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Setup – Boiler Setup Menu
Description
Range
Access
BOILER TYPE
Select the type of boiler operated by the control.
Mod = Modulating boiler with an adjustable firing rate using a 0-10V (dc) or 4-20 mA signal.
1 Stage = Single one-stage on/off boiler.
2 Stage = Single two-stage on/off boiler.
EMS = Modulating boiler with an adjustable target temperature using a 0-10V (dc) or 4-20 mA signal.
Enable = Enable for Application Mode PWM Zone or Mix.
Control = Call for heat to tekmarNet control.
Conditions: Always available.
Mod,
1 Stage,
2 Stage,
EMS,
Enable,
Control
Default = Mod
Installer
BOILER MODULATION TYPE
Select between a 0-10 V (dc) or 4-20 mA signal to control the modulating boiler.
Conditions: Available when 1) Application Mode is set to Boiler or Mix, and 2) Boiler Type
is set to Mod or EMS.
0-10 V
or
4-20 mA
Default: 0-10 V
Installer
BOILER MIN MODULATION
Set the boiler minimum modulation of the boiler burner.
Conditions: Available when 1) Application Mode is set to Boiler or Mix, and 2) Boiler Type
is set to Mod.
0 to 50%
Default = 0%
Installer
BOILER MODULATION DELAY
Set the time the boiler operates at the minimum firing rate before allowing the firing rate to
change. This allows the boiler ignition system to establish a flame.
Conditions: Available when 1) Application Mode is set to Boiler or Mix, and 2) Boiler Type
is set to Mod.
Off, 10 to 180
seconds
Default = Off
Installer
BOILER MOTOR SPEED
Set the time required for the modulating burner actuating motor to fully open the gas valve
or ramp the burner fan speed from off to full speed. Set to 30 seconds unless otherwise
recommended by the boiler manufacturer.
Conditions: Available when 1) Application Mode is set to Boiler or Mix, and 2) Boiler Type
is set to Mod.
30 to 230
seconds
Default = 30
Installer
BOILER DIFFERENTIAL
The temperature differential that the control uses to cycle the boiler on and off. The differential
is split evenly half above and half below of the boiler target.
Conditions: Available when Application Mode is set to Boiler or Mix.
Auto, 2 to 42°F
(1.0 to 23.5°C)
Default = Auto
Installer
BOILER MINIMUM
When Application Mode is set to Mixing or Mix:
The boiler return minimum protects both condensing and non-condensing boilers from cold
return water temperatures. The mixing valve is closed or the variable speed injection mixing
is reduced when the boiler return temperature falls below this setting.
When Application Mode is set to Boiler:
The minimum allowed boiler target temperature. Check the boiler manufacturer’s manual
for recommended return water temperatures.
Off, 50 to 180°F
(10.0 to 82.0°C)
Default = Off
Installer
EMS SIGNAL MINIMUM
The starting voltage for the EMS boiler signal. This voltage corresponds to the EMS Low
Temperature setting. Check the boiler manufacturer’s manual for the starting voltage for
the EMS signal range.
Conditions: Available when 1) Boiler Type is set to EMS, and 2) Boiler Modulation Type is
set to 0-10 V.
0.5 to 10 Vdc
Default = 0.5 Vdc
Installer
EMS LOW TEMPERATURE
The EMS boiler target temperature that corresponds to the EMS Signal Minimum voltage
or 4 mA. Check the boiler manufacturer’s manual for the minimum EMS target temperature.
Conditions: Available when Boiler Type is set to EMS.
50 to 210°F
(10 to 99.0°C)
Default = 50°F
(10.0°C)
Installer
EMS HIGH TEMPERATURE
The EMS boiler target temperature that corresponds to 10 V (dc) or 20 mA. Check the boiler
manufacturer’s manual for the maximum EMS target temperature.
Conditions: Available when Boiler Type is set to EMS.
50 to 210°F
(10.0 to 99.0°C)
Default = 210°F
(99.0°C)
Installer
