GROWATT GroBoost Heater Controller Installation Guide

GroBoost quick installation guide

Overview

♦ Package List
Open the package, take out all the accessories, and check the quantity of all the components in the box according to the package list, As shown in Figure 1-1 and Table 1-1.

Table 1-1
♦ Product description
GroBoost can smart control the different brand of waters heaters with integrated immersion heating element. It can control the temperature of the water heater, and work automatically when the solar system has surplus power exporting to the grid to maximize solar self-consumption.

GroBoost is a power regulator to adjust its power output automatically based on resistive loads through wireless commands. With the ShineLink system, it communicates with ShineLanBox through RF signal, accepts commands to adjust power output, and realizes system energy distribution and scheduling. The diagram of one of its application scenario is shown in Figure 1-2, in which the Inverter is communicated with the meter through RS485, and communicate with the LanBox through ShineRFStick.
This application scenario is suitable for the Growatt new generation inverter, like MIN, MID, MOD, SPH and SPA series, which could support to upload the energy meter date to the server.
♦ GroBoost Interface
As shown in Figure 1-4, the device has four indicator lights, four function buttons and three waterproof connector, corresponding to different wiring input. The functions and definitions are shown in Table 1-2.

communication status
D| Load Connectors| 4| LED4| Power indicator
E| Signal Connectors| 5| L1| Phase L1 control button
| | 6| L2| Phase L2 control button
| | 7| L3| Phase L3 control button
| | 8| Home| RF pairing / Reset /Factory Reset

Table 1-2
The following figure 1-5 is the wiring interface of GroBoost, and its functions and definitions are detailed in Table 1-3.

Table 1-3

Installation

Notice:

• Make sure to read the instructions to understand product information and safety precautions before installation;
• The installer must use insulated tools and wear safety equipment during the installation procedure;
• Construct sun and rain shelters to avoid GroBoost directly exposed to sunlight and rain.

♦ Installation Process

• Fix the wall-mounted bracket hanging on the wall with screws, drill holes in the wall after positioning the four screw holes, put the plastic expansion tube, and screw into the wall, to fix the wall hanging.
• There are four screws on the bottom cover of the whole machine, please use a screwdriver to dismantle the screws.
• Remove the lower cover and start to wire it.
• he wire harness passes through the corresponding three terminals and screwed themon the terminals. A 5 pin three-phase power input terminal is for power input line, 3 pin power output terminals is for loads, and the 3 pin RS485 and 12Vdc terminals are for the communication of the future application.
• Screw the wire on the male terminal, connect it to the corresponding female socket of the device, and fix screws on both sides of the terminal to fix the terminals.
• Adjust wiring distance and screw the four screws fixing the sealing lower cover to fix the lower cover.
• Adjust the length of the power and load lines, screw the covers, adjust the wiring head to reduce the space, and make the sealing degree higher.
• Fix the GroBoost on the wall, and tighten the screws on the side.

GroBoost Notice for wiring:

• Remove the lower cover of GroBoost, and you need to pass the wire harness through the corresponding three terminals to prevent the wire harness from being twisted.
• Use a no less than 4mm2 copper core wire for the power line, ground line, and load line. After stripping the wire, make sure that the wire is not too long, generally 10mm.For 485 communication lines please use shielded twisted wire.
• Put the stripped wire into the terminal and use a flat-blade screwdriver to fix the wire,and then connect it to the device.
• The antenna needs to be led out of the device to prevent signal shielding.

