Lennox iComfort E30 Installation And Setup Manual page 26

Table 7. Smart Hub Parameters
Parameter Description
SSP Heating
Cancel Coast Range is 0 to 0.75°F (0.0 to 0.42°C). Default is 0.25°F (-0.14°C). Adjust-
Counter ments are in increments of 0.125°F (0.07°C).
Increment Slope
SSP Heating
Cancel Coast Range is 0.25 to 2°F (0.14 to 1.11°C). Default is 0.5°F (0.28°C). Adjust-
Counter ments are in increments of 0.125°F (0.07°C).
Decrement Slope
SSP Cooling
Cancel Coast
Range is -0.75 to 0.0°F (-0.42 to 0.0°C). Default is -0.25°F (-0.14°C).
Counter Adjustments are in increments of 0.125°F (0.07°C).
Increment Slope
SSP Cooling
Cancel Coast Range is -2.0 to -0.25°F (-1.11 to -0.14°C). Default is -0.5°F (-0.28°C).
Counter Adjustments are in increments of 0.125°F (0.07°C).
Decrement Slope
When the outdoor temperature is above this setting, heating is not
SSP Heating
allowed if single set point is running. Range is 50 to 80°F (10.0 to
Lockout Outdoor
26.67°C). Default is 70°F (21.11°C). Adjustments are in increments of
Temp
1.0°F (0.56°C).
When the outdoor temperature is below this setting, cooling is not
SSP Cooling
allowed if single set point is running. Range is 30 to 60°F (-1.11 to
Lockout Outdoor
15.56°C). Default is 40°F (4.44°C). Adjustments are in increments of
Temp
1.0°F.
Options are disabled, conservative, medium and aggressive. Default is
disabled.
• Disable - There is no monitoring of Smart Alert Enable.
• Conservative - The system will wait longer to display any Smart Alert
Enable alarms. This options allow for a minimum chance for false
alarms being shown.
• Medium (default) - Extensive testing by the Lennox development
team to minimize the number of false alarms.
• Aggressive - Will shorten time to display any Smart Alert Enable
alarms.
Smart Alert
Smart Alert Enable function monitors:
Enable
• Thermostat set point setting
• Temperature reading
• Determine whether the system moving towards the desired
temperature setting or is unable to achieve the desire temperature
setting.
• Uses local climate design temperatures
• System run times.
NOTE: Depending on type of system (conventional heating/cooling or
heat pump system) and optional equipment not all system set-
tings will be displayed.
Table 7. Smart Hub Parameters
Parameter Description
When enabled, smooth set back begins recovery up to two hours before
the programmed time so that the programmed temperature is reached
at the corresponding programmed event time. Assume 12°F (6.6°C)
per hour for first-stage gas/electric heating and 6°F (3.3°C) per hour
for first-stage compressor based heating or cooling. With Smooth Set
Back disabled, the system will start a recovery at the programmed time.
Options are enabled or disabled. Default is enabled.
The SSR set point calculation is as follows:
For
New
SSR
CSP
For
New
SSR
HSP
Smooth Setback
Where: CSP = Cool Set Point
Recovery (SSR)
Rules for SSR:
• SSR is enabled when both "Smooth Setback Recovery" is set to
enabled (default) and the program schedule is turned on.
• SSR does NOT turn off stage delay timers.
• SSR will NOT change the dead band between heating and cooling
modes.
• SSR will not overshoot the target set point.
• SSR will reset if the user updates the program schedule during the
active SSR period
Enabled (default) setting: When enabled all stage delay timers (stages
2 through 6) are enabled and will serve to bring on additional stage(s) of
cooling or heating on a timed basis (default 20 minutes)
Disabled setting: All stages delay timers are disabled. Heat/cool stages
Stage Delay
are changed based on temperature
Timers
(First)
NOTE:
Second through Sixth Stage Delay timer (where applicable) - If staged
delay timers are "Enabled", the default is 20 minutes but can be pro-
Stage Delay
grammed from 5 to 120 minutes in 5-minute increments. If the first stage
Timers
fails to advance the ambient temperature toward the set point by 1.0°F
(2 through 6)
(0.56°C) in the programmed delay time, then the second stage is activat-
ed. However, if the system has a variable capacity furnace,
26
−
Current Program CSP Target Program CSP
Current
−
SSR CSP
N
−
Target Program HSP Current Program HSP
Current
−
SSR HSP N
HSP = Heat Set Point
N = number of 30 second intervals to the target program set
point
Note: N = 240 when target program set point is 2 hours away
(maximum recovery time)
The second-stage delay timer (when stage timers is Enabled)
is used for both HEATING and COOLING. However, if the sys-
tem has a variable capacity furnace, zoning or variable outdoor
unit, all stage delay timer will be ignored.