Hoymiles HMT-1800-6T 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 in the package and should be purchased separately.
Note:
1. Install the microinverter and all DC connections under the PV module to avoid direct sunlight, rain exposure, snow buildup, UV, etc.
2. Leave at least 2 cm of space around the microinverter enclosure to ensure ventilation and heat dissipation.
3. Mounting torque of the 8 mm screw should be 9 N·m. Please do not over-torque.
The order of Step 1 and Step 2 can be reversed according to your planned needs.
Item Description
A 3P-AC Trunk End Cap
B 3P-AC Trunk Connector
C 3P-AC Trunk Port Disconnect Tool
D 3P-AC Trunk Connector Unlock Tool
E 3P-AC Trunk Port Cap
F
G
H
DC Extension Cable,1m
3P-AC Trunk Cable, 12/10 AWG Cable
- Use the 3P-AC Trunk Connector Unlock Tool
to unlock the connector upper cover.
1 ) Disassemble the AC Trunk Connector and remove the cable.
2 ) Install the 3P-AC Trunk End Cap at one side of 3P-AC Trunk Cable (The end of 3P-AC Trunk Cable)
3 ) Install AC end cable on the other side of 3P-AC Trunk Cable (connected to the distribution box)
- Loosen the three screws with screwdriver.
Untighten the cap and remove the cable.
*Note:
HMT-2250/1800-6T Quick Installation Guide
A ) Mark the position of each microinverter on the rail, according to the PV module layout.
Step 2. Plan and Build the 3P-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 the panel.
- Insert the 3P-AC Trunk End Cap and screw
the cap back to port, then tighten the cap.
- Unlock the port upper cover, loosen the screws
with screwdriver and remove the extra cable.
(Skip this step if there is no cable at this side.)
- Plug the upper cover back to the Trunk
connector.
5.5±0.5N·m
Mounting Torque : 9 N·m
click
B C D E F GHA
M8*25 screws (Prepared by the installer)
3P-AC Trunk Cable is used to connect the microinverter to distribution box.
A ) Determine how many microinverters you plan to install on each AC branch and prepare AC Trunk Connectors
accordingly.
B ) Take out segments of AC Trunk Cable as you need to make AC branch.

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. Tightening torque of the cap: 5.5±0.5 N·m. Please do not over-torque.
2. Torque of locking screw: 0.4±0.1 N·m.
3. Do not damage the sealing ring in the 3P-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).
Note:
1. Make sure that the 3P-AC Trunk Connectors are kept away from any water-channeling surface.
2. In case you need to remove the microinverter AC cable from 3P-AC Trunk Connector, please use
the 3P-AC Trunk Port Disconnect Tool and insert the tool into the side of AC Sub Connector to
complete the removal.
Product information is subject to change without notice. (Please download reference manuals at www.hoymiles.com).
C ) Repeat the above steps to make all the 3P-AC Trunk Cables you need, then lay out 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.
- Prepare a segment of AC cable with suitable
lengthto connect to the distribution box, with
stripping requirements fulfilled.
- Insert the cable into the cap in a way that
theL1, L2, L3, PE and N lines are in correspond-
ing slots.
- Tighten the screws and 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 in about two
minutes.
Step 7. Set up Monitoring System
Please refer to the DTU User Manual or DTU Quick Installation
Guide, and Quick Installation Guide for S-miles Cloud to install
the DTU and set up monitoring system.
D ) Attach the 3P-AC Trunk Cable to the
mounting rail and fix the cable with tie wraps.
A ) Push the AC Sub Connector from
microinverter to the 3P-AC Trunk Connector
until it clicks.
C ) Please plug the 3P-AC Trunk Port Cap in
any vacant AC Trunk Port to make it water and
dust-proof.
5.5±0.5N·m
0.4±0.1N·m
click
click
click
8±1mm
70±5mm
138264700571
138264700571
N
PE
L3
L2
L1
Tosheet ______
Tosheet ______
Tosheet ______
Tosheet ______
Sheet_____of_____
Hoymiles Microinverter Installation Map
PleaseMake N for North
1
A
B
C
D
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
COLUMN
ROW
AP040228 V1.3
CustomerInformation: DTUSerial Number
Azimuth:
Tilt:
Paneltype: