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GTS

®

Gas-to-Steam Humidifier   
LX Series

Installation, Operation,  

and Maintenance Manual

READ AND SAVE THESE INSTRUCTIONS

 

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

 

Summary of Contents for GTS LX Series

Page 1: ...ammable 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 Im...

Page 2: ......

Page 3: ...er Read this manual before installing and leave this manual with product owner This product must be installed by qualified HVAC and electrical contractors Installation must be code approved Improper i...

Page 4: ...shut off the manual gas valve to the appliance before shutting off the electrical supply The evaporating chamber is designed as a nonpressurized vessel DO NOT restrict piping where steam exits the hu...

Page 5: ...person responsible for their safety 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 venti...

Page 6: ...id severe burns follow the cool down procedure in this manual before performing service or maintenance procedures on any part of the system Disconnect electrical power Disconnect electrical power befo...

Page 7: ...can damage some drain plumbing The humidifier is equipped with integrated water drain tempering that needs make up water no greater than 90 F 32 C in order to function properly Make sure the water su...

Page 8: ...Optional wall mount Models 50 75 and 100 only 18 Outdoor enclosure 19 Overview 19 Operation 20 Dimensions 21 Location 22 Mounting 23 Freeze Protection Piping 25 Venting 26 Wiring 27 Piping 28 Overvie...

Page 9: ...Start up commissioning checklist 58 MAINTENANCE 60 Inspection recommendations 60 Replacement parts 61 Water quality and maintenance 62 Water quality recommendations 62 Cool down procedure 63 Inspectio...

Page 10: ...Steam outlet Control components Flue gas vent Duct dispersion option shown Ultra sorb Model LV OM 7942 Supply water guidelines Supply water quality is an important component of humidifier reliability...

Page 11: ...safety conditions Vapor logic automatically provides a steady output while maintaining the water level between the bottom and middle probes Supply water connection Control components Primary heat exc...

Page 12: ...changer Air gap Open drain Water level sensing probe Secondary heat exchanger Overflow outlet OM 7996 Gas valve Blower Note Dashed lines indicate supplied by installer FIGURE 10 1 GTS HUMIDIFIER LX SE...

Page 13: ...87 8 1 12 5 2 0 1 5 LX 150 150 68 183 53 6 5 1 18 68 25 95 450 204 242 110 6 1 25 2 5 2 0 LX 200 200 91 244 71 5 6 8 24 91 42 159 706 320 356 161 6 7 1 30 4 0 2 5 LX 250 250 113 305 89 4 8 5 30 114 4...

Page 14: ...nt view Top view OM 7946 H M O J SPECIFICATIONS FIGURE 12 1 LX MODELS 50 150 INDOOR UNIT DIMENSIONS P Q J T S R N FIGURE 12 2 LX MODELS 200 300 INDOOR UNIT DIMENSIONS See Indoor unit dimensions on pag...

Page 15: ...let position 3 8 97 3 8 97 7 1 180 7 178 H 5 3 135 5 3 135 6 9 175 7 4 188 J Steam outlet diameter 2 51 2 51 3 76 4 102 K Gas inlet position 9 2 234 9 2 234 16 6 4022 16 6 422 L 4 6 119 4 6 119 14 3 3...

Page 16: ...ng combustion and ventilation air Locate the humidifier in an area where leakage from the tank or its connections will not result in damage to the adjacent structure or to lower floors of the structur...

Page 17: ...or LX 50 through LX 150 54 1372 mm for LX 200 through LX 600 FIGURE 15 1 LX SERIES CLEARANCE RECOMMENDATIONS INDOOR UNITS OM 7947 36 914 mm 1 25 mm Indoor Unit Outdoor Unit FIGURE 15 2 LX SERIES CLEAR...

Page 18: ...w 4 Use the lifting hole on the base of humidifier to carefully lift it off the ground See Warning below 5 Slowly lower the humidifier on the floor stand 6 Secure the base of the humidifier to the flo...

Page 19: ...7 1 LX SERIES WITH FLOOR STAND MOUNT MODELS 50 75 AND 100 See Indoor unit dimensions on page 13 1 B OM 7970 INSTALLATION Optional floor stand mount Models 50 75 100 and 150 only C OM 8021 A 21 125 537...

Page 20: ...TION AND MAINTENANCE MANUAL INSTALLATION Optional wall mount Models 50 75 and 100 only OM 7993 22 88 581 mm FIGURE 18 1 LX SERIES WITH WALL MOUNT See Indoor unit dimensions on page 13 1 OM 7992 24 63...

Page 21: ...front of the unit if the chase cannot be used Combustion air is drawn from within the enclosure and flue gas is vented out the back of the enclosure An emergency drain is provided on the front of the...

