This feature will reduce the possibility of corrosion of the electrodes and the possible accumulation of algae and bacteria growing in the cylinder.
BUILT ON AND REMOTE MOUNTED BLOWER PACKS (BOBP’s / RMBP’s)
FAN MOTOR OILING: The blower pack fan motor requires occasional oiling of motor bearings. To do this, open up the blower pack top and oil the motor with ten drops of
TROUBLESHOOTING
PLEASE READ THIS SECTION BEFORE REFERENCING SPECIFIC DIAGNOSTIC MESSAGES.
1.Ensure the installation detail conforms with the recommendations contained in the Installation Manual, Form
2.Understanding the Principle of Operation is an asset when troubleshooting. This information is readily available from your local representative.
3.When contacting your local representative or NORTEC, for troubleshooting assistance, please ensure the serial number has been obtained for reference purposes.
4.Whenever the troubleshooting steps indicate a problem with the main
STARTING POINT
If nothing is working, check for 24 VAC output from the stepdown transformer (see wiring diagram). If there is no 24 VAC output, the transformer might have been damaged if external controls were installed and/or connected with the
The conductivity of the water within the cylinder must be controlled, in order for the humidifier to function properly. The fill and drain rates must be maintained. Filling too quickly can cause
malfunction due to foaming. These are just some examples of what can go wrong if the fill and drain rates are not maintained.
Fill rates of suspect units should be checked. Open the disconnect to cut off all power in the humidifier before reaching inside. One of the 24VAC wires to each primary voltage contactor holding coil (some models have two contactors per cylinder) should be temporarily disconnected for this test. This way, no boiling occurs during the test so as not to detract from the fill rate. Fill rates should measure nominally at 1" to
If filling too quickly, check for excessively high supply water pressure (over 80 psig). If water pressure is correct, verify fill valve body orifice (consult factory). If filling too slowly, look to probable causes described under Error 3 later in this manual. Check rate with steam line disconnected.
Manual drain rates of suspect units should be checked using Figure #18 as reference times.
| Figure #18 |
| Manual Drain Times |
|
|
CYL. SIZE | PROPER TIME (sec) TO DRAIN MANUALLY |
(SERIES) | FROM SEAM TO EMPTY |
| |
| BEIGE BODY DRAIN VALVE |
|
|
500/600 | 2 minutes and 52 seconds ± 10 sec. |
|
|
400 | 1 minute and 20 seconds ± 5 sec. |
|
|
300 | 43 seconds ± 2 sec. |
|
|
200 | 25 seconds ± 1 sec. |
|
|
If time measurements are longer, repeat with external drain disconnected (and draining into a pail) to know if external drain is impeding flow.
Clogged strainer and/or clogged drain valve will cause shortened cylinder life. But start by determining what caused the strainer and/or drain valve to clog in the first place.
Do not assume that if strainer and/or drain valve are clogged that they are to blame. If the external drain has been impeding flow, then waste accumulates, resulting in a clogged strainer and/or clogged drain which, in turn, results in shortened cylinder life.
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