Woodward TecJet 52 Gen II User manual

EC-US-L1
Product Manual 26833
(Revision C, 11/2022)
Original Instructions
TecJet™ 52 Gen II
Installation and Operation Manual

EC-US-L1
General
Precautions
Read this entire manual and all other publications pertaining to the work to be
performed before installing, operating, or servicing this equipment.
Practice all plant and safety instructions and precautions.
Failure to follow instructions can cause personal injury and/or property damage.
Revisions
This publication may have been revised or updated since this copy was produced.
To verify that you have the latest revision, check manual 26455, Customer
Publication Cross Reference and Revision Status & Distribution Restrictions, on
the publications page of the Woodward website:
http://www.woodward.com
The latest version of most publications is available on the publications page. If
your publication is not there, please contact your customer service representative
to get the latest copy.
Proper Use
Any unauthorized modifications to or use of this equipment outside its specified
mechanical, electrical, or other operating limits may cause personal injury and/or
property damage, including damage to the equipment. Any such unauthorized
modifications: (i) constitute "misuse" and/or "negligence" within the meaning of
the product warranty thereby excluding warranty coverage for any resulting
damage, and (ii) invalidate product certifications or listings.
Translated
Publications
If the cover of this publication states "Translation of the Original Instructions"
please note:
The original source of this publication may have been updated since this
translation was made. Be sure to check manual 26455, Customer Publication
Cross Reference and Revision Status & Distribution Restrictions, to verify whether
this translation is up to date. Out-of-date translations are marked with . Always
compare with the original for technical specifications and for proper and safe
installation and operation procedures.
Revisions—A bold, black line alongside the text identifies changes in this publication since the
last revision.
Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is
believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly
undertaken.
Manual 26833
Copyright © Woodward, Inc. 2015-2022
All Rights Reserved

Manual 26833 TecJet 52 Gen II
Woodward 3
EC-US-L1
Contents
WARNINGS AND NOTICES ...............................................................................................................5
ELECTROSTATIC DISCHARGE AWARENESS......................................................................................7
REGULATORY COMPLIANCE............................................................................................................8
CHAPTER 1. GENERAL INFORMATION............................................................................................11
Introduction .................................................................................................................................................11
Connections to the TecJet 52 .....................................................................................................................11
Programmable Features .............................................................................................................................12
Service Tool Software.................................................................................................................................12
CHAPTER 2. INSTALLATION...........................................................................................................13
Introduction .................................................................................................................................................13
Mounting......................................................................................................................................................14
Outline Drawings.........................................................................................................................................16
Electrical Connections.................................................................................................................................19
Shielded Wiring...........................................................................................................................................21
Earth Ground...............................................................................................................................................21
Supply Voltage............................................................................................................................................23
Keyswitch Input...........................................................................................................................................23
PWM Input...................................................................................................................................................23
CAN ID Inputs.............................................................................................................................................24
CAN Termination.........................................................................................................................................25
CAN In.........................................................................................................................................................25
CAN Out......................................................................................................................................................27
CAN Ground................................................................................................................................................27
CAN Shield..................................................................................................................................................27
4–20 mA Analog Input.................................................................................................................................27
Status Output..............................................................................................................................................28
RS-232 Serial Communication Service Port...............................................................................................28
Auxiliary Power Output................................................................................................................................28
CHAPTER 3. DESCRIPTION OF OPERATION ....................................................................................29
TecJet 52 Specifications.............................................................................................................................43
CHAPTER 4. VALVE SIZING ...........................................................................................................46
CHAPTER 5. SERVICE TOOL..........................................................................................................51
Overview .....................................................................................................................................................51
Description..................................................................................................................................................51
Installation...................................................................................................................................................51
Troubleshooting the Driver..........................................................................................................................53
Configuring the Driver.................................................................................................................................60
CHAPTER 6. TROUBLESHOOTING ..................................................................................................70
CHAPTER 8. PRODUCT SUPPORT AND SERVICE OPTIONS ..............................................................79
Product Support Options.............................................................................................................................79
Product Service Options .............................................................................................................................79
Returning Equipment for Repair .................................................................................................................80
Replacement Parts......................................................................................................................................80
Engineering Services..................................................................................................................................81
Contacting Woodward’s Support Organization...........................................................................................81
Technical Assistance ..................................................................................................................................82
REVISION HISTORY .......................................................................................................................83
DECLARATIONS ............................................................................................................................84

