check with the makers,our candy worked OK without the hot supply connected,just took longer per cycle whilst the inbuilt heater brought the water up to temperature
usually the hot supply is only used on wash temperatures of 60 degrees or over.
You could use a Y piece and connect your cold feed to both the hot and cold points on your washing machine.
Only downside is that it might take a little longer for the water temperature to get to the desired level.
My whirlpool takes both hot and cold or just cold. Simply just connect the cold and blank off the hot connection - check your manual to see if there's a tap also.