Selecting a Mounting Location for the DS-5C
The interleaved grid on the top of the DS-5C is the precipitation or “moisture" sensor. The rass cylinder
protruding from the ottom of the enclosure is the temperature sensor. For relia le rain and snow detection
the unit must e mounted in a location that exposes the moisture sensor to a clear view of the sky. The unit
should not e mounted directly under eaves or overhangs. It should not e mounted so close to the ground
that it may ecome uried in snow. For proper temperature detection the DS-5C must e mounted
outdoors, away from furnace vents, dryer vents, and other sources of heat. Note that, when powered, the
DS-5C moisture grid will always remain hot. This is normal. This allows the sensor to continuously melt
snow and evaporate oth rain and snow from the grid.
The DS-5C can e mounted y screwing the ase conduit hu onto an appropriate size free-standing
conduit or y using the mounting holes in each corner of the enclosure.
DO NOT DRILL HOLE THROUGH THE ENCLO URE FOR MOUNTING!
Ne Font Pas Les Trous De Foret Par La Boîte Pour Le upport!
This can allow water into the enclosure causing a potential shock hazard. It is recommended that a
weatherproof junction ox e mounted elow the DS-5C for termination of the power and load pigtails to
the uilding wiring.
Use Care When Replacing the Front Cover. Do Not Pinch the Gasket or Overtighten the crews.
LOAD1 LOAD2 INPUT POWER
GRID JACK SWITCH JACK
CONTROL/MONITOR JACK
SENSITIVITY ADJUST
DELAY OFF ADJUST
TEMPERATURE ADJUST
CONFIGURATION SWITCH
ALWAYS FOLLOW LOCAL AND NATIONAL ELECTRICAL CODES
Toujours Suivre Les Codes Électriques Locaux Et Nationaux
2
External Control/Monitor Operation
The DS-5C provides external control/monitor capa ility. Ca le
rated 300V up to 18 AWG can e connected to TB2 to access this
feature. Connecting Black (4) to White (1) will activate the
“Manual On” function. Connecting Green (5) to White (1) will
activate the “Stand y/Reset” function. See the “Manual Override
Switch Function” for a description of these modes. The
Red/Orange (2/3) leads are connected to an internal low power
monitor relay. This relay, rated at 24 VAC/VDC @ 400 mA, 10W maximum, will close with the load relays
and can e used to externally monitor activation of the sensor. This terminal lock is also the connection
point for connecting a CDP-2. Use only tinned, stranded, shielded cable for a reliable connection.
Power & Activation Indicator
A green lamp shines through a lens on the cover of the DS-5C to indicate operational status. If this lamp is
OFF the DS-5C is not receiving power. If this lamp is steady ON the DS-5C is powered ut not triggered.
If this lamp is FLA HING the DS-5C is powered on and triggered, the main relays are closed, and attached
equipment should e activated. Note that, even though snow or rain may have stopped, the DS-5C
indicator will continue to flash during the Delay-Off drying cycle.
Moisture Grid Maintenance & Replacement
It is recommended that the DS-5C e powered down and the grid wiped clean with clear water at least
once every 4 months. Heavy deposits may e removed using a non-metallic scouring pad (Scotch-BriteTM
or equivalent.) However, after a num er of years, the corrosive elements left ehind when water is
evaporated out of the moisture grid will eventually damage the grid rings. The moisture grid can e easily
replaced y ordering and installing an MG-5 “Moisture Grid Assem ly” and following the procedure elow:
THI PROCEDURE HOULD ONLY BE PERFORMED BY QUALIFIED PER ONNEL!
CE PROCÉDÉ DEVRAIT EULEMENT ÊTRE EXÉCUTÉ PAR LE PER ONNEL QUALIFIÉ!
Open all power and load reakers connected to the DS-5C. Open the front cover and remove the ca le
connector from the Grid Jack. While holding the reducing ushing, unscrew and remove the old moisture
grid. Pass the new moisture grid connector through the top hole and screw the assem ly into the reducing
ushing. Tighten the grid hand tight plus ¼ turn. Connect the new ca le to the Grid Jack. Confirm that the
four connector pins are properly aligned with the jack. Close the front cover, confirming that the front cover
gasket is properly sealed. Reapply power.
Use Care When Replacing the Front Cover. Do Not Pinch the Gasket or Overtighten the crews.
Preseason Snow Detection Testing
It is always a good idea to test the operation of the DS-5C prior to the winter season. Procure some clean
water and, if the outdoor temperature is a ove the trigger point, a can of spray component cooler (Radio
Shack Part #64-4321 or equivalent.) Clean the moisture grid following the procedure outlined a ove and
allow it to dry. Apply power to the DS-5C, drip some of the water onto the moisture grid, then spray the
temperature sensor protruding from the ase of the enclosure with the component cooler. Once the
temperature sensor has reached the trigger point with water still present on the grid the DS-5C will activate.
The user should hear the internal control relays close and see the green lamp link. Proper operation has
een confirmed. Allow the grid to dry completely. To clear the Delay-Off timer place the override switch
into “Stand y/Reset”, and then ack to the “Automatic” position.
7
General Safety Instructions
1. THI UNIT HOULD BE IN TALLED, OPENED, AND REPAIRED BY QUALIFIED PER ONNEL
ONLY!
CETTE UNITÉ DEVRAIT ÊTRE IN TALLÉE, OUVERTE, ET RÉPARÉE PAR LE PER ONNEL
QUALIFIÉ EULEMENT!
2. To avoid shock hazard do not open the front cover with power connected to the DS-5C or any
controlled equipment.
Pour éviter la décharge électrique déconnectez toute la puissance avant d'ouvrir la couverture du DS-
5C.
Pin Color Function
1 White GND/Common
2 Red Deice On Mon A
3 Orange Deice On Mon B
4 Black Manual On
5 Green Stand y/Reset
