READ AND SAVE THESE INSTRUCTIONS DRI-STEEM CRUV TM ELECTRIC STEAM HUMIDIFIER Installation Instructions and Maintenance Operations Manual For Toll-Free Customer Support, Call: 1-800-328-4447 ETL LISTED cETL LISTED
TABLE OF CONTENTS TO THE PURCHASER AND THE INSTALLER Thank you for purchasing our CRUVTM humidification equipment. We have designed and built this equipment to give you total satisfaction and many years of trouble-free service. Proper installation and operating practices will assure you of achieving that objective. We therefore urge you to become familiar with the contents of this manual. DRI-STEEM Humidifier Company CRUV Humidifier .........................................................................
CRUVTM HUMIDIFIER Figure 3-1: The CRUV Humidifier (CRUV 6-25 shown, CRUV 2, 4, 30, and 34 not shown) Probe Steam outlet Heater terminal cover Strainer Cover Fill valve Cover bolts Over flow CRUV Humidifier This humidifier is designed to be used with either softened or unsoftened water (softened water will greatly reduce humidifier maintenance and improve overall system performance). The probe-type level control system requires water conductivity of at least 100 micromhos/cm (2 grains/gal or 34.
INSTALLATION Locate the CRUVTM humidifier near an electric power source, water supply and a drain. Verify that sufficient room is provided for a water seal in the drain piping. Refer to Figure 4-3.
INSTALLATION Piping Water make-up piping should be of corrosion-resistant, code-approved material (copper, steel, or plastic). The final connection size is ¼" NPT. In cases where water hammer is possible, a shock arrestor should be considered. Figure 5-2: Vertical Dispersion Tube Duct Drain piping should be of code approved material (copper, steel, or plastic rated for 212°F/100°C minimum). The ¾" O.D. copper sweat connection should not be reduced in size. (See figure 4-3).
SPECIFICATIONS, CAPACITIES, AND DIMENSIONS CRUVTM Mechanical/Electrical Specifications A Top view Side Elevation (CRUV 25, 30, 34) A 15.0 F D G OM-2004 4.25 H OM-759-1 End Elevation E 0.250 Table 6-1: CRUV Dimensions (in inches) Model i n. CRUV/CRUV-DI - 2 & 4 F CRUV/CRUV-DI - 6, 8 & 10 CRUV/CRUV-DI - 12 & 16 CRUV/CRUV-DI - 21, 25, 30 & 34 A B C D E F G H 14.35 15.50 9.00 7.88 11.50 11.44 2.38 6.6 167.7 mm 364 394 229 200 292 291 60.33 i n. 14.35 16.00 14.38 8.
START-UP AND OPERATION Start-up and Checkout Procedures LW417 Electronic Water Level Control Module After the system has been properly installed and connected to both electrical and water supplies, it may then be started. When the power is activated, the solenoid-operated water fill valve will open, filling the evaporating chamber. Filling will continue until water reaches level A (figure 8-1), at which time the fill valve will close.
START-UP AND OPERATION Test Cycling the Drain/Flush System The level control board incorporates a set of slide switches which are marked 1 through 8. To test: 1. Place "SWI" slide switches 1,2 and 3 to off position. 2. Set the humidistat high enough so that unit will remain “on call” for at least 15 minutes. 3. After about 2 minutes of operation, activation will take place, causing the drain valve to open. The water level will then drop to level C (see figure 7-1 on page 7) and allow the fill valve to open.
MAINTENANCE CRUVTM Humidifier (Non-DI humidifiers with either the LW 417 or VAPOR-LOGIC®3 Control Systems) Mineral Precipitate As evaporation takes place in the CRUV humidifier, some of the minerals dissolved in the water precipitate out and float on the water surface. The minerals not removed by the skimmer will settle to the bottom of the evaporating chamber. Cleaning the Evaporating Chamber The heating element itself is self-cleaning.
CRUVTM TROUBLE-SHOOTING GUIDE MODULE INDICATING LIGHTS PROBLEM FULL READY DRAIN WATER Humidifier will not heat Humidifier will not fill Humidifier does not stop filling (LW417 Electronic Water Level System Only)* POSSIBLE CAUSE RECOMMENDED ACTION Off Off Off Control transformer Verify control voltage across secondary leads of transformer. Reset transformer circuit breaker. On On Off Humidistat is not calling Set humidistat to call. Inspect for faulty humidistat.
CRUVTM-DI TROUBLE-SHOOTING GUIDE PROBLEM POSSIBLE CAUSE RECOMMENDED ACTION Humidifier will not heat Control transformer Verify control voltage across secondary leads of transformer. Reset transformer circuit breaker. Humidistat is not calling Set humidistat to call. Inspect for faulty humidistat. Safety controls open Check safety control. (Air flow switch, high limit humidistat, etc.) Low water float switch Verify control voltage from float switch and transformer secondary common.
CRUVTM TROUBLE-SHOOTING GUIDE (VAPOR-LOGIC®3 only) PROBLEM POSSIBLE CAUSE RECOMMENDED ACTION Incorrect or nonexistent supply voltage to unit Check main line safety switch. Check main line fuses. 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.
CRUVTM-DI TROUBLE-SHOOTING GUIDE (VAPOR-LOGIC®3 only) 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 l e ve l . POSSIBLE CAUSE RECOMMENDED ACTION Control transformer Reset control transformer circuit breaker. Humidistat is not calling Set humidistat to call. Inspect for faulty humidistat. Safety controls open Check safety controls, air flow switch, high limit humidistat, etc.
REPLACEMENT PARTS Table 14-1: CRUVTM 2 through 16 Item Description Qty Part No.
REPLACEMENT PARTS Table 15-1: CRUVTM 21, 25, 30 and 34 Item Description Qty Part No.
REPLACEMENT PARTS Table 16-1: CRUVTM-DI 2 through 16 Item D escription Qty Part N o.
REPLACEMENT PARTS Table 17-1: CRUVTM-DI 21, 25, 30 and 34 Item Description Qty Part No.
REPLACEMENT PARTS Table 18-1: CRUVTM Control Cabinet with VAPOR-LOGIC®3 and SSR option Item Qty Part No.
MAINTENANCE SERVICE RECORD DATE INSPECTED PERSONNEL OBSERVATION ACTIONS PERFORMED 19
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 twenty-seven (27) months from the date DRI-STEEM ships such product, whichever date is the earlier.
