Commercial System Analyzer

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Contact & System Configuration – Step 1 of 6

Name *

First

Last

Email *

Dealer/Company Name *

Phone *

Job Site Name *

Please select your region. *

Collect live operating data from the job site. For dual-circuit equipment, complete a separate refrigerant section for each circuit.

Are you currently on the job site? *

If not on site, explain who collected the readings *

Live readings are strongly preferred.

Commercial equipment configuration *

Split system
Packaged unit

Number of independent refrigerant circuits *

Single circuit
Dual circuit

Operating mode being analyzed *

Cooling
Heat pump heating
Gas heat
Electric heat
Fan only

Equipment control type *

Conventional thermostat / controller
Communicating controller
Building automation system (BAS)
Standalone unit controller

Outdoor ambient temperature *

Indoor return-air dry-bulb temperature *

Indoor return-air wet-bulb temperature

Thermostat / controller setpoint *

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Packaged Unit

Enter the complete rooftop/package unit information.

Packaged Unit Model Number *

Packaged Unit Serial Number *

Split-System Outdoor Unit

Outdoor Unit Model Number *

Outdoor Unit Serial Number *

Split-System Indoor Unit

Air Handler / Furnace Model Number *

Air Handler / Furnace Serial Number *

Evaporator Coil Model Number

Evaporator Coil Serial Number

Unit electrical power *

Single phase
Three phase

Indoor blower assembly *

Direct-drive PSC
Direct-drive ECM / variable speed
Belt drive
EcoBlue / electronically controlled commercial blower
Other

Are fault codes or active alarms present? *

Fault code / alarm details *

Equipment and Control Photos *

Drag & Drop Files, Choose Files to Upload You can upload up to 6 files.

Upload clear data-tag, controller/board, wiring/setup, and fault-history photos.

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Current compressor / capacity stage *

Stage 1 / Low capacity
Stage 2 / High capacity
Single-stage / Full capacity
Other

Current blower speed, tap, percentage, or BAS command *

Examples: Low Cool, High Cool, Tap 3, 72%, 7.5 VDC, or BAS 65%.

Airflow verification method *

Controller-reported airflow
External static pressure and fan table
Blower RPM and fan table
Electric heat temperature rise
Gas heat temperature rise
Measured airflow hood / traverse

Controller-Reported System CFM *

Controller-Reported Blower RPM

Controller-Reported Static Pressure

Return Static Pressure *

Supply Static Pressure *

Total External Static Pressure *

CFM From Manufacturer Fan Table *

Measured Blower Wheel RPM *

Measure blower-wheel RPM, not motor nameplate RPM.

Motor Nameplate RPM

Motor HP

Motor Amp Draw

Motor Sheave Diameter

Blower Sheave Diameter

CFM From RPM / Fan Table *

Electric Heater Voltage *

Heat-Only Amp Draw *

Subtract indoor fan motor amps from total unit amps.

Electric Heat Return-Air Temperature *

Electric Heat Supply-Air Temperature *

Calculated Electric Heat Temperature Rise

Auto-calculated as Supply Air Temp minus Return Air Temp.

Calculated Electric Heat CFM – Single Phase

Auto-calculated live. VOLTS X AMPS X 3.41 / 1.08 / Elec heat temperature split = CFM

Calculated Electric Heat CFM – Three Phase

Auto-calculated live. VOLTS X AMPS X 1.73 X 3.41 / 1.08 / Elec heat temperature split = CFM

Seconds to Consume 1 Cubic Foot of Gas *

Gas BTU Content *

Furnace / Unit Thermal Efficiency *

Enter as a decimal, for example 0.80 or 0.92.

Gas Heat Return-Air Temperature *

Gas Heat Supply-Air Temperature *

Calculated Gas Heat Temperature Rise

Calculated Gas Heat CFM

Output BTU ÷ temperature rise ÷ 1.08.

Measured Airflow *

Blower / Control Setup Notes *

Describe speed taps, DIP switches, pulley settings, VFD/BAS command, or controller airflow setup.

Airflow Verification Photos *

Drag & Drop Files, Choose Files to Upload You can upload up to 6 files.

