ASE DS-9C User manual

LIMITED WARRANTY
The DS-9C is warranted against defects in workmanship and materials for two years from date of sale.
This warranty does not apply to damage resulting from accident, misuse, or alteration nor where connected
voltage is more than 5 above the configured operating voltage, nor to equipment improperly installed or
wired or maintained in violation of this Owner’s Manual. No other written or oral warranty applies. No
employee, agent, dealer or other person is authorized to give any warranties on behalf of ASE.
Units returned for warranty repair cannot be modified from shipped condition and leads must
protrude a minimum of 6 inches from the base conduit hub. Repair costs of a modified unit will be
quoted as the unit must be returned to the original, unmodified condition prior to return shipping. The
customer shall be responsible for all costs incurred in the removal and/or reinstallation and shipping of the
product for repairs. Within the limitations of this warranty, inoperative units should be returned, freight
prepaid, to ASE, and we will repair or replace, at our option, at no charge to you with return freight paid by
ASE to destinations within the U.S. and Canada. It is agreed that such repair or replacement is the
exclusive remedy available from ASE and that ASE IS NOT RESPONSIBLE FOR DAMAGES OF ANY
KIND, INCLUDING INCIDENTAL AND CONSEQUENTIAL DAMAGE. Some states do not allow the
exclusion or limitation of incidental or consequential damages so the above exclusion may not apply to
you. The warranty gives you specific legal rights, and you may also have other rights which vary from state
to state.
Input: 100-277 VAC +/- 5 , 47-63 Hz
Control: 2 x 277 VAC @ 30A
Operating Temp: -40°C to +85°C
AUTOMATED SYSTEMS ENGINEERING, INC.
2519 E SAINT VRAIN ST
COLORADO SPRINGS, COLORADO 80909
PHONE: [phone] FAX: [phone]
Visit us on the Internet at: www.goase.com
CM
US
C
Intertek
T
E
D
S
I
L
Need Indoor Monitoring & Control?
Take a Look at the A E CDP-2
Simple Installation & Operation at a Competitive Price
Approved CS-xxx Interface Cable and EX-50 Sensor Extension Kits Are
Also Available
Visit www.goase.com for more information
CAUTION: Read all instructions carefully before installation.
ave this Installation Manual for future reference.
DS-9C
RAIN/SNOW SENSOR CONTROLLER
IN TALLATION MANUAL
INDICATOR
POWER
OFF
CM
AVERTISSEMENT: IL PEUT Y AVOIR UN CIRCUIT SECONDAIRE SOUS TENSION
CERTIFIED TO CAN/CSA STD C22.2 NO. 14
CONFORMS TO UL STD 508
100−277V AC 0.35 A 50/60 H
2 x 30 A 277V AC, 20 A 28V DC
ENCLOSURE TYPE 3R
RAIN/SNOW SENSOR CONTROLLER
WARNING: THIS UNIT MAY BE SUPPLIED BY MORE THAN ONE BREAKER
CONTROL
INPUT
USC
Intertek
3175102
CONTROL SWITCH
STANDBY/RESET
MANUAL ON
AUTOMATIC
T
S
L
I
E
D
ACTIVATED
ENGINEERING
DANGER
DS−9C
AUTOMATED
SYSTEMS
Manufactured By
AUTOMATED
SYSTEMS
ENGINEERING
2519 East aint Vrain t Colorado prings, Colorado 80909

Selecting a Mounting Location for the DS-9C
The small corded device with the interleaved grid is the remote precipitation or "moisture" sensor. The
brass cylinder protruding from the bottom of the DS-9C enclosure is the temperature sensor. For reliable
rain and snow detection the moisture sensor must be exposed to a clear view of the sky. Reference Page 3
"Moisture Sensor Mounting & Termination" for guidance in mounting the DS-9C moisture sensor. For
proper temperature detection the DS-9C enclosure must be mounted outdoors, away from furnace vents,
dryer vents, and other sources of heat. When powered, the DS-9C moisture grid will always remain hot.
