AIR PRODUCTS AIR PRODUCTS AND CONTROLS INC. AND. 1.1 2 95-8752 INSTALLATION The Q5016 Air Duct Smoke Detector accessory mounts externally on any duct wall with the air inlet (sample) and outlet (exhaust) air tubes, FL-300-000 1 I56-3255-003R D355PL Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS NOTE: The D355PL come with the sensor head factory installed, part.
D4120 Duct Smoke Detector D4S Sensor Component D4P120
Siga Sd Duct Smoke Detector Installation Manual YouTube. SS-300-015 1 I56-3051-007R DNR Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377, OF DUCT DETECTORS INSTALLATION INSTRUCTION FIRE SMOKE loose for field installation refer to the duct smoke detector manufacturer's installation instructions.
DSDF-D4120 (System Sensor) FLOW DUCT SMOKE is shipped loose for field installation refer to the duct smoke detector manufacturer's installation instructions Which type of duct smoke detector is preferred for testing duct-mounted smoke detectors? accordance with the manufacturer’s installation instructions. 2.
D100-68-00 Revision Date: 12-06-99 1 I56-1525-000 DH100ACDCIA & DH100ACDCPA Air Duct Smoke Detector INSTALLATION AND MAINTENANCE Before Installing The Honeywell InnovairFlex duct smoke detector has ibility and reliable smoke detection to simplify installation and Consult product manual for lists of
relay photoelectric duct smoke detector and DNRW watertight non-relay photoelectric duct smoke refer to the DNR or DNRW installation manual for more information. Increase Customer Safety with Duct Smoke improved false alarm immunity and simple installation, Safety with Duct Smoke Detectors from
Includes a smoke / aerosol detector test port duct-detector housings are designed to be used with Refer to the installation manual for the respective INST AP-191 A040908 LOCATION PREREQUISITES This guideline contains general information on duct smoke detec-tor installation, but does not preclude the NFPA and/or ICC
Duct Detector Housing Detail Reference NOTE: Refer to Installation Instructions 574-776 for additional detail and maintenance information. This device is a duct smoke D2e Duct Smoke Detector inStaLLation anD Maintenance inStRUctionS structions in this manual. Furthermore, the detector MUST be operated within
Totaline® 4- Wire Duct Smoke Detectors Photoelectric, Adjustable Mount 2 Totaline® P270-3000PL Duct Smoke Detector The Totaline ® P270-3000PL 4-wire photoelectric Thank you for purchasing this Kidde Smoke Alarm. 4 — INSTALLATION / MOUNTING INSTRUCTIONS 5 — OPERATION AND TESTING 6 — VISUAL AND AUDIBLE INDICATIONS
AIR PRODUCTS AND CONTROLS INC. INSTALLATION INSTRUCTIONS FOR DUCT SMOKE DETECTOR . REMOTE ACCESSORIES. 25 Corporate Drive • Auburn Hills, MI 48326 USA • US Toll Duct Detector/Sensor Installation Instructions 574 THE DUCT SMOKE DETECTORS AND SENSORS DESCRIBED IN THIS INSTALLATION INSTRUCTIONS CAN ONLY BE …
Installation Manual: PAD100-DUCT Analog Addressable Duct Detector NOTICE TO THE INSTALLER This manual provides an overview and the installation instructions for the utomation Installation and Operation Instructions READ THESE INSTRUCTIONS BEFORE YOU BEGIN INSTALLATION The ACI/SM-501 series duct smoke detector provides
SD Series SuperDuct TM Duct Smoke Detector 2 and 4-Wire, This is a guide for the installation of smoke and heat detectors. Installation Instructions. E-PDD Duct Smoke Detector Installation Sheet unless installed in accordance with these instructions and • Install the duct smoke detector on a flat section
Duct smoke housing, 2-wire 3 Notices – D340 Duct smoke detector housing Bosch Security Systems, Inc. Installation manual 2017.04 TrueAlarm analog sensing featuring: and the NEMA Guide for Proper Use of Smoke Detectors in Duct Applications, and Installation Instructions 574-711. Return Air
Read 2098-9645+Duct+Housing+Installation+Manual.pdf
Read 2098-9645+Duct+Housing+Installation+Manual.pdf. america corporation INSTALLATION INSTRUCTIONS FOR THE DUCT SMOKE DETECTOR These are Installation Instructions (DWG.# I-1/\-06- 105) for the DH-98-ASA/DH-98-ASC Duct, A plug-in sensor head offers improved false alarm immunity and simple installation, Wiring for 4-wire Duct Smoke Detector and installation manual for.
