Nortec Industries GS Series GSTC Indoor User's Manual
Contents
1. Figure 4 GSTC GSP Indoor Clearance in cm n cm in cm in cm er 100 Outdoor 762 o o o 1016 914 er 200 Outdoor 30 762 o o o tote 3 91 4 eer 300 Outdoor 30 762 782 40 1018 se 914 erg 400 Outdoor 762 782 40 1016 914 este soo Outdoor 762 so 762 o 1016 se oral este eoo outdoor 762 762 40 1016 914 RN RAR Figure 5 GSTC Outdoor Clearance 10 10 Page 14 2008 10 01 A 6 www humidity com 6 STEAM INSTALLATION GUIDELINES 1 The GS Series humidifier comes with a single steam outlet on all capacities The GS 100 200 300 400 500 600 have respectively 1 75 4 4 cm O D 3 7 6 cm O D and 4 10 16 O D Consult option and accessories section for more details Refer to the Steam Absorption and Distribution Manual Form XX 231 for design of the steam distribution system 7 CALCULATION OF ANNUAL OPERATING COSTS A Natural Gas Humidifier 1 Annual operating cost equals annual hours of operation times energy cost times humidifier capacity a Example GS 100 b Natural gas cost 4 50 U S per million BTU c 0 45 U S per Therm 100 000 BTU Annual hours of operation 2000 at full output Equivalent to comfort humidification in upper mid west d Input of humidifier 140 000 BTU hr e Total energy used 2000 x 140 000 280 000 000 BTU f Annual Cost 238 x 4 52. cae 36 WARRANTY 2008 10 01 LIST OF FIGURES Figure 10 00 PRINCIPLE OF OPERATION Figure 1 GS Indoor Series RR RR Figure 2 GS Outdoor Series Figure 3 GSTC Figure 4 GSP Key Pad made 10 10 OPERATION Figure 1 Humidifier Figure 2 Physical Dimensions GS Indoor Figure 3 Physical Dimensions GS Outdoor Figure 4 GSTC GSP Indoor Clearance Figure 5 GSTC Outdoor Clearance 22222 10 30 OPTIONS amp ACCESSORIES Figure 1 NORTEG LINKS ux 8 gor Figure 2 NORTEC Figure 3 Steam Distributor Figure 4 Blower Pack Figure 5 Short Absorption Manifold A Nortec www humidity com Page 2008 10 01 Nortec www humidity com LIST OF TABLES Table Page 10 00 PRINCIPLE OF OPERATION Table 1 Technical Data s Ram E exe bees deen RR NET KR 2 Table 2 Standard Features 5 2008 10 01 A Nortec www humidity com THIS PAGE INTENTIONALLY LEFT BLANK 2008 10 01 6 10 00 PRINCIPLE OF OPERATION 10 00 Page 1 A Nortec www humidity com 1 PRINCIPLE OF OPERATION A Combustion System
3. a Od eur esed E EE 13 6 STEAM INSTALLATION GUIDELINES en 15 7 CALCULATION OF ANNUAL OPERATING COSTS 15 A NATURAL GAS HUMIDIFIER 0 0 0 0 00 cc nern 15 B ELECTRIC GAS HUMIDIFIER 15 G OPERATING COST SAVINGS ern x a Ea oes 15 10 20 MAINTENANCE 1 WATER CONDITIONS VS HUMIDIFIER CLEANING REQUIREMENTS 18 2 PREVENTIVE MAINTENANCE 19 3 PRE CLEANING SEQUENCE 19 10 30 OPTIONS amp ACCESSORIES 1 OPTIONS AND ACCESSORIES AVAILABLE 22 A NORTEC MODULATING HUMIDISTAT WITH DIGITAL DISPLAY 22 B HUMIDISTAT WITH INTEGRAL SENSOR AND CONTROLLER WITH DIGITAL DISPLAY 22 C HUMIDISTAT WITH INTEGRAL 22 D NORTEC ON OFF CONTROLS WITH DIGITAL DISPLAY 23 E CONFIGURATION 23 F DIRECT VENTE 2 2 2 23 SAND EN 23 H EEE teren an seb eet Ee NEE ta ee 23 l INDOOR FREEZE 24 J OUTDOOR FREEZE PRO
4. A Nortec www humidity com THIS PAGE INTENTIONALLY LEFT BLANK 10 40 Page 37 2008 10 01 Y Nortec www humidity com WARRANTY WALTER MEIER INC and or WALTER MEIER LTD hereinafter collectively referred to as THE COMPANY warrant for a period of two years after installation or 30 months from manufacturer s ship date whichever date is earlier that THE COMPANY s manufactured and assembled products not otherwise expressly warranted with the exception of the cylinder are free from defects in material and workmanship No warranty is made against corrosion deterioration or suitability of substituted materials used as a result of compliance with government regulations THE COMPANY s obligations and liabilities under this warranty are limited to furnishing replacement parts to the customer F O B THE COMPANY s factory providing the defective part s is returned freight prepaid by the customer Parts used for repairs are warranted for the balance of the term of the warranty on the original humidifier or 90 days whichever is longer The warranties set forth herein are in lieu of all other warranties expressed or implied by law No liability whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then said liability shall be limited to the original purchase price for the product Any further warranty must be in writing signed by an officer of THE COMPANY THE COMPANY s limited warrant
5. Gas Connection Model A Shipped Operating Steam Outlet Gas Supply Weight Weight pin in ins bs kg in om 5 Zs GSTC 400 outdoor 435 111 24 9 63 2 745 339 1210 550 1x4 1x 12 1 src 500 Outdoor 59 1 150 25 5 64 7 800 ses 1505 684 1x4 1x 102 125 150 Figure 3 Physical Dimensions GS Outdoor Humidifier 10 10 Page 10 2008 10 01 A Nortec www humidity com B Safety Water Level Control Check 1 To ensure safe operation the humidifier constantly monitors the back up float of the humidifier and also performs float checks at regular intervals C Self Diagnostic 1 This feature allows the user to activate various hardware elements within the system to prove operational compliance D Energy Efficient Blowdown Sequence Unique to Nortec 1 Fill valve and blow down sequences are based on steam production and not time of operation to increase efficiency of the unit If the demand signal controls the unit at the minimum output of 25 Ibs hr only 25 of 25 Ibs hr will be drained E Internal Drain Water Tempering 1 The unique design for the internal Drain Water Cooler from NORTEC will ensure water tempering at all times of the water going to drain The fresh fill water will completely mix with incoming hot water from the tank during blow down or drain cycles and ensure water does not exit the system at more then 140 F 60 C 2
