DriSteem LX Series Installation, Operation And Maintenance Manual
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DriSteem LX Series Installation, Operation And Maintenance Manual

Gas-to-steam humidifier
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WARNING
Fire or explosion hazard
If the information in this manual is not followed
exactly, a fire or explosion could result, causing
property damage, personal injury, or death.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
If you smell gas:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from an off-
site phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the
fire department.
Installation and service must be performed by
a qualified installer, service agency, or the gas
supplier.
For toll-free support call DriSteem Technical
Support: 1-800-328-4447
LX SERIES
Gas-to-Steam Humidifier
Installation, Operation, and
Maintenance Manual
Read and save these instructions
STEAM HUMIDIFICATION

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Summary of Contents for DriSteem LX Series

  • Page 1 Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. Installation and service must be performed by a qualified installer, service agency, or the gas supplier. For toll-free support call DriSteem Technical Support: 1-800-328-4447...
  • Page 3 Failure to follow the instructions in this manual can cause moisture to accumulate, which can cause bacteria and mold growth or dripping water into building spaces. Dripping water can cause property damage; bacteria and mold growth can cause illness. Continued LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 4 To convert the humidifier to a different gas type, contact DriSteem Technical Support or your local DriSteem Representative/Distributor. • Installation must conform to the requirements of the authority having jurisdiction or, in the absence of such requirements, must conform to: –...
  • Page 5 • Children should be supervised to ensure that they do not play with the humidifier. • The GTS humidifier LX series must be vented and supplied with combustion and ventilation air as described in this IOM. Ensure the vent and air piping and the combustion air supply comply with these instructions regarding vent, system, air system, and combustion air quality.
  • Page 6 These hazardous conditions could cause property damage, personal injury, or death. Follow the shutdown procedure on Page 75 before performing service or maintenance procedures on any part of the system. Continued LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 7 Make sure the water supply to the humidifier remains open during draining. Excessive supply water pressure Supply water pressure greater than 80 psi (550 kPa) can cause the humidifier to overflow. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 8: Table Of Contents

    Installation checklist ........66 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 9 Extended warranty ........106 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 10: Overview

    Product overview The GTS humidifier LX series is a high efficiency gas appliance that burns either natural or propane gas to heat and boil water into steam for humidification. The unit has either one or two burners that fire into a submerged heat exchanger.
  • Page 11 Product overview FIGURE 9-1: GTS HUMIDIFIER LX SERIES (MODELS LX-400 THROUGH LX-600) Steam outlet Water level sensing probe Combustion air pipe Flue gas vent Control components Secondary heat Primary heat exchanger exchanger Overflow outlet Gas connection Blower Electrical field connection...

  • Page 12: System Overview

    FIGURE 10-1: GTS HUMIDIFIER LX SERIES Duct dispersion option shown: Ultra-sorb Model LV Interconnecting steam piping (by installer) Flue gas vent to Combustion outside air intake Dispersion drain and trap GTS LX humidifier OM-8175 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 13: Specifications

    The input shown in Table 11-2 is derate when operating units at a high High elevation derate elevation. See "Tuning the gas valve" on page 80 for adjusting oxygen levels on the LX series gas valve. Elevation Input derate %...

  • Page 14: Water

    UNIVERSAL WATER DriSteem's GTS humidifier LX series incorporates universal water control for use with any water type (well, tap, softened, DI or RO water). There is no need to change control configurations based on water type when ordering equipment or retrofitting to fit new water sources in the field.
  • Page 15 Tank volume (gpm) (minutes) (minutes) (minutes) gals/hr litres/hr (gallon) (liters) LX-50 LX-75 LX-100 LX-150 LX-200 LX-250 LX-300 LX-400 LX-500 LX-600 *Fill and drain rates are approximate and based on 50 psi supply water pressure. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 16 This setting is user-adjustable in the Vapor-logic controller. c. Determine if the humidifier/s will be using integral tempering. Integral tempering is only an option on the GTS LX series and RTS RX series. Using integral drain water tempering will drive a larger permeate storage tank.
  • Page 17 RO-403 has a capacity of 1000 pph at 50° F. 3. Determine permeate storage tank size using the following calculation. This will ensure any DriSteem humidifier will fill with water in ten minutes or less. a. Using integrated tempering: [(2 x humidifier tank size) - (selected RO capacity x 10 min ÷...

