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Emerson Electric GmbH & Co
Heerstr.111 - D 71332 Waiblingen
Tel.: 07151 509-0 - Fax.: -200
FSE Control Modules operate together with FSP Power Modules to control
the speed of condenser fan motors according to pressure changes. Make sure that
the motor is approved by the motor/unit manufacturer for variable speed by
means of phase cutting (TRIAC).
!
Safety instructions:
• Read installation instructions thoroughly. Failure to comply may result in
device failure, system damage or personal injury.
• 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 cut-off pressure. If adjustment is needed,
refer to instructions for proper procedure. Improper adjustment may
result in system damage or failure.
• Do not exceed safe working pressure.
• FSE are for use with FSP only. Do not connect to any other voltage supply.
Mounting location:
see Fig. 1 after condenser (1) before accumulator (2), preferred with pressure
connection down. (3) = fan, (4) = evaporator, (5) = mains power supply,
Pressure connection:
See Fig. 2 for thread connection. Use copper gasket (1).
See Fig. 3 for solder connection. Use damp cloth (2) to keep housing temp.
below 70°C while soldering.
Electrical connection
Use FSE-Nxx cable assembly (DIN 43650). Push plug slightly on the pins of
control module. Only one direction possible see Fig. 4. No gasket required.
Fasten screw with 0,05 Nm.
Note: Plug can not be repaired. In case of failure replace connector.
Leakage test:
After completion of installation, a test pressure must be carried out as follows:
- According to EN378 for systems which must comply with European pressure
equipment directive 97/23/EC
- To maximum working pressure of system for other applications
Warning:
1) Failure to do so may result in loss of refrigerant and person injury.
2) The pressure test must be conducted by skilled persons with due respect
regarding the danger related to pressure.
Document Nr.: A6.5.094 / 00
ALCO CONTROLS
Replacement for -
Operating Instructions
Control Modules FSE-0
Setting
FSE-0 Control Modules are factory preset for 2 V output voltage if decreasing
pressure / temperature falls below the value given in the table below.
Factory Set Point
Type
FSE-01_
Refrigerant
R134a
Pressure bar
7.8
Temp. °C
35
For temperatures below these values FSP will stop fan motors (cut-off).
For adjustment to other settings follow procedure below before mounting FSE
(Numbers refer to Fig. 5):
Remove sealing cap (3). Insert enclosed 2mm allen key (2) into adjustment
screw (1). Turn allen key clockwise (+) to increase, or counterclockwise (-) to
decrease pressure setting. Do not turn adjustment screw more than 3 turns
clockwise (+3).
1 turn causes a pressure change of approximately 2.6 bar.
To readjust to factory setting, a pressure gauge, a constant voltage of 10 VDC
and a DC volt meter is needed. Apply constant voltage between pin 2 (+) and pin
4 (-). Connect voltage meter between pin 1 (+) and pin 4 (-). Apply pressure of
~60% of maximum operating pressure PS, than decrease pressure slowly to the
needed setpoint per table "Factory Set Point". Pressure should not be below
setpoint at any time. Adjust voltage with adjustment screw (1) to 2 V. For
confirmation decrease pressure to ~30% of maximum pressure PS, than increase
to ~60% of PS, than decrease again slowly to setpoint. If necessary correct again
with adjustment screw (1).
After adjustment insert sealing cap (3) and make sure that it is properly fitted. IP65
protection requires firmly sealed plug.
Technical Data
Supply voltage: 10 VDC
Output signal: 0 ... 10 V
Max. medium temperature at pressure connection: 70°C
Ambient temperature range TS: -20°C up to +70°C
Max. operating Pressure PS
FSE-01_:
27 bar
FSE-02_:
32 bar
FSE-03_:
43 bar
Medium compatibility: HFC, HCFC
Protection class: IP 65 according to EN 60529/IEC 529
Date: 22.04.2004
FSE-02_
R22
R407C
R507
15.5
15.5
15.5
43
37.5
36.5
Test Pressure PT
30 bar
36 bar
48 bar
DWG Nr.: 0716136
GB
FSE-03_
R410A
20.4
35
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