6. Nortec GS Series GSTC GSP Indoor GSTC Outdoor Engineering Manual 1503540 C A Nortec www humidity com PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of WALTER MEIER LTD Neither this document nor the information contained herein shall be reproduced used or disclosed to others without the written authorization of WALTER MEIER LTD except to the extent required for installation or maintenance of recipient s equipment All references to the NORTEC name should be taken as referring to WALTER MEIER LTD ISO 9001 2000 REGISTERED Certificate No 002419 LIABILITY NOTICE NORTEC does not accept any liability for installations of humidity equipment installed by unqualified personnel or the use of parts components equipment that are not authorized or approved by NORTEC COPYRIGHT NOTICE Copyright 2008 WALTER MEIER LTD All rights reserved RECORD OF REVISIONS For each revision put the revised pages in your manual and discard the superseded pages Write the revision number and revision date date put in manual and the incorporator s initials in the applicable columns on the Record of Revisions Revision Revision Date Put Revision Revision Date Put Number Date In Manual By Number Date In Manual By 2008 10 01 A Nortec www humidity com TABLE OF CONTENTS Subject Page 10 00 PRINCIPLE OF OPERATION 1 PR
7. Examination 1 2 3 Examine ducts air handling units and conditions for compliance with requirements for installation tolerances and other conditions affecting performance Examine roughing in for piping systems to verify actual locations of piping connections before humidifier installation Proceed with installation only after unsatisfactory conditions have been corrected B Installation 1 2 3 Install humidifiers and steam dispersion panels per manufacturers instructions Seal humidifier dispersion tube duct penetrations with flange Install with required clearance for service and maintenance C Testing 1 10 40 Page 35 2008 10 01 System verification testing is part of the commissioning process Verification testing shall be performed by the Contractor and witnessed and documented by the Commissioning Authority Refer to section 01810 Commissioning for system verification tests and commissioning requirements XXXXX OR XXXXX Manufacturer s Field Service Engage a factory authorized service representative to inspect field assembled components and equipment installation including piping and electrical connections Report results in writing a Leak Test After installation charge system and test for leaks Repair leaks and retest until no leaks exist b Operational Test After electrical circuitry has been energized start units to confirm proper unit operation Remove malfunctioning un
8. GS Outdoor Series 10 00 Page 3 2008 10 01 Steam SR Outlet S Nortec www humidity com Figure 3 GSTC Key Pad Figure 4 GSP Key Pad 10 00 Page 4 2008 10 01 A Nortec www humidity com Table 2 Standard Features Standard Features GSTC GSP Steam Capacity adjustment Full size alohanumeric display and keypad Total Controller with Modbus host protocol Transducer signal acceptance Individual component diagnostic capability Keypad set point adjustment humidity Display of relative humidit 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 x Board mounted display for fault and demand indication not req Parameter change through jumper settings keypad Remote fault indication x 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 amp 600 Ib models Single wa
9. Modulating 0 10 VDC duct mounted humidistat P control humidistat with setpoint range of 10 95 RH Connects directly to the GSTC or GSP low voltage terminal strip via 2 wires shielded if run exceeds 10 m and accurately controls RH in a zone or space Can be used as a control humidistat if placed in return air or as high limit if placed in supply Time proportioning control not acceptable C Humidistat with Integral Sensor 1 2 3 150 9857 Remote duct or modulating high limit sensor 150 9858 Remote wall mounted sensor 252 0263 Outdoor duct mounted temperature sensor Can provide energy savings and prevent window condensation by reading outdoor temperature and resets the humidity control to prevent condensation 10 30 Page 22 2008 10 01 A Nortec www humidity com D Nortec On Off Controls with Digital Display 1 2 252 0273 Duct Mounted Safety High Limit On Off Humidistat if used is wired to make on drop in humidity break on rise to safety setpoint It should be set to approximately 85 RH as a safety to prevent saturation and wetting in the duct 132 9203 A Duct Mounted Safety Air Proving On Off Switch if used is wired to make on airflow break on no flow It is used as a safety to prevent saturation when no air is flowing through the duct Low Humidity Alarm Package Low limit on off humidistat duct or wall mounted alarm light with engraved faceplate sized to fit standard 2 x 3
10. When the SMART feature is enabled on the TC version the temperature of the tank is monitored and fresh cold water will be used only when drain water is above 140 F 60 C F Capacity Turn Down 1 The GS humidifier is capable of full modulation of the output of each burner down to 25 Ibs hr For example on a four burner system such as the GS 400 the turndown ratio is 6 of total output 2 When the control signal requires less than 25 Ibs hr output the internal controller of the unit takes over with a unique time proportioning algorithm and to control the output and modulate down to 0 Ibs hr G GSTC Unit Networking 1 The new TC controller of the GS Series allows staged modulation through networking of up to 10 units when higher capacities of steam require multiple units The modulating signal will be wired to the master unit and this one will control the output of the other units for seamless modulation from 25 Ibs hr up to 6300 Ibs hr All units will be configured as master or staged The operational range of each unit will be set in the internal controller at the factory A control modulation signal to the master unit and a three wire connection between each unit being staged is all that is required 2 CONTROLS A Introduction 1 The GSTC model features a backlit alphanumeric keypad for user interface which allows for adjustment of operating parameters and displays system operating status 2 The GSP model uses
