LG MULTI V HYDRO KIT ARNH963K2A4 Installation Manual page 67

Connecting the Circuit Water Pump Interlock
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.
1. Verify the pump being installed was sized correctly considering
the system's design flow rate and static head pressure. Refer to
Hydro Kit rated flow rate information and inlet / outlet temperature
difference in the Engineering Manual.
2. If not already completed, install the pump and connect it to the
piping system.
3. Select a suitable relay for the pump capacity and with a coil rated
for 208-230/60/1 service.
4. Connect appropriately sized wiring per local, state, and NEC
code between the pump starter, the relay, and the Hydro Kit
terminal.
5. Connect the relay to terminals 11 and 12 on the Hydro Kit.
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.
Connecting Third-Party Accessories
Figure 67: Water Pump Interlock Terminal Connections.
Relay
Pump Motor
Wire to Terminals 11 and 12
Starter or
Contactor
Figure 68:
Connections.
11
L
WIRING
Pump
(Main)
12
N
Relay
Pump
67