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TECHNICAL & SERVICE MANUAL
KGS1411 / CG1411
FILE NO.
Destination: U.S.A.
GAS HEATER AIR CONDITIONER
Indoor Model No. Product Code No. Outdoor Model No. Product Code No.
KGS 1411 1 852 062 56 CG 1411 1 714 734 00
Indoor Unit Outdoor Unit
KGS1411 CG1411
REFERENCE NO. SM700361
W
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IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operating When Installing… standards. As the installer or service person, it is an important …In a Ceiling or Wall part of your job to install or service the system so it operates safely and efficiently. Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong For safe installation and trouble-free operation, you wood or metal frame to provide added
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Table of Contents Page 1. OPERATING RANGE ................................................................................................................ 1 2. SPECIFICATIONS 2-1. Unit Specifications............................................................................................................ 2 2-2. Major Component Specifications...................................................................................... 4 2-3. Other Component Specifications...............................
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10. PROCEDURE FOR DISMANTLING THE UNIT 10-1. Procedure for Dismantling the Indoor Unit ....................................................................... 44 10-2. Procedure for Dismantling the Outdoor Unit..................................................................... 47 11. POINTS TO DIAGNOSE 11-1. Indoor Unit Alarm Signal .................................................................................................. 50 11-2. Manifold Pressure......................................
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1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Cooling Maximum 95°F (35°C) D.B. 115°F (46.1°C) D.B. 71°F (21.7°C) W.B. Minimum 67°F (19.4°C) D.B. 67°F (19.4°C) D.B. 57°F (13.9°C) W.B. Heating Maximum 80°F (26.7°C) D.B. 75°F (23.9°C) D.B. 67°F (19.4°C) W.B. 65°F (18.3°C) W.B. Minimum — D.B. 0°F (–17.8°C) D.B. — W.B. –2°F (–19°C) W.B. 1
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2. SPECIFICATIONS 2-1. Unit Specifications Indoor unit KGS1411 Outdoor unit CG1411 Power Source Cooling Heating Electric power source 115V 60Hz Employed gas — Natural gas (LP) Cooling Heating Voltage Rating 115V Performance Cooling Heating Capacity kW 2.58 4.1 / 2.9 / 1.8 8,800 14,000 / 9,900 / 6,150 3 3 Air circulation (High) ft /min (m /min) 282 (8.0) 300 (8.5) Moisture removal (High) Pints/h 2.2 — Electrical Rating Cooling Heating Available voltage range V 104 – 126 Running amperes A 8.2 5.
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Indoor unit KGS1411 Outdoor unit CG1411 Dimensions & Weight Indoor Unit Outdoor Unit Unit dimensions Height inch (mm) 10-5/8 (270) 23-7/32 (590) Width inch (mm) 31-11/16 (805) 28-1/2 (724) Depth inch (mm) 6-31/32 (177) 11-15/32 (291) Package dimensions Height inch (mm) 9-13/16 (249) 31-1/16 (789) Width inch (mm) 33-21/32 (855) 25-1/32 (636) Depth inch (mm) 13-5/16 (338) 14-29/32 (379) Weight Net lb. (kg) 17.6 (8.0) 85.7 (39.0) Shipping lb. (kg) 22.0 (10.0) 90.8 (41.0) 3 Shipping volume cu.ft (m
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2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor unit KGS1411 Control PCB Part No. POW-KGS14A, B Controls Microprocessor Control circuit fuse 115V Remote Control Unit RCS-IRS2U Fan & Fan Motor Type Cross-flow Q’ty … Dia. and length inch (mm) 1 … ø 95 / L617 (ø 3-3/4 / L24-9/32) Fan motor model … Q’ty KFV4-21HIP … 1P Nominal output W 15 Coil resistance (ambient temp. 68°F (20°C)) Ω BLU – BRN: 104.9 BLU – PNK: 128.0 Safety devices Type X23 Operating temp. Open °F (°C) 259 (126) ±4
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2-2-2. Outdoor Unit (1) Outdoor unit CG1411 Control PCB Part No. CG1411 Controls Microprocessor Control circuit fuse 115V 5A Gas Connection Employed gas Natural Gas (LP) Gas connection 1/2 Female Compressor Type Rotary (Hermetic) Compressor model C-1R71H2W Nominal output W 700 Compressor oil … Amount cc SUNISO 4GSD-T … 370 Coil resistance (ambient temp. 68°F (20°C)) Ω C – R: 0.879 C – S: 3.609 Safety devices Type External (OLR) Overload relay MRA98962-9200 Operating temp. Open °F (°C) 275 ± 9
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2-2-2. Outdoor Unit (2) Outdoor unit CG1411 Burner Type Ribbon burner Q’ty … Material, thickness inch (mm) 1 … Stainless steel, 0.0157 (0.4) Nozzle Q’ty … Material 1 … Brass Diameter ø inch (ø mm) 0.0807 (2.05 ± 0.05) Fan & Fan Motor Type Sirocco fan Q’ty … Dia. and length inch (mm) 1 … ø 3.346 (85) and 0.984 (25) Fan motor model … Q’ty FU2-051FIMP … 1 No. of poles … rpm 2 … (1,300 – 2,900) Nominal output W 6 Coil resistance (ambient temp. 68°F (20°C)) Ω 21.3 Safety devices Type Thermal fuse
