Priority 1, 2, 3 Menus, Basic Mode - Weil-McLain SlimFit 2 Series Manual

Commercial condensing gas-fired water boilers
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SlimFit
®
Series 2

PRIORITY 1, 2, 3 menus, BASIC mode

Boiler Model, Altitude and Fuel Type are
critical settings
result in severe personal injury, death or sub-
stantial property damage.
Figure 63
SlimFit BASIC mode PRIORITY options (USER MODE must be set to BASIC)
Screens shown above are typical only
Actual screens depend on control
settings chosen
70
commercial condensing gas
Failure to set correctly could
MENU ITEM
INPUTS ASSIGNED
SYSTEM TYPE
TARGET MOD
SENSOR
TARGET ADJUST
SUPPLY MAX
SUPPLY MIN
OD RESET MAX
OD RESET MIN
-
— Boiler Manual
fired water boiler
1. Access contractor menus by pressing and holding the UP and
DOWN arrow keys at the same time for 7 seconds.
2. See Figure 61, page 68 for the screen sequences up to the
CONTRACTOR menu.
DESCRIPTION
• Lists all the inputs already assigned to this PRI-
ORITY. Inputs will be listed as 1, 2, 3.
• Shows NONE if there are no inputs assigned to
this priority .
• Select the system type for this PRIORITY, based
on the heating terminal units in the system (see
Figure 59, page 67). Use the CUSTOM selection
to set the control for a different system type. The
factory preset values for SUPPLY MAX, SUPPLY
MIN, OD RESET MAX and OD RESET MIN are
chosen based on the normal best setting for the
terminal units.
• Choose SYSTEM SUPPLY or BOILER OUT to
determine which will be the primary temperature
sensor. The control will modulate boiler input to
reach the TARGET temperature. (Default is Sys-
tem Supply.) If system sensors are not used, boiler
defaults to using heat exchanger outlet sensor in
place of system sensor.
• Not adjustable in Basic Mode, see Advanced Manual
for information on adjusting this parameter.
• Select how target temperature is calculated by
control: NONE (no reset, fixed target temperature),
0-10V (target temperature based on analog input
from remote source), ODT (outdoor reset operation;
default setting).
• Not adjustable in Basic Mode, see Advanced Manual
for information on adjusting this parameter.
• Set SUPPLY MAX to the required supply water
temperature for the system at design maximum heat
loss (typically 180 °F for finned tube baseboard on
new installations.)
• SUPPLY MIN should equal the desired minimum
supply water temperature for the system.
• This line is not shown on priorities configured as
DHW system type or Heating system type, if out-
door temperature sensor not used. See Advanced
Manual for information on adjusting this parameter .
• OD RESET MAX is the outdoor temperature at
which the target temperature reaches its minimum
(SUPPLY MIN).
• This line is not shown on priorities configured as
DHW system type or Heating system type, if out-
door temperature sensor not used. See Advanced
Manual for information on adjusting this parameter .
• OD RESET MIN means the outdoor temperature at
which the target temperature reaches its maximum
value (SUPPLY MAX).
• OD RESET MIN should equal the ODT (outdoor
design temperature) for the installation's location.
• This line is not shown on priorities configured as
DHW system type or Heating system type, if out-
door temperature sensor not used. See Advanced
Manual for information on adjusting this parameter .
Part number 550-100-561/0224

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