11. c d e Unit output Ibs hr or kg hr 25 Ibs hr to full output Water level in the tank Modulating control demand status On off control and safety High limit air proving circuit status Actual room and or duct RH and humidity set point when using transducer input s Controller configuration Proportional band and integral when using transducer input s Troubleshooting guide with scroll down menu Fault indication including date and time history Maintenance intervals Fill and drain status Drain flush intervals and duration Date and time Capacity limitation 72 hours drain enable disable Control type configuration on off or full modulation when demand signal s or transducer input s are provided Up to 10 humidifiers supplying one AHU or area can be controlled in series from one modulating humidity control system BACnet LonWorks or Johnson N2 capable to interface for monitoring and control from a Building Management System BMS BAS Total Controller is Modbus native for BMS BAS communication for remote monitoring and control of humidifier Web base capable via the Internet for remote monitoring or control of humidifier NOTE All operational parameters factory set to reduce field set up time 8 Standard of acceptance NORTEC GSTC 9 Optional accessories a Refer to options schedule 10 40 Page 34 2008 10 01 A Nortec www humidity com 3 EXAMINATION A
12. recessed electrical wall box supplied by others Activates alarm light if duct or room airdrops below setpoint a Duct 253 3365 b Wall 253 3366 High Humidity Alarm Package High limit on off humidistat duct or wall mounted alarm light with engraved faceplate sized to fit standard 2 x 3 recessed electrical wall box supplied by others Stops humidifier and activates alarm light if duct or room air approaches saturation a Duct 253 3363 b Wall 253 3364 E Configuration Option 1 150 7057 This option allows the Gas Steam humidifier to operate using propane energy F Direct Vent 1 GS Indoor Direct Vent Package allows GS unit to be installed in an environment where the air cannot be used for combustion for one of the following reasons chemicals or excessive dust is present in the air or the room is under excessive negative or positive pressure All these factors could affect adversely the normal operation of the unit a GS 100 150 7067 b GS 200 150 7068 c GS 300 150 7069 d GS 400 150 7070 e GS 500 150 7071 f GS 600 150 7072 GS Series Stands are optional with all models The floor stands will help raise the unit to maximum of 27 69 cm high H Keep Warm 1 10 30 Page 23 2008 10 01 150 7059 GSP Keep Warm Feature allow water temperature in the tank to be maintained between 140 F 60 C and 160 F 71 C allows for quick response of the unit on a
13. 0 1260 00 B Electric Gas Humidifier 1 Annual operating cost equals annual hours of operation times energy cost times humidifier capacity a Example NHMC 100 b Electricity cost usage charge 0 08 per kw hr c Annual hours of operation 2000 at full output Equivalent to comfort humidification in mid west d Input of humidifier 34 kw e Total energy used 2000 x 34 68 000 kw hr f Annual Cost 68 000 x 0 08 5 440 00 C Operating Cost Savings 1 Gas vs Electric more than 4 times the operating cost 10 10 Page 15 2008 10 01 A Nortec www humidity com THIS PAGE INTENTIONALLY LEFT BLANK 10 10 Page 16 2008 10 01 Nortec www numidity com 10 20 MAINTENANCE 10 20 Page 17 A Nortec www humidity com 1 WATER CONDITIONS VS HUMIDIFIER CLEANING REQUIREMENTS 1 The GS Series humidifiers are to operate on cold potable De lonized DI or Reverse Osmosis RO water supply and since the output of all GS Series humidifiers is pure clean steam minerals from the incoming water are left behind These minerals will eventually coat the tank walls or settle to the bottom of the tank The mineral content of the incoming water the unit running time output Capacity setting and blowdown rate ultimately determine time between each cleaning The Gas Steam humidifier will periodically blowdown or skim water from the tank to reduce the concentration of total dissolved solids that accumu
14. 1 The combustion system is based on a fully modulating forced draft combustion air blower a negative pressure regulated gas valve and a 100 premix burner Ona call for humidity the combustion air blower starts and creates a negative pressure across an orifice located at the air inlet 2 The blower is energized to purge the system then the hot surface igniter is activated During this time the electronic ignition module does a diagnostic check of safety systems including the air proving switch which senses the negative pressure at the air inlet orifice After the function of the safety systems has been verified the gas valve will open and the gas air mixture is ignited by the hot surface igniter 3 If a flame is sensed by the flame sensor the gas valve remains open and combustion continues If a flame is not sensed the above sequence is repeated to a maximum of three times after which the ignition module will lock out The gas valve maintains a constant ratio air to gas independent of blower speed or external conditions This air and fuel is thoroughly mixed in the blower and then forced through the burner ports where ignition occurs Hot products of combustion are forced through a baffle inside the heat exchanger and then vented outside The heat exchanger has a large flat surface to minimize scale build up and promote scale shedding to the bottom of the tank This self cleaning action helps to maintain the efficiency of the heat exchang
15. INGIPLE OF OPERATION eene ode a a tt aed 2 A COMBUSTION SYSTEM 2 10 10 OPERATION 1 WATER MANAGEMENT BETTER EFFICIENCY 8 A INTRODUCTION a a ai nde Ne eer e geet 8 B SAFETY WATER LEVEL CONTROL CHECK 11 C SELF DIAGNOSTIG 2 a 1 D ENERGY EFFICIENT BLOWDOWN SEQUENCE 11 E INTERNAL DRAIN WATER TEMPERING 11 F CAPACITY TURN RR RR RR RR rre 11 G GSTC UNIT NEWTWORKING o 11 2 CONTROLS are EE da 11 A INTRODUCTION G cratita eai atent aaa a a e a ae aa R Da nE EEEN 11 B REMOTE FAULT INDICATION an lene eer RR RR RR 12 C MODULATING CONTROLS a E EE TEE EN 12 0 ON OFF GONTROES 4 25 cb Pd PITE beset nae qr eM PPAR 12 3 Sti daa Sesame Sik LEE 12 4 VENTING aM tenen 12 5 GLEARANGES a