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2-3. Other Component Specifications 2-3-1. Indoor Unit Indoor unit KGS1411 Transformer ATR-1581T2-U Rating Primary AC 115V, 60Hz Secondary 13.7V, 0.5A Capacity 6.85VA Coil resistance Ω (at 77°F (25°C)) Primary (WHT – WHT): 128 ± 20% Secondary (BRN – BRN): 2.28 ± 20% Thermal cut-off temp. 277°F (136°C) Thermistor (Coil sensor) DTN-TKS118B Resistance kΩ 32°F (0°C) 188 ± 4% Thermistor (Room sensor) DTN-TKS134B Resistance kΩ 77°F (25°C) 5.0 ± 3% DATA SUBJECT TO CHANGE WITHOUT NOTICE. 7
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2-3-2. Outdoor Unit Outdoor unit CG1411 Transformer (TR) 4FF4L510034000 Rating Primary AC 115V, 60Hz Secondary S1 DC 25.4V, 0.25A S2 DC 12.6V, 0.1A S3 AC 100V, 1Ma Capacity 5VA Coil resistance Ω (at 70°F (21°C)) Primary (ORG – ORG): 71.1 ± 10% Secondary (RED – RED): 5.79 ± 10% Secondary (BLU – BLU): 8.38 ± 10% Secondary (YEL – YEL): 257 ± 10% Thermal cut-off temp. 277°F (136°C) Power Relay (PR) DFU24D1F Coil rating DC 24V Coil resistance Ω (at 68°F (20°C)) 650 ± 10% Contact rating AC 250V, 20
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3. DIMENSIONAL DATA 3-1. Unit 3-1-1. Indoor Unit Indoor unit KGS1411 31-11/16 (805) 6-31/32 (177) Drain hose ø23/32 (18) Remote control unit 2-2/5 25/32 (18.5) (61) 2-5/16 3-29/32 (99.5) (58.5) Narrow tube ø1/4 (6.35) Center of tubing Wide tube ø3/8 (9.52) hole (2 places) Unit: inch (mm) 9 1-5/8 (41.0) 1-5/8 (41.0) 10-5/8 (270) 6-7/32 (172.5)
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3-1-2. Outdoor Unit Outdoor unit CG1411 4-11/16 16-23/32 4-9/16 (119) (425) (116) 2-9/16 Holes for anchor bolts (65) (4-ø15/32) Narrow tube service valve ø1/4 (6.35) Wide tube service valve ø3/8 (9.52) 2-13/32 9-1/16 (30) (230) 25-31/32 (660) 5-21/32 2-17/32 (144) (64) 5-5/32 (131) Unit: inch (mm) 10-1/4 (260) NOTE Location of Service Valves Service valves are located behind the side panel. Wide tube service valve See the illustration at right. ø3/8 (9.52) Narrow tube service valve ø1/4 (6.35
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3-2. Internal Components 3-2-1. Indoor Unit Indoor unit KGS1411 Operation selector Air filter PCB A PCB B Transformer Air intake grille Air cleaner filter Terminal block Fan motor Anti-vibration rubber for motor Heat-exchanger sensor Ground screw Flap Attachment plate Heat of the conduit Cross-flow fan exchanger Drain pan Indicator Vertical flap Louver motor Refrigerant Wireless remote tubing Room temperature sensor control unit Drain hose 11
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3-2-2. Outdoor Unit Outdoor unit CG1411 On/Off valve Reversing PTC Transformer Outdoor valve starter Printed fan motor Capacitor circuit board capacitor for compressor (solid state controller) Reversing Exhaust Bimetal valve Propeller Thermal Refrigerant chimney thermostat Combination fan fuse heater gas valve Terminal block Thermistor 2 Manual shut-off valve Flame sensor probe Ignition electrode Combustion Burner blower Thermistor 1 Compressor Heat exchanger Ignition transformer Gas conduit
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3-3. Major Components Outdoor unit CG1411 (1) Combination Gas Valve (Proportional Control Valve) Type: Combination Gas Valve Model: UP13-27 Material: Aluminum Die-Cast Unit: inch (mm) Electro- magnetic 0.590 valve 1 Body (15) 0.906 0.708 1.433 2.067 (23) (18) (36.4) (52.5) Electro- 1.948 0.925 magnetic (49.5) (23.5) valve 2 Proportional Adjuster control valve (2) Gas Nozzle Natural Gas LPG Material Body: Aluminum Die-Cast / Nozzle: Brass Nozzle Dia. 0.0807 inch (2.05 mm) 0.0630 inch (1.60 m
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(3) Main Burner Type: Ribbon Burner Material: Stainless Steel, Thickness: 0.0157 inch (0.4 mm) Unit: inch (mm) 0.433 (11) 6.457 (164) 0.984 (25) (4) Combustion Blower Combustion blower fan Outer diameter: 3-11/32 Combustion blower motor FU2-051F1MP 3.764 (95.6) Fan casing 14 5.185 (131.7) 1.578 (40) 2.165 (55) 2.756 (70) 1.597 (40.5)
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(5) Refrigerant Heater Unit: inch (mm) Aluminum Copper tube Outer dia. 5/16 6.693 (170) 3.150 (80) Packing (both sides) Ceramic fiber Side wall (both sides) Aluminum-coated steel sheet 15 10.827 (275) Refrigerant outlet Refrigerant inlet
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4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Indoor unit KGS1411 Outdoor unit CG1411 COOLING CYCLE Indoor unit Outdoor unit ON/OFF valve 2 Accumulator Compressor Wide tube Wide tube service valve O.D. Reversing Muffler 3/8" (9.52 mm) valve ( ) Check valve 2 Heat Capillary exchanger tube Heat Refrigerant exchanger heater ON/OFF valve 1 Narrow tube Cooling service valve cycle ( ) Narrow tube O.D. Strainer Check Capillary tube 1/4" (6.35 mm) valve 1 HEATING CYCLE Indoor u
