Eph controls Crtp User Manual
Page 1 of 3
CRTP Room Thermostat Battery Operated
Contents
1. Factory default settings
2. Specication & wiring
3. Mounting
4. Installation
5. Wiring diagram
6. Frost protection
7. Button / symbol description
8. Resetting the thermostat
9. Keypad lock and unlock
10. High and Low temperature limitation
11. Setting the date and time
12. Factory default program settings
13. Adjusting the program settings
14. Temporary override (Manual)
15. Permanent override (Hold)
16. Replacing the batteries
Prior to setting the thermostat, it is neccessary to complete all required settings described in this section.
1. Factory default settings
Contacts: Volt Free
Temperature indicator: °C
Switching dierential: 0.4°C
In built frost protection: 5°C
High and Low temp. limitation: O
Blue backlight activated : for 10 secs after any button is pressed
Clock: 24 hours
Keypad lock: O
5. Wiring diagram
INTERNAL WIRING DIAGRAM CRTP
If mains voltage output is required, 230V must be connected to terminal 2.
6. Frost protection
Operating Instructions
CAUTION!
Before commencing any work on the electrical
connections, you must rst disconnect the thermostat
from the mains. None of the 230V connections must be
live until the installation has been completed and the
housing is closed. Only qualied electricians or authorised
service sta are permitted to open the thermostat.
There are parts that may carry mains voltage behind the
cover. The thermostat must not be left unsupervised
when open. (Prevent non specialists and especially
children from gaining access to it.)
Impor tant: Kee p this document
321
ON OFFCOM
5°C
2. Specications & wiring
Power supply: 2 x AA Alkaline Battery
Power consumption: 8 VA
Temp. control range: 5 ... 35°C
Ambient temperature: 0 ... 50°C
Contact rating: 8A 230Vac
Dimensions: 84 x 84 x 30mm
Temperature sensor: NTC 10K Ohm @ 25°C
Switching dierential: Adjustable from 0.2/0.4/0.6/0.8/1.0˚C
Frost protection: Only operational in stand by mode
3. Mounting
The mounting height should be 1.5 meters above the oor level.
The thermostat should be wall mounted in the room where the heating is to
be controlled.
The place of installation should be chosen so that the sensor can measure the
room temperature as accurately as possible.
Choose the mounting location to prevent direct exposure to sunlight or other
heating / cooling sources when mounted.
The unit can be tted to: 1. Recessed conduit boxes
2. Surface mounting boxes
3. Directly on walls.
4. Installation
Frost protection is built into this thermostat, it is pre xed at 5°C and is not
adjustable.
It will only be activated when the thermostat is in the stand by mode and
the room temperature reaches 5°C.
7. Button / Symbol description
Keypad lock symbol
Heating ON symbol
Current programme
Day of the week
Program
P3
On / Standby symbol
Next button
Hold button
On / Standby button
Set button
Reset button
Set point increase
Set point decrease
Slacken the fastening screw on the bottom of the thermostat with a philips
head screwdriver.
The thermostat is hinged and can be opened 180 degrees.
Mount the unit as described in section 3.
Wire the thermostat according to the wiring diagram.
Close the thermostat and tighten the fastening screw.
EPH Controls Ireland
sales@ephcontrols.com www.ephcontrols.com
8. Resetting the thermostat
It is necessary to reset the thermostat prior to initial use.
Press and hold the button for 5 seconds.
dEL will appear on the screen.
Press the button on the side of the thermostat.
EPH Controls UK
sales@ephcontrols.co.uk www.ephcontrols.co.uk
Set
RESET
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CRTP Room Thermostat Battery Operated
9. Keypad lock and unlock
OFF
To lock the keypad, press and hold the and buttons for 5 seconds.
will appear on the screen. The keypad is now locked.
To unlock the keypad, press and hold the and buttons for 5 seconds.
will disappear from the screen. The keypad is now unlocked.