Page 22: ...ld to be from 50 180 F 10 82 C If for any reason the tank temperature falls below 40 F 4 C the tank will drain to keep the unit from freezing When the temperature of the enclosure reaches 85 F 29 C th...

Page 23: ...LX 300 LX 400 LX 500 LX 600 inches mm inches mm inches mm inches mm A Enclosure length 36 914 4 45 1143 57 35 1456 59 57 35 1456 59 B Enclosure width 27 35 694 7 27 35 694 7 27 35 694 69 39 10 993 04...

Page 24: ...eas near highways In situations such as these you will need to filter the air inlets The unit should be located so prevailing winds do not blow into the air intakes When located on the roof the air in...

Page 25: ...base surface of the unit to prevent moisture from leaking into the building from either driving rain or melting snow Prior to installation remove all of the unit packaging The GTS outdoor enclosure mu...

Page 26: ...upply water piping inside the unit to avoid dripping from condensation For cold climates see Freeze Protection Piping on Page 25 INSTALLATION Outdoor enclosure Piping FIGURE 24 1 GTS OUTDOOR ENCLOSURE...

Page 27: ...itional valves upstream of the fill valve in a conditioned space Power these valves on the same circuit as the GTS if the power goes off water drains out of the fill line to prevent freezing see above...

Page 28: ...TION Outdoor enclosure Venting Table 26 1 Outdoor unit amps and weights Model Full Load Amps Heater Package Full Load Amps No Heater Package Operating weight Shipping empty weight 120V 60 Hz 230V 50Hz...

Page 29: ...2 5 mm2 wire for 120 V line voltage with BLACK WIRE for HOT WHITE WIRE for NEUTRAL GREEN AND YELLOW WIRE for GROUND Units with Outdoor Enclosure must use AWG 12 4 mm2 for 120 V line voltage Use 18 ga...

Page 30: ...additional backflow prevention installation install at a minimum of 40 12 m from the humidifier Damage caused by chloride corrosion is not covered by your DriSteem warranty OM 7952 Flue gas vent Gas i...

Page 31: ...ional backflow prevention installation install at a minimum of 40 12 m from the humidifier Damage caused by chloride corrosion is not covered by your DriSteem warranty OM 7997 Flue gas vent Gas inlet...

Page 32: ...1 2 pipe thread bottom 10 15 Drain 1 drain block 25 1 drain block 25 1 drain block 25 1 drain block 25 Steam outlet 2 all steam hose pipe thread 50 2 all steam hose pipe thread 50 3 all steam flange...

Page 33: ...LX SERIES CONDENSATE RETURN FIELD PIPING MODELS LX 50 THROUGH LX 150 OM 8001 Condensate return Use union for cleanout plate removal Optional condensate return piping from dispersion unit pipe thread D...

Page 34: ...1 LX SERIES CONDENSATE RETURN FIELD PIPING MODELS LX 200 THROUGH LX 600 OM 8000 Condensate return Manual drain valve if required Optional condensate return piping from dispersion unit pipe thread DN2...

Page 35: ...ank and to the secondary heat exchanger The water provided to the tank is also used for tempering drain water Make union connections at the humidifier on the make up water supply and drain overflow li...

Page 36: ...ge 8 Table 34 2 Water tempering specifications for optional Drain kooler water tempering device Water type Maximum Flow rate Maximum temperature U S gpm L m F C Hot water inflow 6 22 7 212 100 Cold wa...

Page 37: ...reater than 12 305 mm 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 component...

Page 38: ...ld be damaging to surrounding surfaces and articles Prime the condensate p trap at the base of the secondary heat exchanger FIGURE 36 1 GTS SEALED COMBUSTION CONNECTION MODELS LX 50 THROUGH LX 150 OM...

Page 39: ...ic condensate 2 All tubing must allow flow away for humidifier to condensate neutralizer if equipped 3 Condensate neutralizer should be installed per manufacturer instructions below the condensate p t...

Page 40: ...m to the requirements of the authority having jurisdiction or in the absence of such requirements must conform to In the United States The National Fuel Gas Code ANSI Z223 1 latest edition In Canada L...

Page 41: ...piping in ft3 hr and m3 hr at pressure drop of 0 3 wc 0 07 kPa Specific gravity 0 60 Nominal iron pipe diameter in inches DN 1 2 DN15 3 4 DN20 1 DN25 1 DN32 1 DN40 ft m ft3 hr m3 hr ft3 hr m3 hr ft3 h...

Page 42: ...4 which you multiply by the 390 ft3 hr 11 05 m3 hr value This gives you a new value of 406 ft3 hr 11 49 m3 hr Referring again to Table 39 2 you see that for the same 60 ft 18 m length you now need to...

Page 43: ...LLATION OPERATION AND MAINTENANCE MANUAL OM 7953 All Models Drip pocket 3 76 mm min Plugged test gauge connection See page 30 for connection sizes Manual gas shutoff valve INSTALLATION Gas continued P...

