Sterling Water Heater

To Next Page

Micro Series Water Temperature Control Units

Reference Manual (PN: 682.89373.00) for

Complete Operation and Installation Instructions

(Available online at www.sterlco.com)

Sterling, Inc. Part No: 682.92594.10

2900 S. 160

Street · New Berlin, WI 53151 · USA Bulletin No: HC2-320

Tel. 262.641.8610 • Fax 262.641.8653

Quickstart Installation Checklist

(Refer to main manual for complete installation instructions).

1. Connect 3-phase power based on nameplate data.

2. Install properly sized plumbing between temperature control unit

and primary processing equipment (supply and return).

3. Install properly sized plumbing between temperature control unit

and cooling water supply and return. Cooling water supply must be

at least 16 psi (110 kPa/1.1bar) for a 250˚F (121°C)

configuration

and 55 psi (379 kPa/3.8bar) for a 300˚F (149°C) configuration.

4. Ensure proper pump rotation. (The pump should be moving

clockwise while looking at the motor end).

Unit Operation

(Refer to main manual and controller manual for complete operating instructions).

Start Up

1. Push the ON/OFF rocker switch to the ON ( | ) to energize the unit and begin the temperature control cycle.

The switch will be illuminated whenever the unit is on.

2. The unit will automatically vent for approximately one minute.

3. If needed, press and hold the vent button to purge any additional air from the process loop.

4. Set process temperature (PV) by pressing the Up Arrow or Down Arrow keys.

Shut Down

1. Adjust set point below 150˚ F (66˚ C).

Allow unit to stabilize.

2. Push ON/OFF rocker switch to the OFF

( 0 ) position to de-energize the unit.

Standard Controller

Need help?

Do you have a question about the Sterling Water Heater and is the answer not in the manual?

Summary

Quickstart Installation Guide

Connect 3-phase Power

Connect 3-phase power according to the nameplate data for the unit.

Install Process Plumbing

Install properly sized plumbing between the unit and primary processing equipment.

Install Cooling Water Plumbing

Install plumbing for cooling water supply and return, noting pressure requirements.

Verify Pump Rotation

Ensure the pump motor rotates clockwise when viewed from the motor end.

Unit Operation and Control

Unit Start Up Procedure

Steps to start the unit, including powering on, venting, and setting temperature.

Unit Shut Down Procedure

Procedure for safely shutting down the unit by adjusting set point and powering off.

Spare Parts Location Overview

Troubleshooting Quick Guide

Unit Does Not Turn On

Troubleshooting steps for when the unit fails to power on, checking voltage and fuses.

Unit Does Not Run

Diagnosing issues when the unit operates but does not perform its function, like low pressure.

Temperature Fluctuations;Rapid Cycling

Addresses causes of temperature instability, such as line size or flow issues.

Unit Overheats or Does Not Cool

Troubleshooting for overheating or insufficient cooling, checking valves and relays.

Unit Does Not Heat;Cannot Achieve Set Point

Solutions for heating failures, including checking heaters, contactors, and solenoid valves.