TECO Controller Reset Guide

Important Safety Information

WARNING! Parts replacement and reparation may only be carried out by qualified persons. Improper execution can cause electric shock, burns, and fires.

WARNING! TECO S.r.l. declines any responsibility for damages caused by incorrect installation.

Disconnect the chiller from the power supply before performing any internal work. Never touch internal parts or dismantle the chiller while it is connected to the power supply to avoid potential electric shock. ⚡

[Danger Symbol] Electric Shock Risk

Equipment Needed

A screwdriver is required for this procedure.

Description of a screwdriver: A tool with a handle and a shaft, typically with a shaped tip that fits into the head of a screw, used for turning screws.

Procedure

Step 1: Remove Screws

Using the screwdriver, remove the screws indicated in the image below. There are 16 screws in total.

Image Description: Two views of the chiller unit, highlighting the locations of 16 screws around the casing that need to be removed.

Step 2: Disconnect and Remove Cover

Disconnect the ground wire from the cover. Then, remove the cover.

Image Description: Left image shows a hand disconnecting a green ground wire from the chiller's side panel. Right image shows the chiller unit with the side cover removed, revealing internal components.

Step 3: Identify RESET Pins

Locate the RESET pins on the Printed Circuit Board (PCB). It is recommended to take a picture of the "reset", "uv", and "heater" pins to remember the original jumper placement.

Image Description: A close-up view of a PCB with several pins clearly labeled: RESET, HEATER, NO, and UV. A red rectangle highlights the RESET and HEATER pins.

Step 4: Move the Jumper

Remove the jumper from the "Heater" or "UV" pins. Then, place the jumper on the RESET pins.

Image Description: Two images showing the PCB. The first image highlights the jumpers on the HEATER and UV pins. The second image shows the jumper moved from the UV pins to the RESET pins.

Step 5: Reassembly and Power Cycle

Reassemble the chiller: place the metal cover back in its original position and reconnect the ground wire to the metal fairing.

Connect the chiller to the power supply.

Turn on the chiller for 5 seconds, then turn it off.

Disconnect the chiller from the power supply.

Dismount the metal cover (refer to steps 1 and 2).

Move the jumper from the RESET pins back to its original position (as noted in step 3). The RESET pins will then be free (without a jumper).

Step 6: Final Reassembly

Reassemble the chiller: place the fairing back in its own place.

Ensure the ground wire is connected to the metal fairing.

ATTENTION: Connect the chiller to the power supply only after the metal fairing is in place and the water is circulating.