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READ AND SAVE THESE INSTRUCTIONS
Deionized, Demineralized, or Reverse Osmosis Water
SXDDR Series
Steam Heat Exchanger Humidifi er
Installation Instructions
Operation and Maintenance Manual
Our results are comforting
PURE HUMIDIFIER® and INTAC® are registered trademarks of PURE Humidifi er Co.
Form No: SXDOM-6-2023
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Table of Contents
Related Manuals for PURE SXDDR Series
Summary of Contents for PURE SXDDR Series
- Page 1 READ AND SAVE THESE INSTRUCTIONS Deionized, Demineralized, or Reverse Osmosis Water SXDDR Series Steam Heat Exchanger Humidifi er Installation Instructions Operation and Maintenance Manual Our results are comforting PURE HUMIDIFIER® and INTAC® are registered trademarks of PURE Humidifi er Co. Form No: SXDOM-6-2023...
- Page 2 All components that will be in conact with water are constructed of stainless steel, incoloy, or corrosion-resistant materials. Use of mineralized (hard or soft) water will cause fi ll valve failure and void the warranty. PURE Humidifi er Co.’s SX Series should be installed on applications that require tap water.
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Page 3: Table Of Contents
Table of Contents Introduction Warnings ………………………………………………………………………………………..Overview Features ………………………………………………………………………………………..Capacities, Weights & Water Volumes ………………………………………………………… Clearances & Mounting Considerations ……………………………………………….... Dimensions SXDDR-1R through SXDDR-4R …………………………………………………….. SXDDR-8R ………………………………………………………………………..SXDDR-12R ………………………………………………………………………..Installation Installation & Location ……………………………………………………………………….….. Mounting Applications Support Legs …………………………………………………………………….….. Wall Brackets ………………………………………………………………………... Drain Pan Mounting ……………………………………………………………………….…... -
Page 4: Warnings
(CSCC) and chloride pitting of stainless steel components is not covered by warranty. Use of mineralized (hard or soft) tap water will cause fi ll valve failure and void the warranty. PURE Humidifi er Co.’s SX Series should be installed on applications that require tap water. -
Page 5: Features
Features Features 1. Low Water Float Switch Junction Box 5. Heat Exchanger/Plant Steam Condensate Outlet 2. 1/4” NPT Fill Inlet Connection 6. Pressurized Boiler Steam Inlet 3. Overfl ow Piping 7. Heat Exchanger 4. 3/4” NPT Ball Valve 8. Humidifi er Steam Outlet Connection... -
Page 6: Capacities, Weights & Water Volumes
Capacities, Weights & Water Volumes Humidifi er Capacity † Steam Pressure at the Humidifi er Control Valve Model 5 psig 34.5 kPa 10 psig 69 kPa 13 psig 90 kPa 15 psig 103 kPa lbs/hr kg/hr lbs/hr kg/hr lbs/hr kg/hr lbs/hr kg/hr SXDDR-1R... -
Page 7: Clearances & Mounting Considerations
Clearances & Mounting Considerations 12” 6” (30.5 cm) (15.2 cm) 6” (15.2 cm) SXDDR-1R: 20” (50.8 cm) SXDDR-2R: 20” (50.8 cm) SXDDR-3R: 24” (61.0 cm) 36” (91.4 cm) with factory mounted SXDDR-4R: 34” (86.4 cm) control panel SXDDR-8R: 34” (86.4 cm) SXDDR-12R: 34”... -
Page 8: Sxddr-1R Through Sxddr-4R
Dimensions SXDDRDDR-1R through SXDDRDDR-4R NEMA-12 Humidifi er Control Cabinet Steam Outlet Connection (reference control cabinet notes) (size and qty will vary w/application “B” “E” SXDDR-1R: 3.53” (8.9) Heat Exchanger Removal SXDDR-2R: 3.53” (8.9) (see Clearances & “D” SXDDR-3R: 3.56” (9.0) Mounting Considerations SXDDR-4R: 5.44”... -
Page 9: Sxddr-8R
Dimensions SXDDR-8R NEMA-12 Humidifi er Control Cabinet Steam Outlet Connection (reference control cabinet notes) (size and qty will vary w/application “B” “E” Heat Exchanger Removal 3.87” (see Clearances & (9.8) Mounting Considerations page for clearance dimension) “D” Cabinet Depth: 6.00” (15.2) Top View Door has been removed from the drawing for clarity. -
Page 10: Sxddr-12R
Dimensions SXDDR-12R NEMA-12 Humidifi er Control Cabinet Steam Outlet Connection (reference control cabinet notes) (size and qty will vary w/application “B” “E” Heat Exchanger Removal (see Clearances & 3.87” (9.8) Mounting Considerations page for clearance dimension) “D” Cabinet Depth: 6.00” (15.2) Top View Door has been removed from the drawing for clarity. -
Page 11: Installation & Location
Installation & Location Important: Remove all shipping brackets and materials Location of Controls before operating the humidi er. Humidi er ue gases must be vented to the outside atmosphere. Power It is important to avoid mounting any controls within the supply disconnect switch must be in the o position while visible steam. -