This is normal. This allows the sensor to continuously melt/evaporate rain and snow from the grid.
The DS-9C enclosure can be mounted by screwing the base conduit hub onto an appropriate size free-
standing conduit or by 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 box be mounted below the DS-9C for termination of the power and load pigtails to
the building wiring.
Use Care When Replacing the Front Cover. Do Not Pinch the Gasket or Overtighten the crews.
LOAD1 LOAD2 INPUT POWER
SWITCH JACK
CONTROL/MONITOR JACK
GRID 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-9C provides external control/monitor capability. Cable
rated 300V up to 18 AWG can be 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 “Standby/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 be used to externally monitor activation of the sensor. This terminal block 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-9C to indicate operational status. If this lamp is
OFF the DS-9C is not receiving power. If this lamp is steady ON the DS-9C is powered but not triggered.
If this lamp is FLA HING the DS-9C is powered on and triggered, the main relays are closed, and attached
equipment should be activated. Note that, even though snow or rain may have stopped, the DS-9C
indicator will continue to flash during the Delay-Off drying cycle.
Fine Adjustment for Efficient Operation
The DS-9C is shipped with the TRIG TEMP and DELAY OFF adjustments in the center position,
representing 39°F (3.9°C) and 60 minutes of Delay-Off time respectively. It is also set for highest
SENSITIVITY. Depending on local conditions the user may find that fine adjustment of the controls may
provide more satisfactory operation. If the sensor does not trigger during very wet snows the trigger
temperature may need to be adjusted higher. Constant triggers from snow falling from trees or overhangs
may be reduced by adjusting SENSITIVITY. The Delay-Off time can also be adjusted to provide clean
melt-off without excessive running time. Fine adjustment can both save operating expense and provide
more reliable operation. However, to keep reliability high, always make adjustments in small increments.
Moisture Grid Maintenance & Replacement
It is recommended that the DS-9C be powered down and the moisture grid wiped clean with clear water at
least once every 4 months. Heavy deposits may be removed using a non-metallic scouring pad (Scotch-
BriteTM or equivalent.) However, after a number of years, the corrosive elements left behind when water is
evaporated out of the moisture grid will eventually damage the grid rings. The moisture grid can be easily
replaced by ordering and installing a new MG-6 “Moisture Grid Assembly”. Reference the “Moisture
ensor Mounting & Termination” section for information on replacing the moisture grid.
Preseason Snow Detection Testing
It is always a good idea to test the operation of the DS-9C prior to the winter season. Procure some clean
water and, if the outdoor temperature is above the trigger point, a can of spray component cooler (Radio
Shack Part #64-4321 or equivalent.) Clean the moisture grid following the procedure outlined above and
allow it to dry. Apply power to the DS-9C, drip some of the water onto the moisture grid, then spray the
temperature sensor protruding from the base 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-9C will activate.
The user should hear the internal control relays close and see the green lamp blink. Proper operation has
been confirmed. Allow the grid to dry completely. To clear the Delay-Off timer place the override switch
into “Standby/Reset”, and then back 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-9C or any
controlled equipment.
Pour éviter la décharge électrique déconnectez toute la puissance avant d'ouvrir la couverture du DS-
9C.
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 Standby/Reset

GUTTER
SENSOR
DRIP EDGE
NEUTRAL BUS BAR
CB
BROWN
BLUE
LOAD CENTER RED
YELLOW
PUMP
CB
BOILER
LOW VOLTAGE
POWER SUPPLY
DS−9C
120VAC In, 120VAC Circulation Pump, 24VAC Boiler
NEUTRAL BUS BAR
CB
BROWN
BLUE
LOAD CENTER
POWER SUPPLY
DS−9C
277VAC LOAD
277VAC LOAD
CB
YELLOW
RED
277VAC In, Dual 277VAC Load, Heat Cable or imilar (Also Applies to 120VAC)
These are just some of the possible wiring schemes that can be used to connect the DS-9C to your load for
control. Remember, these are only suggestions. You should always consult a qualified electrician
or inspector to assure conformance with applicable local and national electrical codes!
