Page 1 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual Issue Date 2024-10-12 HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei Digital Power Technologies Co., Ltd. and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...
Page 3: About This Document
Purpose This document describes routine maintenance, troubleshooting, and parts replacement of LUNA2000-215-2S12, LUNA2000-215-2S10, Smart String Energy Storage Systems (also referred to as ESSs). Before maintaining the ESS, read this document carefully to understand the safety information as well as functions and features of the ESS.
Page 4: Change History
Updated 9.1 (Optional) Replacing a Thermal Runaway Suppression Device (TRSD). Updated 12 Replacing an Emergency Stop Switch. Issue 01 (2024-07-31) This issue is used for first office application (FOA). Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 5: Table Of Contents
2.7 Annual Maintenance................................33 2.8 Replacement of Components with a 10-Year Service Life..................33 3 Alarm Reference........................35 4 Replacing a Battery Pack.....................36 4.1 Fixture....................................... 38 4.2 Replacing an Entire Battery Pack............................ 40 Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 6 9.3 Replacing a Heat Detector.............................. 152 9.4 (Optional) Replacing a CO Sensor..........................154 9.5 Replacing a Fire Alarm Horn/Strobe..........................156 10 Replacing an Indicator Board..................158 11 Replacing a Travel Switch....................162 Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 7 D.1 Draining Coolant from the LTMS..........................193 D.2 Draining Coolant from the PACK/PCS.........................197 D.3 Adding Coolant to the LTMS............................202 E Contact Information......................207 F Digital Power Customer Service..................209 G Acronyms and Abbreviations................... 210 Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 9: Personal Safety
D ANGER During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The dielectric withstanding voltage level must comply with local laws, regulations, standards, and specifications. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 10: General Requirements
Personnel who will perform special tasks such as electrical operations, working at heights, and operations of special equipment must possess the required local qualifications. ● Only certified high-voltage electricians are allowed to operate medium- voltage equipment. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 11: Electrical Safety
Observe the power plant safety regulations, such as the operation and work ticket mechanisms. ● Install temporary fences or warning ropes and hang "No Entry" signs around the operation area to keep unauthorized personnel away from the area. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 12 Do not use solvents such as water, alcohol, or oil to clean electrical components inside or outside of the equipment. Grounding ● Ensure that the grounding impedance of the equipment complies with local electrical standards. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 13: Cabling Requirements
24 hours before they are laid out. ● Do not perform any improper operations, for example, dropping cables directly from a vehicle. Otherwise, the cable performance may deteriorate due Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 14: Environment Requirements
1.3 Environment Requirements D ANGER Do not expose the equipment to flammable or explosive gas or smoke. Do not perform any operation on the equipment in such environments. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 15 Do not install the equipment in an area conducive to the growth of microorganisms such as fungus or mildew. ● Do not install the equipment in an area with strong vibration, noise, or electromagnetic interference. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 16: Mechanical Safety
Do not mount it on an insecure moveable object or metal object with sharp edges. Make sure that the hooks will not slide off. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 17 ● Use correct tools and operate them in the correct way. Moving Heavy Objects ● Be cautious to prevent injury when moving heavy objects. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 18 The tilt angle α of a cabinet with packaging must be less than or equal to 15°. After the cabinet is unpacked, its tilt angle α must be less than or equal to 10°. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 19: Working At Heights
● Behave cautiously when working at heights. Do not rest at heights. Using Ladders ● Use wooden or insulated ladders when you need to perform live-line working at heights. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 20 Do not drag steel ropes and hoisting tools or bump the hoisted objects against hard objects during hoisting. ● Ensure that the angle between two hoisting ropes is no more than 90 degrees, as shown in the following figure. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 21: Equipment Safety
If the ESS is faulty, do not stand within the opening range of the cabinet doors. CA UTION Evacuate from the site immediately once the fire alarm horn/strobe is triggered. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 22: Battery Safety
To avoid leakage, smoke, flammable gas release, thermal runaway, fire, or explosion, do not disassemble, alter, or damage batteries, for example, insert foreign objects into batteries, squeeze batteries, or immerse batteries in water or other liquids. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 24 ● Force majeure such as earthquakes, floods, volcanic eruptions, debris flows, lightning strikes, fires, wars, armed conflicts, typhoons, hurricanes, tornadoes, and other extreme weather conditions Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 25 Do not use a damaged battery (such as damage caused when a battery is dropped, bumped, bulged, or dented on the enclosure), because the damage may cause electrolyte leakage or flammable gas release. In the case of Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 26 Instead, transport the batteries to a safe isolation point and contact technical engineers in a timely manner. ● In backup power scenarios, do not use the batteries for the following situations: Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 27: Short Circuit Protection
Do not place waste batteries in environments with high humidity or corrosive substances. ● Do not use faulty batteries. Contact a battery recycling company to scrap them as soon as possible to avoid environmental pollution. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 28: Routine Maintenance
