joule Cyclone series, Installation & Maintenance Manual

Page: 51 / 58

Cyclone Direct / Indirect Installation Guide
51
Fault Possible Cause Solution
Water escaping from the
case unit.
Compression tting on hot - draw
off not sealing.
Check / remake joint sealing paste.
Cold water at hot tops. Immersion heater not switched
on or cutout has triggered.
Check / reset.
Indirect - Boiler not working. Check boiler - consult boiler manu- factures’
instructions.
Indirect - motorized valve fault. Check plumbing / wiring motorized valve.
Indirect - cutout in dual stat has
operated.
Check outlet pressure from inlet control set is
3 bar.
Water discharges from
expansion relief valve
If continual - pressure reducing
valve (part of inlet control set )
may not be operating correctly.
Check outlet pressure from inlet control set is
3 bar.
If continual - expansion relief
valve seat may be damaged.
Remove cartridge - check seat and renew if
necessary.
If intermittent - expansion vessel
charge may have reduced / blad-
der perished.
Check pressure in expansion vessel. Recharge
to 3 bar if necessary. If bladder perished
replace vessel.
Unit is being back pressurized. 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.
Water discharges from
temperature & pressure
relief valve
Unit has overheated - thermal
controls have failed.
Switched o power to boiler and immersion
heaters. Leave water supply on. Wait until
discharges stops. Isolate water supply and
replace if faulty.
Milky / cloudy water Oxygenated Water. Water from any pressurized system will release
oxygen bubbles when flowing. The bubbles will
settle out.
No hot water flow Cold main off. Check and open stopcock.
Strainer blocked in pressure
reducing valve.
Isolate water supply and clean.
Inlet control set may be fitted
incorrectly.
Check and re t required.
Noise during hot water
draw o - typically worse
in the morning
Loose airing cupboard pipework. Install extra clips.
Hot or warm water from
cold tap
If tap runs cold after a minute or
so the pipe is picking up heat
from heating pipework.
Insulate/re-route.