DO NOT U E THE D -9C ENCLO URE A A JUNCTION BOX
Ne Pas Employer Une D -9C As Une Boîte De Jonction
6
Moisture Sensor Mounting & Termination
UThe D -9C enclosure and moisture sensor must be
mounted outdoors.U The remote DS-9C moisture sensor may
be mounted in a number of ways depending on the application.
The unit operates at low voltage and can withstand immersion
in water. For roof and gutter deicing applications the sensor
head may be mounted in the gutter against the fascia board
with a 1” “C”-style conduit clamp. Allow part of the sensor grid
to be exposed to snowfall. This allows the sensor to initially
trigger when snow starts falling and remain triggered as long as
the roof/gutter heater continues to drip melted snow buildup
from the roof edge when temperatures are below freezing.
Detection can also be achieved by installing the sensor head
near the top of the
downspout using a
1” conduit hanger
and mounting plate. As water is melted in the gutter it will run
down the downspout, hitting and retriggering the sensor.
Ten feet of cable is pre-terminated to the sensor head. This
cable may be shortened on the controller end as required. Do
not add additional cable to the interface. Erratic operation
may result. If the cable must be lengthened only use the EX-
50 extension kit. Strip the outer insulation and shield from the
cable and terminate each conductor following the color code
printed on the circuit board. The bare drain wire should be
installed into the terminal marked “S” for Shield. Two cable ties
are also included. Wrap these ties securely around the cable in
the enclosure to provide additional strain relief between the flexible enclosure gland and the free end of the
cable.
Setting the Configuration Switches and Adjustments
The following paragraphs and table outline the operating modes for the DS-9C and
explain the functions of the adjustments. Trigger temp (TT) is adjustable from
34°F-44°F (1°C-6°C) using the TRIG TEMP control. When ambient air
temperature (AT) is below this setting precipitation is assumed to be snow. When
above this setting, precipitation is assumed to be rain.
The DEL configuration switch activates the Delay-Off drying cycle timer on the DS-
9C. The timer allows the DS-9C to continue to operate and dry the heated surface through evaporation
once precipitation has stopped. The drying cycle reduces the chance of
moisture left behind refreezing into ice. This timer is restarted by each
sensor trigger. Therefore, the DS-9C will continue to operate as long as it is
triggered, then for the Delay-Off period once the trigger clears. All "sensor"
modes (DEL Off) provide a 2 minute Delay-Off time. When in "controller"
mode (DEL On) the Long Delay (LD) configuration switch determines the
time span of the drying cycle. The Delay-Off time can be adjusted from 30-90 minutes (LD Off) or 2-6
hours (LD On) using the DELAY OFF control.
3
DOWNSPOUT
SENSOR
MOUNTING
PLATE
1" CONDUIT
CLAMP

The Low Temperature Cutoff (LTC) option is typically used on snow melting systems with limited output
capacity where melting cannot be maintained at very low temperature. If selected, the snow sensor will
clear a trigger below 5°F (-15°C) even if snow is still falling. It will resume
normal operation above 9°F (-13°C). However, the sensor will remember if it
was triggered before the drop below 5°F or if snow was detected during the
cold period. If so, the sensor will execute one Delay-Off cycle when the
temperature rises above 9°F in order to melt any snow left behind during the
cold period. This is referred to as RECOVER mode. Care should be
exercised in using this mode as the potential exists for ice to be
formed on the melting surface.
The DS-9C precipitation sensor is very sensitive and can detect a single snow flake or rain drop. However,
if the DS-9C is mounted in an area susceptible to high winds, overhanging trees, or blowing ground snow,
nuisance triggering may occur. While proper placement is the best remedy, the SENSITIVITY control can
also be used to reduce nuisance triggering. An internal timer checks the precipitation sensor for moisture
and compares cleared time with triggered time. The highest sensitivity setting (toward MORE) triggers on
first detection. As the control is adjusted clockwise precipitation must be
detected for a longer period to be considered valid. The lowest sensitivity
setting (toward LESS) requires 120 seconds of detection before the unit
triggers. If a trace amount of snow blows onto the grid from a drift or
overhang it will likely be melted and evaporated in less than a minute.