16. NALLY LEFT BLANK 10 20 Page 20 2008 10 01 6 10 30 OPTIONS amp ACCESSORIES 10 30 Page 21 A Nortec www humidity com 1 OPTIONS AND ACCESSORIES AVAILABLE A Nortec Modulating Humidistat with Digital Display 1 NORTEC humidistats for GSTC or GSP Gas Steam humidifiers feature proportional integral control with setpoint range of 10 95 RH The humidistat connects directly to the low voltage terminal strip via 3 wires shielded if run exceeds 10 m The humidistat accurately controls RH in a zone or space Humidistat Specifications a Operating Conditions 41 F 122 F 5 C 50 C b Control 0 95 RH non condensing c Sensor 0 100 RH d Humidity Sensor Solid state humidity sensor Suitable for normal clean air Not to be used in corrosive or harmful environment e Resolution 0 1 f Repeatability 0 5 g Accuracy of Sensor 3 RH from 0 100 RH Range 10 90 RH for 329 1229 0 C 50 C h Temperature Effect 0 05 F i Outputs 0 10 VDC j Power 24 VAC 15 10 50 60 Hz 2 VA B Humidistat with Integral Sensor and Controller with Digital Display 1 151 0142 Modulating 0 10 VDC wall mounted humidistat P control humidistat with setpoint range of 0 95 RH Connects directly to the GSTC or GSP low voltage terminal strip via 2 wires shielded if run exceeds 10 m and accurately controls RH in a zone or space Time proportioning control not acceptable 252 0266
17. TECTION 24 2008 10 01 6 www humidity com ena e as 24 LINKS Dios sch a ele 24 OUTDOOR 120 betes E PRG Dema EEROR EE Gee eves 26 DRAIN WATER SUMP ccc eee 26 STEAM DISTRIBUTION RR ee EEDE GG 26 REMOTE MOUNTED BLOWER 26 SHORT ABSORPTION MANIFOLD eeen 26 10 40 SPECIFICATION 1 GENERAL EE 30 A QUALITY ASSURANGE on uode ee Ti dade Dhak Rae 30 B SUBMITALS nd ohare Drees 30 C EXTRA MATERIALS I EE Goes woe Pee deu 31 D REFERENCES ae 200 0 00 2004 E EE EE ten age EM E COORDINATION zeg cit a ae EM 2 PRODUCTS pn 31 GAS FIRED STEAM HUMIDIFIER GI 31 3 EXAMINATION erre 1 35 A EXAMINATION e a bee ebbe abd by bs 35 B INSTALLATION BEER 35 C TESTING tee EE A ale etae bad ete besote tu ede litus 35 D TRAINING ernst Ee ER EROR ed EE EN Rees
18. ation The float chamber and board are located away from the boiling action to increase reading accuracy and reduce mineral build up since it is not in the boiling water 2 The float chamber is connected to the tank under the water level and above the water level to ensure equalization of pressure between the tank and float chamber In addition cooling water is introduced in the float chamber to reduce scale build up 3 The unit also includes an internal 1 air gap and a vacuum breaker to prevent siphoning effect 4 On initial start up the solenoid operated fill valve fills the tank The water level will reach the backup float first and then the main float As a safety precaution if the back up and main float read a different water level at any time during the operation of the unit the unit will shut down on a fault 5 On initial start up the unit will fill to the top yellow position and activate an internal test to confirm operation of the drain pump to ensure the drain is blocked 6 The drain pump is then activated until the water level goes down to the green middle level and the combustion sequence will start upon a demand for humidity During the steam production the unit will also self check if the floats and drain pump are operational by activating a drain sequence every 24 hours adjustable to time of day Fill Chamber Vacuum Break Main Fill to System Presure Equalizer Dual Fill Valve Drain Outlet Int
19. call for humidity and to reduce possible bacteria growth for health concerns J K A Nortec www humidity com Indoor Freeze Protection 1 150 7058 GSTC Indoor Freeze protection package provides the unit configured with keep warm feature remote fault indication and a normally open drain valve to protect if freezing conditions may occur The keep warm feature will ensure the water temperature is kept between 1402 60 C 160 F 71 C 2 The remote fault indication will allow service personnel to be advised of the unit s operational status and the normally open drain valve will ensure the unit is drained if a power outage 3 Drain and fill lines outside of the cabinet must be protected from freezing with heat trace Unit must be enclosed in a weather enclosure with heat source 4 A remote alarm must be installed in case the unit faults using remote fault indication and status indication Outdoor Freeze Protection Standard with all GS Outdoor Enclosures 1 Outdoor units are configured with the Keep Warm feature enabled to maintain the tank water temperature between 140 F 60 C and 160 F 71 C Included is a factory installed normally open drain valve that will ensure the unit drains in the event of a power outage Also a factory installed heater will be included to maintain an operating temperature range within the electrical compartment The heater is powered from the humidifier Field supplied heat tra
20. cing needs to be installed on all fill line piping exposed to outdoor temperature If fill line pipe freezing is a concern a field supplied normally open valve can be used to drain the fill line a 150 8116 GSTC Outdoor 100 b 150 8117 GSTC Outdoor 200 c 150 8118 GSTC Outdoor 300 400 d 150 8119 GSTC Outdoor 500 600 ON LINE 1 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 LINKS 2 1 Nortec LINKS 2 is the combination of LINKS building management system communication hardware and OnLine Internet communication hardware allowing humidifiers to communicate to a building management system BMS as well as the Internet Up to 8 humidifiers can be connected to 1 LINKS 2 controller 1 master and 7 slaves The controller is factory installed and is located internally to the humidifier Simply specify at the time of order the operating protocol needed LINKS 2 comes standard with Internet capabilities however OnLine service needs to be specified at time of order 2 Operating Protocols a 252 7116 BACnet IP 10 30 Page 24 2008 10 01 A Nortec www humidity com b 252 7111 BACnet MSTP c 252 7113 Johnson d 252 7113 LonW
