LG ARNH963K2A2 Installation Manual page 48

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Accessory Installation
Indirect Hot Water storage tank Well
and sensor (Included with the Hydro
Kit. If ordered separately, replace-
ment PN ebG61325701)
Be sure to always have powered off before installation of accessories.
Never operate Hydro Kit outside of the operational parameters as out-
lined in this manual and the product specifications.
Never touch wiring or install accessories with wet hands.
• Installation of the Hot Water Storage Tank Sensor and well is not
necessary if the Hydro Kit will be used in applications that do not
include heating water in tanks.
• The sensor well and storage tank have to be located such that the
39 foot black sensor cable included with the Hydro Kit, reaches be-
tween the Hydro Kit PCB board and Sensor well location on the tank
while considering a proper routing path for the sensor cable.
• Choose a path for the Sensor cable that keeps it at least two (2)
inches away from power wires.
• Depending on the current draw of nearby wiring, the minimum clear-
ance distance may have to be increased.
Tools needed
• Electric drill
• Tap and drill bit properly sized to make a 1/2" FPT hole
• Thermo paste for the sensor well
Procedure
1. If the Indirect Water Storage Tank provided has a sensor well in the selected location, use it.
• If the Storage Tank does not have a sensor well, choose an appropriate position on the tank and install the well provided with the sensor.
2. Remove the sensor and cable from the well.
• Loosen and remove the keeping nut at the entry of the well housing.
• Remove the sensor from the well by gently pulling on the sensor cable.
3. Slide the keeping nut up the sensor wire so it will not get misplaced.
• Put the sensor, sensor cable and keeping nut assembly in a safe location.
4. If the Indirect Storage Tank has water in it, isolate the tank by closing shutoff valves and drain the tank.
5. The sensor well provided has a 1/2" MPT connection. Drill and tap a 1/2" FPT hole in the wall of the tank at an appropriate location.
• Depending on the working pressure of the system, choose the appropriate method to seal the sensor threaded connection.
If welding the sensor well into the tank:
• Insert the well into the thread hole and rotate till the threads on the neck bottom out.
• Weld the sensor to the tank and pressure test as necessary.
Installation without welding:
• Wrap the threads of the sensor well about eight (8) times with Teflon tape.
• Insert the well into the threaded hold in the tank wall.
• Turn clockwise until tight, using a socket or open-ended wrench.
6. Locate the sensor.
• Verify the keeping nut is on the sensor cable with the threads facing the sensor bulb.
48
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.
Cable
Cable = 39'
Figure 47: Indirect Hot Water Storage Tank Temperature Sensor
Schematic
Indirect Water
Storage Tank