Lavit LCB 100 Technical Manual page 43

Dry p owder
dispense o r a
large a mount o f
undissolved
powder.
Lavit D ocument: T M170915-­‐A
The f ollowing f our c onditions m ay e xist:
1. The C O2 p ressure i s t oo h igh o n t he C O2 r egulator a nd t he h igh
pressure s tops t he s oda p ump f rom r efilling t he t ank. C heck t hat t he
regulator s etting i s 3 .5 b ar. P urge C O2 f rom t he r ear o f t he u nit.
2. Faulty s oda p ump. T o v erify t hat t he s oda p ump i s p owered o n
inspect t he m ain P CB. T he r ed p lug c onnection m arked P UMP f eeds
24V D C t o t he s oda p ump. I f t he r ed L ED a djacent t o t he P UMP
connection i s o n a nd t he s oda p ump i s n ot r unning t hen i t i ndicates
that t he p ump i s f aulty a nd y ou s hould c hange i t.
3. An a irlock e xists i n t he w ater l ine. I f t he w ater l ine t o t he s oda p ump
has a n a ir l ock t hen t he p ump w ill r un b ut n ot f ill t he s oda t ank. T o
clear a n a irlock y ou w ill n eed t o p ower d own t he m achine a nd
disconnect t he o utlet p ipe f rom t he s oda p ump t o t he s oda t ank. T urn
the m achine b ack o n a nd r un t he p ump t o w aste u ntil t he s oda p ump
discharges w ithout a ir. P ower d own, r econnect t he w ater p ipe t o t he
soda t ank, p ower u p a nd v erify p roper o peration.
4. A s hort c ircuit e xists i n t he l evel c ontrol l ine. A s hort b etween t he
level p robe w ires w ill s ignal t he P CB t hat t he s oda t ank i s f ull o f
water. T he P CB t urns o n t he s oda p ump w hen t he s ignal l ines a re
open c ircuit. T o d iagnose t his f ault u nplug t he s oda t ank l evel c ontrol
plug f rom t he P CB ( yellow p lug m arked p robe). T he s oda p ump
should r un i n t his c ondition. V erify t he r ed L ED a djacent t o t he P UMP
connection i s o n. R eplace t he y ellow p robe p lug a nd t he p ump w ill
stop. D ispense s parkling w ater. T he s oda p ump s hould p ower o n a nd
the r ed L ED s hould b e o n. I f i t i s n ot o n t hen t here i s a s hort o n t he
signal l ines, n ormally o n t he c ap o f t he c old t ank w hich c an b e c aused
by c ondensation o r a l eak. R emove t he c old t ank i nsulation c ap a nd
dry a ny c ondensation.
This c ondition w ill o nly b e p resent i f t he m ix s tream d ispense v olume i s t oo
low. A l ow m ix s tream v olume c an o ccur u nder t he f ollowing c ircumstances:
1. For a P OU i nstallation t he i nlet w ater s tream p ressure h as b een
reduced. I f t he i nlet w ater i s r unning t hrough a f ilter e nsure t hat t he
filter i s n ot c logged w ith s ediment. I f a l ow w ater p ressure e xists
recalibrating t he m ix s tream m ay r esolve t he p roblem.
2. If t he i nstallation i s r unning o ff o f a b ottled w ater s upply c heck t he
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