tekmar 667 Snow Detector & Melting Control - Manual (Page 19)

19 of 28 © 2002 D 667 - 09/02
667 Adjust Menu (2 of 2)
The Cold Weather Cut Off temperature for the
snow melting system.
The maximum supply water temperature for the
mixing system.
-30 to 50°F
(-34 to 10°C)
Default = 10°F (-12°C)
80 to 210°F, OFF
(27 to 99°C, OFF)
Default = 150°F (66°C)
B1
Item Field
Access
Level
Description Range
Actual
Setting
Section LT
D
USER INS
T
AD
V
A
C
B1
C1
A
C1
C1
C1
A
SUP, RET, NONE
Default = SUP
The location of the boiler sensor. This affects
operation of the boiler contact.
OFF, 80 to 180°F
(OFF, 27 to 82°C)
Default = 140° (60°C)
10 to 70°F, OFF
(5 to 39°C, OFF)
Default = OFF
The maximum
∆T for the snow melting system.
The differential for the snow melting system.
Boil SENS = SUP
The minimum temperature allowed for the boiler
target temperature.
Boil SENS
≠ NONE
AUTO, 2 to 42°F
(AUTO, 1 to 23°C)
Default = AUTO
The time delay the control can expect between
the time the boiler contact closes and the
boiler fires.
Boil SENS = SUP
0:00 to 3:00 minutes
Default = 0:10 min
LITE, MED, HEVY
Default = MED
The thermal mass characteristics of the boiler
that is being used.
Boil SENS = SUP
The frequency with which the control exercises
the pumps and valves that are operated by
the control.
30 to 240 hours,
(in 10 hour steps)
Default = 70 hr