Similarly, a very light snowfall may also clear quickly from the grid. If these
conditions should be ignored by the sensor the SENSITIVITY control can be adjusted as required.
However, to prevent non-triggering during a true event, it is recommended that the user start at highest
sensitivity (MORE), then adjust while monitoring operation over time.
THE UNIT MU T BE IN TANDBY/RE ET TO CHANGE CONFIGURATION WITCHE
L'Appareil Doit Être En Mode TANDBY/RE ET Pour Modifier Commutateurs De Configuration
Recommended Switch Settings by Function
Function Trigger LD Off LD On LTC DEL RAIN SNOW
Snow sensor w\o LTC TT>AT 2 Min 2 Min OFF OFF OFF ON
Snow sensor w\LTC TT>AT>5°F 2 Min 2 Min ON OFF OFF ON
Snow controller w\o LTC TT>AT 30-90 Min 2-6 Hr OFF ON OFF ON
Snow controller w\LTC TT>AT>5°F 30-90 Min 2-6 Hr ON ON OFF ON
Precipitation sensor Not Used 2 Min 2 Min X OFF ON ON
Precipitation controller Not Used 30-90 Min 2-6 Hr X ON ON ON
Rain sensor AT>TT 2 Min 2 Min X OFF ON OFF
Rain controller AT>TT 30-90 Min 2-6 Hr X ON ON OFF
LT thermostat w\o LTC TT>AT 2 Min 2 Min OFF X OFF OFF
LT thermostat w\LTC TT>AT>5°F 2 Min 2 Min ON X OFF OFF
X = Do Not Care
4
Manual Override Switch Operation
An override switch mounted on the side is provided for testing and special operational requirements.
Placing the switch in the AUTOMATIC position will allow the sensor to operate normally, activating the
controlled equipment as needed. Placing the switch in MANUAL ON will close the load relay, activating the
controlled equipment. The STANDBY/RESET position prohibits triggering of the unit, clears any active
delay timer, and opens the load relay. In order to reduce excessive runtime for the heater the “Manual
On” mode will remain in effect for up to 40 hours, then return to “Automatic” mode, even if the
switch is still in the “Manual On” position. However, any trigger of the system will restart the 40
hour “Manual On” timer. You may put the DS-9C back into “Manual On” mode by switching to
AUTOMATIC, then back to MANUAL ON. This will also restart the 40 hour timer.
If the override switch is placed in MANUAL ON for less than 2 seconds, then switched back to
AUTOMATIC the controller will execute one Delay-Off cycle. This can be used to clear a frost, hail, or
drifted snow buildup without the danger of leaving the system in a continuous “Manual On” condition.
“Standby/Reset” can still be used to clear this Delay-Off cycle.
Typical Load Wiring
The main relays are dry contacts and do not supply power directly to your load
The Yellow and Red load leads connect to main relays 1 & 2 respectively. Both relays in the DS-9C
activate together at all times. These relays act as normally open switches and are fully isolated from each
other. Switching capacity of the DS-9C is 30A per circuit, 2 separate circuits. While not as convenient as
directly supplying power for the load, dry contacts allow you to operate the DS-9C from one voltage while
controlling loads of a different voltage or supplied by different circuits without adding external relays or
contactors. The following diagrams show some possible wiring schemes for connecting the DS-9C to your
load. For clarity the green safety GROUND leads are not shown.
