Hochiki CHQ-WS2(WHT) Installation Instructions

HOCHIKI WALL SOUNDER & WALL SOUNDER BEACON
Installation INSTRUCTIONS
Products Covered: CHQ-WS2, CHQ-WS2(WHT) Wall Sounders, CHQ-WSB2/WL, CHQ-WSB2/RL, CHQ-
WSB2(WHT)/RL, CHQ-WSB2(WHT)/WL Wall Sounder Beacons, YBO-R/3(RED, YBO-R/3(WHT) Standard
Bases, YBO-R/SCI(RED), YBO-R/SCI(WHT-SNDR), YBN-R/3(WHT)-SCI Isolator Bases.

Introduction

The CHQ-WS2 is a loop-powered addressable wall sounder. The CHQ-WSB2 is a loop-powered addressable wall
sounder beacon. Both units are compatible with the standard red mounting base (YBO-R/3(RED)) and the red
isolator base (YBO-R/SCI(RED)); the units have connections for both these types of base. Do not attempt to use
any other base type with these units. Both sounders and bases are also available in WHITE (YBN-R/3(WHT) (see
above).
Both the CHQ-WS2 and CHQ-WSB2 are Ingress Protection rated to IP21 for internal use, but can be made
weatherproof when used in conjunction with the WS2-WPK Weather Proofing Kit, in which case they are Ingress
Protection rated to IP65* 1

Address Setting (with Hand Held Programmer)

The units will need to be manually addressed between 1 and 127. The sounder address can be set using the Hand
Held programmer (TCH-B100) as the units both include the appropriate terminals to fit directly onto the
Programmer. See the TCH-B100 instructions for further details of address setting. The address must be set before
installation.

Tones and Volumes

Table 1 below shows the full range of sound outputs available from the CHQ-WS2 and CHQ-WSB2 together with
the amount of current drawn when operated. The units are also capable of utilising a number of different EN54-3
Approved tones; these are listed in Table 2, page 3. The tone of the sounder and the volume level is selected
and controlled by the control panel, therefore check with the control panel manufacturer for options and
default values available. The sounder and beacon elements of the CHQ-WSB2 can be controlled
independently, check with the control panel manufacturer for compatibility.
Table 1
Nominal Sound Output dB(A)*
90
95
98
100
102
Supply Voltage Range 17-41 Vdc. Max. Power Consumption 287 mW @ 41 Vdc (beacon only)
2
* Refer to Application Notes AP084 and AP117 (available from our website) for complete EN54-3 A-weighted
sound levels.
‡
@ 1m distance.

Precautions

 Ensure that the unit is installed in accordance with Local Standards or Regulations.
 Only use the specified Hochiki mounting bases (or WS2-WPK Weather Proofing Kit) with this wall sounder/wall
sounder beacon.

Only install in suitable environments, the following in particular should be avoided: -

Excessive ambient temperature.

Where excessive condensation or moisture is present (unless WS2-WPK is utilised).

Hazardous areas.
 A high voltage tester must not be used with these units or either of the specified bases.

Ensure that the unit is securely fixed to the mounting base (and WS2-WPK if utilised).
 For proper wiring supervision ensure that the cables are wired as shown in Fig 4.

Locking Mechanism

The units can be locked onto the relevant mounting base by removing a plastic lug on the underside of the sounder,
refer to Fig. 1.
www.acornfiresecurity.com
but only when used in accordance with the WS2-WPK instructions (2-3-0-627).
CHQ-WS2
(sounder activated)
2 ‡
2.0
3.0
4.5
6.5
8.0
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CHQ-WSB2
(sounder & beacon activated)
Current Drawn mA
9.0
10.0
11.5
13.5
15.0
2-3-0-1752/ISS1/JUNE14