READ AND SAVE THESE INSTRUCTIONS ® HUMIDI-TECH and HUMIDI-TECH DI ELECTRIC STEAM HUMIDIFIERS HT models Installation, Operation and Maintenance Manual
TABLE OF CONTENTS To the purchaser and installer Thank you for purchasing our HUMIDI-TECH® humidifier. We have designed and built this equipment to give you complete satisfaction and trouble-free service for many years. Familiarizing yourself with this manual will help ensure proper operation of the equipment for years to come. This manual covers the installation and maintenance procedures for both the HUMIDI-TECH and HUMIDI-TECH DI humidifiers.
HUMIDI-TECH® HUMIDIFIER OVERVIEW Standard water models (HUMIDI-TECH) The standard water HUMIDI-TECH unit requires water conductivity of at least Electrical conduit 100 μS/cm to operate. It will not knockouts operate with water treated DN40 or DN50 flexible by reverse osmosis or vapor hose, pipe or deionization processes tubing connects to dispersion tube(s) (see DI water model below).
HUMIDI-TECH® DIMENSIONS Top view 614 mm 50 mm 50 mm 276 mm 25 mm 57 mm Power wiring knockout Control wiring knockout Steam outlet Front view Left side view Venting 472 mm 38 mm 57 mm 146 mm 409 mm DN20 (¾") frame drain DN20 (¾") tank drain Bottom view 13 mm hole in base for water fill line 19 mm 16 mm 57 mm Power wire knockout 38 mm Control wiring knockout 146 mm 614 mm DC-1167 4
HUMIDI-TECH® SPECIFICATIONS Electrical specifications, capacities and weights Three-phase 400 V Steam capacity kg/h I max. A Shipping weight kg 4 5.4 8.7* 36 44 HT-6 6 8.2 13.0* 40 56 HT-8 8 10.9 17.3* 40 56 HT-12 12 16.3 17.3 42 64 HT-16 16 21.8 23.1 42 64 HT-21 21 28.6 30.3 43 70 HT-25 25 34.0 36.1 43 70 HT-30 30 40.8 43.3 46 72 HT-34 34 46.3 49.1 46 72 Model number kW HT-4 Operating weight kg Table notes: All HUMIDI-TECHs operate at 50/60 Hz.
HUMIDI-TECH® MOUNTING AND PIPING Locating and mounting the humidifier HUMIDI-TECH piping The HUMIDI-TECH humidifier is designed to attach to the wall with coach screws, and it should be installed in a space located near an air duct system. Water makeup piping may be of any codeapproved material (copper, steel, or plastic). The final connection size is DN10 (3/8"). In cases where water hammer may be a possibility, a shock arrestor should be considered. Water pressure must be between 175 kPa and 550 kPa.
HUMIDI-TECH® PIPING HUMIDI-TECH (standard water) field piping overview DN10 (3/8") connection to water supply line; water pressure must be between 175 kPa and 550 kPa; water conductivity minimum 100 μS/cm Steam vapor hose (maximum run 3 m). May also use pipe or tubing. Two keyholes for wall mounting, 406 mm on center Unions by installer Install level Water supply line Shock arrester recommended to reduce water hammer DN20 (¾") tank drain, skimmer and P-trap piping, rated for 100°C.
HUMIDI-TECH® PIPING HUMIDI-TECH DI (deionized/reverse osmosis water) field piping overview Steam vapor hose (maximum run 3 m). May also use pipe or tubing.
HUMIDI-TECH® WIRING HUMIDI-TECH wiring Field wiring requirements All wiring must be in accordance with all governing codes, and with the HUMIDI-TECH® or HUMIDI-TECH DI wiring diagrams. The diagrams are located inside the removable subpanel cover on the right-hand side of the humidifier cabinet. Power supply wiring must be rated for 105°C. Fused disconnect (provided by installer) sized per tables on next page Refer to the maximum load (I max.
HUMIDI-TECH® DISPERSION Single tube without condensate drain Duct Single dispersion tube without condensate drain Interconnecting plumbing may be hose, tubing or hard pipe. Insulate tubing and hard pipe to reduce steam loss. HUMIDI-TECH humidifier Mounting nut M10 Pitch: 1% Secure and seal escutcheon plates 90° long sweep or two 45° elbows See the first note below. Tube pitch: 15% Dispersion tube escutcheon plates: DN40 DN50 82.5 mm 127 mm 82.
HUMIDI-TECH® DISPERSION Single tube with condensate drain Interconnecting plumbing may be hose, tubing or hard pipe. Insulate tubing and hard pipe to reduce steam loss. Single dispersion tube with condensate drain Duct Secure and seal escutcheon plates Pitch* Pitch: 1% 90° long sweep or two 45° elbows Mounting nut M10 Pitch: 2% See the first note below. 150 mm recommended DN8 (1/4" thread) DN15 (½" O.D.) condensate drain tube. Pitch 2% toward escutcheon plate.