DO NOT ATTEMPT TO INCREA E WITCHING CAPACITY BY WIRING THE RELAY IN PARALLEL
Ne Pas Tenter D'Augmenter La Capacité De Commutation Par Le Câblage Des Relais En Parallèle
BROWN
BLUE
LOAD CENTER
CB
RED
YELLOW
240VAC LOAD
CB
240VAC LOAD
DS−9C
POWER SUPPLY
240VAC In, Dual 240VAC Load, Heat Cable or imilar
5

The Low Temperature Cutoff (LTC) option is typically used on snow melting systems with limited output
capacity where melting cannot be maintained at very low temperature. If selected, the snow sensor will
clear a trigger below 5°F (-15°C) even if snow is still falling. It will resume
normal operation above 9°F (-13°C). However, the sensor will remember if it
was triggered before the drop below 5°F or if snow was detected during the
cold period. If so, the sensor will execute one Delay-Off cycle when the
temperature rises above 9°F in order to melt any snow left behind during the
cold period. This is referred to as RECOVER mode. Care should be
exercised in using this mode as the potential exists for ice to be
formed on the melting surface.
The DS-9C precipitation sensor is very sensitive and can detect a single snow flake or rain drop. However,
if the DS-9C is mounted in an area susceptible to high winds, overhanging trees, or blowing ground snow,
nuisance triggering may occur. While proper placement is the best remedy, the SENSITIVITY control can
also be used to reduce nuisance triggering. An internal timer checks the precipitation sensor for moisture
and compares cleared time with triggered time. The highest sensitivity setting (toward MORE) triggers on
first detection. As the control is adjusted clockwise precipitation must be
detected for a longer period to be considered valid. The lowest sensitivity
setting (toward LESS) requires 120 seconds of detection before the unit
triggers. If a trace amount of snow blows onto the grid from a drift or
overhang it will likely be melted and evaporated in less than a minute.
Similarly, a very light snowfall may also clear quickly from the grid. If these
conditions should be ignored by the sensor the SENSITIVITY control can be adjusted as required.
However, to prevent non-triggering during a true event, it is recommended that the user start at highest
sensitivity (MORE), then adjust while monitoring operation over time.
THE UNIT MU T BE IN TANDBY/RE ET TO CHANGE CONFIGURATION WITCHE
L'Appareil Doit Être En Mode TANDBY/RE ET Pour Modifier Commutateurs De Configuration
Recommended Switch Settings by Function
Function Trigger LD Off LD On LTC DEL RAIN SNOW
Snow sensor w\o LTC TT>AT 2 Min 2 Min OFF OFF OFF ON
Snow sensor w\LTC TT>AT>5°F 2 Min 2 Min ON OFF OFF ON
Snow controller w\o LTC TT>AT 30-90 Min 2-6 Hr OFF ON OFF ON
Snow controller w\LTC TT>AT>5°F 30-90 Min 2-6 Hr ON ON OFF ON
Precipitation sensor Not Used 2 Min 2 Min X OFF ON ON
Precipitation controller Not Used 30-90 Min 2-6 Hr X ON ON ON
Rain sensor AT>TT 2 Min 2 Min X OFF ON OFF
Rain controller AT>TT 30-90 Min 2-6 Hr X ON ON OFF
LT thermostat w\o LTC TT>AT 2 Min 2 Min OFF X OFF OFF
LT thermostat w\LTC TT>AT>5°F 2 Min 2 Min ON X OFF OFF
X = Do Not Care
4
Manual Override Switch Operation
An override switch mounted on the side is provided for testing and special operational requirements.
Placing the switch in the AUTOMATIC position will allow the sensor to operate normally, activating the
controlled equipment as needed. Placing the switch in MANUAL ON will close the load relay, activating the
controlled equipment. The STANDBY/RESET position prohibits triggering of the unit, clears any active
delay timer, and opens the load relay. In order to reduce excessive runtime for the heater the “Manual
On” mode will remain in effect for up to 40 hours, then return to “Automatic” mode, even if the
switch is still in the “Manual On” position. However, any trigger of the system will restart the 40
hour “Manual On” timer. You may put the DS-9C back into “Manual On” mode by switching to
AUTOMATIC, then back to MANUAL ON. This will also restart the 40 hour timer.
If the override switch is placed in MANUAL ON for less than 2 seconds, then switched back to
AUTOMATIC the controller will execute one Delay-Off cycle. This can be used to clear a frost, hail, or
drifted snow buildup without the danger of leaving the system in a continuous “Manual On” condition.