  • Page 18: Indoor Dimensions

    OM-7946 See "Indoor unit dimensions" on page 17-1. FIGURE 16-2: LX MODELS 200 - 300 INDOOR UNIT DIMENSIONS Side view Front view Top view OM-8014 See "Indoor unit dimensions" on page 17-1. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 19 8.92 14.5 Combustion air 14.5 Combustion air diameter Flue and combustion air height 6.59 6.59 22.4 22.4 Fill valve connection position 5.60 5.60 12.4 12.4 11.8 11.8 Condensate Drain 4.55 4.55 6.95 6.95 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 20: Installation

    Provide a level, solid foundation for the humidifier. WARNING • The GTS humidifier LX series vent and air piping can be installed through Installation requirements the roof or through a sidewall. Use only vent/air piping methods described The humidifier must be installed by in this IOM.
  • Page 21 Location and clearance recommendations FIGURE 19-1: LX SERIES CLEARANCE RECOMMENDATIONS (INDOOR UNITS) 18" (457 mm) Indoor Unit 1" (25 mm) 1" (25 mm) 36" (914 mm) 30" (762 mm) for LX-50 through LX-150 54" (1372 mm) for LX-200 through LX-600...

  • Page 22: Optional Floor Stand Mount (Models 50, 75,100, And 150 Only)

    1. Use the hardware provided by DriSteem to assemble. Model LX-150 2. Arrange appropriate lifting mechanism and personnel to mount the GTS humidifier LX series on the floor stand. See Warning below. 3. Use the lifting hole on the base of humidifier to carefully lift it off the ground.
  • Page 23 Optional floor stand mount (Models 50, 75,100, and 150 only) FIGURE 21-1: LX SERIES WITH FLOOR STAND MOUNT (MODELS 50, 75, AND 100) 21.125" (537mm) OM-7970 See "Indoor unit dimensions" on page 17-1. OM-7962 FIGURE 21-2: LX SERIES WITH FLOOR STAND MOUNT (MODEL 150) 21.125"...

  • Page 24: Optional Wall Mount (Models 50, 75 And 100 Only)

    Optional wall mount (Models 50, 75 and 100 only) FIGURE 22-1: LX SERIES WITH WALL MOUNT 23.13" (587 mm) 22.88" (581 mm) 42.75" (1086 mm) 20.13" (511 mm) 24.63" (626 mm) OM-7993 See "Indoor unit dimensions" on page 17-1. OM-7992...
  • Page 25 #12 sheet metal screws, see Figure 22-1. • Floor stand is not seismic rated. WARNING HEAVY OBJECT To avoid muscle strain or back injury, use lifting aids and proper lifting techniques when removing or replacing. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 26: Overview

    Overview FIGURE 24-1: LX SERIES FIELD PIPING OVERVIEW - MODELS LX-50 THROUGH LX-150 Shock arrester recommended to reduce water hammer (by installer) Supply water line; water pressure range Steam hose or tubing 25 to 80 PSI (172 to 582 kPa); static and...
  • Page 27 Overview FIGURE 25-1: LX SERIES FIELD PIPING OVERVIEW - MODELS LX-200 THROUGH LX-600 Steam hose or tubing to dispersion Shock arrester recommended to reduce water hammer (by installer) Supply water line; water Steam outlet (see page 28) pressure range 25 to 80 PSI (172 to 582 kPa);...

  • Page 28: Piping

    FIGURE 26-2: CONNECTION DETAILS GTS LX 200 - 300 Note: Field connections plate not shown. OM-8178 Note: Field connections plate not shown. OM-8179 FIGURE 26-3: CONNECTION DETAILS GTS LX 400 - 600 OM-8180 Note: Field connections plate not shown. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 29: Connection Sizes

    3/4 (pipe thread) 3/4 (pipe thread) 3/4 (pipe thread) 3/4 (pipe thread) (recommended) Notes: * For pipe thread steam outlet options, see DriCalc, DriSteem’s free sizing and selection software, available at www.dristeem.com. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 30: Steam

    Piping: Steam DriSteem humidifiers operate with several types of dispersion assemblies for open spaces, ducts, and air handling units. Information on placement, sizing, support, and best practices for interconnecting piping can be found in the Installation and Operation Manual for the dispersion device operating with this humidifier and in the DriSteem Interconnecting piping instructions.

