Daikin DCG Series Service Instructions Manual
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Daikin DCG Series Service Instructions Manual

Commercial package units with r-410a refrigerant. 7.5 - 12.5 tons & accessories
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See also: Instruction and Installation Manual , Installation and Maintenance Manual
Service Instructions
DCG Gas Electric/DCC Cooling/DCH Heat Pumps
Commercial Package Units
with R-410A Refrigerant
7.5 - 12.5 Tons & Accessories
This manual is to be used by qualified, professionally trained HVAC
technicians only. Daikin does not assume any responsibility for property
damage or personal injury due to improper service procedures or
services performed by an unqualified person.
RSD6412007r50
July 2018
Copyright ©2013-2018

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Summary of Contents for Daikin DCG Series

  • Page 1 7.5 - 12.5 Tons & Accessories This manual is to be used by qualified, professionally trained HVAC technicians only. Daikin does not assume any responsibility for property damage or personal injury due to improper service procedures or services performed by an unqualified person.

  • Page 2: Table Of Contents

    To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product. For further assistance, please contact: CONSUMER INFORMATION LINE - DAIKIN BRAND PRODUCTS TOLL FREE 1-855-770-5678 (U.S. only) email us at: customerservice@daikinac.com fax us at: (713) 856-1821 (Not a technical assistance line for dealers.)

