Assessments - 3, GPA: 4.3
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- -ß / _ .HEAT -O O HEAT OFF ■O O JELECTMNIfi TtHEm-@-a.u- PC2 ©- f-Hh-i IR M©*-© IR & PC1 SINGLE STAGE HEAT S SINGLE STAGE COOL THERMOSTAT (TYP) — VIO - CTO DT ï" '-»rO-BLU-% -1 LOGIC h®~ -0RN-®KT) PS jQ' ^^-REO-ORN em J& ■ BLK- BLK REO — ■ ORN TRAN BRN — RED — CAP1 gn EG © © PC2 © 0 © ®(D© © © © © © © © © © © PC1 © © © © 1 © © COX HEA © © 0 0 0 0 sQeQs I-FTpi ¡—o IS* o PS & O LS_ <> als: ALS1 — Auxiliary Limit Switch (S.P.S.T.) N.C. (Blower) ALS2 — Auxiliary Limit Switch (S.P.S.T) N.C. (Rollout) C — Contactor CAP1,2 — Capacitors (Run) COMP — Compressor CTD — Compressor Time Delay DT — Discharge Thermostat EG — Equipment Ground GV — Gas Valve IFM — Indoor Fan Motor IFR1 — Indoor Fan Relay (S.P.D.T.) N.O. (Cooling) IFR2 Indoor Fan Relay (S.P.S.T.) N.O. (Heating) IGN — Ignitor IM — Inducer Motor IR _ Inducer Relay (D.P.S.T.) N.O. LLS — Liquid Line Solenoid LPS — Low Pressure Switch LS — Limit Switch (S.P.S.T.) N.C. MV _ Main Valve OFM — Outdoor Fan Motor P — Pilot (Flame Sensing) PC1 — Printed Circuit Board (Blower) PC2 — Printed Circuit Board (Inducer) PI — Pilot Ignitor PS — Pressure Switch (S.P.D.T.) N.C. PV __ Pilot Valve TRAN - Transformer e o Field High Voltage Wiring Factory High Voltage Wiring Factory Low Voltage Wiring Field Low Voltage Wiring Marked Connection Unmarked Connection Internally Connected or Wirenut NOTES: 1. 230 volt operation as shown. For 208 volt operation reverse RED and ORN leads of transformer. 2. Symbols are an electncal representation only. 3. If any of the original wire, as supplied, must be replaced, use minimum 105° C wiring material. 4. Use copper wire only for field power supply leads. 5. Compressor and fan motors provided with inherent thermal protection. Fig. 20 - Typical 208/230-1-60 Wiring Diagram (Unit Size 018) Fig. 21 - Typical 208/230-1-60 Wiring Diagram (Unit Sizes 024-042) LEGEND ALS — Auxiliary Limit Switch (S P S.T ) C — Contactor CAP 1,2 — Capacitors CH — Crankcase Heater COMP — Compressor CTD — Compressor Time Delay EG — Equipment Ground FP — Pilot (Flame Sensing) GV - Gas Valve ICP — Ignitor Control IDR — Induced Draft Relay (S.P.S T.) IDM — Induced Draft Motor IFM — Indoor Fan Motor IFR — Indoor Fan Relay (S.P.S.T.) IP — Internal Protector (Auto Reset) LS — Limit Switch (S.P.S.T ) MV — Main Valve OFM — Outdoor Fan Motor PI — Pilot Ignitor PS — Pressure Switch (S.P.D.T.) PV — Pilot Valve RS - Rollout Switch (S.P.D.T.), TB — Terminal Block TDR — Time-Delay Relay (S P.S.T.) TRAN — Transformer «■ - “ Field High Voltage Wiring Factory High Voltage Wiring --Factory Low Voltage Wiring --------Field Low Voltage Wiring (3 Marked Connection O Unmarked Connection # Internally Connected or Wirenut Field Splice NOTES: 1. 230-v operation as shown. For 208-v operation reverse RED and ORN leads of transformer. 2. Transformer has internal automatic reset overload 3 If any of the original wire as supplied must be replaced, use minimum 105 C wiring material. 4. Use copper wire only for field power supply leads. 5 Compressor and fan motors provided with inherent thermal protection. Fig. 22 - Typical 208/230-1-60 Wiring Diagram (Unit Sizes 048,060) -32- TROUBLESHOOTING Cooling SYMPTOM CAUSE REMEDY Compressor and condenser fan will not start. Compressor is reenergized in less than 5 minutes Wait for 5 minutes from the time that the compressor was deenergized. Power failure Call power company. Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer or control relay Replace component Insufficient line voltage Determine cause and correct. Incorrect or faulty wiring Check wiring diagram and rewire correctly. Thermostat setting too high Lower thermostat setting below room temperature. Compressor will not start but condenser fan runs. Faulty wiring or loose connections in compressor circuit Check wiring and repair or replace. Compressor motor burner out, seized or internal overload open Determine cause. Replace compressor. Defective capacitor or overload Determine cause and replace. Compressor cycles (other than normally satisfying thermostat). Refrigerant overcharge or undercharge Evacuate and reclaim refrigerant from system and recharge to nameplate. Defective compressor Replace and determine cause. Insufficient line voltage Determine cause and correct. Blocked condenser Determine cause and correct. Defective capacitor or overload Determine cause and replace. Defective thermostat Replace thermostat Faulty condenser fan motor or capacitor Replace Restriction in refrigerant system Locate restriction and remove. Compressor operates continuously. Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size. Thermostat set too low Reset thermostat. Low refrigerant charge Locate leak, repair and recharge Air...