Heath Zenith 122C, 121AC, 125C User Manual

P.O. Box 90004

Bowling Green, KY 42102-9004

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.

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”.

Note:

MOUNTING SUGGESTIONS

Rear Push Button
(If Applicable)

For multiple

Transformer

FRONT

REAR

TRANS

Mounting
Slot

Base Style “A” Base Style “B”

Wire Nut

Optional Second Mechanical Chime

Front Push Button

Cover Pin

Wire Entrance
Holes

Mounting
Hole

REAR

DO NOT OIL

FRONT

Figure 1

TRANS

© 2003 DESA Specialty Products™ 598-1112-01

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 1).

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(s).

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 ter-

minal marked “REAR” (see Figure 1).

9. Twist together the wires labeled “C” and secure them with a UL approved wire nut.

10.Place chime cover securely over base.

11. Restore power. Press push button(s) to test chime.

For replacing an existing transformer, follow step 2 above.

WARNING: Turn power off at fuse or circuit breaker before installing transformer.

1. Verify existing chime/bell system works correctly. If no sound is heard, see Troubleshooting

section for more information.

2. Check transformer power rating. This chime requires a minimum 16 Volt, 10 Watt transformer.

3. Remove cover from existing chime and disconnect wires from terminal screws. Using masking

tape or wire tags provided on packaging, label all wires (“F”-Front Push Button, “T”-Transformer,

“R”-Rear Push Button) as you remove them according to terminal markings.

4. Remove existing chime base from wall.

5. Route wires through wire entrance hole(s) in new chime base.

6. Mount chime base to wall using screws provided.

7. 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 1).

common connection may exist elsewhere in the original installation and may not be visible.

8. Place chime cover securely over base.

9. Restore power. Press push button(s) to test chime.
Note: For multiple mechanical chimes, use a 16 Volt, 15 Watt transformer.

• Electrical work must be in accordance with national and local electrical codes. If in doubt,

consult a qualified electrician. Turn power off at fuse or circuit breaker before installing/
replacing transformer.

•Many chimes, bells, and buzzers are installed with a 10 Volt, 5 Watt transformer. This chime

requires a minimum 16 Volt, 10 Watt transformer.

• For replacement installation, identify and tag wires before removing them according to terminal

markings: “F”-Front Push Button, “R”-Rear Push Button, and “T”-Transformer.

• For new installations install #20 AWG bell wire in pairs from push button(s) and transformer to

chime. Do not pinch wire or damage its insulation. Heath®/Zenith accessory wire (No. 196C or
No. 199C) is available for chime installations.

• Clean wood, plastic, and metal parts with mild soap and warm water. Never use cleaners or

polishes. Never use any fluids on the mechanical chime mechanism.

REPLACEMENT INSTALLATION WIRING

HELPFUL HINTS

Note:

The

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Chime does not sound:

• Check Chime: Disconnect wire from terminal marked “TRANS”. Have someone operate push

button at front door while you momentarily touch the “TRANS” wire to terminal marked “FRONT”.
You will see a small spark if push button, wiring, and transformer are operating properly. Repeat
the steps for “REAR” terminal and rear push button. If wiring between transformer and push
button(s) check out properly, replace chime.

• Check Transformer: Momentarily touch the two low-voltage terminals with a screwdriver. You will

see a small spark if transformer is operating properly. If no spark is evident, replace transformer.

• Check Push Button(s): Remove suspected unit from door frame, disconnect wire from terminals

and touch bare wires together. If chime operates, push button is defective. Replace push button.

If you experience a problem, follow this guide. You may also want to visit our Web site at:
www.desatech.com. If the problem persists, call* for assistance at 1-800-858-8501, 7:30 AM to 4:30
PM CST (M-F). You may also write* to:
DESA Specialty Products™
P.O. Box 90004, Bowling Green, KY 42102-9004
ATTN: Technical Service Specialty Products

* If contacting Technical Service, please have the following information available: Model Number,
Date of Purchase, and Place of Purchase.

TROUBLESHOOTING

TECHNICAL SERVICE

(Do Not Send Products)

No Service Parts Available for this Product

This is a “Limited Warranty” which gives you specific legal rights. You may also have other rights which vary from

state to state or province to province.