  • Page 31: Supply Water

    Silica < 15 ppm • Do not use heated supply water. Using supply water over 90°F (32 °C) will adversely effect the performance of the GTS humidifier LX series. Supply water outside of the guidelines may void your DriSteem warranty.

  • Page 32: Drain

    • Do not locate the humidifier directly above a floor drain -- skim and drain water dumped into the drain will cause flash steam. This steam will rise and saturate electrical components, adversely affecting component life and performance. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 33 FIGURE 31-1: LIFTING DRAIN WATER Discharge piping, by installer Inlet drain water piping, by installer Check valve Water pump DC-1117 Note: Size water pump to handle a minimum of 12 gpm (45.4 L/m). LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 34: Optional Mechanical Drain Water Tempering

    If such an install is desired, the mechanical tempering device can be used. Ensure that the automatic drain water tempering is turned off on the Vapor-logic controller (see page 34-1). LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 35 21. Test run LX to make steam and then drain, while checking for leaks. 22. Install doors and put LX into the desired drain and operating modes. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 36 10. Turn on water to both the fill manifold and tempering device and check for leaks. Disconnect and 11. Install doors and put the LX humidifier into the desired plug operating mode. Mechanical drain tempering device OM-8123 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 37: Optional Condensate Return

    Optional condensate return Piping: FIGURE 35-1: LX SERIES CONDENSATE RETURN FIELD PIPING - MODELS LX-50 THROUGH LX-150 The purpose of the condensate return is to return condensate from the dispersion device instead of sending that condensate to drain. This is an optional connection. See connection size and type on pages 26 and 27.
  • Page 38 Piping: Condensate return FIGURE 36-1: LX SERIES CONDENSATE RETURN FIELD PIPING - MODELS LX-200 THROUGH LX-600 Air vent tube Optional condensate return piping from dispersion unit, ¾" pipe thread (DN20) fitting at humidifier 6" (150 mm) minimum vent height Access by others 48"...

  • Page 39: Flue Gas Condensate Drain

    Piping: Flue gas condensate drain The GTS LX Series is a condensing gas-fired appliance. Condensate drains CAUTION from the secondary heat exchanger and needs to be managed. Flue gas Flue condensate removal condensate may also need to be drained from the flue vent piping. See Figure (For Models LX-50 - LX-300 only).
  • Page 40 5/8" or larger hard pipe suitable for use with acidic condensate to alleviate kinking issues with hose. Models LX-400 through LX-600 do not require a drip tee on the flue vent, as it is integrated into the unit. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 41: Gas

    GAS PIPING GUIDELINES • Gas connection size and type are listed on page 26 and 27. WARNING • Gas piping must be properly supported to minimize strain on the LX series Fire hazard gas valve. Supply the humidifier only with the gas type (natural gas or LP gas) listed •...
  • Page 42 3/4" (DN20) 1" (DN25) 1¼" (DN32) 1½" (DN40) 14.7 1050 29.7 1600 45.3 20.7 1100 31.1 16.7 25.2 14.2 21.5 12.5 19.0 See example on page 41 11.3 17.3 10.5 15.9 15.0 13.9 13.0 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 43 Referring again to Table 40-2, you see that for the same 60 ft (18 m) length, you now need to use 1½" (DN40) pipe due to the change in the specific gravity of the gas. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 44 Piping: Gas (continued) FIGURE 42-1: GTS GAS PIPING All Models 1/2" pipe thread (DN15) piping Manual gas shutoff valve Plugged test gauge connection OM-7953 3” (76 mm) min. Drip pocket LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 45: Venting

    Venting GUIDELINES • The GTS humidifier LX series is a Fan Assisted Category IV (condensing, WARNING positive pressure) Appliance. Installation requirements • Flue gas condensate is produced and drains from the secondary heat The humidifier must be installed by exchanger. Piping instructions for this connection can be found on Page a qualified technician and meet the requirements of all governing codes.