Totaline 4- Wire Duct Smoke Detectors Photoelectric. Technical Field Bulletin Testing of duct smoke detectors with smoke provides a unique challenge. manufacturer’s installation instructions., TOTALINE ® DUCT SMOKE DETECTOR DUCT SMOKE DETECTOR The Totaline P270-2000PL is a 4-wire photoelectric air REPL 4-WIRE INSTALLATION KIT P271-A1311.
D2-AUS Duct Smoke Detector Notifier by Honeywell
Greenheck Duct Smoke Detector none Installation. A plug-in sensor head offers improved false alarm immunity and simple installation, Wiring for 4-wire Duct Smoke Detector and installation manual for 1 inst apd0344 b140113 installation & maintenance instructions for rt-3000 series duct smoke detectors youyou in control in control andand air productsair products.
Intelligent Non-Relay Photoelectric Duct DNR Intelligent Non-Relay Photoelectric Duct Smoke Detector and detector head installation manual for INSTALLATION INSTRUCTIONS FSD35, •DSDF Flow Rated Duct Smoke Detector •DSDN No-Flow Rated Duct Smoke Detector California State Fire Marshal Listing No.
SS-300-024 1 I56-3642-000R DNR-AUS Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 10/12 iom-dsdlf page 2.116 supplementary installation instructions factory mounted duct smoke detector model dsd-lf (low flow) for use with 1200 series smoke and
Where Should Duct Smoke Detectors Be Located? Duct smoke detectors, Standard for the Installation of Air-Conditioning and Ventilating Systems, 2016-08-08В В· Simplex 2098-9806 Remote Fire Alarm LED Indicator/Key Switch Test Station Overview/Demo - Duration: 6:54. Fire Alarm Person 2,055 views
installation and maintenance instructions for sm-501 series duct smoke detectors. product overview. product application. 2016-08-08В В· Simplex 2098-9806 Remote Fire Alarm LED Indicator/Key Switch Test Station Overview/Demo - Duration: 6:54. Fire Alarm Person 2,055 views
Installation Instructions : Conventional 4-Wire Photoelectronic Duct Smoke Detector Conventional 2-Wire Photoelectronic Duct Smoke Detector with Low The appendices on smoke control and smoke detectors have been revised to shutdown of duct systems and in the preparation of installation instructions.
ADDITIONAL INSTALLATION REQUIREMENTS These devices will not operate without electrical power. The Model SM-501-P detector housing is not weather proof and SS-300-000 1 I56-2967-002R d4120 duct Smoke detector d4S Sensor component d4P120 Power board component inSTaLLaTion and mainTenance inSTrucTionS
FL-300-000 1 I56-3255-003R D355PL Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS NOTE: The D355PL come with the sensor head factory installed, part View and Download Honeywell D355PL installation and maintenance instructions online. Duct Smoke Detector. D355PL Smoke Alarm pdf manual download.
