Heath Zenith 121AC - Manual (Page 4)

4 598-1142-01
MOUNTING SUGGESTIONS
• 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 (for new installa-
tions).
• See actual unit for orientation of base (see Figure 1).
• Always use mounting wall anchors.
• Use all mounting holes located at four corners of base.
• Route the wires through the wire entrance hole (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.
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 2).
4. Label Transformer Wires: Using masking tape or wire tags provided on packaging, label one
wire “T” and the other “C”.
5. Mount push button(s) to door frame(s). Run two No. 20 AWG bell wires from push button(s) to
the chime location. Strip away 1/2" of insulation from end of wires. Connect each wire to push
button(s) (see Figure 2).
Label Front Push Button Wires: Using masking tape or wire tags provided on packaging,
label one wire “F” and the other “C”.
Label Rear Push Button Wires: Using masking tape or wire tags provided on packaging,
label one wire “R” and the other “C”.
6. At the chime, pull all wires through wall cavity and out through a 1/2" hole in the wall board.
Route wires through wire entrance hole.
7. Mount chime base to wall using screws provided.
8. Strip away 1/2" of insulation from end of wires. Connect wire “F” to the screw terminal marked
“FRONT”. Connect wire “T” to screw terminal marked “TRANS”. Connect wire “R” to screw
terminal marked “REAR” (see Figure 2).
9. Twist together the wires labeled “C” and secure them with a UL approved wire nut.
10.Place chime cover securely over base (see Figure 5).
11. Restore power. Press push button(s) to test chime.