Submittal Sheet

Job __________________________
Designer ______________________
Contact _______________________
Snow Melting Control 654
654_C
05/13
Snow Melting Replaces: New
Submittal
© 2013 654_C - 05/13
1 of 2
A Watts Water Technologies Company
Features
--------------------------
--------------------------
Automatic Snow / Ice Detection
Supports Both Inslab & Retrofit Aerial
Sensors
Manual Start With Timer
Programmable Schedule
tekmarNet
®
Communication Compatible
Warm Weather Shut Down
Cold Weather Cut Out
Idling
Snow Melt Zoning With Priority
Tandem Snow / Ice Detection
Slab Protection
Storm
EconoMelt
Manual Override
Snow Melt Zone Tracking
Scenes
Away Key
Exercising
Alert Output
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Specifications
-----------------------------------------------------
-----------------------------------------------------
The Snow Melting Control 654 is designed to operate electric or hydronic equipment to melt snow or ice from any surface including
driveways, walkways, patios, business entrances, parking ramps, loading docks, hospital entrances, helipads or car wash bays. The
surface temperature for snow melting is controlled automatically to reduce operating energy costs. The 654 has an automatic start
and stop function when used with the Snow/Ice Sensor 090 or 094. Automatic start with a timed stop is available when used with the
Snow Sensor 095. The 654 can operate a dedicated hydronic boiler or a mixing device. Isolation relays are required to operate line
voltage pumps. Electric systems require a separate GFCI and electrical relay contactor.
SPECIAL REQUIREMENTS
Requires a Snow / Ice Sensor 090 or 094, or a Snow Sensor 095 for automatic start operation. A Slab Sensor 072 or 073 is
recommended when a 090 or 094 is not installed.
Snow Melting Control 654 tekmarNet
®
Electric or Hydronic Boiler / Mixing
Literature 654_A, 654_C, 654_D, 654_Q, 654_U
Control Microprocessor control. This is not a safety (limit) control
Packaged weight 1.3 lb. (590 g)
Dimensions 5” H x 3-1/4” W x 15/16” D (127 x 82 x 23 mm)
Enclosure White PVC plastic, NEMA type 1
Ambient conditions
-4 to 122°F (-20 to 50°C), < 90% RH non-condensing, outdoor
use permitted when installed inside a NEMA 3 enclosure
Power supply
24 V (ac) ±10%, 60 Hz, Class 2, 16 VA standby, 100 VA fully
loaded
Relay capacity 24 V (ac) 2 A, 3.6 A combined
Modulating output
0-10 V (dc), 500  minimum load impedance, 4-20 mA 1 k
max load impedance
Sensors NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
–Included Outdoor Sensor 070, Universal Sensor 082
–Optional tekmar type #: 071, 072, 073, 082, 090, 091, 094, 095
Warranty Limited 3 Year (See 654_D for full warranty)
Side ViewFront View
5”
(127 mm)
3-1/4”
(82 mm)
15/16”
(23 mm)
Mounting Base
654
Slab
Brn
+
Mod tN4Aux Ht R C
Bret
Out/
ComCom
BlkYel Blu Red Sup
No Power
1-1/2”
(38 mm)
9/16”
(14 mm)
CL
1-7/8”
(47 mm)
3/4”
(19 mm)
CL
CL
13/16”
(20 mm)
4”
(102 mm)
2-1/2”
(64 mm)
29/32”
(23 mm)
3-1/4”
(83 mm)