  • Page 3: Important Information

    IMPORTANT INFORMATION SAFE REFRIGERANT HANDLING While these items will not cover every conceivable situation, they should serve as a useful guide. WARNING Refrigerants are heavier than air. They can "push out" the oxygen in your lungs or in any enclosed space.To avoid possible difficulty in breathing or death: •...
  • Page 4 4,5,6 7,8,9 15 16 Revision Levels Major & Minor Brand Factory-Installed Options Daikin Non-powered convenience outlet Configurat i on Powered convenience outlet Low-ambient kit Return air smoke detector Supply air smoke detector Non-powered convenience outlet;...
  • Page 5 PRODUCT IDENTIFICATION Factory-Installed Options • Stainless-Steel Heat Exchanger (Gas units only): A tubular heat exchanger made of 409-type stainless steel is installed in the unit. • to 0°F outside air temperature. • • • Non-powered Convenience Outlet: A 120V, 15A, GFCI outlet makes it easier for technicians to service the unit once an electrician runs power to the outlet.
  • Page 6 PRODUCT IDENTIFICATION DCH**XXX**XXX DCH090[XXX,090][3,4,7]BXXXAA DCH102XXX[3,4,7]BXXXAA Daikin Commercial Package Heat Pump, Multiposition heat pump units, 208V-230 3 Phase, 460V 3 Phase & 575V 3 Phase. Belt Drive. Initial DCH120XXX[3,4,7]BXXXAA release Daikin models with the addition of a crankcase heater where necessary. DCH150XXX[3,4,7]BXXXAA Daikin Commercial Package Heat Pump, Multiposition heat pump units, 208V-230 3 Phase, 460V 3 Phase &...
  • Page 7 Daikin Commercial Package Heat Pump, Multiposition heat pump units, 460V 3 Phase. Two Speed Belt Drive. Factory Installed Options DCH150XXX4VHXAAB (Disconnect Switch (non-fused), Non-powered convenience outlet) Daikin Commercial Package Heat Pump, Multiposition heat pump units, 460V 3 Phase. Belt Drive. Factory Installed Options (Hinge Panels (3- DCH090XXX4BXDBAB 12 1/2 Tons), Powered convenience outlet) DCH102XXX3VWXDAB Daikin Commercial Package Heat Pump, Multiposition heat pump units, 230V 3 Phase.
  • Page 8 DCH1200303WBXCAA BACnet Protocol, Low Ambient Kit, High Static Factory Installed, Electric Heater Kit) Daikin Commercial Package Heat Pump, Multiposition heat pump units, 460V 3 Phase 2 Speed Belt Drive. Factory Installed Options (Ultra Low leak Down DCH0900304VJXFAA Flow Economizer, Disconnect Switch (non-fused), Non Powered Convenience Outlet, Low Ambient Kit, Electric H Daikin Commercial Package Heat Pump, Multiposition heat pump units, 208-230V 3 Phase 2 Speed Belt Drive.
  • Page 9 Powered Convenience Outlet) Daikin Com m erc ial P ac k age Cooler, M ultipos iton c ooling, 208-230V 3 P has e, B elt Drive. Fac tory ins talled options . (B A Cnet P rotoc ol, Electric DCC[102,120]0163B B XXA B Heater Kit) Daikin Com m erc ial P ac k age Cooler, M ultipos ition c ooling, 208-230V 3 P has e, B elt Drive.
  • Page 10 DCC1500303BFXXAA Standard Aluminized Heat Exchanger,Non-powered convenience outlet) Daikin Commercial Package Cooler, Multiposition cooling, 460V 3 Phase,2 Speed Belt Drive. Factory Installed Options. (Hinge Panels (3-12 1/2), Non- DCC102XXX4VXDLAA powered convenience outlet; Low Ambient Kit; Return & Supply air smoke detectors) Daikin Commercial Package Cooler, Multiposition cooling, 575V 3 Phase, Belt Drive.
  • Page 11 Daikin Commercial Package Cooler, Multiposition cooling, 460V 3 Phase, Belt Drive. Factory Installed Options. (Ultra Low Leak Down Flow Economizer, DCC120XXX4VRXXAC Disconnect Switch (non-fused), DDC bACnet Protocol) Daikin Commercial Package Cooler, Multiposition cooling, 460V 3 Phase, 2 Speed Belt Drive. Factory Installed Options. (Ultra Low Leak Down Flow DCC102XXX4VJXCAA Economizer, Disconnect Switch (non-fused), Low Ambient Kit) Daikin Commercial Package Cooler, Multiposition cooling, 460V 3 Phase, High Static Belt Drive.
  • Page 12 Daikin Commercial Package Gas, R410A gas/electric units, 208-230V 3 Phase. Belt Drive. Factory installed options. (Downflow Economizer, DCG[120,150]2103BAXG[AA,AB] Non-Powered Convenience Outlet, Return Air Smoke Detector) Daikin Commercial Package Gas, R410A gas/electric units, 460V 3 Phase, Belt Drive. Factory installed options. (Downflow Economizer, Non- DCG1202104BAXJAC Powered Convenience Outlet) Daikin Commercial Package Gas, R410A gas/electric units, 460V 3 Phase, Belt Drive.
  • Page 13 DCG1502103VAXWAA Economizer,Low Ambient Kit, Return & Supply Air Smoke Detector) DCG1022103VJXDAA Daikin Commercial Package Gas, R410A gas/electric units, 208V-230V 3 Phase.Two-Speed Belt Drive. Factory Installed Options. ( Ultra Low- DCG1202103VJXDAB Leak Downflow Economizer, Disconnect Switch (non-fused), Return Air Smoke Detector) Daikin Commercial Package Gas, R410A gas/electric units, 208V-230V 3 Phase.Belt Drive.
  • Page 14 Model # Description DCG[090,102]210[3,4,7]BJXA[AA,AB,AC] Daikin Commercial Package Gas, R410A gas/electric units, 208-230V, 460V & 575V 3 Phase. Belt Drive. Factory installed options. (Downflow DCG[120,150]210[3,4,7]BJXA[AA,AB,AC] Economizer, Disconnect switch (non-fused), Non-powered convenience outlet) Daikin Commercial Package Gas, R410A gas/electric units, 460V 3 Phase. Belt Drive. Factory installed options. (Downflow Economizer,...
  • Page 15 Daikin Commercial Package Gas, R410A gas/electric units, 230V 3 Phase. 2 speed belt drive. Factory Installed Options. (Non-powered DCG0902103VXXAAA Convenience Outlet) Daikin Commercial Package Gas, R410A gas/electric units, 230V 3 Phase. 2 speed belt drive. Factory Installed Options. (Ultra Low-leak DCG1202103VABQAB Downflow Economizer, Disconnect Switch (non-fused), Phase Monitor, Powered Convenience Outlet, Low Ambient Kit, Return Ai Daikin Commercial Package Gas, R410A gas/electric units, 230V 3 Phase.
  • Page 16 Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase. belt drive. Factory Installed Options. (Low-Leak Downflow DCG1202103BVDBAB Economizer, Hinge Panels (3-12 1/2 Tons), Powered convenience outlet) Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase. belt drive. Factory Installed Options. (Return & Supply air Smoke DCG0902103BXXZAB Detectors) Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase.
  • Page 17 DCG1202104WWXCAC Downflow Economizer; Disconnect Switch (non-fused),Low ambient Kit) DCG0902103VXDXAA Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase. Two-Speed Belt Drive. Factory Installed Options. (Hinge Panels (3 - DCG1022103VXDXAA 12 1/2 Tons)) Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase. Two-Speed Belt Drive. Factory Installed Options. (Non-powered...
  • Page 18 DCG1202103VHXAAB fused), Non-Powered Convenience Outlet) Daikin Commercial Package Gas, R410A gas/electric units, 460V 3Phase. High Static Belt Drive. Factory Installed Options. (Low Leak Down Flow DCG1502104WWDOBA Economizer, Disconnect Switch (non-fused), Hinged Panels, Powered Convenience Outlet, Return & Supply Air Smoke Detector) Daikin Commercial Package Gas, R410A gas/electric units, 460V 3Phase.
  • Page 19 Daikin Commercial Multiposition Package Gas Model # Description Daikin Commercial Package Gas, R410A gas/electric units, 460V 3Phase. High Static Belt Drive. Factory Installed Options. (Ultra Low Lek Down Flow DCG1202104WJKBAC Economizer, Disconnect Switch (non-fused), Hinged Panels, Stainless Steel Heat Exchnager, Powered Convenience Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase.
  • Page 20 Daikin Commercial Multiposition Package Gas Model # Description Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase. High StaticTwo-Speed Belt Drive. Factory Installed Options. (Ultra Low Leak DCG1502103WAXXBA Down Flow Economizer) Daikin Commercial Package Gas, R410A gas/electric units, 230V 3Phase. High Static Two-Speed Belt Drive. Factory Installed Options. (Disconnect DCG1502104WMSBBA Switch (non-fused);...
  • Page 21 Daikin Commercial Multiposition Package Gas Model # Description Daikin Commercial Package Gas, R410A gas/electric units, 460V 3Phase. Two-Speed Belt Drive. Factory Installed Options. (Disconnect Switch (non- DCG1502104VHXABA fused); Non-powered Convenience Outlet) Daikin Commercial Package Gas, R410A gas/electric units, 460V 3Phase. Two-Speed Belt Drive. Factory Installed Options. (Disconnect Swtich (non- DCG0902104VHXAAA fused);...

