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Troubleshooting
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Summary of Contents for Condair WH
- Page 1 Important: Read and save these instructions. This guide to be left with equipment owner. Condair WH Installation and Operation Manual Includes installation, operation maintenance and troubleshooting information for your Condair WH Electric Steam humidifier 2606630-B 28 MARCH 2024...
- Page 2 CYlINDER # Proprietary Notice This document and the information disclosed herein are proprietary data of Condair Ltd. Neither this document nor the information contained herein shall be reproduced, used, or disclosed to others without the written authorization of Condair Ltd., except to the extent required for installation or maintenance of recipient’s equipment. .
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Page 3: Table Of Contents
Installation Check Condair WH Exploded View On/Off or Modulating Operation Condair WH Spare Parts Start Up Procedure Digital Controls Condair WH Pre-Start Up Checklist Condair WH Start Up Checklist Operation LED Status Lights Selecting a Relative Humidity Setpoint Humidifier Components... -
Page 4: Introduction
• Do not mount on floor. • The Condair WH produces steam at atmospheric pressure. No devices which could block steam output should be connected to the steam outlet. • Steam lines must be installed so that no restriction can produce backpressure in the humidifier. -
Page 5: Receiving And Unpacking
Receiving and Unpacking 1. Check packing slip to ensure ALL material has been delivered. 2. All material shortages are to be reported to Condair within 48 hours from receipt of goods. Condair assumes no responsibility for any material shortages beyond this period. -
Page 6: Condair Wh Models
Condair’s industrial electrode platform. The Condair WH is available in 2 models: Duct, and Space. The duct model is designed for connection to a steam distributor installed in a supply air duct, or for connection to a remote blower pack. The space model is designed for applications where humidity is to be introduced directly into the conditioned environment. -
Page 7: Options And Accessories
Condair provides a complete line of options and accessories for every humidification application. The following options and accessories are available and may have been delivered with your Condair WH humidifier. Refer to the installation instructions that came with the accessories for proper installation and operation. -
Page 8: Installation
Installation Typical Condair WH Installation Mounting Page 8 1 ft (30 cm) 2 in. (5 cm) min. Steam Distribution NOTE: Additional Clearances Page 12 2 in. (5 cm) screws required for blower pack 1 ft (30 cm) min. 24 in. (61 cm) min. -
Page 9: Location
Mount on a suitable wall or vertical surface. Do not sit the unit on the floor. Allow clearances required for plumbing and electrical connections. Clearance dimensions shown are for reference only and are the minimum required for maintenance of the humidifier. Consult local and national codes before final location and installation. Condair does not accept responsibility for installation code violations. -
Page 10: Mounting With Keyholes
Mounting with Keyholes 1. The Condair WH humidifier is wall mounted using a keyhole located on the back of the unit cabinetry. 2. Use #8 x 2 in. (5 cm) screws mounted into 2x4 studs or better. Two screws are needed, one for hanging the unit and one for securing so it will not lift off the keyhole. -
Page 11: Plumbing
Always install a water shut-off valve. Use 1/2 in. OD copper to within 4 ft (1.2 m) of humidifier * Pipe and water shut-off valve not supplied by Condair. Figure 6: Water Supply and Drain Connection • All water supply and drain line connections should be installed in accordance with local plumbing codes. -
Page 12: Steam Distributor
Steam Distributor • Steam generated by the Condair WH-S (Space) is blown directly into the space by the integrated blower pack. The Condair WH-D (Duct) requires a steam distributor, installed in the ventilation duct. The Condair WH-D (Duct) can distribute steam into a ventilation duct using the following distributor options in... - Page 13 2 X duct height min. 1/3 duct width 8 in. (20 cm) 12 in. min. (30 cm) min. Mount ASD/RSD distributor to side of duct 1/3 duct height Figure 8: Condair WH-D RSD10, ASD10 and SSD Distributor Installation Installation...
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Page 14: Steam Lines And Condensate Return Instructions
(supplied with equipment). Insert the condensate hose into the condensate return hole at the top of the Condair WH unit, and over the copper tube. Fasten in place with the spring clamp. - Page 15 MAIN RULES FOR ATMOSPHERIC STEAM LINES • Steam lines must not have any restrictions which could result in back pressure. • Follow recommended materials, size and length, see tables. • Slope the steam lines. • Insulate with 1.0 in. (2.5 cm) pipe insulation. •...
- Page 16 Condensate trap Connect steam hose to cylinder Connect condensate hose to fill cup Figure 11: Steam Distributor Above Humidifier (using Condair hose) Support brackets min. 12 in. (30 cm) Hose will soften radius over time proper support is...
- Page 17 Use full size condensate tee at low point. Slope line up to To drain "T" and immediately after it To drain Figure 13: Steam Distributor Below Humidifier, With Obstruction (using Condair hose) Condensate trap not 12 in. (30 cm) below distributor No condensate...
