Other Comp
A google search of "Hinge Waterbox Aftermarket Solution" finds a number of solutions from Trane and Johnson Control York as well as a Trane Hong Kong PDF from 2017 showing a hinge in that brochure.
Vimeo Videos:
- Hinge Waterbox Aftermarket Solution
- https://vimeo.com/138095672
- TraneHK - 2017: Advanced Technology Hinged Waterbox Aftermarket Solutions
- https://www.tranehk.com/files/News/Newsletter/Volume%208_Dec2017.pdf