ES-230 - Thermostat KING - Free user manual and instructions

Product Type	Line Voltage Thermostat for Electric Heating
Model	ES-230
Voltage	208/240 VAC
Temperature Range	40°F to 95°F (4.4°C to 35°C)
Default Temperature	68°F (20°C)
Display	Liquid Crystal Display (LCD), Extra Large 2" x 1.5"
Accuracy	±1.2°F
Relay Rating	30 Amps (before derating), 22 Amps continuous resistive
Maximum Wattage	5280 Watts at 240V
Dimensions (Estimated)	4.5" x 3.0" x 1.5" (114 x 76 x 38 mm)
Weight (Estimated)	0.5 lb (0.23 kg)
Mounting	Standard 2" x 4" electrical outlet box, ~5 ft above floor
Delay	3 minutes on and off (built-in time delay)
Backlight	LED, user-selectable on/off via switch under left corner
Heat Indicator	Red LED (illuminates when calling for heat)
Power Supply	Hardwired, no batteries required
Installation	Qualified electrician required; wire connections: black (line), red (load), blue/white (neutral)
Cleaning	Damp cloth for case; blow out dust from air vents for accurate operation
Safety	Electric shock hazard; turn off power before installation; read all instructions
Repair / Spare Parts	No user-serviceable parts; contact qualified service if faulty

Frequently Asked Questions - ES-230 KING

What voltage does the King ES-230 thermostat require?

The ES-230 thermostat is designed for 208/240 VAC line voltage heating systems. Always verify your heater voltage before installation.

Can I use the ES-230 with 120V heaters?

No, the ES-230 is for 208/240V circuits. For 120V applications, use the ES-120 model instead.

What is the maximum wattage the ES-230 can handle?

The maximum continuous resistive load is 5280 watts at 240V. Exceeding this may damage the thermostat or create a fire hazard.

How do I adjust the temperature on the ES-230?

Tap the up arrow or down arrow on the front of the thermostat. The display will show the set point temperature with a thermometer icon. It returns to room temperature after a few moments.

Does the thermostat have a backlight?

Yes, an LED backlight is available on some models. It can be turned on or off via a small switch located under the lower left corner of the thermostat.

What is the default temperature setting?

When powered on, the thermostat defaults to 68°F (20°C). This is the factory setting and can be changed by tapping the arrow keys.

Why is there a delay before the heater turns on or off?

The thermostat has a built-in 3-minute time delay to prevent rapid cycling, saving energy and providing more stable temperature control.

How accurate is the ES-230 thermostat?

The temperature accuracy is ±1.2°F under normal operating conditions.

Where should I mount the thermostat for best performance?

Install it about 5 feet above the floor, in an open area away from heat sources (lamps, TV, direct sunlight) and cold drafts. Avoid plumbing pipes in the wall.

How do I clean the thermostat?

Use a damp cloth to wipe the plastic case. Periodically blow out any dust from the air vents (top and bottom) to maintain accurate temperature sensing.

USER MANUAL ES-230 KING

General information:

This thermostat is designed to provide the highest level of accurate temperature control for residential line voltage electric heating in 120 or 208/240 volt. Almost all electric heaters installed as original equipment in a residential application will be 208 or 240 volt. It is very rare that a home, apartment or condominium would be wired with all 120 volt heaters. Check your voltage to make sure you have the right thermostat for your heater voltage. A 2 pole or double wide circuit breaker at the panel would indicate that you should use the 240 volt model. A single pole or single wide breaker would indicate a 120 volt circuit. There are some exceptions to this rule so checking with a voltmeter is the only way to know for sure. Be safe and smart, electricity can cause severe injury or death.

The thermostat will provide years of comfort control for your family for small fan driven electric heaters, baseboards, radiant ceiling, wall panel heaters, cove heaters, or any line voltage resistance heating systems that do not have an electric motor over 1/3 hp. The thermostat will be warm to the touch on top. This the electronics operating, it also provides air currents across the face of the thermostat that help it sense room temperature better.

Specifications: For ES-120 and ES-230

Temperature range: 40 to 95

Temperature Default: 68 Degrees

Display Format: Liquid Crystal Display (LCD)

Display Size: Extra Large Format - 2" x 1½"

Sample Rate: Every 60 seconds

Time Delay: 3 Minutes on and off

Relay rating: 30 amps before De-rating

Backlighting: LED

Heat Indicator: Red LED

Accuracy: + or- 1.2 Degrees F

Rating: 22 amps resistive continues

Wattage:5280 watts ES-230

2640 watts ES-120

Power Supply: 120 volt for ES-120

208/240 volt for ES-230

Operation:

This precision electronic thermostat will sense the room air at the bottom of the thermostat by a thermistor. This very sensitive sensor will send information to the microprocessor. As the temperature drops, the information it sends will indicate if heat is needed. To reduce any undesirable fast on/off cycles, the processor has a built in 1 to 3 minute delay. This will save energy and provide the best control of a space. This thermostat dose not require batteries and will have a default setting of 68^ F when powered up. It is easily changed by tapping the arrow keys on the front of the thermostat. Up arrow increases temperature and down arrow reduces temperature. Backlighting is provided on some models and can be turned off or on by a small switch under the left corner of the thermostat. This will allow you to see the thermostat in low light or at night.