● After the maintenance or repair is complete, remove the ground cable between the loop that has been maintained and the main ground loop. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 29: Powering Off The Ess
Step 1 Log in to the SmartLogger WebUI, choose Maintenance > Connect Device, and click Step 2 Click Monitoring, view the device status, and ensure that the shutdown is successful. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 30: Power-Off Operations
Step 1 (Optional) Turn off the ESS power switch on the UPS side. This operation is required when a UPS is configured. Step 2 (Optional) Turn off the disconnector on the Rack Control Module (RCM). This operation is required when a disconnector is configured. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 31: Preparations Before Maintenance
This section lists only personal protective equipment. For details about the tools required for replacement, see the specific parts replacement section. Insulated gloves Protective gloves Goggles Dust mask Insulated shoes Reflective vest Safety helmet Safety harness Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 32: Routine Maintenance
Check that there is no foreign matter, ice, Clean up accumulated or snow on the top of the explosion relief objects in a timely panel. manner. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 33: Quarterly Maintenance
If the dirt or blockage is severe, increase the maintenance frequency. 2.5 Quarterly Maintenance Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 34: Pack
Check for leakage at the coolant inlet and Leakage at the outlet of the PCS. coolant inlet and outlet: Replace the male connectors of the stop valves at the inlet and outlet after draining the coolant. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 35: Ltms
2.5.4 Liquid Cooling Pipe Item Troubleshooting Power-Off Required or Check whether leakage Replace the liquid cooling pipe. occurs on the liquid cooling pipe and coolant inlet and outlet. 2.6 Semi-annual Maintenance Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 36: Battery Pack/Pcs Maintenance Fixture
Check that cables are intact, Replace the faulty cable. especially that the cable sheath contacting a metal surface is intact. Check that the ground cable Ensure reliable grounding. is securely connected. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 37: Pcs
Clear the blockage. vent of the electric control module is not blocked. Check that the wiring Reconnect the cables. terminals at the rear of the electric control module are securely connected. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 38 Add or Drain Coolant? Check that coolant in the Replace the LTMS. tank does not leak. Check that the multi-way Replace the LTMS. valve generates no abnormal noise. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 39 Check that all pipe clamps Tighten the clamps or replace are secured. the damaged clamp. Check that all cables are Replace the faulty cable. intact. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 40: Annual Maintenance
SmartLogger WebUI and app. 2.8 Replacement of Components with a 10-Year Service Life LTMS Item Troubleshooting Power-Off Required or LTMS For details, see 7.1 Replacing LTMS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 41 For details, see 9.4 (Optional) Replacing a CO Sensor. Fire alarm horn/strobe For details, see 9.5 Replacing a Fire Alarm Horn/Strobe. T/H sensor For details, see 16 Replacing a Sensor. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 42: Alarm Reference
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 3 Alarm Reference Alarm Reference For details about the alarms, see LUNA2000-(215-2S10, 215-2S12) Smart String ESS Alarm Reference. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 43: Replacing A Battery Pack
Keep batteries in the correct direction during transportation. They must not be placed upside down or tilted, and must be protected against falling down, mechanical impact, rains, snows, and falling into water during transportation. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 44 ● Prevent nuts from falling off during removal and installation. After removing nuts, ensure that no residue is left to avoid short circuits. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 45: Fixture
● Place the ladder close to the handwheel and align it with the fixture. Stand on the ladder to operate the handwheel and observe the fixture connection and battery installation progress. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 46 ● If the two small lead screws are misplaced during the operation, switch the shifter to position 1 and manually rotate the lead screws to correct their positions. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 47: Replacing An Entire Battery Pack
The following tools are available. Tool Specifications Obtaining Method Insulated torque Including 7#, 8#, Prepared by the customer socket wrench 10#, 13#, 17#, and 19# sockets, extension rod ≥ 80 Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 48 (DC+ OUT, DC– OUT, DC+ IN, and DC– IN), contact service engineers for handling. Step 4 If the battery pack appears normal and has no irritating odor, remove the faulty battery pack. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 49 Remove the coolant inlet and outlet of the liquid cooling pipe: Remove the branch liquid cooling pipe and the old female connector of the stop valve. Retain the old male connector. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 50 Step 5 Use a forklift or crane to transport the fixture packing case and open the packing case. Figure 4-3 Unpacking the fixtures Step 6 Take out the battery pack maintenance fixture (pack fixture for short). Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 51 Figure 4-4 Taking out the fixtures Step 7 Insert the forklift tynes into the pack fixture, adjust the tightness of the long bolt, and secure the pack fixture to the forklift. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 52 Use the forklift to lift the fixture until the drawer handle is slightly higher than the cabinet connecting rod. Keep the front end of the fixture 200–900 mm away from the pack to prevent collision. Figure 4-6 Installing the pack fixture Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 53 Rotate the handwheel clockwise, align the hole on the battery connecting rod retainer with the hole on the battery connecting rod, and insert the pin. Rotate the handwheel counterclockwise to pull the battery pack out of the ESS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 54 Switch to position 2. Rotate the handwheel clockwise until the drawer handle is fully retracted, and remove the battery pack. Remove the battery connecting rod. Figure 4-9 Taking out the battery pack ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 55: Installing A New Battery Pack
