Condair Nortec GS Series Operation And Maintenance Manual
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Condair Nortec GS Series Operation And Maintenance Manual

Gas-fired steam humidifier
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IMPORTANT! Read and save these instructions. This manual to be left with the equipment.
OPERATION AND
MAINTENANCE MANUAL
Gas-fired Steam Humidifier
Nortec GS-Series
Humidification and Evaporative Cooling
NORTEC

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Summary of Contents for Condair Nortec GS Series

  • Page 1 IMPORTANT! Read and save these instructions. This manual to be left with the equipment. NORTEC OPERATION AND MAINTENANCE MANUAL Gas-fired Steam Humidifier Nortec GS-Series Humidification and Evaporative Cooling...
  • Page 2 DANGER! Fire or explosion hazard! If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. DO NOT store or use gasoline or other flammable va- pors and liquids in the vicinity of the humidifier or any other appliance.
  • Page 3 OPERATION AND MAINTENANCE MANUAL Gas-fired Steam Humidifier Nortec GS-Series 2583701_C_EN_1812_Nortec-GS_OM...
  • Page 4 SERIAL NUMBER: Proprietary Notice This document and the information disclosed herein are proprietary data of Condair Ltd. Neither this document, nor the information contained herein shall be reproduced, used, or disclosed to others without the written authorization of Condair Ltd., except to the extent required for installation, operation or maintenance of the customer's equipment.

  • Page 5: Table Of Contents

    Contents Introduction Before You Start! General For Your Safety Product Overview General Description Functional Description Operator Interface Controls Control Software 4.2.1 Home Screen 4.2.2 General Navigational Elements 4.2.3 Operating Status 4.2.4 Maintenance and Fault Status 4.2.5 Help 4.2.6 System Information 4.2.7 Main Menu 4.2.7.1...
  • Page 6 Management of Scale and Chloride Levels 6.4.1 Adjusting Blowdown Settings Maintenance Procedures 6.5.1 Removal and Installation of Access Panels 6.5.2 Cleaning the Tank 6.5.3 Cleaning the Secondary Heat-exchanger 6.5.4 Cleaning the Float Chamber 6.5.5 Cleaning Hoses, Dual Fill Valves and Drain Pump 6.5.6 Cleaning the Burner Assembly 6.5.7...

  • Page 7: Introduction

    Comply with all local and regional regulations dealing with gas, combustion air, flue gases, water, steam and electrical systems. If you have additional questions, contact your Condair representative. They will be glad to assist you. General Limitations The subject of this manual is the Nortec GS humidifier.
  • Page 8 Keep this manual in a place where it is safe and readily accessible. If the equipment is moved to another location, make sure that the manual is passed on to the new user. If the manual is lost or misplaced, contact your Condair representative for a replacement copy. Language Versions This manual is also available in other languages.

  • Page 9: For Your Safety

    "Operating Data" on page 86 for details). Any other type of application, without the express written consent of Condair, is considered to be NOT conforming to its intended purpose, and may lead to dangerous operation and will void the warranty.
  • Page 10 DANGER! Risk of fire or explosion! The Nortec GS is a gas-fired humidifier. Improper installation, adjustment, alteration, service, maintenance or use can cause carbon monoxide poisoning, explosion, fire or other hazards that can cause serious injury, death or property damage. If over-heating occurs or if the gas fails to shut off: Shut off the gas supply at the manual gas shutoff valve before shutting off the electrical power supply.
  • Page 11 Modifications are NOT permitted on the Nortec GS humidifier without the express written consent of Condair. Always use original Condair replacement parts and accessories available through your Condair representative. The location of the various safety labels on the Nortec GS humidifier is shown in...
  • Page 12 Figure 1: Safety Labels Label, gas safety warning Label, keep cabinet closed warning Label, installation guidelines Label, general safety warning Label, specification 2583701_C_EN_1812_Nortec-GS_OM Nortec GS For Your Safety...

  • Page 13: Product Overview

    In addition, up to four humidifiers can be set up in a "Main-Extension" configuration using Condair's Linkup system to satisfy large humidification needs. The Nortec GS humidifier comes in two different housing styles – compact and full-size. The compact units are available in capacities of 50 lb/h (23 kg/h) and 100 lb/h (45 kg/h).

