tekmar 654 Snow Melting Control Installation - Manual (Page 13)

13 of 44 © 2013 654_D - 06/13
Item Field Range Access Description Set to
OFF or ON
User
Installer
HEAT RELAY
Current status of the heat relay. The boiler, pump or
electric cable is on when ON is displayed. The boiler,
pump or electric cable is off when OFF is displayed.
Conditions: Application Mode is set to PWM, Boil, Mix, or
Elec.
0 to 100% Installer
PWM RATE
Current duty cycle rate of the zone or boiler for each 20
minute cycle.
Conditions: Application Mode is set to PWM or Elec. Not
visible when Manual Override is not Auto.
OFF or ON
User
Installer
SYSTEM PUMP RELAY
Current status of the system pump relay.
Conditions: Application Mode is set to PWM, Boil or Mix and
Auxiliary Relay is set to SYS (system pump).
OFF or ON
User
Installer
ALERT RELAY
Current status of the alert relay.
Conditions: Application Mode is set to PWM, Boil or Mix and
Auxiliary Relay is set to ALRT (alert) or Application Mode is
set to Elec.
00:00 to 24:00
hours
User
Installer
MANUAL MELT TIME
When manually started, the display shows the remaining
run time before shutting off.
Conditions: Application Mode is set to PWM, Boil, Mix or
Elec.
00:00 to 6:00
hours
User
Installer
ADDITIONAL MELT TIME
When automatically started by a Snow/Ice Sensor 090
or 094, the display shows the remaining run time before
shutting off.
Conditions: Application Mode is set to PWM, Boil, Mix or Elec
and a snow / ice sensor 090 or 094 is installed.
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