enphase THZ 5.5 eco Manual

INSTALLATION AND CONFIGURATION MANUAL (PRELIMINARY)
© 2023 Enphase Energy Inc. All rights reserved. February 2023
SG Ready installation and configuration:
tecalor heat pump system
(incl. tecalor ISG plus)
Table of contents
Safety................................................................................................................................................................................3
Read this first ..................................................................................................................................................3
Safety instructions.........................................................................................................................................3
Corporate headquarters contact information ..........................................................................................4
Environmental protection.............................................................................................................................4
Other information ..........................................................................................................................................4
Audience .........................................................................................................................................................4
Preface .............................................................................................................................................................................5
Scope of this document................................................................................................................................5
Compatible heat pumps with this document.............................................................................................5
Optimizing the heat pump using the SG Ready interface........................................................................................7
Performing the prerequisite checks............................................................................................................................7
Hardware requirements ................................................................................................................................7
Connection ISG plus to SG Ready Relay ....................................................................................................................7
Configuring the heat pump system controller...........................................................................................................9
Configuration of WPMsystem ....................................................................................................................10
Configuration of WPM 3 .............................................................................................................................10
Configuration of LWZ ................................................................................................................................... 11
Enabling and configuring the SG Ready function on ISG plus............................................................... 11
Validating the configuration ....................................................................................................................................... 13
Commissioning the Enphase Energy System........................................................................................................... 14
Appendix ........................................................................................................................................................................ 15

tecalor heat pump system configuration
2 © 2023 Enphase Energy Inc. All rights reserved. March 2023
References..................................................................................................................................................................... 15
Revision history............................................................................................................................................................. 16

tecalor heat pump system configuration
3 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Safety
Read this first
Follow the instructions in this manual. These instructions are key to the installation and maintenance of the SG
Ready Relay. To ensure the safe installation and operation of the SG Ready Relay, note the following safety
symbols that appear throughout this document to indicate dangerous conditions and important safety
instructions.
DANGER:
This indicates a hazardous situation, which if not avoided, will result in
death or serious injury.
WARNING:
This indicates a situation where failure to follow instructions may be a
safety hazard or cause equipment malfunction. Use extreme caution and
follow instructions carefully.
NOTE:
This indicates information that is very important for optimal system
operation. Follow instructions closely.
Safety instructions
DANGER:
Risk of electrocution!
Do not attempt to repair the SG Ready Relay. It contains no user-
serviceable parts. Tampering with or dismantling the SG Ready Relay will
void the warranty. If the equipment fails, contact Enphase Customer
Support (enphase.com/support) for assistance or replacement
equipment.
DANGER : Risk
of electric shock
Do not use SG Ready Relay in a manner not specified by the manufacturer.
Doing so may cause death or injury to persons, or damage to equipment.
All sources to equipment being serviced must be disconnected external to
the device. In particular, the storage system may
energize conductors, so
storage circuits must ALWAYS be isolated via circuit breaker or
disconnected before working on any portion of the system.
Be aware that installation of this equipment includes risk of electric shock.
DANGER : Risk
of electric shock. Risk of
fire .
Only use electrical system components approved for wet locations.
Only qualified personnel should troubleshoot, install, or add parts to the SG
Ready Relay
.
Ensure that all wiring is correct and that none of the wires are pinched or
damaged.
Do not work alone. Someone should be in the range of your voice or close
enough to come to your aid when you work with or near electrical
equipment. Remove rings, bracelets, necklaces, watches etc. when working
with batteries, photovoltaic
modules, or other electrical equipment.

tecalor heat pump system configuration
4 © 2023 Enphase Energy Inc. All rights reserved. March 2023
WARNING:
Before installing or using the
SG Ready Relay , read all instructions and
cautionary markings in the technical description and on the
components.
NOTES:
Using unapproved attachments or accessories could result in damage or
injury.
Perform all electrical installations in accordance with all national and local
electrical codes.
Corporate headquarters contact information
Enphase Energy Inc.
47281 Bayside Pkwy,
Fremont, CA 94538
enphase.com
enphase.com/support
Environmental protection
Waste electrical products should not be disposed of with household waste. Please recycle where facilities
exist. Check your Local Authority or retailer for recycling advice.
Other information
Product information is subject to change without notice. All trademarks are recognised as the property of their
respective owners.
User documentation is updated frequently; Check the Enphase website (enphase.com/support) for the latest
information.
Enphase did not author and does not take any responsibility for the functionality or accuracy of information
for third party content linked in this document.
Copyright © 2023 Enphase Energy Inc. All rights reserved.
Audience
This manual is intended for use by professional installation and maintenance personnel.