21. emal Trap Drain Pump Aux Drain Float Chamber Figure 1 Humidifier Tank 10 10 Page 8 2008 10 01 A Nortec www humidity com 309 72 aomi 18 STEAM OUTLET OPTIONAL DIRECT VENT 7 93 2350901 CONTROL SIGNAL EN 14836 25 51 GAS INLET sr 47em 2a WATER NLET 118 920m RIGHT SDE CONTROL PANEL oran CONDENSATE OUTLET by AUK DRAN 53 1 17 180m T 10 5cm POWERSUPPLY Vent Dia Vent Dia Operating Steam Outlet B Type BH Type Weight in cm in cm Ibs kg 4 3 7 6 423 599 970 992 1364 1384 Figure 2 Physical Dimensions GS Indoor Humidifier 10 10 Page 9 2008 10 01 ay A Nortec www hu me ma me 258mm CLEARANCE ENVELOPE EH ANNA W RRA Y df ua L JUNCTION BOX NOT PROVIDED Cleanin B 7 CONTRACTOR TO INSTALL NEMA 9 Power and N RATED BOX PS 54 3 1380mm midity com Venting b ell CA Outlet
22. ent of combustion must be available for use with BH exhaust vent Gas appliance shall be low emission Units with Carbon Monoxide CO levels higher than 10 ppm and Nitrous Oxide NOx levels above 40 ppm are not acceptable a b c System shall be rated as a class I appliance certified for use with exhaust vent type B XXXXX OR XXXXX System shall be rated as a class appliance certified for use with exhaust vent type BH XXXXX OR XXXXX System shall be rated as a class III appliance certified for use with exhaust vent type BH and use with direct vent of combustion air Must be specified for factory configuration Stainless Steel combustion chamber s heat exchanger s shall have flat surfaces to retard scale build up Tubular heat exchangers are not acceptable a b Each burner capable of true modulation will provide steam production of 25 to 105 Ibs hr 11 to 48 kg hr Time proportioning modulation is not acceptable Units with multiple heat exchangers models 210 to 630 Ibs hr 95 kg hr to 286 kg hr must be capable of producing a minimum output of 22 11kg hr Units with multiple heat exchangers models 210 to 630 Ibs hr 95 kg hr to 286 kg hr must alternate the lead burners duty cycle to promote equal usage Gas system with gas valve s explosion proof premix combustion air blower s microprocessor controlled ignition flame sensing and fault indicator light s 100 premix infrared bur
23. er while the smooth surfaces allow for easy cleaning when necessary 5 The GS 100 has a single removable combustion chamber heat exchanger The combustion system is duplicated on larger units with multiple chambers inside a common tank Table 1 Technical Data UNIT TYPE SPECIFICATION GS 100 GS200 GS300 GS 400 GS 500 GS 600 Rated Capacity Ibs hr 25 105 25 210 25 315 25 420 25 525 25 630 Rated Capacity kg hr 11 48 11 95 11 143 11 191 11 238 11 286 Input BTU hr max 140 000 280 000 420 000 560 000 700 000 840 000 Input kJ hr max 41 82 124 165 206 247 Flue Emissions Low CO lt 10 ppm and Low NOx lt 40 ppm GSTC GSP Rated Amps 1 1 1 9 27 35 43 52 Voltage Phase 208 240 1 Standard GSTC Outdoor Rated Amps 3 2 4 0 6 9 7 7 10 6 11 5 Voltage Phase 208 240 1 Standard GSTC GSP Rated Amps 21 37 5 3 6 8 8 4 10 Voltage Phase 120 1 Standard GSTC Outdoor Rated Amps 6 3 7 4 13 7 15 2 21 0 22 6 Voltage Phase 120 1 Standard 10 00 Page 2 2008 10 01 A Nortec www humidity com Steam Outlets Echaust Vent Oubide Optional Drect Vent 85 Ready for Connection Connection Power and Centro Wiring in front Ses Fil weter Dron Figure 1 GS Indoor Series Exhaust Venting Provided by Nortec Sealed at Cleaning Port for for all Capacities Removable Doors Internal Pipe Chase GSTC 400 Shawn Figure 2
24. fied with labels describing contents E References 1 ANSI NFPA 70 National Electrical Code F Coordination 1 2 Coordinate location and installation of humidifiers in ducts and air handling units Revise locations and elevations to suit field conditions and to ensure proper humidifier operation XXXXX OR XXXXX Coordinate location and installation of humidifier in the space it serves with the electrical mechanical and plumbing contractors 2 PRODUCTS A Gas Fired Steam Humidifier GSTC 1 10 40 Page 31 2008 10 01 Packaged unit floor mounted gas fired steam generating system available at 105 Ibs hr 48 kg hr 210 Ibs hr 95 kg hr 315 Ibs hr 143 kg hr 420 Ibs hr 191 kg hr 525 Ibs hr 238 kg hr 630 Ibs hr 286 kg hr suitable for immediate or future use of all water types including De lonized DI Reverse Osmosis RO potable and softened water without modification required CSA certified Packaged unit wall mounted methods of distribution require a steam distributor s or Short Absorption Manifold s SAM e for mounting into AHU duct s or Remote Mounted Blower Pack s RMBP for direct space applications refer to options schedule Enclosed cabinet powder painted steel construction and air gap between cabinet and insulated humidifier tank ensures safe surface temperature a Evaporation tank and all internal tank components to be constructed of 304 stainless steel b H
25. its replace with new units and retest c Test and adjust controls and safeties Replace damaged and malfunctioning controls and equipment A Nortec www humidity com D Training 1 Training of the Owner s operation and maintenance personnel is required in cooperation with the Commissioning Authority Provide competent factory authorized personnel to provide instruction to operation and maintenance personnel concerning the location operation and troubleshooting of the installed systems The instruction shall be scheduled in coordination with the Commissioning Authority after submission and approval of formal training plans Refer to System Demonstrations section 01670 for contractor training requirements Refer to section 01810 Commissioning for further contractor training requirements XXXXX OR XXXXX Engage a factory authorized service representative to train Owner s maintenance personnel to adjust operate and maintain humidifiers a Train Owner s maintenance personnel on procedures and schedules for starting and stopping troubleshooting servicing and maintaining equipment and schedules b Review data in maintenance manuals Refer to Division 1 Section Contract Closeout c Review data in maintenance manuals Refer to Division 1 Section Operation and Maintenance Data d Schedule training with Owner through Architect with at least seven days advance notice 10 40 Page 36 2008 10 01
