Manual Call Points
Where appropriate refer to the as fitted wiring diagrams (if supplied), general notes,
EMC compliance, cable types and loop circuit connections.
Surface Fixing
a)
Identify from a range the required type of manual call point MCP:
78150-52NM
Surface mounted MCP
78155-52NM
Surface mounted MCP keyswitch
78150-55NM
Surface mounted MCP with cover
78150-22NM
Surface mounted water resistant MCP
78150-25NM
Surface mounted water resistant MCP with cover
Check that it contains the following parts:
Component
Quantity
Call point Assembly
1
Back Box
1
Earth Link
1
Test Key
1
Long Screw
2
Small Screw
1
Gasket
1 (Only supplied
with 78150-22NM and 78150-25NM)
b)
Cut the required holes on the back box for cable entry and also on
the square gasket if applicable.
c)
Feed the cables through the entry holes and mount the back box with
the Square Gasket, if used, to an even wall surface using suitable
fixing.
d)
Terminate each cable entry at the back box utilising the earth link to
maintain cable earth continuity.
e)
Disassemble the call point assembly using the end of the test key to
open the socket head screw.
f)
Feed the cable tails through the spacer/back box gasket, if used and
connect the cable ends to the loop terminals provided in the spacer
assembly.
NOTE: The terminal block used for Loop connection is specifically
designed for a single core of 1.5mm
2
cable only.
Manual Call Points
Surface Fixing
78910-03NM Issue 2_10/96
12-1
Senator II Installation Manual