1. Description
The Alpha Easy-Stat
2
is a radio frequency 7-Day clock and room thermostat. It consists of a
Transmitter, with a boiler mounted Receiver as shown in Fig. 1. The device can be pre-
programmed to provide maximum and minimum room temperature control. Each day can be
programmed with the same – or different – time periods. The programme can be temporarily
or permanently overridden to increase or decrease the desired temperature setting. The
Easy-Stat’s transmitter is battery powered using two AA size alkaline batteries. The batteries
should operate the device for approximately 18 months to 2 years depending on the number
of switching operations etc. When the batteries need replacing, a low battery symbol
flashes in the display. After replacement, all the programmes and temperature settings
remain stored and no resetting is required.
Note: If the batteries are not replaced and no valid signal is received from the Transmitter,
the Receiver’s LED light will flash every 0.5 seconds. After 1 hr the boiler will operate in
‘Emergency mode’ (heating on for 4 min. and off for 9 min.) until the batteries are replaced.
If the batteries are not replaced or fitted correctly, i.e. wrong polarity, ‘BAT’ will flash on the
display until batteries are fitted or fitted correctly.
2. Installation of Receiver into boiler - see Fig. 2
Ensure the electrical supply to the boiler is isolated.
a. Lower the front cover and remove the two fixing screws (one each side) securing the
control panel. Close the front cover and lower the control panel.
b. Remove the two screws securing the clock cover at the rear of the control panel and remove
cover.
c. Remove and discard the clock blanking panel.
d. Connect the boiler wiring to the receiver.
Red wires to terminals 3 and 4
Brown wire to terminal 2
Blue wire to terminal 1
ENSURE WIRING IS CORRECT
e. Insert the Receiver into the opening and secure in place with the screws supplied fitted in
the control panel.
f. Replace the clock cover. Do not overtighten the fixing screws.
g. Leave the control panel open until commissioning procedures have been completed.
Easy-Stat
2
Transmitter
Easy-Stat Receiver
ALPHA 7-DAY EASY-STAT
2
– 6.1000250
(Single Channel / Pre-commissioned)
Fig. 1
