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HIGH EFFICENCY
AIR HANDLER
Models:
• DR024GHFE18HT2
• DR036GHFE18HT2
• DR060GHFE18HT2
- R-410A REFRIGERANT
- 208~230 V, 1 Phase, 60 Hz
- 18 SEER
IMPORTANT NOTICE: Thank you very much for purchasing this Air Conditioner. Please read this manual carefully before
installing or operating your new air conditioning system. Be sure to save this manual for future reference.
CENTRAL SPLIT AIR CONDITIONER
Technical &
Service Manual
v3.0
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Summary of Contents for Pioneer DR024GHFE18HT2
- Page 1 Technical & Service Manual v3.0 HIGH EFFICENCY AIR HANDLER Models: • DR024GHFE18HT2 • DR036GHFE18HT2 • DR060GHFE18HT2 - R-410A REFRIGERANT - 208~230 V, 1 Phase, 60 Hz - 18 SEER IMPORTANT NOTICE: Thank you very much for purchasing this Air Conditioner. Please read this manual carefully before...
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Page 2: Safety Summary
SAFETY SUMMARY IMPORTANT NOTICE ● We pursue a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice. ● We cannot anticipate every possible circumstance that might involve a potential hazard. ●... - Page 3 ● If circuit breaker or fuse is often activated, stop the system and contact your service contractor. ● Check that the ground wire is securely connected. If the unit is not correctly grounded, it will lead to electric shock. Do not connect the ground wiring to gas piping, water piping, lightning conductor or ground wiring for telephone.
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Page 4: Table Of Contents
Table of Contents 1. General ..............................1 1.1 Features ............................1 1.2 Product lineup ..........................2 1.3 Nomenclature ..........................2 1.4 Unit installation ..........................3 1.5 Working range ..........................3 1.6 Product appearance ........................4 2. Specifications............................5 3. Outlines and dimensions........................7 4. Electrical data ............................9 5. Blower data ............................10 6. -
Page 5: General
1. General 1.1 Features Being equipped with TXV metering, supporting cooling and heating. Multi-speed ECM blower motor Selecting electric heater kits within available models. Up to 0.8W.C ESP. Being in accordance with ETL AHRI. -
Page 6: Product Lineup
1.2 Product lineup Model (Btu/h) Type ● ● ● Indoor unit ● : available model 1.3 Nomenclature D R 024 G H F I 18 R T 2 Control Signal Voltage: 2: 24 VAC Type of Control Circuit: T: Standard Thermostat Type Generation Code SEER Rating (when matched with proper OD unit): 18 Internal Specks Code:... -
Page 7: Unit Installation
1.4 Unit installation 1:1 system is the only compatible combination. (Only one indoor unit can be connected with one outdoor unit.) 1.5 Working range Power Supply Working Voltage 198V ~ 253V Voltage Imbalance Within a 3% deviation from each voltage at the main terminal of outdoor unit Starting Voltage Higher than 85% of the Rated Voltage Storage condition... -
Page 8: Product Appearance
1. GENERAL 1.6 Product appearance Model Indoor Unit (Btu/h) -
Page 9: Specifications
2. SPECIFICATIONS 2. Specifications DR036GHFE18HT2 DR060GHFE18HT2 DR024GHFE18HT2 Indoor Model Type Duct Duct Duct 208~230/1/60 Power Supply V/ph/Hz 208~230/1/60 208~230/1/60 Energy Star 56000 Capacity Btu/h 24000 36000 Capacity Range (MIN-MAX) 18300-59400 Btu/h 6700-26000 11800-36800 2.50 Cooling 3.20 2.80 8.53 Btu/h/W 10.90 9.55... - Page 10 2. SPECIFICATIONS DR060GHFE18HT2 Indoor Model DR024GHFE18HT2 DR036GHFE18HT2 Number of Circuits Φ9.52 (3/8') Liquid Line OD mm/in Φ9.52 (3/8') Φ9.52 (3/8') Vapor Line OD mm/in Φ15.88 (5/8') Φ19.05 (3/4') Φ22.22 (7/8') Refrigerant Max. Pipe Length Piping Max. Difference in Level DIMENSIONS & WEIGHT 500×1170×550...
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Page 11: Outlines And Dimensions
3. OUTLINES AND DIMENSIONS 3. Outlines and dimensions 24K/36K Unit : in.(mm) - Page 12 3. OUTLINES AND DIMENSIONS Unit : in.(mm) 24(610)
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Page 13: Electrical Data
4. Electrical data Power supply Applicable voltage Indoor Nominal unit Nominal Frequency Voltage (V) Umin (V) Umax (V) Sensitive (Hz) Current (A) Current (mA) 24K/36K 208/230 208/230 NOTE: 1. The above compressor data is based on 100% capacity combination of indoor units at the rated operating frequency. -
Page 14: Blower Data
5. BLOWER DATA 5. Blower data Airflow performance data is based on cooling performance with a coil and no filter in place. Check the performance table for appropriate unit size selection. External static pressure should stay within the minimum and maximum limits shown in the table below in order to ensure proper operation of both cooling, heating , and electric heating operation. - Page 15 5. BLOWER DATA Air Flow Table External Static Pressure in.H2O[KPa] Handler Motor Speed Model 0[0] 0.1[0.02] 0.2[0.05] 0.3[0.07] 0.4[0.1] 0.5[0.12] 0.6[0.15] 0.7[0.17] 0.8[0.20] Tap (2) SCFM 1606 1564 1507 1470 1415 1381 1323 1290 1230 （Medium Watts Low） Tap (3) SCFM 1828 1794...