  • Page 14: Functional Description

    11, 12 Figure 3: Nortec GS Humidifier Components (GS 100 shown) Note: Door, side and top panels removed for clarity. Vent, exhaust Valve, manual drain 19 Pump, drain Hose, dual fill valve to fill box 10 Panel, front 20 Cover, water tank Inlet, gas 11 Hose, fill box to drain pump 21 Tank, water...
  • Page 15 If a flame is not sensed by the flame sensor(s), the above sequence is repeated after 15 seconds. The sequence is repeated upto a maximum of three times, after which the ignition control module(s) locks out and the fault message "Ignition Fail"...
  • Page 16 Figure 4: Nortec GS General System Overview Vent, air intake – connected to Drain line, condensate (with signal exterior (optional connection) trap) 14 Drain line Steam line (rigid pipe) Funnel (with trap) 15 Drain line, condensate (CS and Vent, exhaust 10 Filter, Water (optional, but NX models only) Valve, manual gas shutoff...

  • Page 17: Operator Interface

    Operator Interface Controls The operator interface in the Nortec GS humidifier is located on the front of the unit – refer to Figure 5. It consists of a touchscreen display with a LED status indicator, and an On/Off switch. Refer to Table 2 a description of each of these elements.

  • Page 18: Control Software

    Button, <Main Menu> – access the Main menu. Refer to for details. "Main Menu" on page 24 Visual indication, current steam output level 10 Model number, Condair humidifier 4.2.2 General Navigational Elements Figure 7 show the general navigational elements/features of the screens on the touchscreen display.

  • Page 19: Operating Status

    Figure 7: General Navigational Elements and Features Button, <Return> – cancel and Tab, current 10 Keypad, alpha-numeric 11 Button, <Increase> – increase return to previous menu level. Icon, additional information – Current menu/sub-menu access additional information. the setpoint value. selection Button, <Move Cursor Left>...

  • Page 20: Maintenance And Fault Status

    Table 4: Status Icon Descriptions Icon Description The icon appears to the left of the operating status message or the maintenance/fault mes- sage when the system is working normally. The icon appears to the left of the maintenance/fault status message when a maintenance reminder or a condition with a "Warning"...
  • Page 21 Select the <About> button on the Home screen (refer to Figure 6 on page 18) to view the system infor- mation for your Nortec GS. The tab structure for this selection is shown below. About > "General Tab" on page 21 "Timer Tab"...
  • Page 22 – Output: shows the current actual steam output level of the humidifier. – Operating Hours: shows the current accumulated number of hours the humidifier has been producing steam since startup. Weighted Hours: shows the number of operating hours on the unit –...
  • Page 23 – Blowdown Rate: shows the rate at which the tank is partially drained, as a percentage of actual steam production. Refer to the "Water Management Tab" on page 25 for more details. – Drain Cool: shows the configuration setting of the drain cool function. Select the field to choose a different mode –...