Multiple Work Modes

♦ Load Wiring
The diverse load situation corresponds to different wiring ways. In addition, if the immersion heater doesn’t have a temperature sensor, and the GroBoost needs to use the temperature sensors (Pt1000). The following table 3-1 shows the wiring diagram of a diverse load situation.The following figure is the overall detailed wiring diagram.xxxx

loads are for phase L1 output terminals, PT 1000 is for the T1 terminal, which is linked with the load in the phase L1| Figure 31
2| Two singlephase loads| Three-phase power line input, and two single-phase loads are connected separately to phase Li/L2 output terminals. Phase L1 is linked with the PT1000 of the T1 terminal, Phase L2 is linked with the PT1000 of the T2 terminal| Figure 3-2
3| Three singephase loads| Three-phase power line input, and three single- phase loads are connected separately to phase L1/L2/L3 output terminals. Phase L1/L2/L3 is linked with the PT1000 of the T1/T2/T3 terminal| Figure 3-3
4| A threephase load| Three-phase power line input, and a three-phase loads are connected to phase L1/L2/L3 output terminals. Three-phase load is linked with the PT1000 of the T2 terminal| Figure 3-4
5| A singlephase load and a threephase load| Three-phase power line input, L1 output connected relay input, a single-phase load is connected to the Relay OUT2 .Single-phase load is linked with the PT1000 of the T1 terminal. Three- phase load is connected to the Relay OUT1, and L2/L3 phase power output, Three-phase load is linked with the PT1000 of the T2 terminal.| Figure 3-5

The following figure is the overall detailed wiring diagram:
Load situation one: single phase water heater with integrated immersion heating element

• Single-phase power input, a single-phase L1 adjustable power output mode, with a PT1000 temperature sensor.

Figure 3 -1

Load situation two: two single-phase resistive loads, such as two immersion heaters for each water heater.

• Three-phase power input, a single-phase L1 adjustable power output mode and a singlephase L2 fixed power output mode. Two PT1000 temperature sensors for loads of each phase.

Load situation three: three single-phase resistive loads, such as one immersion heater for water heater and two heating spaces.

• Three-phase power input, a single-phase L1 adjustable power output mode and two single-phase fixed power output mode(L2/L3). Three PT1000 temperature sensors for loads of each phase.

Load situation four: a three phase water heater with integrated heating

• Three-phase power input, among three-phase L1/L2/L3, the power of phase L1 is adjustable while that of L2/L3 is fixed, and one PT1000 temperature sensor for threephase load.

Load situation five: a single phase water heater with integrated immersion heating elements and a three phase water heater with integrated heating elements(automatically switchover between two loads through dry contact relay)

• Three-phase power input, among three-phase L1/L2/L3, the power of phase L1 is adjustable while that of L2/L3 is fixed. The power of the single-phase load in phase L1 is adjustable. Two PT1000 temperature sensor for each load.

TR

• Phase L1 has an adjustable power output mode while phase L2/L3 is a fixed power output mode. The adjustable power output mode is used for the PV linkage application,the power output will be adjusted for the resistive load according to the surplus solar power.
• Three temperature sensors are related to the phase L1/L2/L3 separately. The T1 terminal is related to phase L1, the T2 terminal is related to phase L2 and the three-phase load, T3 terminal is related to phase L3.

♦ Installation Check
After the wiring is completed, corresponding inspections are required to ensure that the equipment will not be damaged due to incorrect wiring, or cause leakage and endanger personal safety. The following table 3-2 is what needs to be checked:

whether each part of the GroBoost works well normally after power on
2| Whether the grounding wire is connected| 5| Whether the GroBoost is fixed well
3| Whether the RS485 D-E and D- wires are connected reversely| |

