SOLAX POWER Adapter Box G2 Heat Pump Controller User Guide

: June 12, 2024
: SOLAX POWER

Table of Contents

Adapter Box G2 Heat Pump Controller
Product Information:
Contents:
1. Overview of the Adapter Box G2
2. Installation

Adapter Box G2 Heat Pump Controller

Product Information:

Product Name: Adapter Box G2

Manufacturer: Solax Power Network Technology
(Zhejiang) Co.,Ltd.

Model Number: 320101049901

1. Overview of the Adapter Box G2

1.1 Introduction

The Adapter Box G2 is a heat pump controller that communicates
with Solax inverters through RS485 and controls a heat pump using
either a dry contact or an analog output. It allows users to
utilize surplus solar energy from the inverter and battery storage
capacity. Please note that a heat pump can only be connected to the
Adapter Box G2.

1.2 Dimension

The dimensions of the Adapter Box G2 are as follows:

Front view: 125 mm x 125 mm
Side view: 125 mm x 75 mm

1.3 Diagram

The Adapter Box G2 has the following views:

Front view
Left view
Top view
Right view

The Adapter Box G2 is connected to Utility Grid, DC Power, AC
Power, Communication, Indoor, and Outdoor sources.

2. Installation

2.1 Packing List

Check the packaging for any damage or missing items. If there is
any damage or missing items, please contact the dealer.

2.2 Tool Preparation

The following tools are required for installation:

Drill Bit (6mm)
Cross-shaped screwdriver
Cable stripper
Crimping plier
Flat-shaped screwdriver
Network cable crimping plier
Diagonal plier
Rubber hammer
Marker

2.3 Wall Mounting

Follow these steps to mount the Adapter Box G2 on a wall:

Use a marking cardboard to locate the holes and drill them on
the wall using a 6mm drill. The depth should be at least 30mm.
Put the expansion tubes in the holes and tighten them with a
hammer.
Dismantle the top cover of the Adapter Box G2.

Adapter Box G2 User Manual
Solax Power Network Technology (Zhejiang) Co.,Ltd. 320101049901

Contents
1 Overview of Adapter Box G2 …………………………………01
1.1 Introduction ……………………………………………………………………………………………. 01 1.2 Dimension………………………………………………………………………………………………. 01 1.3 Diagram ………………………………………………………………………………………………… 01
2 Installation……………………………………………………………. 02
2.1 Packing List ……………………………………………………………………………………………… 02 2.2 Tool Preparation ……………………………………………………………………………………… 02 2.3 Wall Mounting …………………………………………………………………………………………. 03
3 Electrical Connection …………………………………………… 04
3.1 Connection of the RS485_INV Port …………………………………………………………. 05 3.2 Connection of the RS485 Port………………………………………………………………… 08 3.3 Connection of the Power Adapter Port …………………………………………………… 08 3.4 Connection of the AO Port………………………………………………………………………. 09 3.5 Connection of the DO Port ……………………………………………………………………… 10
4 Configuration of APP …………………………………………… 11
4.1 APP Login ………………………………………………………………………………………………… 11 4.2 Settings for the Adapter Box G2 ……………………………………………………………… 15
5 Technical Specifications ………………………………………. 22 6 Safety…………………………………………………………………… 23 6.1 Certification mark…………………………………………………………………………………… 23
6.2 Safety …………………………………………………………………………………… 23
7 Contact us ……………………………………………………………. 25

1 Overview of the Adapter Box G2
1.1 Introduction
An Adapter Box G2 is a heat pump controller. It communicates with Solax inverters through the RS485 and controls a heat pump with the dry contact or the analog output. Users can control the Adapter Box G2 to make use of the surplus solar energy of the inverter and battery storage capacity. Note: A heat pump can only be connected to a Adapter Box G2.
1.2 Dimension
125 mm

125 mm 75 mm

Front view

1.3 Diagram

Left view

Top view Right view

Utility Grid

DC Power AC Power Communication

Indoor

Outdoor
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2 Installation
2.1 Packing List
Check if there is any distortion or damage during transportation. If there is any damage or items missing, please contact the dealer.

