A & H AMFLOW A2-ACM Manual

Amflow®
A & H Enterprises, Inc.
11812 NE 116th Street
TEL:
+425.883.4040
Kirkland, WA 98034 USA
FAX:
+425.823.1962
www.amflow.com
EMAIL:
[e-mail]
INSTALLATION, OPERATION & SERVICE MANUAL
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 1 of 35
A & H Enterprises, Inc. reserves the right to make modifications and/or improvements to Amflow®products
without prior notice.
Explanation of Graphic Symbols
DANGER AND/OR WARNING
The exclamation point within an equilateral triangle surrounded by red is intended to alert the user to the presence of
important operating and maintenance instructions that may cause personal injury or harm to the system.
CAUTION AND/OR IMPORTANT
The exclamation point within an equilateral triangle that is solid yellow with an exclamation point is intended to alert the user
to use caution or contains important information.
AMFLOW®
A2-ACM VALVE ACTUATOR
(BELT DRIVE)
Part Number: 00000222-0501
NOTE
Reference the “As Built” data sheet supplied with order for specific actuator configuration.

AMFLOW®
A2-ACM Installation, Operation & Service Manual
TABLE OF CONTENTS
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 2 of 35
SECTION 1: INFORMATION .........................................................................................................................................................................................4
1.01 DESCRIPTION...................................................................................................................................................................................................4
1.02 DESIGN FEATURES..........................................................................................................................................................................................4
1.03 MECHANICAL FEATURES ................................................................................................................................................................................4
1.04 COMMUNICATION PROTOCOLS......................................................................................................................................................................4
1.05 SAFETY INFORMATION....................................................................................................................................................................................5
1.06 ASSEMBLY VIEW..............................................................................................................................................................................................5
1.07 ASSEMBLY VIEW: Transparent.........................................................................................................................................................................6
1.08 GA DRAWING....................................................................................................................................................................................................7
1.09 FULL VIEW........................................................................................................................................................................................................8
1.10 CUT-AWAY VIEW: Belt Drive Assembly (Red Box) ..........................................................................................................................................9
1.11 EXPLODED VIEW: Belt Drive Assembly (Red Box)..........................................................................................................................................10
1.11a BOM: Belt Drive Assembly (Red Box).............................................................................................................................................................11
1.12 ASSEMBLY VIEW: Motor Housing Assembly .................................................................................................................................................13
1.12a EXPLODED VIEW: Motor Housing Assembly.................................................................................................................................................14
1.12b BOM: Motor Housing Assembly .....................................................................................................................................................................15
1.13 CUT-AWAY VIEW: Panel Mount......................................................................................................................................................................16
1.13a PANEL MOUNT: Cut-out Dimensions.............................................................................................................................................................17
SECTION 2: INSTALLATION: Actuator .....................................................................................................................................................................18
2.01 INSTALLATION PRECAUTIONS......................................................................................................................................................................18
2.02 TYPICAL A2 ACTUATOR PANEL INSTALLATION ...........................................................................................................................................18
2.03 INSTALLATION: Tools ....................................................................................................................................................................................18
2.04 INSTALLATION PROCEDURE: Actuator .........................................................................................................................................................19
SECTION 3: INSTALLATION: Valve ..........................................................................................................................................................................20
3.01 VALVE INSTALLATION PRECAUTIONS ..........................................................................................................................................................20
3.02 INSTALLATION PROCEDURE: Valve to Actuator.............................................................................................................................................20
SECTION 4: SERVICE: Valve Removal .....................................................................................................................................................................21
SECTION 5: SERVICE: Adjustments.........................................................................................................................................................................22
5.01 CHECK TORQUE ............................................................................................................................................................................................22
5.02 TORQUE ADJUSTMENT .................................................................................................................................................................................23
SECTION 6: SERVICE: REPLACEMENTS - Gaskets.................................................................................................................................................24
6.01 REPLACEMENT: Front Gasket........................................................................................................................................................................24
6.02 REPLACEMENT: Motor Gasket.......................................................................................................................................................................25
SECTION 7: SERVICE: REPLACEMENTS .................................................................................................................................................................26
7.01 REPLACEMENT: Set Screw............................................................................................................................................................................26
7.02 REPLACEMENT: Circuit Board........................................................................................................................................................................26
SECTION 8: SERVICE: Clutch Drive Components....................................................................................................................................................27
8.01 CLUTCH DRIVE: Disassembly & Replacement ................................................................................................................................................27

AMFLOW®
A2-ACM Installation, Operation & Service Manual
TABLE OF CONTENTS
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 3 of 35
SECTION 9: SERVICE: Pulley Assembly ..................................................................................................................................................................29
9.01 REPLACEMENT: Bearing................................................................................................................................................................................30
9.02 REPLACEMENT: Belleville Springs .................................................................................................................................................................30
9.03 REPLACEMENT: Pulley Belt ...........................................................................................................................................................................31
SECTION 11: TROUBLESHOOTING...........................................................................................................................................................................32
11.01 No Power.......................................................................................................................................................................................................32
11.02 Torque Slippage.............................................................................................................................................................................................32
11.03 Unable to Obtain Newton Meter Reading.........................................................................................................................................................32
11.04 Broken Drive Pin ............................................................................................................................................................................................32
11.05 Inaccurate Turn Count - Valve ........................................................................................................................................................................32
11.06 Clutch Assembly Slippage ..............................................................................................................................................................................32
11.07 Valve Not Fully Engaged in Clutch Assembly ..................................................................................................................................................32
11.08 Handle Torque Adjustment .............................................................................................................................................................................32
STANDARDS & CERTIFICATIONS..............................................................................................................................................................................33
LIMITED WARRANTY..................................................................................................................................................................................................34
END OF SECTION

