60
Rev 2.1
alert and holds while waiting for a delay to expire, and
after the delay it tries again.
Recycle & delay with limit: Same as above but with
retry limit. If limit count is reached lockout will occur.
Table 4.13 – Other Limit Configuration Parameters
4-27 Frost Protection Configuration Parameters
Table 4.14 displays Frost Protection configuration parameters.
Refer to 5-9 FROST PROTECTION RELATED CONFIGURATION for Frost Protection parameter programming.
Parameter Comment Password
CH frost protection enable Disabled or enable CH frost protection
The CH frost protection feature can be enabled to run
pumps and possibly fire the burner whenever the CH
input sensor is too cold.
Installer
DHW frost protection enable Disabled or enable DHW frost protection
The DHW frost protection feature can be enabled to run
pumps and possibly fire the burner whenever the DHW
input sensor is too cold.
Installer
LL frost protection enable Disabled or enable LL frost protection. Installer
Outdoor frost protection setpoint No limit Installer
LL frost protection rate Rate used when LL frost protection is active. Installer
CH pump frost overrun time 0-600 seconds (0 = Not configured) Installer
DHW pump frost overrun time 0-600 seconds (0 = Not configured) Installer
Table 4.14 – Frost Protection Configuration Parameters
4-28 DHW Storage Configuration Parameters
Table 4.15 displays DHW Storage configuration parameters.
Refer to 5-10 DHW STORAGE CONFIGURATION for DHW Storage parameter programming.
Parameter Comment Password
DHW storage enable Disabled or enable DHW Storage.
If it is disabled then the other DHW storage parameters
are ignored.
Installer
Storage time This parameter provides the DHW storage time. When
enabled and normal DHW call for heat is satisfied the
DHW storage demand will persist for this time interval. If
normal demand returns the timer is reset.
Installer
DHW storage setpoint This parameter provides the setpoint used during DHW
storage demand.
Installer
DHW storage on hysteresis Differential above setpoint when boiler is turned on
2 °F to 30 °F (1 °C to 16 °C)
Installer
DHW storage off hysteresis Differential above setpoint when boiler is turned off
2 °F to 30 °F (1 °C to 16 °C)
Installer
Table 4.15 – DHW Storage Configuration Parameters
4-29 Warm Weather Shutdown Configuration Parameters
Table 4.16 displays Warm Weather Shutdown configuration parameters.
Refer to 5-11 WARM WEATHER SHUTDOWN CONFIGURATION for Warm Weather Shutdown parameter
programming.
Parameter Comment Password
Enable Disabled or enable WWSD.
Disable: WWSD is not active.
Shutdown after demand ended: Any current CH
demand that is present prevents WWSD from becoming
true. WWSD becomes true when CH demand is
satisfied.
Shutdown immediately: When WWSD becomes true, it
immediately cause CH demand to end.
Installer
Setpoint Setpoint temperature at which activates WWSD. Installer
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