Adapter Box G2 × 1

Self-tapping screws × 4

Expansion tubes × 4

5 pin male pluggable terminal block × 1

2 pin male pluggable terminal block × 1

RJ45 terminals × 2

1 mm² tube preinsulated terminals × 7

2.2 Tool Preparation

Marking Cardboard × 1

Power Adapter × 1 (optional)

Documents

Drill Bit 6)

Cross-shaped screwdriver

Cable stripper

Crimping plier

Flat-shaped screwdriver

Network cable crimping plier

Diagonal plier

Rubber hammer

Marker

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2.3 Wall Mounting
Step1. Use a marking cardboard to locatethe holes and drill them on the wall. Drill holes with a 6 drill. Depth: at least 30 mm.
105 mm

105 mm

Step2. Put the expansion tubes in the holes and tighten them with a hammer.

hammer drill a 6 drill (depth: 30 mm)
Step3. Dismantle the top cover of the Adapter Box G2.
cross-shaped screwdriver torque:1 N·m

Step4. Pass self-tapping screws through the channels in the four corners of the box and screw them tightly.
self-tapping screws Torque: 1.5±0.1 N·m
Heat pump
Note! · Choose a place where the Adapter Box G2 is not directly exposed to the sun and close to the heat pump. · The Adapter Box G2 needs to be installed horizontally. Please refer to picture in step 4 for the right installation
method of the adapter box.

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3 Electrical Connection
The figure below introduces the ports the Adapter Box G2, which shall be connected to the ports of a heat pump and an inverter.

RS485_INV
RS485
other devices
power adapter

DO4 DO3 DO2 DO1 COM
Dry contact
AO1
GND Analog output

Inverter

Adapter Box G2

· Functions of the ports of the Adapter Box G2

Heat Pump

Name of ports Dry Contact(DO) Analog output(AO) RS485_INV
RS485 Power Adapter

Functions of ports
4 channel dry contact
0-10 Vdc analog output Pin 4 and pin 5 are for RS485 communication with the inverter. Pin 3 and pin 6 are for 11-15 Vdc power supply input to the Adapter Box G2.
a branch port of the RS485_INV port for RS485 communication (Pin 4 and Pin 5)
9- 14 Vdc power supply input to the Adapter Box G2

Note!
Pin 3 and pin 6 of RS485_INV port and a power adapter both can supply power for the Adapter Box G2, and users can choose one to get Adapter Box G2 powered.

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By introducing ports of the Adapter Box G2, the specific connection methods of ports among the box and a heat pump and an inverter shall be illustrated below.

3.1 Connection of the RS485_INV port

· Functions of the RS485_INV port: a) communication between the Adapter Box G2 and the inverter. b) power supply from the inverter to the Adapter Box G2.

· RS485_INV Pin Definition

11

2

3

4

5

6

78

8 X X +13V RS485-A RS485-B GND X X

· Cable connection between an inverter and the Adapter Box G2

. Cable connection of RS485_INV port (Adapter Box G2 side)

Step1. Unscrew the waterproof connector of the box, pull out one plug in the rubber stopper and thread a cable through the waterproof connector, the rubber stopper and insert it into the box.

rubber stopper pull out

inside the box

plug waterproof connector

Step2. Make a cable: strip 15 mm layer off the end of the cable in the box and plug the end into a RJ45 terminal according to the pin definition with a plier crimped. Connect the cable with the terminal to the RS485_INV port in the box, ensure rubber stoppers without cable threading are with plugs and then screw the waterproof cover tightly.

