THERMO 2000 MINI ULTRA User Manual

Electric Boilers
MINI ULTRA
Models from 3 kW to 12 kW : 208/240V single phase
INSTALLATION & OPERATING MANUAL
Your MINI ULTRA Electric Boiler has been carefully assembled and factory tested to provide
years of trouble-free service. The following information and safety measures are provided to
enable proper installation, operation, and maintenance of this product.
It is imperative that all persons who are expected to install, operate or adjust this boiler
should read these instructions carefully.
Any questions regarding the operation, maintenance, service or warranty of this electric
boiler should be directed to the supplier.
When all installation steps have been completed, keep this installation manual in a safe
place (close to the boiler) for future reference.
THERMO 2000 Inc. Revision: May 2015
Printed In Canada

THERMO 2000 MINI ULTRA Specifications

General

Fuel Type	Natural Gas or Propane
Efficiency	95% AFUE
Heat Exchanger Material	Stainless Steel
Control System	Digital
Ignition Type	Electronic
Venting	PVC, CPVC

Summary

General Safety Precautions

Introduction

Local Installation Regulations

Ensure installation complies with local codes and regulations.

Installation

Installation Safety Measures

Follow safety measures for pressure relief valve and system operation.

Installation Location

Choose a clean, dry location, protected from physical damage and extreme temperatures.

Required Clearances

Boiler Water Connections

Connect accessories and piping according to diagrams and mounting position.

Pressure Relief Valve Installation

Install the supplied valve correctly and connect discharge piping safely.

Main Boiler Supply

Conform to NEC and local codes for wiring and grounding.

External Accessories Electrical Supply

Outdoor Temperature Sensor

Connect for outdoor reset operation; omit for fixed temperature.

Thermostat and Pump Connections

Connect low voltage thermostat and circulating pump according to diagram.

Adjustments of the Control Module

Control Module Interface Operation

Fixed Boiler Temperature Set Point Operation

Outdoor Reset Operation

Operation sequence for modulating temperature based on outdoor conditions.

Automatic Heating Shut Down

Controller Configuration

Proper configuration is important for maximizing system performance.

User Target Temperature Adjustments

Boost System Operation

Start Up Operation

Preparatory Steps for Startup

Ensure all connections are made, system is filled, and air is eliminated.

Startup and Inspection Procedures

Measure amperage, check pressure, and observe temperature changes.

Troubleshooting