26. late during long term operation The Gas Steam humidifiers are shipped from the factory set at 25 of output This setting ensures that scale build up will be minimized for most water conditions The amount of blowdown is field adjustable The unit also monitors operation time and will indicate to the user when maintenance is required This time is adjustable to adapt to your water conditions but is set from the factory at 500 hours of 100 operation Three parameters will help determine the proper blowdown setting of the Gas Steam humidifier a Water hardness b Silica content c Chlorides Due to the wide range of water conditions found throughout North America it is important that the blowdown is set according to the local water conditions By water conditions we are referring to the hardness of the water supplied to the humidifier The hardness is measured in grains per gallon It is also important to test for silica content Silicates may cause foaming and contribute to scale buildup in the humidifier tank and float chamber When excessive foaming occurs Consult factory for possible solutions If you are unaware of the hardness or silica content of your water supply there are many do it yourself kits which can be purchased or there are several companies that will perform the tests for a reasonable price You can even contact your municipality for your water condition It is possible to reduce this setting according to obse
27. ner s hot surface igniters s and heat transfer efficiency maintained over all operating ranges 10 40 Page 32 2008 10 01 A Nortec www humidity com 6 10 40 Page 33 2008 10 01 e Blower speed rotation must to be monitored to ensure proper control of input modulation System will lock out gas valve operation if proper blower speed is not detected A secondary combustion air safety in addition to blower speed monitoring utilizing a mechanical pressure differential switch must be used with each blower to ensure combustion air is entering the pre mix blower properly Modular heat exchanger shall be easily removable through unit sidewall Removable cover at front of unit facilitates easy cleaning when applicable with complete access to tank and heat exchanger surfaces Automatic water level control within a separate float chamber isolated from the boiling action to prevent false water level indication a b c Fill rate must modulate to match capacity demand to ensure consistent output Fill cycles based on low water only is not acceptable System shall fill through the bottom of the tank to reduce steam quenching effect and noise level Filling at top of the tank is not acceptable Unit water level is to be continuously monitored with a dual magnetic electronic float system located outside of the boiling water to ensure accurate water level control and reduced maintenance Cool fill water is to be
28. nit may be completely drained down to reduce the mineral concentration and bring in new fresh water in the system The FTBD Full Tank Blow Down can be activated through the software or dip switches based on a Time of day setting When the 25 400 hours interval adjustable is reached the unit will wait until the set time of day before activating the full tank blowdown b External trigger using 24Vac signal from the building management system to the input terminal of the humidifier Following the full tank blowdown the unit will refill and perform a float check Whenever possible use this feature to reduce mineral accumulation in the system and reduce the time required to clean the interior of the reservoir 3 PRE CLEANING SEQUENCE 1 10 20 Page 19 2008 10 01 When cleaning of the reservoir is required use the tank pre clean feature This pre cleaning sequence will drain the full content of the unit fill back up and re drain any residual scale that has fallen from the cold water refilling This sequence is not an alternative to cleaning the humidifier it is meant to reduce the time required to clean the tank Full Size Frontal Opening Every GS Series Gas Steam Humidifier comes complete with a full size frontal opening to allow bottom cleaning of the tank and heat exchanger This opening allows quick and easy cleaning without removing the steam outlet of the unit A Nortec www humidity com THIS PAGE INTENTIO
29. orks 3 Features a Digital Feedback for unit standby humidifying mode b Digital feedback for service required c Digital feedback for fault indication d System demand display e Control room setpoint f Control high limit setpoint g Control room RH h Control high limit RH i Control enable disable j Networking capabilities of linking 8 units to one Nortec controller Hemidifier Status Capacity Limit 80 Figure 1 NORTEC Online Figure 2 NORTEC LINKS 2 10 30 Page 25 2008 10 01 A Nortec www humidity com M DRAIN WATER SUMP PUMP 1 Externally mounted below humidifier For use when no floor drain is available and water must be pumped higher than the bottom of the humidifier special high temperature model Rated for use with all GS models Recommended model W W Grainger 4RD29 or 4RD32 N STEAM DISTRIBUTION 1 2 3 Used in ducts or air handling units available in stainless steel Steam is dispersed through evenly spaced outlet orifices and upward perpendicular to the airflow When steam is dispersed through evenly spread outlet orifices that are along the steam distributors active zone They are offset 45 from vertical to address potential static pressure induced by downward airflow The distributor is rotated when installed O REMOTE MOUNTED BLOWER PACK 1 2 3 RMBP 208 240V 1709701 Blower Pack Direct steam distribu
30. r tremendous venting capability Whether you use galvanized B venting or special BH venting the GS Series comes ready for field connection Please make sure that the correct size of vent is used and follows local codes for proper operation of the unit 2 Humidifiers can be vented up to 100 ft 30 m equivalent without requiring power assistance The GS Series can be vented horizontally through the wall or vertically 10 10 Page 12 2008 10 01 3 Nortec www humidity com through the roof without any special requirements when using BH venting Required vent flue size depends on unit model All connections to the flue pipes are made without having to open the humidifier cabinetry The GS Outdoor Series comes complete with BH vent ready for easy assembly 5 CLEARANCES 1 2 3 10 10 Page 13 2008 10 01 The clearance dimensions shown in Figure 4 and 5 are for reference only and are the minimum requirements for maintenance of the humidifier All units have frontal cleaning port access For GS 100 200 frontal cleaning port access is required only For GS 300 400 top access is accessible from the front without clearance on the left side For GS 500 600 left side clearance is required to allow cleaning of the back of the heat exchanger A Nortec www humidity com Minimum 35 1 5 con Left 35 91 5 cm E Required ony for GSP 5300400600600 200222222 200220222 200220222