Cable stripper
15 mm inside the box

Network cable crimping plier
RJ45 terminal
inside the box

RS485_INV port

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. .Cable connection of the inverter side
The Adapter Box G2 can be connected with different inverters to achieve communication between devices. With matching tests, X1-Hybrid G4, X3-Hybrid G4 and X3-MIC G2 series inverters can be matched to supply power for the Adapter Box G2. For further matching questions of other Solax inverters, please contact us for help before installation.
Here is an introduction to the port of inverters supplying power for the Adapter Box G2.
a) X1-Hybrid G4 and X3-Hybrid G4 series inverters X1-Hybrid G4 and X3-Hybrid G4 series inverters support power for the Adapter Box G2 through COM/LCD port or COM port of the inverter respectively.
Meter/CT

COM/LCD

Upgrade

BMS

Meter/CT

CAN

DRM

COM/LCD

X1-Hybrid G4 inverter for example

· COM Pin Definition of X1/X3-Hybrid G4 series

11
8X

2

3

4

5

6

78

X +13V RS485_A RS485_B GND X X

b) X3-MIC G2 series inverters
X3-MIC G2 series inverters support power for the Adapter Box G2 through RS485 port of the inverter.

X3-MIC G2 inverter for example

· RS485 Pin Definition of X3-MIC G2 series

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2

3

4

5

6

7

8

8 X X +12V RS485_A RS485_B GND X

X

When the inverter and the Adapter Box G2 are well connected, users need to enable the RS485 communication with the Adapter Box G2 in the settings of the inverter.

Notice! A splitter can be used if the communication port of the inverter is occupied.

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LCD setting on the inverter

When the cables are well connected, users need to set the LCD on the inverter to enable the RS485 communication between the inverter and the Adapter Box G2.
a) Setting steps on X1/X3-Hybrid G4 series inverters

===User Settings=== >Advance Setting

===Advance=== >Modbus

===Modbus=== Function Select: >Adapter Box G2

===Modbus=== >Baud Rate:
9600

b) Setting steps on X3-MIC G2 series inverters

Settings Meter Energy

Adapter Box G2

Mode Select Enable

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3.2 Connection of the RS485 port

· Function of the RS485 port: a branch port of RS485_INV port for RS485 communication with other devices.

· RS485 Pin Definition

11

2

3

4

5

6

78

8 X X X 485-A 485-B X X X

Notice: refer to the communication cable connection method of the RS485_INV port.

3.3 Connection of the power adapter port (optional)

· Function of a power adapter A power adapter is optional for the power supply of the Adapter Box G2. If the inverter matched cannot supply power for the Adapter Box G2, a power adapter is needed.
· Cable connection of a power adapter
Step1. Pull out one plug in the rubber stopper, thread the cable of the power adapter through the waterproof connector, the rubber stopper and then insert the cable into the power adapter port.

rubber stopper pull out

power adapter

plug
waterproof connector
Step2. Check the rubber stopper without cable threading through are with plugs and then screw the waterproof connector tightly.

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3.4 Connection of the AO port
Note: open ports without cable threading through must be plugged to prevent water. And reserve a proper length of all connected cables in the box to reduce its pulling force for connected terminals. Step1. Prepare a two-core cable, remove 30 mm layer off from one end, pull the waterproof plug out and thread the cable through the waterproof connector into the box.

30 mm

diagonal plier

waterproof plug

1 mm² cable inside the box

two-core cable diameter:5-10 mm

pull out

waterproof connector

Step2. Strip 7 mm layer off the peeled cables and insert them into 1 mm² tube pre-insulated terminal and crimp them tightly.

7 mm inside the box

cable stripper

1 mm² tube pre-insulated terminal

crimping plier

Step3. Insert the cables with terminals into the male pluggable terminal block and screw them tightly.

