tekmar 654 Snow Melting Control Installation - Manual (Page 21)

21 of 44 © 2013 654_D - 06/13
The System Menu provides settings on how to configure and operate the mechanical equipment.
System Menu
Item Field Range Access Description Set to
PWM, BOIL, MIX,
ELEC, 090
Default = PWM
Installer
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 using 090 or 094
NONE,
090 (or 094),
095
Default = 090
Installer
SNOW / ICE SENSOR
Select if a Snow / Ice Sensor 090 or 094, or Snow Sensor
095 is installed.
OFF or ON
Default = ON
Installer
SLAB SENSOR
Select if a Slab Sensor 072 or 073 is installed to measure
the slab temperature.
Conditions: Application Mode is set to PWM, Boil or Mix
and Snow / Ice Sensor is set to None or 095.
OFF or ON
Default = ON
Installer
SLAB PROTECTION
Select if the slab should be protected from large
temperature differentials to avoid cracking the concrete
due to high tensile stress.
Conditions: Application Mode is set to Boil or Mix and Snow
/ Ice Sensor is set to 090 or Slab Sensor is set to On.
OFF, OUT
(Outdoor) or
BRET (Boiler Return)
Default = OUT
Installer
OUTDOOR OR BOILER RETURN SENSOR
Select if the Out/Bret wiring terminal is connected to an
outdoor sensor or a boiler return sensor.
Conditions: Application Mode is set to PWM, Boil or
Mix or Elec.
OFF or ON
Default = OFF
Installer
ECONOMELT
EconoMelt allows the user to mechancially remove snow
then manually start the system to melt the thin snow
layer or ice.
Conditions: Application Mode is set to PWM, Boil or
Mix or Elec.
OFF or ON
Default = ON
Installer
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).
SYS (System Pump)
or
ALRT (Alert)
Default = SYS
Installer
AUXILIARY RELAY
Select if the auxiliary relay should function as system
pump or as an alert.
Conditions: Application Mode is set to PWM, Boil or Mix.
0.5 to 7.0 days, OFF
Default = 3.0 days
Installer
MAXIMUM MELT TIME
Select to limit the amount of melting run time after snow
is automatically detected by a Snow / Ice Sensor 090 or
094, or a Snow Sensor 095.
Conditions: Application Mode is set to PWM, Boil or
Mix or Elec.