SAVE THESE INSTRUCTIONS
GENERAL INFORMATION
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LISTED
SPECIFICATIONS: ESP 230 & 120
Temperature range: 44° to 95°F
ESP-230 & ESP-120
with battery program back-up
DANGER
ELECTRIC SHOCK OR FIRE HAZARD
READ ALL WIRE SIZING, VOLTAGE REQUIREMENTS AND SAFETY
DATA TO AVOID PROPERTY DAMAGE AND PERSONAL INJURY
!!
MoTuWeThFrSaSu
P M
TEMP SET
Backlight Switch System On/Off
Reset
CLOCK
HEAT
PROG
ROOM
TEMP
HOLD
SET
RESET: BACK TO PRESETS
CLOCK: DAY AND TIME
PROGRAM: VIEW PRESETS
HOLD TEMPERATURE
SET BUTTON:
RUN PROGRAM
TEMPERATURE OR TIME
UP AND DOWN
HEAT ON INDICATOR
LEAVE THESE INSTRUCTIONS WITH HOME OWNER
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
Temperature Default: Your setting
Display Format: Liquid Crystal Display (LCD)
Display size: Large format
Sample Rate: Every 60 seconds
Delay on or off: 3 minutes
Illumination: Green LED
Heat Indicator: Red LED
Relay Rating: 30 Amps before de-rating
Accuracy: ±1.2º F
Maximum Amps: 22 resistive continuous
Maximum Watts: 5280 (ESP-230)
2640 (ESP-120)
Minimum Watts: 0
Power Supply: 120 Volt (ESP-120)
208/240 Volt (ESP-230)
System On/Off Switch
Battery Backup
heater voltage. A 2-pole, or double wide circuit breaker, at the panel would indicate 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.
ENERGY STAR
Be safe and smart, electricity can cause severe injury or death. If you are uncomfortable hire an electrician for the project.
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 is
normal operation and also provides air currents across the face of the thermostat that better help it sense room temperature.
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 3 minute delay. This will save energy and provide the best control of a space.This thermostat does not require batteries and will have a
default setting of 68°F when powered up. Temperature is easily changed by tapping the ARROW keys or 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. A system On/Off switch is located under the lower right corner
to disable the thermostat. This will not disconnect all the power to the heater. To perform maintenance on the heater you need to turn the circuit breaker at the
circuit breaker panel off.
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. A
good rule of thumb is to place the thermostat above the light switch for that room. This works well for most bedrooms 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 thermostat’s performance.
Due to intermally generated heat and an offset to compensate for this, the display temperature of the thermostat may not match a digital thermometer placed next to it or in the same room. This
thermostat will keep very accurate control of room temperature. Set it to what feels comfortable, not the temperature you were used to with your old thermostat.
KING ELECTRICAL MFG. CO. 9131 10TH AVENUE SOUTH SEATTLE, WA 98108 · PH: 206.762.0400 · FAX: 206.763.7738 · www.king-electric.com
ESP information.ai : 01/07
SAVE THESE INSTRUCTIONS
INSTALLATION AND MAINTENANCE
ESP-230 & ESP-120
with battery program back-up
DANGER
ELECTRIC SHOCK OR FIRE HAZARD
READ ALL WIRE SIZING, VOLTAGE REQUIREMENTS AND SAFETY
DATA TO AVOID PROPERTY DAMAGE AND PERSONAL INJURY
!!
DAY OF WEEK
PM DISPLAYED
(AM WILL BE BLANK)
TIME OF DAY
SET TEMPERATURE
PROGRAM 1,2,3,4
ROOM TEMPERATURE
BACKLIGHTING
WARNING
DISPLAY LEGEND
BACKLIGHT SWITCH
Backlight Switch On / Off Switch
!!
tap PROG and SET
simultaneously to
enter program mode
ON/OFF SWITCH
U
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®
C US
LISTED
REPLACES MODELS:
CALV / T4800 /
T4700 / T4600 /
1A66 / D22 /
S22 / M602 /
T498 / T4398 /
MD26 / WR661 /
1D22 / S2022 /
TW242 / TD902 /
T410 / TD942 /
M7 / M402 /
M512
READ CAREFULLY - These instructions are written to help 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 wallbox.
