Controller
Controller
©Aqua-Hot®
125-DN1 Service Manual
REV 220421
©Aqua-Hot®
125-DN1 Service Manual
REV 220421
p. 19
p. 18
13. Using the previously removed hex nut, fasten the
mounting plate to the wall of the Aqua-Hot.
14. Carefully reinstall all of the plugs from the DC harness.
• Ensure that both tabs for all Molex connectors click
into place indicating a properly seated connection.
• Ensure that the single tab for the RVC cable clicks
into place indicating a properly seated connection.
• Suggested order:
• 8-Pin Molex (bottom of the controller)
• 15-Pin Molex (middle left of the controller)
• RVC (middle right of the controller)
• 9-Pin Molex (top left of the controller)
• 12-Pin Molex (top right of the controller)
• 3-Pin Molex power connector
NOTE:
All plugs have only ONE correct orientation. Do
NOT
force the plug into place.
9-Pin
Molex
12-Pin
Molex
RVC
8-Pin
Molex
15-Pin
Molex
Figure 32
7. Lean the top of the mounting bracket out from the unit
wall, and then slide the controller and mounting plate
upwards and out of the unit.
• The bottom of the mounting plate has two key-ways
holding it in place (no nuts or other fasteners)
8. With the controller and mounting plate out of the unit,
use a ¼” socket or nut driver to remove the four nuts
attaching the controller to the bracket. The controller is
supported by four small bushings - ensure that all four
bushings remain on the bracket screws. Remove and
discard the defective controller.
9. Plate new controller onto the mounting plate.
• Ensure the controller is properly oriented - reference
Figure 32.
10. Using the 4 nuts previously removed, fasten the controller
to the mounting plate.
11. Insert the controller and mounting plate into the Aqua-
Hot. As you insert the controller and mounting plate
into the Aqua-Hot, the bottom of the mounting plate
should slide along the wall with the top of the mounting
plate leaned away from the wall to ensure the bottom
catches the key-ways (Figure 30) while the top clears the
mounting stud.
12. Lean the top of the controller and mounting plate back
against the wall and ensure that the bottom of the
mounting plate is seated on the key-ways.
Figure 30
Figure 31
Instructions for Controller Setup after Installation:
After replacement and installation of the Controller, the system will need to be updated via the LCD Screen or RV Control panel.
Please follow the following steps to set up the heating system.
1. Provide power to the main harness of the Aqua-Hot. After the screen lights up, tap the three lines icon on the bottom right
corner. Complete the following steps in order:
• Tap the AQUA-HOT DIAGNOSTICS ICON
• Tap and hold (for 3 seconds) within the “Aqua-Hot Information” section
• Tap SERIAL NUMBER and follow the prompts on the screen
2. After completing Step 1, go back to the “Diagnostics” page, tap and hold (for 3 seconds) in the “Aqua-Hot Information”
section.
• Tap OPTIONS, CLIMATE ZONES, and then select the number of climate zones (A).
• Choose a label and temperature input type for each zone (B).
• Tap BACK until you’ve reached the “Home Screen”.
Tap and hold 3
seconds anywhere
in this section
A
B
Figure 34
Figure 33
Tap and hold 3
seconds anywhere
in this section
