To Next PageTo Next Page
Need help?Do you have a question about the Daikin DFG Series and is the answer not in the manual?
Crucial safety warnings regarding trained personnel, hazards, and proper procedures for unit installation and service.
Emphasizes disconnecting all power before servicing due to multiple power sources, preventing injury or death.
Details risks of fire or explosion from gas leaks and improper handling, stressing leak detection methods.
Warns against using units submerged in water, requiring immediate qualified inspection and part replacement.
Prohibits use as a construction heater due to premature failure from low return air and corrosive atmospheres.
Alerts to high voltage risks during servicing, emphasizing power disconnection and multiple sources.
Special warning for installations in garages or utility rooms, requiring adequate outside ventilation to prevent CO poisoning.
Outlines critical steps for checking the venting system to prevent carbon monoxide poisoning or death.
Unit approved for outdoor installation only, requires adherence to codes and instructions for safe and efficient operation.
Highlights EPA regulations on refrigerant introduction and disposal, recommending certified technicians for work.
Product designed for installation per National Codes; installer is responsible for compliance with prevailing local codes.
Instructions for inspecting units for damage during transit and reporting procedures for the receiver.
Details pre-installation steps like reading instructions, assembling tools, and ensuring understanding of procedures.
Specifies minimum clearances from enclosures and considerations for unit placement to ensure fire protection and operation.
Provides guidelines for ground level bases and roof top installations, including structural strength and surface requirements.
Outlines requirements for roof curb installation, including attachment, assembly, and insulation provided by the contractor.
Details minimum clearances around the unit for service and airflow, including overhang and exhaust considerations.
Specifies checks for roof curb installation, including gasket application and utility protrusion verification.
Instructions for installing duct connections on the unit before placement on the rooftop, including horizontal discharge.
Warns against improper rigging practices to prevent unit damage, injury, or death during lifting and moving operations.
Provides step-by-step instructions for removing shipping braces and wooden struts before unit installation.
Provides unit weights and center of gravity locations to aid in determining rigging requirements.
Cautions against resting crane hooks or spreader bars on the unit during rigging removal to prevent damage.
Alerts to high voltage risks during servicing, emphasizing power disconnection and multiple power sources.
Warns against tampering with factory wiring due to high voltage, emphasizing qualified assistance for required work.
Advises protecting wiring from sharp edges, following NEC and local codes, and using weatherproof conduit for exterior wiring.
Details wire sizing based on ampacity, circuit breaker requirements, and managing voltage drop for optimal performance.
Describes options for main power and low voltage wiring entry into the unit for rooftop installations.
Specifies acceptable supply voltage variation and phase unbalance limits to prevent product abuse and severe damage.
Alerts that operating on improper line voltage or with excessive phase unbalance voids warranty and causes severe damage.
Details requirements for 24V thermostat installation and low voltage wiring routing and connection to the terminal block.
Highlights the need for conversion kits for propane gas and safety precautions like installing gas detecting devices.
Specifies minimum and maximum inlet gas pressures for natural and propane gas, crucial for proper operation.
Provides a table for sizing natural gas pipe based on length and capacity (CFH) to ensure adequate supply.
Outlines rules for using black iron pipe, joint compound, unions, drip legs, and shut-off valves for gas supply piping.
Emphasizes leak testing gas connections before operation using soap solution, never open flame, and avoiding over-pressurization.
Details propane gas pressure requirements, vaporization factors, regulation, and pipe sizing for satisfactory operation.
Information on tank sizing, regulator settings, and pipe sizing for propane gas supply.
Guides on routing gas piping to avoid access panel interference and supporting piping to prevent strain.
Details adjusting natural and LP gas supply pressure at the unit gas valve, including regulator requirements.
Discusses ductwork installation, access panels, and using flexible connections for sound reduction.
Notes self-contained venting and inductor motor voltage adjustment requirements for proper operation.
Explains the condensate drain connection, trap installation, and hand-tightening the drain fitting.
