Kegco RTC-2 User manual

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Instruction Manual
MODEL: RTC-2
SET COOL DIFF HEATDIFF ALARM
RT MODE COOL HEAT:
BEFORE USE, PLEASE READ AND FOLLOW ALL SAFETY RULES AND OPERATING INSTRUCTIONS.
Kegco has a policy of continuous improvement on its products and
reserves the right to change materials and specifications without notice
KEGCO
8510 Miralani Dr., San Diego, CA 92126

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Diagram and Description:
1. Display Panel
2. Data Wire
3. Plug
4. Hook
5. Plug Panel
6. Plug Wire
7. Button
8. Sensor
9. Suction Cup
10. Adhesive Tape

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Kegco Digital Temperature Power Control
The Kegco RTC-2 is a digital temperature power control device that overrides an appliances' thermostat. Common
applications include using the RTC-2 to control the power to a freezer to prevent it from getting too cold, or to control the
power to a terrarium to prevent it from getting too hot and maintaining a stable environment. It regulates the amount of
electricity getting to the appliance allowing you precise control over the temperature settings. The control has a setpoint
range of -40 to 100 ℉for a wide variety of uses and settings. It gives you control over the set temperature, as well as the
amount of temperature fluctuation between cycles.
It features pre-wired cords with a plug to install in your electrical socket and a receptacle to plug your appliance into for
easy installation. It has an LCD display which can show set temperature, real temperature and other control
functions. The RTC-2 has both heating and cooling modes with adjustable setpoint and differential as well as the ability to
set a temperature alarm that will alert you if the appliance is too far outside the operating range you enter. A remote
sensor monitors the temperature inside the appliance while the display can be mounted outside, allowing you to make
adjustments without having to open and close the door of the appliance. Adhesive tape is provided for mounting the
display panel to the exterior of the appliance and a suction cup on the sensor wire allows you to place it inside the
appliance and out of the way of it's contents.
Safety Tips:
Before using this product, it must be properly positioned and installed as described in this manual, so please read the
manual carefully. To reduce the risk of fire, electrical shock or injury when using the product, follow these basic
precautions. Failure to heed these safety requirements may result in severe personal injury or death.
Pay attention to indications on the electrical socket when installing any cooling or heating equipment. Do not use in
a loose electrical socket as they are a potential fire hazard.
Do not use this product in the vicinity of any flammable vapors or liquids. The fumes can create a fire hazard or
explosion. Do not use the product in a wet environment where a short may occur.
This product is not intended for use in areas with humidity above 90%
Not for use in areas that experience high vibration.
For use in environments with and ambient temperature range of -20F to 60F.
Not for use in dusty areas. Dust inside the product could cause it to fail.
Do not locate the product near wireless electromagnetic interference or magnetic fields.
DISCLAIMER:
Do not use this device to control equipment outside the parameters set forth by the equipment’s manufacturer. Contact
with components carrying hazardous voltage can cause electrical shock and may result in severe personal injury or death.

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Settings:
The full screen will show up when plugged in
The screen will be as follows 2 seconds after plugging in
SET COOL DIFF HEATDIFF ALARM
RT MODE COOL HEAT:
RT
1. Plugged in:
When first plugged in, the full screen will display for 2 seconds before automatically changing to the default setting screen
which will only show RT. RT= Real Temperature
2. Mode selection(main menu):
In the default display setting, press “SET” button once to enable Mode Selection. The display will show RT(Real
temperature), MODE: COOL, HEAT and “COOL” will be flashing. Press “SET” again and the program stay in “COOL” Mode
or press “UP” and “DOWN” to switch between “HEAT” and “COOL” modes.
3. Temperature setting (submenu):
After selecting “COOL” or “HEAT” Mode, the program is now ready to set the temperature. When “SET” and original
temperature are flashing at the same time, press the “UP” or “DOWN” button to adjust to the desired temperature. Press
“SET” again or leave it for 15 seconds and the system will automatically save the adjusted data and quit.
4. Hidden Menu:
Press and hold “SET” for 3 seconds and the system will go into the Hidden Menu, showing “ COOL DIFF”, “HEAT DIFF” and
“ALARM”. “COOL DIFF” will be flashing with the temp display showing the default setting. Press the “UP” or “DOWN”
buttons to set the desired temperature difference. Press “SET” again to switch to “HEAT DIFF”. When “HEAT DIFF”
flashes, press “UP” and “DOWN” to set the desired temperature difference. Press “SET” again to switch to “ALARM”.
When “ALARM” flashes, press “UP” and “DOWN” to adjust the number of degrees outside the set temperature range the
unit will allow before sounding the alarm. Press and hold “SET” for 3 seconds, or leave it for 15 seconds, and the system will
automatically save the adjusted data and quit. Pressing “SET” for less than 3 seconds will continue to switch among “COOL
DIFF”, “HEAT DIFF” and “ALARM” settings.
5. About the display：
When the system is running in “COOL” mode, if the display shows only “MODE: COOL", it means no power has been input
yet; if the display shows “MODE: COOL” and the snowflake symbol, it means the input power has been properly set; if the
display shows “MODE: COOL” and the snowflake symbol is flashing, it means the system is in a compressor delay stage.
When the system is running in “HEAT” mode, if the display shows only “HEAT”, it means no power has been input yet; if the
display shows “MODE: HEAT” and the sun symbol, it means the input power has been properly set.
Description for operating buttons
Button
Operation
Description
Setting Environment
SET
Press once
System goes into Mode Selection or Switch Mode
Normal operating
Press for 3
seconds
System goes into hidden menu, press again to switch
between COOL DIFF, HEAT DIFF and ALARM
Normal operating
Press once
Data adjusted up
Under Menu setting
Press once
Data adjusted up
Under Menu setting