  • Page 22: Product Design

    PRODUCT DESIGN • UNIT LOCATION When the unit is heating, the temperature of the return air entering the unit must be between 50° F and 100° F. ROUND EVEL NSTALLATIONS WARNING • When the unit is installed on the ground adjacent to the O PREVENT POSSIBLE EQUIPMENT DAMAGE PROPERTY DAMAGE building, a level concrete (or equal) base is recom-...
  • Page 23 PRODUCT DESIGN CLEARANCES NSTALLATIONS Curb installations must comply with local codes and should be done in accordance with the established guidelines of the National Roofing Contractors Association. Proper unit installation requires that the roof curb be firmly and permanently attached to the roof structure. Check for adequate fastening method prior to setting the unit on the curb.
  • Page 24 PRODUCT DESIGN CAUTION WARNING O PREVENT IMPROPER AND DANGEROUS OPERATION DUE TO WIRING HIGH VOLTAGE ! ERRORS LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING O AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL CONTROLS ERIFY PROPER OPERATION AFTER SERVICING SHOCK DO NOT TAMPER WITH FACTORY WIRING INTERNAL POWER AND CONTROL WIRING OF THESE UNITS...
  • Page 25 PRODUCT DESIGN DIAMETER 0.875” HOLE DIAMETER 0.375” HOLE HIGH VOLTAGE ENTRANCE 10 3/16” LOW VOLTAGE ENTRANCE Power Wiring 26 ½” Thermostat Wiring ELECTRICAL ENTRANCE LOCATIONS Unit is equipped with a Low Voltage Terminal Block and has Single Point wiring to the contactor or power block if equipped. Power and Low Voltage Block Locations for 2 Speed Models OLTAGE...

  • Page 26: System Operation

    SYSTEM OPERATION DCG***XXX**XXX FOR YOUR SAFETY READ BEFORE OPERATING WARNING: Improper If you do not follow these instructions exactly, alteration, service or a fire or explosion may result causing property maintenance can damage, personal injury or loss of life. cause injury or property damage.
  • Page 27 SYSTEM OPERATION DCG/DCC***XXX**XXX Typical Package Cooling or Package Gas Either a thermostatic expansion valve or restrictor orifice assembly may be used depending on model. Refer to the parts catalog for the model being serviced. Restrictor Orifice Assembly in Cooling Operation In the cooling mode the orifice is pushed into its seat forcing refrigerant to flow through the metered hole in the center of the orifice.
  • Page 28 SYSTEM OPERATION DCH***XXX**XXX Typical Package Heat Pump Reversing Valve (Energized) Indoor Outdoor Coil Coil Accumulator COOLING CYCLE Reversing Valve (De-Energized) Indoor Outdoor Coil Coil Accumulator HEATING CYCLE...
  • Page 29 SYSTEM OPERATION Direct Spark Ignition (DSI) Systems DCG units are equipped with a direct spark ignition system. Ignition is provided by 22,000 volt electronic spark. A flame HIGH VOLTAGE! sensor then monitors for the presence of flame and closes the Disconnect ALL power before servicing gas valve if flame is lost.
  • Page 30 SYSTEM OPERATION Natural Gas Connection GAS SUPPLY PIPING WARNING Natural Gas Capacity of Pipe in Cubic Feet of Gas Per Hour (CFH) O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER Length of Nominal Black Pipe Size (inches) INSTALLATION ADJUSTMENT ALTERATION SERVICE OR MAINTENANCE Pipe in Feet...
  • Page 31 SYSTEM OPERATION has been dissipated in the air. Be certain there is no open flame in the vicinity during air bleeding procedure. The unit is placed in operation by closing the main electrical disconnect DOOR switch for the unit. PROPANE GAS INSTALLATIONS WARNING PROVIDE CLEARANCE O AVOID PROPERTY DAMAGE...
  • Page 32 SYSTEM OPERATION TYPICAL PROPANE PIPING PROPANE GAS PIPING CHARTS 5 to 15 PSIG First Stage (20 PSIG Max.) Sizing Between First and Second Stage Regulator Regulator Continuous Maximum Propane Capacities listed are based on 1 PSIG Pressure Drop at 10 11"...
  • Page 33 SYSTEM OPERATION 6. All pipe connections should be sealed with a pipe thread OCATION AND NSTALLATION compound, which is resistant to the fuel used with the The gas supply piping location and installation for roof top furnace. A soapy water solution should be used to check units must be in accordance with local codes or, in the all joints for leaks.
  • Page 34 SYSTEM OPERATION STARTUP, ADJUSTMENTS, AND CHECKS WARNING STANDARD HIGH VOLTAGE! SIDE DRAIN DRAIN PLUG O AVOID PERSONAL INJURY OR DEATH DUE TO (FACTORY-INSTALLED) ELECTRICAL SHOCK BOND THE FRAME OF THIS UNIT TO THE BUILDING ELECTRICAL GROUND BY USE OF THE Drain Pan (Side View) GROUNDING TERMINAL PROVIDED OR OTHER ACCEPTABLE MEANS...
  • Page 35 SYSTEM OPERATION BSTRUCTIONS LEARANCE AND IRING NOTE: Airflow setting below 300 CFM /Ton is not recommended, as evaporator freezing or poor unit Remove any extraneous construction and shipping materials performance is possible. that may be found during this procedure. Rotate all fans manually to check for proper clearances and that they rotate freely.
  • Page 36 SYSTEM OPERATION Heat Exchanger and Burner Orifice TART ROCEDURE AND HECKLIST FOR PEED ODELS Specifications Models with a V in the 11th position of the model number. NOTE: Gas appliances located more than 2000 feet above sea level must be derated 4% per 1000 feet of total For 2 speed models, the indoor blower will operate on low elevation and that variance in gas heating value and speed when in “Fan Only”...
  • Page 37 SYSTEM OPERATION heat exchanger tubes were plugged and the flame was rolling quence. A third purge and spark sequence will be out instead of entering the tubes. It has a manual push-button initiated if the second attempt is unsuccessful. If the third reset that cannot be actuated until the limit control has attempt is unsuccessful, the controller will close the gas cooled.
  • Page 38 SYSTEM OPERATION HEAT PUMP OPERATION WARNING OOLING YCLE HIGH VOLTAGE! When the heat pump is in the cooling cycle, it operates ISCONNECT ALL POWER BEFORE SERVICING OR exactly as a Summer Air Conditioner unit. In this mode, all the INSTALLING THIS UNIT ULTIPLE POWER SOURCES MAY charts and data for service that apply to summer air condition- BE PRESENT...
  • Page 39 SYSTEM OPERATION During operation the power to the circuit board is controlled by a temperature sensor, which is clamped to a feeder tube entering the outdoor coil. Defrost timing periods of 30,60 and 90 minutes may be selected by connecting the circuit board jumper to 30, 60 and 90 respectively.