  • Page 24: Main Menu

    4.2.7 Main Menu Select the <Main Menu> button on the Home screen to view the Main menu. The Main menu and its contents are password-protected. Refer to Figure 8. Enter the password "0335" to access the Main menu. Figure 8: Main Menu Access Table The structure of the Main menu and its sub-menus is shown in...
  • Page 25 Features Menu Each tab under the Features menu is discussed below. Water Management Tab Idle Mode: allows you to set the idle function of the humidifier – when it is in standby mode. Options: Idle Only – the humidifier waits indefinitely for a demand signal.
  • Page 26 Fill Correction 1: allows you to adjust all the parameters for the – high volume fill valve(s) to compensate for valve tolerances, as well as site-specific conditions. CAUTION! Do not adjust this value unless instructed to do so by a Condair representative. Setting range: 0.1-10.0 Factory setting: –...
  • Page 27 Operation Tab Manual Capacity: allows you to set the capacity limitation value – as a percentage of the maximum capacity of the unit. Setting range: 20-100 % Factory setting: 100 % – Capacity Timers: Present status of the timer controlled capacity limitation ("On": timer controlled capacity limitation activated, "Off": timer controlled capacity limitation deactivated).
  • Page 28 Control Settings Menu Control Settings menu is discussed below. Refer to the structure of the tabs in Table 6 on page Basic Tab Source: allows you to select the source of incoming control/hu- – midity signal to the humidifier. Options: Analog –...
  • Page 29 100% output. Note: Band channel 2 setting appears only if Control Channels is set to "Dual". CAUTION! Do not adjust this value unless instructed to do so by a Condair representative. Setting range: 6-65% Factory setting: – ITime Channel 1: allows you to set the integral time for error cor- rections by the internal P/PI controller.
  • Page 30 RH Alerts Tab Note: This tab appears only if Control Mode is set to "RH P" or "RH PI". – RH Alerts: allows you to enable or disable the alert function that warns if sensed humidity is too high or too low. Options: On –...
  • Page 31 Multi-Unit Operation Tab Linkup: allows you to enable or disable the Linkup function, which – allows up to six humidifier to connect and operate together from a single set of control signals. It also allows you to designate the humidifier to operate as a "Main" or "Extension" unit. Options: Main –...
  • Page 32 Multi-Unit Operation Tab, continued... Sequence Interval: allows you to set the time interval used by – the control software to establish a new operating sequence to balance operating hours of linked humidifiers. Note: This set- ting is available only if Sequence Rotation is enabled.
  • Page 33 General Menu Table 6 on page 24 Each tab under the General menu is discussed below. Refer to for the menu structure. Basic Tab Date: allows you to set the current date in MM/DD/YYYY or DD/ – MM/YYYY format depending on the Date Format setting.
  • Page 34 Communications Menu Each tab under the Communications menu is discussed below. Refer to Table 6 on page 24 for the menu structure. Remote Enable Tab – Allow Remote Disable: allows you select whether steam produc- tion by the humidifier can be remotely disabled via the BMS. Options: Yes –...
  • Page 35 BMS Timeout Tab BMS Timeout: allows you to set the maximum time the humidifier – will wait without any communications from the BMS network before a timeout warning is generated. Setting range: 1-300 seconds Factory setting: 300 seconds Modbus Parameters Tab –...
  • Page 36 BACnet Parameters Tab (continued) The following settings appear only if BACnet is set to "BACnet/IP" or "MSTP". – Device Name: allows you to assign a name to the humidifier for communications over the BACnet/IP protocol. MSTP Mode: Master or Slave –...
  • Page 37 Nortec Online: provides web-based remote monitoring. This – operation operates in conjunction with a server at Condair's facili- ties and allows the user to monitor and control various aspects of humidifier operation, such as diagnostics and trend data, and send email notifications for service/fault warnings.

  • Page 38: 4.2.7.2 Service Menu

    4.2.7.2 Service Menu The Service menu lets you enter the startup code, reset the service reminder after performing scheduled maintenance, access the fault and maintenance history lists and perform diagnostics. Refer to Figure 8 on page 24. Refer to Table 6 on page 24 for the menu structure.
  • Page 39 Service History: allows you to view the service history list. – Reset Fault History: (contact your Condair representative) allows you to reset the fault history. A warning message is displayed ask- ing you to confirm the reset. All previously recorded fault history is erased.

  • Page 40: 4.2.7.4 Administrator Menu

    – Output Diagnostics: (contact your Condair representative) allows you to ac- cess the Output Diagnostics menu to enable or disable various system com- ponents. Note: The diagnostic menu will only be displayed after you acknowl- edge the warning message that the humidifier will be placed in standby mode.
  • Page 41 This information is shown when selecting Help on the Home Screen. Information includes Company Name, Address, Telephone Number, Email, and Website. Please contact your Condair representa- tive for assistance with this. Manually Load Contact Info: allows you to manually enter the –...

  • Page 42: Software Configuration

    Configuring for Multi-Unit Operation Set up the control software for multi-unit operation as described below. A maximum of four humidifiers can be set up in a "Main-Extension" configuration using Condair's Linkup system to satisfy large hu- midification needs. IMPORTANT! This procedure should only be used to control multiple humidifiers that are using the same control signal inputs from the same conditioned environment.
  • Page 43 • Sequence Interval – set the time interval used by the control software to establish a new operating sequence to balance the operating hours on the steam cylinders in the Linkup chain. • Linkup Timeout – if required, change the maximum time limit that the units in the Linkup chain can operate without a connection to each other before they generate a Linkup Timeout warning message.