Page 44: ...cted combustion air Location description Required air opening Confined space with all air from inside the building conventional frame brick or stone construction with normal infiltration Note this loc...

Page 45: ...The following types of installation may require OUTDOOR AIR for combustion due to chemical exposures Commercial buildings Buildings with indoor pools Furnaces installed in laundry rooms Furnaces insta...

Page 46: ...203 mm Flue gas condensate CAUTION Flue condensate removal For Models LX 50 LX 300 only Install a drip tee within the first 3 1 m of flue venting for flue condensate removal Failure to follow these i...

Page 47: ...General venting continued INSTALLATION FIGURE 45 1 ROOM AIR COMBUSTION FOR THE LX 400 LX 500 AND LX 600 OM 8020 Flue gas vent to outside Quantity of two 90 elbows See Table 48 for vent size Bird scre...

Page 48: ...e mesh screen to prevent the introduction of unwanted materials without restricting airflow If sealed combustion piping passes through warm conditioned space insulate piping to prevent condensation WA...

Page 49: ...eral venting continued Note For European models contact your distributor for horizontal venting parts INSTALLATION WARNING Installation requirements The humidifier must be installed by a qualified tec...

Page 50: ...this manual Install vent piping as direct as possible with a minimum number of turns or elbows For Models LX 50 LX 300 only Install a drip tee within the first 3 1 m of flue venting for flue condensa...

Page 51: ...as outlet and combustion air inlet adapters accept PVC CPVC Polypropylene and stainless steel piping Flue vent adapters if used must be installed vertically at the point of connection to the GTS humid...

Page 52: ...with the proper clearances from combustible material according to the National Fuel Gas Code Canadian Standards CAN CGA B149 the National Gas Safety Code Installation Use Regulations latest revision o...

Page 53: ...p 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 See Figure 46 1 Required distance between air...

Page 54: ...dings when terminating the vent and air Position the vent where vapors will not damage nearby shrubs plants or air conditioning equipment or be objectionable The flue will form a noticeable plume as i...

Page 55: ...th exposed to the outside could cause freezing of condensate in the vent pipe resulting in potential humidifier shutdown Sidewall venting continued INSTALLATION OM 7980 Bird screen Flue gas vent Bird...

Page 56: ...recirculation of flue products into the combustion air stream The flue gas vent piping may terminate in an elbow pointed outward or away from the air inlet at least 12 305 mm above the combustion air...

Page 57: ...general the dispersion assembly is best placed where the air can most readily absorb the moisture being added without causing condensation at or after the unit This normally is after the heating coil...

Page 58: ...ify that all piping connections have been completed as recommended and that water pressure is available Electrical Verify that all wiring connections have been made in accordance with all governing co...

Page 59: ...atio of air and gas throughout the operating range of the blower If the flue becomes blocked or the blower fails to run the blocked flue sensor will shut down the humidifier During operation the water...

Page 60: ..._______________________________________________ ________________________________________________________ Job name________________________________________________ Program code__________________________...

Page 61: ..._______________________ __________________________________________________ __________________________________________________ __________________________________________________ _______________________...

Page 62: ...me is sensed 5 Burner stays on visual flame glow Table 60 1 GTS products of combustion guidelines at 100 demand CO Must be less than 400 ppm 0 60 ppm typical CO2 8 9 is typical for natural gas 9 10 is...

Page 63: ...without holes or excessive corrosion Physical support of the appliance is sound without sagging cracks or gaps between floor stand or tank flanges Adequate combustion and ventilation air in accordance...

Page 64: ...aning frequency determined by use and water quality More frequent skimming and draining Periodic drain and flush cycles Softened water dramatically reduces mineral accumulation Note Solids like silica...

Page 65: ...th the additional cool water 4 When the fill valve closes go back into Drain mode and allow the tank to drain completely The humidifier should be cool enough to work on Note For more information about...

Page 66: ...d in the tank Do this before the scale buildup reaches the bottom of the heat exchanger Inspect the area inside the tank in front of the drain valve fitting and thoroughly clean all scale and mineral...

Page 67: ...the maintenance requirements are complete Replace cleanout plate and tighten the nuts on the plate Torque the nuts to 60 in lb 6 8 N m Note Always install a new gasket when the clean out plate is rea...

Page 68: ...m complete inspection and cleaning of the following Probe rods Skimmer port and water seal Humidifier tank Primary heat exchanger see page 67 for instructions Drain humidifier tank and rinse Perform a...

Page 69: ...hanger 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 MAINTENANCE Inspect...

Page 70: ...with the new gasket 7 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 e...

Page 71: ...rix pushing them back inside the burner Avoid blowing air across the surface which tends to have a destructive effect on the burner surface Allow particulate matter to fall from the burner through the...

