Installation Instructions:
Installation will require the following tools: center punch, drill, drill bits, screwdriver, wire stripper
Step 1.
Select a location for the customer and service units. Choose locations that are at a convenient height
for use. Both units are designed for wall mounting with telephone wall plates. Use the template
(FRM 380) provided to mark the location of the mounting holes for the wall plates for both the service
and customer units. Also mark a hole location for the pass through wiring if the units will be mounted on
opposite sides of a common wall. Surface wiring may be used if pass-through wiring is not possible.
Step 2:
Refer to the mounting template for detailed installion instructions. Mark the mounting and wiring hole
locations with a center punch and drill the holes with the correct drill bit size for the fastener you will be
using. Use a 1/4" hole size for the wiring. Make sure to use appropriate fasteners for the mounting
surface. For a wood surface, use #6 or #8 x 1/2" round-head wood screws. For drywall or masonry, use #6
or #8 x 3/4" screws and wall-anchors.
Step 3:
Remove the plastic covers on the wall plates to expose the wiring terminals. Pass the wiring cable
throught the pass-through hole and leave 6" to 8" of excess at each end. Pass the cable through hole 7
or 8 in the mounting plate and attach each wall plate to the mounting surface.
Step 4:
Strip the wires carefully and connect the wires as shown in the wiring diagram. The terminals on each
wall plate should connect black to black, red to red, yellow to yellow, and green to green.
Step 5:
Connect the power supply wires to the black and yellow terminals on either wall plate. Connection to
the service unit side is suggested for a neater installation.
HEARING HELPER
®
Intercom System
Model HH1000
TEL 027 Service Unit
TEL 028 Customer Unit
Typical installation on a common wall
Page 1
HEARING HELPER is a registered trademark of New England Security