Manual 26833 TecJet 52 Gen II
Woodward 4
EC-US-L1
Illustrations and Tables
ILLUSTRATIONS
Figure 2-1a. TecJet 52 Overview................................................................................................................14
Figure 2-1b. Allowable Actuator Orientations.............................................................................................15
Figure 2-1c. Allowable Bore Orientations ...................................................................................................15
Figure 2-2a. TecJet 52 Outline Drawing.....................................................................................................16
Figure 2-2b. TecJet 52 Outline Drawing.....................................................................................................17
Figure 2-3. TecJet 52 Outline Drawing - Installation...................................................................................18
Figure 2-4. TecJet 52 Outline Drawing - Preferred Mounting with Actuator Positioned Horizontally.........19
Figure 2-5. TecJet 52 Wiring Diagram........................................................................................................22
Figure 2-6. TecJet 52 PWM Wiring.............................................................................................................24
Figure 2-7. TecJet 52 CAN Wiring for Isolated/Non-Isolated Systems.......................................................26
Figure 3-1. Current Limiting Based on Temperature..................................................................................31
Figure 3-2. Address Claimed State Chart...................................................................................................37
Figure 4-1. Maximum Specialty Gas Flow Capacity of TecJet 180, 110, 85, 52 and 37............................47
Figure 4-2. Minimum Specialty Gas Flow Capacity of TecJet 180, 110, 85, 52 and 37.............................48
Figure 4-3. Maximum Natural Gas Flow Capacity of TecJet 180, 110, 85, 52 and 37...............................49
Figure 4-4. Minimum Natural Gas Flow Capacity of TecJet 180, 110, 85, 52 and 37................................50
Figure 5-1. Communication- Harness Connections....................................................................................52
Figure 5-2. Overview Screen......................................................................................................................53
Figure 5-3. Troubleshooting Screen ...........................................................................................................55
Figure 5-4. Warnings Screen......................................................................................................................56
Figure 5-5a. Errors Screen before Power Cycle.........................................................................................57
Figure 5-5b. Errors Screen after Power Cycle............................................................................................58
Figure 5-6. Configuration Screen................................................................................................................59
Figure 5-7. Identification Screen.................................................................................................................60
Figure 5-8. Edit TecJet Configuration - General.........................................................................................61
Figure 5-9a. Edit TecJet Configuration - Flow (CAN Demand)...................................................................62
Figure 5-9b. Edit TecJet Configuration - Flow (Analog Demand)...............................................................63
Figure 5-9c. Edit TecJet Configuration - Flow (PWM Demand)..................................................................64
Figure 5-10. Edit TecJet Configuration - Failed Sensor Defaults...............................................................65
Figure 5-11. Edit TecJet Configuration - Filters..........................................................................................66
Figure 5-12a. Edit TecJet Configuration - CAN (Default) ...........................................................................67
Figure 5-12b. Edit TecJet Configuration - CAN (User Configured).............................................................67
Figure 5-12c. Edit TecJet Configuration - CAN (User Configured).............................................................68
Figure 5-13. Load Configuration Settings...................................................................................................69
TABLES
Table 1-1. TecJet 85 Connections..............................................................................................................11
Table 2-1. Mating Connector.......................................................................................................................19
Table 2-2. PWM Input.................................................................................................................................23
Table 2-3. CAN ID Code Definitions...........................................................................................................24
Table 2-4. CAN In Specifications................................................................................................................25
Table 2-5. 4–20 mA Analog Input...............................................................................................................27
Table 2-6. Status Output.............................................................................................................................28
Table 2-7. RS-232 Service Port..................................................................................................................28
Table 3-1. Transmit PDOs ..........................................................................................................................38
Table 3-2. Receive PDOs ...........................................................................................................................38
Table 3-3. PDO Summary...........................................................................................................................42
Table 3-4. General Specifications...............................................................................................................43
Table 3-5. Environmental Specifications.....................................................................................................43
Table 6-1. Status Indications Troubleshooting............................................................................................70
Table 6-2. Warnings Troubleshooting.........................................................................................................72
Table 6-3. Errors Troubleshooting..............................................................................................................76

