EN - USER’S MANUAL
DE - HANDBUCH
FR - MANUEL D’UTILISATION
IT - MANUALE UTENTE
ES - MANUAL DE USUARIO
CEV-S
CEC
Unipolar Electric Expansion Valve
Einpoliges elektronisches Expansionsventil
Détendeur électronique unipolaire
Valvola di espansione elettrionica unipolare
Válvula de expansión electrónica unipolar
RE1.U.9T1.CEV-S.ML.1.2019.5
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EN – Original instructions
The User’s manual is an integral part of the product. It is the User’s responsibility to keep this documentation available
at any time (including transportation, reselling, etc.), to allow for its consultation during the entire equipment lifespan.
The present manual is addressed to skilled and expert technicians.
The product shall be employed only if it has been properly installed and it is free from damages.
ATEX rated products shall only be handled by skilled personnel according to IEC 60079-17.
Specic instructions in the User’s manual impacting or covering ATEX rated products are marked with the
symbol
for easy identication.
RESIDUAL RISKS
High velocity or high-pressure uid discharge.
Surfaces that may become very hot or very cold.
Contact with conveyed uids that may be hot, cold, toxic or otherwise injurious.
Sparking or explosion caused by static electricity build-up or other sources of electricity.
Sparking or explosion from ammable liquids.
In case of doubts or for any further information needed, always consult the complete User’s manual or contact your most
convenient Parker Hannin representative.
1. FOREWORD
The present instruction manual refers to the CEV-S Series electric expansion valves and to their related CEC Series
motor stators. This manual covers all the versions indistinctly.
2. PRODUCT INFORMATION
Consult the product catalogue “RE1.C.9T1.CEV-S.UK” for complete information about the product.
2.1. PRODUCT IDENTIFICATION
Each valve body and stator is indelibly marked, to provide useful information for model identication and servicing.
Refer to these data when contacting our Customer Service.
1 Valve model 1 Coil model
2 Date code 2 Date code
3 Manufacturing plant
3. USE
3.1. PROPER USE
The purpose of the CEV-S Series valve is to be permanently installed in a vapour compression refrigeration appliance,
with or without reverse cycle features, as the expansion (lamination) element to reduce the condensing pressure down
to the value of the evaporating pressure. The CEV-S valve body must be securely coupled to one of the available CEC
Series stator, connected to a properly designed control system.
Bi-ow feature
Direct ow Reverse ow
OPERATIVE LIMITS
MWP / PS 45 bar(g)
Fluid temperature -40 / +85°C
Ambient temperature -40 / +85°C
Admitted refrigerants R134a, R410A, R407C, R290, R32, R448A, R449A, R452A, R452B, R454A, R454C, R513A
Special requirements for ATEX products:
Fluid temperature limits (with ATEX coil) -30 / +70°C
Ambient temperature limits (with ATEX coils) -30 / +70°C
ATEX marking II 3G Ex ec IIC Gb U
Within the above ambient temperature limits, the Temperature Class of the product is T4. The sign ‘U’ at the end
of the marking indicates a that the product has a ‘component marking’ and must not be mistaken with an equipment or
protective system. ATEX products must only be used in explosive areas compatible with their marking.
ELECTRICAL LIMITS
Stator type --> CEC100X5 CEC100X5-1 CEC100Y5-3 (ATEX)
Supply voltage 12 Vdc 24 Vdc 12 Vdc
Voltage tolerance ±10% ±10% ±10%
2
3
1
1
2
Inlet
Outlet
Outlet
Inlet
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