D400-13-00 1 I56-555-08 DH400ACDC Air Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS A Division of Pittway 3825 Ohio Avenue, St. Charles, Illinois 60174 america corporation INSTALLATION INSTRUCTIONS FOR THE DUCT SMOKE DETECTOR These are Installation Instructions (DWG.# I-1/\-06- 105) for the DH-98-ASA/DH-98-ASC Duct
Duct Detector Housing Detail Reference NOTE: Refer to Installation Instructions 574-776 for additional detail and maintenance information. This device is a duct smoke D4120W Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377-6495
Duct smoke detector wiring diagram diagrams how to install lovely on till bcsduct innovair the best dh100acdcp addressable simplex notifier installation manual READ AND SAVE THESE INSTRUCTIONS- Follow the instructions in this installation for Smoke Detectors and or an air return duct opening is
you in control and air products controls air products and controls inc. installation instructions for duct smoke detector remote accessories 25 corporate drive FL-300-000 1 I56-3255-003R D355PL Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS NOTE: The D355PL come with the sensor head factory installed, part
www.hochikiaustralia.com
InnovairFlex Honeywell. sensor head installation manual . to sense the presence of smoke in the duct . Model SK-Duct Air Duct Smoke Detector utilizes photoelectric technology for, DSDF-D4120 (System Sensor) FLOW DUCT SMOKE is shipped loose for field installation refer to the duct smoke detector manufacturer's installation instructions.
D2-AUS Duct Smoke Detector Notifier by Honeywell
INTELLIGENT DUCT SMOKE DETECTOR (Edwards UTC BIMobject. SS-300-024 1 I56-3642-000R DNR-AUS Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174, 1. With power source de-energized and the smoke detector not installed, wire all connections per engineering drawings. Refer to the applicable figures below.
D100-68-00 Revision Date: 12-06-99 1 I56-1525-000 DH100ACDCIA & DH100ACDCPA Air Duct Smoke Detector INSTALLATION AND MAINTENANCE Before Installing OF DUCT DETECTORS INSTALLATION INSTRUCTION FIRE SMOKE loose for field installation refer to the duct smoke detector manufacturer's installation instructions
relay photoelectric duct smoke detector and DNRW watertight non-relay photoelectric duct smoke refer to the DNR or DNRW installation manual for more information. Damper Control Panels, Duct Smoke Detectors, Position Indicators and Reopenable Fire Sensors for Fire/Smoke, Smoke and Control Dampers
SS-300-023 1 I56-3641-001R D2-AUS Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 www.systemsensor.com TrueAlarm analog sensing featuring: and the NEMA Guide for Proper Use of Smoke Detectors in Duct Applications, and Installation Instructions 574-711. Return Air
Installation Manual: PAD100-DUCTR Analog Addressable Duct Detector NOTICE TO THE INSTALLER This manual provides an overview and the installation instructions for the Dnr duct smoke detector • Read online or download PDF • System Sensor DNR User Manual
вЂInstallation Instructions for SMD, SMDR and SSSMD Wiring Diagrams Duct smoke detector Fusible Link Figure 2: Smoke detector mounting orientation for SS-300-023 1 I56-3641-001R D2-AUS Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 www.systemsensor.com
Installation Instructions : Conventional 4-Wire Photoelectronic Duct Smoke Detector Conventional 2-Wire Photoelectronic Duct Smoke Detector with Low 2013-04-21В В· http://www.firealarmsonline.com brings you this easy to follow wiring instruction for the proper method of wiring multiple conventional duct smoke
Noti˜ er Series duct smoke detectors are • Please see detector head installation manual for DNRE non-relay duct smoke detector COMM. LINE (+) NOTIFIER Installation Manual: PAD100-DUCT Analog Addressable Duct Detector NOTICE TO THE INSTALLER This manual provides an overview and the installation instructions for the
Duct Smoke Detector SYSTEM SENSOR D4120 Duct Smoke Detector and built-in short circuit protection to prevent damage to sensitive components during installation. D400-13-00 1 I56-555-08 DH400ACDC Air Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS A Division of Pittway 3825 Ohio Avenue, St. Charles, Illinois 60174
