Commercial HPWH Documentation Checklist
Commercial HPWH scheme applications are based on system configurations, not only the heat pump model. The evidence pack needs to describe the heat pump, tank, control logic, pipework, pumps, storage volume, and submission entity clearly enough for modelling and later audit.
What this applies to
This checklist applies to commercial air-to-water HPWH systems being prepared for VEU Activity 44, ESS IHEAB, or AS/NZS 4234 modelling for commercial certificate estimates. Commercial applicants should download the Commercial and Industrial Air Source Heat Pump Water Heater Product Application Guide from the ESC applicant resources before preparing a VEU submission.
Documents required
| Document | Why it is needed |
|---|---|
| EN 14511 test report | Provides the heat pump performance map for commercial modelling. |
| AS/NZS 4692.1 test report | Required for tanks up to 700 L. |
| Tank drawing | Provides tank geometry, connection heights, element locations, and insulation details. |
| System schematic | Defines the system layout modelled for VEU or ESS. |
| Pipe insulation specification | Supports pipe heat loss modelling. |
| Pump performance curve | Confirms flow capability and system behaviour. |
| Control logic or declaration | Confirms setpoints, deadbands, sensors, boost logic, and legionella control. |
| Bill of materials | Confirms component models and quantities in each submitted system. |
| AS/NZS 2712 certificate | Required for tanks up to 700 L where applicable. |
| Installation manual | Supports submission and cross-checks settings, plumbing, and warranty claims. |
| Warranty evidence | Confirms a minimum 5-year warranty with Australian Consumer Law wording for tanks up to 700 L under VEU Activity 44. Can sit inside the installation manual. |
| Data plate images | Confirms model names, ratings, refrigerant type, and refrigerant charge. |
EN 14511 test report
The EN 14511 report is the primary input for the heat pump performance map.
Check that the report includes the tested model name, air dry bulb and wet bulb temperatures, water inlet and outlet temperatures, heating capacity, input power, COP, and units for every reported value.
The report should also include standby power if measured, along with laboratory details and a signature or validation.
The test matrix should be selected before testing starts. Commercial scheme modelling needs performance over a useful range of air and water inlet temperatures.
Tank evidence
For tanks up to 700 L, provide an AS/NZS 4692.1 test report from an accredited laboratory.
For tanks greater than 700 L, EnergyAE needs enough drawing information to calculate heat loss from the tank geometry and insulation properties. The drawing should state internal diameter, internal height, total internal volume, insulation thickness on the wall, top, and bottom, insulation material or thermal conductivity, and connection heights for inlet, outlet, flow, return, sensors, and elements.
System schematic
The schematic should show the exact system to be submitted.
It should include heat pump model and quantity, tank model and quantity, pump locations, flow direction, sensor locations, control valves, boost plant if fitted, pipework between heat pump and tank, and the multi-tank arrangement where relevant.
Control information
The control description should be specific enough to reproduce in a simulation model.
Provide the heat pump on and off conditions, the sensor used for control, pump flow rate or variable flow logic, target outlet temperature if variable flow is used, boost setpoint and deadband, and legionella control temperature and frequency.
Also identify any demand response, timer, or lockout behaviour that will apply in the field.
Warranty requirements
The VEU warranty requirement applies to smaller commercial units, and it is tied to storage volume. From 31 March 2025, a heat pump water heater installed under VEU Activity 44 with insulated storage of 700 L or less must carry a warranty against defects of at least five years from the date of installation, purchase, or supply, and the consumer must be given a copy. The Essential Services Commission sets this requirement. For a system whose tanks are all larger than 700 L, this specific VEU warranty condition does not apply, though the Australian Consumer Law still covers the sale.
Where the requirement applies, the warranty text can sit inside the installation manual. A standalone document is not required, but the text must contain all of the following:
- A minimum five-year term, stated from installation, purchase, or supply.
- Australian contact details for warranty claims: a name, business address, phone number, and email.
- What the consumer must do to make a claim, and who bears the cost of claiming.
- The mandatory Australian Consumer Law paragraph, reproduced word for word as its own standalone paragraph.
The Australian Consumer Law paragraph must appear unaltered:
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
For ESS IHEAB, confirm the current warranty wording against the latest IPART requirements before submission, and note that the Australian Consumer Law applies to the sale in either case. SRES does not cover large commercial systems, so no SRES warranty condition applies here. EnergyAE checks the warranty for any tank of 700 L or less as part of the VEU pack.
What EnergyAE needs from you
Provide the latest version of each document and confirm which model names will appear in the public scheme listings.
If the product will be sold under a local brand rather than the original manufacturer brand, resolve the branding and certificate schedule before submission evidence is prepared.