  • Page 40: Scheduled Maintenance

    SCHEDULED MAINTENANCE MAINTENANCE ILTERS CAUTION WARNING O PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OF HIGH VOLTAGE! EQUIPMENT EFFICIENCY OR EQUIPMENT DAMAGE DUE TO DUST AND LINT ISCONNECT ALL POWER BEFORE SERVICING OR BUILD UP ON INTERNAL PARTS, NEVER OPERATE UNIT WITHOUT AN AIR INSTALLING THIS UNIT ULTIPLE POWER SOURCES MAY FILTER INSTALLED IN THE RETURN AIR SYSTEM.
  • Page 41 SCHEDULED MAINTENANCE LAME ENSOR UALIFIED ERVICER A drop in the flame current can be caused by a nearly invisible coating on the flame sensor. This coating, created by the fuel or combustion air supply, can be removed by carefully cleaning the flame sensor with steel wool. NOTE: After cleaning, the microamp signal should be stable and in the range of 4 - 6 microamps DC.

  • Page 42: Servicing

    DCC***XXX**XXX SERVICING COOLING ANALYSIS CHART System Unsatisfactory No Cooling Complaint Operating Cooling Pressures POSSIBLE CAUSE Test Method DOTS IN ANALYSIS Remedy GUIDE INDICATE "POSSIBLE CAUSE" • Power Failure Test Voltage • • • Blown Fuse Inspect Fuse Size & Type •...
  • Page 43 DCG***XXX**XXX SERVICING GAS HEATING ANALYSIS CHART Com plaint No He at Uns atis factor y He at POSSIBLE CAUSE Te st Me thod DOTS IN ANALYSIS Re m e dy GUIDE INDICATE "POSSIBLE CAUSE" • Pow er Failure Test V oltage •...
  • Page 44 SERVICING Table of Contents Checking Voltage .......... 33 S-106 Overfeeding ........... 45 Checking Wiring ..........34 S-108 Checking Superheat ........45 Checking Thermostat, Wiring & Anticipator .. 34 S-109 Checking Subcooling ........46 S-3A Thermostat & Wiring ........34 S-110 Checking Expansion Valve Operation ...

  • Page 45: Checking Voltage

    SERVICING S-1 CHECKING VOLTAGE Three phase units require a balanced 3 phase power supply to operate. If the percentage of voltage imbalance exceeds 3% the unit must not be operated until the voltage condition is corrected. Max. Voltage Deviation HIGH VOLTAGE! Disconnect ALL power before servicing % Voltage = From Average Voltage...

  • Page 46: Checking Wiring

    SERVICING S-2 CHECKING WIRING 4. Check the continuity of the thermostat and wiring. Repair or replace as necessary. S-3B COOLING ANTICIPATOR HIGH VOLTAGE! The cooling anticipator is a small heater (resistor) in the Disconnect ALL power before servicing thermostat. During the "off" cycle, it heats the bimetal or installing this unit.

  • Page 47: Checking Transformer & Control Circuit

    SERVICING S-4 CHECKING TRANSFORMER NOTE: Most single phase contactors break only one side of the line (L1), leaving 115 volts to ground present at most AND CONTROL CIRCUIT internal components. 1. Remove the leads from the holding coil. 2. Using an ohmmeter, test across the coil terminals. HIGH VOLTAGE! If the coil does not test continuous, replace the relay or Disconnect ALL power before servicing...

