User Manual

Slant Fin Corp. │Controller and Display CHS Series
8
2.3.2 Manual Burner and Pump Operation
Figure 2-6 Manual Burner and Pump Operation Test Screens
Manual Burner Operation – test screen, allows the installer to manually control the firing rate of the burner.
Using the up and down (▲▼) buttons to highlight the menu options, and the “OK” button to select them, set
“Firing rate control” to “Manual”, then adjust “Manual firing rate” to the desired value.
Manual Pump Operation – test screen, allows the installer to manually turn the individual pumps on. Using the
up and down (▲▼) buttons to highlight the menu options, and the “OK” button to select them, set the desired
“Pump Control” to “On”.
The burner MUST be firing to initiate Manual Burner Operation.
Setting “Burner switch” to “Off” will inhibit burner operation, regardless of the operating
conditions.
When the test is complete, return the settings to “Auto” to allow the control to
automatically turn the circulators off and on and modulate the burner firing rate as needed.
Table 2-4 Manual Burner Operation Parameters
Parameter
Description
Default
Burner
Switch *
Allows the installer to manually switch the burner off and on.
On
Manual
firing rate *
Establishes the burner firing rate (blower RPM) when “Firing rate control” is set to
“Manual in Run” or “Manual in Run & Standby”. Feature may be useful as a diagnostic
tool; i.e. to test burner operating characteristic at a specific firing rate.
N/A
Firing rate
control *
Establishes the firing rate control of the boiler:
 Auto (firing rate – blower RPM is controlled by the boiler control)
 Manual in Run (blower RPM is set to the “Manual firing rate” setting; only when
burner is running).
 Manual in Run & Standby (blower RPM is set to the “Manual firing rate” setting).
Auto
* = Password protected
Burner switch
Manual firing rate
Firing rate control
Off
1625 RPM
Auto
Manual Burner Operation
CH Pump Control
DHW Pump Control
Boiler Pump Control
Auto
Auto
Auto
Manual Pump Operation