IMPORTANT: Read and save these instructions. GT S ® Ga s-to-S te a m H umidi fi e r Ins tal l ati o n, Op eration , and Mai ntenance Man u al WARNING! 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 vapors and liquids in the vicinity of this or any other appliance. If you smell gas: • Do not try to light any appliance.
ATTENTION INSTALLER Read this manual before installing. Leave manual with product owner. I m p o r t a n t : Troubleshooting information for this humidifier is located in the Vapor-logic4 Installation and Operation manual shipped with your humidifier. If you do not have this manual, go to the literature section at www.dristeem.com to download or order a copy.
Ta b l e o f c o n t e n t s Overview Safety precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications, capacities, and weights . . . . . . . . . . . . . . . . . . . . . Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Location and clearance recommendations . . . . . . . . . . . . . . . .
Overview Safety precautions WARNING! The humidifier must be installed by a qualified technician and meet the requirements of all governing codes. Failure to follow these instructions could cause severe bodily injury or death. WARNING! If you do not follow the instructions in this manual exactly, a fire or explosion may result causing property damage, personal injury or loss of life. For your safety, read this entire manual before installing or operating the GTS humidifier. A.
Overview Safety precautions Safe operating instructions To turn off gas to appliance 1. 1. Set the humidistat to lowest setting. STOP! Read the safety information on the previous page. 2. Set the humidistat to lowest setting. 2. Turn off all electric power to the appliance if service is to be performed. 3. Turn off all electric power to the appliance. 3. Remove control access panel. 4. This appliance is equipped with an ignition device that automatically lights the burner.
Overview Safety precautions WARNING! Carbon monoxide, fire, explosion, and electrical shock hazards. Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poisoning, fire, explosion, electrical shock, and other hazardous conditions. These hazardous conditions could cause personal injury, property damage, or death.
Overview Safety precautions WARNING! • Installation must conform 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: Local plumbing or waste water codes and other applicable codes and with the current code CAN/CGA-B149.1, “Installation Code for Natural Gas Burning Appliances and Equipment,” or CAN/CGA-B149.
Overview Product overview Figure 6-1: GTS standard water model VLC Optional Ultra-sorb dispersion panel installed in duct Vapor hose Steam outlet Water level probe Water supply line Heat exchanger Flue box Blower Gas valve Control components Drain valve OM-1247 Notes: GTS standard water models • GTS standard water models can be converted in the field for use with deionized/reverse osmosis (DI/RO) water. GTS-DI models can be converted in the field for use with potable or softened water.
Overview Product overview Figure 7-1: GTS-DI (DI/RO water model) Float for water fill valve Steam outlet Water supply line Flue connection Redundant low water cutoff sensor Blower Float-operated low water cutoff Gas valve Overflow outlet Drain valve Air gap Drain piping Open drain Note: Dashed lines indicate supplied by installer OM-1248 GTS-DI models Notes: GTS-DI humidifiers burn either natural or propane gas to heat deionized (DI) or reverse osmosis (RO) fill water into steam for humidificati
Overview Specifications, capacities, and weights Table 8-1: GTS specifications, capacities, and weights for North American models only Maximum steam capacity GTS model Water usage at maximum capacity** Input GTS Tank volume GTS with outdoor enclosure Operating weight Shipping weight Operating weight Shipping weight Full load amps* lbs/hr kg/h MBh kW m3/h gals/ hr litres/ hr gals litres lbs kg lbs kg lbs kg lbs kg 120 V 60 Hz 230 V 50 Hz GTS-100 75 34 100 29 2.76 9 34.
Overview Dimensions Figure 9-1: Dimensions Top view Front view Side view G H F C 5" (127 mm) J D L M B E K A OM-1203 Table 9-1: Dimensions GTS-100 GTS-200 Description GTS-300 GTS-400 GTS-500 GTS-600 GTS-700 GTS-800 inches mm inches mm inches mm inches mm A Overall length 54.35 1380 54.35 1380 54.35 1380 54.35 1380 B Overall width 26.38 670 32.38 822 42.38 1076 48.38 1229 C Shroud height 41.00 1040 41.00 1040 41.00 1040 41.00 1040 18.00 457 17.