Page 12: Mounting Applications
24” (61) Above Floor Floor Secure to fl oor (mounting Front View hardware by others) Steam Outlet Connection 1 1/4” x 1 1/4” x 1/4” Angle Iron Support Legs (Painted by PURE Humidifi er Co.) Typical 2 Floor Right Side... -
Page 13: Wall Brackets
Reference the humidifi er schedule to verify which injection tube Cross Support (by system is to be provided. others) See Note #2 See Note #1 Due to the operating weight, PURE Humidifi er Co. does not recommend wall mounting of the models: SXDDR-4R through SXDDR-12R. -
Page 14: Drain Pan Mounting
However, if the humidifi er and injection tube are located in an area that contains valuable equipment or is a water sensitive area, PURE Humidifi er Co. recommends the addition of a drain pan under the humidifi er and under the injection tube. -
Page 15: Water Supply & Drain Piping
The drain piping should be stainless steel. The use of PVC piping is not recommended; the humidifi er temperature will cause the PVC to soften and fail. If gravity drain is not possible please use a condensate pump rated for 212°F water or contact a PURE Humidifi er Co. Representative to purchase one. -
Page 16: Drain Piping
Piping Drain Piping 1/4”-NPT Water Inlet † Connection Steam Outlet Connection SIDE VIEW Heat Exchanger 3/4” SW Copper Drain Connection “H” Water Seal Open Sanitary Drain Water Seal Height Δ Capacity “H” lbs/hr kg/hr inches Up to 60 Up to 27.2 8”... -
Page 17: Steam & Condensate Piping
Shut-Off Valve (by others) Steam Supply Line 3/4” SW Reservoir Heat Exchanger Drain Connection Condensate Steam Trap (by PURE) Non-Pressurized Condensate Return Line Open Drain Open Drain (Do NOT elevate) PIPING NOTES 1. Do not install piping across the front of the heat exchanger. -
Page 18: Sxddr-8R
Steam & Condensate Piping SXDDR-8R Vacuum Breaker Control Valve (by others, Typ. 2) Pneumatic Actuator Shown Water Supply Line (by PURE, Typ. 2) Wye Strainer (by PURE, Typ. 2) Shut-Off Valve (by others, Typ. 2) Steam Supply Line (Typ. 2) Condensate Steam Trap 1”... -
Page 19: Sxddr-12R
Steam & Condensate Piping SXDDR-12R Vacuum Breaker Control Valve Water Supply Line (by others, Typ. 3) Pneumatic Actuator Shown (by PURE, Typ. 3) Wye Strainer (by PURE, Typ. 3) Shut-Off Valve (by others, Typ. 3) Steam Supply Line (Typ. 3) Condensate Steam Trap (by PURE, Typ. -
Page 20: Supply Piping Examples
Steam Supply Piping Examples Pitch Use two 45° elbows for (see Note 1) hard piping or wide 90° for exible steam hose ¹ ”/1’ 2”/1’ see Note 2 Supply piping see Note 2 connectors (see Note 4) Pitched Towards Steam Generator Pitched Towards Tube Assembly Drain Tee (see Note 7) -
Page 21: Injection Tube Installation
Single or Multiple Injection Tube Installation Single or Multiple Injection Tube Installation Single injection tubes should be installed in the center of the duct. Multiple injection tubes should have the tubes staggered within the duct as shown in the illustration. The supply piping and injection tube should be pitched according to the examples on page 13. - Page 22 Single or Multiple Injection Tube Installation Single or Multiple Injection Tubes with Drain Tee Flexible Hose or Hard Piping Stainless Steel Drain Duct (below humidifi er) Tee (optional) “H” Water 3/4” SW Seal Height Condensate drain line (by others) Open Sanitary Drain Water Seal Height Δ...
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Page 23: Steam Supply Piping
Steam Supply Piping PURE recommends stainless tubing or pipe to match the steam outlet diameter connection on the humidi er cover. Stainless has superior corrosion resistance over copper and is less expensive but slightly harder to install. Stainless tubing is preferable over stainless pipe due to the fact that the tubing is less expensive and reduces heat loss/condensate formation during operation. -
Page 24: Blower Pack
Blower Pack In applications where a ducted air system is not available, PURE off ers the optional Blower Pack. The Blower Pack contains a two-speed adjustable blower that moves the air over the steam discharge outlet and disperses the steam directly into the space (see Fig. - Page 25 Blower Pack Locating Blower Pack The distance that visible steam will travel after leaving the Blower Pack is dependent upon the relative humidity in the room and the capacity of the humidifi er. If this visible steam comes in contact with any solid object (walls, beams, machinery, etc.) it may form condensate and drip.
