Water-Cooled Water-Chilling and Heat Pump Water-Heating Packages Using the Vapor Compression Cycle (WCCL)
Resources
Program-specific Forms
- ACCL and WCCL Program Updates (2016 and 2017)
- ACCL and WCCL Program Updates (2018)
- ACCL and WCCL Program Updates (2021)
- ACCL and WCCL Program Updates (2022)
- ACCL and WCCL Program Updates (2023)
Data Submittal Forms
- WCCL-DS1 — Data Submittal Form
- WCCL-DS2 — Testing Workbook
- WCCL Minimum Requirement Catalog Template
Facility Approval Forms
Facility Approval Procedures and Checklists
- WCCL-PC1 — Witness Test Procedure and Checklist
- WCCL-PC2 — In-House Test Procedure and Checklist
- WCCL-PC3 — Facility Approval Procedure and Checklist
- WCCL-PC4 — Third-Party Laboratory Procedure and Checklist for Witness Testing
- WCCL-PC5 — Third-Party Laboratory Procedure and Checklist for In-house Testing
- WCCL-PC6 — Facility Approval Procedure and Checklist of the Third-Party Laboratory
Operations Manuals
Related Standard(s) and Documents
- AHRI 550/590 (I-P) and AHRI 551/591 (SI), Performance Rating of Water-chilling and Heat Pump Water-heating Packages Using the Vapor Compression Cycle
- EN Standard 14511, Air conditioners, liquid chilling packages and heat pumps for space heating and cooling and process chillers, with electrically driven compressors
- EN Standard 14825, Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling. Testing and rating at part load conditions and calculation of seasonal performance.
Additional standard–related documents available on the Standards web page.
Additional Resources
Find AHRI Certified® Water-Cooled Water-Chilling and Heat Pump Water-Heating Packages Using the Vapor Compression Cycle.
Specification Sheet Verification Complete this form for each WCCL specification sheet verification request and submit by also completing this online form. A copy of the output report from the manufacturer’s Selection Rating Software must be submitted in conjunction with this form. All fields must be completed prior to submission. Note that AHRI only verifies the Certified Data shown on each output report.
Please allow ten (10) business days for AHRI to conduct verification and respond to your request.
Product Definitions
Water-Cooled Water Chilling and Heat Pump Water-Heating Packages. A factory-made and prefabricated assembly (not necessarily shipped as one package) of one (1) or more compressors, condensers and evaporators, with interconnections and accessories including controls, designed for the purpose of cooling or heating water. It is a machine specifically designed to make use of a vapor compression refrigeration cycle to transfer heat from a cold water fluid circulating system to a warm water fluid circulating system.
Custom Unit. A unit that is not specifically listed in a publicly available sales brochure, magazine advertisement, website posting or Catalog / Selection Rating Application that is a single instance product which contains components or additions that change the performance such that ratings can no longer be obtained by utilizing the Participant’s Catalog / Selection Rating Application. Custom Units shall not be certified and shall not be listed in the AHRI Directory of Certified Product Performance.
Field Trial Unit. A unit that is produced and provided to a customer, for the purpose of gathering data on potential new products. These units are intended to transition into regular production should the field trial be successful. Field Trial Units are subject to the requirements of Custom Units. Field Trial Units shall not be certified and shall not be listed in the AHRI Directory of Certified Product Performance.
New Product Introduction. A new product is one that falls under the Program scope that is available to be marketed, but is not available for standard production and is not listed in the AHRI Directory of Certified Product Performance. Within nine (9) months after AHRI has received notification of New Product Introduction Unit, the Participant shall add the New Product Introduction Units to the Directory in accordance with Section 9.2 or else be in violation of AHRI’s Certify-All Policy.
Modular Chiller Array. A combination of individual certified chillers that may or may not include, from the factory, all required piping, wiring and controls to make the modular chiller array complete. The Modular Chiller Array is not certified, similar to when other certified chillers are piped and controlled together in the field.
Program Scope
Tested and Certified Ratings
This Program tests and certifies Water-Cooled Water-Chilling and Heat Pump Water-Heating Packages Ratings as defined in this Section.
Tested Cooling Ratings. AHRI tests published ratings to AHRI Standards 550/590 (I-P) and 551/591 (SI) and EN Standards 14511 and 14825.
AHRI Standards 550/590 (I-P) and 551/591 (SI) Ratings. The following ratings are verified by test in accordance with AHRI Standards 550/590 (I-P) and 551/591 (SI):
- Full-load cooling capacity;
- Cooling efficiency;
- Evaporator and condenser water pressure drop; and
- Integrated Part-load Value (IPLV.IP or IPLV.SI) or
- Non-Standard Part-load Value (NPLV.IP or NPLV.SI).