Manual 26833 TecJet 52 Gen II
Woodward 5
EC-US-L1
Warnings and Notices
Important Definitions
This is the safety alert symbol used to alert you to potential personal injury hazards. Obey all
safety messages that follow this symbol to avoid possible injury or death.
•DANGER - Indicates a hazardous situation, which if not avoided, will result in death or serious injury.
•WARNING - Indicates a hazardous situation, which if not avoided, could result in death or serious
injury.
•CAUTION - Indicates a hazardous situation, which if not avoided, could result in minor or moderate
injury.
•NOTICE - Indicates a hazard that could result in property damage only (including damage to the
control).
•IMPORTANT - Designates an operating tip or maintenance suggestion.
Lockout/Tagout
LOTO
Ensure that personnel are fully trained on LOTO procedures prior to
attempting to replace or service a TecJet on a “live” running engine.
All safety protective systems (overspeed, over temperature,
overpressure, etc.) must be in proper operational condition prior to
the start or operation of a running engine. Personnel should be
equipped with appropriate personal protective equipment to
minimize the potential for injury due to release of hot hydraulic
fluids, exposure to hot surfaces and/or moving parts, or any moving
parts that may be activated and are located in the area of control of
the TecJet.
Overspeed /
Overtemperature /
Overpressure
The engine, turbine, or other type of prime mover should be
equipped with an overspeed shutdown device to protect against
runaway or damage to the prime mover with possible personal injury,
loss of life, or property damage.
The overspeed shutdown device must be totally independent of the
prime mover control system. An overtemperature or overpressure
shutdown device may also be needed for safety, as appropriate.
Personal Protective
Equipment
The products described in this publication may present risks that
could lead to personal injury, loss of life, or property damage.
Always wear the appropriate personal protective equipment (PPE) for
the job at hand. Equipment that should be considered includes but is
not limited to:
•Eye Protection
•Hearing Protection
•Hard Hat
•Gloves
•Safety Boots
•Respirator
Always read the proper Material Safety Data Sheet (MSDS) for any
working fluid(s) and comply with recommended safety equipment.
Start-up
Be prepared to make an emergency shutdown when starting the
engine, turbine, or other type of prime mover, to protect against
runaway or overspeed with possible personal injury, loss of life, or
property damage.

Manual 26833 TecJet 52 Gen II
Woodward 6
EC-US-L1
Automotive
Applications
On- and Off-Highway Mobile Applications: Unless Woodward's
control functions as the supervisory control, customer should install
a system totally independent of the prime mover control system that
monitors for supervisory control of engine (and takes appropriate
action if supervisory control is lost) to protect against loss of engine
control with possible personal injury, loss of life, or property
damage.
IOLOCK
IOLOCK: driving I/O into a known state condition. When a control
fails to have all the conditions for normal operation, watchdog logic
drives it into an IOLOCK condition where all output circuits and
signals will default to their de-energized state as described below.
The system MUST be applied such that IOLOCK and power OFF
states will result in a SAFE condition of the controlled device.
•Microprocessor failures will send the module into an IOLOCK
state.
•Discrete outputs / relay drivers will be non-active and
de-energized.
•Analog and actuator outputs will be non-active and de-energized
with zero voltage or zero current.
Network connections like CAN stay active during IOLOCK. This is up
to the application to drive actuators controlled over network into a
safe state.
The IOLOCK state is asserted under various conditions, including:
•Watchdog detected failures
•Microprocessor failure
•PowerUp and PowerDown conditions
•System reset and hardware/software initialization
•PC tool initiated
NOTE—Additional watchdog details and any exceptions to these
failure states are specified in the related section of the product
manual.
Battery Charging
Device
To prevent damage to a control system that uses an alternator or
battery-charging device, make sure the charging device is turned off
before disconnecting the battery from the system.

