Nortec Industries None manual Receiving Equipment, Principal of Operation

INSTALLATION

RECEIVING EQUIPMENT

1.Check packing slip to ensure ALL material has been received.

2.Inspect box for damage and note on shipping waybill accordingly.

3.After unpacking, inspect unit for damage and if damage is found, advise shipper as soon as possible.

4.Inspect unit (humidifier) to ensure it is the correct model, phase, and voltage. If any are incorrect, advise the factory or your local representative immediately.

NOTE: All products are shipped on an F.O.B. factory basis. Any and all damage, loss, or breakage claims are to be made directly to the shipping company.

The NORTEC MES-U/MES-P electrode humidifier is the culmination of many years of research and development in the electrode humidifier industry. This unit has been built by skilled craftspeople and thoroughly tested before shipment and should, if the following instructions are observed, provide many years of trouble-free operation.

FOR HUMIDIFIERS INSTALLED IN THE CITY OF LOS ANGELES: A city of Los Angeles approved spring-loaded double ball CHECK VALVE should be supplied and installed by the contractor on each of the potable water inlets to each humidifier.

Recommended valve manufacturer: Watts Regulator (phone 508-688-1811), model #7, size 3/8” NPT inlet and outlet.

Each drain line from these humidifiers shall be routed, without dips or sags, to terminate above the flood level rim of a City of Los Angeles approved indirect waste receptor.

No combustible materials shall be placed in the duct and/or the air plenum.

PRINCIPAL OF OPERATION

When the humidistat calls, the cylinder fills to 100% of the Full Load Amperage (F.L.A.) or to the top of the cylinder, whichever comes first. See Figure #1.

If it reaches 100% F.L.A. the water heats and boils away to a level giving 80% F.L.A.

Figure #1

Op re- ati- on Sc eh- m

CONDENSATE RETURN
		(OPTIONAL)
FILL			STEAM HOSE
CUP
			1” AIR
1	2	3	GAP
			ELECTRODES

1. INLET CHAMBER

2. FILL CHAMBER

3.WATER OVERFLOW CHAMBER (SAFETY DRAIN IN CASE OF FILL VALVE/

CONTROL BOARD FAILURE) CYLINDER

STRAINER	FILL
TAP	VALVE
	DRAIN
WATER
	VALVE
SUPPLY
	DRAIN
	PAN
	DRAIN
	CONNECTION
	DRAIN CANAL
	(OPEN TO ATMOSPHERE)

An electronic timer uses the rate of amp fall to determine the water level. The objective is to concentrate current-carrying minerals in the cylinder so that a smaller volume of water is required to produce the rated steam output.

This achieves the longest life for the disposable cylinder because of minimal electrode coverage and use of less energy because the high concentration allows a minimal drain rate.

When 80% F.L.A. is reached, the fill valve will open refilling cylinder to 100% F.L.A. On occasion, the drain valve will also come on if water level is too low, indicating too high a concentration and the requirement for a dilution of the water in the cylinder.

If the water reaches top of cylinder before 100% F.L.A., the fill valve shuts off via the sensor and fill-boil-fill-boil cycle continues, cycling off the red high water sensor light until the concentration becomes high enough to reach 100% F.L.A. The above described control process will then take over.

- 1 -