  • Page 44: Operation

    The procedures described in this section assume that the Nortec GS humidifier has been set up properly and commissioned by a Condair technician or Condair-approved technician. Before the Nortec GS humidifier can initiate combustion, it must be filled with water and the control software must perform a series of functional and safety tests.

  • Page 45: Starting The Humidifier

    The spark-igniter(s) attempts to fire up three times to ignite the gas-air mixture. Since the gas supply is shut off, no flame is detected by the flame sensor(s) and the gas valve(s) is de-energized. The red LED in the ignition control module(s) flashes to indicate a safety lockout. The warning message "Ignition Fail"...

  • Page 46: Remote Monitoring

    The humidifier has power, and the On/Off switch is in the On position. The Nortec GS humidifier can also be monitored remotely from a laptop or desktop computer using the ethernet port on the integrated control board. Contact your Condair representative for assistance. 5.2.5 Inspections During Operation Perform regular inspection of the Nortec GS humidifier and the humidification system when it is in op- eration.

  • Page 47: Manually Initiate Tank Draining

    5.2.6 Manually Initiate Tank Draining Figure 9: Drain Screens During periods of inactivity, such as off-season or periods of low demand, drain the water from the tank. To drain the tank in the Nortec GS humidifier, manually initiate draining as follows. Refer to Figure 1.

  • Page 48: Shutting Down

    212 °F (100 °C). Close the drain valve after emptying the tank. 3. Make a note of any fault code displayed on the Home screen. Note: At the end of the season, report the fault history to a Condair-certified technician. Select Service > Fault/Service History tab to access the fault history.
  • Page 49 DANGER! Risk of harm to personnel or damage to property. Operating a damaged or improperly secured humidifier presents a risk of danger to person- nel or damage to property. Prevention: Do not restart a damaged or improperly secured humidifier. 1. Examine the humidifier and other system components for damage. Do not use the applicance if any part of the humidifier has been under water.

  • Page 50: Maintenance

    Maintenance General To ensure proper performance and long operating life of the Nortec GS humidifier, Condair recommends inspection of the appliance and installation at least once a year by a qualified service person. The amount and type of maintenance required is generally dependent on how much the humidifier operates. The Nortec GS humidifier monitors the amount of steam produced over time and will indicate when service is required.

  • Page 51: Mandatory Maintenance Schedule

    Mandatory Maintenance Schedule Table 8 lists the mandatory maintenance schedule for the Nortec GS humidifier. Table 8: Mandatory Maintenance Schedule 30 Days End of After Mid-Sea- Task Season Maintenance Initial (2000 hrs) Start-up Inspect drainage. Perform a visual check of the drainage system, including the air gap funnel and drainage into the building drain.

  • Page 52: List Of Consumables

    30 Days End of After Mid-Sea- Task Season Maintenance Initial (2000 hrs) Start-up Inspect conden- Check for leaks or blockages in the condensate lines throughout the sate collection steam line and exhaust vent (if applicable). system. Make sure that the condensate traps are primed. If a condensate neutralizer is installed, follow recommendations of the device manufacturer.

  • Page 53: Adjusting Blowdown Settings

    Table 10. Do-it-yourself kits are available to test hardness in the feed water. You can also contact your local municipality for a water quality report, or order a Condair water test kit. Table 10: Water Quality Requirements Water Type Hardness...

  • Page 54: Maintenance Procedures

    5-15 15-25 25-40 40-50 > 50 Not recommended for the Nortec GS humidifier without treat- ment of the water. Contact your local Condair representative. * Weighted hours Maintenance Procedures 6.5.1 Removal and Installation of Access Panels Removal Figure 10 on page Remove the door and side panels in the humidifier as follows.
  • Page 55 Figure 10: Access Panels Removal and Installation (GS 150 Shown) Screw, (×4) typical Tab, side panel Door panel, plumbing cabinet Panel, right side Notch, door panel 10 Panel, left side Top tab, door panel Screw, captive 11 Panel, fixed rear Notch, cabinet Door panel, control cabinet 2583701_C_EN_1812_Nortec-GS_OM...