  • Page 48: Checking Fan Relay Contact

    SERVICING T1-T2, T1-T3, and T2-T3 - If voltage readings are not 1. Set the thermostat to the fan "on" position. the same as in "A", replace contactor. 2. Check for 24 volts at the C and G terminals of the EBTDR. 3.

  • Page 49: Checking Loss Of Charge Protection

    SERVICING 5. Using a VOM, check for 240 volts from L1 at contactor to The low pressure control is designed to cut-out (open) at terminal 4 of relay. Should read 240 volts. Next check approximately 22 PSIG. It will automatically cut-in (close) from L1 at contactor to terminal 2 of relay.

  • Page 50: Checking Low Pressure Control

    SERVICING RELAY, START S-13 CHECKING LOW PRESSURE CONTROL A potential or voltage type relay is used to take the start The low pressure control senses the pressure in the suction capacitor out of the circuit once the motor comes up to line and will open its contacts on a drop in pressure.

  • Page 51: S-15B Capacitance Check

    SERVICING S-15B CAPACITANCE CHECK 1. Remove the motor leads from its respective connection points and capacitor (if applicable). Using a hookup as shown below, take the amperage and 2. Check the continuity between each of the motor leads. voltage readings and use them in the formula: 3.

  • Page 52: S-17B Ground Test

    SERVICING 2. Identify the leads and using a Megger, Hi-Potential Ground Tester, or other suitable instrument which puts out a voltage between 300 and 1500 volts, check for a HIGH VOLTAGE! ground separately between each of the three leads and Disconnect ALL power before servicing ground (such as an unpainted tube on the compressor).

  • Page 53: Testing Crankcase Heater (Optional Item)

    SERVICING 3. Connect good capacitors of the right MFD and voltage S-21 CHECKING REVERSING VALVE AND rating into the circuit as shown. SOLENOID 4. With power ON, close the switch. Occasionally the reversing valve may stick in the heating or cooling position or in the mid-position.

  • Page 54: Testing Defrost Thermostat

    SERVICING 8. If not as above, replace control board. ALFUNCTIONING EVERSING ALVE HIS MAY BE DUE TO 9. Set thermostat to off position and disconnect power 1. Solenoid not energized - In order to determine if the before removing any jumpers or wires. solenoid is energized, touch the nut that holds the solenoid cover in place with a screwdriver.

  • Page 55: Refrigeration Repair Practice

    SERVICING S-101 LEAK TESTING (NITROGEN OR NITROGEN-TRACED) HIGH VOLTAGE! Disconnect ALL power before servicing WARNING or installing this unit. Multiple power sources may be present. Failure to do so To avoid the risk of fire or explosion, never use may cause property damage, personal injury oxygen, high pressure air or flammable gases for leak or death.

  • Page 56: Charging

    SERVICING S-103 CHARGING WARNING Do not front seat the service valve(s) with the WARNING compressor open, with the suction line of the comprssor closed or severely restricted. REFRIGERANT UNDER PRESSURE! * Do not overcharge system with refrigerant. 1. Connect the vacuum pump, vacuum tight manifold set * Do not operate unit in a vacuum or at negative with high vacuum hoses, thermocouple vacuum gauge pressure.

  • Page 57: Checking Compressor Efficiency

    SERVICING After system has stabilized per startup instructions, com- If these symptoms are observed: pare the operating pressures and outdoor unit amp draw to 1. Check for an overcharged unit by referring to the cooling the numbers listed in the spec sheet manual. If pressures performance charts in the spec sheet manual.

  • Page 58: Checking Subcooling

    SERVICING 4. If a temperature or pressure change is noticed, the S-109 CHECKING SUBCOOLING expansion valve is operating. If no change is noticed, the Refrigerant liquid is considered subcooled when its tempera- valve is restricted, the power element is faulty, or the ture is lower than the saturation temperature corresponding equalizer tube is plugged.
  • Page 59 SERVICING Pressure vs. Temperature Chart R-410A PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F -37.7 114.0 37.8 216.0 74.3 318.0 100.2 420.0 120.7 522.0 137.6 -34.7 38.7 74.9 100.7 121.0 137.9 116.0 218.0 320.0 422.0 524.0 -32.0 118.0 39.5...
  • Page 60 SERVICING SUBCOOLING REQUIRED LIQUID LINE TEMPERATURE LIQUID PRESSURE LIQUID PRESSURE REQUIRED SUBCOOLING TEMPERATURE (°F) AT ACCESS FITTING (PSIG) AT SERVICE VALVE (PSIG)

  • Page 61: Non-Condensables

    Severe burns may result. tions. Also with a fixed orifice restrictor device (flowrator) metering NOTE: Daikin does NOT approve the flushing method using device, extreme cases of insufficient indoor air can cause R-11 refrigerant. icing of the indoor coil and liquid refrigerant return to the compressor, but the head pressure would be lower.

  • Page 62: Checking External Static Pressure

    SERVICING The more air (CFM) being delivered through a given unit the S-200 CHECKING EXTERNAL STATIC PRES- less the rise will be; so the less air (CFM) being delivered, the SURE greater the rise. The temperature rise should be adjusted in The minimum and maximum allowable duct static pressure accordance to a given unit specifications and its external is found in the Specifications Sheet Manual.