Insert the forklift tynes into the fixture, adjust the tightness of the long bolt, and secure the pack fixture to the forklift. Figure 4-10 Securing the battery pack to the pack fixture (1) Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 56 Lower the forklift tynes until the drawer handle comes in contact with the mark on the cabinet connecting rod. Switch to position 1, rotate the handwheel clockwise, and push the front part of the battery pack into the cabinet. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 57 Rotate the handwheel clockwise to push the battery pack completely into the cabinet until the front end of the battery pack is flush with the guide rail of the cabinet. Figure 4-13 Pushing the battery pack completely into the cabinet Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 58 Install the screws on the other side of the battery pack and use a socket to tighten the screws on both sides. Remove the cabinet connecting rod. Remove the battery connecting rod. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 59 Figure 4-16 Installing the cables and pipes Step 7 Connect the new male connector of the stop valve to the new battery pack, and connect the old female connector to the new male connector. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 60: Replacing A Bmu Collection Board
1–3: Disconnect the power cables and communications cable. 4: Remove the PACK extinguishant port. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 61 5: Remove the ground cable. Figure 4-18 Removing cables and pipes from the panel Step 2 Install the maintenance fixture, and remove the screws securing the general power ports and panel in sequence. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 62 1: Slowly pull out the battery pack panel until the general power terminals are removed from the panel. 2–3: Cut off cable ties. 4–6: Remove the cable harness. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 63 Figure 4-21 Removing the cable harness on the left Step 5 Remove the two cable clips from the front panel and slowly remove the panel. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 64 Any BMU collection board can be replaced separately. When removing a BMU collection board, remove the FPC module and cable harness from the BMU collection board on the left. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 65 Left 2 Step 1 Remove the cable See the figures of the first BMU harness from the collection board on the left. first BMU collection board on the left. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 66 Left 3 Step 1 Remove the cable See the figures of the second BMU harness from the collection board on the left. second BMU collection board on the left. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 67 Step 1 Remove the cable See the figures of the second and harnesses from the third BMU collection boards on the second and third left. BMU collection boards on the left in sequence. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 68 Step 4 1–2: Press both ends of the FPC connector and remove it in the FPC flat cable direction. 3–4: Remove the cable harness plug. 5: Remove the cable shown in the figure. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 70: Replacing A Balancing Dcdc Module
(prepared by the customer), and cable tie ● You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 71 5: Remove the ground cable. Figure 4-24 Removing cables and pipes from the panel Step 2 Install the maintenance fixture, and remove the screws securing the general power ports and panel in sequence. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 72 1: Slowly pull out the battery pack panel until the general power terminals are removed from the panel. 2–3: Cut off cable ties. 4–6: Remove the cable harness. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 74 Step 8 Install the communications terminals and bus terminal on the front panel, install the panel on the large window on the top cover using guide pins, and secure the panel. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 75: Replacing An Ntc Cable Harness In The Battery Pack
Phillips screwdriver (M4, length < 100 mm) ● You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 76: Replacing An Ntc Cable Harness On The General Positive And Negative Power Component
Phillips screwdriver (M4, length < 100 mm) ● You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 77 Step 5 Install the general power ports and assemblies and tighten the M8x20 screws to 13 N·m. Step 6 Install the general positive and negative power component. For details, see Replacing a BMU Collection Board. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 78: Replacing A Pcs
Retain the old male connector. This section uses a PCS AC power cable with four cores (A, B, C, and N) as an example. The actual situation may vary. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 79 Secure the fixture to the ESS. The screws are delivered with the fixture. Hold the handles on both sides of the PCS and pull the PCS to the fixture. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 80 Step 7 Install the new PCS in the ESS cabinet. Take out a new PCS and install the lifting handles. Lift the PCS onto the fixture to avoid falling. Remove two lifting handles first. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 81 Remove the screws from the fixture and keep them properly. After removing the fixture and restoring it to the DCDC position, place the fixture back to the toolbox and secure it. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 82 Obtain a new stop valve from the side panel of the ESS. When installing the stop valve, connect the new male connector of the stop valve to the new PCS, and connect the old female connector to the new male connector. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 83 Step 10 Perform operations based on the installation status. ● If coolant has been drained from the cabinet before the faulty component is removed, add coolant to the cabinet. For details, see D.3 Adding Coolant to LTMS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 84 If coolant has not been drained from the cabinet before the faulty component is removed, add an appropriate amount of coolant. For details, see Adding Coolant to the LTMS. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 85: Replacing The Rcm
S-140A1 (0.5CP, with a disconnector) as an example. The actual product prevails. ● The figures in this chapter are for reference only. The appearance of each component (such as a power meter) inside the RCM may vary. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 86: Replacing An Entire Rcm
