EPH CONTROLS eTRV-HW Smart Cylinder Thermostat User Guide
- August 14, 2024
- EPH CONTROLS
Table of Contents
EPH CONTROLS eTRV-HW Smart Cylinder Thermostat
Specifications
- Product Name: eTRV HW Smart Cylinder Thermostat
- Power Supply: 2 x AA Li-FeS2 Batteries
- Standby Current: [specifications data missing]
Product Information
The eTRV HW Smart Cylinder Thermostat is a versatile device designed to
control the temperature of your heating system efficiently. With various
settings and functions, it offers a user-friendly experience to help you
manage your heating needs effectively.
Installation Instructions
- Mounting & Installation: Follow the steps provided in the manual to securely mount the thermostat.
- Mounting of Temperature Sensor: Ensure proper positioning of the temperature sensor for accurate readings.
Operating Instructions
- Button Description: Familiarize yourself with the buttons and their functions for easy operation.
- Adjusting the Target Temperature: Set your desired temperature using the controls on the thermostat.
- Boost Function: Activate the boost mode for quick heating when needed.
- Changing the Mode: Switch between different modes as per your requirements.
- Replacing the Batteries: When required, replace the batteries following the instructions.
- Error Codes: Refer to the manual for troubleshooting in case of errors.
- Locking and Unlocking: Secure or unlock the thermostat to prevent unauthorized changes.
- Menu Operations: Access different settings and functions through the menu options.
FAQS
Q: What do I do if I encounter an error code on the display?
A: If you see an error code, refer to the manual for troubleshooting
steps. If the issue persists, contact customer support for assistance.
Q: How can I connect the eTRV-HW to the RF16 Controller?
A: Follow the instructions provided in the manual for connecting your
eTRV-HW to the RF16 Controller. Ensure both devices are compatible and within
range for successful pairing.
Factory Default Settings
Keypad lock:
Off
Hon:
5.0°C
Hoff:
0.0°C
Boost temperature:
60°C
Specifications
Power supply:
2 x AA Li-FeS2 Batteries
Standby current:
<50uA
Battery replacement:
240 days approx.*
Temp. control range:
5…90°C
Dimensions:
80 x 52mm
Temperature sensor:
NTC 10K Ohm @ 25°C
Temperature indication:
°C
Ambient temperature:
0…45°C
Ambient admissible humidity: 5-95% RH
Backlight:
White
IP rating:
IP20
Hysteresis (Switching differential): Adjustable from 0 to 10°C
- Based on average estimated usage. Li-FeS2 (Lithium Iron) batteries available from www.ephcontrols.com
rtant Notes
It is extremely important to use good quality batteries in the eTRV-HW to
ensure correct operation of the product. EPH recommend using Li-FeS2 (Lithium
Iron) batteries. If poor quality batteries are used, they may cause the
product to stop communicating wirelessly, fail to communicate information
correctly and stop opening or closing.
Low-power or discount store battery brands should not be used. When the
battery is low, a battery low notification will appear on the eTRV-HW. It will
also display on the EMBER app. The batteries should be changed immediately.
Normally the eTRV-HW will stop operating soon after this notification. When
the eTRV-HW shows a fault E4 the motor is not operating correctly, this is
normally due to a battery issue possibly one or both of the batteries are
not providing adequate power.
The eTRV-HW detects temperature and communicates on cycles every 4 minutes to
conserve battery power.
When buttons are pressed on the eTRV-HW it will save these changes but may not
communicate immediately to the RF16. It will communicate these changes on the
next communication cycle.
How your eTRV-HW works
The eTRV-HW is designed to control and operate a hot water valve wirelessly.
When the eTRV-HW is calling for heat, it will communicate wirelessly to the
RF16 controller which will activate your heating system to heat the hot water.
When the eTRV-HW reaches its defined setpoint temperature it will close the
hot water valve and stop calling for heat.
The temperature setpoint is defined by using the and buttons on the eTRV-HW.