Table 3-2
♦ Work Mode
GroBoost has two main working modes:
Smart mode and PV linkage mode. In addition, the mandatory mode can be triggered by pressing the key.
Smart mode:
The GroBoost will accord to the timing period and the temperature being set to work, which has 5 groups of settable time periods. During the smart mode, the device will work based on its rated power, however, the power output of the phase L1 is a settable.
PV linkage mode:
GroBoost can get a real-time power flow through the ShineLink system.By setting the execution strategy, the GroBoost will automatically work and adjust its output power when there is a certain power exporting to or importing from the grid, to make full use of the solar energy and maximize the solar self-consumption. In addition,there is also a thermal protection function to guarantee the water temperature during the time period and temperature point being set when the offline happens or solar energy is insufficient.
Mandatory mode:
Triggered by manual button, and it could enable the GroBoost to work forcedly, and stop until it reaches the maximum temperature (default temperature is 65 °C), often being used in an emergency situation. For security, the maximum duration of mandatory mode is 2 hours by default.
♦ Display and Setting
GroBoost has four LED lights and four function buttons, which work with multiple devices at the same time. The operation condition and mode of the devices can be monitored and set by the ShineSever or ShinePhone platform, and can also be achieved through the basic indicator lights and buttons. Each LED light and button correspond to a load, and the status of LED light will indicate different working status, as shown in Table 3-3:

Led1 light is off means the load of phase L1 is stand
by
Led2| Led2 light is on means the load of phase L2 is working
Led2 light is off means the load of phase L2 is stand
by
Led3| Led3 light is on means the load of phase L3 is working
Led3 light is off means the load of phase L3 is stand
by
Led4| Led4 light is on means the power source is connected while it is off mean it’s out of power
Take turn to light from LED1 to LED3| The machine is during PV linkage mode (\When there are multiple devices, one of them is in the photovoltaic state.)
Take turn to light from LED3 to LED1| The machine is during Smart mode
Led3| Flash once every 5S RF device is not connected

Table 3-3
When GroBoost is working normally, the real-time operating status will be displayed through LEDs. The specific content is shown in Table 3-4:

Button| Button state| Indicator light| Flashing status| Features
---|---|---|---|---
L1| dog| | Ledl flashes| Ll device switch forced mode / cancel forced mode
Long press 3S| Led 1| Ledl flashes three times| L’I equipment switches photovoltaic model
Long press 3S| Ledl flashes| Ll device switch smart mode/
L2| dog| Led 2| Led2 light flashes| L2 channel equipment switch forced mode / cancel forced mode
Long press 3S| Ledl flashes three times| L2 way equipment switches photovoltaic mode/
Long press 3S| Ledl flashes| L2 way equipment switch smart model
L3| dog| Led 3| Led3 light flashes| L3 way equipment switch forced mode / cancel forced mode
Long press 3S| Led3 flashes three times| L3 equipment switch photovoltaic model
Long press 3S| Led3 light flashes| L3 way equipment switch smart mode/
Home| Long press 3S| Led 3| Quickly flash into the pairing button state Release: 0.5S frequency flash for up to 2 minutes| RF device pairing
Long press 1 5S| Quickly flash into the reset button state| Release the button to reset
Long press 30S| Quickly flash into the state of the factory reset button| Release the button to restore factory settings

Table 3-4
Pairing process:

• STEP1
  Press the Home button of GroBoost for 15S, the LEDS3 light flashes at a frequency of 0.5S

• STEP2
  Short press the pairing button of host (ShineLanBox), as shown on the left in Figure 5.1, the pairing light ④ of the host flashes quickly, they are pairing;

• STEP3
  The GroBoost LED3 light does not flash, the host (ShineLanBox) pairing light ④ is off, the device light ③ flashes, and the pairing is successful;

Note:
The flash number of times of the ShineLanBox device light ③ means the number of devices connected to ShineLanBox.

Device parameters

The equipment specifications are shown in Table 4-1

Table 4-1

Common Problem

Quick ways to deal with common problems.
5.1 Load LED1/LED2/LEDS status light is abnormal

• Confirm the current load working mode and whether the key switch status is normal.

5.2 LEDS status light flashes per 58

• Check whether the GroBoost antenna is well connected:
• Check whether the GroBoost has been paired with ShineLanbox, try to pair again;
• Check the distance between GroBoost and ShineLanbox, is it too far or is blocked by a wall, try to move ShineLanbox closer to GroBoost.

5.3 RS485 can’t communicate

• Check whether the 485 connection is wired, try to replace the 485 cable:
• Check whether the communication parameters are correct, the baud rate, etc.