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Remove the maintenance compartment cover and cable protective cover. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 87 (including 10# socket). Step 3 Remove the faulty RCM. Figure 6-3 Removing the faulty RCM Step 4 Remove the BCU from the faulty RCM. For details, see 6.5 Replacing a BCU. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 88 Install the cables to a torque of 5 N·m under the RCM cable protective cover using an insulated torque socket wrench (including 10# socket). Step 8 Install the cable protective cover and maintenance compartment cover. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 89: Replacing A Power Meter
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Remove the maintenance compartment cover and the upper left cover inside. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 90 Step 3 After taking the faulty power meter out of the RCM, disconnect the cables from the faulty power meter and check whether the labels are intact. If not, confirm cables and prepare new labels. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 91: Replacing A Power Meter Fuse
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Remove the maintenance compartment cover and the upper left cover inside. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 92 Step 3 Install a new fuse and close the fuse cover of the power meter. Step 4 Install the upper left cover inside and cover of the maintenance compartment. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 93: Replacing An Spd
2.1 Powering Off the ESS. D ANGER Do not replace the AC SPD during a thunderstorm. Procedure Step 1 Remove the maintenance compartment cover and the upper left cover inside. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 94 Figure 6-13 Removing the faulty surge protection module Step 3 Install a new surge protection module. Step 4 Install the upper left cover inside and cover of the maintenance compartment. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 95: Replacing A Bcu
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Remove the maintenance compartment cover. Figure 6-15 Removing the maintenance compartment cover Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 96 Step 4 Connect the cables to a new BCU based on the cable labels. Step 5 Install the new BCU. Figure 6-17 Installing the new BCU Step 6 Install the RCM maintenance compartment cover. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 97: Replacing An Rcm Fan
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Remove the maintenance compartment cover and cable protective cover. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 98 Remove the cables under the RCM cable protective cover using an insulated torque socket wrench (including 10# socket). Step 3 Take the RCM out of the cabinet. Figure 6-20 Taking the RCM out of the cabinet Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 99 Step 6 Connect the cables to a new RCM fan according to the cable labels. Step 7 Install the new RCM fan. Figure 6-22 Installing the new RCM fan Step 8 Install the RCM. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 100 Step 9 Connect the RCM cables based on the labels. Step 10 Install the cable protective cover and maintenance compartment cover. Figure 6-24 Installing the cable protective cover and maintenance compartment cover ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 101: Replacing An Ltms
● When moving and transporting the LTMS, keep it upright. Do not place it horizontally or upside down. If the package of the LTMS is damaged or the tilt indicator on the package has changed color, contact the Company's service engineers. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 102 (delivered with spare parts), Phillips insulated torque screwdrivers (M3, M4, and M6), flat-head insulated torque screwdriver, coolant filling/drainage machine (purchased on the configurator), cable cutter, coolant, and cable ties Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 103 Step 2 Remove the cables between the LTMS and the RCM. Cut off the cable ties and remove the communications cable. Figure 7-2 Removing the communications cable Remove the RCM maintenance compartment cover and cables. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 104 Step 3 Remove the cable slot and baffle plate. Remove the positioning sheet metal block for the pipe extending beyond the door. Remove the cable slot. Remove the cable baffle plate. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 105 After removing the liquid cooling pipes from the pipe clamps, rotate the pipe clamps counterclockwise until they are removed from the cabinet, and record the installation positions of the pipe clamps. Figure 7-5 Disconnecting the LTMS from the pipes Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 106 Slowly raise the tynes to lift the faulty LTMS and slowly reverse the forklift to move the LTMS to a safe place. Figure 7-6 Removing the faulty LTMS Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 107 Remove the lifting lugs and install the plugs for the hoisting positions. Reinstall the protective cover for the main control module. Figure 7-7 Installing the new LTMS Step 7 Connect cables, pipe clamps, and liquid cooling pipes based on labels. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 108: Replacing An Ltms Dehumidifying Fan
Step 2 Disconnect the quick connector of the dehumidifying fan and check whether the labels are intact. If not, confirm cables and prepare new labels. Step 3 Remove the faulty dehumidifying fan. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 109: Replacing An Ltms Outdoor Fan
If not, confirm cables and prepare new labels. For details about how to remove the cable harness, see 7.9 Replacing an LTMS NTC Cable Harness. Step 3 Remove the coolant pipe from the outdoor fan. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 110 Step 5 Install a new outdoor fan and tighten the M6 screws to 3 N·m. NO TICE When installing the new outdoor fan, place the end of the cable in the lower left corner and reserve sufficient slack in the cable. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 111: Replacing An Ltms Main Control Module
Step 1 Remove the protective cover from the LTMS main control module. Figure 7-11 Removing the protective cover from the main control module Step 2 Remove the fixing bracket from the LTMS main control module. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 112 Step 6 Connect the cables based on the labels. Step 7 Install the fixing bracket and protective cover for the LTMS main control module and tighten the M6 Phillips screws to 5 N·m. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 113: Replacing An Ltms Main Control Backplane