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Page 16: Sound Data
6. Sound pressure data Indoor unit Model Model 3.28ft. (1.0m) ahead of the outlet of the wind 3.28ft. (1.0m) ahead of the outlet of the wind Test condition Test condition tunnel; 3.28ft. (1.0m) high from the bottom of tunnel; 3.28ft. (1.0m) high from the bottom of the unit. -
Page 17: Refrigerant Cycle
7. REFRIGERANT CYCLE 7. Refrigerant cycle Indoor unit Cooling cycle 24K/36K/60K Heating cycle List of components Hexagon nut Indoor heat exchanger... -
Page 18: Wiring Diagram
8. WIRING DIAGRAM 8. Wiring diagram 8.1 Electrical wiring diagram Indoor unit 24K/36K/60K Electric wiring diagram 2082571.E NOTES: 1. Use copper wire (75℃ Min) only between disconnect switch and unit. 2. To be wired in accordance with NEC and local codes. 3. -
Page 19: Control Board Picture
8. WIRING DIAGRAM 8.2 Control board picture 24K/36K/60K Main Control Board Description Description AC power L2 Thermostat AC power L1 Electrical heat kit L1 for fan motor Dip switch for blower speed L1 for transformer Fan motor control L2 for transformer Fuse AC 24V from transformer L2 for fan motor... -
Page 20: Common Wiring
8. WIRING DIAGRAM 8.3 Common wiring Recommended Wire Size Power Fuse or Model Transmitting Thermostat Power Supply Source Circuit (Capacity) Cable Size Signal Size Rated Current Nominal Sensitive Cable Size Breaker (A) Current (mA) 24K/36K 208/230V ~/60Hz 3×16AWG 4×16AWG 5×18AWG 208/230V ~/60Hz 3×16AWG 4×16AWG... -
Page 21: Field Setting
9. FIELD SETTING 9. Field setting Static Pressure Setting: Blower Dip Switch S2 Fan Speed Static Pressure Static Pressure Static Pressure Speed Select Setting (W.C.[kPa]) 24K (W.C.[kPa]) 36K (W.C.[kPa]) 60K Medium Low 0.1[0.02] 0.1[0.02] 0.1[0.02] Medium 0.18[0.045] 0.24[0.057] 0.28[0.07] (Default setting) Medium High 0.25[0.8] 0.5[0.12]... -
Page 22: Checking Components
10. CHECKING COMPONENTS 10. Checking components 10.1 Check refrigerant system TEST SYSTEM FLOW Conditions: ① Compressor is running. ② The air condition should be installed in good ventilation. Tool: Pressure Gauge Technique: ① see ② feel ③ test See ----- Tube defrost. Feel ----- The difference between tube’s temperature. - Page 23 10. CHECKING COMPONENTS Test system flow Cooling mode Test system pressure. The pressure on the Is the low pressure high side. normal at service part ? Recharge refrigerant after air purging with If the pressure is The pressure on the the vacuum close to static low side.
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Page 24: Check Parts Unit
10. CHECKING COMPONENTS 10.2 Check unit parts 1. Indoor unit fan motor Duct motor model 24K: ZWK702B006073 36K: ZWK702B500026 60K: ZKSD-560-8-58 Test in resistance. TOOL: Multimeter. Test the resistance of the main winding. The indoor fan motor fails if the resistance of main winding is 0(short circuit)or∞... - Page 25 10. CHECKING COMPONENTS 3. Fuse Checking for continuity of fuse on PCB ASS’Y. Remove the PCB ASS’Y from the electrical component box. Then pull out the fuse from the PCB ASS’Y (Fig.1) Fuse PCB Ass'Y Check for continuity by a multimeter as shown below. Fuse...
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Page 26: Disassembly And Assembly For Compressor And Motor
11. DISASSEMBLY AND ASSEMBLY FOR MOTOR 11. Disassembly and assembly for motor Indoor unit 24K/36K/60K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction Use screwdriver to remove the electric box cover and 1. -
Page 27: Control Logic Description
12. Heater Kit 12. Heater Kit (Optional) MAX.Fuse or Breaker Electric Electric MIN.Circuit Ampacity Fan Speed Tap (HACR) Ampacity Heat Kit Handler Heat Model Model (kW) 230VAC 208VAC 230VAC 208VAC 21-4245-01 28.3 25.9 ● ● ● ● 21-4245-02 40.7 37.2 ●... - Page 28 3250 NW 107 Avenue, Doral, FL 33172 - USA : (305) 513-4488 : (305) 513-4499 E-mail : info@pd-hvac.com Website : www.pd-hvac.com Pioneer product line, parts, and supplies are available online for convenient ordering at: www.highseer.com www.pioneerminisplit.com Scan the below code to visit our support page where you can find more installation materials: Copyright 2020, Parker Davis HVAC International, Inc., All rights reserved.
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