15
X
X
X
X
X
3. Mounting the valve operating mechanism
• Manually turn the coupling nut to fasten the valve operating mechanism to the
valve (‘1’ in the figure on the right).
On modern valves this can be done directly using a M30 x 1.5mm screw
thread. When using ‘Danfoss’ valves mount one of the enclosed adaptors to
the valve first.
The following figures 14, 15 and 16 show the adaptors that have to be used
for each valve.
• Briefly press the button ‘2’ on the valve operating mechanism once.
• ‘A3’ appears on the valve operating mechanism’s LCD and the valve is
closed.
• Afterwards, the antenna symbol blinks and ‘0%’ is displayed on the valve
operating mechanism’s LCD.
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Please note:
If you purchased this valve operating mechanism separately and not as part of a set, such as the economy
set comprising the FHZ1000 and valve operating mechanism, for example, then the security code must now
be transmitted. This is described in detail in section 7. d).
• After the security code has been transmitted (not normally required for the
economy set), replace the battery compartment cover.
• The valve operating mechanism acknowledges receipt of the first wireless
protocol with a signal tone.
• The antenna symbol is now permanently displayed and the valve operating
mechanism now responds to radio commands from the FHZ1000.
This initially completes the installation for this room. The control centre works together with the valve operating
mechanisms that are mounted in this room with the factory-programmed settings.
The settings can be changed, as described in section 6. b).
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Please note:
If you wish to mount further valve operating mechanisms, proceed as described above.
Afterwards, the number of radiators/valve operating mechanisms must be set on the control centre, as
described in section 7. e) (‘no H’ option), and the security code must be transmitted.
Figure 12
Figure 13
FHT 8W Heat Demand Relay
Installation and User Guide
Product Code EHC-FH06
1