Manual 26833 TecJet 52 Gen II
Woodward 7
EC-US-L1
Electrostatic Discharge Awareness
Electrostatic
Precautions
Electronic controls contain static-sensitive parts. Observe the
following precautions to prevent damage to these parts:
•Discharge body static before handling the control (with power to
the control turned off, contact a grounded surface and maintain
contact while handling the control).
•Avoid all plastic, vinyl, and Styrofoam (except antistatic
versions) around printed circuit boards.
•Do not touch the components or conductors on a printed circuit
board with your hands or with conductive devices.
To prevent damage to electronic components caused by improper
handling, read and observe the precautions in Woodward manual
82715, Guide for Handling and Protection of Electronic Controls,
Printed Circuit Boards, and Modules.
Follow these precautions when working with or near the control.
1. Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic
materials. Wear cotton or cotton-blend materials as much as possible because these do not store
static electric charges as much as synthetics.
2. Touch your finger to a grounded surface to discharge any potential before touching the control, smart
valve, or valve driver, or installing cabling connectors. Alternatively, ESD mitigation may be used as
well: ESD smocks, ankle or wrist straps and discharging to a reference grounds surface like chassis
or earth are examples of ESD mitigation.
•ESD build up can be substantial in some environments: the unit has been designed for
immunity deemed to be satisfactory for most environments. ESD levels are extremely
variable and, in some situations, may exceed the level of robustness designed into the
control. Follow all ESD precautions when handling the unit or any electronics.
oI/O pins within connectors have had ESD testing to a significant level of immunity to
ESD, however do not touch these pins if it can be avoided.
▪Discharge yourself after picking up the cable harness before installing it as a
precaution.
oThe unit is capable of not being damaged or improper operation when installed to a
level of ESD immunity for most installation as described in the EMC specifications.
Mitigation is needed beyond these specification levels.
External wiring connections for reverse-acting controls are identical
to those for direct-acting controls.

Manual 26833 TecJet 52 Gen II
Woodward 8
EC-US-L1
Regulatory Compliance
European Compliance for CE Marking:
These listings apply to stationary industrial markets only and are limited only to those units bearing the
CE Marking.
EMC Directive:
Declared to Directive 2014/30/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonization of the laws of the
Member States relating to electromagnetic compatibility (EMC).
Other European Compliance:
Compliance with the following European Directives or Standards does not qualify this product for
application of the CE marking:
Machinery Directive:
Compliant as partly completed machinery with Directive 2006/42/EC of
the European Parliament and the Council of 17 May 2006 on machinery.
Pressure Equipment
Directive:
Compliant as “SEP” per Article 4.3 to Pressure Equipment Directive
2014/68/EU on the harmonisation of the laws of the Member States
relating to the making available on the market of pressure equipment.
RoHS Directive:
Restriction of Hazardous Substances 2011/65/EU:
This product is intended to be sold and used only as equipment which is
specifically designed, and is to be installed, as part of another type of
equipment that is excluded or does not fall within the scope of this
Directive, which can fulfil its function only if it is part of that equipment,
and which can be replaced only by the same specifically designed
equipment and therefore fulfills the requirements stated in Art.2.4(c) and
as such is excluded from the scope of the Directive.
Restriction of Hazardous Substances 2011/65/EU:
This product is intended to be sold and used only as repair, updating or
upgrading of EEE (as defined in Article 3(27) of the Directive) that either
was excluded from the scope of the Directive at the time of placing on
the market (as defined in Article 4.4(e)) or which benefited from an
exemption, and which was placed on the market before that exemption
expired (per Article 4.4(f).
United Kingdom Compliance for UKCA Marking:
These listings are limited only to those units bearing the UKCA Marking.
EMC:
S.I. 2016 No. 1091: Electromagnetic Compatibility Regulations 2016 and all
applicable amendments.
Other UKCA Compliance:
Compliance with the following UKCA regulations or standards does not qualify this product for application
of the UKCA Marking:
Machinery:
S.I. 2008 No. 1597: Supply of Machinery (Safety) Regulations 2008
Pressure Equipment
(Safety) Regulations
2016:
S.I. 2016 No. 1105: Compliant to sound engineering practice per Regulation 8.
Hazardous
Substances and
Packaging:
S.I. 2020 No. 1647: The Hazardous Substances and Packaging (Legislative
Functions and Amendments) (EU Exit) Regulations 2020
This product is intended to be sold and used only as equipment which is
specifically designed, and is to be installed, as part of another type of