“Standby/Reset” can still be used to clear this Delay-Off cycle.
Typical Load Wiring
The main relays are dry contacts and do not supply power directly to your load
The Yellow and Red load leads connect to main relays 1 & 2 respectively. Both relays in the DS-9C
activate together at all times. These relays act as normally open switches and are fully isolated from each
other. Switching capacity of the DS-9C is 30A per circuit, 2 separate circuits. While not as convenient as
directly supplying power for the load, dry contacts allow you to operate the DS-9C from one voltage while
controlling loads of a different voltage or supplied by different circuits without adding external relays or
contactors. The following diagrams show some possible wiring schemes for connecting the DS-9C to your
load. For clarity the green safety GROUND leads are not shown.
DO NOT ATTEMPT TO INCREA E WITCHING CAPACITY BY WIRING THE RELAY IN PARALLEL
Ne Pas Tenter D'Augmenter La Capacité De Commutation Par Le Câblage Des Relais En Parallèle
BROWN
BLUE
LOAD CENTER
CB
RED
YELLOW
240VAC LOAD
CB
240VAC LOAD
DS−9C
POWER SUPPLY
240VAC In, Dual 240VAC Load, Heat Cable or imilar
5

GUTTER
SENSOR
DRIP EDGE
NEUTRAL BUS BAR
CB
BROWN
BLUE
LOAD CENTER RED
YELLOW
PUMP
CB
BOILER
LOW VOLTAGE
POWER SUPPLY
DS−9C
120VAC In, 120VAC Circulation Pump, 24VAC Boiler
NEUTRAL BUS BAR
CB
BROWN
BLUE
LOAD CENTER
POWER SUPPLY
DS−9C
277VAC LOAD
277VAC LOAD
CB
YELLOW
RED
277VAC In, Dual 277VAC Load, Heat Cable or imilar (Also Applies to 120VAC)
These are just some of the possible wiring schemes that can be used to connect the DS-9C to your load for
control. Remember, these are only suggestions. You should always consult a qualified electrician
or inspector to assure conformance with applicable local and national electrical codes!
DO NOT U E THE D -9C ENCLO URE A A JUNCTION BOX
Ne Pas Employer Une D -9C As Une Boîte De Jonction
6
Moisture Sensor Mounting & Termination
UThe D -9C enclosure and moisture sensor must be
mounted outdoors.U The remote DS-9C moisture sensor may
be mounted in a number of ways depending on the application.
The unit operates at low voltage and can withstand immersion
in water. For roof and gutter deicing applications the sensor
head may be mounted in the gutter against the fascia board
with a 1” “C”-style conduit clamp. Allow part of the sensor grid
to be exposed to snowfall. This allows the sensor to initially
trigger when snow starts falling and remain triggered as long as
the roof/gutter heater continues to drip melted snow buildup
from the roof edge when temperatures are below freezing.
Detection can also be achieved by installing the sensor head
near the top of the
downspout using a
1” conduit hanger
and mounting plate. As water is melted in the gutter it will run
down the downspout, hitting and retriggering the sensor.
Ten feet of cable is pre-terminated to the sensor head. This
cable may be shortened on the controller end as required. Do
not add additional cable to the interface. Erratic operation
may result. If the cable must be lengthened only use the EX-
50 extension kit. Strip the outer insulation and shield from the
cable and terminate each conductor following the color code
printed on the circuit board. The bare drain wire should be
installed into the terminal marked “S” for Shield. Two cable ties
are also included. Wrap these ties securely around the cable in
the enclosure to provide additional strain relief between the flexible enclosure gland and the free end of the
cable.
Setting the Configuration Switches and Adjustments
The following paragraphs and table outline the operating modes for the DS-9C and
explain the functions of the adjustments. Trigger temp (TT) is adjustable from
34°F-44°F (1°C-6°C) using the TRIG TEMP control. When ambient air
temperature (AT) is below this setting precipitation is assumed to be snow. When
above this setting, precipitation is assumed to be rain.