  • Page 56: Cleaning The Tank

    Use a soft-bristled brush (not wire brush) to remove scale build-up. Replace the anode, if necessary. 9. Install a new tank gasket (Condair does not recommend reusing the tank gasket), and secure the tank cover to the tank as follows:...
  • Page 57 d. Install the top clamp(s) using the M6x40 screws (with anti-seize). Hand tighten to hold door in place. e. Install the left and right clamps. Hand tighten M8x25 screws to hold brackets in place. Use tightening sequence shown below and Torque top M6x40 screw(s) securing the clamp to 35 in-lb (3.9 Nm) Torque top clamp, M8x25 screw(s) securing the door to 10 in-lb (1.2 Nm).

  • Page 58: Cleaning The Secondary Heat-Exchanger

    6.5.3 Cleaning the Secondary Heat-exchanger Clean the secondary heat-exchanger and the condensate trap (CS/NX model only) as follows. Refer Figure WARNING! Risk of severe burns from contact with hot surfaces! Components of the unit can be hot to the touch. Contact with the hot surfaces can result in severe burns.

  • Page 59: Cleaning The Float Chamber

    1. Drain the tank, and shut down the humidifier as described in "Shutting Down" on page 2. Remove the side panel – refer to "Removal and Installation of Access Panels" on page 3. Disconnect the two water hoses from the secondary heat-exchanger. 4.

  • Page 60: Cleaning Hoses, Dual Fill Valves And Drain Pump

    Do not use solvents, aromatized or halogenized hydrocarbons, or other harsh chemicals for clean- ing. Disinfectants may only be used if they do not leave behind toxic residue. Rinse all parts thor- oughly with clean tap water after cleaning. 1. Shut down the humidifier as described in "Shutting Down"...
  • Page 61 Figure 15: Cleaning Hoses, Fill Valve and Drain Pump Valves, dual fill 15 Hose, secondary heat-exchanger to trap hose Strainer 16 Hose, secondary heat-exchanger to inlet hose Hose, fill box weldment to drain pump 17 Hose, dual fill valve to inlet hose Fitting, drain 18 Hose, trap O-ring...

  • Page 62: Cleaning The Burner Assembly

    6.5.6 Cleaning the Burner Assembly The burner(s) in the Nortec GS humidifier does not require maintenance. However, if the burner(s) is not operating properly, clean the burner(s) and spark-igniter as described below. Refer to Figure WARNING! Risk of severe injury to personnel, or property damage! Prevention: Follow proper shutdown procedure before cleaning the burner(s).
  • Page 63 4. Carefully swing the blower assembly and attached blower tube up to disengage it from the burner assembly. 5. Disconnect the ignition wire from the spark-igniter. 6. Remove the ten M6×12 hex-head bolts (M6x14 for newer units) and the burner assembly. Discard the burner gasket.

  • Page 64: Replacing Backup Battery

    6.5.7 Replacing Backup Battery DANGER! Risk of electric shock! Nortec GS humidifier is mains powered. Live parts may be exposed when the door panel on the control cabinet is removed. Touching live parts may cause severe injury or even death. Prevention: Shut down the unit as described in "Shutting Down"...

  • Page 65: Replacing Internal Fuse

    6.5.8 Replacing Internal Fuse DANGER! Risk of electric shock! Nortec GS humidifier is mains powered. Live parts may be exposed when the door panel on the control cabinet is removed. Touching live parts may cause severe injury or even death. Prevention: Shut down the unit as described in "Shutting Down"...

  • Page 66: Resetting Service Reminder

    6.5.9 Resetting Service Reminder CAUTION! Risk of damage to equipment! DO NOT reset the service reminder unless the scheduled maintenance has been performed. Reset the service reminder in the control software as follows after performing the required scheduled maintenance: 1. Select the <Main Menu> button on the Home screen, then enter the password to login. Refer to "Main Menu"...
  • Page 67 CAUTION! Risk of file corruption! DO NOT interrupt software updating once it starts. Wait until updating is completed. Corrupted control software can render the humidifier unusable. Note: If software updating is accidentally interrupted, the humidifier will not operate. However, updating can be resumed by leaving the USB key inserted in the board and power cycling the unit.