  • Page 63: Indoor Fan Rotation Check

    SERVICING span length (See DRIVE BELT TENSION ADJUSTMENT S-206 INDOOR FAN ROTATION CHECK Figure). Belt tension force can be measured using a belt tension gauge, available through most belt manufacturers. Evaporator Fan Rotation Check (Three Phase Models The correct deflection force is 5 Ibs. for a new belt and 3.5 Ibs. Only) for a belt that has been run in.

  • Page 64: Testing Primary Limit

    SERVICING It is connected in series with the rollout switch wiring to the S-300 TESTING PRIMARY LIMIT CONTROL gas valve. If its temperature should be exceeded, it will open, DCG units use a snap-disk type primary limit device. interrupting the voltage to the gas valve causing it to open. Sometimes referred to as "stat on a stick".

  • Page 65: Checking Flame Rollout Switch

    SERVICING Servicing procedure with furnace not firing. S-302 CHECKING FLAME ROLLOUT SWITCH 1. Confirm that the outer door was in place and all screws DCG units are equipped with a temperature-activated manual tightened. (No leaks under the door.) reset control. This control is mounted to the manifold assem- 2.

  • Page 66: Testing Gas Valve

    SERVICING PRESSURE ADJUSTMENTS 3. Touch one probe of the ohmmeter to the motor frame (ground) and the other probe in turn to each lead. S-305 CHECKING MAIN BURNERS If the windings do not test continuous or a reading is obtained The main burners are used to provide complete combus- to ground, replace the motor.

  • Page 67: Checking Gas Pressure

    SERVICING DENT OR BURR OUTLET (MANIFOLD) PRESSURE MANOMETER STREAM B (FIELD SUPPLIED) NOTE! MANIFOLD PRESSURE IS TO BE BETWEEN 3.2 & 3.7 NATURAL AND 10.0 & 11.0 INCHES L.P. The length of Dimension "A" determines the angle of Gas HIGH FIRE OR SINGLE STAGE AND Stream Defraction, "B".

  • Page 68: Checking For Delayed Ignition

    SERVICING Pressure Switch Operation (DSI Direct Spark System) The pressure switch is ignored unless there is a call for heat. MANIFOLD GAS PRESSURE When the control receives a call for heat, the control checks 2 Stage Heat Models to see that the pressure switch is open. If the control sees that the pressure switch is closed before the induced draft Range Nominal...

  • Page 69: High Altitude Application

    SERVICING S-313 TESTING IGNITION CONTROL MOD- 5. Remove and check the two electrical wires and using the VOM check from Common to NO (Normally Open), it should read closed (with I.D. motor running). If not as NOTE: Failure to earth ground the unit, reversing the neutral above, replace pressure control.
  • Page 70 SERVICING 5. The control monitors the safety circuit inputs, flame, and BNORMAL PERATION EATING ODES thermostat during operation. External Lockout (1 FLASH CODE) 6. When the thermostat is satisfied, the gas valve is de- An external lockout occurs if the integrated ignition control energized and the induced draft blower remains on for a determines that a measurable combustion cannot be estab- 29 second post purge.