  • Page 46: General

    325 (99) LX-500 35 (10) 225 (69) 35 (10) 225 (69) LX-600 175 (53) 175 (53) The minimum equivalent pipe length for flue gas vent and combustion air intake is 10 ft (3 m). LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 47 Venting: General • The flue gas outlet and combustion air inlet pressures at the vent adapters on the LX series GTS humidifier must be within the ranges shown in Table 46-2 from full output to minimum output. • Flue gas outlet and combustion air inlet adapters accept PVC, CPVC, Polypropylene and stainless steel piping.
  • Page 48 (+112 Pa) -0.45" WC +0.05" WC Combustion air inlet pressure (-112 Pa) (+12 Pa) FIGURE 46-1: VENT ELBOWS AND TEES long medium mitered concentric Note: A maximum of eight elbows, including terminations, are allowed. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 49: Room Air Combustion

    Unconfined space with all air from outside the Same as confined space; all air from outside building the building * The minimum dimension of any opening is 3" × 3" (76 mm × 76 mm). LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 50 • Halogen type refrigerants • Cleaning solvents (such as perchloroethylene) • Printing inks, paint removers, varnishes, etc. • Hydrochloric acid • Cements and glues • Antistatic fabric softeners for clothes dryers • Masonry acid washing materials LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 51 6" - 8" (152 - 203 mm) 3" (80 mm) air intake) Flue gas condensate See Table 44-1 for flue venting sizes and lengths. To drain or condensate neutralizer OM-7978 Note: Field piping supplied by others. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 52 THROUGH LX-600 Flue gas vent to outside Quantity of two 90° elbows (See Table 44 for vent size) Bird screen No drip tee required See Table 44-1 for flue venting sizes and lengths. OM-8020 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 53: Sealed Combustion

    Pipe wrap insulation tape can be used on the LX combustion air hose(s). Use a 25/50 flame smoke rated insulation (see Figure 51-2). FIGURE 51-1: LX SERIES SEALED COMBUSTION CONNECTION FIGURE 51-2: INSULATING COMBUSTION HOSES Flue gas vent to outside...

  • Page 54: Vertical

    Canada] minimum clearance above highest Vent anticipated snow level. Maximum of 24" (610 mm) Combustion air above roof Roof boot/flashing (field supplied) Support (field supplied) Elbow (field supplied) OM-7976 Combustion air Flue gas LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 55 4' (1.2 m) minimum from any cable, dormer, or other roof structure with building interior access (e.g. vent or window). • 10' (3 m) minimum from any forced air inlet to the building, including make up air inlets such as dryer or furnace areas. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 56: Sidewall

    • Prevailing winds could cause freezing of condensate and water/ice buildup where flue products impinge on building surfaces or plants. • Avoid possibility of accidental contact of flue gas with people or pets. FIGURE 54-1: GTS HUMIDIFIER LX SERIES SIDEWALL VENTING Flue gas vent CAUTION...
  • Page 57 Venting: Sidewall FIGURE 55-1: GTS HUMIDIFIER LX SERIES SIDEWALL VENTING For Models LX-50 - LX-300 only: Install a drip tee within the first 3' (1 m) of flue venting for flue condensate removal. If flue vent is less than 10' (3 m) long and a sidewall exit, then no drip tee needed.
  • Page 58 12" (305 mm) below the vent end; and the vent pipe must not extend more than 24" (610 mm) vertically outside the building unless supports are added. Grade/snow line FIGURE 56-1: GTS HUMIDIFIER LX SERIES SIDEWALL VENTING Maximum outside vent piping length 24" (610 mm) Bird screen...

  • Page 59: Wiring

    GTS wiring diagrams located inside the control cabinet. See the electrical specifications in Table 11-1 (North America) and Table 101-1 (Europe). • Refer to the Vapor-logic Installation and Operation Manual for additional information on the controller furnished with this GTS humidifier. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 60: Overview

    FIGURE 58-1: OUTDOOR ENCLOSURE TYPICAL INSTALLATION OVERVIEW Steam outlet to rooftop AHU dispersion Flue vent (by installer) Pipe chase Gas piping Electrical connections Flue condensate drain Fill OM-8004 Drain piping LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 61: Outdoor Enclosure

    In the event of a power loss, the drain valve will open and drain the tank to prevent the water from freezing. The water will be cooled by the mechanical tempering device that is installed on all outdoor LX series units. See page 33 for more information.

