Emerson Alco Controls FSE-0 Serie Instructions De Service

G e n e r a l i n f o r m a t i o n :
FSE Control Modules are simple and economical
devices that provide analogue 0...10 V electrical
signals based on condensing pressure changes. They
have been optimized to meet the requirements of air-
cooled condensers. Additional conditioning of the
output signal is not necessary. FSE are the ideal signal
source for EC type fan motors.
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.
• Before opening any system make sure pressure in
system is brought to and remains at atmospheric
pressure.
• FSE are factory set to a specific pressure at which
output voltage is 0V (point Z in Fig.1). If
adjustment is needed, refer to instructions for
proper procedure. Improper adjustment may
result in system damage or failure.
• Do not exceed the specified maximum ratings for
pressure, temperature, voltage and current.
S e t t i n g
If desired set point differs from factory setting, follow
the procedure for setting before any installation:
Factory set point:
Type Refrigerant Temp.
(°C) Pressure
R134a 35
R1234ze 45
FSE-01_
R513A 33
R450A 39
R404A 36
R507 35
R452A 34
FSE-02_ R448A 35
R449A 35
R407C 38
R22 43
FSE-03_ R410A 35
20.4 bar 4.6 bar
• For temperatures below these values FSE output
signal will be zero.
• The Setting Pressure is adjustable within Adjustment
range Fig.1 ( Z = Setting pressure adjustable).
Fan Hysteresis
Speed P-band ~ 1.3 bar
Z
Adjustment range Condensing
Fig.1 Pressure
Fig.2
Emerson Climate Technologies GmbH
Am Borsigturm 31 I 13507 Berlin I Germany
Operating instructions
Control Modules FSE-0
1
Bottom view
2
Setting Screw
3
Sealing plug
1. Remove sealing plug and insert 2 mm or 5/64" Allen
key into setting screw. Turn Allen key clockwise (+)
or counterclockwise (-) to readjust the setting.
Note: Do not turn setting screw more than 3 turns
clockwise (+3).
Change per 1 turn of adjustment screw:
Type
Pressure range
(bar)
Turn
clockwise
Turn counter-
clockwise
2. After adjustment insert sealing plug and make sure
that it is properly fitted.
Note: IP65 protection requires firmly sealed plug.
Readjustment to factory set point:
To readjust to factory setting, a pressure gauge, a
constant voltage of 10 VDC and a DC volt meter is
needed.
1. Apply constant voltage between pin 2 (+) and pin 4
(-).
2. Connect voltage meter between pin 1 (+) and pin 4 (-
).
3. Apply pressure of ~60% of maximum operating
pressure PS, then decrease pressure slowly to the
needed setpoint per table "Factory Set Point".
Setting P-band
Pressure should not be below setpoint at any time.
fix
4. Adjust voltage with adjustment screw (1) to 0,5 V.
(bubble
For confirmation decrease pressure to ~30% of
point)
maximum pressure PS, then increase to ~60% of PS,
then decrease again slowly to setpoint. If necessary,
correct again with Setting screw (2).
7.8 bar 2.5 bar
5. After adjustment insert sealing plug and make sure
that it is properly fitted.
Note: IP65 protection requires firmly sealed plug.
M o u n t i n g l o c a t i o n :
15.5 bar 3.8 bar
Fig. 3:
• Mounting after condenser (1) before accumulator (2),
Output
• Preferred with pressure connection down.
Signal
(3) = EC-type fan motor, (4) = evaporator
I n s t a l l a t i o n :
Direct mounting via pressure connection or indirect
mounting on housing bracket with capillary tube or
sweat pressure connection.
Threaded connection:
• For tightness
the use
copper gasket
on 7/16"-
20UNF female
connection
required.
Fig. 4
www.climate.emerson.com/en-gb
4
Allen Key
5
Clockwise
6
Counterclockwise
FSE-01_ FSE-02_ FSE-03_
4.0...12.5 10...21 12...28
~ 1.5 bar ~ 2.5 bar ~ 3.3 bar
~ 1.5 bar ~ 2.5 bar ~ 3.3 bar
of
is
FSE_OI_EN_DE_FR_ES_IT_RU_0120_R09_0716136.docx
Brazing:
• 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.
• Do not exceed the max. body
temperature of 70°C!
Fig. 5
E l e c t r i c a l c o n n e c t i o n :
Note:
Entire electrical connections have to comply with
local regulations.
with PS3-Nxx (DIN 43650):
• Push plug slightly on the pins of
controller.
• Only one direction possible.
• No gasket required.
• PS3-Nxx cable color code:
blue = GND; brown = 10 V;
black = signal.
• Fasten screw with 0,05 Nm.
• Plug cannot be repaired. In case
of failure replace connector.
Fig. 6
P r e s s u r e T e s t :
After completion of installation, a pressure test must be
carried out as follows:
‒ according to EN 378 for systems which must comply
with European pressure equipment
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.
• The pressure test must be conducted by skilled
persons with due respect regarding the danger
related to pressure.
L e a k a g e T e s t :
Conduct a tightness test according to EN 378-2 with
appropriate equipment and method to identify leakages
of external joints.
T e c h n i c a l D a t a
Supply voltage
Operating current
Output signal
Max. medium
temperature at pressure
connection
Ambient temperature
range TS
Max.
operating
Pressure PS
FSE-01_: 27 bar
FSE-02_: 32 bar
FSE-03_: 45 bar
Medium compatibility R410A R134a R404a,
R507 R407C R1234ze
R452A R448A R449A
R450A R513A R22
Protection class IP65 (with plug PS3-Nxx)
(EN 60529/IEC 529) IP00 (without plug)
Marking
UL (File Nr. 355325)
directive
10 VDC
1 mA
0 ... 10 V
70°C
-20°C ... +65°C
Test
Pressure PT
30 bar
36 bar
48 bar
Date: 27.01.2020