A Watts Water Technologies Company
USA:
Springfield, MO • Tel. (800) 276-249 • Fax: (47) 864-86 • www.wattsradiant.com
Canada:
Burlington, ONT. • Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
IS-WR-Snow_Melting_Control-654 328
© 203 Watts Radiant
6.
Install the Control
7.
User Interface
Front
Base
Home
Button
ENTER
Home Button
Return to the
Home Screen
Press and hold for 3
seconds to access the
programming menus.
Touch to go to the
next setting
Touch to quickly enter
the View menu
Touch to
adjust settings
Operation
Field
Status Field
Touch to display
Run Time,
Outdoor & Slab
Temperature
Touch to
Melt or Stop
Touch to turn system
off while away
8.
Critical Settings
Item Field
Description
APPLICATIon MoDE
Select the control application mode.
PWM = Hydronic Pulse Width Modulation.
BOIL = Hydronic boiler heats snow melting
system.
MIX = Hydronic mixing valve or injection
pump heats snow melting system.
ELEC = Electric snow melt.
090 = Tandem Snow/ Ice Detection
Default = PWM
SnoW / ICE SEnSoR
Select if a Snow / Ice Sensor 090 or Snow
Sensor 095 is installed.
Default = 090
SLAB SEnSoR
Select if a Slab Sensor 072 is installed to
measure the slab temperature.
Default = ON
SLAB PRoTECTIon
Select if the slab should be protected from large
temperature differentials to avoid cracking the
concrete due to high tensile stress.
Default = ON
The System Menu provides settings on how to configure and operate the mechanical equipment.
Item Field
Description
oUTDooR/BoILER RETURn SEnSoR
Select if the Out/Bret wiring terminal is
connected to an outdoor sensor or a boiler
return sensor.
Default = OUT
EConoMELT
EconoMelt allows the user to mechanically
remove snow then manually start the system
to melt the thin snow layer or ice.
Default = OFF
tekmarnet
®
SySTEM PUMP
Select if the system pump located on the
tekmarNet
®
System Control should operate
when the snow melt zone is heating.
Conditions: Application Mode is set to PWM,
Boil or Mix and Boiler Type is set to CTRL
(tN4 control).
Default = ON
AUxILIARy RELAy
Select if the auxiliary relay should function
as system pump or as an alert.
Default = SYS
MAxIMUM MELT TIME
Select to limit the amount of melting run
time.
Default = 3.0 days