If the hot water temperature is lower than the target temperature then the
eTRV-HW will open the hot water valve and request the boiler to activate. If
the hot water temperature is higher than the set temperature it will close the
hot water valve and signal the system to stop calling for heat.
When calling for heat your eTRV-HW will show a flame symbol on the screen.
This will disappear when the temperature setpoint has been achieved.
When the eTRV-HW is in MANUAL or AUTO, the screen will display the hot water
temperature. When the eTRV-HW is in the OFF mode the screen will display the
word `OFF’.
Mounting & Installation
Caution! If the eTRV-HW is used in a way not specified by the
manufacturer, its safety may be impaired. Prior to setting the eTRV-HW, it is
necessary to complete all
required settings described in the mounting & installation section. Ensure the
valve body is free of dust and debris. Ensure the valve body is dry and not
leaking.
- Press and hold the release mechanism on the side of the eTRV-HW, while holding pull the cover up and it will slide off the eTRV-HW.
- Insert the 2 x AA batteries and replace the cover.
Pair the eTRV-HW to the RF16. (see page 18)
– Mark the eTRV zone by using the stickers provided.
– Note the room name on the 16 zone list provided, this will help the user of the system identify the zones if it’s needed in future. - The eTRV-HW can be mounted to a SEMTRVB22C valve with a M30 x 1.5mm thread.
Rotate the ring at the base of the eTRV-HW so it threads onto the SEMTRVB22C
until it’s tight. It will automatically adapt its stroke to that of the valve.
It’s recommended that the eTRV-HW is opened to make it easier to mount, this is done by calling for heat on the eTRV-HW or RF16 and it will retract the spindle. 4) Position the eTRV-HW on the valve so the screen is orientated correctly.
Note: The eTRV-HW is designed for use with SEMTRVB22C Valve.
EPH Controls Ltd.
Mounting of Temperature Sensor
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. The temperature sensor can be
fixed to the cylinder using the provided foil tape.
IN THERMAL POCKET: To ensure accurate control, the temperature sensor should
be inserted into the thermal pocket. It is essential that the sensing element
is inserted as far as possible. The temperature sensor can be fixed using the
provided foil tape.
Smart Cylinder Thermostat Operating Instructions
LCD Symbol Description
Wireless symbol
Room Temperature
Boost Time
Battery low Limit active
Lock
Heating ON symbol
12
eTRV-HW
Button Description
Minus Button Boost Button
Plus Button On / Off Button
Shortcuts Hold and Hold and Hold and
for 10 seconds for keypad lock. for 5 seconds to access the menu. for 5 seconds for RF connection.
EPH Controls Ltd.
13
Replacing the Batteries
Press and hold the release mechanism on the side of the eTRV-HW, while holding
pull the cover up and it will slide off the eTRV-HW.
Remove and replace the 2 x AA batteries. It is extremely important to use good
quality batteries in the eTRV-HW to ensure correct operation of the product.
Slide the cover back on to the eTRV-HW and it will return to it’s normal
operation.
Li-FeS2 (Lithium Iron) batteries available from www.ephcontrols.com
The eTRV-HW will display error codes if there is a problem.
- E4
Motor Issue Check Batteries
If E4 still shows after premium batteries are used, the eTRV-HW needs to be replaced. - Battery Low Indication
When the batteries are low on the eTRV-HW, the screen will show a low battery icon , this will also show on the zone in the EMBER App. When this appears on the screen it is recommended to replace the batteries immediately. (see page 6 and 14)
EPH Controls Ltd.
15
Boost Function
The eTRV-HW can be boosted to a specific temperature for 30 minutes, 1, 2 or 3
hours. Press once for 30 minutes,
twice for 1 hour, three times for 2 hours or four times for 3 hours.
Then Press or the boost period.
to set the desired temperature for
30, 1, 2 or 3 will appear on the screen, wait 5 seconds for the eTRV-HW to return to the home screen.
To cancel a boost, press when boost is active.
Locking and unlocking the eTRV-HW
To lock the eTRV-HW Press and hold and for 10 seconds.
will appear on the screen. The buttons are now disabled.