Installation Location and clearance recommendations Locating the humidifier • Provide a level, solid foundation for the humidifier. • Locate the humidifier as near as possible to a chimney or outside wall so that the flue pipe from the humidifier is short and direct. • Locate the unit so it and its electrical components are protected from water during humidifier operation and service. • Install the humidifier in a location away (and protected) from drafts.
Installation Outdoor enclosure mounting Outdoor enclosure mounting option The outdoor enclosure option is used when the GTS is installed outdoors. The following information is not intended to supersede any requirements of federal, state, or governing codes having jurisdiction; prior to locating the unit, authorities having jurisdiction should be consulted.
Installation Outdoor enclosure mounting Handling The GTS outdoor enclosure must be lifted from the bottom base in a fashion that holds it level and keeps it from tipping, falling, or twisting. If the unit is severely twisted during handling, permanent damage can occur. It is the installer’s responsibility to verify the handling equipment’s capability to safely handle the unit. Lift the outdoor enclosure by using special lifting lug hooks installed on the unit.
Installation Outdoor enclosure mounting Location • The GTS outdoor enclosure must be level and located so there is enough clearance for opening the access panels. • Verify that the position of pad or curb properly supports the unit and that support structure dimensions coincide with unit dimensions. • Do not locate unit in areas where the surrounding air has high levels of particulates, such as some industrial parks or areas near highways.
Installation Outdoor enclosure mounting Before you begin • Prior to installing the unit, remove all packaging. • During the transit, unloading, and setting of the unit, bolts and nuts may become loose. Check that all nuts are tightened as required. • There are three knockouts located on the right and left side of the enclosure. DRI-STEEM recommends running electrical power into the enclosure at these knockouts.
Installation Outdoor enclosure mounting Figure 15-1: Outdoor enclosure installation detail Normally closed fill valve (by factory) Make-up water supply piping (by installer) (See Note 2) GTS humidifier in outdoor enclosure installed on roof top Disconnect (by installer); see Detail A Open to drain 120 V supply (230 V in Europe) Vent with check valve (by installer) Roof decking 120 V (230 V in Europe) from unit disconnect or other source (See Note 1) 120 V (230 V in Europe) N Detail A Drain line, min
Installation Outdoor enclosure mounting Figure 16-1: GTS outdoor enclosure with standard or optional steam outlet, elevation view Standard steam outlet Optional steam outlet Flue piping (by installer) Flue piping (by others) Steam outlet (See Note 1) Ventilation fans Combustion air intake 1½" (38 mm) knockouts 4" (102 mm) o.c. Ventilation fans GTS humidifier Pipe chase Emergency Power block drain Steam outlet (See Note 1) Combustion air intake GTS humidifier 1½" (38 mm) knockouts 4" (102 mm) o.
Installation Outdoor enclosure mounting Table 17-1: Outdoor enclosure dimensions GTS-100 GTS-200 Description GTS-300 GTS-400 GTS-500 GTS-600 GTS-700 GTS-800 inches mm inches mm inches mm inches mm A Enclosure height 54.63 1388 54.63 1388 54.63 1388 54.63 1388 B Enclosure width 26.00 660 32.00 813 42.00 1067 48.00 1219 C Enclosure length 57.25 1454 57.25 1454 57.25 1454 57.
Installation Outdoor enclosure operation GTS outdoor enclosure sequence of operation • Power is applied to the outdoor enclosure. • If the ambient temperature in the enclosure is below 50 °F (10 °C), the strip heaters are powered up. If the enclosure temperature reaches 35 °F (2 °C), power is allowed to the GTS subpanel and the GTS unit is enabled.
Installation Wiring: Electrical connections WARNING! WARNING! Installation must meet the requirements of governing codes or, in the absence of governing codes, in accordance with the National Electrical Code, ANSI/NFPA 70, or Canadian Electrical Code, CSA C22.1, or IEE wiring regulations (BS7671). The electrical subpanel must have an uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur.
