INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Caterpillar


Chapter 1. General Information

Usage:

The TecJetTM 52 valve/actuator 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 input signal. It also includes internal feedback sensors that measure fuel pressure, temperature, and valve differential pressure. Based on these sensor input 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 to closed within 2 seconds over the fluid operating temperature range.

This manual covers the TecJet 52 Fuel Metering Valves.

The TecJet 52 valve/actuator is intended to be mounted on-engine or very close to the engine. The dominant application of the valve is fuel control for gas-fueled reciprocating engines controlled by an electronic engine control system.

Connections to the TecJet 52

The TecJet 52 has the following connections to the ECM (Engine Control Module), and the engine harness:

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.

Programmable Features

Control setup is accomplished through the use of 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 require additional setup. The features identified below are described in Chapter 5. Briefly, the programmable features include:

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® XP, 200, NT 4.0, Me, 98 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.


Figure 1-1a. TecJet 52 Outline Drawing


Figure 1-1b. TecJet 52 Outline Drawing

Caterpillar Information System:

INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Regulatory Compliance
KENR9132-02 C3.4B Industrial Engine System "Interactive" KENR9132-02 C3.4B Industrial Engine System "Interactive"
C4.4 Industrial Engine Electrical System (For Serial Numbers 4481-UP) C4.4 Industrial Engine Electrical System (For Serial Numbers 4481-UP)
C6.6 Industrial Engine Electrical System - (Interactive) 344-6312-00 C6.6 Industrial Engine Electrical System - (Interactive) 344-6312-00
C7.1 Industrial Engine Electrical System - (Interactive) 353-5572-03, 345-9664-02 C7.1 Industrial Engine Electrical System - (Interactive) 353-5572-03, 345-9664-02
3516C Generator Set Electrical System 344-1776-01 3516C Generator Set Electrical System 344-1776-01
G3508 Engine Electrical System - (Interactive) 329-4530-07 G3508 Engine Electrical System - (Interactive) 329-4530-07
C18 MCS Marine Generator Set Electrical System C18 MCS Marine Generator Set Electrical System
C18 Marine Auxiliary Generator Set Electrical System (Interactive) 300-9410-05 (Generator), 304-9312-01 (Engine) C18 Marine Auxiliary Generator Set Electrical System (Interactive) 300-9410-05 (Generator), 304-9312-01 (Engine)
G3516B ULB Engine Electrical System - 329-4530-07 G3516B ULB Engine Electrical System - 329-4530-07
C18 Marine Engine Electrical System 255-7357-01 C18 Marine Engine Electrical System 255-7357-01
C175-16 Generator Global Design Version Electrical System C175-16 Generator Global Design Version Electrical System
INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Chapter 2. Installation
INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Chapter 3. Description of Operation
INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Chapter 4. Valve Sizing
INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Chapter 5. Service Tool
INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Chapter 6. Troubleshooting
INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Chapter 7. Maintenance
INSTALLATION AND OPERATION MANUAL FOR TECJET 52 GAS REGULATI Chapter 8. Service Options
C6.6 XQ175 Generator Set Electrical System 343-0705-04 C6.6 XQ175 Generator Set Electrical System 343-0705-04
C27 and C32 Generator with EMCP4.2 Electrical System - (Interactive) 359-3391-00 C27 and C32 Generator with EMCP4.2 Electrical System - (Interactive) 359-3391-00
C27 and C32 Generator with EMCP4.3 and EMCP4.4 Electrical System (Interactive), 364-7508-01 C27 and C32 Generator with EMCP4.3 and EMCP4.4 Electrical System (Interactive), 364-7508-01
C13 On-Highway Engine Electrical System (Interactive), 238-6712-17 (For Serial Numbers LEE9700-UP) C13 On-Highway Engine Electrical System (Interactive), 238-6712-17 (For Serial Numbers LEE9700-UP)
C15 On-Highway Engine Electrical System (For Serial Numbers SDP11500-UP and B5R341-UP) (Interactive) 265-9115-18 C15 On-Highway Engine Electrical System (For Serial Numbers SDP11500-UP and B5R341-UP) (Interactive) 265-9115-18
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