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Indicative Signal Description：
Indicative
signal
Description
Working status
Display
No Display
Flashing
Indicator light for cooling
Working
Stopped Working
Compressor delay
Indicator light for heat
Working
Stopped Working
n/a
Indicator light for high temp
warning
n/a
n/a
High Temp
Warning
Indicator light for low temp
warning
n/a
n/a
Low Temp
Warning
Measuring the real temp
Measuring the real
temp
Stopped Measuring the real
temp
n/a
Menu Chart：
Menu
Set Range
Default
Unit
MODE
COOL / HEAT
COOL
/
SET
-40～100
78
℉
COOL DIFF
1.0～20.0
6.0
℉
HEAT DIFF
1.0～20.0
6.0
℉
ALARM
1.0～30.0
5.0
℉
Compressor delay is available, delay time is 1 minute
Operation Instruction:
Temperature Control
Under COOL Mode:
The condition to start the cooling equipment: RT≥SET+COOL DIFF/2:
The condition to stop the cooling equipment : RT≤SET- COOL DIFF/2
Remarks: Compressor delay or time between compressor stops and starts will take more than 1 minute.
Under HEAT Mode:
The condition to start the heating equipment : RT≤SET- HEAT DIFF/2
The condition to stop heating equipment : RT≤SET+ HEAT DIFF/2
Warning Input
High Temp Warning:
RT≥SET+(COOL/HEAT) DIFF/2+ALARM
Low Temp Warning:
RT≥SET-(COOL/HEAT) DIFF/2-ALARM
Explanation of Operation：
COOL DIFF/HEAT DIFF can be set from 1~20 and ALARM cab be set from 1~30. When set to 1, there would only be a 1
degree separation from when the unit clicks off until it clicks back on. When set to 20, there would be a 20 degree
separation from when the unit clicks off until it clicks back on.
So for example, if the temperature was set to 32 degrees and COOL DIFF was set at 6 (default), the temperature would go
down to 29 and click off. When it got up to 35, it would click back on again, making the unit run more often but
maintaining a very stable temperature. If the temperature was set to 32 degrees and the COOL DIFF was set to 20, the
unit would run until the temperature went down to 22 and click off. When it got up to 42, it would click back on again
allowing the unit to run less often using less power but with much more temperature fluctuation.

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Trouble Shooting：
Problem
Possible Cause
Solution
Display shows “HHH”
Sensor short circuited
Change the Sensor
Display shows “---”
Broken Sensor Circuit
Change the Sensor
Warning symbol flashing and buzzing
When it’s under COOL mode
Technical failure on cooling equipment
Check cooling equipment
Plugged wrong (Plugged into HEAT)
Plug into COOL
Wrong Mode setting (HEAT Setting)
Change the setting to COOL
Warning symbol flashing and buzzing
When it’s under HEAT mode
Plug panel sensor short circuited causing
non-stop working of HEAT equipment
Change the sensor
Plugged wrong (Plugged into COOL)
Plug into HEAT
Wrong Mode setting (COOL Setting)
Change the setting to HEAT
Warning symbol flashing and buzzing
When it’s under HEAT Mode
Technical failure on HEAT equipment
Check HEAT equipment
Plugged wrong (Plugged into COOL)
Plug into HEAT
Wrong Mode setting (COOL Setting)
Change the setting to HEAT
Warning symbol flashing and buzzing
When it’s under COOL Mode
Plug panel sensor short circuited causing
non-stop working of COOL equipment
Change the sensor
Plugged wrong (Plugged into HEAT)
Plug into COOL
Wrong Mode setting (HEAT Setting)
Change the setting to COOL

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Technical Specification：
Item
Data
Temperature Set Range
-40~100F
Voltage/Currency
110VAC/60HZ
Operating Ambient Temperature
14~140F(-10℃~60℃)
Storage Temperature
-22~185F(-30~85℃)
Operating Ambient Humidity
20%-85%
Display Resolution
0.1F
Temperature Adjustment Step
0.5F
Temperature Difference
±2F
Power
≤3W
Electrical Relay Capacity
10A/110V
Type of Sensor
Cooper nicked probe
Length of Sensor Wire
78 4/5 inch
Length of Data Wire
78 4/5 inch
Length of Power Wire
78 4/5 inch