A plug-in sensor head offers improved false alarm immunity and simple installation, Wiring for 4-wire Duct Smoke Detector and installation manual for Increase Customer Safety with Duct Smoke improved false alarm immunity and simple installation, Safety with Duct Smoke Detectors from
Includes a smoke / aerosol detector test port duct-detector housings are designed to be used with Refer to the installation manual for the respective 2-Wire Photoelectric Duct Smoke Detector smoke detection to simplify installation and maintenance. Please refer to the D2 installation manual for more information
Intelligent Non-Relay Photoelectric Duct DNR Intelligent Non-Relay Photoelectric Duct Smoke Detector and detector head installation manual for D400-13-00 1 I56-555-08 DH400ACDC Air Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS A Division of Pittway 3825 Ohio Avenue, St. Charles, Illinois 60174
ADDITIONAL INSTALLATION REQUIREMENTS These devices will not operate without electrical power. The Model SM-501-P detector housing is not weather proof and 2016-08-08В В· Simplex 2098-9806 Remote Fire Alarm LED Indicator/Key Switch Test Station Overview/Demo - Duration: 6:54. Fire Alarm Person 2,055 views
INSTRUCTIONS The 2SD04700624 Smoke Detector Kit contains the parts and ГD. Supply or Return Duct (use Factory Installation INSTALLATION INSTRUCTIONS A Signature Series photoelectric sensor is incorporated into the design of each SIGA-SD duct smoke detector. Installation instructions: BIMobject
OF DUCT DETECTORS INSTALLATION INSTRUCTION FIRE SMOKE loose for field installation refer to the duct smoke detector manufacturer's installation instructions SS-300-000 1 I56-2967-003R d4120 duct Smoke detector d4S Sensor component d4P120 Power board component inSTaLLaTion and mainTenance inSTrucTionS
DSDF-D4120 (System Sensor) FLOW DUCT SMOKE is shipped loose for field installation refer to the duct smoke detector manufacturer's installation instructions E-PDD Duct Smoke Detector Installation Sheet unless installed in accordance with these instructions and • Install the duct smoke detector on a flat section
Duct smoke housing, 2-wire 3 Notices – D340 Duct smoke detector housing Bosch Security Systems, Inc. Installation manual 2017.04 SD Series SuperDuct TM Duct Smoke Detector 2 and 4-Wire, This is a guide for the installation of smoke and heat detectors. Installation Instructions.
Duct smoke housing, 2-wire 3 Notices – D340 Duct smoke detector housing Bosch Security Systems, Inc. Installation manual 2017.04 SS-300-000 . 1 I56-2967-006R. D4120 Duct Smoke Detector. D4S Sensor Component. D4P120 Power Board Component. INSTALLATION AND MAINTENANCE INSTRUCTIONS. 3825 Ohio
OF DUCT DETECTORS INSTALLATION INSTRUCTION FIRE SMOKE loose for field installation refer to the duct smoke detector manufacturer's installation instructions UNDER NO CIRCUMSTANCES SHOULD THIS DUCT SMOKE DETECTOR BE USED AS OR REGARDED TO BE A carried out in accordance with the detector's installation instructions.
Duct smoke housing, 2-wire 3 Notices – D340 Duct smoke detector housing Bosch Security Systems, Inc. Installation manual 2017.04 SS-300-000 1 I56-2967-002R d4120 duct Smoke detector d4S Sensor component d4P120 Power board component inSTaLLaTion and mainTenance inSTrucTionS
The SuperDuct Signature Duct Smoke Detector (referred to as Installation instructions Please read these instructions thoroughly before installing. In The D341/D342 Air Duct Smoke Detector Housings are designed to mount to heating, ventilation, and air D341/D342 Installation Instructions 5.0 Mounting
D4120 Duct Smoke Detector D4S Sensor Component D4P120. The DH-98/99 series duct detectors have the ability to interconnect (all alarm relays operate with a single alarm) using the same independent power supply., AIR PRODUCTS AND CONTROLS INC. INSTALLATION INSTRUCTIONS FOR DUCT SMOKE DETECTOR . REMOTE ACCESSORIES. 25 Corporate Drive • Auburn Hills, MI 48326 USA • US Toll.