Illustrates and describes the installation of condensate drain traps for both horizontal and vertical configurations.
Advises periodic cleaning of drain pans to prevent algae and fungus buildup that can plug the drain.
Lists essential pre-startup checks that must be completed before operating the unit, emphasizing safety.
Outlines requirements for temporary heating/cooling use, including performing checks and inspecting for dust after use.
Details installer duties, roof curb inspection, flashing, and unit levelness requirements.
Covers minimum clearances, removing obstructions, checking fan rotation, and wiring integrity.
Verifies duct connections, filter installation, transformer, and induced draft motor setup.
Guides on adjusting airflow via EEM motor taps and performing control voltage checks for proper operation.
Explains how to change blower speeds for different operating modes (cooling/heating stages) by moving wires on the terminal block.
Advises checking evaporator fan amperage draw against motor nameplate limits as a preliminary check.
Details the procedure for setting and verifying evaporator fan RPM using a tachometer or strobe light.
Covers adjusting gas supply and manifold pressures for natural and LP gas, with warnings about overheating and flue box cover.
Provides specifications for heat exchangers and burner orifices, including derating for high altitudes.
Describes how to check and adjust gas inlet pressure according to fuel type, using a manometer.
Lists pre-operation steps for the gas system, including closing valves, checking for leaks, and smells.
Explains how to adjust gas manifold pressure for natural and propane gas by turning the gas valve regulator screw.
Details the responsibility and procedure for adjusting natural gas input using a gas meter and calculating BTU per hour.
Provides a method and example for calculating gas input in BTU/Hour using meter readings and gas heating value.
Guides on inspecting burner flames for stability and color, and verifying NOx screen alignment.
Explains how to check temperature rise by measuring supply and return air temperatures, and how blower speed affects it.
Details the step-by-step process of the heating cycle, from thermostat activation to burner ignition and blower operation.
Provides a sequence of steps for safely shutting down the unit, including turning off power and gas.
Describes the location and function of the automatic reset high limit control that protects against excessive furnace temperature.
Explains the auxiliary high limit control located in the blower compartment that protects filters from excessive temperatures.
Details the manual reset flame rollout control that senses high temperatures from potential flame rollout.
Advises checking compressor hold-down bolts and visually inspecting all piping for damage, leaks, and refrigerant charge.
Outlines the initial steps for starting the unit, including setting the thermostat, inspecting registers, and turning on power.
Describes how to verify the cooling cycle sequence by simulating a call for cooling and observing component operation.
Instructs to check compressor RLA against Appendix B values, noting variations based on load conditions.
Explains how to measure subcooling using liquid line pressure and temperature, providing the relevant formula.
Details how to measure superheat using suction pressure and temperature, providing the relevant formula.
Provides guidelines for adjusting superheat on TXV systems, recommending small increments and stabilization time.
Outlines methods for charging units with fixed orifice devices (superheat) and TXV systems (subcooling).
Warns of electrical shock, fire, or explosion hazards during maintenance, stressing power disconnection and wire labeling.
Advises on filter replacement frequency (every 3 months) and inspection (every 2 months) to maintain performance and prevent damage.
Recommends using automotive wax for cabinet finish and cleaning the outside coil annually to maintain appearance and efficiency.
States that fan and compressor motors are permanently lubricated and provides instructions for cleaning the flame sensor.
Advises inspecting and cleaning unit flue passages at the start of each heating season for efficient operation.
Confirms that fan shaft bearings, motors, and compressors are permanently lubricated and require no additional oiling.
Details annual inspection and cleaning of flue areas, vent systems, and burners by qualified personnel for safe operation.
Explains how to identify ignition control error codes by observing diagnostic LED flashes for troubleshooting.
Describes steps for diagnosing internal control failures, including checking voltage, fuses, and wiring, and replacing the control if necessary.
Addresses faults related to ignition failure or flame dropouts, including external lockout and reset procedures.
