Solar Pump - LG THERMA V HM141MR Installation Manual

Solar pump

Solar pump can be required to energize water flow when solar thermal system is installed.
How to install solar pump
Follow below procedures step 1 ~ step 4.
Step 1. Check if the power of the unit is turned off.
Step 2. Disassemble front panels and distinguish control box(Indoor) of the unit.
Step 3. Check if the harness(Black) is inserted fully to the indoor unit PCB (CN_W_PUMP_B).
Step 4. Connect the external pump to terminal block 1(4/5).
h It is possible to un-use solar pump depending on installation environment.
- For 3 Series
- For 4 Series
h The terminal block connection number may differ depending on the model. Refer to the
"Wiring Diagram" in the SVC Manual.
CAUTION
!
When connecting a pump of 1.05A or higher, its output must be used as a signal line only.
Indoor PCB
CN_W_PUMP_B
Indoor PCB
CN_PUMP_A4
ACCESSORIES INSTALLATION
WATER PUMP
(B)
6 7
BR BL
L N
Solar pump
AC 230 V
15 16
L N
WATER PUMP
(B)
Solar pump
AC 230 V
103