Weil-McLain SlimFit Manual page 73

SlimFit
™
commercial condensing gas
Sola control parameter table
Figure 85
(continued) Sola CONFIGURATION VALUES — setup options — White text on black titles are configuration
groups — see Figure 62, page 61 for location of configuration group in menus
Menu/Item Units
Enable
Maximum outdoor
°F or °C
temperature
Minimum outdoor
°F or °C
temperature
Low water
°F or °C
temperature
Minimum boiler
water temperature °F or °C
Outdoor boost
hr mm ss
time
Outdoor boost
°F or °C
maximum off point
SHOW LINE
DHW enable
Priority source
Priority method
Setpoint °F or °C
Time of day
°F or °C
setpoint
Off hysteresis °F or °C
On hysteresis °F or °C
DHW priority
hr mm ss
override time
DHW priority vs
CH
DHW priority vs
Lead Lag
Part number 550-100-116/0713
-
Low High
Default
Value Value
Outdoor Reset Configuration
Enable or Disable Enabled
50°F 100°F 80°F
(10°C) (38°C) (27°C)
-40°F 100°F 0°F
(-40°C) (38°C) (-18°C)
60°F 190°F 120°F
(16°C) (88°C) (49°C)
60°F 190°F 0°F
(16°C) (88°C) (-18°C)
0m 0s 60m 0s 0m 0s
70°F 190°F
Unconfigured
(21°C) (88°C)
Domestic Hot Water Configuration
Enable or Disable Disabled
DHW Heat
See description
Demand
Drop after
See description
priority time
120°F 190°F 190°F
(49°C) (88°C) (88°C)
120°F 190°F 180°F
(49°C) (88°C) (82°C)
2°F 10°F 5°F
(1°C) (6°C) (3°C)
2°F 10°F 5°F
(1°C) (6°C) (3°C)
0m 0s 720m 0s 60m 0s
DHW>CH or
DHW>CH
CH>DHW
DHW>Lead Lag or DHW >
Lead Lag>DHW Lead Lag
fired water boiler
(continued)
Description
If outdoor reset is enabled, then the current outdoor temperature is
used to determine the Setpoint by interpolation using CH Setpoint (or
CH Time-Of-Day Setpoint if TOD is on), the low water temperature,
and the min and max outdoor temperatures.
This parameter determines the maximum outdoor temperature for
the CH outdoor reset graph. At or above the maximum outdoor
temperature, the water temperature setpoint will be at the low water
temperature.
This parameter determines the X coordinate of one point on the CH
outdoor reset graph. At this outdoor temperature the setpoint will be
the CH setpoint (or the CH TOD setpoint, if TOD is on).
This parameter provides the CH outdoor reset setpoint when the
outdoor temperature is at or above the maximum specified by the Max
outdoor temperature.
The Sola control will always use a setpoint at least as warm as this
setting, even when the reset curve would call for a lower temperature.
When CH outdoor reset is active and demand has not been met for a
period of time, then the setpoint is boosted, and when demand is met,
it steps back toward normal. This parameter provides the time interval
for each step, both up and down.
This limits the maximum setpoint temperature, preventing setpoint
from exceeding this value when setpoint is increased due to Boost.
Press this button to see a graph of the reset curve.
This parameter determines whether the DHW loop is enabled or
disabled. When disabled the demand caused by the DHW sensor is
ignored. It may be disabled to turn it off temporarily or because the
application does not use this feature.
DHW Heat demand or
Disabled (disables DHW priority)
Boost DHW during priority time
Drop after priority time
This Setpoint is used for DHW whenever the time-of-day switch is off
or not connected (unused).
This Setpoint is used for DHW when the time-of-day switch is on.
The off hysteresis is added to the DHW Setpoint to determine the
temperature at which DHW burner demand turns off.
The on hysteresis is subtracted from the DHW Setpoint to determine
the temperature at which DHW burner demand turns on.
If this parameter is non-zero then a DHW demand will shift its priority
vs. other demand sources according to the specified time. The priority
override timing is reset when demand from the DHW source turns off.
This parameter determines the priority of DHW vs. CH call-for-heat,
when both of these are enabled and active. (The DHW priority also
may shift for a period of time, as specified by DHW Priority time and
method parameters.)
This parameter determines the priority of DHW vs. CH call-for-heat,
when both of these are enabled and active. (The DHW priority also
may shift for a period of time, as specified by DHW Priority time and
method parameters.)
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