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1. Mount both plastic anchors in the wall.

2. Insert the sheet metal screws (#10) through 

the mounting bracket into the plastic anchors.

3. Hang the clock on the mounting bracket.

4. Put the screw (4mm) through the hole on the 

top of the clock into the hole at the top of the

mounting bracket.

1. Install Metal Mounting Bracket -

First, remove the metal mounting bracket from the inside of the double mount base by unscrewing the two (2)

6-32 x 1/2” screws located on the underside of the base (save these screws for step #3). Next, screw the metal mounting bracket to the wall or
ceiling in which the clocks are being installed. To mount to the switch box, screw the four (4) 6-32 x 1” screws supplied in the assembly kit through
the inner four holes of the metal mounting bracket to the wall or ceiling. Use the outer four holes to mount anchors to the wall or ceiling (both
anchors and screws for anchors not supplied in kit).

Note:

if using a plastic switch box, a ground wire must be routed through the switch box and into one (1) of the four (4) metal mounting bracket

screws in order to provide ground to the metal mounting bracket.

Note:

the metal mounting bracket MUST be secured by both the screws going to the switch box AND the anchors going into the wall.

2. Feed wiring through base and pole - 

Take the wiring coming from the switch box and begin to feed it through the center of the base of the

mounting assembly until it emerges from the hole in the center of the clock adaptor. Make sure there is roughly 1.5’ - 2’ of wiring coming from the
switch box. Perform this task for both clocks.

3. Snap and screw base to metal mounting bracket

- Snap the base to the metal mounting bracket by first making contact with the lip in the upper

side of the base and the metal mounting bracket. When the base has been snapped onto the bracket, take the two (2) 6-32 x 1/2” pan head screws
that originally came installed on the base of the mounting assembly and screw them back into the two holes on the underside of the base to secure
the base to the metal mounting bracket.

4. Connect switch box wires to clock harness

- Take the wiring harness supplied with the clock and make all necessary connections between the

wiring harness and the switch box wires using wire nuts. Perform this task for both clocks.

5. Plug and secure wiring to clock

- Loosen and slip excess wiring through provided wire clamp (comes attached to each clock adaptor) and tighten

the clamp. After securing excess wiring, plug the jack at the end of the wiring into the appropriate jack on the back of the clock.

6. Attach and screw clocks to adaptors

- Find all four (4) tabs

located on each adaptor. Snap the clock onto the adaptor, making
sure all four (4) tabs on the adaptor are secured to the clock (if
installing battery powered clocks, make sure batteries are installed
at this point). After securing the clock to the adaptor with the tabs,
the clock should be able to rotate 5 degrees left and right. Rotate
to align the clocks with the ceiling or wall. Secure its position by
using the four (4) 6-19 x 7/16” screws that come attached to the
clock adaptor from the factory and screw them into the four (4)
tabs on the adaptor.

CL-A12

(12” Analog Clock)

CL-DMA12 / CL-DMA16

(Double Mount for 12” and

16” Analog Clocks)

    CL-DMA12 / CL-DMA16 Specifications

Housing: 

30% Glass Reinforced ABS Plastic

Shipping Weight:

CL-DMA12: 4.2 lbs (1.91 kg)

CL-DMA16: 6.1 lbs (2.77 kg)

CL-A16

(16” Analog Clock)

IMPORTANT: We highly recommend installing the CTG-2 Clock/Tone Controller and CL-RFT Transmitter before
the installation of the CL Series clocks.

IMPORTANT: Remove pin from back of clock before installing batteries.

In order to install the 

CL-A12/16

clocks, simply remove the battery cover, and install two (2) D cell batteries

(recommended battery type: Duracell PROCELL). After installation of the battery, replace the battery cover and the
clock should start correcting within five (5) minutes. If the clock does not automatically correct itself, then manually press
the Transmit/Receive switch once on the clock closest to the clock that isn’t working. The second hand will go to 8
notifying the user that the clock is transmitting a signal. Then go to the clock that isn’t working and press the
Transmit/Receive switch twice. The second hand will go to 4 notifying the user it is looking for a signal. This should get
the signal to the clock. 

Note: 

The Transmit/Receive signal window is 10 minutes and multiple clocks can receive from

the transmitting clock during that period.

For metal mounting bracket: Use anchor that can support 50 lbs with a maximum screw size of 10/1.5”

B.  Wall Mounting the CL-A12 and CL-A16

C.  Double Mount CL-DMA12 and CL-DMA16 for the CL-A12 and CL-A16 Clocks

D.  Operation

Summary of Contents for CL-A12

Page 1: ...mbers surface or double mount housing not included CL DMA12 16 Double Mount Housing for 12 16 Analog Clocks clocks not included CL SMD2 4 Surface Mount Housing for 2 5 4 Digital Clocks clock not included CL WGA12 16 Wire Guard for 12 16 Analog Clocks CL WGD4 Wire Guard for 2 5 or 4 Digital Clocks CL DMD2 4 Double Mount Housing for 2 5 4 Digital Clocks clocks not included CTG 2A Master Clock Tone G...

