Frost Protection Related Configuration - Ace Heating Solutions Atlas A050 Operating And Maintenance Manual

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Select Recycle & delay with retry limit to recycle and delay in event of Delta-T inverse limit up to Delta-T retry
limit

5-9 Frost Protection Related Configuration

5-9.1 To Enable Or Disable CH Loop Frost Protection
Configure Frost Protection Configuration
(Default: Disabled)
x
Select Enable to enable CH loop frost protection
x
Select Disable to disable CH loop frost protection
The CH frost protection feature can be enabled to turn the CH pump and possibly fire the burner whenever the CH
input sensor is too cold.
5-9.2 To Enable Or Disable DHW Loop Frost Protection
Configure Frost Protection Configuration
(Default: Disable)
x
Select Enable to enable DHW loop frost protection
x
Select Disable to disable DHW loop frost protection
The DHW frost protection feature can be enabled to turn the DHW pump and possibly fire the burner whenever the
DHW input sensor is too cold.
5-9.3 To Change Outdoor Frost Protection Setpoint
Configure Frost Protection Configuration
(Default: 32 F)
x
Type in desired temperature between 32 F and 240 F (0 C and 115 C)
This parameter provides the setpoint for frost protection based on outdoor temperature. When the outdoor
temperature falls below this threshold then frost protection will be active.
5-9.4 To Enable Or Disable Ll Frost Protection
Configure Frost Protection Configuration
x
Select Enable to enable LL frost protection
x
Select Disable to disable LL frost protection
The LL frost protection feature can be enabled to turn the pumps and possibly fire the burner whenever the input
sensor is too cold.
5-9.5 To Change LL Frost Protection Rate
Configure Frost Protection Configuration
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Type in desired firing rate for lead lag frost protection
Firing rate used when LL frost protection is active.
5-9.6 To Change CH Loop Pump Frost Protection Overrun Time
Configure Frost Protection Configuration
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Type in desired time between 0 to 5 minutes
This time indicates how long the CH pump should remain on after frost protection demand ends. That is, whenever
the pump has been on due to frost protection and then this demand ends, it always continues to run for the time given
by this parameter.
5-9.7 To Change DHW Loop Pump Frost Protection Overrun Time
Configure Frost Protection Configuration
CH Frost Protection Enable Textbox
DHW Frost Protection Enable Textbox
Outdoor Frost Protection Setpoint Textbox
LL frost protection enable Textbox (Default: Disable)
LL Frost Protection Rate Textbox (Default: 0%)
CH pump frost overrun time Textbox (Default: 5m0s)
DHW pump frost overrun time Textbox
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Rev 2.1