DELIMING PROCEDURE
— Connect A
CE
deliming kit
as shown in picture.
1. Close gas cock at heater.
2. Turn off water to and from heater and drain heater.
3. Type “C” A
CE
Heater, remove upper aquastat and
well and install faucet; Type “D”, “E” and "G" A
CE
Heater, remove pipe plug on left side of upper heater
manifold and install faucet.
4. Attach hose from pump to top faucet and return hose
from acid container to lower faucet as shown in pic-
ture.
5. Pour water into plastic container and add equal
amount of acid. Approximately 4 gallons of diluted
solution is required for 400,000 BTU and smaller
heaters, 5 gallons to 7 gallons for heaters up to
760,000 BTU and 9 gallons for heaters between
1,000,000 and 1,500,000 BTU.
6. Turn on pump and circulate solution until foaming
action of the solution stops indicating that dissolving
of the lime has been completed. Add approximately
an additional quart of solution to insure that end of
foaming is not due to spent acid. Do not continue to
pump acid solution for a prolonged time after foam-
ing stops because the acid will dissolve the copper
and brass.
7. Flush heater out with baking soda and water solution
and return it to service.
In case of a completely plugged coil it is recommended
that a heater serviceman be called in to do the deliming.
CAUTION! A
VOID SPILLING OR DRIPPING ACID ON HANDS
,
FACE
,
CLOTHING OR
E
LECTRICAL
C
ONTROLS OR WIRING
.
C
OVER CONTROLS WITH PLASTIC SHEETING SUCH AS
S
ARAN
,
OR
P
OLYETHYLENE
B
AG
,
TO AVOID DAMAGE TO THESE PARTS
.
U
SE A BAKING SODA AND WATER SOLUTION TO NEUTRALIZE
ANY ACID ON HANDS
,
FACE
,
CONTROLS
,
ETC
.
NON-ACID DELIMING SOLUTION
— For those pre-
ferring to use a non-acid base solution, it will be noted
that the effectiveness of such a solution is shorter-lived
than regular acid and usually requires more stock solu-
tion. Such a solution, called “LIMINAL”, may be
obtained from Polyteck Co., 5112 W. Jefferson Blvd.,
Los Angeles, Calif. 90016. Also in the eastern areas
contact Tri-Bros. Chemical Corp., P.O. Box 2, Morton
Grove, Illinois 60053 for solution called “Lime Eater”.
Water heaters that use fresh water will develop a coat-
ing of lime if the fresh water is not softened or if it is not
naturally free from undissolved solids. When a water
softener does not function properly, due to lack of ser-
vicing or due to undersizing, the heater will develop
lime.
Inspection of Heater
— Check heater every 6 months
by closing water plug cocks, and removing high limit
aquastat well, located in top manifold, and visually
inspect the inside of the coil for lime. A
CE
recommends
deliming if
1
/
32
" or greater thickness of lime is found. If
recovery rate of heater falls off, this is usually a sign of
lime in the coil. The A
CE
coil will “bang” or “knock” if lim-
ing condition is severely restricting circulation.
Customers have reported operating A
CE
heaters and
softeners under heavy duty laundry service for 10 to 15
years without the need to delime or change the A
CE
conical coil. Under moderate water hardness condi-
tions, A
CE
users have found that when operating with-
out a softener that deliming once a year could be
accomplished in approximately one hour.
For deliming, use solution of muriatic acid (which can be
purchased from any drug or pool supply store) and
dilute with equal amount of water to obtain a 50% solu-
tion for normal deliming.
Caution: Always add acid to
water when diluting. Adding water to acid can result in
splashing and acid burns.
If coil has a heavy coating of
lime, use only 10% solution of acid of acid to start with
to prevent chunks of lime from breaking loose and plug-
ging the coil before dissolving.
Deliming Kit
E F F E C T I V E — A
C E
s i n g l e c o i l , n o
p a r a l l e l t u b e s , i n s u r e s t h a t a l l
l i m e i s r e m o v e d
FA S T — S i m p l e h o o k u p a n d s i n -
g l e c o i l a l l o w s d e l i m i n g t o b e
a c c o m p l i s h e d i n o n e h o u r o r l e s s
u n d e r n o r m a l
c o n d i t i o n s
E C O N O M I C A L — A c i d c o s t s
s h o u l d n o t e x c e e d $ 1 5 . 0 0 o n
l a r g e s t h e a t e r. Muriatic acid can
be purchased at most drug stores or
pool supply dealers.
Ajax B
O I L E R
I
N C
.
2 7 0 1 S . H
A R B O R
B
L V D
.
S
A N TA
A
N A
, C A 9 2 7 0 4
P
H O N E
: ( 7 1 4 ) 4 3 7 - 9 0 5 0
F
A X
: ( 7 1 4 ) 4 3 7 - 9 0 6 0
w e b s i t e : w w w. a j a x b o i l e r. c o m
e m a i l : I n f o @ a j a x b o i l er. c o m
GAS FIRED COPPER FIN CONE COIL WATER HEATERS • HEAVY DUTY INDUSTRIAL WATER HEATERS • “MINI-PACK” SEMI-INSTANTANEOUS
WATER HEATERS • PACKAGED STORAGE WATER HEATERS • CLEAN STEAM BOILERS • ASME HOT WATER STORAGE TANKS
Ace Boiler Inc., formerly Ace Buehler Inc.,
is a division of Ajax Boiler Inc.
Ace Boiler Inc. maintains a policy of
continuous improvements and therefore
reserves the right to change specifications
without notice.
“Quality, Value and Service Since 1919”
S
ECTION
265
E
FFECTIVE
D
ECEMBER
2002
Packages are available
for domestic hot water
systems, laundry
heaters, car wash sys-
tems, and swimming
pool heating.
A
CE
B
OILER
I
NC
.
S
ECTION
250
CONTINUED
Rev
.3-3.22.2010
“
“
“
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”
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”
Ace Heating Solutions, LLC
2701 S. H
ARBOR
B
LVD
.
S
ANTA
A
NA
, CA 92704
P
HONE
: (714) 540-2230
F
AX
: (714) 540-2239
www.aceheatingll.com
November 2014 ace