Installation:

This line voltage device should be installed and serviced by a qualified electrician. The thermostat has been designed to mount to a standard 2" x 4" electrical outlet box. Leveling of the thermostat is not required. Mounting screws are provided. Mount the thermostat about five feet above the floor in an open area in the living room. A good rule of thumb is to place the thermostat above the wall switch for that room. This works well for most bedroom and makes it very convenient to turn the heat lower when leaving the room. Avoid mounting the thermostat where there may be plumbing pipes in the wall or placing a lamp or TV too close to the thermostat. The heat from these items affects the thermostats performance.

KING ELECTRICAL MFG. CO. 9131 10TH AVENUE SOUTH SEATTLE, WA 98108 · PH: 206.762.0400 · FAX: [phone] · www.king-electric.com

INSTALLATION AND MAINTENANCE

ES-230 & ES-120

DANGER

ELECTRIC SHOCK OR FIRE HAZARD

READ ALL WIRE SIZING, VOLTAGE REQUIREMENTS AND SAFETY DATA TO AVOID PROPERTY DAMAGE AND PERSONAL INJURY

REPLACES MODELS: CALV/T4800/T4700/T4600/1A66/D22/S22/

M602/T498/T4398/MD26/WR661/1D22/S2022/

TW242/TD902/T410/TD942/M7/M402/M512

TOOLS NEEDED:

PHILLIPS SCREWDRIVER

WIRECUTTERS

VOLT METER

DISPLAY LEGEND

WARNING

READ CAREFULLY - These instructions are written to help you prevent difficulties that might arise during installation of thermostat. Studying the instructions first may save you considerable time and money later. Observing the following procedures will cut your installation time to a minimum. Save these instructions for future use.

Thank you for buying this King Thermostat. It should provide years of service and comfort to your home. Inspect the package. You should have received the thermostat with its cover and two screws to attach it to a wall box.

1. Check the total load of the heaters that you are connecting to the thermostat. The maximum wattage at 240 Volt is 5280 Watts. If you have the 120 Volt version maximum is 2640 Watts. You need to stay below this total wattage connected to the thermostat. The lower the wattage the longer the life of the contacts in the relay.
2. To wire the thermostat determine which pair of wires are coming from the breaker panel and which pair lead to the heater.
3. Attach, with a wire nut, the blue wire (white wire on 120 Volt model ES120) into the pair of white wires in the junction box.
4. Use black lead from the Circuit Breaker panel and attach it to the black lead on the thermostat. This will provide power to the thermostat and LCD display and backlight.
5. Attach black lead going to the heater to the red lead on the thermostat. This will provide power to the heater when the thermostat calls for heat.
6. Remove thermostat cover by holding back of thermostat with one hand and grasp the top and bottom of the cover with the other hand, pulling towards you evenly.
7. Push the wires carefully into the junction box making sure no wires will be pinched when attaching to the wall using #6-32 screws provided.
8. Holding thermostat into wall box, fasten screws at the top and bottom mounting holes attaching to wall box. (Do not over tighten screws)
9. Turn on power to test. Increase set point to higher than current room temperature by tapping the up button. There will be up to a 3 minute delay in turning on. The red indicator will turn on and you will here a small click as the heater energizes. Turn the thermostat down by tapping on the down arrow.
10. To turn on backlighting: Under the bottom left of the thermostat, you will feel a small switch. Moving one way will turn on the light and the other will turn off the backlight. You have now verified that the thermostat is in perfect working order and ready for years of trouble free operation.
11. Mounting tips: Make sure there is not anything that could affect the average room temperature sensing of the thermostat such as plumbing pipes in the wall, a lamp close by, direct sunlight, a T.V. set, and/or cold drafts from a door opening.
12. Cleaning: A damp cloth will clean the plastic case surface of finger prints and dust. Strong spray cleaners may damage plastic case, remove writing or arrows printed on case. Blow out any dust that may accumulate on air vents on top or bottom. Good air circulation is key to long life and accurate operation.
13. Humid locations: Mildly humid location like bathrooms may see a reduced life due to corrosion on the contact and lint from towels getting into air vents on thermostat. Blow out vent regularly and mount thermostat away from shower locations for longer life.
14. Power outages: The thermostat will default to the 68 degree factory setting.

KING ELECTRICAL MFG. CO. 9131 10TH AVENUE SOUTH SEATTLE, WA 98108 · PH: 206.762.0400 · FAX: [phone] · www.king-electric.com

WIRING INSTRUCTIONS

king

ES-230 & ES-120

DANGER

ELECTRIC SHOCK OR FIRE HAZARD

READ ALL WIRE SIZING, VOLTAGE REQUIREMENTS AND SAFETY DATA TO AVOID PROPERTY DAMAGE AND PERSONAL INJURY

DIMENSIONS:

START-UP DISPLAY:

Will flash until button is pushed to stop it.

DEFAULT:

Defaults to set point temperature 68°F.

ROOM TEMPERATURE:

The thermostat will default to displaying the room temperature.

ADJUST MODE:

ROOM TEMPERATURE:

To adjust temperature: Tap one of the arrow keys to change from room temperature to Set Point temperature. A thermometer will show up on the display. This shows that you can now tap the key up or down to change the temperature of the room.
The thermostat will default back to the room temperature after a few moments.

DISPLAY CHANGE

On the bottom edge of the thermostat, there are air vents. In one of the vents on the left side, just behind the illumination switch, there is a larger opening with a pin collector attached. With needle nose pliers, pull the connector off. This will put the thermostat into the metric Celsius mode.

Exterior view of a white industrial electrical enclosure with ventilation grilles and a small circular button (no visible text or symbols)

POWER IN