EPH Controls CP4 Operation guide
EPH Controls CP4 is a programmable RF thermostat and receiver that offers precise temperature control and energy-saving features for your home. With its user-friendly interface and a wide range of programming options, you can create customized heating schedules that suit your lifestyle. The wireless connection between the thermostat and receiver ensures convenient and flexible placement.
જાહેરાત
જાહેરાત
CP4
Programmable RF Thermostat & Receiver
Installation and Operation Guide
Table of contents
RFRP-OT Room Thermostat
Installation Instructions
Factory Default Settings
Frost Protection
Specifications
How your programmable thermostat works
Mounting & Installation
RF1A Wireless Receiver
Installation Instructions
Specifications & Wiring
Mounting & Installation
RFRP-OT Room Thermostat
Operating Instructions
LCD Symbol Description
Button Description
Resetting the thermostat
Keypad lock and unlock
Setting the date, time and programming mode
Factory Program Setting
8
9
6
7
5
6
12
13
14
16
17
18
19
19
20
21
Programming Modes
Adjust the program setting in 5/2 Day mode
Copy Function
Temporary Override
Permanent Override
Boost Function
Holiday Function
Battery low warning
Installer menu
PO 1 Operating Mode
Normal
Optimum Start
TPI
PO 2 Setting high & low limits
PO 3 Hysteresis H On and H Off
PO 4 Calibrate the thermostat
PO 5 Frost Protection
PO 6 Exit
34
36
36
37
37
37
29
30
31
31
31
25
26
27
28
28
22
23
24
25
Table of contents
(Continued)
RFRP-OT Room Thermostat (Continued)
Installer menu - OpenTherm
PO 6 Setting DHW temperature
PO 7 OpenTherm® Information
PO 8 DHOP
PO 9 Set OpenTherm® parameters
Exit
Controlling an OpenTherm Boiler with multiple CombiPack 4-OT
System Architecture
RF1A Wireless Receiver
Operating Instructions
Button / LED Description
LED Description
To connect the RFRP-OT thermostat to an RF1A-OT receiver
To disconnect the RFRP-OT thermostat to an RF1A-OT receiver
48
49
50
51
52
38
39
40
40
42
43
46
RFRP-OT Room Thermostat
Installation Instructions
5
6
RFRP-OT Room Thermostat
Temperature indicator:
Switching differential:
In built frost protection:
Clock:
Keypad lock:
Operating mode:
˚C
0.4˚C
5˚C - Not adjustable
24 hours
Off
5/2 day
Frost Protection
5˚C
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 OFF mode and the room temperature falls below 5°C.
RFRP-OT Room Thermostat CP4
Specifications
Power supply: 2 x AA Alkaline Batteries
Power consumption: 2 mW
Battery replacement: Once a year
Temp. control range: 5 … 35˚C
Ambient temperature: 0 … 45˚C
Dimensions: 130 x 99 x 25mm
Temperature sensor: NTC 100K Ohm @ 25˚C
Temperature indication: ˚C
Switching differential: 0.4˚C
Frost protection: Only operational in Off mode
Pollution degree: Pollution degree 2
RFRP-OT Room Thermostat CP4 7
8
How your programmable thermostat works
When the thermostat is in the AUTO mode, it will operate according to the times and temperatures that have been programmed. The user can select from 6 different programs per day - each with a time and a temperature.
There is no OFF time, only a higher and a lower temperature.
If the user wants the thermostat to be OFF at a certain time, set the temperature for this time to be low. The thermostat will turn ON if the room temperature is lower than the setpoint for the current period.
Example: If P1 is set to be 21˚C at 6am, and if P2 is set to be 10˚C at
8am, the thermostat will look for the temperature to be 21˚C between
6am and 8am.
RFRP-OT Room Thermostat CP4
Mounting & Installation
Caution!
Installation and connection should only be carried out by a qualified person.
Only qualified electricians or authorised service staff are permitted to open the thermostat.
If the thermostat is used in a way not specified by the manufacturer, its safety may be impaired.
Prior to setting the thermostat, it is necessary to complete all required settings described in the section.
This thermostat can be mounted in the following ways:
1) Directly mounted on wall
2) Free standing - Stand Included
RFRP-OT Room Thermostat CP4 9
10
Mounting & Installation
(Continued)
1) The mounting height should be 1.5 metres above the floor level.