2 pin male pluggable terminal block

flat-blade screwdriver blade width: 2.5 mm
Torque: 0.2 N·m

Step4. Plug the male pluggable terminal block with cables into the female pluggable terminal block fixed in the Adapter Box G2 and screw them tightly.

female pluggable terminal block

flat-blade screwdriver blade width: 3 mm
Torque: 0.4 N·m

Step5. Screw the waterproof connector tightly, align the recessed part of the top cover with the protrusion of the box and lock the top cover.

protrusion of the box

recessed part of the top cover

cross-shaped screwdriver
Torque: 1 N·m

Please refer to the manual of a heat pump for how the other end of the cable is connected to the heat pump. 09

3.5 Connection of the DO port

Note: open ports without cable threading through must be plugged to prevent water. And reserve a proper length of all connected cables in the box to reduce its pulling force for connected terminals.

a) DO port connection under the control of dry contact

Step1. Prepare a five-core cable, remove 50 mm layer off from one end, pull the waterproof plug out and thread the cable through the waterproof connector.

50 mm

diagonal plier

five-core cable diameter: 5-10 mm

pull out

waterproof plug

1 mm² cable inside the box
waterproof connector

Step2. Strip 7 mm off the peeled cables and insert them into 1 mm² tube pre- insulated terminal.

7 mm inside the box

cable stripper

1 mm² tube pre-insulated terminal

crimping plier

Step3. Insert the cables with terminals into the male pluggable terminal block, screw them tightly. Insert the male pluggable terminal block with cables into the female pluggable terminal block fixed in the Adapter Box G2.

5 pin male pluggable terminal block

flat-shaped screwdriver blade width: 3 mm
Torque: 0.5 N·m

female pluggable terminal block

Step4. Screw the waterproof connector tightly, align the recessed part of the top cover with the protrusion of the box and lock the top cover.

protrusion of the box

recessed part of the top cover

cross-shaped screwdriver
Torque: 1 N·m

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b) DO port connection under the control of SG Ready Step1. Prepare a two-core cable, then strip, crimp and threading the cable through connectors and then make the cable as the way you have been done in a). Step2. Insert the cables with terminals into the male pluggable terminal block, screw them tightly. Insert the male pluggable terminal block with cables into the DO1 and COM port if the female pluggable terminal block fixed in the Adapter Box G2.
flat-shaped screwdriver blade width: 3 mm Torque: 0.5 N·m
Step3. After step 2 is finished, screw tight the waterproof connecter and lock the top cover as the method in a). Please refer to the manual of a heat pump for how the other end of the cable is connected to the heat pump.
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4 Configuration of APP
The APP “SolaxCloud” is used to control the Adapter Box G2. The screen shots here are for reference only and the actual interfaces may differ. Users can update their APP as needed.
4.1 APP Login
Ø APP account login
· If you don’t have the app or monitoring cloud’s account yet, you can operate as below: Ø Monitoring Cloud Registration
Step 1: Use your smart phone to scan below QR code or search for the keyword “SolaXCloud” in Appstore to download the Monitoring App.

IOS

Google

Step 2: Touch the setting button at the upper left corner of the Monitoring App to choose language. Step 3: Touch “Create a new account” at the bottom of Monitoring App and fill in the information to create the account.

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Step 4: For the first login, click “+” to create site. Fill in site information and type in or scan the Registration No. and follow the instructions to complete the site creation and WiFi connection.
Login account

Registration No.

QR code
Sxxxxxxxxx

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· If you already have the account, you can operate as below: Ø Add Device
Step 1: Login your account and turn to “Device” page in the app. Step 2: Touch the “+” icon on the upper right corner and fill in the information to add the Adapter Box G2.
R code
Sxxxxxxxxx
Ø Wi-Fi Connection Step 1: Login your account and turn to “Account” page in the app. Step 2: Click “Wifi Connection”.
Step 3: Type in or scan the Registration No. of the Adapter Box G2. Then touch “Next” and agree to join the network of the Adapter Box G2.
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Step 4: Type in or choose your home Wi-Fi SSID and password, then touch “Next”. Only 2.4GHz Wi-Fi is available.
Step 5: Follow the instructions to complete Wi-Fi setting, there will be a note when the setting successes. Check more Wi-Fi setting information on www.solaxcloud.com/wifiSetting/ Ø Local Mode Use your smart phone to connect the SolaX Wi-Fi signal (Wifi_Sxxxxxxxx). Then touch Local and type in password (initially same as the Registration No.) to access the Local Mode in the Monitoring App. *Visit the local password setting instruction on www.solaxcloud.com/wifiSetting/

Users can visit the IP address http://192.168.10.10/ in a browser to configure WiFi if necessary. (The password is the Registration No.)
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4.2 Settings for the Adapter Box G2
Ø Monitoring interface Step 1. Click “Device” at the bottom of the interface. Select “Adapter Box” from the drop-down list on the top left corner to enter the monitoring interface.
2
1
Step2. Choose the user’s online device. The status, analog output and the present step of dry contact are as below.

