DriSteem Vapor-Logic Installationsanleitung PDF herunterladen (Seite 48)

TROUBLE-SHOOTING GUIDE

PROBLEM POSSIBLE CAUSE RECOMMENDED ACTION

HUNTING (con't.) Malfunctioning control system

(con't.)

Verify that 4 wire modular cable is isolated from power

wiring.

Air volume varying rapidly Stabilize.

Air temperature varying rapidly Stabilize ±1°C.

UNIT DOES NOT

PERFORM

AUTO-DRAIN

SEQUENCE

System may not have automatic

drain system

Inspect unit to verify that automatic drain valve was

furnished.

Drain fault, plugged drain valve

or plugged drain pipe

Clean drain valve piping.

Malfunctioning auto drain

sequence

Check VAPOR-LOGIC main menu settings and reset if

necessary.

No power to automatic drain

valve

Check if 24 VAC is present at VAPOR-LOGIC control

board terminals 18 & 19, and drain valve.

Defective automatic drain valve Valve should be replaced if voltage is present at valve

and it still does not open.

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DriSteem Vapor-Logic Installationsanleitung Seite 48