Slant/Fin Monitron EH-35-135-S2 - User Manual

MODEL EH ELECTRIC BOILER
EH-08-135-S2 through EH-40-135-S2, single phase, 3 wire, 120/208V, 120/240V
EH-12-345-S2 through EH-40-345-S2, three phase, 4 wire, 120/208V, 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Wall Thermostat Flow Switch and Circulator . . . . . . . . . . .2
Typical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Service Connections and Electrical Ratings . . . . . . . . . . . .2
Rough-In Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Electrical Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Typical Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Typical Zone Valve Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Fill System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Air Elimination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Bypass Flow Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . .7
Check for Proper Boiler and System Operation . . . . . . . . .7
Operation (models equipped with seq. control system) . . . . . . .7
Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Appendix A, B, C & D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
IMPORTANT:
This manual must be left with owner and should be hung
on or adjacent to the boiler for reference.
Wiring diagram located on inside front panel.
S2
Heating Contractor
Address
Phone Number
Boiler Model Number
Boiler Serial Number
Installation Date
Part # 790920000 • Publication EH-40-S2 Rev A • Printed in U.S.A. 519

Summary

Operation and Installation Instructions

Description

Provides a detailed overview of the Monitron S2 boiler's construction and features.

Mounting

Details the requirements and procedures for physically installing the boiler unit.

Piping

Covers system piping arrangements, including air elimination and bypass lines.

Wiring

Outlines electrical connections, including thermostat, circulator, and flow switch wiring.

Multi-zone Balancing

Explains how to balance water flow across multiple heating zones for optimal performance.

Start-Up

Fill System

Guides the user through the process of filling the heating system with water.

Water Content of Boiler

Specifies the water volume contained within the boiler unit itself.

Air Elimination

Details methods for removing air from the heating system to ensure proper function.

Bypass Flow Adjustment

Describes how to set the bypass valve for correct water circulation when zones are closed.

Check for Proper Boiler and System Operation

Provides steps to confirm the boiler and entire heating system are operating correctly.

Operation

Periodic Inspection

Appendix A: Thermostat Heat Anticipator Settings

Appendix B: Accumulation of Foreign Deposits in Heat Exchanger

Water Treatment

Advises on water treatment programs to maintain boiler health and extend its lifespan.

Appendix C: Replacement of Electric Heaters and Gaskets

Appendix D: Use of Non-oxygen Diffusion Barrier Underfloor Tubing

Slant/Fin Monitron EH-35-135-S2 Specifications