User Guide

20
EM-40-SM Service Manual
Mode 3 – Dedicated DHW with Parallel Piping - Adjust Menu (1 of 2)
Item Field Range Description Access Setting
1 to 8
MODE
Select the operating mode for the control.
Factory
Installer
PId or P
STAGE MODE
Select the staging operation to be either
automatic or manual.
(PId = automatic)
(P = proportional)
Factory
Installer
OFF, 70 to
190°F
(21 to 88°C)
TAN K TAR GET
Select the dedicated domestic hot water
tank target temperature.
Factory
Installer
Au, 2 to 10°F
(1 to 6°C)
TAN K DIFFERENTIAL
Select the dedicated domestic hot water tank
differential. The DHW sensor temperature
must fall below this setting before the
boiler will turn on.
Factory
Installer
120 to 225°F
(49 to 107°C)
BOILER OUTLET MAXIMUM
Select the maximum boiler outlet
temperature. Exceeding this temperature
shuts off the boiler.
Factory
0:00 to 3:00 min
(1 second
increments)
FIRE DELAY
Select the amount of time required for
combustion pre-purging, ignition and the
flame to be established.
Note: This setting is only available when
STAGE MODE is set to Pld.
Factory
1 (Lo) or
2 (Med) or
3 (Hi)
BOILER MASS
Select the thermal mass of the boiler.
Note: This setting is only available when
STAGE MODE is set to PId.
Factory
Installer
ADJUST MENU
Continued on next page.
The Program menu items are the programmable settings
used to operate the system. Press and hold all three
buttons simultaneously to enter the Program menu.
I
tem
I
tem
Change Value
Next ItemEnter Adjust Menu
Default
Setting 4
NOT VALID
FOR ELECTRIC
BOILER
APPLICATION