31. rvation and guidelines in the blowdown setting table found in the GS Installation Manual Form XX 287 Also when high silica content has been identified the humidifier tank and float chamber will require increased maintenance and the blowdown setting should be increased to maximum setting In this case silica content may determine the appropriate blowdown setting Softened water is recommended if the incoming water has a hardness in excess of 8 grains gal 136 ppm Reverse osmosis RO water can provide very long times between cleaning since it is cleaner than softened water Deionized Dl water can reduce the 10 20 Page 18 2008 10 01 A Nortec www humidity com maintenance a step further than RO and all the GS Series components are ready for RO or DI water use as a standard 10 Contact your local Nortec representative for a quotation of a water treatment system suited for your application 2 PREVENTIVE MAINTENANCE 1 4 The installation manuals of the GS Series of Gas Steam humidifier come with a complete Maintenance chart in order to guide internal personnel in cleaning and monitoring activities Like any other appliance the Gas Steam humidifier requires monitoring to ensure efficient operation throughout the life of the unit While in operation the unit will blowdown scaled water through a drain pump keeping control on the water concentration based on steam output For longer intervals between cleaning the u
32. status indication lights 10 10 Page 11 2008 10 01 A Nortec www humidity com 3 All control electronics are integral to humidifier cabinet and do not require separate cabinet on the humidifier B Remote Fault Indication 1 The GS Series provides output signals of the following type a Humidifier ON b c Humidifier Service d C Modulating Controls Humidifier Active Humidifier Fault 1 All models accept a single or dual channel input control signal s of the following type s a 0 20 mA b 4 20 mA c 0 5 VDC d 1 5 VDC e 0 10 VDC f 2 10 VDC 2 The GS Series can accept the following inputs a Two different modulating inputs demand or transducer signal b Full tank blowdown activation 24 VAC D On Off Controls 1 Safety on off controls are available from NORTEC as safety accessories These controls are highly recommended by NORTEC for high limit or air proving If controls were not ordered with the humidifier they must be supplied by others 3 ELECTRICAL 1 Humidifiers require field wiring to primary voltage terminal blocks The power requirement is a 120 or 208 240 V single phase supply Wiring is fed through a 7 8 hole on lower right hand side of control compartment 2 External wiring sizes must be in accordance with NEC and or CEC and existing local electrical codes and by laws 4 VENTING 1 The GS Series of Gas Steam humidifiers offe
33. supplied into the sensing chamber to keep the device cool Systems using conductivity probes or floats located within hot reservoir water are not acceptable Tank and float chamber to be separated with a minimum of 1 25 mm rigid insulation minimizing potential scale build up on float mechanisms due to heating of the contained water Humidifier shall have a dual fill valve to feed water to the tank and float chamber to reduce scaling and mineral build up on the magnetic floats Float chamber to include LED indication of five possible water level indications Ongoing self diagnostics including periodic float operation and fill drain rate verification Positive drainage blow down using a drain pump drawing water from the bottom of the tank maximizing mineral evacuation when applicable Skimmer not acceptable Blow down interval shall be based on actual steam production and must be adjustable to compensate for all water conditions to ensure maximum energy and maintenance efficiency Pre cleaning flushing feature shall be provided to reduce maintenance time Must include end of season blow down feature to evacuate contained water and minerals after 72 hours with no demand for humidification A Nortec www humidity com 7 Factory mounted full size backlit Liquid Crystal Display provides full operational status Display to include a keypad for user interface and adjustment of operational parameters including a b
34. tec www humidity com THIS PAGE INTENTIONALLY LEFT BLANK 10 30 Page 28 2008 10 01 Nortec www numidity com 10 40 SPECIFICATION 10 40 Page 29 A Nortec www humidity com 1 GENERAL A General 1 2 3 NORTEC GS Series Gas Fired Humidifier s as indicated on drawing s and as indicated on schedule s Complete and operable humidification system which meets applicable building codes Equipment start up and project inspection by qualified factory trained representative B Quality Assurance 1 2 6 Manufacturer For each product specified provide components by same manufacturer throughout Electrical Components Devices and Accessories Listed and labeled as defined in NFPA 70 Article 100 by a testing agency acceptable to authority having jurisdiction and marked for intended use Comply with ARI 640 Standard for Commercial and Industrial Humidifiers Products shall be supported with a warranty that ensures the product will be free from defects in materials and workmanship for a period of two years after shipment Commissioning of a system or systems specified in this section is part of the construction process Documentation and testing of these systems as well as training of the Owner s operation and maintenance personnel is required in cooperation with the Commissioning Authority Project Closeout is dependent on successful completion of all commissioning proced