ENERGY STAR
1. Check the total load of the heaters you are connecting to the thermostat. The maximum wattage at 240 Volt is 5280 Watts (ESP230). If
you have the 120 Volt version the maximum is 2640 Watts (ESP120). 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 circuit breaker panel and which pair lead to the heater.
3. With wire nuts attach the blue wire (white wire on 120 Volt model ESP120) into the pair of white wires in the junction box. (Option is red
wires)
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, 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 wallbox, fasten screws at the top and bottom mounting holes attaching to wallbox. 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. The On / Off switch is located on the lower right corner to disable any operation. You have now verified the
thermostat is in perfect working order.
11. Mounting tips: Make sure there is nothing 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 fingerprints 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 locations 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 internal battery program backup will hold all or your settings. These batteries are constantly charged and should never
need to be replaced.
KING ELECTRICAL MFG. CO. 9131 10TH AVENUE SOUTH SEATTLE, WA 98108 · PH: 206.762.0400 · FAX: 206.763.7738 · www.king-electric.com
ESP installation.ai : 01/07
SAVE THESE INSTRUCTIONS
System
On / Off Switch
Backlight Switch
Temperature Sensor
WIRING INSTRUCTIONS
CIRCUIT
BREAKER
ESP-230 & ESP-120
with battery program back-up
DANGER
ELECTRIC SHOCK OR FIRE HAZARD
READ ALL WIRE SIZING, VOLTAGE REQUIREMENTS AND SAFETY
DATA TO AVOID PROPERTY DAMAGE AND PERSONAL INJURY
DIMENSIONS:
3 1/8" 1 1/4"
4 7/8"
1. To wire the thermostat determine which pair of wires are coming
from the breaker panel and which pair lead to the heater.
2. With wire nuts attach the blue wire (white wire on 120 Volt model
ESP120) into the pair of white wires in the junction box.
3. Take a black lead from the circuit breaker panel and attach it to
the black lead on the thermostat. This will provide power to the
thermostat, LCD display, backlighting and heater relay.
4. Take the black lead that goes to the heater and attach it to the
red lead on the thermostat. This will provide power to the heater
when the thermostat calls for heat.
5. Remove cover of thermostat by holding back of thermostat and,
with a finger and thumb on the top and bottom of the thermostat,
pull cover towards you evenly to remove cover and expose
mounting holes and buttons.
6. Push the wires carefully into the junction box making sure no
wires are pinched or will get in the way of the screws mounting the
thermostat. Now attach the thermostat to the wallbox with the #6 32 screws provided.
7. Hold thermostat into wallbox and place screws in top and bottom
mounting hole and attach to wallbox.
8. Turn on power and test by increasing set point to higher than
room temperature by tapping the up button. There will be up to a 3
minute delay in turning on. The indicator light will turn on and you
will here a small click and at the same time and the heater should
be on. Turn the thermostat down by tapping on the down arrow.
!!
2"
LINE 1
BLACK
BLACK
THERMOSTAT
RED
BLACK
HEATER - UP TO 5280 WATTS
LINE 2
DISPLAY CHANGE
Fahrenheit to Celsius:
WHITE
WHITE
240V
BLUE
120V
WHITE
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. Turning
off power to stat completes reset.
Backlight Switch
On / Off Switch
Temperature Sensor
(Line)
POWER IN
1 1/4"
BLACK
WHITE
BLACK
BLUE ON ESP-230
WHITE ON ESP-120
RED
2 X4
JUNCTION
BOX
BLACK
WHITE
2"
TO HEATER
C US
(Load)
Due to intermally generated heat and an offset to compensate for this, the
display temperature of the thermostat may not match a digital thermometer
placed next to it or in the same room. This thermostat will keep very accurate
control of room temperature. Set it to what feels comfortable, not the
temperature you were used to with your old thermostat.
System
U
®
LISTED
L
KING ELECTRICAL MFG. CO. 9131 10TH AVENUE SOUTH SEATTLE, WA 98108 · PH: 206.762.0400 · FAX: 206.763.7738 · www.king-electric.com
ESP wiring.ai : 01/07
ESP-230
SAVE THESE INSTRUCTIONS
Set Date
Set Time
View Current Program
Program Adjustments
Energy Saving Schedule
Vacation Hold
Permanent Hold
ESP-230
1
Set Date
Upon initial power-up, the thermostat
will be flashing.
