Chromalox, Water Heater, models:

NWH-185015	Installation, Operation And Renewal Parts Identification
NWH-31225	Installation, Operation And Renewal Parts Identification
NWHMT	Installation & Operation Instruction
PD444-2	Installation Instructions
PE404-8	Nstallation, Operation And Renewal Parts Identification
TBL	Installation Instructions
VERSATHERM PE414-3	Installation & Operation Manual