Details diagnostic codes for pressure switches stuck open or closed, and potential causes like faulty switches or blocked flues.
Covers faults related to open limit switches, thermal protection devices, and flame detection with a closed gas valve.
Explains abnormal operations during cooling, such as compressor short cycle delay and potential thermostat timer interactions.
Detailed performance metrics for 7.5 Ton GE models across various tap speeds and static pressures.
Detailed performance metrics for 8.5 Ton GE models across various tap speeds and static pressures.
Detailed performance metrics for 10 Ton GE models across various tap speeds and static pressures.
Detailed performance metrics for 12.5 Ton GE models across various tap speeds and static pressures.
Presents a summary of electrical data for various unit models, including compressor, fan motor, and power supply specifications.
Continues the summary of electrical data for unit models, detailing RLA, LRA, HP, FLA, and power supply requirements.
Provides further electrical data for unit models, including optional electric heat and convenience outlet specifications.
Contains the final electrical data summary for unit models, detailing MCA, MOP, and power supply information.
Displays the dimensions and notes for horizontal discharge duct connections, including panel removal and clip attachment.
Shows the dimensions and notes for vertical discharge (top view of unit), indicating supply and return opening locations.
Lists recommended minimum and maximum airflow ranges for heating and cooling for different unit models (DFG090 to DFG150).
Includes notes on wiring changes, safety warnings, component legend, wire codes, and troubleshooting status light codes.
A checklist of items to verify before the initial startup, covering packaging removal, shipping brackets, voltage, connections, and component security.
Provides fields to record electrical values like supply voltage, compressor amps, blower amps, and fan amps during startup.
Offers spaces to record return air, supply air, and total external static pressures, along with blower wheel RPM.
Includes fields for recording outdoor, return, cooling supply, and heating supply air temperatures, as well as gas pressures and refrigerant superheat/subcooling.
Encourages users to provide feedback via a link or QR code to improve products.
Explains the benefits of product registration for warranty protection and provides a link or QR code for registration.
Crucial safety warnings regarding trained personnel, hazards, and proper procedures for unit installation and service.
Emphasizes disconnecting all power before servicing due to multiple power sources, preventing injury or death.
Details risks of fire or explosion from gas leaks and improper handling, stressing leak detection methods.
Warns against using units submerged in water, requiring immediate qualified inspection and part replacement.
Prohibits use as a construction heater due to premature failure from low return air and corrosive atmospheres.
Alerts to high voltage risks during servicing, emphasizing power disconnection and multiple sources.
Special warning for installations in garages or utility rooms, requiring adequate outside ventilation to prevent CO poisoning.
Outlines critical steps for checking the venting system to prevent carbon monoxide poisoning or death.
Unit approved for outdoor installation only, requires adherence to codes and instructions for safe and efficient operation.
Highlights EPA regulations on refrigerant introduction and disposal, recommending certified technicians for work.
Product designed for installation per National Codes; installer is responsible for compliance with prevailing local codes.
Instructions for inspecting units for damage during transit and reporting procedures for the receiver.
Details pre-installation steps like reading instructions, assembling tools, and ensuring understanding of procedures.
Specifies minimum clearances from enclosures and considerations for unit placement to ensure fire protection and operation.
Provides guidelines for ground level bases and roof top installations, including structural strength and surface requirements.
Outlines requirements for roof curb installation, including attachment, assembly, and insulation provided by the contractor.
Details minimum clearances around the unit for service and airflow, including overhang and exhaust considerations.
Specifies checks for roof curb installation, including gasket application and utility protrusion verification.
Instructions for installing duct connections on the unit before placement on the rooftop, including horizontal discharge.
Warns against improper rigging practices to prevent unit damage, injury, or death during lifting and moving operations.
Provides step-by-step instructions for removing shipping braces and wooden struts before unit installation.
Provides unit weights and center of gravity locations to aid in determining rigging requirements.
Cautions against resting crane hooks or spreader bars on the unit during rigging removal to prevent damage.
