Veris GMxA Installation Instructions

ENVIRONMENTAL SENSORS

INSTALLATION GUIDE

GMxA SerieS GMxA SerieS

Carbon Monoxide Monitoring Station

Installer’s Speciﬁcations

Supply Power 24VAC/VDC@1.3A Inputs Detect contact closure from G Series relay. Four channels. 24VDC loop Output Form C (SPDT) relay; 5A@30VAC/VDC Sensor Power Output 24VDC, 1A max. Alarm Indicators Four, 10mm Red LED; indicates alarm status Power Indicator Internal Green LED; indicates power supply operation Operating Environment -20° to 50°C (-4° t o 122°F); 0 to 90 % RH non-condensing

QUICK INSTALL

1. Lock out all power supplies prior to installation or ser vice.

NOTICE

• This product is not intended for life or safety applications.

• Do not install this product in hazardous or classiﬁed locations.

• Read and understand the instructions before installing this product.

• Turn oﬀ all power supplying equipment before working on it.

• The installer is responsible for conformance to all applicable codes.

PRODUCT IDENTIFICATION

GM A

0 = Station On ly 1 = 1 Sensor 2 = 2 Sensor s 3 = 3 Sensor s 4 = 4 Sensor s

N.C. COMM N.O.

CONTACTOR

POWER

Jumper unused Inputs as shown.

N.C. CONTACTOR

VERIS GW/GD SENSOR

(sold separately)

Common Out 0-5V/10V or 4-20mA IN V+ 15-30VDC, 24VAC N.O. Relay N.O. Relay

200

PPM

WIRING DIAGRAM

24VDC/VAC

COMMON

FAN

GMxA

MONITORING

STATION

Note: Position of jumper strip may vary depending on the version ordered.

RELAY

GND

V+

Connect G Series sensors to input terminals as indicated. To ensure proper operation, all unused inputs must be jumpered from (V+) to (IN) as shown in the wiring diagram.

FAN

POWER

10V

OUTPUT

100

2. Select a location for the sensor in a secure area where it will be accessible only to qualied service personnel. The GMxA Series monitoring station should be installed centrally in the parking structure, near the main trac paths, but away from outside air vents and excessive drafts. Mount the unit securely to a wall or column at a height of about 5 ft. (1.52 m) from the oor.

3. Connect only Veris Industries, G Series carbon monoxide sensors to the GMxA monitoring station.

4. Connect only 24VAC/24VDC power to the two-position terminal block as shown in the wiring diagram. Connect a ground wire to the metal case at a mountinig screw or metal conduit tting.

5. Apply power to the unit. A green LED on the circuit board indicates power is applied.

Note: Coverage is NOT dependant on the sensor. Coverage is a function of the buildi ng structure and air ow pat terns. A minimum of on e sensor for 5000 sq. f t. is recommended. Wide open a reas where the air is well mixed may requi re a few sensors.

OPERATION

The GMxA Series monitoring station accepts digital inputs from up to four G Series carbon monoxide sensors. It provides alarm status indication for each input and a normally open Form C (SPDT) fan actuation relay controlling a normally closed fan contactor. If any of the four sensors detect CO levels above 25 ppm, or if a fault is detected, the corresponding alarm status indicator light turns on and the fan relay will activate the fan.

DIMENSIONS

4.9"

(125 mm)

GM CARBON MONOXIDE

MONITOR

ALARM STATUS

6.5"

(166 mm)

2.8"

(71 mm)

To provide fail-safe operation, the normally open fan relay contacts must be used with a normally closed motor starter or contactor.

0.5"

(13 mm)

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.