WITHOUT FRIDGE DEFEND YOU ARE NOT PROTECTED
Dometic & Norcold reliability and fire safety, can you live without it?
WITHOUT FRIDGE DEFEND YOU ARE NOT PROTECTED
Dometic & Norcold reliability and fire safety, can you live without it?
Save money and improve safety on Norcold N510, N511, and N512 by installing the ARP failure prevention device. This page is an installation overview and provides service manual information.
REQUIRED TO DOWNLOAD INSTALLATION INSTRUCTIONS - WEB PAGES ARE SUPPLEMENTAL - EACH VERSION OF CONTROL HAS INTRICACIES REQUIRING THE WRITTEN INSTRUCTIONS.
Instructions: Subjects are listed on left. Click the link to the right to go directly to the subject matter on this page.
The wiring drawing to the left is for the 2-way Norcold N510, N511, and N512. 2-way fridges are identified by the fact that they do not have the dot 3 after the model number (N510 versus N510.3). The factory wiring without the ARP Control has the red (your wire color may differ) wire going from the RV power supply (1) directly to the Norcold control box (2). When the ARP Control (3) is installed the power wire is just rerouted to the red wire on the ARP, and the yellow wire on the ARP is routed directly to the Norcold Control (2).
This figure shows the wiring for the N510, N511, and N512 when the boiler housing thermal switch is installed. This drawing also includes the ARP sensor within the boiler housing.
The drawing to the right is the factory wiring for the Norcold fridges that have the 3-way option. This is how your RV is wired before wiring the ARP Control. Please note the purple (your wire color may differ) wire with the brown arrow. This wire will be removed, and the ARP Control will replace this part of the circuit.
In order to wire the ARP Control, remove the jumper shown in the drawing above and run the ARP Control (3) red wire to terminal-6. The ARP Control yellow wire is connected to terminal-2.
The final photo shows the boiler housing door open, and the sensor of the ARP Control is clipped onto the boiler tube of an N511. Please note that insulation is placed between the ARP Control temperature probe and the boiler tube. This installation is helpful because the temperature sensor cable is isolated from the boiler tube. Do your best to insulate the boiler housing so that heat loss does not affect the cooling efficiency of your fridge.
| FAULT CODE | MEANING | POSSIBLE SOLUTION |
|---|---|---|
| No Display | No DC to Fridge (fuse F1 blown) |
Make sure fridge is on.
Check power and ground to fridge. ARP Control detected an overheat situation, check ARP display to see if a count down period tells when control will turn back on fridge. |
| F | Burner failed to ignite. | Use on/off switch to try to re-ignite; no LP gas?; Click here for pressure test. |
| S | Failure of Flame sense circuit |
LP gas turned off.
Low LP pressure. Click here for pressure test. Manual shutoff valve is closed on LP solenoid. |
| C | Low DC voltage. | See specifications in next section for proper DC voltage range. |
| E | Hi DC voltage. | See specifications in next section for proper DC voltage range. |
| Γ | AC relay stuck closed. | Tap on relay, may need to get service help. |
| A | No AC Power at Fridge |
Check shore power; check RV circuit breaker; Check fuse F3 on Norold control board;
Click here to check GFI. |
| H | AC heater failed open. | Click here to check AC heater. |
| Flashing Temp Setting | Thermistor is disconnected or failed. | Click here to check thermistor. |
| Π | No cooling detected by Norcold control. |
Click here to reset control board.
Click here to check thermistor. Fridge has been operated off level, install ARP Control and this error will never appear. |
Please note that all of the following specifications are believed to be accurate. If any errors are found, please bring them to our attention as soon as possible. For critical specification please contact Norcold as they make changes to their specifications without notice.
| Item | Value | Units |
|---|---|---|
| ARP Control Boiler Temperature | See Note 1 Below | |
| N500 Volume | 5.5 | cu. ft |
| N510 Volume | 5.5 | cu. ft |
| Off-Level Operating Limit | See Note 2 Below | |
| N510 Temp Setting Range | 1 - 5 | 5 = Coldest | See Note 3 Below |
Fuses
| Item | Value | Units |
|---|---|---|
| Board 12V Fuse | 3 | Amp |
| 120VAC | See Note 4 Below | Amp |
DC Power
| Item | Value | Units |
|---|---|---|
| Automatic Ignition | 0.5 | Amp |
| Flapper Heater | N/A | Amp |
| DC Heater N500 | 10.7 | Amp |
| DC Heater N510 | 10.7 | Amp |
| ARP Control Fan (25cfm blower type) | 0.36 | Amp |
| Total Amp Draw | 11.56 | Amp |
AC Power
| Item | Value | Units |
|---|---|---|
| Operating Range | 108 - 132 | VAC |
| AC Heater N500 | 1.8/61.3 | Amps/Ohms |
| AC Heater N510 | 1.8/61.3 | Amps/Ohms |
| Measurement Conditions | 110 | VAC |
LP Gas
| Item | Value | Units |
|---|---|---|
| Gas Pressure | 10.5 - 11.5 | inch w.c. |
| Heat Input | 1200 | BTU/hour |
| Gas Jet | LP10 | |
| Gas Jet (new style) | LP10 | |
| Electrode to Burner Gap | 1/8" to 3/16" | inch |
NOTES
Note 1: 185-195°C - 365-383°F
Note 2: Dependent on ambient and ARP boiler temp.
Note 3: Thermistor Values
Note 4: 5 Amp type AGC fast acting.