Installation Piping: Standard water models Figure 20-1: Field piping overview for GTS standard water models Optional condensate return piping from dispersion unit; ¾" pipe thread (DN20) fitting at humidifier Steam hose, pipe or tubing Shock arrester recommended to reduce water hammer, by installer Install level Flue size per governing codes. Do not reduce.
Installation Piping: DI/RO water models ’Figure 21-1: Field piping overview for GTS DI/RO water models Steam hose, pipe or tubing Optional condensate return piping from dispersion unit; ¾" pipe thread (DN20) fitting at humidifier Install level Flue size per governing codes. Do not reduce.
Installation Piping: Supply water and drain overflow connections Supply water and drain overflow connections Regardless of the type of water used, the following general instructions MUST be followed: • Make union connections at the humidifier on the make-up water supply and drain/overflow lines. • Provide a shutoff valve in the supply water line to isolate the humidifier from the water system while servicing. • Shock arrester, provided by installer, is recommended to reduce water hammer.
Installation Piping: Wa t e r s u p p l y p i p i n g Water supply piping general instructions The GTS humidifier has a 1" (25 mm) internal air gap to prevent back siphoning into a potable water system. However, some governing codes may require additional protection such as a vacuum breaker or backflow preventer. The supply water pressure range must be 25 psi to 80 psi (172 kPa to 552 kPa). When nonmetallic water piping is used, it must be rated to withstand 212 °F (100 °C) or greater temperature.
Installation Piping: Wa t e r s u p p l y p i p i n g I m p o r t a n t : Damage caused by chloride corrosion is not covered by your DRI-STEEM warranty. GTS-DI water supply piping GTS-DI models control water level with a float valve, and have a 3/8" pipe thread (DN10) connection. For DI models with the end-of-season drain option, a solenoid valve is installed prior to the float valve.
Installation Piping: Drain piping The drain line piped from the humidifier must be run to an approved sanitary waste or suitable drain. Although the GTS humidifier is equipped with integral water tempering, if nonmetallic drain pipe or hose is used, DRI-STEEM recommends it be rated for 212 °F (100 °C) minimum continuous operating temperature. Minimum drain pipe size is 1½" (DN40) inside diameter. Do not reduce the size of the drain piping.
Installation Piping: Gas piping W A R N I N G ! Supply the humidifier only with the gas type (natural gas or LP gas) listed on the humidifier name plate or burner failure or a fire may result causing property damage, personal injury, or loss of life. To convert the humidifier to natural gas or LP gas, contact DRI-STEEM technical support or your DRI-STEEM representative/ distributor.
Installation Piping: Gas piping “Installation Code for Natural Gas Burning Appliances and Equipment,” or CAN/CGA-B149.2, “Installation Code for Propane Burning Appliances and Equipment.” In Europe: The National Gas Safety (Installation & Use) Regulations. • Do not use flexible connectors. • Piping to units should conform with local and national requirements for type, volume, and gas handled and for pressure drop allowed in the line.
Installation Piping: Gas piping Gas leak testing Example • When leak-testing the gas supply piping system, disconnect the humidifier and its gas shutoff valve during any pressure in excess of 24" wc (6 kPa). Isolate the humidifier from the gas supply piping system by closing its field-installed manual shutoff valve during any pressure not equal to 24" wc (6 kPa). For this example, refer to the tables on the previous page.
Installation Piping: Gas piping Figure 29-1: GTS gas piping GTS or GTS-DI models 100, 200 ½” pipe thread (DN15) piping Plugged test gauge connection Manual gas shutoff valve 3” (76 mm) min. OM-1236 Drip pocket GTS or GTS-DI models 300-800 See Table 22-1 for pipe size by model Gas manifold (by DRI-STEEM) Plugged test gauge connection Manual gas shutoff valve 3” (76 mm) min.
Installation Combustion and ventilation air WARNING! Air for combustion must not be contaminated by halogen compounds, which include fluoride, chloride, bromide, and iodide. These elements are found in aerosol sprays, detergents, bleaches, cleaning solvents, salts, air fresheners, and other household products. When the GTS is located in an environment with negative pressure or toxic air, it must have sealed combustion. Failure to follow these instructions could cause severe bodily injury or death.
