Slant/Fin EH-M3 - Manual

MODEL EH-M3 ELECTRIC BOILER
Multi-stage electronic control with energy saving and other features.
EH-08-138-M3 through EH-20-138-M3, single phase, 3 wire, 120/208V
EH-08-134-M3 through EH-20-134-M3, single phase, 3 wire, 120/240V
EH-12-348-M3 through EH-20-348-M3, three phase, 4 wire, 120/208V
EH-12-344-M3 through EH-20-344-M3, three phase, 4 wire, 120/240V
OPERATION AND INSTALLATION INSTRUCTIONS
CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PAGE
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Air Eliminator and Expansion Tanks . . . . . . . . . . . . . . . . . .2
Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Wiring (Warning: DO NOT turn on breakers on unit) . . . . . . . . .2
Wall Thermostat Flow Switch and Circulator . . . . . . . . . . .2
Service Connections and Electrical Ratings . . . . . . . . . . . .2
“Rough-In” Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fill System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Air Elimination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Bypass Flow Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Check for Proper Boiler and System Operation . . . . . . . . .6
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Control Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Appendix A, B, C, & D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
IMPORTANT:
This manual must be left with owner and should be hung
on or adjacent to the boiler for reference.
Publication No. EH-M3-40 Rev. A • Printed in U.S.A. 1014
Part No. 793860000
M
INI
TRON
LISTED
89C4
Heating Contractor
Address
Phone Number
Model Number
Serial Number
Installation Date