Upload manometer, controller, RPM, fan-table, heater, gas-meter, or airflow-measurement evidence.

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Circuit 1 Operating Data

Use the refrigerant pressure-temperature chart or digital manifold for saturation temperatures.

Is Circuit 1 compressor operating? *

Circuit 1 refrigerant type *

Circuit 1 liquid / discharge pressure *

Circuit 1 liquid saturation temperature *

Circuit 1 liquid-line temperature *

Circuit 1 calculated subcooling *

Circuit 1 target subcooling

Circuit 1 suction pressure *

Circuit 1 suction saturation temperature *

Circuit 1 suction-line temperature *

Circuit 1 calculated superheat *

Circuit 1 target superheat

Circuit 1 single-phase compressor voltage *

Circuit 1 single-phase compressor amp draw *

Circuit 1 L1-L2 voltage *

Circuit 1 L2-L3 voltage *

Circuit 1 L1-L3 voltage *

Circuit 1 compressor L1 amp draw *

Circuit 1 compressor L2 amp draw *

Circuit 1 compressor L3 amp draw *

Circuit 1 outdoor-fan amp draw

Circuit 1 indoor liquid-line temperature

Circuit 1 indoor suction-line temperature

Circuit 1 metering device *

TXV / EEV
Fixed orifice / piston
Other

Circuit 1 observations

Note frosting, temperature differences, valve behavior, cycling, or suspected restriction/charge concern.

Circuit 1 Photos *

Drag & Drop Files, Choose Files to Upload You can upload up to 6 files.

Upload gauge/manifold readings, line temperatures, compressor data, and circuit components.

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Circuit 2 Operating Data

Use the refrigerant pressure-temperature chart or digital manifold for saturation temperatures.

Is Circuit 2 compressor operating? *

Circuit 2 refrigerant type *

Circuit 2 liquid / discharge pressure *

Circuit 2 liquid saturation temperature *

Circuit 2 liquid-line temperature *

Circuit 2 calculated subcooling *

Circuit 2 target subcooling

Circuit 2 suction pressure *

Circuit 2 suction saturation temperature *

Circuit 2 suction-line temperature *

Circuit 2 calculated superheat *

Circuit 2 target superheat

Circuit 2 single-phase compressor voltage *

Circuit 2 single-phase compressor amp draw *

Circuit 2 L1-L2 voltage *

Circuit 2 L2-L3 voltage *

Circuit 2 L1-L3 voltage *

Circuit 2 compressor L1 amp draw *

Circuit 2 compressor L2 amp draw *

Circuit 2 compressor L3 amp draw *

Circuit 2 outdoor-fan amp draw

Circuit 2 indoor liquid-line temperature

Circuit 2 indoor suction-line temperature

Circuit 2 metering device *

TXV / EEV
Fixed orifice / piston
Other

Circuit 2 observations

Note frosting, temperature differences, valve behavior, cycling, or suspected restriction/charge concern.

Circuit 2 Photos *

Drag & Drop Files, Choose Files to Upload You can upload up to 6 files.

Upload gauge/manifold readings, line temperatures, compressor data, and circuit components.

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Airside Operating Temperatures

Return Dry-Bulb Temperature *

Return Wet-Bulb Temperature

Supply Dry-Bulb Temperature *

Supply Wet-Bulb Temperature

Measured Temperature Split

Split-System Refrigerant Piping

Approximate Linear Line-Set Length *

Vertical Lift Between Indoor and Outdoor Units *

Liquid-Line Size *

Suction-Line Size *

Do refrigerant line sizes change? *

Describe line-size changes *

Is a liquid-line filter drier installed? *

Filter-drier location

Are you currently working with a Technical Support Representative?

Case # or Technical Support Representative name

Optional: provide the existing case number and/or the Technical Support Representative name.

Final Diagnostic Notes / Suspected Cause *

Summarize the concern, what changed during testing, and the recommended next step.

Additional Supporting Photos

Drag & Drop Files, Choose Files to Upload You can upload up to 6 files.

Upload any remaining data plates, wiring diagrams, component photos, or test evidence.

Submission Review

Confirm that airflow and refrigerant readings were taken at the same operating stage/speed before submitting.

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