Step 3 Disconnect the cables from the faulty main control backplane and check whether the labels are intact. If not, confirm cables and prepare new labels. Step 4 Remove the faulty main control backplane. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 114: Replacing A Drive And Auxiliary Power Module Of The Ltms
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Remove the protective cover from the LTMS main control module. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 115 Figure 7-17 Removing the fixing bracket from the main control module Step 3 Turn the locking switch upward to unlock the faulty drive and auxiliary power module, and remove the module. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 116: Replacing An Ltms Outdoor Heat Exchanger
7.9 Replacing an LTMS NTC Cable Harness. Step 3 Close the valve at the bottom of the heat exchanger. Step 4 Remove the liquid cooling pipe of the heat exchanger from the pipe clamps. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 117 Remove the screws from the outdoor heat exchanger using the Phillips insulated torque screwdriver. Disconnect the liquid cooling pipe of the heat exchanger from the LTMS. Remove the faulty outdoor heat exchanger and its pipes. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 118 7.9 Replacing an LTMS NTC Cable Harness. Step 8 Add coolant. For details, see D How Do I Use the Coolant Filling/Drainage Machine to Add or Drain Coolant? ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 119: Replacing An Ltms Filter Board
Figure 7-21 Removing the front baffle plate of the filter board Step 2 Disconnect the cables and check whether the labels are intact. If not, confirm cables and prepare new labels. Step 3 Remove the filter board fasteners. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 120 Step 8 Install the filter board and front baffle plate and tighten the M3 Phillips screws to 0.3 N·m. Step 9 Install the filter board in the LTMS and tighten the M5 Phillips screws to 3 N·m. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 121: Replacing An Ltms Ntc Cable Harness
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Cut off cable ties. Step 2 Remove the cylindrical cable routing tool. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 122 NO TICE When applying glass cement, ensure that there is no gap between the cables and the cable holes. Figure 7-25 Applying glass cement Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 123 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 7 Replacing an LTMS Figure 7-26 Filling cable holes with glass cement Step 8 Reinstall the cylindrical cable routing tool in the cabinet. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 124: Replacing Ltms Pipes
● Handle the liquid cooling pipe stop valve with caution to prevent foreign matter from falling into the stop valve, which will affect the sealing performance of the stop valve. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 125 (you only need to press the stop valve and do not need to remove it) before removing and inserting it. Figure 8-1 Before the removal and insertion Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 126: Replacing A Battery Pack Coolant Return Pipe
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 8 Replacing LTMS Pipes 8.1 Replacing a Battery Pack Coolant Return Pipe Prerequisites Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 127 (male and female) (4) Rubber pipe (5) Clamp (6) Plastic quick connector of the two- way stop valve for the branch pipe (female) Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 128 Step 4 Install the coolant return pipe on the battery pack. Connect the conduit to the automatic exhaust valve by referring to step 2 in 8.5 Replacing an Automatic Exhaust Valve. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 129: Follow-Up Procedure
If coolant has not been drained from the cabinet before the faulty component is removed, add an appropriate amount of coolant. For details, see Adding Coolant to the LTMS. ----End Follow-up Procedure Check the running status of the liquid cooling pipe. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 130: Replacing A Battery Pack Coolant Supply Pipe
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 8 Replacing LTMS Pipes 8.2 Replacing a Battery Pack Coolant Supply Pipe Prerequisites Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 131 (female) ● Tools: non-absorbent insulated gloves, mask, coolant filling/drainage machine (purchased on the configurator), and coolant ● You have determined the leakage point on a pipe. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 132 LTMS. Dispose of the pipe clamps. Step 5 Install the coolant supply pipe on the battery pack. Install the new pipe by referring to the pipe position shown in the figure in step 2. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 133 If coolant has not been drained from the cabinet before the faulty component is removed, add an appropriate amount of coolant. For details, see Adding Coolant to the LTMS. ----End Follow-up Procedure Check the running status of the liquid cooling pipe. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 134: Replacing A Pcs Pipe
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 8 Replacing LTMS Pipes 8.3 Replacing a PCS Pipe Prerequisites Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 135 (male and female) (7) Rubber pipe (8) Clamp (9) Plastic quick connector of the two- way stop valve for the branch pipe (female) Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 136 Figure 8-4 Disconnecting the pipe Step 3 Rotate the pipe clamps counterclockwise until they are removed from the cabinet and LTMS. Dispose of the pipe clamps. Step 4 Install the PCS pipe. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 137: Replacing Male Connectors Of The Liquid Cooling Pipe Stop Valves
For details, see Adding Coolant to the LTMS. ----End Follow-up Procedure Check the running status of the liquid cooling pipe. 8.4 Replacing Male Connectors of the Liquid Cooling Pipe Stop Valves Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 138: Removing Male Connectors Of The Liquid Cooling Pipes
Step 2 After disconnecting the female connectors from the male connectors of the liquid cooling pipes, remove the male connectors of the stop valves on the LTMS and PACK/PCS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 139 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 8 Replacing LTMS Pipes Figure 8-5 Removing the male connectors of the stop valves ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 140: Installing Male Connectors Of The Liquid Cooling Pipes