APP Register

♦ Register
Before using ShinePhone APP first time, the user must register an account in advance.
There are three steps when users register the account:

1. Fill in the account registration informationa) Fill in account information. To fill in the account information, please select the account country, user name, password, email address, and installer number.
2. Add Planta) Add power station name, installation date, country and city, detailed address, time zone, total power of components, power station type, capital gains, power station pictures.
3. Add dataloggera) You can add a data logger by entering the serial number or scanning the collector’s barcode, and entering the collector check code.

GroBoost Setting the Groboost via Shinephone APP

1. Add device

2. After adding Lanbox data logger and matching with the Groboost, the device will be displayed in the Grohome page(device list).

3. Initialization:
   Click GroBoost to enter the initialization page, configure the load information Groboost binding (single phase, three phase, single phase + single phase, single phase + single phase + single phase, single phase + three phase), and after setting the load related information, the real-time information of the load can be displayed and the load can be controlled (Groboost can connect up to 3 resistive heating loads).Load type: confirm the connected load;
   You need to configure the basic information of each connected load separately: working power, custom name, settable load icon, and confirm whether the temperature sensor is connected (after connecting the extra temperature sensor, the load can be detected and controlled for temperature );

4. Mode setting
   Mode settings can be divided into two types, one is smart mode, the other is PV linkage mode;
   Note: Both temperature setting and temperature detection need to be set and operated with a temperature sensor.

5. Intelligent mode:
   Power adjustment enable: only L1 can be set (can control load working power);
   There are two heating modes in the smart mode: constant temperature and timing control modes, among which the L1 function is adjustable; Constant temperature (temperature sensor needs to be installed): set the constant temperature, the device will always keep at the certain temperature;
   Timing: To set the timing, you need to fill in the time, set the temperature and times of repetition(up to 5 times). You can set different temperature values according to different time periods, temperature requirements and usage.

6. Photovoltaic linkage mode:
   Select the load to be controlled, select the priority, enter the linkage name, confirm whether the linkage meter is correct, turn on the linkage enable switch, control linkage execution time, and set linkage tasks.
   Linkage details need to save at least one load, click on the load to enter the advanced settings:

• Recommended settings:a) When photovoltaic power is fed into the grid, turn on heating and set the working parameters of the device; such as: set the temperature and the maximum operating time of the device to avoid excessive operation and waste of electricity;
  When the power drawn from the grid reaches a certain value, it is recommended to turn off the equipment and set the minimum operating time of the equipment (to ensure that the equipment works normally and meet daily needs);b) Set the execution time. The user can set the effective time of the linkage to make the task run within the set time. After the time period is set, the cycle can be set. The cycle is divided into three situations: once, repeat, and custom days of the week. When the user does not set the timing, and starts the linkage.c) Regarding the heating guarantee function: it belongs to the backup plan setting function. The purpose of the heating guarantee function is to ensure that certain time periods are heated to a fixed temperature value. It can also use the grid to continue heating when the photovoltaic is not generating electricity and there is no sunlight so as not to affect the daily life use.(Up to 5 heating times can be added).

  3. Reset load information
     On the GroBoost homepage, click the upper right corner to enter the detailed information, select the connected load, and the system will prompt whether to reset it. After confirming, the original load information will be overwritten.Load settings include the conneced load (other loads can be replaced), power, name, device icon and temperature sensor. There is no need to set the maximum temperature when the temperature sensor is not connected.

  4. Load management
     The load management interface has the functions of editing, turning on and off the load, switching the working mode, setting the maximum temperature, current power, power, setting the rated power, graphs (power, current, voltage, temperature), and deleting the load.

SHENZHEN GROWATT NEW ENERGY CO., LTD.

Documents / Resources

| GROWATT GroBoost Heater Controller [pdf] Installation Guide
GroBoost, GroBoost Heater Controller, Heater Controller, Controller
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