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WIRING
Connecting Third-Party Accessories
Connecting the External Pump
WARNING
• Always have power off before installing accessories. Failure to do so will cause electric shock, physical injury, and / or death.
•
Never operate Hydro Kit outside of the operational parameters as outlined in this manual and the product specifications. Failure to do
so will cause electric shock, physical injury, and / or death.
•
Never touch wiring or install accessories with wet hands. To do so will cause bodily injury or death.
•
Never operate Hydro Kit outside of the operational parameters as outlined in this manual and the product specifications. Failure to do
so will cause product malfunction and damage.
• See the Pre-Commissioning section for function codes and instructions on accessing the Installer mode that will be needed to set up Hydro
Kit accessories.
An external pump may be required when the room where the floor
heating is to be installed is too large or not well insulated. An exter-
nal pump could also be installed with the buffer tank so that capacity
is maintained sufficiently.
1. Verify if the power of the hydro kit is turned off.
2. Remove front panel and control box cover off of the Hydro Kit
.
3. Locate terminal TB_EXT_PUMP.
4. Route the cable through the bottom of the control panel, and
insert its plug into TB_EXT_PUMP terminal.
5. See next page for Water Pump Interlock Relay connection
instructions.
66
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG Life's Good" is a registered trademark of LG Corp.
Figure 61: Connecting the External Pump.
Hydro Kit PCB
TB_W_PUMP_C
Relay
External Pump
Figure 62: Accessing External Pump Installer
Window.
Contact Signal
(Non Voltage)
Relay Power Source
(30 V DC / 1 A, 250 V AC / 1 A)
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Troubleshooting