tecalor heat pump system configuration
5 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Preface
Scope of this document
This document provides the necessary information to configure and setup the supported heat pump for use
with the IQ Energy Router+ and the Enphase Energy System (EES).
For further information regarding the installation of the IQ Energy Router+ package, please review the Quick
Install Guide available in the Enphase documentation center.
This document has been developed after obtaining permission from tecalor. Observe the safety instructions
from tecalor with respect to installation, operation, and maintenance from the heat pump and its equipment
which you can find in References at the end of this document. The information from tecalor might change
and hence, when in doubt, contact tecalor.
Compatible heat pumps with this document
Heat pump Year of
manufacture
Controller Min.controller software
version
THZ 5.5 eco
LWZ
THZ 5.5 flex
LWZ
THZ 504 LWZ 4.02, SW ID 7962
THZ 8.5 flex LWZ
THZ 304 eco
LWZ
THZ 304 flex LWZ
THZ 304 SOL LWZ
THZ 404 eco
LWZ
THZ 404 flex
LWZ
THZ 404 SOL LWZ
TTL 15 ACS
WPMsystem
WPM 449.04, FES 502 02
TTL 15 AS
WPMsystem
WPM 449.04, FES 502 02
TTL 4.5 ICS WPMsystem WPM 449.04, FES 502 02
TTL 4.5 IKCS
WPMsystem
WPM 449.04, FES 502 02
TTL 8.5 ICS
WPMsystem
WPM 449.04, FES 502 02
TTL 8.5 IKCS WPMsystem WPM 449.04, FES 502 02
TTL 10 AC
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTL 13.5 A
WPM 3; WPMsystem
TTL 13.5 I WPM 3; WPMsystem WPM 449.04, FES 502 02
TTL 13.5 IK
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTL 15 ACS
CW26/2015
WPM 3
WPM 390.03, FES 417.02
TTL 15 AS CW26/2015 WPM 3 WPM 390.03, FES 417.02

tecalor heat pump system configuration
6 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Heat pump Year of
manufacture
Controller Min.controller software
version
TTL 20 A WPM 3; WPMsystem WPM 449.04, FES 502 02
TTL 20 AC WPM 3; WPMsystem WPM 449.04, FES 502 02
TTL 25 A CW26/2015 WPM 3; WPMsystem WPM 390.03, FES 417.02;
WPM 449.04, FES 502 02
TTL 25 AC CW26/2015 WPM 3; WPMsystem WPM 390.03, FES 417.02;
WPM 449.04, FES 502 02
TTL 3.5 ACS WPM 3; WPMsystem WPM 449.04, FES 502 02
TTL 34 WPM 3; WPMsystem WPM 449.04, FES 502 02
TTL 4.5 ACS
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTL 47
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTL 57 WPM 3; WPMsystem WPM 449.04, FES 502 02
TTL 6.5 ACS
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTL 8.5 ACS
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTL 9.5 A WPM 3; WPMsystem WPM 449.04, FES 502 02
TTL 9.5 I
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTL 9.5 IK
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTF 20 WPMsystem WPM 449.04, FES 502 02
TTF 35
WPMsystem
WPM 449.04, FES 502 02
TTF 40
WPMsystem
WPM 449.04, FES 502 02
TTF 52 WPMsystem WPM 449.04, FES 502 02
TTF 10 M
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTF 13 M
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTF 16 M WPM 3; WPMsystem WPM 449.04, FES 502 02
TTF 20
WPM 3
TTF 27
WPM 3; WPMsystem
WPM 449.04, FES 502 02
TTF 35 WPM 3
TTF 40
WPM 3
TTF 52
WPM 3
TTF 66 WPM 3; WPMsystem WPM 449.04, FES 502 02

