Heath Zenith 121AC Manual

Hardwired Mechanical Chimes
Illustrations may vary from actual chime unit.
• Power must be supplied from a 16 Volt, 10 Watt transformer or 16 Volt, 15 Watt transformer
(Heath ® /Zenith models 122C, 121AC, or 125C).
• Mount door chime in a central location so it can be heard throughout the home.
• See actual unit for orientation of base.
• Use wall anchors if not mounting directly to wall stud.
• Use mounting holes located on both sides of base.
• Route wires through wire entrance holes (see Figure 1).
NEW INSTALLATION WIRING
WARNING: Turn power off at fuse or
circuit breaker before installing
transformer. Follow all national and
local codes.
1. Mount Transformer: Transformers
should be mounted on or near a
junction box. They can also be
mounted to the electrical service
panels. Junction boxes in utility
rooms, crawl spaces, or basements
are preferred. Avoid attic locations.
2. Install 16 Volt, 10 Watt transformer
according to the instructions supplied
with transformer. Note: For multiple
mechanical chimes, use a 16 Volt,
15 Watt transformer. Failure to use
a transformer with adequate power
will result in loss of sound or may re-
sult in the system being inoperative.
3. Run two No. 20 AWG or better bell
®
wires (Heath /Zenith No. 196C or No.
199C accessory wire) to the chime
location. Strip away 1/2" of insulation
from end of wires. Connect each wire
to transformer (see Figure 1).
4. Label Transformer Wires: Using masking tape or wire tags provided on packaging, label one
wire "T" and the other "C".
© 2003 DESA Specialty Products™
P.O. Box 90004
Bowling Green, KY 42102-9004
MOUNTING SUGGESTIONS
Rear Push Button
(If Applicable)
Mounting
Slot
Base Style "A"
Wire Nut
Transformer
Cover Pin
Optional Second Mechanical Chime
Figure 1
Front Push Button
Wire Entrance
Holes
Mounting
Hole
Base Style "B"
598-1112-01