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User Interface Guide – Troubleshooting

Turn the device OFF (5

°C)

Turn the device ON (21

To turn the TRV
off, short press
the on/off button

The left LED with

flash amber for 5
seconds

To turn the TRV
on, short press
the on/off button

The left LED with

flash green for 5
seconds

Unbinding the Device

Signal Strength

Press binding
button for 10+
seconds

After 10 seconds
LED will

flash red

for 10 seconds

When in RF
Comms Check,
hold both buttons
for 5 seconds

Both LED will

flash amber for
up to 10 minutes

Zone Identification

Locked Device

Short press
binding button

Right LED will

flash green for 5
seconds

Press both
buttons to check
if TRV is locked

TRV is locked if

both LED are red
for 3 seconds

Summary of Contents for HR91

Page 1: ...ure adjustment through the dial and direct status check via the display With HR91 you can directly set the temperature to a predefined set point of 21 C or 5 C and you can check the status of the radi...

Page 2: ...l stop flashing How do you check the status of the valve Once you install your TRV short press right button to check the status of the device A green LED flash indicates that your device is working pr...

Page 3: ...temperature By pressing the left button will set the device to 5 C and the left LED will flash orange If you press again the same button the temperature will go to 21 C and the left LED will flash gre...

Page 4: ...nutes whilst binding Succesful binding is confirmed by right LED showing permanently green for 5 seconds After 2 minutes binding timesout if unsuccessful TRV will return to normal default mode Short p...

Page 5: ...e left LED with flash green for 5 seconds Unbinding the Device Signal Strength Press binding button for 10 seconds After 10 seconds LED will flash red for 10 seconds When in RF Comms Check hold both b...