ECR, Air Conditioner, models:

EnviroAir ACM-09D-B	Installation Manual And Operating Instructions
R25C	Installation, Operation & Maintenance Manual
R40C	Installation, Operation & Maintenance Manual
RETROAIRE R10C	Installation, Operation & Maintenance Manual
RetroAire R11C	Installation, Operation & Maintenance Manual
RetroAire R90C	Installation, Operation & Maintenance Manual