Step 1 Drain all the coolant from the cabinet. For details, see D.1 Draining Coolant from LTMS. Step 2 Install the male connectors of the stop valves on the LTMS and PACK/PCS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 141 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 8 Replacing LTMS Pipes Figure 8-6 Installing the male connectors of the stop valves ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 142: Replacing An Automatic Exhaust Valve
(purchased on the configurator), and coolant ● You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 143 Remove the automatic exhaust valve. Figure 8-8 Removing the automatic exhaust valve Step 3 Install the automatic exhaust valve. Connect the new exhaust valve to the original conduit by referring to step 2. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 144 – Use two thumbs to press the spring until you hear a click. Step 4 Add coolant. For details, see D.3 Adding Coolant to the LTMS. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 145: Replacing A Fire Suppression System
● Battery capacity > 2.3 Ah (10 hour-rate) ● Voltage: 12 V ● Dimensions (L x W x H): 70 mm x 48 mm x 98 mm (height: 104 mm with battery terminals included) Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 146 Step 1 Record and remove the PCS AC power cables. Screw model: M12; tool: insulated torque socket wrench (18# socket, socket depth ≥ 50 mm, with an extension rod). Step 2 Remove the RCM cover. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 147 Step 3 Remove cables from the RCM. Remove the DC power cables (BAT+ and BAT-) between the RCM and the battery packs. Remove the RCM PE cable. Remove the RCM wiring terminals (TRSD). Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 148 Remove the pipe: Use a wrench to press the spring ring connector to the bottom and pull out the pipe with hands. Remove the cable connected to the lead-acid battery box. Remove the PACK extinguishant port and pipe. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 149 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 9 Replacing a Fire Suppression System Figure 9-4 Removing the PACK extinguishant port and pipe Step 5 Remove the cable cover. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 150 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 9 Replacing a Fire Suppression System Figure 9-5 Removing the cable cover Step 6 Remove the multi-way valve, and remove the pipes and cables. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 151 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 9 Replacing a Fire Suppression System Figure 9-6 Removing the pipes and cables Step 7 Remove the TRSD. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 152 ----End Installing a New TRSD Step 1 Install a new TRSD and tighten the M8 screws to 13 N·m. Step 2 Install the new multi-way valve, pipes, and cables. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 153 Due to the limited space under the cable management bar, route the cables in the direction shown by the arrow in 1 in Figure 9-8. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 154 Step 3 Reinstall the cable cover and connect the pipe between the multi-way valve and PACK extinguishant port. NO TICE When installing the cable cover for the TRSD, pull the pipe out of the reserved hole on the cover. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 155 Step 4 Reinstall the cables on the RCM. Install the RCM PE cable. Install the RCM wiring terminals (TRSD). Secure the DC power cables (BAT+ and BAT-) between the RCM and the battery packs. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 156 (18# socket, socket depth ≥ 50 mm, with an extension rod); torque: 40 N·m. ----End Follow-up Procedure Check the system running status and ensure that the TRSD alarm is cleared. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 157: Replacing A Smoke Detector
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Hold the faulty smoke detector by hand, and rotate it counterclockwise to remove it from the base. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 158 Step 4 Install the base and tighten the M4 Phillips screws to 1.6 N·m. Step 5 Connect the cables based on the labels. Step 6 Hold the new smoke detector by hand, and rotate it clockwise until it snaps into place. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 159: Replacing A Heat Detector
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Hold the faulty heat detector by hand, and rotate it counterclockwise to remove it from the base. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 160 Step 4 Install the base and tighten the M4 Phillips screws to 1.6 N·m. Step 5 Connect the cables based on the labels. Step 6 Hold the new heat detector by hand, and rotate it clockwise until it snaps into place. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 161: Optional) Replacing A Co Sensor
You have shut down the ESS. For details about how to shut down the ESS, see 2.1 Powering Off the ESS. Procedure Step 1 Record the DIP switch settings. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 162 Standard CO sensor: M3 Phillips screw, torque: 0.6 N·m ● Explosion-proof CO sensor: M4 Phillips screw, torque: 1.6 N·m Step 6 Connect the cables based on the labels. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 163: Replacing A Fire Alarm Horn/Strobe
Step 2 Remove the liquid cooling pipe shown in the figure from the four pipe clamps, gently pull the pipe outward to leave sufficient space, and remove the rear cover of the indicator board. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 164 Step 4 Install a new fire alarm horn/strobe and tighten the M3 Phillips screws to 0.6 N·m. Step 5 Install the rear cover of the indicator board and tighten the M3 Phillips screws to 0.6 N·m. Step 6 Reinstall the cables. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 165: Replacing An Indicator Board
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 10 Replacing an Indicator Board Replacing an Indicator Board Prerequisites Figure 10-1 Position of the indicator board Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 166 Figure 10-2 Removing the rear cover of the indicator board Step 3 Remove the light pipe and light pipe support from the indicator board. Figure 10-3 Removing the light pipe and light pipe support Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 167 Step 5 Remove the front panel of the indicator board. (Optional. If the front panel is faulty, perform steps Step 5 Step 7 to replace the front panel.) Figure 10-5 Removing the front panel of the indicator board Step 6 (Optional) Apply sealant evenly. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 168 Step 9 Install the new control board and light pipe and tighten the M3 Phillips screws to 0.6 N·m. Step 10 Install the rear cover of the indicator board and tighten the M3 Phillips screws to 0.6 N·m. Step 11 Reinstall the cables. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 169: Replacing A Travel Switch