Installation Combustion and ventilation air Sealed combustion The GTS supports sealed combustion using 4" (DN100) PVC or CPVC piping (see Figure 31-1). All GTS models have a single point connection to the blower below the humidifier shroud. When running PVC or CPVC piping for sealed combustion, the maximum allowable distance to the outdoor air source is 70' (21.3 m) including 7' (2.1 m) equivalent length for each elbow.
Installation Ve r t i c a l a n d h o r i z o n t a l v e n t i n g WARNING! The humidifier must be installed by a qualified technician and meet the requirements of all governing codes. Failure to follow these instructions could cause severe bodily injury or death. Note: For European models, contact your distributor for horizontal venting parts. Vertical and horizontal venting guidelines (stack connection) • The GTS is a Fan Assisted Category I (natural draft) Appliance.
Installation Ve r t i c a l a n d h o r i z o n t a l v e n t i n g • Never connect this humidifier to a chimney serving a fireplace, unless the fireplace opening is permanently sealed off. • Code prohibits venting into an unlined masonry or concrete chimney. • If this humidifier is connected to a lined, masonry chimney, the chimney must be sized and installed according to the provisions of the National Fuel Gas Code or Canadian CAN/CGA.B149 requirements, or governing codes.
Installation Ve r t i c a l a n d h o r i z o n t a l v e n t i n g Special horizontal venting requirements Table 34-1: Equipment required for horizontal venting Field controls model number for GTS or GTS-DI models 100, 200, 300, 400 Field controls model number for GTS or GTS-DI models 500, 600, 700, and 800 PVO-600 (5") PVE-1200 (8") Barometric damper MG-1 (5") MG-1 (8") Vent hood SWH-1-5 (5") SWH-8 Electrical ratings 120 VAC 60 Hz 2.1 A 120 VAC 60 Hz 2.
Installation Dispersion: General instructions Selecting the dispersion assembly location • For each dispersion device, DRI-STEEM documents distances required for absorption to occur. If you have questions about absorption distances, see the absorption tables in the U.S. English version of the GTS catalog, available for viewing, printing, or ordering at www.dristeem.
Installation Dispersion: Interconnecting piping requirements WARNING! The evaporating chamber is designed as a non-pressurized vessel. DO NOT restrict piping where steam exits the humidifier. DO NOT install a shut-off valve on the piping connecting the evaporating chamber to the steam outlet. CAUTION! Failure to follow the recommendations in this section can result in excessive back pressures on the humidifier.
Installation Dispersion: Interconnecting piping requirements Connecting humidifier to dispersion assembly with tubing or pipe (continued) • Insulating hard pipe reduces the loss in output caused by condensation. • When using hard pipe, take care to remove ALL traces of lubricants used to thread the pipe. This minimizes the possibility of tank foaming. Denatured alcohol or mineral spirits work best for removing lubricant.
Installation Steam outlet connections Figure 38-1: Steam outlet connections Threaded pipe nipple Hose connection Support piping from above to prevent undue pressure on humidifier outlet. Allow for thermal expansion.
Installation Dispersion: Drip tee installation Install a drip tee as shown below • When the humidifier is mounted higher than the dispersion assembly • When interconnecting hose or piping needs to go over an obstruction • When interconnecting piping runs are long I m p o r t a n t : Vapor hose must be supported to prevent sagging or low spots.
Installation Dispersion: Single tube and multiple tube CAUTION! Failure to follow the recommendations in this section can result in excessive back pressures on the humidifier. This will result in unacceptable humidification system performance such as leaking gaskets, blown water seals, erratic water level control, and spitting condensate from the dispersion tube(s). Table 40-1: Hose kit sizing by capacity Maximum tube capacity lbs/hr kg/h 28.4 13 56.8 25.
