CAUTION!
Before commencing any work on the electrical
connections, you must first 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 qualified electricians or authorised
service staff 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
CRTP2 Room Thermostat
Battery Operated
4. Installation
1. Factory default settings
7. Button / Symbol description
6. Frost protection
2. Specifications & wiring
Contacts:
Volt
Free
Temperature indicator:
°C
Switching differential:
0.4°C
In built frost protection:
5°C
High and Low temp. limitation: Off
Clock:
24 hours
Keypad lock:
Off
5°C
Reset button
Set point increase
Set point decrease
Hold button
On / Standby button
Set button
OK button
On / Standby symbol
Keypad lock symbol
Heating ON symbol
Current programme
Day of the week
Program
P3
ON COM
3
2
1
3. Mounting
Contents
1. Factory default settings
2. Specification & 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. Setting the date, time and operating mode
11. Factory default program settings
12. Adjusting the program settings for 5/2d
13. Temporary override (Manual)
14. Permanent override (Hold)
15. Adjusting the switching differential
16. Replacing the batteries
17. Installer Menu
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 differential:
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.
The mounting height should be 1.5 meters above the floor 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 fitted 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 CRTP2
Frost protection is built into this thermostat, it is pre fixed 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.
EPH Controls Ireland
[email protected] www.ephcontrols.com
EPH Controls UK
[email protected] www.ephcontrols.co.uk
20191015_CRTP2_OpIns_JW
