EPH CRTP User manual

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 qualied 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.)
Operating Instructions
Page 1 of 3
CRTP Room Thermostat Battery Operated
4. Installation
1. Factory default settings
8. Resetting the thermostat
7. Button / Symbol description
6. Frost protection
2. Specications & wiring
Contacts: Volt Free
Temperature indicator: °C
Switching dierential: 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°C
Reset button
Set point increase
Set point decrease
Hold button
On / Standby button
Set button
Next button
On / Standby symbol
Keypad lock symbol
Heating ON symbol
Current programme
Day of the week
Program
P3
3. Mounting
Contents
1. Factory default settings
2. Specication & 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.
5. Wiring diagram
Important: Keep this document
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 dierential: Adjustable from 0.2/0.4/0.6/0.8/1.0˚C
Frost protection: Only operational in stand by mode
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.
20170403_AW1077_CRTP_OpIns_JW
EPH Controls Ireland
Sitecast Industrial Estate, Pouladu,
Cork, T12 W665, Ireland
[e-mail] www.ephcontrols.com
EPH Controls UK
Unit E4, Welland Business Park, Valley Way, Market Harborough,
Leicestershire, LE16 7PS, United Kingdom
[e-mail] www.ephcontrols.co.uk
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.
If mains voltage output is required, 230V must be connected to terminal 2.
INTERNAL WIRING DIAGRAM CRTP 321
ON OFFCOM
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.
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.
RESET
Set

Operating Instructions
Page 2 of 3
CRTP Room Thermostat Battery Operated
9. Keypad lock and unlock
12. Factory default setting 5d/ 1d/ 1d
OFF
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
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.
The thermostat switching dierential is now selected.
Press the and buttons to adjust the dierential from 0.2 ... 1˚C.
Press the button to return to normal operation.
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.
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.
Set
Set
Set
Set
Set
Set
14. Temporary override (Manual)
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.
15. Permanent override (Hold)
16. Replacing the batteries
10. High and Low temperature limitation OFF
Set
Set
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.
“Limit” will appear on the screen.
To deactivate High and Low temperature limitation.
Press and hold the and buttons for 10 seconds.
“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.
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.
Set
Set
Mon-Fri
Default
˚C
Saturday
˚C
P1 P2 P3 P4 P5 P6
6:30 8:30 12:00 12:00 16:30 22:30
21 16 21 16 21 16
6:30 8:30 12:00 12:00 16:30 22:30
21 16 21 16 21 16
Sunday
˚C
6:30 8:30 12:00 12:00 16:30 22:30
21 16 21 16 21 16
Hold
Hold
EPH Controls Ireland
Sitecast Industrial Estate, Pouladu,
Cork, T12 W665, Ireland
[e-mail] www.ephcontrols.com
EPH Controls UK
Unit E4, Welland Business Park, Valley Way, Market Harborough,
Leicestershire, LE16 7PS, United Kingdom
[e-mail] www.ephcontrols.co.uk
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.
20170403_AW1077_CRTP_OpIns_JW