Installation Dispersion: Single tube and multiple tube Table 41-1: Pitch of dispersion tube(s) and interconnecting piping for single tube or multiple tube evaporative dispersion units* Condensate drain Type of interconnecting piping Vapor hose Without drain Tubing or pipe Vapor hose With drain Diameter of dispersion tube and interconnecting piping 1½" (DN40) 2" (DN50) 1½" (DN40) 2" (DN50) 1½" (DN40) 2" (DN50) Pitch of interconnecting piping 2"/ft (15%) toward humidifier 1/8"/ft (1%) toward humidifier 2
Installation Dispersion: Single tube and multiple tube Figure 42-1: Single tube dispersion with condensate wasted to floor drain Maximum capacity of dispersion tube: • 1½" dia. (DN40): 56.8 lbs/hr (25.8 kg/h) • 2" dia. (DN50): 85.2 lbs/hr (38.6 kg/h) Duct Vapor hose, tubing or pipe. Insulate tubing and hard pipe to reduce steam loss. Do not insulate vapor hose.
Installation Dispersion: Single tube and multiple tube Figure 43-1: Single tube with condensate returned to humidifier Duct Vapor hose, tubing, or pipe Maximum capacity of dispersion tube: • 1½" dia. (DN40): 56.8 lbs/hr (25.8 kg/h) • 2" dia. (DN50): 85.2 lbs/hr (38.
Installation Dispersion: Single tube and multiple tube Figure 44-1: Multiple tubes with condensate wasted to floor drain Maximum capacity of dispersion tube: • 1½" dia. (DN40): 56.8 lbs/hr (25.8 kg/h) • 2" dia. (DN50): 85.2 lbs/hr (38.
Installation Dispersion: Rapid-sorb General Rapid-sorb installation instructions CAUTION! • Before you begin installation, read all dispersion instructions in this manual. • Before you begin installation, unpack shipment and verify receipt of all Rapid-sorb components with packing list. Report any shortages to DRI-STEEM factory immediately.
Installation Dispersion: Rapid-sorb Rapid-sorb pitch requirements • When installing Rapid-sorb with the header outside a horizontal airflow duct, consider the following pitch issues: – For 1½" (DN40) dispersion tubes, use a fastener of sufficient length to accommodate the 1/8"/ft (1%) pitch requirements toward the ¾" pipe thread (DN20) header drain fitting. – For 2" (DN50) dispersion tubes, the bracket can be mounted flush to the ductwork.
Installation Dispersion: Rapid-sorb Figure 47-1: Rapid-sorb installed in a horizontal airflow with header outside the duct Position L-bracket so that flange is upstream of dispersion tubes.
Installation Dispersion: Rapid-sorb Note: See Page 47 for steam supply and condensate drain line connection instructions. Assembly and installation instructions for a Rapid-sorb installed with header outside the duct (continued) 5. Before tightening the L-bracket bolts to the dispersion tubes follow these instructions: • For 1½" (DN40) dispersion tubes: – The dispersion tube will rotate in the slip coupling. Verify that the dispersion tube orifices are directed perpendicular to the airflow.
Installation Dispersion: Rapid-sorb Figure 49-1: Rapid-sorb installed in a horizontal airflow with header inside the duct Position L-bracket so that flange is upstream of dispersion tubes.
Installation Dispersion: Rapid-sorb Assembly and installation instructions for a Rapid-sorb installed with header inside the duct (continued) • Rotate the slip coupling as you push it on to the tubing. • The O-rings are lubricated at the factory. If additional lubrication is necessary, DO NOT use a petroleum-based lubricant. 5. Allow the dispersion tubes to rest against the bottom of the duct. 6.
Installation Dispersion: Rapid-sorb Steam supply connections to the Rapid-sorb header 1. Connect the steam supply interconnecting piping from the humidifier to the Rapid-sorb. The steam supply piping requires a minimum of 1/8"/ft (1%) pitch toward the header. 2. If multiple humidifiers are supplying one Rapid-sorb, a multiple steam supply connector is provided. • Typically, the multiple steam supply connector attaches to the Rapid-sorb header supply end with hose cuff and clamps.
