User Interface (Controls) - N7X And N8X Models; Power On / Off Button; Mode Button; Temperature Set Button - Norcold Polar N7V Service Manual

USER INTERFACE (CONTROLS) - N7X AND N8X MODELS

D
MODE
NORCOLD
A B

Fig. 14 - N7X and N8X user interface (control) locations

No. Description
A

Power ON / OFF Button

B

Mode Button

C

Temperature Set Button

D Power ON / Indicator Light
E

Temperature Setting Indicators

F AUTO Mode Indicator
G AC Mode Indicator
H Gas Mode Indicator
Power ON / OFF Button
Touch the Power ON / OFF button (See Fig. 14, A) to turn on the
refrigerator.
Touch and hold the Power ON / OFF button for one (1) second to
turn off the refrigerator.
Mode Button
The mode button is manually operated and does not automatically
change the operating mode of the refrigerator.
Touch and hold the Mode button (See Fig. 14, B) to scroll through
the available modes of operation of the refrigerator, one after the
other. When the desired mode indicator(s) comes on, release the
Mode button.
Or touch and release the Mode button to change the available
modes of operation one at a time. There are one (1) Automatic and
two (2) Manual Modes of operation.
■ AUTO Mode: The AUTO Mode indicator (See Fig. 14, F) comes
on and the refrigerator controls automatically select the most
efficient energy source that is available.
■ If available, the refrigerator controls select AC electric as the
power choice and the AC mode indicator (See Fig. 14, G)
comes on also.
■ If AC electric is not available, the controls select gas as the
power choice and the gas mode indicator (See Fig. 14, H)
comes on also.
Polar Series N7V, N7X, N7XL / N8V, N8X, N8XL
F H E
A
G C
■ MANUAL AC mode: The refrigerator operates using only AC
electric as the power source and the AC mode indicator only
comes on.
■ MANUAL GAS mode: The refrigerator operates using only
propane gas as the power source and the propane gas mode
indicator only comes on.
Temperature Set Button
Touch and release the Temperature Set button (See Fig. 14, C) to
view the current temperature setting.
Then touch and release the Temperature Set button to change the
temperature settings, one at a time.
Or touch and hold the Temperature Set button to scroll through
temperature settings, one after the other. Release the Tempera-
ture Set button when the desired temperature setting appears.
There are five (5) temperature settings.
Temperature Setting Indicators
There are five (5) temperature setting indicators (See Fig. 14, E).
■ When only one (1) temperature setting indicator is on, the tem-
perature setting is the warmest.
■ When all five (5) temperature setting indicators are on, the tem-
perature setting is the coldest.

Gas Mode Operation

In AUTO GAS mode and MANUAL GAS mode, the controls ener-
gize the solenoid coil to open the gas valve. Spring pressure closes
the valve when the controls stop the flow of current to the solenoid
coil.
The propane gas burner will cycle in response to the fin tempera-
ture to maintain cabinet temperature.
The controls use an electronic sparker to ignite the propane gas at
the burner.
When either AUTO or MANUAL GAS mode is selected, the refrig-
erator attempts to ignite the propane gas burner. If unable to ignite
the burner and to maintain a flame, the Power ON / Indicator light
changes from amber to red. Refer to "Fault Codes" section.

AC Mode Operation

AUTO AC or MANUAL AC mode operation requires 108 to 132
volts AC. Voltage is to be supplied through a 2 pole, 3-wire, 20 Amp
grounding type receptacle.
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