Tekmar 654 User Manual
User Manual
Snow Melting Control 654
Snow Melting
This brochure will provide you with the information you need to benefit the most from your snow melting control. Please visit
www.tekmarControls.com for more detailed information on this or any other tekmar product.
654_U
05/13
Replaces: New
Display
Touch to display
Run Time,
Outdoor & Slab
Status Field
Operation Field
Touch to turn system
off while away
Temperature
Touch to quickly enter
the View menu
Touch to go to the next setting
Touch to
Melt or Stop
Touch to adjust settings
Operation Field
MELT System is melting snow or ice.
IDLE System is idling.
Status Field
WWSD
CWCO Cold Weather Cut Out. Too cold to melt.
TIMED
WARM Slab is warming up to the melting temperature.
AWAY
Warm Weather Shut Down. The slab is naturally
warm enough to melt snow or ice.
Timed melting operation. System operates until
time has elapsed.
Away scene. No melting until the away scene is
exited.
Home Button
Return to the Home Screen
Press and hold for 3
seconds to access the
Home
Button
ENTER
programming menus.
STRM System is in storm operation.
OFF System is off.
PEND
WAIT
SENSOR
TRACK
Pending. The system has detected water but it is too
cold to operate or the schedule is in Idle or Off.
Zone priority in effect. Zone must wait until higher
priority zone finishes melting.
Tandem 090 sensor.
This zone tracks the melting operation of zone 1.
Symbols
HEAT ON
Heat is turned on.
tekmarNet
Communication is present.
A Watts Water Technologies Company
®
1 of 4
WARNING SYMBOL
Indicates an error is present.
ARROWS
Adjust the displayed setting.
© 2013 654_U - 05/13
Snow Melting Operation
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Snow melting operation can be started manually or automatically depending on which sensors are installed. Automatic
start and stop operation requires a Snow / Ice Sensor 090,
or 094. Automatic start with a timed stop requires a Snow
Sensor 095.
Manual Operation
Touch the Melt key on the control display. The control uses a
timer to operate the snow melting system and shuts off when
the timer has expired.
Press
Melt
Automatic Start and Stop
The system automatically starts as soon as snow or ice is
detected and stops when the slab is dry. A Snow / Ice Sensor 090
or 094 is required for automatic start and stop operation.
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Automatic Start and Timed Stop
The system automatically starts as soon as snow or ice is
detected and stops when the Manual Melt Run Time counter
has elasped. The Manual Melt Run Time setting is adjustable
in the Set Temp menu. A Snow Sensor 095 is required for
automatic start and timed operation.
Snow
Sensor
095
Tracked Start and Stop
The snow melting system can have multiple zones. Zones
without a snow / ice sensor or snow sensor can repeat the
run time of zone 1.
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Track Melt Start and Stop
Snow / Ice
Sensor
090 or 094
EconoMelt
When a Snow / Ice Sensor is installed, the control has the
option to EconoMelt. This allows the snow to be mechanically
removed using a plow or shovel and then manually starting
the snow melting system to melt the remaining last thin layer
of snow or ice. The system operates until the sensor is dry.
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Zone 1
Snow / Ice
Sensor
Records
Run Time
Scheduled Start and Stop
The snow melting system can start and stop based upon a
programmable schedule. While the schedule is in Event 1
(wake) or 3 (occupied), the control is in melt operation. When
the schedule is in Event 2 (unoccupied) or 4 (sleep) the control
is in idle or off operation.
Zone 2 Zone 3
Slab
Sensor
Repeats
Zone 1 Run
Time + Add
Melt Time
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Slab
Sensor
Repeats
Zone 1 Run
Time + Add
Melt Time
A Watts Water Technologies Company
Idle Operation
Idle operation pre-heats the slab whenever the slab is below
freezing. This allows the slab to quickly warm up to the
melting temperature in case snow or ice is detected. Idling
requires a large amount of energy and is recommened for
commercial or institutional installations where safety concerns
are paramount.
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© 2013 654_U - 05/13
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