2) 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.
3) Fix the mounting plate directly to the wall with the screws provided.
4) Attach the thermostat to the mounting plate.
5) Lower the flap at the front of the thermostat. There is a battery compartment located below the buttons. Apply downward pressure to remove the cover.
6) Insert the 2 x AA batteries and the thermostat will turn on.
Close the battery compartment.
RFRP-OT Room Thermostat CP4
1
3
131
5
2
6
4
RFRP-OT Room Thermostat CP4 11
12
RF1A Wireless Receiver
Installation Instructions
RF1A-OT Wireless Receiver CP4
Specifications & Wiring
Power supply:
Contact rating:
200 - 240Vac 50-60Hz
250 Vac 10(3)A
Ambient temperature: 0 … 45˚C
Automatic action: Type 1.C.Q
Appliance classes:
Pollution degree:
Class II appliance
Pollution degree2
IP Rating: IP20
Rated Impulse Voltage: Resistance to voltage surge 2500V as per EN 60730
Internal wiring diagram for RF1A-OT
3 2 1
ON COM OFF
L
L
N
N
O T
O T
* If mains voltage output is required, terminals L & 2 must be electrically linked.
Important: Do not connect Mains
Voltage to OpenTherm® terminals.
MAINS SUPPLY
RF1A-OT Wireless Receiver CP4 13
14
Mounting & Installation
1) The RF1A-OT receiver should be wall mounted in an area within
20 metres distance of the wireless thermostat. It is important that the receiver is mounted more than 1 metre away from metal objects as this will affect communication with the thermostat.
The receiver should be installed at least 1 metre from any electronic devices such as radio, TV, microwave or wireless network adaptor.
2) Slacken the fastening screw on the bottom of the receiver with a philips screwdriver. The receiver is hinged and can be opened 180
degrees.
3) Screw the receiver to the wall with the screws provided.
4) Remove the protective cover on the terminal block.
5) Insert wires into terminal block in accordance with the wiring
diagram.
6) Close the cover and tighten the fastening screw.
RF1A-OT Wireless Receiver CP4
1
3
5
2
4
6
RF1A-OT Wireless Receiver CP4 15
16
RFRP-OT Room Thermostat
Operating Instructions
RFRP-OT Room Thermostat CP4
LCD Symbol Description
Current program
Day of the week
Temperature
Day / Month
Current Time
(Boost to time)
Battery low symbol
Wireless symbol
Heating on symbol
Keypad lock symbol
Operating mode
RFRP-OT Room Thermostat CP4 17
Button Description
18
Automatic mode
(Back)
Manual mode
Off mode
Program mode Set Date/ Time
AUTO
MAN
Automatic mode
Manual mode
OFF
PROG
Off mode
Program mode
TIME
HOL
Set Date / Time
Holiday mode
COPY
Copy function
BOOST
Boost mode
RFRP-OT Room Thermostat
Set point increase
Wireless connect button
Set point decrease
Reset button
OK confirm button
Boost mode
Copy function
Holiday mode
OK
Set point increase
Set point decrease
Confirm button
Reset button
CP4
RFRP-OT Room Thermostat
Press the button on the side of the thermostat.
‘rst no’ will appear on the screen.
Press the button.
‘rst yes’ will appear on the screen.
Press the OK button to reset the thermostat.
Keypad lock and unlock
OFF
To lock the keypad, press and hold the and buttons for 10 seconds.
will appear on the screen. The keypad is now locked.
To unlock the keypad, press and hold the and buttons for 10 seconds.
will disappear from the screen. The keypad is now unlocked.
RFRP-OT Room Thermostat CP4 19
20
Setting the date, time and programming mode
Press the
TIME
button once, the year will begin flashing.
Press the or buttons to adjust the year. Press OK .
Press the or buttons to adjust the month. Press
OK
.
Press the or buttons to adjust the day. Press
OK
.
Press the or buttons to adjust the hour. Press OK .
Press the or buttons to adjust the minute. Press OK .
Press the or buttons to adjust from 5/2d to 7d or 24h mode.
Press the or buttons to turn DST (Day Light Saving time) On or Off.