Manual 26833 TecJet 52 Gen II
Woodward 9
EC-US-L1
equipment that is excluded or does not fall within the scope of this Regulation,
which can fulfil its function only if it is part of that equipment, and which can be
replaced only by the same specifically designed equipment and therefore
fulfills the requirements stated in Part 2 of Schedule1 clause 16 and as such is
excluded from the scope of the Regulation.
This product is intended to be sold and used only as repair, updating or
upgrading of EEE (as defined in part 3 of schedule 1) that either was excluded
from the scope of the Directive at the time of placing on the market (as defined
in Schedule 1, part 2) or which benefited from an exemption, and which was
placed on the market before that exemption expired (per schedule 1 part 3).
North American Compliance:
These listings are limited only to those units bearing the CSA identification.
CSA:
CSA Certified for Class I, Division 2, Groups A, B, C, & D, T3 at 85 °C
Ambient for use in Canada and the United States.
Certificate 1975931
Type 4 Enclosure Watertight
This product is certified as a component for use in other equipment. The final combination is subject to
acceptance by the authority having jurisdiction or local inspection.
Special Conditions for Safe Use
The TecJet 52 wiring must be in accordance with North American Class I, Division 2, or European or
other international Zone 2, Category 3 wiring methods as applicable, and in accordance with the authority
having jurisdiction.
Field Wiring must be suitable for at least 85 °C.
Connect ground lug of TecJet 52 to earth ground.
The Ingress Protection rating of the control depends on the use of proper mating connectors. Refer to
Table 2-1 in the Installation section of this manual for information on the proper mating connectors for use
with this control.
EXPLOSION HAZARD—Do not remove covers or connect/disconnect
electrical connectors unless power has been switched off or the area
is known to be non-hazardous.
Substitution of components may impair suitability for Class I,
Division 2 or Zone 2.
Do not clean equipment unless the area is known to be non-
hazardous.
RISQUE D’EXPLOSION—Ne pas enlever les couvercles, ni
raccorder / débrancher les prises électriques, sans vous en
assurez auparavant que le système a bien été mis hors
tension; ou que vous vous situez bien dans une zone non
explosive.
La substitution de composants peut rendre ce matériel
inacceptable pour les emplacements de Classe I, Division 2
ou Zone 2.
Ne pas nettoyer l’équipement à moins de se trouver dans
un emplacement non dangereux.

Manual 26833 TecJet 52 Gen II
Woodward 10
EC-US-L1
Due to the hazardous location listing associated with this product,
proper wire type and wiring practices are critical to operation.
Do not connect any cable grounds to “instrument ground”, “control
ground”, or any non-earth ground system. Make all required
electrical connections based on the wiring diagram per Figure 2-5.

