Nortec NH Series E.Software Initial Self-Test, Self-TestMessages, G.Self-Help, Page 33, 10-20

E.SOFTWARE INITIAL SELF-TEST

	Table 2. Self-Test Messages
Graphic Display	Explanation/Comments (What You Read)
NHTC START-UP:	The unit is beginning its bootup routine, along with powering up the EEPROM on the
INIT CYLINDER	SMART Cylinder
NHTC START-UP:	The unit reads the type of cylinder to provide maximum control of operation. If it
READING CYLINDER DATA	unable to do so it will skip the rest of the self-test and fault out.
SELF TEST CYLINDER	Unit energizes the fill valve for 1 second.
Inlet Valve
ESC
SELF TEST CYLINDER	Unit energizes the drain valve for 2 seconds.
Drain Valve
ESC
SELF TEST CYLINDER	Unit closes the contactor for 2 seconds.
Heat Cont.
ESC
SELF TEST CYLINDER	Unit activates the pump (if present) for 2 seconds.
Pump
ESC
SELF TEST CYLINDER	Unit activates the bleed valve (if present) for 2 seconds.
Bleed Valve
ESC
SELF TEST REMOTE	Unit activates the steam relay for remote fault indication package and green light.
Steam Relay
ESC
SELF TEST REMOTE	Unit activates the service relay for remote fault indication package and yellow light.
Service Relay
ESC
SELF TEST REMOTE	Unit activates the error relay for remote fault indication package and red light.
Error Relay
ESC
SELF TEST REMOTE	Unit activates the unit on relay.
Oper. Relay
ESC

F.SOFTWARE FLOW CHART WITH DEFINITIONS

(1)The flow chart in Figure 7 depicts the software logic and definitions.

G.SELF-HELP

(1)The microcomputer applies corrective actions whenever its self-diagnostics identifies a problem that it is able to correct by itself. If the corrective action is not successful then it displays a system message. If the corrective action requires a service person, then the microcomputer’s only resort is to stop the unit and display a system message. The unit never stops unless it has to.

(2)After three days of no call from either the on/off controls or the modulating controls, when active, the three-day drain active feature is automatically activated long enough to drain all water from the steam cylinder. This NORTEC feature will prolong the life of the cylinder. (User selectable, default is ON.)

10-20

Page 33 2008-08-28