Alfa Laval Micro - RF Communication Check (Test Mode); Locating and Mounting the Room Thermostat

Alfa Laval Micro
Installation, service and operating instruction
26
RF Communication check (test mode)
6.6
To check the RF communication:
1. Hold the room thermostat about 2-3 meters from the installed relay box.
Picture 16
2. On the room thermostat, press the OFF button, then press the and buttons together with the
button for 3 seconds.
3. The unit will display ‘TEST TRANSMIT’ and it will send test signals to the relay box. The relay box will
be flashing the green LED on every 6 seconds (relay output will remain off) for a maximum of 10
minutes.
NOTE: If the green LED is not switched at specified intervals, the red LED is flashing or if you are installing a
replacement relay box or room thermostat, follow the procedures described in
section 7 Binding/rebinding the CM721.
Locating and mounting the room thermostat 6.6.1
While still in the Test Mode, as described in section 6.6, the room thermostat should be located taking the
following into consideration.
The room thermostat should be installed:
 in an open space for best performance as it is a radio frequency device
 1.2 meters above the floor and on an inner wall
 at least 30 cm distance from any metal objects including wall boxes and at least 1 metre from any other
electrical equipment e.g. radio, TV, PC etc.
 do not mount onto metal wall boxes.
1. On the room thermostat, press the for 5 seconds. The
display shows:
Picture 17
2. The relay box’s red light flashes the signal strength.
Five flashes are perfect. If less than two flashes, look for another location.
3. Exit the Test Mode by pressing the AUTO or OFF button on the room thermostat.
4. Mount the room thermostat on the wall, with the wall brackets
NOTE: It is recommended that the relay box is fully installed.