Press the
AUTO
button or wait 5 seconds and the thermostat will return to normal operation.
RFRP-OT Room Thermostat CP4
Factory Program Setting
Mon-Fri
Sat-Sun
Mon-Fri
Sat-Sun
Everyday
P1
06:30
21˚C
08:00
21˚C
P1
06:30
21˚C
08:00
21˚C
P1
06:30
21˚C
P2
08:00
10˚C
10:00
10˚C
5/2 Day
P3
12:00
10˚C
12:00
10˚C
P2
08:00
10˚C
10:00
10˚C
7 Day
P3
12:00
10˚C
12:00
10˚C
P2
08:00
10˚C
24 Hour
P3
12:00
10˚C
P4
14:00
10˚C
14:00
10˚C
P4
14:00
10˚C
14:00
10˚C
P4
14:00
10˚C
5/2d
P5
17:30
21˚C
17:30
21˚C
P5
17:30
21˚C
17:30
21˚C
P5
17:30
21˚C
P6
22:00
10˚C
23:00
10˚C
P6
22:00
10˚C
23:00
10˚C
P6
22:00
10˚C
RFRP-OT Room Thermostat CP4 21
22
Programming Modes
The RFRP-OT Room Thermostat has the following programming modes available:
5/2 Day mode Programing Monday to Friday as one block and
Saturday and Sunday as a 2nd block.
Each block can have 6 different times and
temperatures.
7 Day mode
24 Hour mode
Programming all 7 days individually with different times and temperatures.
Programming all 7 days as one block with the same time and temperatures.
If 7 D mode is selected, you can program each day of the week with 6 individual times and temperatures.
If 24H mode is selected, you can only program each day of the week with the same 6 times and temperatures.
RFRP-OT Room Thermostat CP4
Adjust the program setting in 5/2 Day mode
Press the
PROG
button once.
Programming for Monday to Friday is now selected.
Press the or buttons to adjust the P1 time.
Press the or buttons to adjust the P1 temp.
Press
OK
.
Press
OK
Repeat this process to adjust P2 to P6 times and temperatures. Press
OK
.
.
Programming for Saturday to Sunday is now selected.
Press the or buttons to adjust the P1 time.
Press the or buttons to adjust the P1 temp.
Repeat this process to adjust P2 to P6 times and temperatures.
Press
OK
.
Press
OK
.
Press the
AUTO
button to return to automatic mode.
While in PROG Mode pressing the without changing the temperature.
PROG
button will jump from P1-P2 etc
While in PROG Mode pressing the
(block of days).
TIME
button will jump to the next day
RFRP-OT Room Thermostat CP4 23
24
Copy Function
Copy function may only be used if the thermostat is in the 7d mode.
Set the times and temperatures for the day that you wish to copy from in programming mode.
When still on the day press the
COPY
button.
The day of the week that you have selected will be shown with ‘COPY’ below it.
The next day will begin to flash on the top of the screen.
Press the button to copy the times and temperatures to that day.
Press the button to skip a day.
You can copy to multiple days using the button.
Press the OK button when copying has been completed.
RFRP-OT Room Thermostat CP4
Temporary Override
When in AUTO mode, press the or buttons to adjust the temperature setpoint. ‘OvEr’ will appear on the screen.
Press
OK
or after 5 seconds the thermostat will operate in this temperature, until the next switching time.
To cancel temporary override, press the
OFF
buttton and then press the
AUTO
button to return to the automatic mode.
Permanent Override
Press the
MAN
button to enter the manual mode (Permanent Override),
‘MAN’ will appear on the screen.
Press the or buttons to adjust the temperature setpoint.
Press
OK
or after 5 seconds the thermostat will operate in this permanent override.
To cancel permanent override, press the
OFF
buttton and then press the
AUTO
button to return to the automatic mode.
RFRP-OT Room Thermostat CP4 25
26
Boost Function
The thermostat can be boosted to a specific temperature for 30mins, 1,
2 or 3 hours while the thermostat is operating in all modes except for holiday mode.
Press the
BOOST
button 1, 2, 3 or 4 times, the time that the boost will be activated to will flash on the screen.
If you do not press any other button the boost will activate to the temperature displayed on the screen after 5 seconds.
