Knight 100 Series, Руководство по обслуживанию

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1
Service
(continued)
Anti-cycling
Anti-Cycling Time
Once the burner turns off, a set amount of time must elapse
before the control will respond to a new demand. The control
will block the new heat demand and anti-cycling will be
shown in the display until the time has elapsed or the water
temperature drops below the
Anti-Cycling Override Differential
parameter . This parameter can be changed by the installer by
accessing the Anti-Cycling Time parameter . The time range for
this parameter is 1 minute to 10 minutes. The default value is
1 minute.
Anti-Cycling Override Differential
The control will bypass the anti-cycling time if the inlet water
temperature drops too much. The control will use the inlet
water temperature present at the boiler when it shuts off as
the starting point. If the inlet temperature drops below the
temperature parameter the control will abort anti-cycling and
allow the boiler to fire. This parameter can be changed by the
installer by accessing the
Anti-Cycling Override Differential
parameter . The temperature range of this parameter is 0°F
(0°C) to 54°F (30°C). The default value is 10°F (6°C).
Ramp Delay (Enable / Disable)
This parameter allows the installer to enable or disable the SH
ramp delay. The default setting is disabled.
Modulation Factor
This parameter allows the installer to reduce the responsiveness
of the temperature control function, for situations where, for
example, redundant heating capacity is installed. The values
that are available are 40, 50, 60, 70, 80, 90, and 100, with 100
being the most responsive. The default value is 100.
Boost Temperature
If a SH demand lasts longer than the programmed time
delay setting and there have been no DHW demands,
the control will increase the water temperature set point
by the amount in this parameter. If the SH demand
continues through another time period, the set point will
be increased again. This will continue until either the SH
demand ends, a maximum of 20 increases has occurred,
or SH1, SH2, SH3 maximum set point has been reached.
Once the SH demand has been satisfied the set point will
revert back to its calculated setting. The boost temperature
can be changed by the installer by accessing the
Boost
Temperature parameter . The temperature range of this
parameter is 0°F (0°C) to 25°F (14°C). The default value is
0°F (0°C). This feature will be active if this parameter is set
to anything other than 0°F (0°C).
Boost Time
The boost time parameter sets the amount of time that must
elapse with a SH demand before the water temperature
calculated set point will be increased. This parameter can
be changed by the installer by accessing the
Boost Time
parameter . The time range for this parameter is 0 minutes
to 55 minutes. The default value is 0 minutes.
Figure 1-2 Ramp Delay Interval
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Service Manual