1
Press the ARROW buttons to stop
flashing.
2
Press the “CLOCK” button, a day
will flash, then press the ARROW
buttons to set today's day.
2
Set Time
1
Press the CLOCK button, the hour
CLOCK button
ARROW buttons
will flash, then press the ARROW
buttons to set the hour.
2
Press the CLOCK button again to
set the minute with the ARROW
buttons.
3
To exit , pr es s the “SET” button.
CLOCK button
SET button
PROGRAMMING INSTRUCTIONS
With Battery Program Backup
SWING
HOLD
HOUR[S]
ROOM
TEMP
SWING
HOLD
HOUR[S]
ROOM
TEMP
Reset
CLOCK
PROG
HOLD
SET
Reset
CLOCK
PROG
HOLD
SET
Program Adjustments
4
1
Press the “SET” button and the
“PROG” button at the same time.
This puts you into Program mode and
the days will be flashing.
2
Press the ARROW buttons to select
all seven days or one at a time.
3
Press the “PROG” button to highlight
the time.
4
Press the ARROW buttons to adjust
time.
5
Press the “PROG” button again to
set the temperature for that specified
time.
6
Repeat these steps for all Presets: P1, P2, P3, and P4.
7
When you reach P1 again, press one of the ARROW buttons
to change the day and repeat Programming.
8
For P2, P3, & P4 if all the days are identical for that
temperature, select all seven days for that P number.
9
Press the “SET” button to resume normal operation.
Su
P M
TEMP SET
MANUAL
COMFORT
HEAT
Su
P M
TEMP SET
MANUAL
COMFORT
HEAT
U
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®
C US
LISTED
MoTuWeThFrSaSu
P M
ENERGY STAR
TEMP SET
MANUAL
COMFORT
HEAT
SWING
HOLD
HOUR[S]
ROOM
TEMP
Reset
CLOCK
PROG
HOLD
SET
Push at
same time
View Current Program
3a
1
Press the “PROG” button to view
the P1 temperature or Preset 1
setting for that day.
2
Press the “PROG” button multiple
times to scroll thru presents for P2,
P3, and P4.
3
Press the “SET” button to resume
normal operation.
Energy Saving Schedule
3b
PROG button
SET button
P1 Morning wake-up program
P2 Daily away from home program
P3 Evening home program
P4 Nightly sleep program
your customized schedule
Program Temp.
Mo Tu We Th Fr Sa Su
P1
P2
P3
P4
Su
P M
TEMP SET
MANUAL
COMFORT
default schedule
Program
P1
P2
P3
P4
70°
62°
70°
62°
HEAT
SWING
HOLD
HOUR[S]
CLOCK
ROOM
TEMP
Mo-SuTem p.
6:00am
8:00am
6:00pm
10:00pm
Reset
PROG
HOLD
SET
5
Vacation Hold
For extended days of absence:
1
Press the ARROW buttons to set
temperature.
2
Press the “HOLD” button until d:01
displays in the time window.
3
Press the ARROW buttons until
your number of days on vacation is
displayed. Up to 99 days can be
programmed.
4
To stop vac ati on hold press “SET”
button and normal operation is
resumed.
6
Permanent Hold
To perm an en tl y hold the te mp er at ure:
1
Press “HOLD” button.
2
Press ARROW buttons to set
temperature.
3
To stop per man ent hold press
“SET” button and normal
operation is resumed.
When looking at the bottom of the
unit the switches are as follows:
– upper left: backlight
– upper right: system on/off
– lower right: temperature sensor
HOLD button
HOLD button
Su
P M
TEMP SET
SET button
Su
P M
TEMP SET
MANUAL
COMFORT
SET button
Reset
SWING
HOLD
HOUR[S]
CLOCK
HEAT
PROG
ROOM
TEMP
HOLD
SET
Reset
SWING
HOLD
HOUR[S]
CLOCK
HEAT
PROG
ROOM
TEMP
HOLD
SET
Programming tech support: (800) 603-5464 ext 111 / info@king-electric.com
ESP programming.ai : 01/07
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