
3
Wiring Diagram:
Powered CHPRSTATD with batteries, and connect the thermostat to
the boiler according to the following wiring diagram.
CHPRSTATD
Digital Room Thermostat
The latest ESP product manuals
can be found on-line:
Features:1
Easily adjustable dial
LCD showing room temperature
Comfort/Economy or ON/OFF modes
Battery Powered (with battery low indication)
TPI control
Surface mount with wall plate included
250V AC 50HZ
MAINS
SUPPLY
Terminal
ON
OFF
COM
COM OFF
4 3 2 1
ONNot Used
Note:The 4th terminal is
not to be used
Fig.3
4
installation:
Remove the mounting plate from the unit by prying off the mounting
plate in position A(as showing in Fig. 4) with a screwdriver, and
pivoting the bottom of the unit outwards.The CHPRSTATD body can
then be lifted off.
Using mounting screws provided secure the mounting plate directly
to the wall or the pattress box.
Set the required DIP Switch position(refer to DIP Switch Setting
below).
Carefully remove the plastic terminal cover. Terminate the cables
into the terminal block ensuring correct polarity is observed (See Fig.
3 Wiring Diagram).Re-position the plastic terminal cover and screw
into place.
Engage the top of the CHPRSTATD onto the mounting plate retaining tabs, and push firmly to reinstall the unit onto the mounting plate.
Specifications:2
Power Supply: 2 Alkaline batteries 1.5V (type AA)
Contact rating: 3A, 250Vac(Volt Free contact)
Battery lifespan: 1 year
Temperature adjustment range: 5-30°C
Temperature frost protection: 5°C (Non adjustable)
Temperature display range, scale: 3 to 51°C, 1°C
Operating temperature: 0 to 50°C
Storage temperature: -10-60°C
Switching differential: 1°C
Flexible wire size: 0.5-1.5mm2
Rigid wire size: 0.5-2.5mm2
Dimension: 86.8*88.9*32.7mm
Accessory Pack: 2x M3.5*30mm screws,2* PA3.5*30mm
and 2*Rawl plugs
TPI OFFTPI ON
ON OFF
toggle switch
Fig.1 Front View
ON/OFF
TPI ON
℃
TPI OFF
°F
Fig.2 Back View
6CYC
3CYC
℃
°F
ON/OFF
3CYC6CYC
Retaining TabsAlternate
Mounting Holes
Terminal
ON
OFF
COM
Mounting holes
Retaining Tabs
DIP Switch Settings(as showing in Fig. 2):
5
The TPI (Time Proportional & Integral) can be selected ON or OFF
using the DIP switch 1 on the rear of the unit(TPI on as default). We
suggest setting this to the ON position. As the room temperature
approaches the set temperature, the thermostat will intermittently turn
the heating ON and OFF, to help prevent temperature over-shoot.
When TPI is on, the default proportional band is 3°C. If change the
thermostat from one room to another room, users need to set the DIP
switch to OFF position first and supply power to the thermostat, and
then cut off power to the thermostat and reset to ON position again,
so that the thermostat can relearn your room characteristics for best
TPI performance.
Select °C and °F readout (Default °C ) via DIP switch 2: when set
the switch to °C,temperature in the display will be shown °C readout;
When set the switch to °F,temperature in the display will be shown °F.
1

Select ' 'and ON/OFF via DIP switch 3(ON/OFF as default): when
set the switch to ON/OFF, the DIP switch at the base of the thermostat
is used as an ON/OFF switch; when set the switch to' ' ,the DIP switch
at the base of the thermostat is used to switch between' ' comfort mode
and ' ' economy mode.
The boiler type can be set to either 6CYC (Gas) or 3CYC (Oil), using
the DIP switch 4 on the rear of the unit(6CYC as default ).
Comfort/Economy setting: when the switch is set to' ' , the
thermostat controls at the temperature set by the dial. When the
switch is set to the ' ' , the thermostat controls at 4°C below the
temperature set by the dial.
ON
OFF
Setting: the switch is used as ON/OFF control. When the switch
is set to "ON",the thermostat controls at the temperature set by the
setting dial. When set to "OFF",thermostat shuts down its output, thus
the heating system is turned OFF and "OF" is displayed.
Operation Guide:6
Display: means current room temperature, the LCD displays actual
room temperature until the setting dial is moved.
Setting the temperature: turn setting dial to required temperature.
The selected temperature will 'flash' in the LCD to signify it is showing
the set temperature. After a short period the display stops flashing
and shows actual room temperature.
Thermostat status: a flame symbol will be lit whenever the thermo-
stat is calling for heat.
Low battery indication: a battery symbol will flash in the display
when batteries require replacement. Batteries should be replaced
within 15 days, after which the thermostat will turn off the load it is
controlling. When this happens "OF" will be displayed.
Switch function: the function of the switch at the base of the
ON OFF
thermostat has 2 mode options. See above 'DIP Switch Setting'.
Error Code:
E1 flashing in the display: Room sensor short circuit. Thermostat
shuts down its output.
E2 flashing in the display: Room sensor broken. Thermostat shuts
down all its output.
Temperature Notes:
If the room temperature is higher than 30°C. The heating will stop
working.If the room temperature is lower than 5°C. The heating will
start working(Frost Protection).
Date Issued
Issue No Description
J20 A30-CHPRSTATD-01-2 Rev.1
Health & Safety
Health & Safety
This unit must be installed by a suitably qualified person in accordance with the latest IEE Wiring
Regulations.
Regulations.
Isolate mains supply before commencing installation. Please read all installation instructions before
proceeding.
proceeding.
Example circuit diagrams for typical installations are shown. These diagrams are schematic and should
be used as a guide only. Please ensure that all installations comply with the current IEE regulations. For
reasons of space and clarity not every system has been included and the diagrams have been simplified,
for instance some Earth connections have been omitted. Other control components shown in the
diagrams i.e. Valves, Room Stats etc. are general representations only. However, the wiring detail can
be applied to the corresponding models of most manufacturers.
Your product is not user serviceable. Do not dismantle this product.
Due to our policy of continuous product improvement and development, the specifications in this guide
may be subject to change without prior notice.
may be subject to change without prior notice.
2
Unit 7, Target Park, Shawbank Road,
Elite Security Products
Lakeside, Redditch, B98 8YN
Tel: 01527 515150
Fax: 01527 515143
Email: info@espuk.com
Web: www.espuk.com