If you press the
OK
button the temperature will now flash. You can edit the temperature if you press the or buttons.
Press the OK button or wait for 5 seconds for the boost to activate.
‘ BOOST TO ’ will now be displayed on the screen with the time that it is activated to displayed above this text.
Press the
BOOST
button again to deactivate the boost.
RFRP-OT Room Thermostat CP4
Holiday Function
This will switch your heating system off between the start and end times you select .
Press the
HOL
button, ‘ HOLIDAY FROM ’ will appear on screen.
Press the or buttons to adjust the year. Press
OK
.
Press the or buttons to adjust the month. Press
OK
.
Press the
Press the
or
or
buttons to adjust the day.
buttons to adjust the hour.
‘ HOLIDAY TO ’ will appear on screen.
Press the or buttons to adjust the day.
Press OK .
Press OK .
Press
OK
.
Press the or buttons to adjust the month.
Press the or buttons to adjust the year.
Press OK .
Press OK .
Press the or buttons to adjust the hour. Press
OK
.
The thermostat will now return to the mode it was in before the Holiday settings were entered. To cancel Holiday mode, press the
HOL
button.
RFRP-OT Room Thermostat CP4 27
28
Backlight mode selection
AUTO
There are two settings for selection. The factory default setting is AUTO.
OFF The backlight is permanently OFF.
AUTO On pressing any button the backlight stays on for 5 seconds.
To adjust the backlight setting, lower the cover on the front of the unit.
Press the OK button for 5 seconds.
Press either the or buttons to select the OFF or AUTO mode.
Press the
OK
button.
Battery low warning
When the batteries are almost empty, the symbol will appear on the screen.
The batteries must now be replaced or the unit will shut down.
RFRP-OT Room Thermostat CP4
Replacing the batteries
Lower the flap at the front of the thermostat.
There is a battery compartment located below the buttons.
Apply downward pressure to remove the cover.
Insert the 2 x AA batteries and the thermostat will turn on.
Close the battery compartment.
RFRP-OT Room Thermostat CP4 29
30
Installer menu
To access the installer menu, you must hold Prog and OK for 5 seconds.
When in the installer menu, press , and
OK to navigate and select.
Use
AUTO
,
MAN
or
OFF
to go back a step.
P0 1: Mode (Normal / Optimum Start / TPI)
P0 2: Hi Lo (limiting the thermostat)
P0 3: Hysteresis (differential)
P0 4: Calibration
P0 5: Frost Protection
P0 6: Exit
Installer menu OpenTherm® Instructions
P0 6: Setting DHW temperature
P0 7: OpenTherm® Information
P0 8: DHOP
P0 9: Set OpenTherm® Parameters
Exit
RFRP-OT Room Thermostat CP4
PO 1 Operating Mode
(Normal / Optimum Start / TPI)
Nor (Normal Mode)
When the thermostat is in Normal mode, the thermostat will try to reach the target temperature after the program changes.
Example: Program 1 on the thermostat is 21°C for 06:30am and the room temperature is 18°C. The thermostat will start the heating at
06:30am and the room temperature will start to increase then.
OS (Optimum Start Mode) Boiler Plus
When the thermostat is in Optimum Start mode, the thermostat will try to reach the target temperature by the start time of the next switching time. This is done by setting the Ti (time interval) on the thermostat in this menu to 10, 15, 20, 25 or 30. This will allow the thermostat 10, 15,
20, 25 or 30 minutes to increase the room temperature by 1°C.
Ti can be set when OS is selected in the installer menu. 20˚C
RFRP-OT Room Thermostat CP4 31
32
PO 1 Operating Mode
(Normal / Optimum Start / TPI)
OS (Optimum Start Mode) Boiler Plus (Continued)
To achieve the target temperature when the program starts, the thermostat will read:
1. The Room Temperature (RT)
2. The Setpoint Temperature (ST)
3. The Target Temperature Difference (TTD) is the difference
between the setpoint temperature and the room temperature .
The time (in minutes) that it will take to overcome (TTD) is called
Optimum Start Time (OST) and its maximum value is 3 hours = 180 mins. This is subtracted from the start time.
As the temperature increases the thermostat will recalculate the OST if the temperature is increasing too quickly.
