Figure 3-1 Model Display.................................................................................................................................... 15
Figure 3-4 Normal System Display..................................................................................................................... 17
Figure 3-12 Zone Signal display.......................................................................................................................... 19
Figure 3-13 Zone Signal Silenced message......................................................................................................... 19
Figure 3-15 Save Configuration? Prompt............................................................................................................ 20
Figure 3-16 Set Time of Day............................................................................................................................... 21
Figure 3-17 Enter Hours...................................................................................................................................... 21
Figure 3-18 Enter Minutes................................................................................................................................... 21
Figure 3-19 Set Day of the week......................................................................................................................... 22
Figure 3-21 Enter Password................................................................................................................................. 23
Figure 3-31 Turn On Delay................................................................................................................................. 26
Figure 3-32 Minimum on time ............................................................................................................................ 26
Figure 3-35 Horn Turn On Delay........................................................................................................................ 27
Figure 3-36 Horn Minimum on time ................................................................................................................... 27
Figure 3-39 Strobe Turn On Delay...................................................................................................................... 28
Figure 3-40 Strobe Minimum on time................................................................................................................. 28
Figure 3-41 Zone Controls................................................................................................................................... 29
Figure 3-42 Zone Group Type............................................................................................................................. 29
Figure 3-43 Timer Days Selection....................................................................................................................... 30
Figure 3-44 Start Time Selection......................................................................................................................... 30
Figure 3-45 Stop Time Selection......................................................................................................................... 30
Figure 3-51 Quorum Entry.................................................................................................................................. 31
Figure 3-61 Buzzer Trouble Signal ..................................................................................................................... 34
Figure 3-62 Horn Trouble Signal ........................................................................................................................ 34
Figure 3-63 Strobe Trouble Signal ...................................................................................................................... 35
Revision 0.07
3
LIST OF TABLES
Table 2-1 Main Power Connections.................................................................................................................... 10
The DVP-120 Gas Detection and Ventilation Control Panel is a microcomputer based control panel used to
operate ventilation fans based on the inputs from remotely mounted gas transducers. The unit is fully tested
prior to leaving the factory, and is ready for operation after the wiring is complete and the user system
configuration is entered.
System wiring includes the main power connection for the DVP-120, current loop and power connections
between the remote sensors and the DVP-120, the fan control connections and/or alarm connections from the
DVP-120 to the building ventilation and automation systems. Refer to Figure 1-1 for a representative systemwiring diagram.
The system configuration is entered by the user through the LCD display and keypad. Refer to Figure 1-2 for
equipment locations. The system display provides the user with the system status, and the status of each
configured sensor. In addition, all control functions of the DVP-120 may be accessed through the system
display and keypad.
1.2 Features
– Twelve analog (current loop) input channels
– Three 16A, 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 Compatible Macurco Transducers
Carbon Monoxide (CO):
– CM-2B – Solid State sensor with local concentration display (ppm)
– CM-3 – Electrochemical sensor with local concentration display (ppm)
Nitrogen Dioxide (NO):
– ND-2 – Electrochemical sensor with local concentration display (ppm)
Combustible Gasses (EX):
– GT-11A – Solid State Sensor
Revision 0.07
5
ENGINEER AND ARCHITECT SPECIFICATIONS
Gas detection and exhaust fan control is provided by a Macurco DVP-120
system. This System will use CM-2B or CM-3 Carbon Monoxide (CO) to
current transducers, ND-2 Nitrogen Dioxide to current transducers or GT11A Combustible Gas to current transducers. Each transducer will measure
the level of the target gas and provide this information to the DVP-120 over
a 4-to-20 mA current loop. The Transducers are mounted in a standard 6"
x 6" electrical enclosure, and operate on low voltage (24 VDC).
All power and signal connections for the transducers are provided from the
DVP-120 control panel, via unshielded four conductor cable. The DVP-120
control panel provides three relays which can be used for ventilation fan
control or alarm signaling . These relays (SPDT - Form C) are for pilot duty
only, capable of switching 10 amp loads up to 240 VAC .
Main Fan Power
Exhaust Fans
120 VAC
ALARM
coil
coil
STARTER RELAYS
120 VAC COILS
NOTE:
1. Power connections at the sensor are non-polarized.
2. DVP-120 connections are representative of J7, J8, J10, J11, J13 and J14.
CM-2B
output
power
D CB-A+
J7, J8,
J10, J11,
J13, L14
-I LOOP
+I LOOP
+24 V RET
+24 VDC
MACURCO DVP-120
GAS DETECTION AND
VENTILATION CONTROL PANEL
Relay 1Relay 2Relay 3
Panel Power
120/250 VAC
Gnd
J4
13
LN
N.C.