35. ter 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 Outdoor only See Section 10 30 Page 24 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 standard optional x x DX X gt x lt gt lt lt X lt x 0 0 0 0 0 0 10 00 Page 5 2008 10 01 A Nortec www humidity com THIS PAGE INTENTIONALLY LEFT BLANK 10 00 Page 6 2008 10 01 Nortec www numidity com 10 10 OPERATION 10 10 Page 7 A Nortec www humidity com 1 WATER MANAGEMENT BETTER EFFICIENCY THAN EVER A Introduction 1 The GS Series of humidifiers is equipped with a unique float chamber water level monitoring device Two magnetic floats one is a backup measure 5 different water levels in the humidifier for proper oper
36. tion system that allows for direct space room humidification when steam introduction into a ducted system is not feasible The factory assembled Blower Pack includes integral steam distributor an internal steam hose and condensate connection for simple installation including 3 individual 110 cfm blower fans that can be powered by a separate 115 V single phase power supply or can be ordered with a factory installed step down transformer for all standard primary voltages The Blower Pack features an adjustable fan to provide different angles allowing for a flexible install A temperature sensor enables fans when steam production begins while maintaining a quiet operational environment The Remote Mounted Blower Pack ships fully assembled and ready for easy installation with NH GS SE Technologies See Blower Pack distribution for more information P SHORT ABSORPTION MANIFOLD 1 See Short Absorption Manifold Engineering Manual for model numbers 10 30 Page 26 2008 10 01 A Nortec www humidity com Steam Inlet Mounting Plate Condensation Drain Figure 3 Steam Distributor pli Dispersion Cross Section Of Detribxtor Ppe Condensate Return Figure 5 Short Absorption Manifold 10 30 Page 27 2008 10 01 ce Remote mounted Blower pack Condensate Min 3 ft Steam line 91 4cm 4 Depth of trap must be equal or more than 3 76 mm gE To Drain Figure 4 Blower Pack A Nor
37. umidifier requires zero clearance to combustibles and shall be installed against a partition to minimize floor space required All tank surfaces shall be insulated with minimum 1 25 mm thick insulation and enclosed within unit cabinetry to ensure safe surface temperature high overall efficiency and fast unit response time Units with exposed insulation shall not be acceptable c Maintenance shall not require the removal of the steam lines d Standard internal drain water cooler to ensure drain water tempering to 140 F 60 C If external drain water cooler required provide factory cross braced unit stand and factory supplied stainless steel p trap e Blow down p trap factory installed enclosed in cabinet prevents steam leakage to drain Field installation not acceptable A Nortec www humidity com Provide easily accessible primary voltage terminal block internal to cabinetry for single point field connection of electrical supply Single point connection for gas inlet must be provided Internal piping from gas inlet to burners must be factory installed and tested Field piping from the gas inlet to the burners is not allowed Humidifier to prevent back siphoning using an internal air gap for supply water to meet local plumbing codes Drain line to include a vacuum breaker to prevent siphon drainage of the tank Allowance for combustion air shall be provided in cabinet ventilation design Option for direct v
38. ures documentation and issue closure Refer to Project Closeout Section 01700 for substantial completion details Refer to Section 01810 Commissioning for detailed commissioning requirements Products specified below are to be manufactured is an ISO 9001 2000 certified facility C Submittals 1 a gt QW lt Submit product data under provisions of Section 15010 Include product description model dimensions component sizes rough in requirements service sizes and finishes Include rated capacities operating weights furnished specialties and accessories Submit manufacturer s installation instructions Submit operation and maintenance data Submit coordination drawings Detail fabrication and installation of humidifiers Include piping details plans elevations sections details of components and dispersion tubes Detail humidifiers and adjacent equipment Show support locations type of support weight on each support and required clearances Submit wiring diagrams including power signal and control wiring Differentiate between manufacturer installed and field installed wiring 10 40 Page 30 2008 10 01 A Nortec 6 www humidity com Submit minimum water quality requirements and water pressure requirements D Extra Materials 1 Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identi
39. y on accessories not of the companies manufacture such as controls humidistats pumps etc is limited to the warranty of the original equipment manufacturer from date of original shipment of humidifier THE COMPANY makes no warranty and assumes no liability unless the equipment is installed in strict accordance with a copy of the catalog and installation manual in effect at the date of purchase and by a contractor approved by THE COMPANY to install such equipment THE COMPANY makes no warranty and assumes no liability whatsoever for consequential damage or damage resulting directly from misapplication incorrect sizing or lack of proper maintenance of the equipment THE COMPANY retains the right to change the design specification and performance criteria of its products without notice or obligation A Nortec www humidity com ISO 9001 2000 walter OMI Meler 0 UL US LISTED Certificate No 002419 U S A CANADA Authorized Agent Walter Meier Climate USA Inc Walter Meier Climate Canada Ltd 826 Proctor Avenue 2740 Fenton Road Ogdensburg NY 13669 Ottawa ON K1T 3T7 TEL 1 866 NORTEC 1 TEL 1 866 NORTEC 1 EMAIL northamerica climate waltermeier com FAX 613 822 7964 WEBSITE www humidity com
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