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Engineering Specifications
Our extensive system engineering specifications offer in-depth guidance on installation requirements, common applications, and the assembly of components.
| BULLETIN NUMBER | TITLE | DATE PUBLISHED |
| Bulletin 20-011 | Modular Air Handler Specifications (M2430, M3036, M4860) | July 2023 |
| Bulletin 20-011 (UK) | Modular Air Handler Specifications (M2430, M3036, M4860) | July 2023 |
| Bulletin 20-015 | System Component Specifications (Accessories) | December 2016 |
| Bulletin 20-019 | Vertical Air Handler Specifications | April 2020 |
| Bulletin 20-019 (UK) | Vertical Air Handler Specifications | April 2020 |
| Bulletin 20-020.1 | M Series Blower Module Specifications | August 2021 |
| Bulletin 20-020.1 (UK) | M Series Blower Module Specifications | April 2020 |
| Bulletin 20-020.2 | M Series Refrigerant Coil Module | June 2026 |
| Bulletin 20-020.3 | M Series Chilled Water Coil Module | January 2019 |
| Bulletin 20-020.4 | M Series Heating Module | December 2018 |
| Bulletin 20-020.5 | Vertical Plenum Module | April 2018 |
| Bulletin 20-020.6 | Return Plenum Module | October 2012 |
| Bulletin 20-020.7 | Adapter, Supply Plenum | March 2019 |
| Bulletin 20-025 | Electric Duct Furnace | April 2015 |
| Bulletin 20-034 | Return Air Adapters | March 2023 |
| Bulletin 20-040 | Blower Curves | August 2007 |
| Bulletin 20-054 | Supply and Sound Attenuator Duct | February 2023 |
| Bulletin 20-056 | Outlet Kits | April 2018 |
| Bulletin 20-058 | Slotted Outlet Plenum Takeoff Kit | June 2007 |
| Bulletin 20-060 | Rigid Sound Attenuator | April 2018 |
| Bulletin 20-065 | Round Outlets | January 2023 |
| Bulletin 20-066 | UL-555C Fire-Rated Outlet | March 2009 |
| Bulletin 20-068 | Twist Fit System Outlet Kits (UPC-89T) | May 2020 |
| Bulletin 20-070 | Slotted Outlet | April 2021 |
| Bulletin 20-080 | Plaster Frame Kit | October 2019 |
| Bulletin 20-081 | Outlet Screens | April 2018 |
| Bulletin 20-083 | Condensate U-trap | April 2021 |
| Bulletin 20-085 | Mild Weather Control Kit | August 2006 |
| Bulletin 20-090 | Unico Thermostats | October 2023 |
| Bulletin 20-100 | Sample Specification | October 2013 |
| Bulletin 20-110 | Engineering Drawing Request Form | July 2004 |
| Bulletin 20-132 | UV Light Module Specifications | June 2020 |
| Bulletin 20-133 | Air Filter Specifications | August 2020 |