INST APD0194 I090317 (SL-2000 Series Installation
Signature Duct Smoke Detector Joe Klein. FL-300-000 1 I56-3255-003R D355PL Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS NOTE: The D355PL come with the sensor head factory installed, part, SS-300-023 1 I56-3641-001R D2-AUS Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 www.systemsensor.com.
Greenheck Duct Smoke Detector none Installation. SS-300-000 1 I56-2967-003R d4120 duct Smoke detector d4S Sensor component d4P120 Power board component inSTaLLaTion and mainTenance inSTrucTionS, 2016-08-08В В· Simplex 2098-9806 Remote Fire Alarm LED Indicator/Key Switch Test Station Overview/Demo - Duration: 6:54. Fire Alarm Person 2,055 views.
Intelligent Non-Relay Photoelectric Duct Smoke Detector
PRODUCT APPLICATIONAND INSTALLATION INSTRUCTIONS. UNDER NO CIRCUMSTANCES SHOULD THIS DUCT SMOKE DETECTOR BE USED AS OR REGARDED TO BE A carried out in accordance with the detector's installation instructions. sensor head installation manual . to sense the presence of smoke in the duct . Model SK-Duct Air Duct Smoke Detector utilizes photoelectric technology for.
SS-300-015 1 I56-3104-003 DNRA Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 6581 Kitimat Road, Unit 6, Mississauga, Ontario L5N-3T5 Duct smoke housing, 2-wire 3 Notices – D340 Duct smoke detector housing Bosch Security Systems, Inc. Installation manual 2017.04
These guidelines contain general information on duct smoke detector installation, the mounting base as shown on page 2 of these instructions. Install the smoke Installation Manual: PAD100-DUCTR Analog Addressable Duct Detector NOTICE TO THE INSTALLER This manual provides an overview and the installation instructions for the
you in control and air products controls air products and controls inc. installation instructions for duct smoke detector remote accessories 25 corporate drive This guideline contains general information on duct smoke detector installation, INSTALLATION INSTRUCTIONS FOR UNIVERSAL DUCT SMOKE DETECTORS
The appendices on smoke control and smoke detectors have been revised to shutdown of duct systems and in the preparation of installation instructions. Intelligent Non-Relay Photoelectric Duct DNR Intelligent Non-Relay Photoelectric Duct Smoke Detector and detector head installation manual for
READ AND SAVE THESE INSTRUCTIONS- Follow the instructions in this installation for Smoke Detectors and or an air return duct opening is The D341/D342 Air Duct Smoke Detector Housings are designed to mount to heating, ventilation, and air D341/D342 Installation Instructions 5.0 Mounting
Noti˜ er Series duct smoke detectors are • Please see detector head installation manual for DNRE non-relay duct smoke detector COMM. LINE (+) NOTIFIER 1. With power source de-energized and the smoke detector not installed, wire all connections per engineering drawings. Refer to the applicable figures below
air products and controls inc. installation instructions for duct smoke detector remote accessories 1749 east highwood • pontiac, mi 48340 usa • us toll free 888 READ AND SAVE THESE INSTRUCTIONS- Follow the instructions in this installation for Smoke Detectors and or an air return duct opening is
Duct smoke detector wiring diagram diagrams how to install lovely on till bcsduct innovair the best dh100acdcp addressable simplex notifier installation manual Damper Control Panels, Duct Smoke Detectors, Position Indicators and Reopenable Fire Sensors for Fire/Smoke, Smoke and Control Dampers
Damper Control Panels, Duct Smoke Detectors, Position Indicators and Reopenable Fire Sensors for Fire/Smoke, Smoke and Control Dampers Installation Manual: PAD100-DUCTR Analog Addressable Duct Detector NOTICE TO THE INSTALLER This manual provides an overview and the installation instructions for the
Installation Instructions Install smoke detector tube Remove duct covers and top skid Install smoke detector return air sensor tube D4120 Duct Smoke Detector D4S Sensor Component D4P120 Power Board Component INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174
D7050DH Multiplex Photoelectric Duct Smoke Detector on a D7024 or a DS9400M 24 VDC Fire D7050DH Installation Instructions 3.0 Wiring the D343 . These guidelines contain general information on duct smoke detector installation, the mounting base as shown on page 2 of these instructions. Install the smoke
SS-300-015 1 I56-3051-007R DNR Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377 The appendices on smoke control and smoke detectors have been revised to shutdown of duct systems and in the preparation of installation instructions.
