View menu, Mode 8 – external direct drive operation, Em-40-sm service manual application – Slant/Fin EM-10 Service Manual User Manual
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EM-40-SM Service Manual
Application
Mode 8 – External Direct Drive Operation
Mode 8 – External Direct Drive Operation
The control receives a heat demand provided via an
external analog input signal from a tekmar sequencing
control (such as a 275). The control turns on the boiler
pump and the Stage 1, 2, 3 and 4 contacts according to
the external input signal.
Mode 8 – External Direct Drive Operation - View Menu
BTC
Mode 8
External
Control
BTC
0-10 V (dc)
Direct Drive
Factory
Installed
Boiler
Outlet
Sensor
Factory
Installed
Boiler
Outlet
Sensor
Boiler Inlet Sensor (Optional)
External
Control
Sensor
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14 to 266°F
(-10 to 130°C)
BOILER OUTLET
Current boiler outlet water temperature as measured
by the boiler outlet sensor.
Factory
Installer
14 to 266°F
(-10 to 130°C)
BOILER INLET
Current boiler inlet water temperature as measured by
the boiler inlet sensor.
Note: This item is only available when a boiler inlet
sensor is installed.
Factory
Installer
0 to 252°F
(0 to 140°C)
BOILER DELTA T
Current temperature difference between the boiler outlet
sensor and the boiler inlet sensor.
Note: This item is only available when a boiler inlet
sensor is installed.
Factory
0 to 999
BOILER ON HOURS
The total number of running hours of the boiler since
this item was last cleared. Clear the numbers of hours
by pressing and holding the and buttons together
while viewing this item.
Factory
VIEW MENU
After the last item, the control returns to the first item in the menu.
The View menu items display current operating
temperatures and system status information. Use the
Item button to view items in this menu.
Item
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