Nortec GS User Manual

GS
Series

Gas Steam
Humidifiers

Designed for air handling

systems and for areas

requiring individual

humidification control

™

commercial offices
schools and universities
museums
printing
laboratories
libraries
manufacturing plants

NORTEC GS Series – the next
generation of gas steam humidifiers.

AxAir NORTEC specializes in the design and production

of superior humidification systems. It’s all we do!

Our future depends on our ability to understand the

needs of all our customers. We create the most

appropriate solutions to their specific needs in the

most efficient way. To this end, we draw upon our

extensive experience to develop an ever-growing

range of products that will provide our customers with

maximum reliability, minimum maintenance and a

choice of energy sources.

The NORTEC GS Series product line is no exception.

Every unit has a built-in modular stainless steel heat

exchanger – its flat surfaces ensure easy cleaning

and its proven design ensures reliable operation in all

water conditions. The control system is powered by

a 120V or 208-240V single phase electrical supply.

Each humidifier is built to operate with a normal

potable cold water source, RO (reverse osmosis), or

DI (De-mineralized) water as a standard. GS Series

products are manufactured in Nortec’s ISO 9001-2001

registered facility. Your AxAir NORTEC representative

can provide details.

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Economy

$/year

Operating costs based an electric cost of $0.08 per kWh, natural gas cost
$0.75 per therm, full output for 2,000 hours per season. Efficiency of
electric unit is 97% and efficiency of gas unit is 82%. Costs do not include
electric peak demand charges.

Annual

savings

with gas

$

3,658

0

1000

2000

3000

4000

5000

6000

Electric

$

5,443

Gas

$

1,784

Annual Operating Cost of

Natural Gas Humidifier vs Electric Humidifier

100 lbs/hr (45 kg/hr)

NORTEC GS Series Gas Steam humidifiers
provide clean steam humidification at an
economical operating cost. Units are packaged
in a powder coated cabinet for zero clearance
space requirement while offering high efficiency
output. They can be controlled from either a local
humidistat, from the central building management
system or multiple units can be staged together.

The combustion system utilizes a modulating
forced draft combustion air blower, a negative
pressure regulator gas valve and a 100% premix
burner. On a call for humidity, the combustion
air blower starts creating a negative pressure
across the valve orifice located at the air inlet.
The hot surface ignitor then energizes. The gas
valve opens and the regulated gas/air mixture is
forced through the burner ports and is ignited.

operating advantages

Easy Maintenance

The compact stainless steel heat exchanger has
large flat surfaces to minimize scale buildup
in the humidifier tank. Scale tends to fall off
the exchanger wall to the bottom of the tank,
maintaining efficient heat transfer to the water and
extending the intervals between cleanings. The
smooth stainless steel surface of the tank and
removeable heat exchanger are easily cleaned and
maintained.

The GS SERIES compact heat exchanger design
provides a minimum footprint area where space
requirement is an issue.

Compact removeable heat exchanger.
105 lbs/hr of clean steam.

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