  • Page 62: Location

    • Locate unit so air intakes are not too close to other exhaust fan outlets, gasoline storage, or other contaminants that could potentially cause dangerous situations. Using and storing gasoline or other flammable vapors and liquids in open containers near this appliance is hazardous. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 63: Dimensions

    344.678 13.57 344.678 3.38 85.852 2.24 56.896 Curb height 14.0 - 36.0 356 - 914 14.0 - 36.0 356 - 914 14.0 - 36.0 356 - 914 14.0 - 36.0 356 - 914 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 64: Mounting

    • Verify that the position of the pad or curb properly supports the unit and that support structure dimensions coincide with unit dimensions. • DriSteem rooftop curbs are shipped knocked down for ease of transporting to the roof. The curb is manufactured out of 14-gauge galvanized steel and is shipped with all hardware for bolt-together assembly, a curb gasket for sealing between the curb and the unit, and an installation drawing.
  • Page 65 For cold climates, do not drain condensate on roof. This installing water, drain, flue gas condensate, and gas will cause the condensate to freeze and back up. Follow on the GTS humidifier LX series. For Outdoor Enclosure local code requirements. specific items, see below.

  • Page 66: Electrical

    LX-250 LX-300 LX-400 16.5 1606 LX-500 16.5 1606 LX-600 16.5 1612 * Add approximately 60-90 lbs (27-41 kg) for packaging material. ** Full load amps listed are for the humidifier and the enclosure. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 67: Freeze Protection Piping

    Refer to governing codes for drain pipe size and maximum discharge water temperature. 5. If the valves are installed as per note 2 and drain water tempering is required during a power outage, a LX series mechanical tempering device needs to be installed inside the building.

  • Page 68: Installation Checklist

    ‰ The tank drain water is NOT plumbed to go through the condensate neutralizer (see warning on page 30). FLUE GAS CONDENSATE DRAIN See page 37 for more information. ‰ Condensate neutralizer installed. Ensure tank drain is NOT plumbed through the condensate neutralizer. (see warning on page 37). LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 69 ‰ Humidifier has been vented as a Category IV gas-fired appliance (positive pressure, condensing) according to all local codes and ordinances. ‰ Humidifier has a dedicated flue vent and is not vented with another LX series or any other gas-fired appliance. ‰ Flue vent lengths comply with Table 42-1 ‰...

  • Page 70: Operation

    The GTS humidifier LX series is shipped with drain water tempering enabled. This feature can be disabled in the Vapor-logic controller. When drain water tempering is enabled, the following steps will take place to ensure drain water is less than 140°F (60 °C):...
  • Page 71 This is a user-adjustable setting. See the Vapor-logic controller operation manual for instructions on how to adjust this feature. • Freeze Protection: If, for any reason, the tank temperature falls below 40°F (4°C), the humidifier will drain. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 72: Start-Up

    ‰ Verify that the humidifier tank is securely installed and level before filling with water (see the operating weights in Table 11-1. ‰ Verify that the humidifier tank is level front to back and side to side after it is full of water. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 73: Start-Up Procedure

    5.5% +/- 1.0% at 100%. See page 81 for instructions on how to adjust oxygen levels. 10. See page 68 for continuous operation and safety features of the GTS LX and page 89 for troubleshooting. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 74: Commissioning Checklist

    ‰ 18-gauge twisted pair shielded Flue piping ‰ Flue piping material ‰ Twisted pair communication connection between boards (multi-tank units only) ‰ PVC ‰ CPVC ‰ Polypropylene ‰ Stainless steel Size ________________________________ Rise ________________________________ ________________________________ Continued LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 75 Burner 2 color after 15 minutes: ‰ Blue __________________________________________________ ‰ Orange __________________________________________________ ‰ Red-orange ‰ Flue gas oxygen range 5.5% ±1.0 at 100% and low fire ‰ Flue gas CO ppm 0-60 ppm typical, 400 ppm max allowable LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 76: Maintenance

    Maintaining your humidifier tank and primary heat exchanger is critical to not covered by your the operation of the LX series humidifier. Scale buildup on the humidifier heat DriSteem warranty. exchanger acts as an insulator, reducing humidifier output while increasing Total hardness energy costs.