RFRP-OT Room Thermostat CP4
Optimum Start Control Graph with Ti = 20
0
20
40
60
80
100
120
140
160
180
9 8 7 6 5 4 3 2 1
Target Temperature Difference ˚C
TTD
Example when Ti = 20
Program 1 on the thermostat is 21°C for
06:30am and the room temperature is 18°C.
The thermostat will start the heating at
05:30am to reach 21°C for 06:30am @ Ti=20.
Example when Ti = 10
Program 1 on the thermostat is 21°C for
06:30am and the room temperature is 18°C.
The thermostat will start the heating at
06:00am to reach 21°C for 06:30am @ Ti=10.
Optimum Start Control Graph with Ti = 15
0
15
30
45
60
105
120
135
75
90
9 8 7 6 5 4 3 2 1
Target Temperature Difference ˚C
TTD
Optimum Start Control Graph with Ti = 10
0
10
20
30
40
50
60
70
80
90
9 8 7 6 5 4 3 2 1
Target Temperature Difference ˚C
TTD
RFRP-OT Room Thermostat CP4 33
34
PO 1 Operating Mode (Normal / Optimum Start / TPI)
TPI (Time Proportional & Integral Mode)
When the thermostat is in TPI mode and the temperature is rising in the zone and falls into the Proportional Bandwidth section, TPI will start to affect the thermostats operation. The thermostat will turn on and off as it gains heat so that it doesn’t overshoot the setpoint by too much. It will also turn on if the temperature is falling so it doesn’t undershoot the setpoint which will leave the user with a more comfortable level of heat.
There are 2 settings that will affect the thermostats operation:
1. CYC - No. of Heating Cycles per
Hour: 6 Cycles
This value will decide how often the thermostat will cycle the heating on and off when trying to achieve the setpoint temperature.
You can select 2/3/6 or 12.
2. Pb - Proportional Bandwidth:
2˚C
This value refers to the temperature below the setpoint at which the thermostat will start to operate in TPI Control. You can set this temperature from 1.5˚C to
3.0˚C in 0.1˚C increments.
RFRP-OT Room Thermostat CP4
TPI Control
Temp
22˚C
21˚C
20˚C
19˚C
18˚C
17˚C
Setpoint Temperature
Proportional Bandwidth
0
Heating On
20 40 60 80
Heating Off
100 Time Minutes
Example: Program 1 on the thermostat is 21°C for 06:30am and the room temperature is 18°C. The thermostat will start the heating at 06:30am and the room temperature will start to increase then but will switch itself off before it reaches temperature and allow the room temperature to increase naturally – this cycle may begin again if the thermostat isn’t reaching temperature.
RFRP-OT Room Thermostat CP4 35
36
PO 2 Setting high & low limits
Hi 35˚C and Lo 5˚C
This menu allows the installer to change the min. and max. temperature range that the thermostat can be set at.
PO 3 Hysteresis HOn and HOFF
This menu allows the installer to change the switching differential of the thermostat when the temperature is rising and falling.
HOn is the fall in temperature – Default – 0.4°C. This will allow a fall of
0.4°C from the setpoint before the thermostat turns on again.
HOFF is the rise in temperature – Default – 0.0°C. This will allow the temperature to rise 0°C above its setpoint.
RFRP-OT Room Thermostat CP4
PO 4 Calibrate the thermostat
This menu allows the installer to re-calibrate the thermostat. The current temperature will be displayed on the screen and can be adjusted by pressing the or buttons .
PO 5 Frost Protection
5˚C
This menu allows the installer to activate or de-activate frost protection.
When frost protection is activated the thermostat will switch on the boiler when the temperature drops below 5˚C.
PO 6 Exit
This menu allows the installer to return to the main interface.
It is also possible to exit the installer menu by pressing
AUTO
,
MAN
or
OFF whilst in the installer menu.
RFRP-OT Room Thermostat CP4 37
PO 6 Setting DHW temperature
This menu allows the installer to change the DHW temperature of the boiler. The temperature can be set in 0.5°C increments by pressing the
or buttons.
Press the
OK button to select the desired temperature.
This menu is only available when the thermostat is connected to
OpenTherm® and DHOP is ON (P08 OT installer menu).
