Von Duprin, Door Opening System, models:

2227 Series	Installation Instructions Manual Service Manual
33/3527A	Installation Instructions Manual
33/35A	Installation Instructions Manual
3350AWDC	Installation Instructions Manual
33A Series	Service Manual Installation Instructions Manual
98/9927	Installation Instructions Manual
98/9949	Installation Instructions
98/9950WDC	Installation Instructions Manual
98/9975 Series	Installation Instructions Manual
9849WDC	Installation Instructions Manual
Allegion 3327A Series	Service Manual
CDXP98	Installation Instructions Manual
Chexit CX33A/35A	Installation Instructions Manual
QEL94/9547 Series	Installation Instructions Manual
Quiet One 9847WDC	Installation Instructions Manual
WS9927	Installation Instructions Manual