Manual 26833 TecJet 52 Gen II
Woodward 11
EC-US-L1
Chapter 1.
General Information
Introduction
The TecJet 52 product is an integrated, digitally compensated, control valve and actuator system for
metering and regulating the flow of gaseous fuels. The device is designed to accept a fuel flow demand
signal. It also incorporates feedback sensors that measure fuel pressure, temperature, and valve
differential pressure. Based on these sensor signals, the device calculates and controls the valve position
needed to produce a mass flow rate that matches the demanded fuel flow within the accuracy specified
elsewhere in this manual.
The TecJet 52 actuator includes closed-loop position control based on an internal position sensor and the
calculated position setpoint. Model-based position controller software is used to position the valve. An
integrated return spring is provided in the actuator. Upon loss of power, the return spring will drive the
valve closed within 2 seconds over the fluid operating temperature range.
This manual covers the TecJet 52 Fuel Metering Valves.
The device is intended to be mounted on or very close to the engine. The dominant application of this
valve is fuel control for gas-fueled reciprocating engines controlled by an electronic engine control
system.
Throughout the remainder of the manual, the TecJet 52 Gen II valve
and actuator system will be referred to simply as the TecJet 52.
Connections to the TecJet 52
The TecJet 52 has the following connections to the ECM (Engine Control Module), and the engine
harness:
Table 1-1. TecJet 52 Connections
Earth Ground
Provided through ground lug on housing
Power Input
18–32 Vdc measured at the TecJet 52
Key Switch Input
Contact input to switch the TecJet 52 in and out of a
low-power state
CANbus In
For a mass flow demand input
PWM
For a mass flow demand input
4–20 mA Analog
Configurable as flow demand input
CAN ID Inputs
TecJet 52 number selection for CANbus IDs
CAN Termination
Internal CAN termination resistor option
CANbus Out
Second set of CAN pins for connecting to the next CAN
device
Status Output
High-side relay/lamp driver that changes state during a
fault condition
The TecJet 52 provides serial communications connections in the main connector for program upgrades
and Service Tool interfacing by qualified service personnel. The service personnel will need to use an
external TTL to RS-232 adaptor (Woodward P/N 1249-1039) to make communications possible.

Manual 26833 TecJet 52 Gen II
Woodward 12
EC-US-L1
Programmable Features
Control setup is accomplished using a PC (personal computer), Woodward Service Tool software, and
TTL to RS-232 adaptor. The TecJet 52 is provided pre-configured with default settings and may not
require additional setup. The features identified below are described in Chapter 5. Briefly, the
programmable features include:
•Configure Demand Source
o Jenbacher CAN (Proprietary protocol)
o Analog 4–20
o PWM
o EGS-01 (Proprietary protocol)
o GECM (Proprietary protocol)
o EGS-02 (SAE J1939 protocol)
o CANopen
o CANopen PWM
•Configure General
o Fuel Gas Defaults (K, Density)
o Fuel Gas Temperature Warning Thresholds (High & Low °C)
o Fuel Gas Pressure Warning Thresholds (High & Low mbar)
o ΔP Warning Threshold (High & Low ΔP mbar)
•Configure Flow (Demand Source Dependent)
o Demand Fail Limits (ms, mA, or %)
o Scaling (High & Low mA or Duty Cycle % to Nl/s Flow)
•Configure Failed Sensor Defaults
o Fuel Gas Temperature Sensor Default Temperature (°C)
o Fuel Gas Pressure Sensor Default Downstream pressure (Table)
•Configure Filters
o ΔP Filter Time Constant (sec)
o Fuel Gas Pressure Filter Time Constant (sec)
o Fuel Gas Temperature Filter Time Constant (sec)
o Flow Demand Filter Time Constant (sec)
•Configure CAN (Demand Source Dependent)
o Baud Rate Default (kbits/s)
o Baud Rate User Configured
▪Baud Rate Prescaler
▪TSEG1
▪TSEG2
▪Synchronization Jump Width
o Heartbeat Rate
o CAN Identifiers
Service Tool Software
The TecJet Service Tool software is a Microsoft Windows based GUI (graphic user interface) used to
configure and troubleshoot the TecJet 52. The Service Tool Software is compatible with Microsoft
Windows 10, 7, and XP and gives the end user the ability to:
•Configure control settings based on application requirements
•Load the configuration into the control
•Monitor control parameters
•View and reset fault conditions
Detailed descriptions of software installation are available in Chapter 5.