The DEL configuration switch activates the Delay-Off drying cycle timer on the DS-
9C. The timer allows the DS-9C to continue to operate and dry the heated surface through evaporation
once precipitation has stopped. The drying cycle reduces the chance of
moisture left behind refreezing into ice. This timer is restarted by each
sensor trigger. Therefore, the DS-9C will continue to operate as long as it is
triggered, then for the Delay-Off period once the trigger clears. All "sensor"
modes (DEL Off) provide a 2 minute Delay-Off time. When in "controller"
mode (DEL On) the Long Delay (LD) configuration switch determines the
time span of the drying cycle. The Delay-Off time can be adjusted from 30-90 minutes (LD Off) or 2-6
hours (LD On) using the DELAY OFF control.
3
DOWNSPOUT
SENSOR
MOUNTING
PLATE
1" CONDUIT
CLAMP

Selecting a Mounting Location for the DS-9C
The small corded device with the interleaved grid is the remote precipitation or "moisture" sensor. The
brass cylinder protruding from the bottom of the DS-9C enclosure is the temperature sensor. For reliable
rain and snow detection the moisture sensor must be exposed to a clear view of the sky. Reference Page 3
"Moisture Sensor Mounting & Termination" for guidance in mounting the DS-9C moisture sensor. For
proper temperature detection the DS-9C enclosure must be mounted outdoors, away from furnace vents,
dryer vents, and other sources of heat. When powered, the DS-9C moisture grid will always remain hot.
This is normal. This allows the sensor to continuously melt/evaporate rain and snow from the grid.
The DS-9C enclosure can be mounted by screwing the base conduit hub onto an appropriate size free-
standing conduit or by 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 box be mounted below the DS-9C for termination of the power and load pigtails to
the building wiring.
Use Care When Replacing the Front Cover. Do Not Pinch the Gasket or Overtighten the crews.
LOAD1 LOAD2 INPUT POWER
SWITCH JACK
CONTROL/MONITOR JACK
GRID 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-9C provides external control/monitor capability. Cable
rated 300V up to 18 AWG can be 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 “Standby/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 be used to externally monitor activation of the sensor. This terminal block 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-9C to indicate operational status. If this lamp is
OFF the DS-9C is not receiving power. If this lamp is steady ON the DS-9C is powered but not triggered.
If this lamp is FLA HING the DS-9C is powered on and triggered, the main relays are closed, and attached
equipment should be activated. Note that, even though snow or rain may have stopped, the DS-9C
indicator will continue to flash during the Delay-Off drying cycle.
Fine Adjustment for Efficient Operation
The DS-9C is shipped with the TRIG TEMP and DELAY OFF adjustments in the center position,
representing 39°F (3.9°C) and 60 minutes of Delay-Off time respectively. It is also set for highest
SENSITIVITY. Depending on local conditions the user may find that fine adjustment of the controls may
provide more satisfactory operation. If the sensor does not trigger during very wet snows the trigger
temperature may need to be adjusted higher. Constant triggers from snow falling from trees or overhangs
may be reduced by adjusting SENSITIVITY. The Delay-Off time can also be adjusted to provide clean
melt-off without excessive running time. Fine adjustment can both save operating expense and provide
more reliable operation. However, to keep reliability high, always make adjustments in small increments.
Moisture Grid Maintenance & Replacement
It is recommended that the DS-9C be powered down and the moisture grid wiped clean with clear water at
least once every 4 months. Heavy deposits may be removed using a non-metallic scouring pad (Scotch-
BriteTM or equivalent.) However, after a number of years, the corrosive elements left behind when water is
evaporated out of the moisture grid will eventually damage the grid rings. The moisture grid can be easily
replaced by ordering and installing a new MG-6 “Moisture Grid Assembly”. Reference the “Moisture
ensor Mounting & Termination” section for information on replacing the moisture grid.