AMFLOW®
A2-ACM Installation, Operation & Service Manual
INFORMATION
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 4 of 35
SECTION 1: INFORMATION
1.01 DESCRIPTION
The Amflow®A2-ACM Actuator is a DC gear driven motor actuator designed to accommodate a variety of
Amflow®products in hazardous area usage. Part compatibility includes; AM7 Series, AM8, AM11A flow control
valves and the PR7 Series and PR-HF-SSSP back pressure regulators.
The Amflow®A2-ACM Actuator is designed to be panel mounted, reference Section 1.09 and 1.7. Note that the
orientation is not important. Once the Amflow®A2-ACM Actuator is installed the valve can be screwed onto the
valve ADAPTER and locked in place with a 6mm set screw. The Inlet and Outlet ports of the valve will then need
to be connected to the system.
1.02 DESIGN FEATURES
Normal module operation includes valve position, current limit, pressure & flow feedback.
Manual over-ride lever.
Low maintenance.
Environmentally sealed.
1.03 MECHANICAL FEATURES
Enclosure: 316L Stainless Steel with powder coating
Adjustable Torque Setting
ATEX Certification: DNV 2007 OSL ATEX-1498
Certification Category: II 2 G Ex de IIC T4
Degree of Protection: IP66
Weight: 33 lbs. (15 Kg)
Optional Cable Glands: M20x1.5
Amflow®A2-ACM Actuator: Electrical Specifications
Motor
Watts
Max.
Operating
Current
Max
In-Rush
Current
Manual
Override
Communication
A2-ACM
00000222-0501-014
DC
Gear
24 VDC
30 Watts
1.25 amps
(continuous)
3.0 amps
Yes
Industrial Ethernet
Hart / 4-20mA
H1 FOUNDATION fieldbus
Modbus RTU / RS485
Modbus TCP
1.04 COMMUNICATION PROTOCOLS
Circuit board: Main motherboard with interchangeable daughter boards.
Remote access from host computer for control, monitoring, and configuration.
Available Communication Protocols:
INDUSTRIAL ETHERNET
HART/4-20mA
H1 FOUNDATION fieldbus
MODBUS RTU / RS485
MODBUS TCP
Ethernet Protocol: IEEE 802.3 - 10T/100T
These protocols provide ease of use in the field with their own embedded web pages eliminating third party
communication devices. Refer to the Circuit Board Manual provided with order for information and issues
regarding communication.

AMFLOW®
A2-ACM Installation, Operation & Service Manual
INFORMATION
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 5 of 35
1.05 SAFETY INFORMATION
SAFETY INFORMATION
Follow IEC when working with electrical units.
When handling product avoid dropping, damaging, or submerging.
Ensure proper wiring.
Person(s) handling circuit board should be properly grounded.
Do not open unit while energized.
1.06 ASSEMBLY VIEW
Amflow®A2-ACM Actuator
Transparent View
Amflow®A2-ACM Actuator
Amflow®A2-ACM Actuator
Shown with
Motor Housing

AMFLOW®
A2-ACM Installation, Operation & Service Manual
INFORMATION
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 6 of 35
1.07 ASSEMBLY VIEW: Transparent
AMFLOW®A2-ACM ACTUATOR
Transparent View with Motor Housing
AMFLOW®A2-ACM ACTUATOR
Transparent View with Motor Housing
and Optional Cable Glands

AMFLOW®
A2-ACM Installation, Operation & Service Manual
INFORMATION
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 7 of 35
1.08 GA DRAWING

AMFLOW®
A2-ACM Installation, Operation & Service Manual
INFORMATION
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 8 of 35
1.09 FULL VIEW
BASE PLATE
HANDLE ASSY
ADJUSTMENT
KNOB
DC MOTOR
Ex MOTOR HOUSING ASSEMBLY
ACM CIRCUIT BOARD
DIN TERMINAL BLOCK
LINE BUSHINGS
BELT
PULLEY
CARRIER
ASSEMBLY
RED COVER HOUSING
EExe COVER
EExe GASKET
EExe CARRIER
FRONT GASKET
MOTOR GASKET

AMFLOW®
A2-ACM Installation, Operation & Service Manual
INFORMATION
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 9 of 35
1.10 CUT-AWAY VIEW: Belt Drive Assembly (Red Box)
M4x8 PANHEAD
SCREW
M4x8 PANHEAD
SCREW
M3x10 PANHEAD
SCREW
ADJUSTMENT KNOB
M6x10 PANHEAD
SCREW
PLUG COVER
SET SCREW
BASE PLATE
M6x12 FLATHEAD
SCREW
PULLEY BELT
CLUTCH ASSEMBLY
PULLEY
COVER HOUSING
HANDLE
BELLEVILLE SPRINGS
BELLEVILLE SPRINGS

AMFLOW®
A2-ACM Installation, Operation & Service Manual
INFORMATION
Copyright©2015 A & H Enterprises, Inc. All rights reserved
US & INTERNATIONAL PATENTS PENDING
00000222-0904-000 * Rev. C, 09/15
Page 10 of 35
1.11 EXPLODED VIEW: Belt Drive Assembly (Red Box)