  • Page 77: Preparing For Maintenance

    98. Refer to the rating plate on the GTS humidifier for complete unit model number, serial number, and company address. Any substitution of parts or controls not approved by DriSteem will be at owner’s risk and will void the warranty.

  • Page 78: Inspection And Maintenance

    ANSI Z223.1 or applicable provisions of governing codes. troubleshooting information. Canadian installations must be installed in accordance with sections 7.2, 7.3, and 7.4 of the CAN/CGA.B149 Installation Codes and all authorities having jurisdiction. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 79: Seasonal Start-Up

    • Do not leave humidifier unattended. Allow the humidifier to cycle through multiple fill cycles and verify that the humidifier cover, cleanout plate, and probe holder gasket are not leaking. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 80: Mid-Season / End-Of-Season

    • Inspect blower motor for proper operation. • Remove dust — Using a vacuum, remove all dust from areas around the motor, vent fan(s), and louvers that allow air to the shrouded area. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 81: Mid-Season

    Prevent wiring errors • After confirming the plumbing connections are secure, perform a tank de- When servicing controls, before scaling procedure using the DriSteem GTS humidifier tank de-scaling kit. disconnecting, label all connections. Wiring errors can cause explosion or MID-SEASON fire, resulting in severe bodily injury, •...

  • Page 82: Burners

    Burners TUNING THE GAS VALVE • The LX series gas valve is factory-adjusted, although it must be checked, and adjusted if necessary, by a qualified gas appliance technician upon installation and annually thereafter. • The GTS LX gas valve has both high-fire (throttle screw) and low-fire (offset- screw) adjustments.
  • Page 83 Offset screw Low-fire adjustment Vacuum Throttle screw reference High-fire fitting adjustment LX-Valve-01 FIGURE 81-2: DETAIL OF GAS VALVE Top view Vacuum Throttle reference screw signal valve pressure diagnostic port valve power plug OM-7945 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 84 Throttle Screw - Number of Turns Out, Counter-clockwise (Turn = 360°) GTS LX-50, LX-75, LX-100 GTS LX-150 GTS LX-200 to LX-600 Natural Gas 9 - 11 11 - 12 4 - 5 Propane 3 - 5 5 - 7 2 - 3 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 85 O2% to the target b. If O2% is below target, slowly turn the throttle screw in, clockwise, to reduce fuel and increase O2% to the target. 7. High-fire gas valve tuning is complete. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 86 5. Re-install the diagnostic cap into the flue vent adapter or rubber plugs into the secondary heat exchangers. Table 84-1: Output % target by LX Model for Low-Fire Gas Valve Tuning Model LX-50 LX-75 LX-100 LX-150 LX-200 LX-250 LX-300 LX-400 LX-500 LX-600 Output % LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 87: Maintenance Frequency

    7. Reinstall the combustion assembly with the new gasket. 8. Reconnect all electrical wiring, intake venting, pressure switches, and gas supply lines. Note: To ease reassembly, disconnect components from one burner assembly at a time, and clean each individually. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 88: Burner Maintenance Instructions

    #8-32 nuts. 6. Reconnect flame sensor wire, ignition wire and enhanced spark ignition to the gas line. 7. Replace shroud. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 89: Removing The Heat Exchangers

    6. Remove eight bolts and nuts from the flange at the secondary heat exchanger(s) flue gas outlet. 7. Remove the four nuts from the bracket securing the secondary heat exchanger(s) to the primary tank, and allow it to drop free from the plastic flue adapter. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 90: Troubleshooting

    Confirm adequate water pressure and flow. Debris in drain valve blocking Remove drain block plug and clean debris from drain valve. Humidifier will outlet port not drain. Malfunctioning drain valve Check valve function using Test mode. Continued LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 91 Contact factory. MODEL LX TROUBLESHOOTING DriSteem Technical Support Follow the procedure below to resolve issues with LX series humidifiers: Have the following information ready when calling Technical Support. See phone number 1. Review possible causes and recommended actions in the Troubleshooting inside front cover of this manual.