HUMIDI-TECH® DISPERSION RAPID-SORB dispersion assembly Position L-bracket so that flange is upstream of dispersion tubes. Drawing shows L-bracket positioned for airflow back to front.
HUMIDI-TECH® DISPERSION Drip tee installation Maximum steam carrying capacity and length of interconnecting vapor hose, tubing and pipe* Install a drip tee as shown below when the humidifier is mounted higher than the dispersion device, when interconnecting hose or piping needs to go over an obstruction, or when interconnecting piping runs are long. IMPORTANT: Vapor hose must be supported to prevent sagging or low spots. Copper or stainless steel tubing and Schedule 40 steel pipe Vapor hose Hose I.D.
HUMIDI-TECH® START-UP AND OPERATION Introduction Electrical After the system has been properly installed and connected to both electrical and water supplies, it may be started. Verify electrical connections before start-up. Start-up and checkout procedures Mounting Check mounting to verify that the unit is level and securely supported before filling with water. Piping Verify that all piping connections have been completed as recommended and that water pressure is available.
HUMIDI-TECH® START-UP AND OPERATION VAPOR-LOGIC®3 control VAPOR-LOGIC3 is the standard controller for the HUMIDI-TECH. For more information regarding the operation of the VAPOR-LOGIC3 microprocessor, see the VAPOR-LOGIC3 Installation, Operation and Maintenance Manual. Control system start-up/checkout 1. Confirm that proper grounding and an approved earth ground are provided. 2. Confirm that the control signal connected to the VAPOR-LOGIC®3 system is compatible with the VAPOR-LOGIC3 program.
HUMIDI-TECH® MAINTENANCE The best way to determine how often your particular system will need maintenance is to remove the cover and inspect it after its first three months of duty. Potable water carries a variety of minerals and other materials in a mix that varies from location to location. This variation in water quality, combined with the hours of operation and duty cycle, will determine your own unique maintenance schedule. Water quality makes a difference 1.
HUMIDI-TECH® MAINTENANCE Standard water models (HUMIDI-TECH®, continued) Off-season shut-down procedure 1. Switch off electrical power. 2. Loosen the four cover bolts and remove the cover assembly from the tank. 3. Clean the tank interior using a putty knife or similar flat instrument. 4. Unplug probe plug assembly. Leave ground wire connected to tank. Unscrew the probe rod assembly and clean the plastic probe housing, ensuring that all passageways are clear.
HUMIDI-TECH® MAINTENANCE DI water models (HUMIDI-TECH® DI) The HUMIDI-TECH DI unit uses DI/RO water. Because these water types are mineral-free, cleaning the evaporating chamber should not be necessary. However, there are some maintenance steps that should be followed to ensure all parts of the unit are in working order To inspect and service 1. Remove the evaporating chamber. • Remove the two fasteners on each side of the cover enclosure. • Remove the enclosure.
HUMIDI-TECH® TROUBLESHOOTING GUIDE Troubleshooting guide for standard water models PROBLEM POSSIBLE CAUSE RECOMMENDED ACTION Incorrect or nonexistent supply voltage to unit Check main line safety switch. Check internal breaker. Check for proper supply voltage. Incorrect or nonexistent control voltage Reset control transformer circuit breaker. Check for 24 VAC control circuit voltage at T-1 and T-2 on the control board. Humidistat not calling Set humidistat to call. Inspect for faulty humidistat.
HUMIDI-TECH® TROUBLESHOOTING GUIDE Troubleshooting guide for DI water models PROBLEM Humidifier will not heat. Humidifier will not fill. Humidifier does not stop filling. Reduced or no output even though water is at the proper level 20 POSSIBLE CAUSE RECOMMENDED ACTION Control transformer Reset control transformer circuit breaker. Humidistat is not calling Set humidistat to call. Inspect for faulty humidistat.
HUMIDI-TECH® REPLACEMENT PARTS HUMIDI-TECH® standard water model HUMIDI-TECH DI model OM-778-1 Note: Refer to the tables on the next page for replacement part numbers.
HUMIDI-TECH® REPLACEMENT PARTS HUMIDI-TECH® replacement parts (refer to the drawing on previous page) No. Description Qty. Part No. No. Description Qty. Part No. 1 Head bolt, large Phillips, ¼ - 20 X 1" 4 700300-013 19 Washer, No.
HUMIDI-TECH® REPLACEMENT PARTS HUMIDI-TECH® subpanel with SSR HT-OM-001 No. Description Qty. Part. No. 1 Subpanel, VM99 barrier 1 120801 2 DIN rail, 12.5" long 1 167765-0125 3 DIN rail, 2.
TWO-YEAR LIMITED WARRANTY DRI-STEEM Humidifier Company (“DRI-STEEM”) warrants to the original user that its products will be free from defects in materials and workmanship for a period of two (2) years after installation or twentyseven (27) months from the date DRI-STEEM ships such product, whichever date is the earlier.
