Schematic Diagram Of Main Circuit; Maintenance; Clean Fan; Dc Switch Check - Goodwe HT Series User Manual

7.2 Schematic Diagram of Main Circuit

The main circuit of GW100K-HT / GW110K-HT is shown in the following diagram:
PV1+
DC EMI MPPT1
PV1-
PV2+
DC EMI MPPT2
PV2-
PV3+
DC EMI MPPT3
PV3-
DC Switch 1
PV4+
DC EMI MPPT4
PV4-
PV5+
DC EMI MPPT5
PV5-
PV6+
DC EMI MPPT6
PV6-
DC Switch 2
PV7+
DC EMI MPPT7
PV7-
PV8+
DC EMI MPPT8
PV8-
PV9+
DC EMI MPPT9
PV9-
DC Switch 3
PV10+
DC EMI MPPT10
PV10-
DC Switch 4
DC SPD
The main circuit of GW120K-HT is shown in the following diagram:
PV1+
DC EMI MPPT1
PV1-
PV2+
DC EMI MPPT2
PV2-
PV3+
DC EMI MPPT3
PV3-
DC Switch
1
PV4+
DC EMI MPPT4
PV4-
PV5+
DC EMI MPPT5
PV5-
PV6+
DC EMI MPPT6
PV6-
DC Switch
2
PV7+
DC EMI MPPT7
PV7-
PV8+
DC EMI MPPT8
PV8-
PV9+
DC EMI MPPT9
PV9-
DC Switch 3
PV10+
DC EMI MPPT10
PV10-
PV11+
DC EMI MPPT11
PV11-
PV12+
DC EMI MPPT12
PV12-
DC Switch 4
DC SPD
The main circuit of GW136K-HTH is shown in the following diagram:
PV1+
DC EMI MPPT1
PV1-
PV2+
DC EMI MPPT2
PV2-
PV3+
DC EMI MPPT3
PV3-
DC Switch 1
PV4+
DC EMI MPPT4
PV4-
PV5+
DC EMI MPPT5
PV5-
PV6+
DC EMI MPPT6
PV6-
DC Switch 2
PV7+
DC EMI MPPT7
PV7-
PV8+
DC EMI MPPT8
PV8-
PV9+
DC EMI MPPT9
PV9-
DC Switch3
PV10+
DC EMI MPPT10
PV10-
PV11+
DC EMI MPPT11
PV11-
PV12+
DC EMI MPPT12
PV12-
DC Switch 4
DC SPD
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L1
L2
Output L3
DC/AC LC
Inverter Filter EMI N
Filter
circuit
PE
AC SPD
L1
L2
Output
L3
DC/AC LC
Inverter Filter N
EMI
Filter
circuit
PE
AC SPD
L1
L2
Output L3
DC/AC LC
Inverter Filter
EMI
Filter
circuit
PE
AC SPD
8 Product Maintenance
Regular maintenance of the inverter will ensure its service life and best efficiency.
Note: Before carrying out any maintenance, turn off the AC circuit breaker, disconnect the DC
circuit breaker, and wait 5 minutes until the residual voltage is released.

8.1 Clean Fan

The external fan of the HT series inverter needs to be cleaned with a vacuum cleaner every
year. Remove the fan and give it a thorough clean.
1. Turn off the AC circuit breaker first, and then turn off the DC switch;
2. Wait 5 minutes until the residual voltage is released and the fan stops running;
3. Remove the fan net;
Use a screwdriver to loosen the fan bracket
Carefully disassemble the fan net and fan (because the internal circuit of the fan is still
connected, do not pull out a single fan) as shown in the diagram below;
4. Use a soft brush, cloth or compressed air for cleaning; tighten the screws.
Fan pullout hole

8.2 DC Switch Check

In normal use, the DC switch requires no maintenance.
Although not strictly necessary, we still recommend you to:
• check the DC switch regularly:
• turn the DC switch on and off 10 times a year.
Operating the switch regularly can clean up the device and extend its service life.
Note: Turn off the AC breaker first, and then turn off the DC switch.
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