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 11 Replacing a Travel Switch Replacing a Travel Switch Prerequisites Figure 11-1 Position of the travel switch Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 170 Step 2 Remove the faulty travel switch. Step 3 Install a new travel switch and tighten the M4 Phillips screws to 1.6 N·m. Step 4 Connect the cables based on the labels. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 171: Replacing An Emergency Stop Switch
Prerequisites Figure 12-1 Position of the emergency stop switch ● Tools: insulated torque socket wrench (M4, 7# socket), Phillips insulated torque screwdriver (M6), and flat-head insulated torque screwdriver (M3) Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 172 Step 9 Reinstall the cables to the emergency stop switch and bind them. Ensure that the silk screens on the cables are consistent with those on the emergency stop switch. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 173 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 12 Replacing an Emergency Stop Switch Figure 12-3 Installing the emergency stop switch ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 174: Optional) Replacing An Exhaust Fan
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 13 (Optional) Replacing an Exhaust Fan (Optional) Replacing an Exhaust Fan Prerequisites Figure 13-1 Position of the exhaust fan Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 175 Figure 13-2 Removing the exhaust fan Step 3 Install a new exhaust fan and tighten the M4 Phillips screws to 1.6 N·m. Step 4 Connect the cables based on the labels. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 176: Replacing A Water Sensor
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 14 Replacing a Water Sensor Replacing a Water Sensor Prerequisites Figure 14-1 Positions of the water sensors Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 177 Step 1 Remove the cable baffle plate. Figure 14-2 Removing the cable baffle plate Step 2 Remove the faulty water sensor. Remove the faulty water sensor. Turn over the faulty water sensor. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 178 Step 3 Connect the cables to the new water sensor and tighten the M3 Phillips screws to 0.6 N·m. Step 4 Install the water sensor. Step 5 Install the cable baffle plate and tighten the M8 nuts to 13 N·m. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 179: Replacing A Door Status Sensor
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 15 Replacing a Door Status Sensor Replacing a Door Status Sensor Prerequisites Figure 15-1 Position of the door status sensor Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 180 Step 5 Install a new door status sensor and tighten the M3 Phillips screws to 0.6 N·m. Step 6 Connect the cables based on the labels. Step 7 Install the enclosure of the new door status sensor. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 181: Replacing A T/H Sensor
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 16 Replacing a T/H Sensor Replacing a T/H Sensor Prerequisites Figure 16-1 Positions of the T/H sensors Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 182 Step 4 Set the DIP switches for a new T/H sensor based on the recorded information. Step 5 Install the new T/H sensor. Step 6 Connect the cables based on the labels. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 183: Optional) Replacing A Smartlogger
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual 17 (Optional) Replacing a SmartLogger (Optional) Replacing a SmartLogger Prerequisites Figure 17-1 Position of the SmartLogger Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 184 Figure 17-2 Removing the SmartLogger protective cover Step 2 Remove the faulty SmartLogger. Figure 17-3 Removing the faulty SmartLogger Step 3 Remove the conversion brackets from the new SmartLogger. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 185 Step 4 Install the new SmartLogger. Step 5 Install the SmartLogger protective cover and tighten the M4 Phillips screws to 1.6 N·m. Step 6 Connect the cables based on the labels. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 186: Emergency Handling
If any part of the batteries is submerged in water, do not touch the batteries to avoid electric shock. ● Do not use batteries that have been soaked in water. Contact a battery recycling company for disposal. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 187 When a fire occurs, evacuate from the building or equipment area, press the fire alarm bell, and immediately call the fire emergency service. Notify the professional firefighters and provide them with relevant Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 188 Do not open the doors of the ESS before it is deemed safe by professionals. Follow local fire fighting regulations. When a fire occurs, prevent the fire from spreading to nearby ESSs. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 189: A How Do I Recycle Used Batteries
NO TE You need to cover the related transportation expenses. Step 4 Recycling agencies handle recycling. The recycled lithium batteries are at the disposal of the recycling agencies. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 190: B How Do I Repair Paint Damage
The equipment appearance shall be intact. If paint has flaked off, repair paint damage immediately. NO TE Check the paint damage on the equipment and prepare appropriate tools and materials. The number of materials depends on site requirements. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 191 2. If a dent is greater than 100 mm area or greater than 3 mm in depth, ask the local supplier for an appropriate repainting solution. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 192 Step 4 Apply paint evenly to the damaged area based on the damage degree of the paint using an aerosol spray, brush, or paint spray gun until all damage traces are invisible. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 193 Table B-2 Paint requirements Item Requirement Primer thickness 60 μm Intermediate coat thickness 120 μm Top coat thickness 60 μm Primer type Epoxy zinc-rich paint Intermediate coat type Zinc-rich paint Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 194 NO TE The following is a paint model list provided by Huawei. The list may be updated from time to time and is for reference only. The cost of paint and technical services is subject to the local pricing standards.
