Haier E-Tower Quick Installation Guide

1. Module Introduction

Appearance description

The main unit is a vertical tower-like structure comprising several modules:

• PCS Module
• Power distribution module
• Battery module
• Mounting base

The control module features:

• PCS module shell
• Power distribution module
• Display

Right side of the Power Distribution

The right side of the power distribution unit includes the following components:

• PV Switch
• PC MC4 port
• GRID surge protection device
• GRID breaker
• BACK-UP breaker
• BACK-UP connecting port
• GRID connecting port

Left side of the Power Distribution

The left side of the power distribution unit includes:

• POWER button
• BAT switch
• BAT- connecting port
• Parallel communication 0 (COMO)
• Parallel communication 1 (COM1)
• Maintenance (LAN)
• BAT + connecting port

Front side of the PV box

The front of the PV box includes:

• PV interface (to PCS)
• Surge protection Device (PV1)
• Fuse protector (PV1)
• Surge protection Device (PV2)
• Fuse protector (PV2)
• PV Switch

Battery module

The battery module has:

• Handle
• Power/Communication connector

Display description

The display shows various statuses:

• SOC value
• SOC power bar
• Charging status
• Discharging status
• Low SOC status
• Fault status
• System operation normally
• Decorative lamp

2. Installation physical requirements

Item inspection

Diagrams show requirements for stacking modules. Ensure correct alignment and that the number of modules (1 to 3) is within the specified limits.

Installation clearance

Diagrams indicate required clearances around the unit. A minimum horizontal clearance of 1000mm (39.37 inches) and vertical clearances are shown.

Level control

Diagrams illustrate the requirement for the unit to be level. The tilt angle must be less than 3° (indicated by a green checkmark ✔️) and not greater than 3° (indicated by a red cross ❌).

3. Battery Installation

Step 1: Place the base

Remove the Power distribution module from its carton. Loosen screws securing it to the base, bracket, and Power distribution module. Place them side by side. The base module must be on a level ground, parallel to the wall. The clearance to the wall should be 93mm (3.66 inches). Use a level rule to check the horizontal angle; the tilt angle must be less than 3°.

Diagrams illustrate the unboxing process, an upper view showing the 93mm clearance, and a frontal view.

Step 2: Stack battery module

If installing multiple battery modules, ensure the terminal sealing ring is well fixed before stacking. Each unit weighs 50 kg (110.2 lbs). Two or more people are recommended for lifting. Align the connector side first, then stack gently to avoid damaging the connector. A caution symbol [!] indicates this is a heavy object.

Step 3: Install the angle bracket

The angle bracket is required for the top battery pack when the Power distribution module is stacked directly on it. Diagrams show the recommended wall mounting assembly for angle bracket and bracket installation, specifying which battery modules (e.g., Batt. No.1, No.2, No.3) require a mounting assembly.

Diagrams A, B, C, and D illustrate fastening the installed battery module, adding an additional module, fastening the stacked module, and installing angle brackets in the upper module, respectively.

Step 4: Bracket fixing bolt positioning

Consider the surface condition before fixing the bracket. The horizontal spacing for vertical beams is 330mm (13 inches), and the vertical spacing for the same beam is 450mm (17.7 inches).

Step 5: Install bracket

5.1. Mark the screw position

Place the bracket against the wall on the angle bracket, ensuring screw holes are aligned, and mark the drilling points.

5.2. Drilling and fixing the bracket

For concrete or brick walls, cover the battery connector to prevent falling debris. This method is also suitable for wooden walls.

Note: The self-tapping screw must penetrate the wall at least 38mm.

1. For wooden walls: Use four ST6.3*40 self-tapping screws to drill directly into the wall.
2. For concrete walls: Pre-drill holes using a 13/64 bit, insert expansion tubes, then use four ST6.3*40 self-tapping screws to fix the bracket.

Step 6: Bracket assembly

Reinforce the bracket by fixing it with screws and the angle bracket. A table provides dimensions for various configurations, including width (330mm), bracket height (450mm), and different battery module stack heights.

4. Installation of Power Distribution Module and Inverter

Step 1

Place the Power distribution module horizontally on level ground and loosen the screws on both sides.

Step 2

Open the inverter shell upwards to 90° and clamp the bracing piece into the slot. Ensure the bracing piece is securely in place.

Step 3

Fix the mounting beam with the inverter bracket to the shell interior. The inverter bracket must be mounted with the arrow facing upward.

Step 4

Close the cover. Stack the Power distribution module on top of the battery modules stack. Fasten the battery module and Power distribution module.

Step 5: Install the inverter

a. Fasten the ground cable on the inverter side with a screw (M5*12).

b. Open the cover as per step 3.

c. Two people are required to lift and hang the inverter into the shell. Align the inverter bracket with the convex section of the inverter.

d. Fasten the ground cable on the PCS module shell with a screw (M5*12).

e. Fasten the screw (M4*40) between the inverter and PCS module shell from the outer sides of the shell.

Step 6: Meter installation

Before installing the inverter, use a screwdriver to remove the screws from the protective cover. Loosen the cable gland and remove the large watertight cap. For subsequent wiring, refer to the inverter instruction manual. A diagram shows the electrical connections, including PV strings, inverter, distribution box, grid, backup, load, meter, RS485 communication, and CT direction.

5. Electrical Connections

Warning: Do not power on the system during electrical connections.

Power/BACKUP/GRID/Antenna/BMS connection

1. Power cable connection: Match the plug and socket according to the colors.
2. BACKUP/GRID cable connection: Select the corresponding plug and socket and push the connectors to a tight junction.
3. Antenna cable connection: Align the ports of the cable and interface, then rotate and tighten.
4. BMS cable connection: Select the corresponding interface and insert.

PV cable installation

1. Select a suitable DC cable and strip the wires to 7 ± 0.5mm.
2. Take the DC terminal out of the accessory bag, turn the screw cap to disassemble it, and remove the waterproof rubber ring.
3. Pass the stripped DC cable through the nut and waterproof rubber ring.
4. Connect the wire part of the DC cable to the metal DC terminal and crimp it with a special DC terminal crimping tool.
5. Insert the crimped DC cable into the DC terminal firmly, then insert the waterproof rubber ring into the DC terminal and tighten the nut.
6. Measure PV voltage of DC input.
7. Connect the wired DC terminal to the inverter.

AC cable installation

Specifications on cables:

1. Disassemble the AC connector. Strip the AC wires about 9mm.
2. Set the parts on the cable.
3. Crimp wires with the specified twisting torque.
4. Push the Snap joint into the Lock wire joint.
5. Perform the same installation for both cable end plug and socket connectors.
6. Mating plug and socket.

6. System Initializing

The system components involved in initialization are:

• BAT Switch
• POWER Button
• GRID Breaker
• BACK UP Breaker
• Power Distribution Module
• DC Switch

1. Close the BAT Switch and press and hold the POWER button for more than 3 seconds.
2. Close the GRID Breaker and BACK UP Breaker.
3. Close the PV switch of the Power Distribution Module and the DC Switch of the inverter.

7. Association to Cloud

After completing the quick installation, perform the pairing procedure with the Nahui Business application, following the instructions in the “H1PH-1J & HA1L Quick Installation Guide for Cloud - Nahui Energy”.

There are three ways to download and install the latest App:

1. Search for the “Nahui Business” App in Google Play or App Store.
2. Scan the QR code provided to download.
3. Search at www.nahui-newenergy.com