Green points indicate the dry contact relay is closed and grey points mean the relay is open. “Analog output” indicates the analog output voltage which is at the range of 0 ~ 10 V. “Step” indicates the present step of the Adapter Box.
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Ø Setting interface Click the icon below to enter the setting interface.
Users choose “Automatic” and can control a heat pump with the following methods (selecting in the drop-down list of “Control type”) in accordance with the actual cable connection. . Dry Contact Step1. The Adapter Box G2 offers 15 steps. Users set the “Max step” as needed according to the max step of the heat pump connected. Also, the step range of “Step setting” in the setting interface shall change with the parameter of the “Max step” users set.
1
Dry contact setting page
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Step2. Click “Step setting” to set the rate of each step of the Adapter Box in accordance with the rate of the heat pump connected.
2
Step for capacity setting

Adapter Box G2

heat pump for example

Step3. Set the “Fallback step” as needed. That is the step of the Adapter Box when the communication between the inverter and the Adapter Box is disconnected.

3

Step4. Set the “Load capacity” in accordance with the rated power of the heat pump connected to finish settings under dry contact.
4

Step5. Set effective time periods on the “Schedule” setting page to enable the settings of the Adapter Box.

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. . Analog output
Step1. Set the “Max step” to adjust the power accuracy of the step in accordance with the power of the heat pump.

1

Step

Analog output

OFF Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8

0 V 1.25 V 2.5 V 3.75 V 5 V 6.25 V 7.5 V 8.75 V 8.75~10 V

Adapter Box G2

heat pump for example

Step2. Set the “Fallback step” as needed. That is the step of the Adapter Box when the communication between the inverter and the Adapter Box is disconnected.

2

Step3. Set the “Load capacity” in accordance with the rated power of the heat pump connected to finish settings under dry contact.
3

Step4. Set effective time periods on the “Schedule” setting page to enable the settings of the Adapter Box.

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. . . SG Ready
Under “SG Ready” mode, the dry contact only control the default relay DO1. The relay is closed when “Signal ON condition” is met and the relay is open when “Signal OFF condition” is met. Under automatic mode, users select “Automatic”, click “Settings” to select “SG Ready” and set the parameters below.
Step1. Set parameters under the “Signal ON condition” and the “Signal OFF condition” as needed. The “Threshold of battery” shall be set at the range of 10%~100%. The parameters under “Limitation of Signal ON” do not need to be set.

Note: The difference between “Threshold on Feed in power” and “Threshold of consumption” must be greater than the power of the heat pump.

Step2. Select “And” / “Or” under different situations under “Automatic” mode.

Scenario

Situation

“And/ Or” to select

the Result relating to “And/ Or” selection

Realtime power going to grid > the power putting on “threshold on feed in power” “Or”-when either condition is met; send “turn on” com

No 0kW

Realtime battery SOC > the SOC putting on “threshold of battery SOC”

“And”-when both conditions are met -mand to Heat Pump

export control
Battery connected

Realtime power taking from grid > the power putting on “threshold of consumption” “Or”-when either condition is met;

Realtime battery SOC < the SOC putting on “threshold of battery SOC”

“And”-when both conditions are met

send “turn off” com -mand to Heat Pump

Realtime battery SOC > the SOC putting on “threshold of battery SOC” Export control

to select “Or”

send “turn on” com -mand to Heat Pump

set 0kW in system

Realtime power taking from grid > the power putting on “threshold of consumption” “Or”-when either condition is met; send “turn off” com