Units that are not able to operate at Standard Rating Conditions shall be tested at the unit design conditions and NPLV.IP or NPLV.SI conditions.
Additionally, AHRI shall select a random point within each unit’s published AHRI Certified operating map. This random operating point (5th point) shall be selected to allow AHRI to certify the published operating map conditions at which the unit can operate.
EN Standards 14511 and 14825 Ratings. For units certified to EN Standards 14511 and 14825, The following ratings are verified by test at EN Standard Rating Conditions in in accordance with EN Standards 14511 and 14825:
- Full-load cooling capacity;
- Cooling efficiency;
- Evaporator and condenser water pressure drop;
- Seasonal Energy Efficiency Ratio (SEER); and
- Off mode ratings listed below
- Thermostat off
- Standby
- Crankcase heater (as applicable)
- Off (as applicable)
Certified Cooling Ratings. AHRI certifies published ratings to AHRI Standards 550/590 (I-P) and 551/591 (SI) and EN Standards 14511 and 14825.
AHRI Standards 550/590 (I-P) and 551/591 (SI) Ratings. AHRI certifies the following published operating map ratings in accordance with AHRI Standards 550/590 (I-P) and 551/591 (SI):
- Full-load cooling capacity operating map (100% of rated full-load capacity);
- Cooling efficiency operating map (100% to 25% of rated full-load capacity);
- Evaporator and condenser water pressure drop operating map (100% to 25% of rated full-load capacity);
- Integrated Part-load Value (IPLV.IP and IPLV.SI); and
- Non-Standard Part-load Value (NPLV.IP and NPLV.SI).
EN Standards 14511 and 14825 Ratings. For units certified to EN Standards 14511 and 14825, AHRI certifies the following published EN Standard Rating Condition ratings in accordance with EN Standards 14511 and 14825:
- Full-load cooling capacity;
- Cooling efficiency;
- Evaporator and condenser water pressure drop; and
- Seasonal Energy Efficiency Ratio (SEER).
Tested Heating Ratings. AHRI tests published ratings to AHRI Standards 550/590 (I-P) and 551/591 (SI).
AHRI Standards 550/590 (I-P) and 551/591 (SI) Ratings. The following ratings are verified by test in accordance with AHRI Standards 550/590 (I-P) and 551/591 (SI):
- Standard Rating Conditions: Each AHRI selected test sample shall be tested at one (1) of the Standard Rating Conditions defined in Table 4 of the Standard.
- Selection of Tested Condition: AHRI shall select one (1) Standard Rating Condition from those listed in Table 4 of the Standard for verification. This selected rating condition must be one in which the Participant’s Primary Catalog / Selection Rating Application claims as AHRI Certified for the particular unit being tested.
EN Standards 14511 and 14825 Ratings. For units certified to EN Standards 14511 and 14825, The following ratings are verified by test at EN Standard Rating Conditions in in accordance with EN Standards 14511 and 14825:
- Full-load heating capacity;
- Full-load heating coefficient of performance;
- Evaporator and condenser water pressure drop;
- Seasonal Efficiency (SCOP); and
- Off mode ratings listed below
- Thermostat off
- Standby
- Crankcase heater (as applicable)
- Off (as applicable)
Certified Heating Ratings. AHRI certifies published ratings to AHRI Standards 550/590 (I-P) and 551/591 (SI).
AHRI Standards 550/590 (I-P) and 551/591 (SI) Ratings. AHRI certifies the following published ratings at Standard Rating Conditions as defined in Table 4 of AHRI Standards 550/590 (I-P) and 551/591 (SI) which the Participant’s Primary Catalog / Selection Rating Application claims as AHRI Certified:
- Full-load heating capacity;
- Full-load heating coefficient of performance;
- Full-load heat recovery coefficient of performance; and
- Evaporator and condenser water pressure drop.
EN Standards 14511 and 14825 Ratings. For units certified to EN Standards 14511 and 14825, AHRI certifies the following published EN Standard Rating Condition ratings in accordance with EN Standards 14511 and 14825:
- Full-load heating capacity;
- Full-load heating coefficient of performance;
- Evaporator and condenser water pressure drop; and
- Seasonal Efficiency (SCOP).
Tested Cooling and Heating Ratings. Published ratings of units selected for testing that AHRI Certifies in both Water-Chilling and Heat Pump Water-Heating modes shall be verified as specified in the above Tested Cooling Ratings and Tested Heating Ratings sections during the same scheduled test.