Tekmar Boiler Control 265 - Adjust Menu - Boiler Performance Settings (1 of 2); Boiler Differential and Delays; Boiler Mass, Speed, and Output Limits

© 2010 D 265 - 07/10 30 of 36
Adjust Menu (2 of 5)
B
Boiler Minimum The minimum allowed boiler target
temperature. Check the boiler(s) manufacturer’s manual
for recommend supply water temperatures.
OFF, 80 to 180°F
(OFF, 27 to 82°C)
Default = 140°F (60°C)
B
Boiler Maximum The maximum allowed boiler target
temperature.
120 to 225°F, OFF
(49 to 107°C, OFF)
Default = 200°F (93°C)
B
Boiler Differential The temperature differential that the
control is to use when it is operating the boiler(s).
Au (Auto), 2 to 42°F
(Au, 1 to 23°C)
Default = Au
A
Combustion Air Damper Delay The time allowed for the
combustion air damper to open before the first boiler is
fired.
This item is only available if the Alert / C.A. DIP switch
is set to C.A.
0:00 to 3:00 minutes
(1 sec increment)
Default = 1:00 min
B
Stage Delay The minimum time delay between the
operation of boilers.
This item is only available when at least two boilers are
set to Au (automatic) or CP1 (copy 1).
Au (Auto), 0:30 to 19:55
min (5 second increment)
Default = Au
B
Fire Delay 1 The time delay the control can expect
between the time that the boiler contact closes to enable
the boiler and when the burner actually fires.
This item is only available when Boiler 1 is set to Au
(automatic).
0:00 to 4:00 minutes
(1 sec increment)
Default = 0:10 min
B
Boiler Mass 1 The thermal mass characteristics of
Boiler 1.
This item is only available when Boiler 1 is set to Au
(automatic).
1 (Lo), 2 (Med), 3 (Hi)
Default = 2
B
Motor Speed 1 The amount of time required for the modulating
actuating motor to fully open the gas valve or operate the fan
speed from a stopped position to full speed.
This item is only available when Boiler 1 is set to Au
(automatic).
10 to 230 sec
Default = 30
B
Minimum Boiler 1 Output The minimum boiler 1 output
in 10,000’s of BTU / hour.
This item is only available when Boiler 1 is set to Au
(automatic).
1 to 1999
Default = 10
B
Maximum Boiler 1 Output The maximum boiler 1
output in 10,000’s of BTU / hour.
This item is only available when Boiler 1 is set to Au
(automatic).
1 to 1999
Default = 50
B
Boiler Modulation 1 Selects either a 4 to 20 mA or a 0
to 20 mA output signal.
This item is only available when Boiler 1 is set to Au
(automatic).
4:20, 0:20
Default = 4:20
B
Minimum Modulation 1 The minimum percent
modulation of the burner.
This item is only available when Boiler 1 is set to Au
(automatic).
0 to 50%
Default = 0%
Display
Description
Range
Section Installer
Adv
Actual
Setting