N.O.
389456127
+24 V RET
COM
N.C.
V
output
-
-I LOOP
N.O.
GT-11A
+
+I LOOP
COM
mA
output
-
18765432
+24 VDC
N.C.
power
D C
+
J2
4- Strobe
3+ Strobe
2- Horn
1+ Horn
N.O.
COM
J2
120 VAC
Power
NOTE
1. Typical coverage for a CO sensor is 5000 sq. ft., 900 sq. ft. for combustible gasses.
Extra sensors may be needed near areas where people work, such as toll booths.
2. Macurco provides only the control panels and sensors. Fans, relays, and other devices are provided by the contractor.
3. See the appropriate building code for the size of fans and air changes per unit of time.
exhaust fan
DVP-120
panel
exhaust fan
CM-2B,
CM-3 or
SS102HC-1
Typical layout in Parking Garage
CM-2B,
CM-3 or
SS102HC-1
space sensors equally,
mount 5 feet above floor
CM-2B,
CM-3 or
SS102HC-1
Air inlet:
door, damper,
louvier
Air inlet:
door, damper,
louvier
Revision 0.07
Figure 1-1 System Wiring Diagram
6
Figure 1-2 DVP-120 Internal View
Revision 0.07
7
1.4 Specifications1
– Size: 10” x 12” x 2” (254 mm x 305 mm x 51 mm)
– Weight: TBD
– Enclosure: Nema 1 equivalent steel
– Operating Temperature: 0° to 50 °C (-32 to 122 °F)
– Operating Humidity: 0% to 95% RH non-condensing
– Power Input: 100 – 240 VAC, 1 Amp, 47 – 63 Hz, single phase
– Relay Rating (3): SPDT, 120/240 VAC, 16 A resistive
– LCD Display: 2 rows of 16 characters with backlight
– Status Indicators (LED): Power, ALARM/warning, Silenced, Relay 1, Relay 2 & Relay 3
– Audible indicator: Internal buzzer, 90 dbA at 1ft
– External Drivers (2): 24VDC, maximum 250 mA
– CO Transducer Range: 0 – 250PPM
– NO Transducer Range: 0 – 9.0 PPM
– EX Transducer Range: 0 – 10,000 PPM
– Relay On Delay: 0 – 15 minutes in 1 second increments
– Relay Off Delay: 0 – 15 minutes in 1 second increments
1.5 Warranty
The DVP-120 Gas Detection and Ventilation Control Panel is warranted to be free from defective material and
workmanship for a period of two (2) years from the date of manufacture (stamped on the unit). If any
component becomes defective during the warranty period, it will be replaced or repaired free of charge, if the
unit is returned in accordance with the instructions below. This warranty does not apply to units that have been
altered or had repair attempted, or that have been subjected to abuse, accidental or otherwise. The above
warranty is in lieu of all other express warranties, obligations, or liabilities.
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE
ARE LIMITED TO A PERIOD OF TWO (2) YEARS FROM THE PURCHASE DATE.
Macurco shall not be liable for any incidental or consequential damages for breach of this or any other warranty
express or implied, arising out of or related to the use of the control panel. Manufacturer or its agent’s liability
shall be limited to replacement or repair as set forth above. Buyer’s sole and exclusive remedies are return of
the goods and repayment of the price, or repair and replacement of non-conforming goods or parts. (The
Uniform Commercial Code applicable in the State of Colorado shall govern)
1.6 Return Instructions
Call (303) 781-4062 for a Return Authorization form. Then carefully pack the control panel with a written
description of the nature of the return. Send the unit to the following address:
Aerion Technologies Inc.
6555 S. Kenton St., Ste 304
Centennial, CO
USA 80111
1
Macurco reserves the right to modify or change the specifications of all products without prior
notification to the user.
Revision 0.07
8
2 Installation & Connection
2.1 Mounting the DVP-120
Mounting holes are provided in the DVP-120 case at the four corners. The top two are keyhole shaped so that
the panel can be hung and then the two bottom screws driven to hold the panel. Conduit entry holes are
provided on the top, bottom and right side of the panel. The panel should be mounted with sufficient space all
around, depending on the complexity of the installation.
Main power wiring should conform to national and local electrical codes, and may require separate inspections
and certification. Contact your local building authority for further details. If safety certification is required to
obtain your occupancy certificate, Macurco can contract to provide testing services to obtain certification (such
as the ETL label) by a national testing laboratory. Contact the Macurco Sales Department for further details.
2.2 General Wiring Information
WARNING
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.
With the exception of the safety ground, all field wiring is done via modular connectors (provided) so that the
wiring can be done easily and then simply plugging the modular connectors into the matching connectors on the
PCB.