For a period of one year from the date of purchase, any malfunction caused by factory defective parts or workmanship

will be corrected at no charge to you. To obtain a refund or a replacement, return the product to the place of purchase.

Not Covered - Repair service, adjustment and calibration due to misuse, abuse or negligence, and expendable

items are not covered by this warranty. Unauthorized service or modification of the product or of any furnished

component will void this warranty in its entirety. This warranty does not include reimbursement for inconvenience,

installation, setup time, loss of use, or unauthorized service.

This warranty covers only DESA Specialty Products™ assembled products and is not extended to other

equipment and components that a customer uses in conjunction with our products.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,

INCLUDING ANY WARRANTY, REPRESENTATION OR CONDITION OF MERCHANT ABILITY OR THAT

THE PRODUCTS ARE FIT FOR ANY PARTICULAR PURPOSE OR USE, AND SPECIFICALLY IN LIEU OF ALL

SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

REPAIR OR REPLACEMENT SHALL BE THE SOLE REMEDY OF THE CUSTOMER AND THERE SHALL BE

NO LIABILITY ON THE PART OF DESA SPECIALTY PRODUCTS™ FOR ANY SPECIAL, INDIRECT,

INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO ANY LOSS OF

BUSINESS OR PROFITS, WHETHER OR NOT FORESEEABLE. Some states or provinces do not allow the

exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply

to you. Retain receipt for warranty claims.

DESA Specialty Products™ reserves the right to discontinue and to change specifications at any time
without notice without incurring any obligation to incorporate new features in previously sold products.

ONE YEAR LIMITED WARRANTY

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P.O. Box 90004

Bowling Green, KY 42102-9004

Campana mecánica con cableado blindado

Las ilustraciones pueden variar de la unidad de campana real.

• La energía debe suministrarse desde un transformador de 16 Voltios, 10 Vatios o desde un

transformador de 16 Voltios, 15 Vatios (Modelos 122C, 121AC, ó 125C Heath®/Zenith).

•Montar la campana de la puerta en una ubicación central de manera que pueda escucharse en toda

la casa.

• Ver la unidad real para la orientación de la base.

• Usar anclas de pared si no se monta directamente a un montante de pared.

• Usar orificios de montaje ubicados a ambos lados de la base.

• Encaminar los cables a través de los orificios de entrada del cable (ver la Figura 1).

ADVERTENCIA: Desconectar la
energía al fusible o al interruptor de
circuito antes de instalar el
transformador. Observar todos los
códigos nacionales y locales.

1. Montar el transformador: Los

transformadores deben montarse en

o cerca de una caja de empalmes.

Pueden montarse también en los

paneles de servicio eléctrico. Se

prefieren las cajas de empalme en

cuartos de herramientas, sótanos muy

bajos, o sótanos. Evitar los altillos.

2. Instalar el transformador de 16 voltios,

10 vatios de acuerdo con las

instrucciones provistas con el

transformador.

mecánicas múltiples, usar un

transformador de 16 voltios, 15 vatios.

El no usar un transformador de una

potencia adecuada resulta en la

pérdida de sonido o puede resultar

en un sistema inoperante.

3. Tender dos cables de timbre No.

20 AWG o mayor (cables

accesorios No. 196 ó No. 199C

Heath®/Zenith) a la ubicación de la campana. Pelar 1/2 de pulgada de aislamiento de extremo a

extremo de los cables. Conectar cada cable al transformador (ver la Figura 1).

4. Rotular los cables del transformador: Usando cinta adhesiva o los rótulos de cable provistos

en el empaque, rotular un cable "T" y el otro "C".

© 2003 DESA Specialty Products™ 598-1112-01 S

Nota:

SUGERENCIAS DE MONTAJE

CABLEADO PARA UNA NUEVA INSTALACION

Pulsador posterior
(Si es aplicable)

REAR

TRANS

Transformador

FRONT

Tuerca de cable

Para campanas

Ranura de
montaje

Estilo “A” de base Estilo “B” de base

Segunda campana mecánica opcional

Figura 1

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Pulsador delantero

Clavija de
la cubierta

Orificios de
entrada del
cable

DO NOT OIL

Orificio de
montaje

REAR

TRANS

FRONT

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