  • Page 68: Fault Isolation

    Troubleshooting of the Nortec GS humidifier must only be performed by well qualified and well trained personnel. Electrical repairs must only be performed by a licensed electrician authorized by the customer or by Condair service technicians. Troubleshooting the Nortec GS humidifier may require personnel to access the inside of the control cabinet in the humidifier which may expose personnel and equipment to the hazards described below.

  • Page 69: General Troubleshooting

    When a warning/fault condition occurs, select the warning or fault message to view the "" on page 38 and additional details. Refer to Figure Figure 21: Fault History Screens In addition, the Service relay in the remote fault board can also be set up to indicate that a service warn- ing or a system warning/notification is active.
  • Page 70 Humidifier Table 14: General Troubleshooting – Nortec GS Humidifier Problem Probable Cause Corrective Action(s) Nothing happens when the Incorrect voltage, or no voltage. – Check the disconnect switch in the supply line. On/Off switch is turned On. – Check the fuse between the transformer and the On/ Off switch.

  • Page 71: Nortec Gs Warning And Fault List

    The SIM card may not be seated Check that the SIM card is seated properly on the integrated control properly. board. Defective SIM card. Contact your Condair representa- tive. – Main Unit Missing No communication between the Extension unit and the Main unit in the (or) Linkup chain.
  • Page 72 Code Message Probable Cause Corrective Action(s) Warning Fault Fill Warning (W22) The fill valve(s) have been active for an extended length of time and the Fill Timeout (E22) water level is still zero. The dual fill valves remain activated. The Fill Warning will eventually become a Fill Timeout if the issue has not been addressed.
  • Page 73 Code Message Probable Cause Corrective Action(s) Warning Fault – RH Signal The RH input is less than 3%. Operation is interrupted until an input higher than 3% is received. Loose wiring, faulty sensor. – Check the connection between the sensor and the unit. –...
  • Page 74 "Cleaning the Float Chamber" on page – Startup Code Activation code required to use the humidifier. Activation code missing. – Contact your Condair representative. – Driver Board Fault No communication between the integrated control board and the driver board. Dip switch settings are not correct.
  • Page 75 Code Message Probable Cause Corrective Action(s) Warning Fault – E138 Over-Temperature The exhaust or tank safety sensor has exceeded the safety limit. The unit Fault will not operate when this fault condition is active. Fix the problem first, "Resetting Fault Status" then reset the over-temperature switch as described in on page Unit may be operating with incorrect...
  • Page 76 – three flashes of the red LED indicate problem with the supply, or gas valve, or a loose connection. Contact your Condair repre- sentative if further assistance is required. Faulty ignition control module. – Check the status LED on the ignition control module –...
  • Page 77 If 24 VAC voltage is detected at "V2" but not at "TH", replace the gas valve. Contact Condair to order a replacement gas valve. – E144 Float Level On three consecutive occasions, more than one float level was registering at the same time.
  • Page 78 Code Message Probable Cause Corrective Action(s) Warning Fault – E145 Fill Check Fault The dual fill valves have been active for an extended period of time without the water level rising in the float chamber. The unit will not operate without an accurate water level reading.
  • Page 79 – Restart the unit, and check the missing. blower rpm in Input Diagnostics the control software. If the rpm is low, contact your Condair representative. Restrictions at blower, or damaged – Visually inspect the blower and blower. blower inlet for restrictions.

  • Page 80: Resetting Fault Status

    Code Message Probable Cause Corrective Action(s) Warning Fault W149 E149 AP Open Warn The air proving switch identified has opened while the unit was operating or during blower start-up. The unit will interrupt operation and retry three times. After a third attempt a fault message is generated. The unit is unsafe to operate with this fault condition.

  • Page 81: Driver Board Layout

    Driver Board Layout Figure 22 Section 7.4, "Nortec GS Warning shows the components of the driver board that are referenced in and Fault List" of this manual. TP33 TP20 REL3 TP19 TP18 TP21 REL10 TP22 LED9 TP11 LED1 TP17 TP12 LED10 TP23 REL9...

