Honeywell Maxon CMA11 Instruction Manual Download Page 2

GAS ELECTRO-MECHANICAL VALVES

32M-95001—04

2

E - m - 05/22

WARNING

The installation, operation and maintenance 

instructions contain important information that 

must be read and followed by anyone operating 

or servicing this product. Do not operate or 

service this equipment unless the instructions 

have been read. IMPROPER INSTALLATION OR 

USE OF THIS PRODUCT COULD RESULT IN 

BODILY INJURY OR DEATH.

Description

MAXON electro-mechanical valves are electrically 

actuated fuel shut-off valves. The valves are designed for a 

fast acting return to the at rest position upon removal of a 

control voltage signal. Motorized automatic and manual 

actuators are available depending on application needs. In 

addition, normally-closed and normally-open options are 

available. The normally-closed versions will shut off flow 

when de-energized and pass flow when energized. The 

normally-open versions will shut off flow when energized 

and pass flow when de-energized. Electro-mechanical 

valves are also offered in configurations that meet 

hazardous locations.

Nameplate and abbreviations

Consult the nameplate of your valve. This lists the 

maximum operating pressure, temperature limitations, 

voltage requirements and service conditions of your 

specific valve. Do not exceed nameplate ratings.

Abbreviation or symbol

Description

M.O.P.

Maximum operating pressure

OPENING

Valve opening time (for automatic valves only). Units shown in seconds.

Solenoid/clutch voltage and frequency

Motor voltage and frequency

T

AMB

Ambient temperature range

T

F

Fluid temperature range

SHUT

Visual indication that valve is shut

OPEN

Visual indication that valve is open

SPDT (HS)

Single pole double throw hermetically-sealed switch(es)

SPDT

Single pole double throw switch(es)

SPDT (HC)

Single pole double throw high capacity switch(es) (used when DC motors are 

ordered)

DPDT

Double pole double throw switch(es)

GENERAL PURPOSE AREA Designates components used in general purpose areas

DIVISION 2 AREA

Designates components used in Division 2 hazardous locations areas

Valve is shut

Valve is partially open

Valve is full open

VOS-1/2

Valve open switch(es)

VCS-1/2

Valve closed switch(es); proof of closure

M

Summary of Contents for Maxon CMA11

Page 1: ...UROPEAN SALES OFFICE IMPORTER BELGIUM Maxon International BVBA Luchthavenlaan 16 18 1800 Vilvoorde Belgium Tel 32 2 255 09 09 Fax 32 2 251 82 41 Please read the operating and mounting instructions before using the equipment Install the equipment in compliance with the prevailing regulations Bedrijfs en montagehandleiding voor gebruik goed lezen Apparaat moet volgens de geldende voorschriften worde...

Page 2: ...e also offered in configurations that meet hazardous locations Nameplate and abbreviations Consult the nameplate of your valve This lists the maximum operating pressure temperature limitations voltage requirements and service conditions of your specific valve Do not exceed nameplate ratings Abbreviation or symbol Description M O P Maximum operating pressure OPENING Valve opening time for automatic...

Page 3: ...alve type Item number Description Torque N m S Valves DN20 DN40 3 4 1 1 2 1 Access cover screws 1 4 20 8 1 N m 6 Actuator bolts 5 16 18 18 N m 9 Terminal block cover screws 1 4 20 8 1 N m 11 Motor cover screws 10 24 4 7 N m S Valves DN50 DN80 2 3 1 Access cover screws 1 4 20 8 1 N m 6 Actuator bolts 3 8 16 27 N m 9 Terminal block cover screws 1 4 20 8 1 N m 11 Motor cover screws 10 24 4 7 N m C Va...

Page 4: ... electrical wiring system install a conduit seal fitting at the actuator conduit hub 5 Maintain integrity of the electro mechanical actuator enclosures by using the appropriate electrical connec tors for the 2 3 4 NPT conduit threaded connec tions The electrical enclosure is NEMA 4 rated with an option for NEMA 4X 6 All access cover plate screws should be tightened using a torque wrench in an alte...