38 RFRP-OT OpenTherm® Instructions
PO 7 OpenTherm® Information
This menu allows the installer to view information received from the
OpenTherm® boiler. It may take a few seconds to load information relating to each parameter. The information that can be shown from the boiler is outlined in the table below.
Displayed on screen Description tSEt Target water temp tFLO trEt
Outlet water temp
Return water temp tdH tFLU tESt nOdU
DHW temperature
Flue gas temperature
Outdoor temperature
Modulation percentage
Remark
This is only visible if DHOP is On (P08 OT Installer menu)
Dependent on boiler
Dependent on boiler
FLOr
PrES
Water flow
Water pressure
This is only visible if DHOP is On (P08 OT Installer menu)
Dependent on boiler
RFRP-OT OpenTherm® Instructions 39
40
PO 8 DHOP
This menu allows the installer to activate or deactivate DHW target temperature control from the thermostat. This menu is only available when the thermostat is connected to OpenTherm®
PO 9 Set OpenTherm® Parameters
This menu allows the installer to configure the OpenTherm® parameters.
To access the menu please enter the password “08” with the or buttons.
Press
OK
to confirm.
The parameters that can be set are outlined in the table below.
RFRP-OT OpenTherm® Instructions
Param
HHCH t-1
LLCH t-2
CLI t-3
InFL t-4
HHbO t-5
Exit
Description
Maximum set point heating
Minimum set point heating
This allows user to select different climatic curves for weather compensation. This only applies to Boilers with an outside sensor connected.
Influence of room sensor on modulation of the boiler. Recommended value is 10.
This is the target setpoint for your CH flow temperature.
Note: this value must be within the range of HHCH and LLCH.
Range
45 - 85˚C
10 - HHCH˚C
0.2 - 3.0
0 - 20
HHCH Max
>=ID57
>=LLCH Min
Press OK button to turn back to main interface.
Default
85˚C
45˚C
1.2
10
85˚C
RFRP-OT OpenTherm® Instructions 41
42
PO 9 Set OpenTherm® parameters
Climatic Curve
100
3
80
60
40
20
20 16 12 8 4 0 -4 -8
2.5
-12
2
-16
1.5
1.2
1
0.8
0.6
0.4
0.2
Exit
This menu allows the installer to return to the main interface.
It is also possible to exit the installer menu by pressing AUTO, MAN or
OFF whilst in the installer menu.
RFRP-OT OpenTherm® Instructions
Controlling an OpenTherm® Boiler with multiple CombiPack4-OT
It is possible to have 6 CombiPack4-OT controlling 1 OpenTherm® boiler.
To do this it is necessary to make one of the RF1A-OT receivers into a
Hub Receiver. This Hub Receiver will receive data from all of the RFRP-OT thermostats and relay this information to the boiler via OpenTherm®.
Note: The Hub Receiver should have a wired OpenTherm® connection to the boiler.
Making your RF1A-OT receiver into a Hub Receiver
1. Press the Reset button on the receiver that you wish to make
the Hub Receiver – Red and Green lights are both solid.
2. Immediately press and hold the and buttons for 5
Connect
seconds, the red light will start blinking.
3. Press the button and the Green light will be solid – this is now
Connect
the hub receiver.
4. Press the button to exit to the normal interface.
RFRP-OT OpenTherm® Instructions 43
44
Controlling an OpenTherm® Boiler with multiple CombiPack4-OT
(Continued)
Identifying if a receiver is a Hub Receiver
1. Press the
Connect
button.
2. The Hub receiver will flash Green and Red.
3. The Normal receiver will just flash Red.
4. To exit to main interface press the button.
Pairing the RF1A-OT receivers together
1. Press the button on the Hub receiver. Red and Green lights will
Connect
begin to flash.
2. Press the button on the next receiver to be paired. The Red light
Connect
will flash 3 times and then stop.
3. Repeat this process to pair more, up to a maximum of 6 receivers.
Once all units have been paired, allow time for the receivers to begin to communicate and receive OpenTherm® information from the boiler.
This may take approximately 2 – 5 minutes.
RFRP-OT OpenTherm® Instructions
You will see the red light flash on the Hub receiver and see a corresponding flash on the other receivers paired to the Hub Receiver when they are sharing information.
You may need to pair the receivers to the thermostats again.
If so, please refer to page 51.
