Bradford White UPDX series, Руководство по обслуживанию

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Six- fo ur flas h, t hr ee
se c on d p a u se
U n d e si re d - f a l s e
p i l ot f l ame
s en s e d .
Sys tem a u to
re s et s .
S e v en flas h, t hr ee se c on d
p a u se
Fl ammab l e V apor
S en s or f a u l t
d etecte d
E i g h t - one flas h, t hr ee
se c on d p a u se
Fl ammab l e V apor
S en s or o u t o f
s pec ifi cat i on .
Th erma l w e ll
s en s or d ama g e d
or u np l ugg e d
E i g h t - t hr ee flas h, t hr ee
se c on d p a u se
G a s v a l v e
e l ectron i c s f a u l t
d etecte d
LED Status C ontrol Status
Service
Procedure
Probable C ause
Pi l ot v a l v e s t u c k i n open po si t i on .
R eplace gas control,
page 2 7 or 29
WARNIN G : EX P L OS I O N H AZARD
* I n di cate s g a s o l i ne v apor s w ere d etecte d at potent i a ll y
e x p l o siv e l e v e l s .
* V er ify no g a s o l i ne v apor s are s t i ll pre s ent
* R e s et t h e contro l b y c y c l i n g po w er to t h e app l i ance or
b y c y c l i n g t h e O N / O FF swi tc h .
* R ep l ace t h e Fl ammab l e V apor S en s or e l ement if a
g a s o l i ne s p i ll e v ent occ u rre d .
Page 32
* V er ify Fl ammab l e V apor S en s or (FV S ) re sis tance is
not be l o w 2 5 K O h m s .
* Ch ec k wi r i n g to FV S an d con fi rm i t is not sh orte d .
* R ep l ace contro l if e v er y t hi n g abo v e c h ec k s o u t O K.
Page 32
1 . D ama g e to t h erma l w e ll wi re .
2 . Th erma l w e ll s en s or re sis tance o u t o f ran g e .
Page 25
1 . C ontro l nee ds to be re s et .
2 . C ontro l is w et or p hysi ca ll y d ama g e d .
1. Interrupt power supply
2. Replace gas control,
page 2 7 or 29
E i g h t - fo ur flas h, t hr ee
se c on d p a u se
G a s v a l v e f a u l t
d etecte d .
1 . C ontro l nee ds to be re s et .
2 . C ontro l is w et or p hysi ca ll y d ama g e d .
1. Interrupt power supply
2. Replace gas control,
page 2 7 or 29
T r ou b leshootin g
Six- t hr ee flas h, t hr ee
se c on d p a u se
Pi l ot f l ame
e x t i n guish e d .
Sys tem a u to
re s et s .
1 . U n s tab l e p i l ot .
2 . Pi l ot t u be b l oc k e d or re s tr i cte d .
3. O x id at i on b ui l d u p on p i l ot e l ectro d e .
4. Wi re d ama g e to p i l ot a ss emb l y or ba d
connect i on at g a s v a l v e .
5. I n suffi c i ent comb us t i on a i r .
6. G a s pre ssu re is o u t o f s pec ifi cat i on .
1-4. Page 18
5. Refer to installation manual
P a g e 1 3
Six- t w o flas h, t hr ee
se c on d p a u se
P re ssu re swi tc h
or b l o w er temp
swi tc h opene d
du r i n g b u rner
operat i on .
Sys tem a u to
re s et s .
1. Check vent or vent tables.
2 & 3. Page 19
4. Refer to venting section of
installation manual
5. Page 21
6 &
7 . Page 23
8. Refer to installation
manual.
1 . V ent b l oc k a g e or i mproper v ent con figu rat i on .
2 . P re ssu re swi tc h t u b i n g k i n k e d or b l oc k e d .
3. F a u l t y pre ssu re swi tc h .
4. V ent term i nat i on be i n g a ff ecte d b y wi n d
5. B l o w er not s p i nn i n g u p to s pee d .
6. B l o w er temp . or e x h a us t temp . too high
7. F a u l t y b l o w er temperat u re swi tc h .
8. I n suffi c i ent comb us t i on a i r .
Six- one flas h, t hr ee
se c on d p a u se
F a i le d to l i g h t pi lot .
Sy ste m a u to r esets .
1 . U n s tab l e p i l ot .
2 . Pi l ot t u be b l oc k e d or re s tr i cte d .
3. O x id at i on b ui l d u p on p i l ot e l ectro d e .
4. Wi re d ama g e to p i l ot a ss emb l y or ba d
connect i on at g a s v a l v e .
1-4. Page 18
UPDX Series
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