G e n e r a l i n f o r m a t i o n :
The function of suction accumulator is holding liquid
refrigerant and the protection of compressor against
temporary entering liquid fluid from suction line during
reversing flow in heat pumps applications, after defrost
termination in refrigeration applications or temporary
flooding back from system.
S a f e t y i n s t r u c t i o n s :
• Read operating instructions thoroughly. Failure
to comply can result in device failure, system
damage or personal injury.
• According to EN 13313 it is intended for use by
persons having the appropriate knowledge and
skill.
• In a severely contaminated system, avoid
breathing acid vapors and avoid contact with skin
from contaminated refrigerant / lubricants.
Failure to do so could result in injury.
• Before opening any system make sure pressure in
system is brought to and remains at atmospheric
pressure.
• Do not release any refrigerant into the
atmosphere!
• Do not exceed the specified maximum ratings for
pressure and temperature.
• Do not use any other fluid media without prior
approval of EMERSON. Use of fluids not listed
could result in:
- Change of hazard category of product and
consequently change of conformity assessment
requirement for product in accordance with
European
pressure
equipment
2014/68/EU.
• Ensure that design, installation and operation are
according
to
European
standards/regulations.
• The suction accumulator must be used only for
the purpose it is designed for.
M o u n t i n g l o c a t i o n :
• The suction accumulator should be installed as close
as possible to the compressor(s) in the main suction
line but before any installed vibration adsorber.
C l a s s i f i c a t i o n a c c o r d i n g P E D a n d M a r k i n g s
Type
Part No.
(Inch)
A08-304
001973
1/2"
A10-305
001977
5/8"
A06-405
001989
5/8"
A12-305
001978
5/8"
A12-306
001979
3/4"
A14-305
001980
5/8"
A14-306
001987
3/4"
A10-405
001990
5/8"
A10-406
001994
3/4"
A09-506
881995
3/4"
A09-507
882455
7/8"
A12-506
881996
3/4"
A12-507
881998
7/8"
A13-507
882007
7/8"
A13-509
882011
1-1/8"
A17-509
882012
1-1/8"
A17-511
882013
1-3/8"
A11-607
882014
7/8"
A13-607
882015
7/8"
A13-609
882019
1-1/8"
A14-611
882020
1-3/8"
A17-613
882022
1-5/8"
A17-642
889023
A20-613
882021
1-5/8"
A25-613
882023
1-5/8"
Note: *) UL Approval: only A1 refrigerants
Emerson Climate Technologies GmbH
Am Borsigturm 31 I 13507 Berlin I Germany
Operating instructions
Suction Accumulators A-Series
• On heat pumps systems with reversing valve, suction
accumulator should be installed between main
suction line of reversing valve and compressor.
I n s t a l l a t i o n :
• Be sure that the inlet connection is connected to the
main suction line.
• The suction accumulator shell must be mounted
securely in a vertical position.
• Warning: Protect the suction accumulator against
vibration generated by compressor. Install the
vibration adsorber between suction accumulator
and compressor.
B r a z i n g :
• Perform and consider the brazing joint as per
EN 14324.
• Before and after brazing clean tubing and brazing
joints.
• Minimize vibrations in the piping lines by
appropriate solutions.
• To
oxidization, it is
advised to purge
the system with an
inert gas such as
nitrogen
brazing.
• Do not exceed the
max.
temperature
max. 120°C!
directive
L e a k a g e T e s t :
After completion of installation, a pressure test must be
carried out as follows:
and
national
- according to EN 378 for systems which must
comply with European pressure equipment
directive 2014/68/EU.
- to maximum working pressure of system for other
applications.
Warning:
• Failure to do so could result in loss of refrigerant
and personal injury.
Connection
Volume acc. PED
(mm)
(litre)
0.9
16
1.1
16
1.2
16
1.3
1.3
16
1.6
1.6
16
2.1
2.1
2.7
22
2.7
3.8
22
3.8
22
4.3
4.3
5.4
35
5.4
22
5.1
22
5.8
5.8
35
6.4
7.9
42
7.9
9.4
11.6
www.climate.emerson.com/en-gb
avoid
while
body
of
Released
Fluid Group
Refrigerants
(PED)
A1 + A2L
I + II
A1 + A2L
I + II
A1 + A2L
I + II
A1
I
A_S_OI_EN_DE_FR_ES_IT_RU_0420_R07_862927.docx
• The pressure test must be conducted by skilled
persons with due respect regarding the danger
related to pressure.
O p e r a t i o n :
• After leakage test, start system. In general, the liquid
level in the suction accumulator can be observed by
removing external insulation and watching the
condensation or frost level on external surface of
suction accumulator.
• During operation the external surface of the suction
accumulator will sweat. Insulate the suction
accumulator.
S e r v i c e / M a i n t e n a n c e :
• A fused plug has been incorporated in suction
accumulators range A..-4.. and A..-5.. and they will
open if temperature of fluid exceeds 221°C in case of
external fire.
• Do not attempt to repair the fused plug in case of
detection of leakage. The suction accumulator must
be replaced.
• The external surface of shells is coated by epoxy
powder painting for optimum protection against
corrosion. The external surface of shell shall be
checked as per EN-378 during routine/periodic
inspection/service.
T e c h n i c a l D a t a :
Maximum working pressure PS at TS –10...+65°C
Maximum working pressure PS at TS –45...-10°C
Temperature range TS
Date code on label
Refrigerants
Fluid group II
R134a, R404A, R407C, R410A,
(A1):
R448A, R449A, R450A, R452A,
R507, R513A
Fluid group I
R32, R444B, R447A, R452B,
(A2L)
R454B, R454A, R454C, R455A,
(no UL)
R1234ze, R1234yf
Conformity Assessment
Category
Procedure
SEP
-
Not required
Cat.I
Mod. A
(acc. PED)
Cat.II
Mod.D1
CE0036
Cat.II
Mod. D1
CE0036
20.7 bar
15.5 bar
-45...+65°C
Mxxxx (Made in Mexico)
Markings
CE
UL*
EAC
√
√
√
√
√
√
√
√
√
Date: 30.04.2020