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Thermia EM3 User Manual

Thermia EM3
64 pages
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Installation Guide
Expansion Module 3 (EM3)
For light commercial heat pumps with Genesis control platform
www.thermia.com
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Thermia EM3 Specifications

General IconGeneral
Protection ClassIP20
Power Consumption5 W
Operating Temperature50 °C
Storage Temperature-20°C to +70°C
Relative HumidityMax. 95%, non-condensing
CommunicationModbus RTU
DisplayLCD

Summary

Important Information and Safety Instructions

Safety Precautions

Essential safety measures and warnings for handling the heat pump and its components.

About the Document

Information regarding the intended audience and adherence to standards for this manual.

Maximum Load Specifications

Details on the electrical load limits for various components and outputs of the EM3 module.

Components and Dimensions

Components and Hardware Overview

Lists and illustrates the components included in the EM3 kit and required external parts.

Installation Procedures

General Installation Information

Guidelines on where and how the EM3 module can be installed, indoors or outdoors.

Internal Installation Guide

Instructions for mounting and connecting the EM3 module inside the heat pump's electrical cabinet.

Enclosure Mounting

Details on how to mount the enclosure for external installation using screws or brackets.

Wiring, Mounting Plate, and EM3 Connection

Steps for wiring, fitting the EM3 unit onto the mounting plate, and securing it.

Supported Functions

TWC/WCS Functionality

Description of Tap Water Control (TWC) and Water Charge System (WCS) functions.

Distribution Circuit 2 & 3

Configuration and use of EM3 for controlling heating/cooling distribution circuits 2 and 3.

Distribution Circuit 4 & 5

Configuration and use of EM3 for controlling heating/cooling distribution circuits 4 and 5.

Cooling Functions

Details on passive/active cooling modes, cooling towards borehole, and cooling towards chiller.

Pool Functions

Setup and operation of pool heating and circulation control using EM3.

Legacy Functions

Control of external heat pumps not using the Genesis control system.

Internal Brine Pump Control

Activating internal brine pumps based on external signals for cooling or other systems.

External Brine Pump Start

Starting external brine pumps using a 0-10V signal for temperature control.

Finishing Steps

Final inspection of wiring, placement of decals, and securing the enclosure cover.

Wiring Diagram

Table Item Number Reference

Reference list of numbers and their corresponding components used in the wiring diagrams.