10. High and Low temperature limitation
It is possible to limit the High and Low temperature setpoints in this
thermostat.
Temperature setpoints in temporary override, permanent override and the
programmed setpoints will be limited within the High and low limit setpoints.
The High temperature limit is preset at 25˚C and cannot be adjusted.
The Low temperature limit is preset at 15˚C and cannot be adjusted.
To activate High and Low temperature limitation.
Press and hold the and buttons for 10 seconds.
“Limit OFF” will appear on the screen.
Press the button to select “Limit ON” mode.
Press the button and the thermostat is ready for operation.
Set
“Limit” will appear on the screen.
Set
OFF
13. Adjusting the program settings
Press the button twice.
Programming for Monday to Friday is now selected.
Press the and buttons to adjust the P1 time. Press the ‘Next’ button.
Press the and buttons to adjust the P1 temp. Press the ‘Next’ button.
Repeat this process to adjust P2 to P6 times and temperatures.
Press the button.
Programming for Saturday is now selected.
Press the and buttons to adjust the P1 time. Press the ‘Next’ button.
Press the and buttons to adjust the P1 temp. Press the ‘Next’ button.
Repeat this process to adjust P2 to P6 times and temperatures.
Press the button.
Programming for Sunday is now selected.
Press the and buttons to adjust the P1 time. Press the ‘Next’ button.
Press the and buttons to adjust the P1 temp. Press the ‘Next’ button.
Repeat this process to adjust P2 to P6 times and temperatures.
Press the button.
Operating Instructions
Set
Set
Set
Set
To deactivate High and Low temperature limitation.
Press and hold the and buttons for 10 seconds.
Set
“Limit ON” will appear on the screen.
Press the button to deactivate this function.
“Limit OFF” will appear on the screen.
Press the button and the thermostat is ready for operation.
Set
11. Setting the date and time
Press the button once, ‘Set Date Year’ will appear on the screen.
Press the and buttons to adjust the year. Press the ‘Next’ button.
Press the and buttons to adjust the month. Press the ‘Next’ button.
Press the and buttons to adjust the day. Press the ‘Next’ button.
Press the and buttons to adjust the hour. Press the ‘Next’ button.
Press the and buttons to adjust the minute. Press the ‘Next’ button.
After 10 seconds the thermostat will return to normal operation.
Set
12. Factory default setting 5d/ 1d/ 1d
Default
Mon-Fri
˚C
Saturday
˚C
Sunday
˚C
P1 P2 P3 P4 P5 P6
6:30
21 16 21 16 21 16
6:30
21 16 21 16 21 16
6:30
21 16 21 16 21 16
8:30
8:30
8:30
12:00
12:00
12:00
12:00
12:00
12:00
16:30
16:30
16:30
22:30
22:30
22:30
The thermostat switching dierential is now selected.
Press the and buttons to adjust the dierential from 0.2 ... 1˚C.
Press the button to return to normal operation.
Set
14. Temporary override (Manual)
Press the and buttons to adjust the temperature setpoint.
‘Manual’ will appear on the screen.
After 10 seconds the thermostat will operate in this temporary override.
Press the button to return to automatic mode.
Set
15. Permanent override (Hold)
Press the button.
‘Hold’ will appear on the screen.
Press the and buttons to adjust the temperature setpoint.
After 10 seconds the thermostat will operate in this permanent override.
Press the button to return to automatic mode.
Hold
Hold
16. Replacing the batteries
Slacken the fastening screw on the bottom of
the thermostat with a philips head screwdriver.
The thermostat is hinged and can be opened
180 degrees.
Replace the batteries with 2 x AA Alkaline
batteries.
Close the thermostat and tighten
the fastening screw.
EPH Controls Ireland
sales@ephcontrols.com www.ephcontrols.com
EPH Controls UK
sales@ephcontrols.co.uk www.ephcontrols.co.uk
20180628_CRTP_OpIns_JW
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