Inta HIPER II Installation And Operating Manual page 22

Page 22
SECTION 10 - Fault finding Guide SECTION 7 - The HIU Controller first power up and set up
NO POWER?
Turn off the potential power
supply using the isolation
switch fused spur. Check Fuse
and wiring within the HIU.
6.3 AMP Glass Fuse
Check that the volt free connections
for room thermostat or Prepayment
have NOT been wired to 230V
YES
If 230 v has been applied to the room
thermostat connections then the
controller maybe damaged beyond
repair and will have to be replaced.
Warranty will not cover this!
Comply with all safety provisions.
Installation and maintenance can only be car-
ried out by a qualified and competent plumb-
ing installer and a qualified and competent
electrical installer in accordance with the cur-
rent document Building Regulations, Legisla-
tion and Standards.
SAFETY! – before any electrical work or
maintenance ensure that the electrical supply
is isolated.
DANGER – immediate risk of physical injury or
even death.
Is there power to the
fused spur connecting to
the HIU?
YES
Check power is on the HIU electronic
NO
controller. Remove the installer panel
and check Live and Neutral connections.
Are they connected?
YES
Power is at the connections to
the controller, but the controller
screen is blank.
YES
Order a HIU new controller
and replace
NO
Check power supply and
Fuse feeding to the HIU.
Fused spur requires a
13A Fuse all correct?
YES
Make good the electrical
connections to the HIU
controller.
YES
O
Power on, HIU operating
normally
NO
05/20 E&OE