Page 2: ...wn not included see DOD 489 Adjust master volume to match paging level from phone system and or 1 8 mono plug and or CL A16 CL A12 CL D2 CL D4 25AE 30AE RS485 Input A B Viking RF Synchronized Clocks with Built In Repeaters Paging Horns and or Ceiling Speakers 13 8V AC Adapter included 120V AC 12V DC Adapter included Yellow Orange Yellow Orange 120V AC Note Clock is not polarity sensitive Note Cloc...

Page 3: ...the repeater will read the data from RS485 ports 9 and 10 It will then transmit time data as both a wireless signal and as a RS485 data through ports 7 and 8 The repeater will ignore incoming wireless time data in this mode JUMPERS IN REPEATER POSITION When the jumpers are on the lower pair of pins the repeater will read time data from wireless signal sent by Viking RF transmitters or wireless Clo...

Page 4: ... 2 Duracell Procell D Batteries not included Note Standard alkaline batteries can be used but will have a slightly shorter battery life Input Sensitivity 103 dbm Transmitter Repeater Power Output 1 4 watt 8 dbm Transmits up to 500 ft in open space Operating Sensitivity 915 928 MHz frequency hopping technology Color Standard black Dial Durable polystyrene material Case Smooth surface ABS case Cryst...

Page 5: ...rm this task for both clocks 5 Plug and secure wiring to clock Loosen and slip excess wiring through provided wire clamp comes attached to each clock adaptor and tighten the clamp After securing excess wiring plug the jack at the end of the wiring into the appropriate jack on the back of the clock 6 Attach and screw clocks to adaptors Find all four 4 tabs located on each adaptor Snap the clock ont...

Page 6: ... and the clock is not moving The clock should move at normal speed upon power up If it does not move at normal speed check the battery and make sure the clock receives power Also be sure to remove the pin prior to starting up the clock What happens if the clock does not receive the signal Take the clock within close proximity to the CL RFT Transmitter and power up the clock If the clock is battery...

Page 7: ...ostic will test the battery level of the clock To enter Diagnostic 4 mode push the Diagnostic Switch four 4 times which is indicated by the LED flashing four times every two seconds The second hand will display the battery level by stopping at one of the numbers on the clock s face For example If the second hand lands on 7 the battery level is 2 7V If the second hand lands on 8 the battery level i...

Page 8: ...CL D2 CL D4 Digital Clocks 1 Mount Housing to Wall and or Gang Box To mount the housing to the wall drive two 2 plastic anchors into the wall not supplied in kit and take two pan head screws also not supplied in kit and drive them into the plastic inserts leaving an 1 8th inch gap between the head of the screw and the wall Mount the housing to the wall by lining up the two holes in the back of the...

Page 9: ...e into the hole in the middle of each clock housing Align each housing one at a time with the four holes on the mounting pole and screw from the inside of the housing into the pole using the four 4 8 32 x 7 16 screws supplied in the assembly kit 4 screws per clock Note End caps from one side of each clock must be removed to mount both clocks to the mounting pole Remove one end cap from each clock ...

Page 10: ...ks work together with CL A12 16 Series analog wireless clocks Yes the CL D2 4 wireless clocks work integrally with Viking s CL A12 16 series wireless analog clocks How many ways can I mount the CL D2 4 Series clock The clock can be mounted in either surface or double mount Please see pages 8 and 9 for more information on mounting instructions Can the CL D2 4 digital clocks be used as an independen...

Page 11: ... use with the Viking CL A12 12 round analog clock Dimensions 18 75 x 16 x 5 47 63cm x 40 64cm x 12 7cm Shipping Weight 3 9 lbs 1 77 kg Wire 3 6 and 9 gauge Finish Zinc plated epoxy lacquered baked clear coat Description Optional wire guard for use with the Viking CL A16 16 round analog clock Dimensions 23 x 19 x 5 58 42cm x 48 26cm x 12 7cm Shipping Weight 5 2 lbs 2 36 kg Wire 3 6 and 9 gauge Fini...

Page 12: ...er normal use and service for a period of two years from the date of purchase from any authorized Viking distributor If at any time during the warranty period the product is deemed defective or malfunctions return the product to Viking Electronics Inc 1531 Industrial Street Hudson WI 54016 Customer must contact Viking s Technical Support Department at 715 386 8666 to obtain a Return Authorization ...

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