100 (37.78) 120 (48.89) TEMPERATURE °F (°C) RESISTANCE (KOHMS) THERMISTOR CURVE A08054 Figure ...
Page 19 - (See Thermostat Installation Instructions for; ELECTRICAL OPERATION HAZARD
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 19 Specifications subject to change without notice. Figure 20 Observer Communicating Wall Control Four- Wire Connection Wiring Diagrams (See Thermostat Installation Instructions for specific unit combinations) S1 S2 R C DX...
Page 20 - Non - Communicating Standard Thermostat; NOTE
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 20 421 01 5103 05 Figure 22 Non - Communicating Standard Thermostat 2 - Wire 24V Circuit Connections R C W/W1 Y/Y2 G G Y W C R R C Y FIELD INSTALLED JUMPER WIRE AIR CONDITIONER TPPICAL FURNACE OR FAN COIL A/C THERMOSTAT 24VAC HOT 24VAC C...
Page 21 - R- 410A QUICK REFERENCE GUIDE; WARNINGS
INSTALLATION INSTRUCTIONS R- 410A Split System Air Conditioner 421 01 5103 05 21 Specifications subject to change without notice. R- 410A QUICK REFERENCE GUIDE Observe all WARNINGS , CAUTIONS, NOTES, and bold text. R- 410A refrigerant operates at 50% - 70% higher pressures than R- 22. Be sure th...