Installation Dispersion: Area-type fan Table 52-1: Area-type electric fan specifications Motor 120 V, 50/60 Hz Blade diameter 18" (457 mm) Speeds 3 Control Rotary switch cfm (high speed) 5350 m3/s (high speed) 2.52 rpm (high speed) 1500 Amps (high speed) 1.52 Area-type™ fan dispersion The table on the following page lists the Area-type steam minimum rise, spread, and throw nonwetting dimensions. Surfaces or objects located within this minimum dimension can cause condensation and dripping.
Installation Dispersion: Area-type fan Table 53-1: Area-type (evaporative steam) minimum non-wetting distances* 60 °F (16 °C) Maximum steam capacity 30% RH Rise Spread 40% RH Throw Rise Spread 50% RH Throw Rise Spread Throw lbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m 50 20 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.5 0.8 6.0 1.8 75 34 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 4.0 1.2 8.0 2.
Operation Start-up procedure WARNING! Only qualified electrical and gas personnel should perform the start-up procedure. Note: The Vapor-logic4 Installation and Operation Manual is a comprehensive operation manual. Refer to it for information regarding the following features: • Keypad display setup and menu information • Control input signals and functions • Drain, flush, and skim features • Safety features • Alarm screens and fault messages The Vapor-logic4 manual was shipped with your humidifier.
Operation Start-up procedure 5. Verify that the humidifier tank is securely installed and level before filling with water (see the operating weights table in this manual). 6. Verify that the humidifier tank is level front to back and side to side after it is full of water. 7. Refer to the following sections in the Vapor-logic4 Installation and Operation Manual: • Operation section • Start-up checklist (it is critical that the installer follow this checklist) 8.
Operation Safety systems Safety systems The GTS humidifier has a number of systems and safeguards to ensure proper operation. • When there is a call for humidity, all of the combustion blowers must start. Each combustion blower sends a signal to the microprocessor relaying its current speed. If this actual speed is outside an acceptable range, the GTS will not operate.
Operation Start-up commissioning checklist Visit date_____________________________________ Job site representation: Model #______________________________________ __________________________________________________ Serial #______________________________________ __________________________________________________ Tag #________________________________________ __________________________________________________ I m p o r t a n t : Troubleshooting information for this humidifier is located in the Vapor-lo
Operation Start-up commissioning checklist Safety testing to verify function Low water test ______________________________ High humidity limit test _______________________ Airflow test ________________________________ Aquastat test _______________________________ Dispersion ☐ Ultra-sorb ☐ Rapid-sorb ☐ Single tube ☐ Single tube with drain ☐ Area-type fan Additional comments Condensate/drain piping Water seal height of dispersion system ______________________________ ☐ Air gap ☐ Condensate return to tank ☐
Maintenance GTS and GTS-DI models Both GTS and GTS-DI models Inspection recommendations: • User inspection every 30 days. • Appliance system inspected once a year by a qualified service person. mc_051408_1430 During inspection, verify the following: • Proper field operation of burner. Measure CO, CO2%, O2%, flue temperature, and burner efficiency at 100% demand with the tank at a boil. Verify that measurements are within the guidelines described in Table 59-1; if not, consult DRI-STEEM.
Maintenance GTS and GTS-DI models Note: Soot and carbon deposits may indicate a combustion problem that needs to be corrected. Consult the factory. • Remove loose deposits and residue that falls into rear header with a vacuum cleaner and hose extension. • Inspect 1½" (DN40) return tubes and clean if necessary. • Run thin brush between turbulator and tube wall on all four sides.
Maintenance GTS standard water models GTS standard water quality recommendations Humidifier De-scaling solution The best way to determine how often your particular system needs maintenance is to remove the probe plate and inspect it for mineral deposits after three months of duty. Potable water carries a variety of minerals and other materials in a mix that varies from location to location.
Maintenance GTS standard water models WARNING! When performing maintenance on the GTS humidifier, always change the control mode to Standby, place all power disconnects in OFF position and lock in OFF position, close the field installed manual water supply and gas shut-off valves. Failure to follow these instructions may cause severe bodily injury or death from electric shock. Cool down humidifier before beginning maintenance Before performing any maintenance, allow the tank to cool down.