Alerts to high voltage risks during servicing, emphasizing power disconnection and multiple power sources.
Warns against tampering with factory wiring due to high voltage, emphasizing qualified assistance for required work.
Advises protecting wiring from sharp edges, following NEC and local codes, and using weatherproof conduit for exterior wiring.
Details wire sizing based on ampacity, circuit breaker requirements, and managing voltage drop for optimal performance.
Describes options for main power and low voltage wiring entry into the unit for rooftop installations.
Specifies acceptable supply voltage variation and phase unbalance limits to prevent product abuse and severe damage.
Alerts that operating on improper line voltage or with excessive phase unbalance voids warranty and causes severe damage.
Details requirements for 24V thermostat installation and low voltage wiring routing and connection to the terminal block.
Highlights the need for conversion kits for propane gas and safety precautions like installing gas detecting devices.
Specifies minimum and maximum inlet gas pressures for natural and propane gas, crucial for proper operation.
Provides a table for sizing natural gas pipe based on length and capacity (CFH) to ensure adequate supply.
Outlines rules for using black iron pipe, joint compound, unions, drip legs, and shut-off valves for gas supply piping.
Emphasizes leak testing gas connections before operation using soap solution, never open flame, and avoiding over-pressurization.
Details propane gas pressure requirements, vaporization factors, regulation, and pipe sizing for satisfactory operation.
Information on tank sizing, regulator settings, and pipe sizing for propane gas supply.
Guides on routing gas piping to avoid access panel interference and supporting piping to prevent strain.
Details adjusting natural and LP gas supply pressure at the unit gas valve, including regulator requirements.
Discusses ductwork installation, access panels, and using flexible connections for sound reduction.
Notes self-contained venting and inductor motor voltage adjustment requirements for proper operation.
Explains the condensate drain connection, trap installation, and hand-tightening the drain fitting.
Illustrates and describes the installation of condensate drain traps for both horizontal and vertical configurations.
Advises periodic cleaning of drain pans to prevent algae and fungus buildup that can plug the drain.
Lists essential pre-startup checks that must be completed before operating the unit, emphasizing safety.
Outlines requirements for temporary heating/cooling use, including performing checks and inspecting for dust after use.
Details installer duties, roof curb inspection, flashing, and unit levelness requirements.
Covers minimum clearances, removing obstructions, checking fan rotation, and wiring integrity.
Verifies duct connections, filter installation, transformer, and induced draft motor setup.
Guides on adjusting airflow via EEM motor taps and performing control voltage checks for proper operation.
Explains how to change blower speeds for different operating modes (cooling/heating stages) by moving wires on the terminal block.
Advises checking evaporator fan amperage draw against motor nameplate limits as a preliminary check.
Details the procedure for setting and verifying evaporator fan RPM using a tachometer or strobe light.
Covers adjusting gas supply and manifold pressures for natural and LP gas, with warnings about overheating and flue box cover.
Provides specifications for heat exchangers and burner orifices, including derating for high altitudes.
Describes how to check and adjust gas inlet pressure according to fuel type, using a manometer.
Lists pre-operation steps for the gas system, including closing valves, checking for leaks, and smells.
Explains how to adjust gas manifold pressure for natural and propane gas by turning the gas valve regulator screw.
Details the responsibility and procedure for adjusting natural gas input using a gas meter and calculating BTU per hour.
Provides a method and example for calculating gas input in BTU/Hour using meter readings and gas heating value.
Guides on inspecting burner flames for stability and color, and verifying NOx screen alignment.
Explains how to check temperature rise by measuring supply and return air temperatures, and how blower speed affects it.
Details the step-by-step process of the heating cycle, from thermostat activation to burner ignition and blower operation.
Provides a sequence of steps for safely shutting down the unit, including turning off power and gas.
Describes the location and function of the automatic reset high limit control that protects against excessive furnace temperature.
Explains the auxiliary high limit control located in the blower compartment that protects filters from excessive temperatures.