  • Page 92: Replacement Parts

    GTS humidifier (Models LX-50 through LX-150) FIGURE 90-1: GTS HUMIDIFIER LX SERIES REPLACEMENT PARTS (MODELS LX-50 THROUGH LX-150) OM-7966 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 93 GTS humidifier LX series (Models LX-50 through LX-150) Table 91-1: GTS humidifier LX series replacement parts (Models LX-50 through LX-150) No . Description Part no . No . Description Part no . LEFT BURNER SHROUD GTS LX 50-150 600273 TANK ASSY LX 50/75/100 304SST...

  • Page 94: Gts Humidifier (Models Lx-200, Lx-250, And Lx-300)

    GTS humidifier (Models LX-200, LX-250, and LX-300) FIGURE 92-1: GTS REPLACEMENT PARTS (MODELS LX-200 THROUGH LX-300) OM-8015 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 95 GTS humidifier LX series (Models LX-200, LX-250, and LX-300) Table 93-1: GTS replacement parts for Models LX-200 through LX-300) No . Description Part no . No . Description Part no . LEFT BURNER SHROUD GTS LX 200-300 600172 CLEANOUT PLATE LX 200-600 304 SST...

  • Page 96: Gts Humidifier (Models Lx-400 Through Lx-600)

    GTS humidifier (Models LX-400 through LX-600) FIGURE 94-1: GTS REPLACEMENT PARTS (MODELS LX-400 THROUGH LX-600) OM-7999 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 97 GTS humidifier LX series (Models LX-400 through LX-600) Table 95-1: GTS replacement parts for Models LX-400 through LX-600) No . Description Part no . No . Description Part no . LEFT BURNER SHROUD GTS LX 400-600 600149 GTS BURNER ASSY LX 200-600...

  • Page 98: Electrical Parts

    Electrical parts FIGURE 96-1: GTS ELECTRICAL REPLACEMENT PARTS OM-7968 Note: See Pages 98 and 99 for GTS Outdoor Enclosure replacement parts. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 99 10 RELAY 24V DPDT FINDER 407900-016 11 BREAKER CIRCUIT 2A 480V 1POLE CG D-CURVE (EUROPEAN) 406775-207 12 BREAKER CIRCUIT 6A 480V 1POLE CG D-CURVE (EUROPEAN) 406775-212 13 BREAKER CIRCUIT 4A 480V 1POLE CG D-CURVE (SDU OPTION) 406775-209 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 100: Outdoor Enclosure

    Outdoor enclosure FIGURE 98-1: OUTDOOR ENCLOSURE ELECTRICAL REPLACEMENT PARTS OM-7969 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 101 BREAKER CIRCUIT 4A 480V 2POLE CG D-CURVE 406775-204 DUAL THERMOSTAT FOR OE 600293 HEATER O.E. 120V 400W GTS LX* 600390 HEATER O.E. 230V 400W GTS LX* 600390-001 *QTY 2 REQUIRED FOR LX-400 - LX-600 LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 102: European Models

    LX-400 11.27 m 13.76 m 11.27-13.76 m 6.39 m 7.27 m LX-500 14.09 m 17.20 m 14.09-17.20 m 7.99 m 9.09 m LX-600 16.63 m 20.30 m 16.63-20.30 m 9.43 m 10.73 m LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 103 DN100 (4") BSP/flange DN150 (6") * Maximum steam capacities listed may be as much as 10% lower than the given values due to local variations in the Wobbe index of G20 and G25 gases. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 104 30, 37 or 50 mbar for propane gas (depending on gas group) PMS (ALL UNITS) 7.0 bar ELECTRIC SUPPLY 230V, 667W to 2415W (see data plate) INLET WATER TEMPERATURE See Table 29-1. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 105 Inlet air minimum = -112 Pa • 25 m/s maximum allowable draught • Condensate return into the humidifier is allowed but should be minimized. • Maximum allowable recirculation rate of 10% under worst case wind conditions. LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 106 Notes LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 107 Notes LX SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 108: Warranty

    DriSteem has U.S. Headquarters: notice of the possibility of such damages.

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