tecalor heat pump system configuration
7 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Optimizing the heat pump using the SG Ready interface
Connect the Enphase IQ Energy Router to a supported heat pump using the SG Ready interface. Once
configured, the IQ Energy Router can optimize the operation of the heat pump to increase the self-
consumption of solar energy and lower the use of energy from the public electricity grid.
NOTE:The SG Ready signal is purely a recommendation to start the heat pump. The Enphase IQ
Energy Router can never force the heat pump system to turn ON or OFF. The comfort level of the
user is always safeguarded, and the correct operation of the heat pump system is ensured.
Performing the prerequisite checks
Perform the following prerequisite checks before proceeding with the wiring and configuration of the heat
pump equipment and SG Ready Relay:
•Follow the Enphase Energy System installation and commissioning instructions in the Enphase
Installer App.
•Activate the Enphase IQ Energy Router and configure it such that it can detect and connect to the
other components such as SG Ready Relay or Energy Meter referred to in this documentation.
Hardware requirements
Install the following hardware before you proceed with this document.
•Enphase hardware
oIQ Gateway
oIQ Battery
oIQ Microinverters
•Enphase Energy System hardware (hard copy guides provided in the box)
oIQ Energy Router
oEnergy Meter
oSG Ready Relay
•Heat pump system
oSupported tecalor heat pump system
otecalor ISG plus wired to the heat pump controller via CAN bus
oControl cable for wiring tecalor ISG plus to SG Ready Relay
NOTE: Install and connect the SG Ready Relay and Energy Meter to the same LAN of the customer.
Connection ISG plus to SG Ready Relay
The ISG plus serves as an information and communication interface between your heat pump and your home
network. For this purpose, the ISG plus provides the local SERVICEWELT website from tecalor. The device has
two contact inputs for coupling with the SG Ready Relay. This gives you the option of integrating your
connected heat pump into an intelligent power grid via SG Ready.

tecalor heat pump system configuration
8 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Source: tecalor
Warning: Electric shock. Do not touch live components as it can lead to dangerous injuries due to
electrical current. Disconnect the whole system before working on it with a separate fuse or via the
main fuse, check that no voltage is present afterwards and secure against switching on again. There
is risk that some components still carry voltage after the main voltage has been switched off.
NOTE: For the SG Ready functionality, you need an ISG plus with software version 4.10.0.0 or higher.
NOTE: Install and connect the ISG plus to the same LAN of the customer as SG Ready Relay and
Energy Meter.
Please check with the customer if a control cable is on site.
Follow the steps to start the connection:
1. Put the control cable into the connection socket of the ISG plus.
2. Connect the control cable with the SG Ready Relay in the following way:
Control cable colour
SG Ready Relay outputs
Brown
25
Grey
26
Black
28
Pink
29
Blue
Not used
White
Not used

tecalor heat pump system configuration
9 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Source: tecalor
Power on
After performing all the steps above, you can apply power by closing the breaker for the heat pump, the Energy
Meter, and the SG Ready Relay, and proceed with the next configuration step below.
Configuring the heat pump system controller
After the installation is done, the SG Ready function must be activated and configured on the heat pump
system controller.
Depending on the system controller of the heat pump, the activation and configuration of the SG Ready
function can be different.

tecalor heat pump system configuration
10 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Configuration of WPMsystem
Source: tecalor
1. Go to the WPMsystem inbuild controller display and click the “MENU” button for three seconds.
2. Go to “COMMISSIONING” > “I/O CONFIGURATION” > “INPUT X 1.13“.
3. Enter the code when you are asked to. The factory programmed code is “1 0 0 0”.
NOTE: Some menu items are protected by a password code. If the factory programmed code is not
working and the new code is not known, reach out to the responsible heat pump installer.
4. Go to “SG READY” and click the “OK” button on the control panel to enable the SG Ready function.
5. Click the “MENU” button again to exit the menu.
NOTE: If you need help identifying the heat pump controller at the site, reach out to the
responsible heat pump installer.
NOTE: A minimum software version is required for the heat pump controller to work with the ISG
plus. You can find the manual to check the minimum software version of the controller here.
Configuration of WPM 3
For the WPM 3 controller there is no special SG Ready enabling necessary.
Source: tecalor

tecalor heat pump system configuration
11 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Configuration of LWZ
For the LWZ controller there is no special SG Ready enabling necessary.
Source: tecalor
Enabling and configuring the SG Ready function on ISG plus
The SG Ready function must be enabled in the local SERVICEWELT portal of the ISG plus. Perform the following
steps to access the SERVICEWELT portal:
1. Open the browser in your PC/Notebook, Tablet or Smartphone.
2. Enter one of the following in the address bar of your browser:
o“http://servicewelt/”,
oautomatically assigned IP address (DHCP enabled) or
o“192.168.0.126” (default IP address; DHCP disabled / IP address assigning failed)
3. Enable and configure the SG Ready function in the SERVICEWELT by performing the following:
a. Go to SERVICEWELT menu bar and select “SETTINGS” “ENERGIEMANAGEMENT”.
b. Set “SG READY ENABLED” to “ON”.
c. Set “SG READY INPUT” to “ISG PLUS”.
Source: Screenshot