Page 195: C How Can I Export Device Logs
Smart PCSs are disconnected from the grid. Otherwise, power control may be abnormal or the log export may fail. Step 3 Observe the progress bar and wait until the log export is complete. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 196 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual C How Can I Export Device Logs? Step 4 After the export is successful, click Log archiving to save the logs. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 197: D How Do I Use The Coolant Filling/Drainage Machine To Add Or Drain Coolant?190
D.1 Draining faulty. LTMS. Coolant from the LTMS The outdoor Replace the D.1 Draining heat exchanger faulty Coolant from of the LTMS is outdoor heat the LTMS faulty. exchanger. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 198 Heating in an empty container may cause an explosion. ● Take protective measures because coolant can irritate your eyes, skin, and throat. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 199 Continuous output current ≥ 10 A ● In the case of coolant filling or drainage for a single ESS, the battery capacity must be less than or equal to 76 Wh. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 200: Draining Coolant From The Ltms
Tools: coolant bucket, non-absorbent insulated gloves, and mask ● You have prepared the coolant filling/drainage machine (including the machine power cable). You may purchase the machine from Huawei. ● You have prepared a clean coolant bucket (≥ 20 L) by yourself.
Page 201 Insert the outlet pipe into the bottom of the coolant bucket. Connect the inlet pipe to the drain valve port at the bottom of the LTMS heat exchanger. Open the ball valve at the inlet pipe. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 202 Open the drain valve at the bottom of the heat exchanger to drain coolant. If no coolant is drained from the drain pipe for 30s, the drainage is complete. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 203 Remove the coolant filling and drain pipes connected to the machine. Remove the outlet pipe from the coolant bucket. Install the pressure relief cover of the tank. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 204: Draining Coolant From The Pack/Pcs
Tools: coolant bucket, non-absorbent insulated gloves, and mask ● You have prepared the coolant filling/drainage machine (including the machine power cable). You may purchase the machine from Huawei. ● You have prepared a clean coolant bucket (≥ 20 L) by yourself.
Page 205 Figure D-7 Opening the pressure relief cover of the tank Step 6 Install the machine. Set the machine to the Auto mode, and rotate the Pump Speed knob counterclockwise to the minimum level. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 206 Figure D-8 Draining coolant from the battery pack or PCS Step 7 Drain coolant from the battery pack or PCS. Keep the machine in the Manual mode and rotate the Pump Speed knob clockwise to the maximum level. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 207 Turn off the power switch that supplies power to the machine and remove the power cable. Remove the outlet pipe from the coolant bucket. Remove the coolant filling and drain pipes connected to the machine. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 208 D How Do I Use the Coolant Filling/Drainage Maintenance Manual Machine to Add or Drain Coolant? Figure D-9 Removing the machine Step 10 Install the pressure relief cover of the tank. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 209: Adding Coolant To The Ltms
Tools: coolant bucket, non-absorbent insulated gloves, and mask ● You have prepared the coolant filling/drainage machine (including the machine power cable). You may purchase the machine from Huawei. ● You have prepared an appropriate amount of coolant based on site requirements (all coolant in the ESS ≤...
Page 210 Insert the inlet pipe into the coolant bucket to ensure that coolant can be extracted. Ensure that the ball valve at the outlet pipe is closed. Connect the other end of the communications cable to the LTMS signal port. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 211 Step 9 Check whether coolant is being filled properly. The coolant is filled automatically. A complete coolant filling process for a single ESS takes about 45 minutes. Step 10 After the filling is complete, check that Coolant Replacement Status is Completed. Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 212 Remove the communications cable from the machine and LTMS signal port. Remove the coolant filling and drain pipes connected to the machine. Remove the outlet pipe from the coolant bucket. Figure D-13 Removing the machine Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 213 Machine to Add or Drain Coolant? Step 13 Drain residual coolant from the inlet and outlet pipes and ensure that no coolant remains. Clean the inlet and outlet pipes and dry the surface. ----End Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 214: Contact Information
To ensure faster and better services, we kindly request your assistance in providing the following information: ● Model ● Serial number (SN) ● Software version ● Alarm ID or name ● Brief description of the fault symptom Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 215 LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual E Contact Information NO TE EU Representative Information: Huawei Technologies Hungary Kft. Add.: HU-1133 Budapest, Váci út 116-118., 1. Building, 6. floor. Email: hungary.reception@huawei.com Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 216: F Digital Power Customer Service
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual F Digital Power Customer Service Digital Power Customer Service https://digitalpower.huawei.com/robotchat/ Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 217: Acronyms And Abbreviations
LUNA2000-(215-2S10, 215-2S12) Smart String ESS Maintenance Manual G Acronyms and Abbreviations Acronyms and Abbreviations application battery control unit battery monitoring unit carbon monoxide emergency power-off battery rack energy storage system Flexible Printed Circuit Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 218 MBUS monitoring bus negative temperature coefficient PACK battery pack Power Converter System positive temperature coefficient RCCB residual current circuit breaker Rack Control Module state of charge uninterruptible power system Issue 02 (2024-10-12) Copyright © Huawei Digital Power Technologies Co., Ltd.

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