Maintenance - LG MULTI V HYDRO KIT ARNH963K2A4 Installation Manual

MAINTENANCE

Maintenance
The table below outlines the maintenance type and schedule that must be followed for the Hydro Kit. For detailed record keeping, make cop-
ies of the schedule, note when the maintenance occurred in the "Date Maintenance Performed" column, and store in a safe place.
Table 49: Maintenance Schedule Table.
Scheduled Time
Monthly
Test the circulating water loop for proper levels of water treatment chemicals and antifreeze.
Quarterly Check refrigerant pipe and water pipe insulation for tears or other damage that exposes cold surfaces
Annually
A trained service technician must perform routine maintenance to avoid Hydro Kit performance degradation.
• Service is necessary if system failure is due to strainer blockage.
• Clean the strainer as listed in the table above, and whenever CH14 error occurs.
• If the system stopped operating, and any CH error message appears, follow the procedures detailed below and in the rest of the "Mainte-
nance and Troubleshooting" section.
• Do not indiscriminately replace the water piping. There is a possibility that foreign particles and air bubbles will enter the water piping
system, which will lead to the plate-type heat exchanger freezing.
• If it is essential to change the water piping, first separate the water piping from the Hydro Kit.
• Thoroughly clean the interior of the new piping to remove any foreign particles, and then connect the piping to the Hydro Kit.
The Hydro Kit must be serviced immediately by a trained technician if any of the situations are occurring:
1. If a burning smell, loud noise, etc., is detected.
2. If the main power wiring is damaged or is hot to the touch.
3. If an error code is displayed.
4. If the Hydro Kit is leaking.
5. If any safety, ground, earth, etc., switches or fuses are not working properly.
• If the Hydro Kit will not be used for an extended period,
tection functions (Example: water pump anti-lock) will not operate. There is risk of product malfunction and damage.
• Do not disconnect power to the Hydro Kit during operation. First, stop Hydro Kit operation, stop outdoor unit operation, and then discon-
nect the power. If power is disconnected when the Hydro Kit is still operating, the plate-type heat exchanger will freeze and burst, resulting
• If the Hydro Kit will not be used for an extended period,
tection functions (Example: water pump anti-lock) will not operate. There is risk of product malfunction and damage.
• Do not disconnect power to the Hydro Kit during operation. First, stop Hydro Kit operation, stop outdoor unit operation, and then discon-
nect the power. If power is disconnected when the Hydro Kit is still operating, the plate-type heat exchanger will freeze and burst, resulting
in product malfunction and damage.
102
Maintenance Procedure
Verify system water level is correct.
Purge any air from the system using the manual air vent.
Check for water leaks in the system.
Verify the strainer is clean.
Check the pump, valve stems, and pipe connections for leaks.
that produce condensation.
Replace insulation that is wet and repair as needed.
Verify the flow switch is operating correctly.
Do not disconnect the Hydro Kit power.
do not switch off the power supply. If power is not supplied, some special pro-
do not switch off the power supply. If power is not supplied, some special pro-
Due to our policy of continuous product innovation, some specifications may change without notification.
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Date Maintenance
Performed