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.
2
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.
3
technology
The new generation of GS Series Gas Steam humidifiers gives you more than economical operation. It’s the most versatile
gas humidifier available in the industry. When natural gas or propane is your preferred energy choice, the new GS Series gives
you the options!!! This new humidifier employs a state of the art controller giving networking capability to your engineer and
superior interconnection capabilities. It provides venting and steam distribution flexibility to contractor allowing fast and easy
installation in retrofit or new applications. The integrated troubleshooting guide, smart drain water tempering and pre-cleaning
sequence ensures fast servicing and efficient operation in all conditions.
Low emission gas appliance
▶
Capacity up to 630 lbs/hr with a single unit
▶
Nortec Total Controller
▶
Modbus host protocol
•
Easy to use scroll down menus
•
Stagged modulation of up to 10 units
•
Advanced scale management system with
▶
pre-cleaning sequence
Heavy-duty drain pump for scale removal
▶
Full modulation to 25 lbs/hr (11 kg/hr)
▶
for all capacities
GSTC 100
GS
Series
Gas Steam
Humidifiers
Produces clean, uncontaminated steam
▶
Multiple venting options for easy installation
▶
All components suitable for RO/DI water
▶
Compact flat surface heat exchanger
▶
Internal water tempering for drain water cooling
▶
360º gas burner technology
▶
All service connection outside the cabinet ready
▶
for field connection
Fully insulated tank for efficient operation
▶
™
GS OUTDOOR
ENCLOSURE
4
GSTC
The GSTC has a built-in microcomputer with a full size
display that provides instantaneous updating of all
operating parameters. The unit accepts a modulation
control signal from a BAS var ying its output to
meet capacity demand. Models feature a capacity
adjustment of output down to 25 lbs/hr.
The GSP uses status lamps on the front to provide
operating diagnostics. The GSP model can accept a
modulating control signal from building management
systems.
GSP
Features Comparison
Steam Capacity adjustment
Full size alphanumeric display and keypad
Total Controller with Modbus host protocol
Transducer signal acceptance
Individual component diagnostic capability
Keypad set-point adjustment(humidity)
Display of relative humidity
Low and high relative humidity alarms
Adjustable drain with no call for humidity
Keep warm feature
Networking capability up to 10 units
Pre-cleaning sequence
Troubleshooting Guide
Self diagnostic capabilities
Fault history
Smart drain water cooling
On/off cycling prevention
Full tank blowdown capability via timer or external trigger
Board mounted display for fault and demand indication
Parameter change through jumper settings
Remote fault indication
Single or Dual modulation signal acceptance
Industry standard modulation signal acceptance
Time to next maintenance alarm
Internal Drain water cooler
System demand indication
Output display
Precise five level water level indication
Status indicator lamps
Backlit display
B or BH venting options
BH stack vent (outdoor only)
Large Side tank cleaning port
Top access cleaning (300, 400, 500 & 600 lb models)
Single water connections
Turn-down ratio from maximum output to 25lbs/hr(11kg/hr)
Time proportioning below 25lbs/hr(11kg/hr)
120V or 208-240V power supply
Freeze protection
Integral enclosure (outdoor only)
Nortec Links Building Management System capable using BACnet
or LonWorks N2 protocols
Nortec OnLine for web based monitoring and control
Sealed combustion / Direct vent
Floor stand
Distribution Systems
Short Absorption Manifold SAM-e
Steam distributor
Blower pack
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
• •
not req.
keypad
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
•
• •
• •
• •
• •
• •
• •
• •
•
º º
º
º º
º º
º º
º º
º º
GSTC
GSP
•
•
•
= standard
= optional
º
5
options
Steam Distributor
Systems
Nortec offers flexible steam distribution choices
to satisfy a wide range of requirements:
Stainless Steel Steam Distributors to
•
distribute atmospheric steam into ducts.
Independant Blower Packs for in space
•
applications (remote mounted).
SAM-e Short Absorption Manifold for use
•
in air handlers or ducts where short steam
absorption distance is critical.
Atmospheric steam distributor
Blower pack
SAM-e Short Absorption Manifold
NORTEC LINKS
NORTEC Links offers monitoring and control
allowing humidifier(s) to communicate to your
Building Management System (BMS). The
controller is factory installed and is located
internally to the humidifier. Simply specify at
time of order what operating protocol you are
using – BACnet IP, BACnet MSTP, LonWorks or
Jonhson N2.
NORTEC OnLine
NORTEC OnLine is a remote interactive
communication package that allows satellite
contacts to monitor, maintain and control
a humidification center from any location
worldwide using standard internet connections.
This advanced software shows graphic
representations of the humidifier and its key
parameters (up to 75 functions).
Customer
www.nortecOnLine.com
Communication through the internet or email.
NORTEC Humidifier
NORTEC Technical Services
6
technical data
SPECIFICATION GS 100 GS 200 GS 300 GS 400 GS 500 GS 600
Capacity: lbs/hr
Capacity: kg/hr
Input BTU/hr max
Input kJ/hr max
Flue Emissions Low CO (<10ppm) and NOx (<40ppm)
Unit rated Amps
Voltage/Phase
Unit rated Amps
Voltage/Phase
25-105 25-210 25-315 25-420 25-525 25-630
11-47 11-95 11-143 11-191 11-238 11-286
140,000 280,000 420,000 560,000 700,000 840,000
41 82 124 165 206 247
4 6 8 10 12 14
120V/1 120V/1 120V/1 120V/1 120V/1 120V/1
2 3 4 5 6 7
208-240/1 208-240/1 208-240/1 208-240/1 208-240/1 208-240/1
INSTALLATION FEATURES & REQUIREMENTS
Single point cabinet door fastening for easy removal.
Choice of venting comes standard allowing greater installation flexibility,
B or BH venting.
Cabinet and insulation allows mounting to combustible surfaces for
minimum space requirement.
Exclusive full size cleanout port for fast and easy servicing.
Floor stand optional for GS indoor units.
All service connections exterior to the humidifier ready for field
connections.
120, 208-240V single phase power supply.
Steam outlet configuration ready for duct distributor, remote mounted
blower pack or Short absorption manifold connection.
7
U.S.A.
Certificate No. 002419
AxAir Nortec Inc.
826 Proctor Avenue
Ogdensburg, NY 13669
CANADA
AxAir Nortec Ltd.
2740 Fenton Road
Ottawa, Ontario K1T 3T7
TEL: 1.866.NORTEC1
FAX: 613.822.7964
EMAIL: nortec@humidity.com
WEBSITE: www.humidity.com
www.norteconline.com
www.nortecparts.com
U.S. Patent 5,816,496
Canadian Patent 2,203,332
Form 07-289
electric steam — atomizing nozzles — high pressure nozzles — steam injection — steam exchange — gas steam
Printed in Canada Printed on Recycled Paper
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