User Guide
Table Of Contents
- ELECTRIC HEATER COMPANY
- WARNING / CAUTION
- TABLE OF CONTENTS
- GENERAL DESCRIPTION
- CONSTRUCTION
- OPTIONS
- Low Water Cut-Off
- Dial Temperature and Pressure Gauge
- Vacuum Relief Valve
- A vacuum relief valve may be provided with the unit to reduce the risk of back siphonage and back pressure of the system. The valve will be shipped loose for in-line installation. Instructions for installation are provided with the valve.
- Electro-Mechanical Timer
- An electro-mechanical 7-day time clock with battery back-up may be supplied for specific timing operations. A set of instructions will be supplied with the timer.
- FINAL CHECKS
- CONSTRUCTION
- GENERAL DESCRIPTION
- Symptom

20
SURFACE MOUNTED THERMOSTAT
1. Disconnect power from unit.
2. Remove access cover and locate thermostat.
3. Disconnect the two (2) or three (3) 14 gauge wires and jumpers, as required.
Control Wires
4. Remove two (2) mounting screws and disconnect from high limit cut-off, if required.
Mounting Screws
5. Replace thermostat using the reverse procedure.