Page 5: ... 213 Class I Div 2 Groups ABCD Class II Div 2 Groups FG Class III T4 60 C T3C 60 C United Kingdom GAR LVD Compliance BSEN 161 BSEN13774 TP 6 16 Not Applicable European GAR LVD EMC Compliance BSEN 161 BSEN13774 TP 6 16 Not Applicable Not Applicable United Kingdom PED Compliance Not Applicable Not Applicable European PED Compliance Not Applicable Not Applicable SIL IEC 61508 Not Applicable IEC 61508...

Page 6: ...ycles to be completed without failure as shown in the chart below UL UL 429 CSA CSA 6 5 FM FM 7400 European EN161 Automatic Series MA11 MA12 100 000 100 000 20 000 DN25 200 000 DN80 100 000 DN150 50 000 Manual Series MM11 MM12 6 000 20 000 20 000 No special requirements Vent valves Series MA21 MA22 MM21 MM22 6 000 No special requirements No special requirements No special requirements ...

Page 7: ...lly closed shut off valve 2 Normally open vent valve Area classification 1 General purpose 2 Non incendive Class I II and III Division 2 4 Valve body only 400 600 high capacity valves only Body connection A ANSI NPT threaded B ANSI flanged PN20 C ISO 7 1 threaded D DIN PN16 flanged E Socket welded nipple F Socket welded nipple w Class 150 flange ISO 7005 PN20 H EN1092 1 PN16 flanged ISO 7005 1 PN1...

Page 8: ...are properly positioned and that the open shut indicator moves freely Failure to correct any such misalignment can result in extensive damage to the internal mechanism of your valve 12 Energize valve and cycle several times from closed to full open position Also electrically trip the valve in a partially opened position to prove valve operates prop erly 13 Replace and secure terminal block cover p...

Page 9: ...4 C Models and 6 S Model Fig 3 Automatic reset actuator DN100 DN150 4 6 H Models NC COM 1 BLACK TO 3 BLACK TO BLACK TO MOTOR TERMINAL 1 TERMINAL 3 NO 1 2 12 11 10 9 8 7 6 5 4 3 2 1 TO CLUTCH VOS switch wand should be actuated from above VCS switch wand should be actuated from below Mounting bracket A Mounting bracket B VCS switch mounts on back of bracket Bracket Mounting Slots 2 6 1 1 2 1 1 4 3 4...

Page 10: ...ent Functional Testing of MAXON Shut off Valves 10 35 2 at www docuthek com Any valve that exceeds the allowable leakage as set forth by your local codes or insurance requirements should be removed from service and your MAXON representative should be contacted Actuator assemblycomponents require no field lubrication and should never be oiled Auxiliary switches solenoids motors clutches or circuit ...

Page 11: ...2 MA21 and MA22 Electric Actuated Valves spring return Full stroke performance FO F SR Normally Open Vent Series MA11 MA12 MA21 and MA22 Electric Actuated Valves spring return IEC 61508 Failure Rates in FIT Failure Category sd su dd du FC D SR 0 Fit 699 FIT 0 FIT 1137 FIT FC F SR 0 FIT 1244 FIT 0 FIT 592 FIT FO F SR 0 FIT 1312 FIT 0 FIT 524 FIT FC D SR Normally Close Shut Off Series MM11 MM12 MM21...

Page 12: ... ThermalSolutions honeywell com or contact your Honeywell Sales Engineer Honeywell MAXON branded products 201 E 18th Street Muncie IN 47302 USA www maxoncorp com Honeywell Process Solutions Honeywell Thermal Solutions HTS 1250 West Sam Houston Parkway South Houston TX 77042 ThermalSolutions honeywell U S Registered Trademark 2022 Honeywell International Inc 32M 95001 04 metric e05 22 EAS 50116776 ...

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