EPH Controls CRTP2 Operating instructions

Installation and Operation Guide
Room Thermostat
CRTP2

3
Factory Default Settings
4
Specications
5
LCD Display
6
Buttons
7
Wiring
8
Mounting & Installation
11
Replacing the Batteries
14
Backlight
15
Mode Selection
13
Adjusting the Target Temperature
13
Locking the Keypad
Table of contents
Installation Instructions
Operating Instructions
16
Setting the Date, Time and Programming Mode
16
Holiday Mode
17
How your Programmable Thermostat works
18
Factory Program Setting
19
Programming Modes

25
Optimum Start Control (OS)
23
Menu Function P0 1 Operating Mode
24
Normal Mode (Nor)
27
Time Proportional Integral Mode (TPI)
30
P0 2 Setting High & Low Limits
31
P0 3 Hysteresis HOn & HOFF
21
Temporary Override / Permanent Override
32
P0 4 Calibrate
22
Boost Function
33
Resetting the Thermostat
20
Adjust the Program Setting in 5/2 Day Mode

Installation Instructions
Battery operated programmable Room Thermostat

3
EPH Controls Ltd.
Factory Default Settings
High and Low Temp. limitation: O
Keypad lock: O
Operating mode: Normal
Temperature indicator: ˚C
Frost protection: On (5˚C)
HYS On: 0.4˚C
HYS OFF: 0.0˚C
Daylight Saving Time (DST): On
Note:
Frost protection is built into this thermostat.
It will only be activated when the thermostat is in OFF position and the temperature
reaches 5˚C.

4CRTP2
Specications
Contacts: Volt Free
Power supply / Input: 2 x AA Alkaline batteries
Power consumption: Operating 30mW
Standby <0.5mW
Temperature range: 5…35˚C
Ambient temperature: 0…45˚C
Ambient admissible humidity: 5-95%RH
Contact rating: 8(3)A
Dimensions: 91 x 91 x 26mm
Internal Temperature sensor: NTC 100K
Backlight: White
IP rating: IP20
Pollution degree: 2
Hysteresis (Switching dierential): Adjustable from 0 to 1°C
0.1°C increments
Automatic action: 1C

5
EPH Controls Ltd.
LCD Display
[1]
[8]
[9][11] [9]
[3]
[4]
[2]
[5]
[6]
[7]
[13]
[12]
[10]
MonSet room temp Tue Wed Thu Fri sat sun
holiday to from auto off man hi lo limit
[1] Displays when setting target temperature.
[2] Displays current room temperature.
[3] Displays current day of the week.
[4] Displays when batteries need to be replaced.
[5] Displays current / target temperature.
[6] Displays when the thermostat is calling for heat.
[7] Displays when keypad is locked.
[8] Displays when setting HIGH and LOW temperature limit.
[9] Displays current time and date.
[10] Displays current operating mode.
[11] Displays when setting
holiday mode.
[12] Displays when
thermostat is in
boost mode.
[13] Displays current
time program.

6CRTP2
Buttons
OK Button
Time
Button
+1h
Button
Down
Button
Up
Button
Menu button
Reset button

7
EPH Controls Ltd.
Wiring
OFF
ON
321
COM
Terminal Connections
Terminal 1 OFF - N/C Normally closed connection
Terminal 2 ON - N/O Normally open connection
Terminal 3 COM - Common connection

8CRTP2
Mounting & Installation
Caution!
Installation and connection should only be carried out by a qualied person.
Only qualied electricians or authorised service sta are permitted to open the
thermostat.
If the thermostat is used in a way not specied by the manufacturer, its safety
may be impaired.
Prior to setting the thermostat, it is necessary to complete all required settings
described in this section.
Before commencing installation, the thermostat must be rst disconnected
from the mains.
This thermostat can be mounted in the following ways:
1) Directly mounted on wall
2) To a recessed conduit box
3) To a surface mounting box