Danfoss DGS User Manual

Installation Guide
Danfoss Gas Sensor
DGS
080R9333
080R9333
© Danfoss | DCS (ADAP-KOOL®) | 2018.12
RI8SP202 | 1
Technician use only!
This unit must be installed by a suitably qualified technician who
will install this unit in accordance with these instructions and the
standards set down in their particular industry/country.
Suitably qualified operators of the unit should be aware of the
regulations and standards set down by their industry/country for
the operation of this unit.
These notes are only intended as a guide and the manufacturer
bears no responsibility for the installation or operation of this unit.
Failure to install and operate the unit in accordance with these
instructions and with industry guidelines may cause serious injury
including death and the manufacturer will not be held responsible
in this regard.
It is the installer’s responsibility to adequately ensure that the
equipment is installed correctly and set up accordingly based on
the environment and the application in which the products are
being used.
ENGLISH
Please observe that DGS works as a safety device securing a
reaction to a detected high gas concentration. If a leakage
occurs, the DGS will provide alarm functions, but it will not
solve or take care of the leakage root cause itself.
Regular Test
To maintain product performance and comply with the local
requirements the DGS must be tested regularly.
DGS's are provided with a test button that may be activated to
validate the alarm reactions.
Additionally the sensors must be tested by either bump test or
calibration.
Danfoss recommends the following minimum calibration intervals:
DGS-IR: 60 months
DGS-SC: 12 months
DGS-PE: 6 months
With DGS-IR it is recommended to do an annual bump test in years
without calibration.
Check local regulations on calibration or testing requirements.
After exposure to a substantial gas leak, the sensor should be
checked by bump test or calibration and replaced if necessary.
Location:
For all gas’ heavier than air, Danfoss recommends locating the
sensor head app. 30cm (12") above the floor and if possible in the
air flow. All gas’ measured with these DGS-sensors are heavier than
air: HFC grp 1, HFC grp 2, HFC grp 3, CO2 and Propane.
For further details on Test and Location please see the Danfoss Gas
Detection application guide, DKRCI.PA.S00.A-.02
Dimensions and appearance
1

Danfoss DGS Specifications

General

Brand	Danfoss
Model	DGS
Category	Accessories
Language	English

Summary

Installation Guide

Technician Use Only

Instructions for qualified technicians regarding installation and operation of the DGS unit.

Safety Device Functionality

DGS acts as a safety device for gas detection, providing alarms but not fixing the source.

Regular Testing and Calibration

Regular testing (bump/calibration) is required for product performance and local compliance.

Sensor Location Recommendations

Recommended sensor head placement for gases heavier than air.

Dimensions and Appearance Overview

Visual representation of the DGS unit's dimensions and external appearance.

Cable Gland Opening Procedure

Status LED and Buzzer/Light Indicators

Explains the meaning of LED and Buzzer/Light indicators for status and errors.

Ackn.-/Test Button and DI_01 Functions

Details the function of the Ackn.-/Test button and DI_01 for testing and acknowledgment.

External Strobe & Horn Power Supply

Information on using the 24Vdc supply for external strobe and horn connections.

Jumper Configuration Settings

Explanation of how jumpers JP4 and JP5 affect communication and output settings.

DGS Installation and Configuration

Mounting and Wiring

Instructions for physically mounting the DGS unit and its wiring connections.

System Integration Details

Guidelines for integrating the DGS with Danfoss system managers or general BMS.

Sensor Replacement Guide

Procedure and information for replacing a DGS sensor unit.

DGS Installation Testing Methods

Optical Installation Check

Visual inspection of cable type and mounting height for correct installation.

Functional Test Procedure

How to perform a functional test by pressing the test button and checking outputs.

Zero-Point Test Procedure

Performing a zero-point test using fresh outdoor air for calibration.

Reference Gas Trip Test

Procedure for testing alarm functions using reference gas.

Sensor Specification Comparison

How the DGS software verifies sensor compatibility with its own specification.

Menu Survey Parameters

DGS Troubleshooting