Why And How To Bypass Arp; Post Install; Testing Arp Install; What Set-Point Function Should I Use - ARP Fridge Defend General Install Manual

ARP Control v5x General Installation Guide

11.1 Why and How to Bypass ARP

The ARP Control increases safety, reliability,
and efficiency of you RV fridge in most cases.
Magnuson Moss Warntee Act
prevent the abuse of consumers by
unscrupulous venders which try to insinuate

POST INSTALL

12.1 Testing ARP Install

WARNING Once the ARP has been installed, please see the User Guide to test the
installation. The User Guide sections Test ARP Relay thru Test Fan Relay discuss the button
sequence for this operation. See the Troubleshooting Guide for any error messages displayed.

12.2 What Set-Point Function Should I Use?

The ARP Control default settings works for a majority of Dometic and Norcold refrigerators see
summery of settings for exceptions. If your fridge does not work properly with the default
settings there are 3 Set-Point Function settings, see the Troubleshooting Guide along with
the Ancillary Graphical User Instructions for information required to change the setting.
Also, the information following assumes that the ARP temperature sensor has been installed
correctly.
Summery of the Settings:
C-H: Default set-point function. This setting works for a majority of fridges. Some older
Dometic, Amish Cooling Units, and Norcold model 1210 and 2118 cooling units made
after the year 2013 will require the PID mode.
C-L: If you have a small fridge, such as a 3 cubic foot fridge, the ARP Control should be set to
the C-L set-point function. The C-L set-point function has a lower set-point value for
smaller fridges. How will you know if your fridge needs the C-L mode? If you put the ARP
into the C-L set-point function and the ARP turns off the fridge approximately one hour
after the fridge starts, the C-L set-point function control value may be too low, in this case
return the control to the C-H setting.
PID: The PID mode is designed for older Dometic, Amish Cooling Units, and Norcold model
1210 and 2118 cooling units.
point function does not work on your fridge, the PID setting may be needed on your
fridge. Also, we have found that some (this is rare) Norcold 2118 refrigerators need the
'SP' value raised from the default of 5 to 10.
Click here for web resource to change to PID Set-Point Function

CONCLUSION

The ARP Control can be wired using many different configurations, all of which depend on the
installer's preference and the wiring of the RV. The installer shall test the ARP upon
installation to check the function of the control. Please see the User Manual for the procedures
to test the internal relay operation. In addition, test to make sure that the RTD temperature
rises when the refrigerator is turned on.
Finally, Fig. 29 shows how to bypass the ARP Control for either troubleshooting or to meet
factory warranty conditions. Due to legal considerations, refrigeration manufactures' and their
04/20/20 20 © 2013 - 2020 ARPC L.L.C. All rights reserved.
that your warranty is void due to the addition
of a device such as the ARP Control. Fig. 29
shows how to bypass the control to meet any
OEM warranty requirements or to remove the
was enacted to
ARP from the system for troubleshooting
purposes.
Click here to ID Norcold 1200 require
22
PID. If the C-H set-