Realtime battery SOC < the SOC putting on “threshold of battery SOC”

“And”-when both conditions are met -mand to Heat Pump

No 0kW

Realtime power going to grid > the power putting on “threshold on feed in power” either “And” or “Or”

No battery export control Realtime power taking from grid > the power putting on “threshold of consumption” either “And” or “Or”

connected Export control

set 0kW in

This function cannot be supported.

system

send “turn on” com -mand to Heat Pump
send “turn off” com -mand to Heat Pump

Notice: Signal off takes the priority when both “Signal ON condition” and “Signal OFF condition” are met.

The”Minimum per ON signal” indicates the relay shall be closed for at least 5 minutes when it meets the “Signal ON condition”. * The “Maximum ON per day” indicates the relay shall be open when the heat pump is controlled by the Adapter Box for more than 1200 minutes within a natural day.

Step3. Set effective time periods on the “Schedule” setting page to enable the settings of the Adapter Box.

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How to set schcedules Step1. Click “Schedule” in the setting interface to enter the scheduling page. Then touch the icon “+” on the top right corner to set new time periods.
Step2. Set new time periods.

“Activation” makes the schedule users set valid. “Repeated_month”, “Repeated_week”, “Start time” and “End time” specify the valid time periods. The range of “Start time” and “End time” should be at 00:0023:59 and the “End time” must be later than the “Start time”. *Click “Save” when users complete all the settings.
Note: Users can set up to 6 time periods. The enabling switch (the “Activation” switch) and the “delete” icon are used to adjust the schedules.
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5 Technical Data
Product Name Model Max. Dry Contact Analog Output Rated Input Voltage Idle Power Rated Power EIRP Power Frequency Antenna Type Interface Degree of Protection Operating Temperature Wireless Mode Dimension (mm) Net Weight (kg)

Adapter Box G2 Adapter Box G2 2 A 30 V d.c./ 0.5 A 230V a.c. 4
0-10 Vdc 9-14 Vdc
0.5 W 2 W
17.46 dBm (Measured Max. Average) 2.412~2.472GHz PCB antenna RS485 IP65 -40~60 802.11 b/g/n 125 125 * 75 0.4

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6 Certification and Safety
6.1 Certification mark
6.2 Safety
The Adapter Box G2 produced by SolaX Power Network Technology (Zhejiang) Co., Ltd. has been designed and tested strictly in accordance with relevant safety regulations. The safety instructions must be followed when installing and maintaining the electrical and electronic equipment. Improper operation will cause personal injury and property damage to the operator and the third party.
Before installation, ensure all power of the adapter box has been cut off. Do not dismantle or scrap by force. Strictly follow the installation guide to connect cables and the enclosure must be well locked before
the adapter box is electrified. Unauthorized opening and cable connection will void the warranty and cause lethal danger or serious
injury due to electric shock. Refer to the corresponding installation guide for related safety requirements when it is connected to
other devices. Anti-static measures should be taken to decrease the damage of static electricity to electronic
components. Keep away from flammable, explosive materials. All the product labels and nameplate on the inverter shall be maintained clearly visible.
Indicates that the product must not be processed with household waste. It must be brought to an electric and electronic waste collection point for recycling and disposal. By ensuring the appropriate disposal of this product you also help in preventing potentially negative consequences for the environment and human health. The recycling of materials helps preserve our natural resources. For further information regarding the recycling of this product, please contact your municipality, local waste disposal center or the store where the products was purchased.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in
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a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. RF exposure warning This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.
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7 Contact Us
If you have any question or any technicalquestion about Adapter Box, please contact us through the following methods. SolaX Power Network Technology (Zhejiang) Co., Ltd. ADD: No.288 shizhu Road, Tonglu Economic Zone, Tonglu City, Zhejiang Province, China. Tel: +86 571 56260011 FAX: +86 571 56075753 EMAIL: service@solaxpower.com WEB: www.solaxpower.com
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