tecalor heat pump system configuration
12 © 2023 Enphase Energy Inc. All rights reserved. March 2023
4. Select one of the following options for heating water buffer tank in the SERVICEWELT.
Option
Suitable for heating systems
No buffer
Without buffer tank storage
Buffer without mixer
With buffer tank storage and without mixer
Buffer with mixer With buffer tank storage and with downstream
mixer (higher temperatures in buffer possible)
Source: Screenshot
NOTE: Based on the heat pump system setup, there might be a buffer tank installed or not. If you
do not know if there is a buffer tank installed or not, please reach out to the responsible heat pump
installer.
5. Set values for the following upper temperatures in SERVICEWELT.
a. UPPER ROOM/BUFFER TEMP. HC1
b. UPPER ROOM TEMP. HC2
c. UPPER SET DHW TEMP
NOTE: Consult the homeowner. As a guidance, the usual settings are +5°C for DHW as well as
heating water buffer storage, and +1.5°C for room temperature.
NOTE:
C ontact the responsible heat pump installer if you need help with setting the temperature
offsets.
NOTE:
Do not set the domestic hot water temperatures too high as there might be a risk of
discomfort or injury.
6. Keep the SERVICEWELT tab of your browser open for a validation test.

tecalor heat pump system configuration
13 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Validating the configuration
To check if the SG Ready functionality is wired and configured correctly, perform a final test by following the
steps below:
1. Go to the SG Ready Relay and press the “Select” button.
Source: SG Ready Relay
2. The LED 1 should flash as it is selected now. Press and hold “OK” for one second.
3. Press “Select” again, and the LED 2 should flash. Press and hold “OK” for one second.
4. Now the SG Ready operating state “4” should be enabled.
5. Check the status in SERVICEWELT “ENERGY MANAGEMENT”. The “Status” should be now set to “4”.
Source: Screenshot
6. End the test by clicking the "Select" button on the SG Ready Relay again and select LED 2.
7. Click “OK” for 1 second. The LED 2 glows red. Do the same with LED 1 until both LED 1 and 2 are glowing
red. The SG Ready mode is disabled again, and the test and commissioning were successful.
8. You can now close the SERVICEWELT tab in your browser.

tecalor heat pump system configuration
14 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Commissioning the Enphase Energy System
The last step involves commissioning the EES.
1. Open the Enphase Installer App.
2. Go to the support section of Enphase Installer App where you can find all relevant documentation
needed to commission the EES.
Note: Contact Enphase Customer Support if you experience any issues and need help.

tecalor heat pump system configuration
15 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Appendix
Here is an overview of the SG Ready operating modes.
Operating mode Description
Operating mode (1:0) Standby temperatures according to the operating and installation
instructions of the connected heat pump. Frost protection is
guaranteed.
Operating mode 2 (0:0) Automatic / program operation according to the operating and
installation instructions of the connected heat pump.
Operating mode 3 (0:1) Forced operation with increased values for heating and hot water
temperature.
Operating mode 4 (1:1) immediate control of maximum values (fixed) for heating and hot
water temperature.
References
Current installation manuals, product brochures and further information for tecalor heat pump models and
additional hardware can be obtained on the official website www.tecalor.de. The following are used as source
for setting up this manual:
WPMsystem
•“WPM Bedienungs- und Installationsanleitung” (published: 10.10.2022)
https://www.tecalor.de/content/dam/tec/cdbassets/current/bedienungs-
_u_installationsanleitungen/installation_manual_doc-00082563.pdf
WPM 3
•“Bedienung und Installation WPM 3 Wärmepumpen-Manager” (published: 23.12.2017) -
https://www.manualslib.de/manual/105621/Tecalor-Wpm-3.html
LWZ
•“THZ 5.5 eco Inbetriebnahmehandbuch” (published: 13.01.2022)
https://www.tecalor.de/de/produkte/waermepumpe/luft-wasser-waermepumpen/thz-5-5-
eco/thz-5-5-eco/downloads.html
ISG plus
•“ISG plus Bedienungs- und Installationsanleitung” (published: 01.07.2021)
https://www.tecalor.de/content/dam/tec/cdbassets/current/bedienungs-
_u_installationsanleitungen/instructionandinstallationmanual_doc-00082543.pdf

tecalor heat pump system configuration
16 © 2023 Enphase Energy Inc. All rights reserved. March 2023
Revision history
Revision
Date
Description
Rev 1
March 2023
Initial revision