The power and signal connections to the remote mounted sensors should be size AWG18 (minimum) for short
runs. Refer to Table 2-2 for recommended wire gauges. Four conductor cables may be used in all cases since
the DVP-120 employs DC power for remote sensors to prevent electrical noise from interfering with the sensor
output signal.
Do not bundle sensor power and/or signal connections with other AC power cables to prevent electrical
interference. If other AC power connections must be bundled with the DVP-120 sensor cables, Macurco
recommends that the sensor connections be made with two twisted pairs of the appropriate gauge, with an
overall foil and braid shield. All shields should be terminated at the DVP -120 end of the cable only. A ground
stud is provided near the bottom left corner of the panel.
Typical part numbers for AWG18 are:
– Alphawire 55132
– Belden TBD
Revision 0.07
9
2.3 Main power Connection
The main power cable should be routed into the bottom left conduit entry.
Macurco recommends a minimum wire size of AWG18. The modular connector will accept wire from 12 to 24
AWG.
The safety ground wire should be secured to the ground stud at the bottom left of the cabinet with the lock
washer and nut supplied. Macurco recommends the use of a ring terminal for the ground connection.
Refer to Table 2-1 for DVP-120 power connections.
The line and neutral wires should be stripped 1/4 in. (6.5 mm), insert the wire into the wire cavity of the
modular connector and tighten the screw clamp. Ensure that the wire cannot be easily pulled from the
connector. Plug the modular connector into J4 on the PCB and ensure that it latches into the header properly.
Signal Terminal Connection
Line (120/220/240/250 VAC) J4-3
Neutral J4-1
Ground Ground Stud
Table 2-1 Main Power Connections
2.4 Remote Sensor Connection
Each remote sensor is connected by a four-wire connection – two wires for DC power and two wires for the 4 –
20 mA loop connection. The sensors are connected to the control panel PCB with modular connectors, two
sensors per connector. See Figure 2-1 for a view of a typical sensor connector. Refer to Table 2-2 for wire size
recommendations.
CH n+1 +20ma ILOOP
CH n+1 +24 Vdc
18
CH n +24 Vdc
CH n+1 +24V RET
CH n+1 ILOOP RET
CH n +20ma ILOOP
CH n +24V RET
CH n ILOOP RET
Insert this face of connector
into mating connector on
control circuit board.
Revision 0.07
Figure 2-1 Sensor Interface Connector
Wire gauge Maximum Run Length (ft.)
(feet) (meters)
18 500 152
16 800 244
14 1250 381
Table 2-2 Recommended Wire Gauge
10
Each 8-terminal sensor modular connector may be disconnected from the PCB connector to ease wire
installation. The terminals will accept wire from 16 to 28 AWG. To install a wire, strip back approximately 0.25
in. (6 mm) of insulation, and insert the bare wire into the terminal. Tighten the screw clamp and ensure that the
wire cannot be easily pulled from the connector. Table 2-3 lists the connector to sensor channel correspondence.
While Table 2-4 lists channel signals, connector and terminal assignments for all 12 input channels.
Table 2-4 Sensor Connectors: Channel and Pin Assignments
11
2.5 Relay Connection
All poles of the three relays are available at the modular connector J2 (see Figure 2-2 for details). J2 is a 9position variant of the high voltage modular connector used for power input. Each terminal can accommodate a
wire size 12 to 24 AWG.
R2 NO
R1 NC
R1 C
R1 NO
R2 NC
R2 C
1
Figure 2-2 Relay Connector
To install the wiring for the relays, disconnect the connector from the header on the PCB. Strip the insulation of
each wire back approximately 1/4 in. (6.5 mm), insert the bare wire into the terminal and tighten the screw
clamp. Ensure that the wire cannot easily be pulled from the connector.
Note that the panel configuration can designate Relay-1 as an ALARM signal relay. Relay-2 and Relay 3 are
general purpose in function.
Refer to Table 2-5 for output signals, connector and terminal assignment for all three relays.
Signal Name Connector-
Pin Number
Relay 1 NC J2-1 Relay 2 NC J2-4 Relay 2 NC J2-7
Relay 1 NO J2-2 Relay 2 NO J2-5 Relay 2 NO J2-8
Relay 1 Common J2-3 Relay 2 Common J2-6 Relay 2 Common J2-9
Signal Name Connector-
R3 NO
R3 NC
R3 C
9
Insert this face of connector
into mating connector on
control circuit board.
Pin Number
Signal Name Connector-
Pin Number
Revision 0.07
Table 2-5 Relay Interface Signals and Connector Assignments
12
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