Keys and LED Indicators
There are nine touch sensitive keys. Some of these keys have more than one function.
There are amber LED indicators located next to each of the four function keys below the display. The LED will glow amber when that function is active. A red LED indicator is located between the ON Key and OFF Key at the left side of the display. This indicator will glow if Alarm Code 91 Check Electric Ready Input occurs. It will also illuminate if a 15 pin Thermo King Data Cable is connected to the serial port on the back of the Base Controller.
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Primary Use – Pressing the ON Key will turn the unit on. Secondary Use – When the unit is on, pressing this key and the PRETRIP Key at the same time will display any alarm codes that are present. Secondary Use – When the unit is on, pressing and holding this key allows the UP ARROW Key and DOWN ARROW Key to increase or decrease the display brightness. Secondary Use – When the unit is on and a different display is shown, pressing this key will return to the Standard Display of box temperature and setpoint. Multi-Temp Use – When Manual Zone Selection is active the selected zone can be turned on and off by simultaneously pressing the ON Key and ENTER Key. |
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| Primary Use – Pressing the OFF Key will turn the unit off. | |
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Primary Use – When the unit is turned on and the Standard Display is shown, pressing the UP ARROW Key will increase the setpoint. Secondary Use – When alarms are being displayed, pressing this key will scroll through the alarms (if more than one alarm is present). Secondary Use – While holding ON Key down with the unit turned on, pressing this key will increase the display brightness (Low, Medium, High). |
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Primary Use – When the unit is turned on and the Standard Display is shown, pressing the DOWN ARROW Key will decrease the setpoint. Secondary Use – While holding ON Key down with the unit turned on, pressing this key will decrease the display brightness (High, Medium, Low). |
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Primary Use – If the setpoint has been changed using the UP ARROW Key and/or DOWN ARROW Key, pressing the ENTER Key enters the setpoint into the base controller’s memory. Secondary Use – When alarms are being displayed, pressing this key will clear the alarm shown on the display. Secondary Use – When the unit is turned on, press and hold this key for five seconds to send a Start of Trip (SOT) to the data logger. Multi-Temp Use – Pressing this key will enable Manual Zone Selection mode and scroll through the installed zones, one zone at a time. When a zone is manually selected the zone can be turned on or off, the setpoint can be changed and a manual defrost cycle can be initiated if zone conditions permit. |
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| Primary Use – If the unit is turned on and is in Continuous Mode, pressing the CYCLE SENTRY/CONTINUOUS Key will switch operation to CYCLE SENTRY Mode and the amber LED indictor will glow. If the unit is running in CYCLE SENTRY Mode, pressing this key will switch operation to Continuous Mode and the amber LED will turn off. | |
| Primary Use – If the unit is turned
on, pressing the HIGH SPEED LOCKOUT Key will activate High Speed Lock-Out.
The unit will switch to low speed operation and the amber LED indictor
will glow. No further high speed operation is allowed until this feature
is turned off. If the High Speed Lockout Timer is enabled, the unit
will automatically return to high speed after a programmed time limit.
This feature is typically used in noise sensitive areas to reduce
unit noise.
Note The HIGH SPEED LOCK-OUT Key is only
used when the unit is operating in Diesel Mode. The HIGH SPEED LOCK-OUT
Key does not have any effect in Electric Mode operation.
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Primary Use – If the unit is turned on, pressing the DEFROST Key will initiate a manual defrost cycle if conditions allow. If the evaporator coil temperature less than 45°F (7°C) the unit will enter a defrost cycle. The amber LED will flash while the defrost cycle is initialized and will glow during the defrost cycle. The defrost cycle will terminate automatically and the amber LED will turn off when the evaporator coil temperature is greater than 52°F (11°C). To manually terminate a defrost cycle turn the unit off and back on. Multi-Temp Use – A zone must be selected before initiating a manual defrost cycle. |
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Primary Use – Pressing and holding the PRETRIP TEST Key for five seconds will initiate either a Full Pretrip Test or Engine Running Pretrip Test so long as no alarm conditions exist. If the Alarm Icon is glowing, record and clear the alarms before starting the Pretrip Test. Press and hold the PRETRIP TEST Key for five seconds. The amber LED may flash while the Pretrip Test is initialized and will glow steady while the Pretrip Test is running. When the Pretrip Test is complete the amber LED will turn off.
Secondary Use – When the unit is turned off press and hold this key for five seconds to show the HMI Control Panel Serial Number (in the upper display) and the HMI Control Panel Software Revision (in the lower display). Secondary Use – When the unit is turned off this key is used to display the Clock/Calendar. |