To unlock the eTRV-HW Press and hold and for 10 seconds.
will disappear. The buttons are now enabled.
16
eTRV-HW
Changing the Mode
Press to change between AUTO, MANUAL and OFF modes. AUT – Auto OFF – OFF On –
Manual
Adjusting the Target Temperature
Press or to decrease or increase the target temperature. Press or wait 5
seconds. The target temperature is now saved. This will change the manual and
auto temperature permanently. It is recommended that the boost level and
target temperature are set as advised by the installer. See page 30 of the
RF16 controller installation guide.
EPH Controls Ltd.
17
Connecting an eTRV-HW to the RF16 Controller
On the RF16:
Press MENU .
`P01 & rF Cn’ will appear on the screen.
Press
to confirm.
`01′ will appear on the screen.
Rotate to the required zone.
Press
to select that zone.
`CONNECT’ will appear flashing on the screen.
Note: When selecting a zone to pair, zones that are flashing are available while zones that are solid have already been paired.
18
eTRV-HW
On the eTRV-HW: Press and hold and for 5 seconds. nOE’ will appear on the screen followed by – – ‘ The eTRV-HW will display r followed by the zone
number. Press to exit from screen.
On the RF16: `CONNECTED’ will appear solid on the screen when the eTRV-HW is
successfully paired. Rotate to pair the next available zone and repeat the
process or press MENU to exit. Press MENU to return to normal operation at
anytime.
EPH Controls Ltd.
19
Disconnecting an eTRV-HW from the RF16 Controller
To Disconnect all zones:
On the RF16:
Press MENU on the RF16.
`P01 rF Cn’ will appear on the screen.
Rotate screen.
clockwise until `P06 rF dn’ appears on the
Press
to confirm.
`ALL’ will be flashing.
Press
to select ALL.
`nO’ will appear on the screen.
Rotate clockwise.
`YES’ will flash on the screen.
Press
to confirm disconnection.
This allows you to disconnect all connected zones at once.
20
eTRV-HW
To Disconnect an individual zone:
On the RF16:
Press MENU on the RF16.
`P01 rF Cn’ will appear on the screen.
Rotate screen.
clockwise until `P06 & rF dn’ appears on the
Press
to confirm.
`All’ will be flashing.
Rotate to select a hot water zone.
Press
to select the hot water zone to be unpaired.
`nO’ will appear on the screen.
Rotate clockwise.
`YES’ will appear on the screen.
Press
to confirm disconnection.
Press MENU to exit to the home screen.
EPH Controls Ltd.
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Menu
P1 CAL – Calibrate
This function allows the user to calibrate the temperature reading of the eTRV-HW.
Press and hold and for 5 seconds.
`CAL’ will appear on screen.
Press to select.
The current actual temperature will appear on the screen.
Use
and to adjust the temperature reading.
Press to confirm and you will return to the menu.
Press to exit at any point.
22
eTRV-HW
P2 Hi & Lo Setting high & low limits
OFF
This function allows the user to change the minimum and maximum temperatures
that the thermostat can be set to between 5…90°C. Press and hold and for 5
seconds. CAL’ will appear on the screen. Press untilLIn’ appears on the
screen. Press to select. Press to select ON. Press to confirm. Hi’ will appear on the screen. The temperature will flash. Use and to select the high limit. Press to confirm,Lo’ will appear on the screen. The temperature will
flash. Use and to select the low limit. Press to confirm and you will return
to the menu. Press to exit at any point. `LIM’ will appear on the screen of
the eTRV-HW.
EPH Controls Ltd.
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P3 rSt Resetting the eTRV-HW
This function allows the user to reset the eTRV-HW to its factory default
settings. Press and hold and for 5 seconds. CAL’ will appear on the screen. Press untilrSt’ appears on the screen. Press to select. nO’ will flash on the screen. Use to adjust.YES’ will flash on the screen. Press to confirm.
The eTRV-HW will now reset and will go to the OFF mode. Press to change
between Manual, Auto and OFF.
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