Hoymiles HMS-2000/1800-4T User manual

Region: Global AP040390 REV1.1 © 2020 Hoymiles Power Electronics Inc. All rights reserved. 01
2. Installation Steps
1. Accessories
Step 1. Plan and install the Microinverter
All accessories above are not included by the package, will need to be purchased separately. Please contact our sales representative for
the price (M8 screws will need to be prepared by installer-self).
Note:
1. Install the microinverter and all DC connections under the PV module to avoiding direct sunlight, rain exposure, snow layup, UV etc.
2. Allow a minimum of 2 cm of space around the microinverter enclosure to ensure ventilation and heat dissipation.
3. Mounting torque of the 8 mm screws: 9 N·m, do not over torque.
The order of Step 1 and Step 2 can be reversed according to your planned needs.
Item Description
A AC Trunk Cable, 12/10 AWG Cable
B M8*25 screws
C AC Trunk Connector
D AC Trunk Port Cap
E AC Trunk Port Disconnect Tool
F AC Trunk End Cap
G AC Trunk Connector Unlock Tool
- Uses the AC Trunk Connector Unlock Tool to
unlock the connector upper cover;
1 ) Disassemble the AC Trunk Connector and remove the cable
2 ) Install the AC Trunk End Cap at one side of AC Trunk Cable (The end of AC Trunk Cable)
3 ) Install AC end cable on the other side of AC Trunk Cable (connected to the distribution box)
- Loose the three screws with the screwdriver.
Untighten the cap, and remove the cable;
*Note:
HMS-2000/1800-4T Quick Installation Guide
I ABC D HE F G
FA B C E GD
A ) Mark the position of each microinverter on the rail, according to the PV module layout.
Step 2. Plan and build the AC Bus Cable
AC Trunk Cable is used to connect the microinverter to distribution box.
A ) Select the appropriate AC Trunk Cable according to the spacing between microinverters. The connector spacing of
the AC Trunk Cable should be close to spacing between microinverters to ensure that they can matched. (Hoymiles
provides AC Trunk Cable with different AC Trunk Connector spacing)
B ) Determine the number of microinverters in each AC branch, then plan the AC Trunk Cable with the corresponding
number of AC Trunk Connectors.
C ) Take the required length from the whole box AC Trunk Cable and make each AC Trunk Cable.
B ) Fix the screw on the rail.
C ) Hang the microinverter on the
screws, and tighten the screws. The silver
cover side of the microinverter should be
facing to the panel.
- Insert the AC Trunk End cap and screw the
cap back to port, then tighten the cap.
- Unlock the port upper cover, loose the screws
with the screwdriver and remove the extra cable.
(If there is no cable at this side, skip the cable
removal)
- Plug the upper cover back to the Trunk
connector.
4.0±0.5N·m
Mounting Torque : 9 N·m
click

Step 5. Connect PV Modules
Step 6. Energize the System
A ) Mount the PV modules above the
microinverter.
B ) Connect the PV modules’ DC cables to the
DC input side of the microinverter.
Note:
1. Tighten torque of the cap: 4.0±0.5N·m, do not over torque.
2. Torque of locking screw：0.4±0.1N·m.
3. Take care not to damage the sealing ring in the AC Trunk Connector during disassembly and assembly.
Step 4. Create an Installation Map
A ) Peel the removable serial number label from
each microinverter.
B ) Affix the serial number label to the respective
location on the installation map (Please refer
to the appendix for the installation map).
Note:
1. Ensure that the AC Trunk Connectors are secured away from any water-channeling surface.
2. Under the circumstance that need to remove the inverter AC cable from AC Trunk Connec-
tor, please use the AC Trunk Port Disconnect Tool and insert the tool into the side of AC Sub
Connector to remove.
Product information is subject to change without notice. (Please download reference manuals at www.hoymiles.com).
138264700571
138264700571
D ) Use the above method to make all the AC Trunk Cables you need, then layout the cable on the rail in the suitable
position so that the microinverters can be connected to the Trunk connectors.
Step 3. Complete the AC Connection
Note: Please use DC extension cables when modules are installed in single row.
- Prepare a suitable length of AC cable to
connect to the distribution box, with stripping
requirements.
- Insert cable into the cap. Match the L, N and PE
into the corresponding slot.
- Tighten the screws, and then tighten the cap
back to the port.
- Plug the upper cover back to the Trunk
connector.
Region: Global AP040390 REV1.1 © 2020 Hoymiles Power Electronics Inc. All rights reserved. 02
B ) Connect the AC end cable to the distribution box, and wire it to the local grid network.
A) Turn on the AC breaker for the branch circuit.
B) Turn on the main AC breaker for the house. Your
system will start to generate power after about
two-minute wait time.
Step 7. Monitoring System Set Up
Refer to the DTU User Manual or DTU Quick Install Guide, and
Quick Installation Guide for S-miles Cloud to install the DTU and
set up monitoring system.
E ) Attach the AC Trunk Cable with the mount-
ing rail and fix the cable by tie wraps.
A ) Push the AC Sub Connector from microin-
verter to the AC Trunk Connector until you
hear “click”.
C ) If there is any vacant AC Trunk Port, please
plug the AC Trunk Port Cap on the vacant port
to ensure for the water and dust prove.
L
PE
4.0±0.5N·m
0.4±0.1N·m
N
click
click
click
8±1mm
40±5mm