Q U I C K I N S T A L L G U I D E
(Model: HEMS-RM-01)
IQ Energy Router+ for Water Heater
The IQ Energy Router+ for Water Heater (HEMS-RM-01) for electric water heaters includes the Enphase IQ Energy Router, an
Energy Meter, and a Relay. The IQ Energy Router integrates Enphase solar and storage battery systems with electric water heaters,
EV chargers, and other devices to maximize self-consumption and minimize costs for the overall site. Installers should use the
Enphase Installer App and the Enphase Installer Portal to install and maintain the system. System owners can use the Enphase App to
monitor energy and control the system.
1. Introduction
The IQ Energy Router, Energy Meter, and Relay are connected to the home router directly or via an Ethernet switch. To install the
IQ Energy Router, Energy Meter, and Relay, read and follow all warnings and instructions in this guide. Safety warnings are listed at the
end of this guide. If you do not fully understand any of the concepts, terminology, or hazards outlined in these instructions, refer for
the installation to a qualified electrician or installer. All installations must comply with national and local electrical codes. Professional
installation is recommended.
Figure 1: Single-phase setup
Applicable regions:
© 2025 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed at
Ì140-01014-02VÎ
https:/ /enphase.com/trademark-usage-guidelines
are trademarks of Enphase Energy, Inc. in the U.S. and other countries.
Data subject to change. 2025-03-06
140-01014-02
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