Page 72: ...FIER LX SERIES INSTALLATION OPERATION AND MAINTENANCE MANUAL GTS humidifier Models LX 50 through LX 150 OM 7966 REPLACEMENT PARTS FIGURE 70 1 GTS HUMIDIFIER LX SERIES REPLACEMENT PARTS MODELS LX 50 TH...

Page 73: ...GE 5 TO 3 WELD 161145 001 19 IGNITION CONTROL 24VAC SPARK 405811 001 10 SEC HX ASSY GTS LX 50 75 100 INDOOR 600375 001 20 VALVE 3 4 NPT SST NC 505077 001 SEC HX ASSY GTS LX 50 75 100 OUTDOOR 600375 00...

Page 74: ...S HUMIDIFIER LX SERIES INSTALLATION OPERATION AND MAINTENANCE MANUAL GTS humidifier Models LX 200 LX 250 and LX 300 REPLACEMENT PARTS FIGURE 72 1 GTS REPLACEMENT PARTS MODELS LX 200 THROUGH LX 300 OM...

Page 75: ...00199 100 26 DRAIN 3 4 INDOOR ASSY LX 184325 001 DRAIN MANIFOLD ASSY GTS LX EURO 600199 101 27 MANIFOLD BLOCK FILL 3 8 INDOOR ASSY NPT 184330 001 12 BLOWER ASSY GTS LX 200 600 120V 400092 200 MANIFOLD...

Page 76: ...GTS HUMIDIFIER LX SERIES INSTALLATION OPERATION AND MAINTENANCE MANUAL GTS humidifier Models LX 400 through LX 600 REPLACEMENT PARTS FIGURE 74 1 GTS REPLACEMENT PARTS MODELS LX 400 THROUGH LX 600 OM 7...

Page 77: ...ANIFOLD BLOCK FILL 3 8 OUTDOOR ASSY BSP 184330 012 DRAIN MANIFOLD ASSY GTS LX EURO 600199 101 33 ADAPTER 3 TO 1 DURO VENT 6 305394 006 12 BLOWER ASSY GTS LX 200 600 120V 400092 200 34 SUB PANEL ASSY G...

Page 78: ...ER LX SERIES INSTALLATION OPERATION AND MAINTENANCE MANUAL Electrical parts OM 7968 Note See Pages 78 and 79 for GTS Outdoor Enclosure replacement parts REPLACEMENT PARTS FIGURE 76 1 GTS ELECTRICAL RE...

Page 79: ...C 150VA EUROPEAN 408895 203 5 TRANSFORMER 230 400 115V SEC 150VA EUROPEAN 408985 202 6 FAN SQ 24V 36CFM 3 13 X 1 5 407115 7 TERMINAL 3 POSITION 10MM SPACING WECO SDU OPTION 530010 073 8 TERMINAL DIN R...

Page 80: ...78 GTS HUMIDIFIER LX SERIES INSTALLATION OPERATION AND MAINTENANCE MANUAL OM 7969 Outdoor enclosure REPLACEMENT PARTS FIGURE 78 1 OUTDOOR ENCLOSURE ELECTRICAL REPLACEMENT PARTS...

Page 81: ...120V 185110 003 FAN ASSY EURO CABINET 230V 185110 004 7 TERMINAL 3 POSITION 10MM SPACING WECO SDU OPTION 530010 073 8 TERMINAL DIN RAIL 20A CENTER 408252 001 9 SOCKET RELAY DPDT W OUT TIME DELAY 40790...

Page 82: ...G20 G25 natural gases and third family G30 G31 propane gas Contact your distributor before converting to another group or supply pressure Table 80 1 Gas specifications for European models Model GTS LX...

Page 83: ...cifications and weights European models GTS model Steam capacity per hour in kg P kW Q kW Steam outlet Recommended flue size Operating weight in kg Shipping weight in kg Full load amps LX 50 23 0 17 0...

Page 84: ...GAS All models operate at rated kW input OPERATING CHARACTERISTICS Unit is capable of operating in ambient conditions of 5 C to 40 C Unit is capable of operating in ambient conditions between 30 RH an...

Page 85: ...C6 BOILERS The terminals for the supply of combustion air and for the evacuation of combustion products shall not be installed on opposite walls of the building TYPE C6 BOILERS With all non certified...

Page 86: ...84 GTS HUMIDIFIER LX SERIES INSTALLATION OPERATION AND MAINTENANCE MANUAL Notes...

Page 87: ...85 GTS HUMIDIFIER LX SERIES INSTALLATION OPERATION AND MAINTENANCE MANUAL Notes...

Page 88: ...breach of warranty breach of contract negligence strict liability in tort or any other legal theory even if DriSteem has notice of the possibility of such damages By purchasing DriSteem s products th...

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