tekmar 284 Boiler Control User Manual
Page 44
© 2014
284_D - 08/14
44 of 60
A Watts Water Technologies Company
Source # Menu (2 of 2)
10 to 230 sec
Default: 30 sec
Access: ADV
MOTOR SPEED
The amount of time required for the modulating actuating motor to fully open the
gas valve or operate the blower from a stopped position to full speed.
This item is only available if Boiler Enable is set to AUTO, Boiler 1 Copy is set to
OFF & Boiler Type is set to MOD.
0 to 100%
Default: 0%
Access: ADV
START MODULATION
The percentage modulation required for ignition.
This item is only available if Boiler Enable is set to AUTO, Boiler 1 Copy is set to
OFF & Boiler Type is set to MOD.
0 to 50%
Default: 0%
Access: ADV
MINIMUM MODULATION
The minimum percentage modulation of the burner.
This item is only available if Boiler Enable is set to AUTO, Boiler 1 Copy is set to
OFF & Boiler Type is set to MOD.
50 to 100%
Default: 100%
Access: ADV
MAXIMUM MODULATION
The maximum percentage modulation of the burner.
This item is only available if Boiler Enable is set to AUTO, Boiler 1 Copy is set to
OFF & Boiler Type is set to MOD.
0.5 to 10.0
Default: 1.0
Access: ADV
EMS SIGNAL MINIMUM
The minimum analog signal used for the EMS (temperature input) boiler and
corresponds to the EMS Temperature Minimum.
This item is only available if Boiler Enable is set to AUTO, Boiler 1 Copy is set to
OFF, Boiler Type is set EMS & Modulation Type is set to 0-10.
50 to 210°F, OFF
(10.0 to 99.0°C)
Default: 50°F
Access: ADV
EMS TEMPERATURE MINIMUM
The temperature that corresponds to the bottom rail (minimum) of the analog signal
(4 mA / Vdc Signal Minimum) used for the EMS (temperature input) boiler.
This item is only available if Boiler Enable is set to AUTO, Boiler 1 Copy is set to
OFF & Boiler Type is set to EMS.
50 to 210°F, OFF
(10.0 to 99.0°C)
Default: 210°F
Access: ADV
EMS TEMPERATURE MAXIMUM
The temperature that corresponds to the top rail (maximum) of the analog signal
(20 mA / 10.0 Vdc) used for the EMS (temperature input) boiler.
This item is only available if Boiler Enable is set to AUTO, Boiler 1 Copy is set to
OFF & Boiler Type is set to EMS.
120 to 240°F, OFF
(49.0 to 115.5°C, OFF)
Default: OFF
Access: ADV
MAXIMUM OUTLET TEMPERATURE
The maximum boiler outlet temperature used for boiler outlet temperature limiting.
The control will turn off the boiler if the boiler outlet temperature rises to the
maximum outlet temperature. If OFF is selected, the control will only monitor the
boiler outlet temperature.
This item is only available if Boiler Enable is set to AUTO & the Boiler 1 Copy is
set to OFF.
OFF, AUTO, 0:10 to
20:00 min
Default: AUTO
Access: ADV
BOILER PUMP/VALVE POST PURGE
The time the boiler pump remains on (or isolation valve remains open) once the boiler
turns off. If Auto is selected the control will automatically determine the time.
This item is only available if Boiler Enable is set to AUTO & the Boiler 1 Copy is
set to OFF.