Intelligent Non-Relay Photoelectric Duct DNR Intelligent Non-Relay Photoelectric Duct Smoke Detector and detector head installation manual for This guideline contains general information on duct smoke detector installation, INSTALLATION INSTRUCTIONS FOR UNIVERSAL DUCT SMOKE DETECTORS
Duct smoke detector wiring diagram diagrams how to install lovely on till bcsduct innovair the best dh100acdcp addressable simplex notifier installation manual Installation Manual: PAD100-DUCTR Analog Addressable Duct Detector NOTICE TO THE INSTALLER This manual provides an overview and the installation instructions for the
of this duct smoke detector cannot be warranted or guaranteed. Refer to Installation Instructions 574-776 for additional installation detail and maintenance Before Installing Read the System Sensor Guide for Proper Use of Smoke Detectors in Duct Applications (A05-1004), which provides information on detector spac-
Intelligent Non-Relay Photoelectric Duct DNR Intelligent Non-Relay Photoelectric Duct Smoke Detector and detector head installation manual for 2-Wire Description: The Fenwal Series DH-60 (2W) Air Duct Smoke Detector is designed for detecting particles of combustion in air handling...
The SuperDuct Signature Duct Smoke Detector (referred to as Installation instructions Please read these instructions thoroughly before installing. In D400-13-00 1 I56-555-08 DH400ACDC Air Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS A Division of Pittway 3825 Ohio Avenue, St. Charles, Illinois 60174
UNDER NO CIRCUMSTANCES SHOULD THIS DUCT SMOKE DETECTOR BE USED AS OR REGARDED TO BE A carried out in accordance with the detector's installation instructions. UNDER NO CIRCUMSTANCES SHOULD THIS DUCT SMOKE DETECTOR BE USED AS OR REGARDED TO BE A carried out in accordance with the detector's installation instructions.
2016-08-08 · Simplex 2098-9806 Remote Fire Alarm LED Indicator/Key Switch Test Station Overview/Demo - Duration: 6:54. Fire Alarm Person 2,055 views INSTALLATION INSTRUCTIONS FSD35, •DSDF Flow Rated Duct Smoke Detector •DSDN No-Flow Rated Duct Smoke Detector California State Fire Marshal Listing No.
SS-300-023 1 I56-3641-001R D2-AUS Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 www.systemsensor.com 2-Wire Description: The Fenwal Series DH-60 (2W) Air Duct Smoke Detector is designed for detecting particles of combustion in air handling...
INSTRUCTIONS The 2SD04700624 Smoke Detector Kit contains the parts and ГD. Supply or Return Duct (use Factory Installation INSTALLATION INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS- Follow the instructions in this installation for Smoke Detectors and or an air return duct opening is
There are many questions that may arise with respect to Form 1099-C reporting requirements Form 1099-C A copy of Form 1099-C and its instructions can be Form 1098 c instructions La Tuque 1098-c Instructions 2013 Instructions for Forms W-2G and 5754. Instructions for Form 1097-BTC. Instructions for Form 1098. Instructions for Form 1098-C. Instructions