Nortec Comprehensive Guide to Humidifier Distributor Installation and Maintenance

Figure #5

Remote Mounted Blower Packs (RMBP)

		Wall
		Side
Front
		A
Condensate	Power and control
	wiring from humidifier
Steam
	005-030	050-100
A	3.2" (8.0cm)	3.2" (8.0cm)

safety thermostat to turn off the humidifier if the blower pack gets overheated. Control thermostat, mounted on the steam distributor, starts the fan when steam is generated. When supply voltage differs from voltage required to run blower motor, blower pack will contain a proper transformer. All blower packs provide intake air filters.

For installation details about the blower pack, please refer to the blower pack installation manual located in the blower pack box (Form #XX-239).

STEAM DISTRIBUTORS

1.	Steam distributors are used in ducts or air
	handling units, and are made of stainless steel.
2.	Steam distributors can be in vertical or downflow
	applications.
3.	Proper location should consider: air temperature,
	relative humidity before the distributor, air velocity,
	dimensions of the location, amount of steam
	introduced into the duct, downstream obstructions,

WATER SUPPLY LINE

1.Humidifier is intended to operate on potable (cold) tap water.

2.If the raw water is very hard, NORTEC can provide longer cylinder life on softened water. However, softened water is more conductive and more corrosive. Some hardware and/or software changes may be required, at time of order or in the field. Consult factory.

3.If RO or DI is available, blending may increase cylinder life. Consult factory.

4.DO NOT use a hot water supply to humidifier. Minerals will adhere more easily to surfaces and the fill valve’s small flow regulating orifice and could become plugged.

5.Standard fill valves are sized for water pressure ranging from 30 to 80 psig (ideally 55 to 60 psig). For other pressures, consult factory. This pressure should be measured at the humidifier if the water pressure is suspect.

6.ALWAYS supply and install a shut off valve in the water supply line dedicated to the humidifier to facilitate servicing. Use ½" OD copper to within 4 feet of the humidifier. Reduce copper to 3/8" OD and connect to the factory-supplied 3/8" olive compression fitting under the humidifier.

DRAIN LINE

1.Humidifier is equipped with a 7/8" O.D. unthreaded drain outlet on underside of drain canal on bottom of the humidifier (see Figure #6). A field-supplied funnel (see Figure #7) is recommended. It will prevent backup in the drain pan and in the cylinder due to partially blocked or badly installed drain lines. This prevents rusting of the drain pan and arcing due to over-concentration. The drain canal

Figure #6

Drain Line Connection

	and surfaces vulnerable.
4.	For installation details, please refer to steam
	distributor installation manual located in the
	distributor box (Form #XX-231).
5.	For calculating absorption distances, refer to
	H.E.L.P. Software or steam distribution and
	absorption distances engineering manul (Form
	#XX-232).

PLUMBING

All water supply and drain line connections should be installed in accordance with local plumbing codes.

B

A

Bottom View

Wall

	Model	Ain.(mm)	B in.(mm)
005 - 030		1.0 (25)	5.0 (127)
050 - 100		2.2 (55)	6.2 (158)
	150 - 200 Left	2.2 (55)	6.2 (158)
150 - 200 Right		2.2 (55)	19.6 (498)

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