Manual 26833 TecJet 52 Gen II
Woodward 13
EC-US-L1
Chapter 2.
Installation
Introduction
The TecJet 52 is designed for use in industrial stationary
applications only.
Overspeed
Overtemperature
Overpressure
The engine should be equipped with an independent fuel shut-off
device to protect against fuel leakage or damage to the engine with
possible personal injury, loss of life, or property damage.
The fuel shut off device must be totally independent of the engine
control system. An overtemperature or overpressure shutdown
device may also be needed for safety, as appropriate.
Due to typical noise levels in engine environments, hearing
protection should be worn when working on or around the TecJet 52.
The surface of this product can become hot enough or cold enough
to be a hazard. Use protective gear for product handling in these
circumstances. Temperature ratings are included in the specification
section of this manual.
Use both hands to pick up the TecJet 52. Do NOT pick up by the
cable harness, which could damage the TecJet 52, or allow it to fall,
with the possibility of personal injury.
External fire protection is not provided in the scope of this product. It
is the responsibility of the user to satisfy any applicable
requirements for their system.
The TecJet 52 valve is pressure tested at Woodward. Allowable
external leakage is less than 2 SCCM or 0.00015 kg/h.
Leak-check all gaseous fuel connections. Leaking gaseous fuel can
cause explosion hazards, property damage, or loss of life.
The TecJet 52 valve is NOT equipped with an overboard drain in the
event of gas leakage through its various seals. The valve should
therefore be used in a well-ventilated area. A methane detector
should be used if the valve will be used in an enclosed installation.

Manual 26833 TecJet 52 Gen II
Woodward 14
EC-US-L1
The TecJet 52 weighs up to 15.7 kg (35 lb). To prevent injury, some
form of lifting assistance (a lifting strap is recommended) should be
used when handling the TecJet 52.
This valve has a high torque capability and sharp elements. To
prevent serious injury, DO NOT place hands or fingers
or any object inside the valve.
Be careful when unpacking the TecJet 52. Check the assembly for signs of damage, such as bent or
dented covers, scratches, and loose or broken parts. Be especially careful not to rest the TecJet 52 on
the valve position pointer or on the actuator electrical connectors. Notify the shipper and Woodward if
damage is found.
If the TecJet 52 is to be painted, appropriate means must be used to mask the following items/areas:
•All identification and warning labels
•Main electrical connector
•Junction between the valve shaft and the valve housing (this is a dynamic junction next to the
valve position pointer)
•Breather vent on the back side of the sensor box
Mounting
TecJet 52 orientation and mounting must be designed to reduce the possibility of fuel contamination,
pooling, or build-up within the pressure sensor passages. Orientation of the valve should be with the
actuator +15/–90° relative to horizontal with the sensor module skyward. The axis of the valve bore can
be +90/–15° relative to horizontal, with +90° representing the outlet of the valve pointing skyward.
Installations with a bore axis orientation in the +15 to +90° range must incorporate means to prevent the
buildup of moisture or other liquids in the fuel train. The valve has an arrow indicating flow direction cast
into the outside of the valve housing. Washers should be placed between the valve body and any
fasteners used. Consider the strength of the mounting plate to support the 14 kg (30 lb) weight of the
TecJet 52. Refer to the outline drawings in Figures 2-2, 2-3, and 2-4 for dimensions and details relative to
the valve inlet flange and outlet flange.
Figure 2-1a. TecJet 52 Overview

Manual 26833 TecJet 52 Gen II
Woodward 15
EC-US-L1
Figure 2-1b. Allowable Actuator Orientations
Figure 2-1c. Allowable Bore Orientations
For on-engine applications, a suitable bracket must be constructed to support the weight of the valve on
the engine. See the outline drawing (Figure 2-2) for the valve mounting feet hole and hole-location details.
An optional mounting bracket is available to provide a base mounting to the TecJet (Figure 2-3). All
mounting configurations should ensure that moment loads are not applied either through installation or
thermal stress that could cause the valve to bind and lose functionality.
The TecJet 52 is not intended to support the inlet or outlet piping.
Suitable brackets must be constructed to support the valve and
piping separately to prevent damage to the TecJet.
The inlet and outlet piping of the TecJet 52 must be in accordance with ANSI/ISA-S75.02 to ensure the
flow metering accuracy specified elsewhere in this manual. However, an inlet piping length as short as 6
diameters and an outlet piping length as short as 2 diameters can typically be used with a negligible loss
in valve metering accuracy.
EXPLOSION HAZARD—Leak check all gaseous fuel connections.
Leaking gaseous fuel can cause explosion hazards, property
damage, or loss of life.