  • Page 71: Checking Flame Sensor

    SERVICING IMPORTANT: If you have to frequently reset your gas/ NOTE: Some electronic thermostats also have a built-in electric package unit, it means that a problem exists that compressor short cycle timer that may be longer than the should be corrected. Contact a qualified servicer for three minute delay given above.
  • Page 72 SERVICING WARNING Line Voltage now present. 5. With Power ON, Place the unit into a heating cycle. 6. As soon as flame is established a microamp reading should be evident once proof of flame (microamp reading) is established, the hot surface ignitor will be de-ener- gized.
  • Page 73 ACCESSORIES DCC/H/G***XXX**XXX DAIKIN COMMERCIAL PACKAGE UNIT ACCESSORIES Accessory Number Description Model Size ***HSKT090* High Static Kit 7.5-8.5 Ton ***HSKT120* High Static Kit 10 Ton ***HSKT150* High Static Kit 12.5 Ton ***HSKTW* High Static Kit - 2 Speed 7.5-12.5 Ton **EHK* Heater Kit 7.5-12.5 Ton...
  • Page 74 ACCESSORIES DAIKIN COMMERCIAL PACKAGE UNIT DDC CONTROLS WATTMASTER / DAIKIN PART NUMBER DESCRIPTION OE377-26B-00001 / PCBCG100 DDC Controller OE255 / 0130L00110 Sensor OE361-13 / 0130L00126 CommLink 5 Communications Interface EBC-3-F / 0130L00114 EBC-10-F / 0130L00115 EBC E-BUS Cable Assembly E-BUS Power EBC-50-F / 0130L00116 &...
  • Page 75 ACCESSORIES ROOF CURBS 14CURB90150 14CURB90150 Cha ssis Mode ls 7.5 -12.5 Tons 92-1/4" 53-1/4" 14" Measurement in inches. DOWNFLOW SQUARE TO ROUND ADAPTERS DDNSQRD9020 DDNSQRD9020Shown Measurement in inches. DOWNFLOW SQUARE TO ROUND ADAPTER MODEL SIZE DDNSQRD9020 20" ROUND 13.50 31.125 19.50 13.50...
  • Page 76 ACCESSORIES MOTORIZED/MANUAL FRESH AIR DAMPERS 25% FRESH AIR DAMPER CHASSIS MODELS MANUAL MOTORIZED 7.5 - 12.5 Tons D25FD90150 D25MFD90150 ECONOMIZERS HORIZONTAL ECONOMIZER MODEL TYPE MODEL DHZECNJ90150 HORIZONTAL 7.5 - 12.5 TON DCC/G/H DOWNFLOW ECONOMIZER MODEL TYPE MODEL DOWNFLOW DDNECNJ90150B 7.5 - 12.5 TON DCC/G/H (MCDANIEL METALS) DOWNFLOW DDNECNJ90150NR...
  • Page 77 ACCESSORIES HAIL GUARD KIT HAIL GUARD KIT MODELS KIT # 7.5 - 10 Tons HAILGD02D 12.5 Tons HAILGD05D FLUE EXTENSION KIT FLUE EXTENSION KIT MODELS KIT # 7.5 - 12.5 Tons 220-GX-02 3.25 2.25 6.50 2.38 40.00...
  • Page 78 ECONOMIZER ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 79 ACCESSORIES WIRING DIAGRAMS POWERED CONV. OUTLET HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS BEFORE 1607 208V NOTE GFI-CO...
  • Page 80 ACCESSORIES WIRING DIAGRAMS POWERED CONV. OUTLET HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS 1607 AND NEWER 208v NOTE GFI-CO...
  • Page 81 DPE90150* ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. POWER EXHAUST 7.5 & 12.5 TON Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 82 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. PACKAGE SYSTEM WIRING DIAGRAM - 1 STAGE ELECTRIC HEAT TYPICAL HP ROOM THERMOSTAT SEE NOTE 1...
  • Page 83 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. PACKAGE SYSTEM WIRING DIAGRAM - HEAT PUMPS ONLY! TWO-STAGE ELECTRIC HEAT ABOVE 10 kW TYPICAL H/P ROOM THERMOSTAT...
  • Page 84 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS BEFORE 1409 CONNECT PARALLEL TO MODELS: DC*090 - C*150 REVERSING VALVE 24 VAC ( IF USED ) SEE NOTE 2...
  • Page 85 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS 1409 AND NEWER MODELS: DC*090 - DC*150 MODELS: DC*090 - DC*150 MODELS: DC*090 - DC*150 O.D.
  • Page 86 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FACTORY INSTALLED DISCONNECT SUPPLY VOLTAGE SUPPLY VOLTAGE DISCONNECT FACTORY WIRING LINE VOLTAGE FIELD WIRING...
  • Page 87 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 24V AC/DC 24V AC/DC AUX OUT + AUX OUT - INT/AUX - INT + ALARM...
  • Page 88 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. PHASE MONITOR WIRING - NO SMOKE DETECTOR COMPONENT LEGEND BLOWER CONTACTOR TERMINAL BLOCK WIRING...
  • Page 89 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. PHASE MONITOR W IRING WHEN UNIT EQUIPPED WITH SMOKE DETECTOR COMPONENT LEGEND BLOWER CONTACTOR TERMINAL BLOCK...
  • Page 90 DDC CONTROL ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. C O MPO NE NT LE G E N D POW ER BLOC K TERMINAL BLOCK TB1/TB 2...
  • Page 91 DDC CONTROL ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. MODELS: DC*090 - DC*150 MODELS: DC*090 - DC*150 O.D.
  • Page 92 DDC CONTROL ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 24V AC/DC 24V AC/DC AUX OUT + AUX OUT - INT/AUX - INT +...
  • Page 93 DCC/H***XXX**XXX HEATER KITS HEATER KITS Part Number Description EHK3-16 15 KW Electric Heat Kit, 240V Three Phase EHK4-16 15 KW Electric Heat Kit, 480V Three Phase EHK7-16 15 KW Electric Heat Kit, 575V Three Phase EHK3-30 30 KW Electric Heat Kit, 240V Three Phase EHK3-45 43 KW Electric Heat Kit, 240V Three Phase EHK4-30...
  • Page 94 EHK*-16 HEATER KIT WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS BEFORE 1409 EHK3-10 HEAT KITS - 10 KW, EHK3-15 HEAT KITS - 15 KW EHK3-16 HEAT KITS - 16 KW EHK4-10 HEAT KITS - 10 KW, EHK4-15 HEAT KITS - 15 KW...
  • Page 95 EHK[3, 4, 7]-30 HEATER KIT WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS BEFORE 1409 EHK3 - 30 HEAT KIT - 30 KW EHK4 - 30 HEAT KIT - 30 KW EHK7 - 30 HEAT KIT - 30 KW...