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Page 26: Controls Location
Controls Locations Outside Air Tube Assembly Air ow Proving Switch On/O or Modulating Outside Air Temperature Sensor High Limit Humidistat Return Air Exhaust Air Air Handling Unit 8’-10’ Minimum Window Window Door Recommended Humidistat and Sensor Locations A. Optimal location for even air ow and a stable temperature B. -
Page 27: Pre-Startup Checklist
SXDDR Pre-Startup Procedure Pre-Startup Checklist Before starting the SXDDR PURE Humidifi er Co. Electric _____ 7. PIPING: High Pressure Steam Inlet - Make sure a Humidifi er, check the following installation items: shut-off is installed before the strainer. Make sure a strainer is installed before control valve(s). -
Page 28: Sxddr Startup Procedure
SXDDR Startup Procedure Startup Procedure _____ 1. Turn the electric power “on” to the humidifi er. _____ 11. Check the main steam supply pressure. The pressure should match the factory nameplate. NOTE: Do not _____ 2. RH Setpoint on the touchscreen should be set to exceed the factory nameplate pressure rating! See warning 0.0% RH (no call for humidity). -
Page 29: Troubleshooting
Troubleshooting • Verify humidifi er and accessories are installed according to Operation and Maintenance manuals. • Please read all Operation and Maintenance manuals to familiarize yourself with the equipment. • A job specifi c wiring diagram can be located inside the control panel door. Problem Possible Cause Recommended Action... -
Page 30: Maintenance Instructions
However, the humidifi er should be inspected and place on a dedicated maintenance schedule to ensure continued operation of the humidifi er and its accessories. PURE Humidifi er Co. recommends that the following items be inspected, and/ or, cleaned on a minimum basis of twice a year. If excessive mineral build-up occurs, the maintenance schedule should be increased. -
Page 31: Exchanger Gasket Replacement Instructions
Exchanger Gasket Replacement Instructions WARNING Disconnect the humidifi er power, gas, exhaust system and allow the humidifi er to cool prior to servicing. Drain water level below the level of the exchanger being serviced. Heat exchangers have a top and bottom. There is a break (crease) on the bottom side of the heat exchanger. -
Page 32: Cover Gasket Replacement Instructions
Cover Gasket Replacement Instructions Remove the reservoir cover. While looking at the top of the unit, reference Figure A and B to determine which humidi er tank style you have. Figure A Installation Fit the gasket around the entire lip of the tank opening. Cut the gasket ¹ ” longer than required, this will ensure proper t when the cover is clamped back on. -
Page 33: Tool Requirements And Torque List
Tool Requirements & Torque List Recommended Maintenance Tool List 7/16” Wrench 3/4” Wrench Crescent Wrench 11/32” Nut Driver or Socket 3/8” Nut Driver or Socket 5/32” Allen Head Flat Head Screw Driver Wire Stripper Wire Crimper Torque List Cover Bolts 18 inch/pounds MAX Side Entry Exchanger Bolts 80 inch/pounds MAX... -
Page 34: Maintenance Notes
Maintenance Notes Maintenance Performed Date... -
Page 35: Sxddr-1R Through Sxddr-4R Exploded Parts Drawing
Exploded Parts Drawing SXDDR-1 through SXDDR-4... -
Page 36: Sxddr-1R Through Sxddr-4R Parts List
PURE Humidifi er Co. SXDDR-1 through SXDDR-4 Parts List & Two Year Recommended Spare Parts Qty Per Unit Cover Clamp Screw (10-24 x 1" Hex Socket) 15522 ) v l " 4 n i l c t i " 4... -
Page 37: Sxddr-8R Exploded Parts Drawing
Exploded Parts Drawing SXDDR-8... -
Page 38: Sxddr-8R Parts List
PURE Humidifi er Co. SXDDR-8 Parts List & Two Year Recommended Spare Parts Qty Per Unit Cover Clamp Screw (10-24 x 1" Hex Socket) 15522 ) v l " 4 n i l c t i " 4 Water Fill Float Valve and Ball 316 Stainless Steel 09030 "... -
Page 39: Sxddr-12R Exploded Parts Drawing
Exploded Parts Drawing SXDDR-12... -
Page 40: Sxddr-12R Parts List
PURE Humidifi er Co. SXDDR-12 Parts List & Two Year Recommended Spare Parts Qty Per Unit Cover Clamp Screw (10-24 x 1" Hex Socket) 15522 ) v l " 4 n i l c t i " 4 Water Fill Float Valve and Ball 316 Stainless Steel 09030 "... -
Page 41: Warranty
The PURE Humidi er Co. Warranty PURE Humidi er Co. guarantees its products to be free from defects in material and workmanship for a period of one year from the date of shipment; provided the product is properly installed, serviced, and put into the service for which it was intended. - Page 44 PURE Humidi er Co. also reserves the right to deliver revised designs or models of products against any order, unless this right is speci cally waived in writing by PURE Humidi er Co. PURE Humidi er Co. shall have no responsibility whatsoever with respect to changes made by the manufacturer in products sold but not manufactured by PURE Humidi er Co.
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