Maintenance GTS standard water models Inspection and maintenance 1. Annually (also recommended when maintenance is performed) • Inspect tank, piping, and gaskets for water and gas leaks. • All safety devices in the control circuit should be cycled on and off to verify they are functioning. These include: – High limit switch – Airflow proving switch – Low water level probe. Pull out probe plug; fill valve should energize. – Redundant low water level probe 2.
Maintenance GTS standard water models WARNING! When performing maintenance on the GTS humidifier, always change the control mode to Standby, place all power disconnects in OFF position and lock in OFF position, close the field installed manual water supply and gas shut-off valves. Failure to follow these instructions may cause severe bodily injury or death from electric shock. Important: Minimum water supply pressure is 25 psi (172 kPa).
Maintenance GTS standard water models • When the maintenance requirements are complete: – Replace cleanout plate and tighten the nuts on the plate. Torque the nuts to 25 to 35 in-lb (2.8 to 4.0 N-m). – Verify that the probe rod holder is secure and that the probe plug and cable assembly are plugged into the probe rod holder. – Verify that the drain valve assembly is in the closed position. – Replace and secure all covers and doors. – Turn on the water supply. – Turn on the electrical power. – Turn on gas.
Maintenance GTS-DI models WARNING! When performing maintenance on the GTS humidifier, always change the control mode to Standby, place all power disconnects in OFF position and lock in OFF position, close the field installed manual water supply and gas shut-off valves. Failure to follow these instructions may cause severe bodily injury or death from electric shock. GTS-DI models DI water quality recommendations • Verify regularly that water processing equipment is operating correctly.
Maintenance GTS-DI models Inspection 1. Annually (also recommended when maintenance is performed) • All safety devices in the control circuit should be cycled on and off to verify they are functioning. These include: – High limit switch – Airflow proving switch – Low water cutoff switch – Redundant low water cutoff switch • Inspect tank and gaskets for leaks. • Verify that the float valve is closing off.
Replacement parts GTS humidifier •Figure 68-1: GTS replacement parts OM-1243 Page 68 • DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual
Replacement parts GTS humidifier Table 69-1: GTS replacement parts No. Description Part no. No. Description Part no.
Replacement parts Fill, drain, and blocked flue •Figure 70-1: GTS fill, drain, and blocked flue replacement parts OM-1244 Page 70 • DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual
Replacement parts Fill, drain, and blocked flue Table 71-1: GTS fill, drain, and blocked flue replacement parts No. Description Part no.
Replacement parts Electrical parts Figure 72-1: GTS electrical replacement parts Note: See Page 74 for GTS Outdoor Enclosure parts.
Replacement parts Electrical parts Table 73-1: GTS electrical replacement parts No. Description Part no.
Replacement parts Outdoor enclosure Figure 74-1: Outdoor enclosure electrical replacement parts Not shown Note: For European models, refer to Fisair diagrams Page 74 • DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual OM-7471
Replacement parts Outdoor enclosure Table 75-1: Outdoor enclosure electrical replacement parts No. 1 Description Part no.
European models Information for European models only Electrical warning label This equipment has been tested by the Canadian Standards Association International to the Low Voltage, Gas Appliance, and EMC directives and has been certified by AFNOR for use in all EU countries. Location: Control cover, shroud Definition: Electrical shock hazard Authorized countries of destination Important: The GTS and GTS-DI humidifiers bearing the CE mark are authorized for use in the European countries listed below.
European models Information for European models only Table 77-1: GTS specifications, capacities, and weights for European models Model number Steam capacity per hour in kg* P = (kW) Q = (kW) Steam outlet Recommended flue size (Class B) Operating weight in kg Shipping weight in kg Full load amps GTS-100 34 0-24 0-29 DN50 (2") BSPT or DN50 hose DN125 (5") 320 170 2.8 GTS-200 68 0-48 0-59 DN50 (2") BSPT or DN50 hose DN125 (5") 320 170 2.
Warranty Expect quality from the industry leader Two-year Limited Warranty For more than 40 years, DRI-STEEM has been leading the industry with creative and reliable humidification solutions. Our focus on quality is evident in the construction of the GTS, which features cleanable, stainless steel construction, and an industry-leading Two-year Limited Warranty.