Manual 26833 TecJet 52 Gen II
Woodward 16
EC-US-L1
Outline Drawings
Reference Woodward drawing 9999-1563 rev C.
NOTES:
1. Interpret drawing per ASME 14.5-2009.
2. Dimensions are shown as inches [millimeters].
3. Total weight approximately 33.1 lbs [15.0 kg] or 34.6 lbs [15.7 kg] with optional mounting support.
4. See Figure 2-4 for optional mounting configuration.
5. All dimensions are drawn at nominal, unless noted.
Figure 2-2a. TecJet 52 Outline Drawing

Manual 26833 TecJet 52 Gen II
Woodward 17
EC-US-L1
Figure 2-2b. TecJet 52 Outline Drawing

Manual 26833 TecJet 52 Gen II
Woodward 18
EC-US-L1
OPTIONAL MOUNTING:
4 MOUNTING FEET WITH .3125-18 UNC-2A THREADED STUDS.
(MOUNTING SUPPORT WITH HARDWARE MAY BE PURCHASED AS AN OPTIONAL KIT (B)
Figure 2-3. TecJet 52 Outline Drawing - Installation

Manual 26833 TecJet 52 Gen II
Woodward 19
EC-US-L1
Figure 2-4. TecJet 52 Outline Drawing - Preferred Mounting with Actuator Positioned Horizontally
Electrical Connections
The TecJet 52 is electrically connected to the control system by the main connector shown in Figure 2-4.
The mating connector should be torqued per the value indicated in Figure 2-4. The following mating
connectors are compatible with the TecJet 52 control.
Table 2-1. Mating Connector
Supplier
Part Number
Amphenol
Amphenol Connector: P/N ACC 06E 24-28S (025)
Amphenol Contacts: P/N 10-597109-171 (CRIMP)
Amphenol Sealing Plugs P/N 10-405996-16
Cannon
Cannon Connector: P/N CA 06R 24-28S A206
Cannon Contacts: P/N 031-0560-161 (CRIMP)
Cannon Sealing Plugs: P/N 225-0017-000
Woodward
Connector Kit: P/N 6995-1021 (Connector, Contacts, Sealing Plugs)

Manual 26833 TecJet 52 Gen II
Woodward 20
EC-US-L1
EXPLOSION HAZARD—Do not remove covers or connect/disconnect
electrical connectors unless power has been switched off or the area
is known to be non-hazardous.
Substitution of components may impair suitability for Class I,
Division 2.
Do not clean equipment unless the area is known to be non-
hazardous.
RISQUE D’EXPLOSION—Ne pas enlever les couvercles, ni
raccorder / débrancher les prises électriques, sans vous en
assurez auparavant que le système a bien été mis hors
tension; ou que vous vous situez bien dans une zone non
explosive.
La substitution de composants peut rendre ce matériel
inacceptable pour les emplacements de Classe I, Division 2.
Ne pas nettoyer l’équipement à moins de se trouver dans
un emplacement non dangereux.
Wiring must be in accordance with North American Class I, Division
2, wiring methods as applicable, and in accordance with the authority
having jurisdiction.
The control will only meet ingress protection specifications while the
mating connector is installed in the unit. As such, the unit should not
be exposed to operating environments unless the mating connector
is installed.
In addition, if a wire is not used for each of the 24 pins on the control,
a sealing plug must be used in place of each missing wire. Failure to
adhere to these guidelines may result in product failure or decreased
life.
Do not connect any cable grounds to “instrument ground”, “control
ground”, or any non-earth ground system. Make all required
electrical connections based on the wiring diagram in Figure 2-5.