You can tell if your thermostat is receiving OpenTherm® information from the boiler by entering the installer menu of the thermostat (Hold
Prog and OK buttons for 10 Sec) and go to P07 - Info.
If the installer menu is only showing P01 – P05, the thermostat and/or receiver has not been successfully paired.
Disconnecting the RF1A-OT receiver from Thermostats & other Receivers
1. Press
Connect
on the Receiver – the red light will flash (red and green
light if using a hub receiver)
2. Press and hold
Connect
flashing.
for about 10sec and the receiver will then stop
3. The RF connection is now cleared.
RFRP-OT OpenTherm® Instructions 45
System architecture
Example A 1 no. Thermostat controlling OT Boiler
RFRP-OT Thermostat RF1A-OT Receiver OpenTherm® Boiler
46
Example B 3 no. Thermostats controlling OT Boiler >>
Note: A maximum of 6 thermostats can be used in the system.
RFRP-OT OpenTherm® Instructions
RFRP-OT Thermostat RFRP-OT Thermostat RFRP-OT Thermostat
RF1A-OT Receiver RF1A-OT Hub Receiver RF1A-OT Receiver
Motorised Valve Motorised Valve Motorised Valve
OT
Auxiliary switch wire from motorised valve
OpenTherm® Boiler
RFRP-OT OpenTherm® Instructions 47
48
RF1A Wireless Receiver
Operating Instructions
RF1A-OT Wireless Receiver CP4
Button / LED Description
Wireless
Connect button
Manual override
System ON
(Green LED)
Reset button
Wireless connect indicator (Red LED)
Manual override
Reset button
Press to reset the
receiver
Connect
Wireless connect:
Once voltage has been applied this button may be pressed to initialise the pairing process with the wireless thermostat. Once pressed the red and green LED will begin to flash.
RF1A-OT Wireless Receiver CP4 49
50
LED Description
OT Connection Normal Operation Green LED
RF1A-OT On ON
RF1A-OT Off OFF
OT Communication Error
RF1A-OT On
RF1A-OT Off
RF Communication Error
RF1A-OT On
RF1A-OT Off
Summary
RF Communication Error
OT Communication Error
Normal Operation RF1A On
Normal Operation RF1A Off
Green LED
Constant Flash
Constant Flash
Green LED
ON
OFF
Green LED
OFF or ON
Constant Flash
ON
OFF
Red LED
OFF - will flash when communicating via RF
ON - will flash when communicating via RF
Red LED
OFF
ON
Red LED
Constant Flash
Constant Flash
Red LED
Constant Flash
OFF or ON
OFF or Flashing
ON or Flashing
RF1A-OT Wireless Receiver CP4
To connect the RFRP-OT thermostat to an RF1A-OT receiver
Please note, If you are installing a CombiPack4 the RFRP-OT thermostat and the RF1A-OT receiver will have a pre-established RF connection so it is not necessary to carry out the RF connection process below.
On the RF1A-OT receiver:
Press the button.
Connect
The red light will begin to flash.
On the RFRP-OT thermostat:
Press the button.
The thermostat will show ‘nOE ’ followed by ‘ --’
Once an RF connection has been established the thermostat will show
‘ r01 ’ on the LCD screen.
Press the OK button to finish the process.
The thermostat is now connected to the RF1A-OT receiver.
CP4 51
52
To disconnect the RFRP-OT thermostat from an RF1A-OT receiver
This can be done from either the thermostat or the receiver.
On the RFRP-OT thermostat:
Press the button. The thermostat will begin to search through the RF channels.
Press and hold the
COPY
button for 10 seconds. ‘ Adr ’ will appear on the screen of the thermostat.
Press the OK button twice to complete the unpairing process. The thermostat RFRP-OT is now disconnected from the receiver RF1A-OT.
On the RF1A receiver:
Press the
Connect button, the red light will flash.
Red & green lights if using as a hub receiver.
Press and hold connect for about 10 seconds, the receiver will then stop flashing.
The RF connection is now cleared.
CP4
Notes
Notes
Notes
EPH Controls IE
www.ephcontrols.com
/contact-us
T +353 21 471 8440
EPH Controls UK
www.ephcontrols.co.uk
/contact-us
T +44 1933 322 072
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