Fault Finding - Kingspan Tribune HE Installation & Maintenance Instructions Manual

Installation & Maintenance Instructions for an unvented
hot water cylinder with internal thermal expansion
FAULT
Water escaping from the case
Cold water at Hot taps
Water discharges from expansion
relief valve
Water discharges from temperature
&. pressure relief valve
Milky / cloudy water
No hot water flow
Noise during hot water draw-off
-typically worse in the morning.
Hot or warm water from cold tap
SPARE PARTS
A full range of spare parts is available from Kingspan.
Tel: 0345 260 0258 see page 2 for part numbers or online
from Kingspan Part Shop www.kepartshop.com
USER INSTRUCTIONS
Your stainless system is automatic in normal use and requires
only annual servicing. You should employ a competent
installer to perform the annual servicing. Normally this is
timed to coincide with the annual boiler service.
IF WATER IS FLOWING FROM THE SAFETY VALVES THROUGH
THE TUNDISH THIS INDICATES A FAULT CONDITION AND
ACTION IS NEEDED.
If this water is hot, turn the boiler and / or the immersion
heater off. Do not turn off the water until the discharge runs
cool. The discharge may also stop.

FAULT FINDING

POSSIBLE CAUSE
Compression fittings not sealing
Direct - immersion heater not switched on or cutout has
triggered
Indirect - boiler not working
Indirect - motorised valve fault
Indirect - cutout in dual stat has operated
If continual - pressure reducing valve ( part of inlet control set)
may not be operating correctly
If continual - expansion relief valve seat may be damaged
Unit it being back pressurised
Loss of air gap in cylinder
Unit has overheated - thermal controls have failed
Oxygenated water
Cold main off
Strainer blocked in pressure reducing valve
Inlet control set may be fitted incorrectly
Loose airing cupboard pipework
If tap runs cold after a minute or so the pipe is picking up heat
from heating pipework.
Hot Water
Unvented Cylinder
SOLUTION
Check/remake joint with sealing paste
Check / reset
Check boiler - consult boiler manufacturers' instructions
Check plumbing / wiring to motorised valve
Reset and investigate cause
Check outlet pressure from inlet control set is no greater than
3.0 bar.
Remove cartridge - check seat and renew if necessary
With cylinder cold check pressure in cylinder. If this is the same
as the incoming mains pressure then you are getting backfeed.
Install a balanced cold supply (see page 6)
Follow recharge steps on page 17
"Switch off power to boiler and immersion heaters.
Leave water supply on. Wait until discharge stops.
Isolate water supply and replace if faulty"
Water from any pressurised system will release oxygen bubbles
when flowing. The bubbles will settle out.
Check and open stopcock
Isolate water supply and clean
Check and refit as required
Install extra clips
Insulate / re-route
CALL OUT A COMPETENT PLUMBER TO SERVICE THE UNIT.
Tell them you have a fault on an unvented cylinder. We stock
all the spare parts they may need (see page 3).
DRAINING
IMPORTANT: After draining the cylinder do not close the hot
tap until the cylinder has fully cooled, failure to follow this
instruction may result in damage to the cylinder and will
invalidate the guarantee.
The installer must follow the Benchmark code of practice for
the Benchmark certification to be valid. Please see page 28
for further details.
Energy Storage
19
SEPT 2018