  • Page 82: Wiring Diagrams

    Wiring Diagrams Legend: CONTROL SIGNAL PRIMARY VOLTAGE Wire Colors CONNECTIONS CONNECTION R - Red W - White Bk - Black Bl - Blue Br - Brown EXTERNAL EXTERNAL Gr/Y Low voltage O - Orange terminal strip Unit ON Steam Service Error Y - Yellow INTERNAL...
  • Page 83 Figure 25 shows the supplementary wiring diagram for the Nortec GS 450/600. Connections are carried over from Figure 24 on page Legend: Continued from Continued from Continued from Wire Colors previous wiring diagram previous wiring diagram previous wiring diagram R - Red W - White Bk - Black Bl - Blue...

  • Page 84: Decommissioning

    Decommissioning General If the Nortec GS humidifier needs to be removed from service (for disposal or long-term storage), strictly follow all instructions in this chapter. Personnel Qualifications Decommissioning of the Nortec GS humidifier must only be performed by a qualified service technician authorized by the customer.

  • Page 85: Removal From Service For Disposal Or Long-Term Storage

    The Nortec GS humidifier should not be disposed off in domestic waste, and should only be disposed off in accordance with local regulations at authorized collection facilities. If you have any questions, contact the appropriate local authorities or your local Condair representative. 2583701_C_EN_1812_Nortec-GS_OM...

  • Page 86: Product Specifications

    Product Specifications 10.1 Performance Data Minimum Input Maximum Input Min./Max. Steam Nortec GS Capacity Natural Gas Propane Natural Gas Propane Model lb/h (kg/h) BTUh (kW) BTUh (kW) BTUh (kW) BTUh (kW) GS 50-CS 12,400 (3.6) 13,000 (3.8) 62,000 (18.2) 62,000 (18.2) 10-50 (4.5-23) GS 50-NX 13,000 (3.8)

  • Page 87: Size And Weight

    Water Supply: Water pressure (regulated) 30-80 psig (207-550 kPa) Flow rate 2.6 gpm (10 L/min) for GS 50-300, 5.3 gpm (20 L/min) for GS 450/600 Water temperature 34-59 °F (1-15 °C) recommended; maximum 77 °F (25 °C) Water quality Cold potable water filtered to 5 μm (optional), hardness of 0-256 ppm, pH level between 5-8 and chloride content 0-50 ppm.

  • Page 88: A Appendix

    Appendix Torque Values Figure A1 shows the hardware in the Nortec GS humidifier that MUST be torqued to the values shown in Table A1 on page A-89. Figure A1: Nortec GS Hardware to be Torqued Bolt, M6×12, flange-head (qty. 4) Stud, M6x30 (Bolt, M6×16, hex-head, for older units) Bolt, M6×16, hex-head (qty.

  • Page 89: Torque Sequences

    Table A1: Nortec GS Standard Torque Values Figure A1 Anti-Seize Item Fastener and Location Quantity Torque Re-torque Lubricant* Number Bolt, M6×12, flange-head, stainless steel – secondary – 15 in·lb (1.7 N·m) 15 in·lb (1.7 N·m) heat-exchanger/exhaust flange per flange bolts Stud, M6×30 and serrated Tighten until metal to flange nut (replace the M6x16...
  • Page 90 M6x14 M6x14 M6x14 M6x14 M6x14 M6x14 M6x14 M6x14 M6x14 M6x40 Figure A3: Burner Assembly Torque Sequence. M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 M6x10 Figure A4: Primary Heat Exchanger Torque Sequence. 2583701_C_EN_1812_Nortec-GS_OM Nortec GS Appendix-A...
  • Page 91 Warranty Condair Inc. and/or Condair 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, are free from defects in material and workmanship.
  • Page 92 CONSULTING, SALES AND SERVICE: U.S.A. 835 Commerce Park Drive Ogdensburg, NY 1366-2209 CANADA 2740 Fenton Road Ottawa, ON, K1T 3T7 Tel: 1.866.667.8321 Fax: 613.822.7964 Email: na.info@condair.com Website: www.condair.com...

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