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INSTALLING THE WATER CIRCUIT
Water Circuit Components
The water circuit guidelines and diagrams are for illustrative purposes and are to be used for references only; not all components and accessories
local, state, and federal codes.
Freeze Protection Flow Switch (Optional)
Flow switch must be rated for 208-230V and be normally closed. Select a flow switch following the pressure specifications of the water sup-
ply system.
When setting the flow switch, use the default set value of the Hydro kit to satisfy the minimum flow rate:
• Minimum Flow Rate Range: 50%
• If the set value does not satisfy the minimum flow rate, or if the set value is changed arbitrarily, it
can result in performance deterioration or system failure.
• If the water supply is hard, the plate type heat exchanger of the Hydro Kit could become dam-
aged or system failure could occur.
• If the Hydro Kit displays a CH24 or CH180 error code, it is possible that the interior of the plate-
type heat exchanger is partially frozen. If this occurs, resolve the partial freezing issue and then
operate the Hydro Kit again. (Causes of partial freezing: Insufficient heat water flow rate, water
not supplied, insufficient coolant, foreign particles inside plate-type heat exchanger.)
Valve Orientation
Refer to valve manufacturer's installation instructions.
42
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 24: Flow Switch Diagram.
Cover
Micro-switch
Adjustment screw
Vibration plate
Bellows
1 inch or
3/4 inch
socket
Pad
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Troubleshooting
