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These installation instructions provide essential information for installing VESDA-E VEU Aspirating Smoke Detectors in accordance with the system design. Additional installation and 
product documentation is listed below in the Reference Documents section.

VESDA-E VEU Installation Instructions

System Components

The detector is shipped with the following components:

•  1 aspirating smoke detector
•  1 mounting bracket
•  1 mounting template for directly mounting the detector to the mounting surface
•  1 End of Line Resistor for the monitored GPI
•  1 installation instruction sheet

Prerequisites

•  A completed system design.
•  A 24V DC Power Supply, compliant with local codes and standards.
•  Screws and inserts that are appropriate for the mounting suface.
• 

Type A to Type B USB Interface Lead for initial configuration of the detector.

• 

Labels as specified in the system design, e.g. Sampling Point labels

•  Cable glands that are compliant with the IP rating of the detector.
• 

Conduit, as specified in the system design.

•  0.2 mm

2

 to 2.5 mm

2

 (24 - 14 AWG) wiring for relays.

• 

A PC or laptop installed with Xtralis VSC for initial configuration.

•  Standard connection instructions for where the detectors are to be added to a corporate 

network.

Standards Compliance

UL and ULC

For open area, open area high velocity and duct protection the fire alarm threshold (setting) 

that initiates an evacuation signal must be set such that the sensitivity of each sampling 
hole is more sensitive than 10%/m (3.2 %/ft) as determined by the ASPIRE software.

European Installations

The product must use a power supply conforming to EN54: Part 4.
The product is compliant with EN 54-20 sensitivity requirements provided the following 
conditions are met:
•  For a Class A detector, hole sensitivity must be better than 1.5% obscuration/m and 

transport time less than 70 seconds

•  For a Class B detector, hole sensitivity must be better than 3% obscuration/m and 

transport time less than 90 seconds

•  For a Class C detector, hole sensitivity must be better than 10% obscuration/m and 

transport time less than 110 seconds

These limits should be verified using ASPIRE during the design of the sampling pipe 

network.

The product is compliant with EN 54-20 flow monitoring requirements provided the 

following conditions are met:
• 

The minor low and minor high flow thresholds should be set at 85% and 115% 

respectively

• 

The flow through the detector predicted by ASPIRE must be greater than 20 L/m.

Power Consumption (18 - 30 VDC Supply)

Quiescent

In Alarm

Aspirator Speed

Setting 1

Setting 5 Setting 10 Setting 1

Setting 5 Setting 10

VEU-A00

7.0 W

8.8 W

14.7 W

7.8 W

9.6 W

15.5 W

VEU-A10

8.2 W

10.0 W

15.8 W

10.4 W

11.6 W

16.6 W

Environmental Requirements

• 

Temperature

 

• 

Ambient:

  

0°C to 39°C (32°F to 102°F)

• 

Sampled Air:

   -20°C to 60°C (-4°F to 140°F)

•  Tested to: 

-20°C to 55°C (-4°F to 131°F) 

 

UL: -20°C to 50°C (-4°F to 122°F)

• 

Humidity:

 10-95% RH, non-condensing

Note: 

 

Please consult your Xtralis representative for information on operation outside 
these parameters or where sampled air is continually above 0.05% obs/m 
(0.015% obs/ft) under normal operating conditions.

Reference Documents

Additional installation and product information is contained in the following documents, 
which are available for download in the Xtralis partner extranet at www.xtralis.com.

• 

22061 - VESDA-E VEU-A00 Product Guide

• 

22077 - VESDA-E VEU-A10 Product Guide

Installation Instructions

Notes

The VESDA-E detector can be mounted in an 
upright or inverted position. Do not mount the 
detector with a sideways orientation.

Ensure the mounting surface is flat as this allows an 

air tight seal to be achieved between the sampling 
pipe and the tapered air inlet pipes on the detector.

Refer to the detector Product Guide for information 
on inverted mounting.

A

B

Ensure that there is sufficient clearance to mount 

the detector, noting the location of air sampling 
pipes and cable entry points. Due to the rigid nature 
of the plastic pipe, installation must provide for 

sufficient movement in all pipework (air inlet, air 

exhaust and cable pipes) to allow pipe ends to be 

easily fitted and removed.

• 

A:

 Minimum 50 mm (2 in.) below ceiling level.

• 

B:

 The detector can be mounted directly 

against a wall or obstruction.

Attach the detector to the wall using the mounting bracket

Position the mounting bracket as specified by the system designer

E
F

B

D

A

C

D

G

G

G

G

G

•  Position the mounting bracket (A) to allow sampling 

pipes (B) and electrical conduit (C) to line up 
horizontally with the alignment marks (D) and 
vertically with the appropriate pipe depth line.
•  3/4 inch IPS (1.05 inch OD) sampling pipe should 

vertically align with the top depth line (E).

•  25 mm OD sampling pipe should vertically 

align with the bottom depth line (F).

•  Hold the plate in position and mark positions 

for 5 screw holes (G) on the mounting surface. 
Remove the plate and drill holes. Insert plugs if 
required.

Secure the mounting bracket to the mounting surface

B

B

D

D

A

D

C

C

•  Align the mounting plate with the holes. Ensure 

that the plate is level.

•  Insert and tighten two screws (B) in the keyhole 

slots (C) followed by three screws (D) in the 
remaining slots.
•  Use screws and inserts that are appropriate 

for the mounting surface and the weight of the 
detector.

Position the detector on the mounting bracket

A

A

A

B

C

•  Align the mounting studs (A) on the rear of the 

detector with the mounting stud slots on the 
mounting bracket. Ensure that the center stud 
(B) is in its slot.

•  Slide the detector (C) down until the top of the 

detector is flush with the top of the mounting 

bracket.

Secure the detector to the mounting bracket

A

B

C

C

•  Open the door on the front of the detector by 

inserting a thin screwdriver (A) into the hole at 

bottom left of the door (B) and firmly pushing 

perpendicular to the door surface to release the 
door latch.

•  Remove the tape covering the partially inserted 

locking screw (C). 

•  Tighten the locking screw.

Attach the detector directly to the mounting surface

Use the provided mounting template. Refer to the Product Guide for further information.

Note: 

  Do not remove the mounting studs from the rear of the detector as they are also 

used to hold internal components in place.

Inverted Mounting

Some system designs require that the detector be inverted. Directions for correcting the 
orientation of the fascia for an inverted detector are available in the Product Guide.

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