Details the manual reset flame rollout control that senses high temperatures from potential flame rollout.
Advises checking compressor hold-down bolts and visually inspecting all piping for damage, leaks, and refrigerant charge.
Outlines the initial steps for starting the unit, including setting the thermostat, inspecting registers, and turning on power.
Describes how to verify the cooling cycle sequence by simulating a call for cooling and observing component operation.
Instructs to check compressor RLA against Appendix B values, noting variations based on load conditions.
Explains how to measure subcooling using liquid line pressure and temperature, providing the relevant formula.
Details how to measure superheat using suction pressure and temperature, providing the relevant formula.
Provides guidelines for adjusting superheat on TXV systems, recommending small increments and stabilization time.
Outlines methods for charging units with fixed orifice devices (superheat) and TXV systems (subcooling).
Warns of electrical shock, fire, or explosion hazards during maintenance, stressing power disconnection and wire labeling.
Advises on filter replacement frequency (every 3 months) and inspection (every 2 months) to maintain performance and prevent damage.
Recommends using automotive wax for cabinet finish and cleaning the outside coil annually to maintain appearance and efficiency.
States that fan and compressor motors are permanently lubricated and provides instructions for cleaning the flame sensor.
Advises inspecting and cleaning unit flue passages at the start of each heating season for efficient operation.
Confirms that fan shaft bearings, motors, and compressors are permanently lubricated and require no additional oiling.
Details annual inspection and cleaning of flue areas, vent systems, and burners by qualified personnel for safe operation.
Explains how to identify ignition control error codes by observing diagnostic LED flashes for troubleshooting.
Describes steps for diagnosing internal control failures, including checking voltage, fuses, and wiring, and replacing the control if necessary.
Addresses faults related to ignition failure or flame dropouts, including external lockout and reset procedures.
Details diagnostic codes for pressure switches stuck open or closed, and potential causes like faulty switches or blocked flues.
Covers faults related to open limit switches, thermal protection devices, and flame detection with a closed gas valve.
Explains abnormal operations during cooling, such as compressor short cycle delay and potential thermostat timer interactions.
Detailed performance metrics for 7.5 Ton GE models across various tap speeds and static pressures.
Detailed performance metrics for 8.5 Ton GE models across various tap speeds and static pressures.
Detailed performance metrics for 10 Ton GE models across various tap speeds and static pressures.
Detailed performance metrics for 12.5 Ton GE models across various tap speeds and static pressures.
Presents a summary of electrical data for various unit models, including compressor, fan motor, and power supply specifications.
Continues the summary of electrical data for unit models, detailing RLA, LRA, HP, FLA, and power supply requirements.
Provides further electrical data for unit models, including optional electric heat and convenience outlet specifications.
Contains the final electrical data summary for unit models, detailing MCA, MOP, and power supply information.
Displays the dimensions and notes for horizontal discharge duct connections, including panel removal and clip attachment.
Shows the dimensions and notes for vertical discharge (top view of unit), indicating supply and return opening locations.
Lists recommended minimum and maximum airflow ranges for heating and cooling for different unit models (DFG090 to DFG150).
Includes notes on wiring changes, safety warnings, component legend, wire codes, and troubleshooting status light codes.
A checklist of items to verify before the initial startup, covering packaging removal, shipping brackets, voltage, connections, and component security.
Provides fields to record electrical values like supply voltage, compressor amps, blower amps, and fan amps during startup.
Offers spaces to record return air, supply air, and total external static pressures, along with blower wheel RPM.
Includes fields for recording outdoor, return, cooling supply, and heating supply air temperatures, as well as gas pressures and refrigerant superheat/subcooling.
Encourages users to provide feedback via a link or QR code to improve products.
Explains the benefits of product registration for warranty protection and provides a link or QR code for registration.
General| Brand | Daikin |
|---|---|
| Model | DFG Series |
| Category | Air Conditioner |
| Language | English |
