Instruction Manual

When the batteries are nearing the end of their life a low battery symbol will

appear in the display and the batteries should be changed within a few days.

If the batteries are not changed at this point eventually a 'LO' battery

message flashes intermittently in the display and if this happens the

batteries should be changed immediately.

Battery replacement

The HRT4-ZW runs on 2 x type AAA (Alkaline) non rechargeable batteries

and is designed to give a battery life of approximately two years.

Once the batteries are fitted, re-fit the

thermostat to the wall plate by engaging with

the lugs at the top of the wall plate and push

the thermostat into position. Locate it over the

captive screws at the base of the wall plate

and tighten so that the thermostat is locked into position.

To change the batteries it is

n e c e s s a r y t o r e m o v e t h e

thermostat from the wall. To do this

first undo the two captive screws at

the base of the thermostat and

swing the thermostat up and away

from the wall plate.

Please dispose of the batteries responsibly.

Remove the old batteries and replace them

with two new AAA size alkaline batteries

ensuring that they are fitted correctly as

indicated by the terminal markings in the

battery compartments.

Check the temperature setting is correct and adjust if necessary.