Installation Manual

4
LIST OF WARNINGS
! WARNING
 Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by
untrained or unqualified persons, or use that is not in accordance with these User Instructions, may adversely affect product performance and
result in sickness or death.
 Use only for monitoring the gases which the sensors and equipment are designed to monitor. Failure to do so may result in exposures to gases
not detectable and result in sickness or death. For proper use, see supervisor or User Instructions, or call Macurco Technical Service.
 This equipment helps monitor for the presence and concentration level of certain specified airborne gases. Misuse may produce an inaccurate
reading, which means that higher levels of the gas being monitored may be present and could result in overexposure and result in sickness or
death. For proper use, see supervisor or User Instructions, or call Macurco Technical Service.
 DVP-120 may not function effectively below 32°F (0°C) or above 104°F (40°C). Using the equipment outside of this temperature range may
adversely affect product performance and result in sickness or death.
 High voltage terminals (120/240 VAC) are located within the DVP-120, presenting a hazard to service technicians. Only qualified technicians
should open the DVP-120 case and service the internal circuits. Ensure power is removed from the DVP-120 prior to servicing the unit.
 Immediately exit any environment that causes an alarm condition on the sensor. Failure to do so may result in sickness or death.
 Each time the unit is turned on it performs a self-test, which activates the audible and visual alarms. If the self-test fails, or all the alarms do not
activate, do not use. Failure to do so may adversely affect product performance and result in sickness or death.
 Do not cover or obstruct audible alarm opening or visual alarm LED. Doing so may adversely affect product performance and result in
sickness or death.
 Do not disassemble unit or attempt to repair or modify any component of this instrument. This instrument contains no user serviceable parts,
and substitution of components may adversely affect product performance and result in sickness or death.
1. Introduction
1.1 General Information
The DVP-120 exhaust fan controller, in conjunction with Macurco™ gas transducers, provides automatic controls to help maintain an
acceptable environment in parking garages or other facilities. The DVP-120 system is designed to meet specifications for safety in
enclosed parking garages, including the Uniform Building Code and OSHA 50ppm CO requirements. The DVP-120 can control up to
twelve gas sensors in any combination (i.e. CO, NO2, EX). The DVP-120 is ready for operation after the wiring is complete and the
user system configuration is entered.
Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by
untrained or unqualified persons, or use that is not in accordance with these User Instructions, may adversely affect product performance and result
in sickness or death.
1.2 Features
 Twelve analog (current loop) input channels
 Three 10A, 240 VAC SPDT fan/alarm relays
 Drivers for external Horn and Strobe
 Externally visible system, alarm and relay status indicators
 Externally visible LCD display showing the status of each transducer and relay
 External keypad for user selection of the transducer/alarm display and setting the configuration (password protected)
 Up to three ventilation control zones can be defined
 Each zone can be controlled based on transducer signals and/or time of day
 Each relay is configurable for delay before activation and minimum on time
 Fail safe operation can be implemented
 Lockable NEMA 1 type enclosure
 Modular input and output connectors
1.3 Specifications
 Size: 10.5” x 12.5” x 2.” (267 mm x 318 mm x 51 mm)
 Weight: 6 ½ lb (2.9 kg)
 Enclosure: NEMA 1 Type
! WARNING