  • Page 96 EHK[3, 4, 7]-45 HEATER KIT WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS BEFORE 1409 EHK3 - 45 HEAT KIT - 43 KW EHK4 - 45 HEAT KIT - 43 KW EHK7 - 45 HEAT KIT - 43 KW...
  • Page 97 EHK*-16 HEATER KIT WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS 1409 AND NEWER HTR 1 HTR 2 HTR 3...
  • Page 98 EHK*-30 HEATER KIT WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS 1409 AND NEWER HTR 4 HTR 1 HTR 5...
  • Page 99 EHK*-45 HEATER KIT WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. FOR UNITS WITH SERIALS 1409 AND NEWER HTR 7 HTR 4 HTR 1...
  • Page 100 DCC COMMERCIAL 7.5-12.5 Ton Packaged Air Conditioner Unit WIRING DIAGRAMS For units with DDC control see manual RSD6412018* for wiring diagrams...
  • Page 101 UNIT WIRING DIAGRAMS DCC090-150XXX*B***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 102 UNIT WIRING DIAGRAMS DCC090-150XXX*B***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 103 DCC(090,102)XXX*V***A* UNIT WIRING DIAGRAMS Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 104 UNIT WIRING DIAGRAMS DCC(090,102)XXX*V***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 105 UNIT WIRING DIAGRAMS DCC(120,150)XXX*V***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 106 UNIT WIRING DIAGRAMS DCC(120,150)XXX*V***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 107 DCG COMMERCIAL 7.5-12.5 Ton Packaged Gas/Electric Unit WIRING DIAGRAMS For units with DDC control see manual RSD6412018* for wiring diagrams...
  • Page 108 UNIT WIRING DIAGRAMS DCG090-150XXX3B***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 109 DCG090-150XXX3B***A* UNIT WIRING DIAGRAMS Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 110 UNIT WIRING DIAGRAMS DCG090-150XXX[4,7]B***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 111 DCG090-150XXX[4,7]B***A* UNIT WIRING DIAGRAMS Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 112 UNIT WIRING DIAGRAMS DCG090-150XXX[4,5,7]B***A* Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 113 DCG(090,102)XXX3V***A* UNIT WIRING DIAGRAMS FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 114 DCG(090,102)XXX3V***A* UNIT WIRING DIAGRAMS FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 115 UNIT WIRING DIAGRAMS DCG(090,102)XXX[4,7]V***A* FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 116 UNIT WIRING DIAGRAMS DCG(090,102)XXX[4,7]V***A* FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 117 UNIT WIRING DIAGRAMS DCG(120,150)XXX3V***A* FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 118 UNIT WIRING DIAGRAMS DCG(120,150)XXX3V***A* FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 119 UNIT WIRING DIAGRAMS DCG(120,150)XXX[4,7]V***A* FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 120 UNIT WIRING DIAGRAMS DCG(120,150)XXX[4,7]V***A* FOR UNITS WITH SERIALS BEFORE 1409 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 121 UNIT WIRING DIAGRAMS DCG(090,102)XXX3V***A* FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 122 UNIT WIRING DIAGRAMS DCG(090,102)XXX3V***A* FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 123 UNIT WIRING DIAGRAMS DCG(090,102)XXX[4,7]V***A* FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 124 UNIT WIRING DIAGRAMS DCG(090,102)XXX[4,7]V***A* FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 125 DCG(120,150)XXX3V***A* UNIT WIRING DIAGRAMS FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 126 UNIT WIRING DIAGRAMS DCG(120,150)XXX3V***A* FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 127 DCG(120,150)XXX[4,7]V***A* UNIT WIRING DIAGRAMS FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 128 UNIT WIRING DIAGRAMS DCG(120,150)XXX[4,7]V***A* FOR UNITS WITH SERIALS 1409 & NEWER Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 129 DCH COMMERCIAL 7.5-12.5 Ton Packaged Heat Pump Unit WIRING DIAGRAMS For units with DDC control see manual RSD6412018* for wiring diagrams...
  • Page 130 DCH090-150XXX*B***A* UNIT WIRING DIAGRAMS COMP 1 COMP 2 CM 2 T2 T3 T2 T3 PLF 1 RVC2 RVC1 DFT 1 DFT 2 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 131 DCH090-150XXX*B***A* UNIT WIRING DIAGRAMS SUPPLY VOLTA E SUPPLY VO 208 240 440 57 208-240/ /575 /3/60 /3/60 COMPONENT LEGEND COMPONENT LEGEND FACTORY WIRING FACTORY WIRING BL W ER CONTACT R O W ER CO LINE VOLTAGE LINE VOLTAGE BL W ER RELA O W ER COMP1 COMP1...
  • Page 132 UNIT WIRING DIAGRAMS DCH(090,102)XXX*V***A* CM 1 CM 2 RVC2 RVC1 DFT1 DFT2 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 133 DCH(090,102)XXX*V***A* UNIT WIRING DIAGRAMS SUPPL Y VOLTAGE 208-240/440/575/3/60 COMPONENT LEGEND COMPONENT LEGEND COMP1 COMP1 FACTORY WIRING FACTORY WIRING BLOW ER CONT CTOR BLOW ER CO A CTOR LINE VOL NE VOLTA E BLOW ER RELAY BLOW ER RELAY LOW VOL OW VOLTA E CIRCUIT BREA CIRCUIT BREAKER...
  • Page 134 DCH(120,150)XXX*V***A* UNIT WIRING DIAGRAMS CM 1 CM 2 PLF 1 RVC2 RVC1 Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 135 UNIT WIRING DIAGRAMS DCH(120,150)XXX*V***A* LT G 0/ 4 COMPONENT LEGEND COMPONENT LEGEND COMP1 COMP1 FACTORY WIRING FACTORY WIRING O WER ONTACTO R BL WER CONTACT R LINE VOLTAGE VOLTAGE WER RELA Y BLO WER RELA LOW VOLTAGE VOLTAGE CI CUIT REAKE RCUIT REAKER PT IO AL CO PRESS R CONTACT...

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