Slant/Fin CHS-399 - Manual (Page 3)

CHS Series Controller and Display
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Slant Fin Corp.
1
1.0 INTRODUCTION
The Controller and Display, together, form the control system of the Slant/Fin CHS boiler. All control
configuration parameters are stored in non-volatile memory in the CHS controller. Access to controller status
and configuration is achieved with the display. Interaction with the display is performed by physically touching
the buttons on the display keypad. Communication between the CHS controller and display is via EIA-485
interface using the Modbus RTU protocol.
When the appliance is powered there is a brief interval while the display retrieves data from the boiler control.
The display then shows the Home Screen (Summary screen) similar to the one depicted in Figure 1-2. The Home
Screen provides a summary of the overall operational status of the boiler. A series of menus, entered by pressing
the “i-Information” button, provide access to all boiler configuration parameters, information and diagnostics.
1.1
Clearing a Lockout
Figure 1-1 Clearing a Lockout
Clearing a Lockout – Any of the following methods
can be used to clear a Lockout:
1. Display - Clear the lockout from the display Home
Screen; press “OK” button on the keypad (see
Figure 1-2).
2. Controller - Clear the lockout by pressing the
RESET button situated on the boiler controller near
the indicator lights (see Figure 1-1).
3. Switch - Cycle power to the boiler using the power
on/off switch situated on the display console.
1.2
Keypad
See Figure 1-2 and Table 1-1 for a complete description of the functions of each keypad button.
Directional Arrow Buttons – are used to quickly navigate through the menu structures and within each
individual screen.
OK Button – Confirms/enters an item selection.
Back Button – returns the user to the previous screen.
i-Information Button – accesses the Main Menu where all control settings, diagnostics, etc are accessed
via a series of sub-menus.
Home Button – immediately returns the display to the Home Screen.
Reset Button