Preseason Snow Detection Testing
It is always a good idea to test the operation of the DS-9C prior to the winter season. Procure some clean
water and, if the outdoor temperature is above the trigger point, a can of spray component cooler (Radio
Shack Part #64-4321 or equivalent.) Clean the moisture grid following the procedure outlined above and
allow it to dry. Apply power to the DS-9C, drip some of the water onto the moisture grid, then spray the
temperature sensor protruding from the base 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-9C will activate.
The user should hear the internal control relays close and see the green lamp blink. Proper operation has
been confirmed. Allow the grid to dry completely. To clear the Delay-Off timer place the override switch
into “Standby/Reset”, and then back 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-9C or any
controlled equipment.
Pour éviter la décharge électrique déconnectez toute la puissance avant d'ouvrir la couverture du DS-
9C.
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 Standby/Reset

LIMITED WARRANTY
The DS-9C is warranted against defects in workmanship and materials for two years from date of sale.
This warranty does not apply to damage resulting from accident, misuse, or alteration nor where connected
voltage is more than 5 above the configured operating voltage, nor to equipment improperly installed or
wired or maintained in violation of this Owner’s Manual. No other written or oral warranty applies. No
employee, agent, dealer or other person is authorized to give any warranties on behalf of ASE.
Units returned for warranty repair cannot be modified from shipped condition and leads must
protrude a minimum of 6 inches from the base conduit hub. Repair costs of a modified unit will be
quoted as the unit must be returned to the original, unmodified condition prior to return shipping. The
customer shall be responsible for all costs incurred in the removal and/or reinstallation and shipping of the
product for repairs. Within the limitations of this warranty, inoperative units should be returned, freight
prepaid, to ASE, and we will repair or replace, at our option, at no charge to you with return freight paid by
ASE to destinations within the U.S. and Canada. It is agreed that such repair or replacement is the
exclusive remedy available from ASE and that ASE IS NOT RESPONSIBLE FOR DAMAGES OF ANY
KIND, INCLUDING INCIDENTAL AND CONSEQUENTIAL DAMAGE. Some states do not allow the
exclusion or limitation of incidental or consequential damages so the above exclusion may not apply to
you. The warranty gives you specific legal rights, and you may also have other rights which vary from state
to state.
Input: 100-277 VAC +/- 5 , 47-63 Hz
Control: 2 x 277 VAC @ 30A
Operating Temp: -40°C to +85°C
AUTOMATED SYSTEMS ENGINEERING, INC.
2519 E SAINT VRAIN ST
COLORADO SPRINGS, COLORADO 80909
PHONE: [phone] FAX: [phone]
Visit us on the Internet at: www.goase.com
CM
US
C
Intertek
T
E
D
S
I
L
Need Indoor Monitoring & Control?
Take a Look at the A E CDP-2
Simple Installation & Operation at a Competitive Price
Approved CS-xxx Interface Cable and EX-50 Sensor Extension Kits Are
Also Available
Visit www.goase.com for more information
CAUTION: Read all instructions carefully before installation.
ave this Installation Manual for future reference.
DS-9C
RAIN/SNOW SENSOR CONTROLLER
IN TALLATION MANUAL
INDICATOR
POWER
OFF
CM
AVERTISSEMENT: IL PEUT Y AVOIR UN CIRCUIT SECONDAIRE SOUS TENSION
CERTIFIED TO CAN/CSA STD C22.2 NO. 14
CONFORMS TO UL STD 508
100−277V AC 0.35 A 50/60 H
2 x 30 A 277V AC, 20 A 28V DC
ENCLOSURE TYPE 3R
RAIN/SNOW SENSOR CONTROLLER
WARNING: THIS UNIT MAY BE SUPPLIED BY MORE THAN ONE BREAKER
CONTROL
INPUT
USC
Intertek
3175102
CONTROL SWITCH
STANDBY/RESET
MANUAL ON
AUTOMATIC
T
S
L
I
E
D
ACTIVATED
ENGINEERING
DANGER
DS−9C
AUTOMATED
SYSTEMS
Manufactured By
AUTOMATED
SYSTEMS
ENGINEERING
2519 East aint Vrain t Colorado prings, Colorado 80909