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Mounting and fixing instructions

Weatherproof wall units

Indoor wall units

Base units

These units are supplied with their own back box 
and special front cover. A sealing ring is supplied 
fitted on this front cover. See item 1 in Fig 6.
1

Fix the back box to the wall. Drill positions 
for glands on the top, bottom, and sides, 
see item 2 in Fig 6.

2

Slide the wall unit into place in the front 
cover as shown and then push down until it 
clips in.

3

Secure the front cover (including the wall 
unit) to the back box with the four supplied 
screws (M3.5 hex head) using the supplied 
Allen key. 

Note: 

To maintain the IP rating, use suitably 

rated cable glands and sealant as required.

1

Unclip the front cover from the wall unit. using the screw-
driver slot on the top.The front cover is hinged at the bottom 
of the unit. 

2

Use the two supplied screws to either fix the unit to the 
optional back box (with knockouts for conduit connections) 
or to the optional adaptor plate or to a back box with suitable 
mating fixings. 

3

Refit the front cover, engaging the clips on the bottom first.

4

Secure the front cover with either the supplied self-tapping 
screw or nylon plug. 

Note: 

If using the adaptor plate, a suitable recess is required for 

the connector block protruding from the rear of the wall unit. 

These units either fit directly to the ceiling or to an optional 
ceiling adaptor.The ceiling mounted variants provide a base 
for fitting a fire detector. Alternatively, a blanking cap is fit-
ted.See Fig 8. 
See Fig 10 for fitting the locking pin. To remove a detector 
from a base with a locking pin, complete these steps:
1

Insert a suitable tool into the access hole to depress 
the locking pin in the detector cover.

2

Rotate the detector to remove.

These units can be used with the Ceiling Tile Adapter (CTA) 
kit (517.050.060) by using the CTA Adaptor Plate, CTA-AP 
(517.050.058).

2

1

Fig. 6: Fitting weatherproof wall units

1

4

3

6

2

5

7

Fig. 7: Indoor wall units
1 – Single gang flush back 

box

2 – A-BOX
3 – S-BOX
4 – D-BOX

5 – M3.5 screw x 2
6 – Self-tapping  screw
7 – Nylon  plug

A-CON

B-CAP

Fig. 8: Fitting base units

1

2

3

4

Fig. 9: Checking the gasket

1

Check that the gasket (item 1) is seated correctly before fitting the front cover. 

2

Note “v”notch (item 2) on the upper side and gasket retained by the hooks on both sides 
(items 3). 

3

Item 4 is the programming port.

Fig. 10: Fitting the locking pin

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