CAUTION!
The thermostat must not be left unsupervised
when open. (Prevent non specialists and especially
children from gaining access to it.)
the manufacturer, its safety may be impaired.
Operating Instructions
Page 1 of 4
4. Installation
1. Factory default settings
How your cylinder thermostat works
5. Frost protection
Temperature indicator:
°C
In built frost protection:
5°C - Not adjustable
Clock:
24 hours
Operating mode:
5/2 day
Default temperature setpoint: 60˚C
5°C
Contents
1. Factory default settings
3. Mounting
4. Installation
5. Frost protection
6. LCD symbol / buttons description
7. Resetting the thermostat
8. Keypad lock and unlock
9. Setting the date, time and operating mode
10. Factory program settings
11. Adjusting the program settings for 5/2d
12. Copy Function
13. Adjusting the temperature setpoint
14. Permanent override
15. Boost function
16. Holiday function
17. To connect the RFRP-HW-OT thermostat to an RF1A-OT receiver
18. To disconnect the RFRP-HW-OT thermostat from an RF1A-OT receiver
19. Backlight mode selection
20. Battery low warning
21. Replacing the batteries
22. Installer Menu (without OpenTherm® connected)
Prior to setting the thermostat, it is neccessary to
complete all required settings described in this section.
RFRP-HW-OT
Cylinder Thermostat
Wireless
Important: Keep this document
Power supply:
2 x AA Alkaline Battery
Power consumption:
2 mW
Battery replacement:
Once a year
Temp. control range:
6 ... 90°C
Ambient temperature:
0 ... 45°C
Dimensions:
130 x 99 x 25mm
Temperature sensor:
NTC 100K Ohm @ 25°C
Temperature indication:
˚C
Frost protection:
Only operational in OFF mode
Pollution degree:
Pollution degree 2
When the thermostat is in the AUTO mode, it will operate according to the
program.
During this time the thermostat will remain on until the temperature setpoint
is reached.
There is only one temperature setpoint which is applied to all programs. The
default temperature setpoint is 60°C.
Frost protection is built into this thermostat.
It will only be activated when the thermostat is in the OFF mode and the
room temperature falls below 5°C.
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.
3a Mounting of temperature sensor
3b Mounting of thermostat
The thermostat should be mounted in a position that will make reading
the display conventient.
ON CYLINDER:
To ensure accurate control of your cylinder, the
temperature sensor should be mounted on the bottom 1/3 of the cylinder.
It is essential that the sensing element is in direct contact with the
cylinder and that there is no insulation between it and the cylinder. 60°C is
the temperature level required in order to prevent the build up of
using the provided foil tape.
ON PIPEWORK:
To ensure accurate control, the temperature sensor should
be mounted on the pipework as tightly as possible. It is essential that the
sensing element is in direct contact with the pipework and that there is no
insulation between it and the pipework. The temperature sensor can be
20221005_RFRP-HW-OT_OpIns_PK
EPH Controls Ireland
[email protected] www.ephcontrols.com
EPH Controls UK
[email protected] www.ephcontrols.co.uk