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Page 18: Electrical
Electrical Caution: Wiring to be performed by a licensed Electrician. Note: Power wires can also be routed through the openings in the back of the cabinet 240 VAC (1 phase) Ground Note: Ground Install jumper between P and terminal that corresponds to supply voltage. -
Page 19: External Controls
For wiring use minimum 18 AWG and keep as short as possible. The Condair WH humidifier can be operated with either On/Off controls only or with On/Off controls and one modulating input. The modulating input can be from a duct high limit or humidity control humidistat. See "Humidi-... -
Page 20: Space Humidification Control Location
Space Humidification Control Location These instructions apply to the Condair WH-S and the Condair WH-D with Remote Blower Pack. Humidity Control (in location representative of the space Figure 17: Control Location (In-Space Humidification) Control Location(Space Humidification) Humidity Control – Can be Modulating or On/Off humidistat •... -
Page 21: On/Off Control Wiring
1 and 3 of humidifier. Humidity Control can be wall mounted as shown or return air duct mounted. Condair WH-D no fan enable = Jumper 1-8 and air proving in series with on/off control 1-2. Condair WH-D with fan enable = Air proving 1-8 and On/Off controls in series 1-2. -
Page 22: Modulating Control Wiring
20 - Fan Enable 21 - Space Distribution Condair WH-D no fan enable = Jumper 1-8 and air proving in series with on/off control 1-2. Condair WH-D with fan enable = Air proving 1-8 and On/Off controls in series 1-2. -
Page 23: Fan Enable Wiring
Consult the air handler’s installation manual for exact wiring instructions on how to enable the fan. Condair WH Fan Control The Condair WH can be used to turn on a furnace fan where there is a demand for humidity without a call for heat. Air Proving Switch Wire to make when... -
Page 24: Options And Accessories
Options and Accessories Remote Blower Pack A remote blower pack is available for the Condair WH-D for applications where steam for humidification must be introduced directly into the conditioned environment but the humidifier must be installed in a different location. -
Page 25: Start Up
Start Up Installation Check Before turning on power to the Condair WH inspect the installation to ensure that it was carried out correctly. Refer to "Condair WH Pre-Start Up Checklist" on page 29, and to chapter "Installation" on page 10 ft (3 m) min. -
Page 26: On/Off Or Modulating Operation
On/Off or Modulating Operation From the factory the Condair WH is configured to operate as an On/Off humidifier. It will run when 24 VAC from terminal 1 is fed back into terminal 2 through an On/Off humidistat and other security devices in series. -
Page 27: Start Up Procedure
10. It can take 5 – 10 minutes for the water to be heated up by the submerged electrodes and for steam to be produced. Note: If operated on low conductivity water it may take several hours for the Condair WH to reach full output capacity. This is normal. During this time the humidifier will not perform any drains and the conductivity of the water in the cylinder will increase. -
Page 28: Digital Controls
On/Off loop. Adjust the setpoint to the desired setting by using the up/down arrow buttons on the controller. Note: It is possible to field calibrate Condair digital controls if the displayed humidity is found to be different than a known trusted source. See chapter"Troubleshooting"... -
Page 29: Condair Wh Pre-Start Up Checklist
Condair WH Pre-Start Up Checklist Unit Serial #: ________________ No. of humidifiers:____________ Tag: ________________________ Unit type: ___________________ Voltage: ________V/_______ph Cylinder type: _______________ Customer/Job: _______________ Address: ___________________ WATER QUALITY: Well water c City water c Softened water c HUMIDIFIER MOUNTING: • Level ____________________________________ •... -
Page 30: Condair Wh Start Up Checklist
Condair WH Start Up Checklist Unit Serial #: ________________ No. of humidifiers:____________ Tag: ________________________ Unit type: ___________________ Voltage: ________V/_______ph Cylinder type: _______________ Customer/Job: _______________ Address: ___________________ PRELIMINARY: • Pre-start-up checklist completed? yes c no c If no, perform Pre-Start-up Checklist before starting humidifier. -
Page 31: Operation
Duct High Limit – The duct high limit is intended to prevent saturation and wetting in duct work at high load conditions. Condair recommends a setting of 85% for the duct high limit. It may be necessary to reduce this setting if the duct work is very cold or in contact with exterior cold surfaces. -
Page 32: Humidifier Components
Steam Outlet Sensor Plug Condensate Return Blower pack Fill Cup High Voltage Cylinder Plug Terminal Block Cylinder Transformer Power Relay Control Board Fill Valve Control Terminal Strip On/Off Drain Switch Drain Canal Drain Valve Figure 28: Condair WH Humidifier Components Operation... -
Page 33: Description Of Components
Description of Components Table 5: Humidifier Components Component Function of Component Blower pack Disperses steam generated by the humidifier directly into a space being humidified. Consists of a steam distributor, fan, power supply, and mounting bracket. Condensate Return Provides a connection to return condensate to humidifier. Control Terminal Strip Terminal strip for connecting external controls to humidifier and interfacing with other equipment. -
Page 34: Humidifier Schematic
Humidifier Schematic Steam Line Steam Distributor Condensate Return Fill Cup Control board Cylinder Overflow Current Sensor High Water Sensor Electrodes Fill Valve Drain Valve Drain Canal Internal Air External Air Air Gap Figure 29: Humidifier Schematic Operation... -
Page 35: How The Humidifier Works
Eventually because of scale formation it will no longer be possible for the humidifier to reach its full capacity. The Condair WH software monitors this condition and, when detected, will stop operating and flash the yellow LED in a repeating se- quence of 4 flashes. -
Page 36: Steam Line
(or room if blower pack is used). Condensate can be returned to the Condair WH fill cup to reduce water waste or can be fed to drain. -
Page 37: Humidifier Configuration
If required, several settings can be made using jumpers on the Condair WH’s control board. The output of the Condair WH can also be reduced by using a potentiometer on the Condair WH’s control board. See Figure 31: Condair WH Control Board Jumpers for location of jumpers and the capacity adjustment potentiometer. -
Page 38: On/Off Or Modulating Control (J10)
On/Off or Modulating Control (J10) The Condair WH output can be controlled by either an On/Off or a modulating humidistat. To set the Condair WH to operate with a modulating humidistat, remove Jumper J10. (Factory setting = jumper Installed , On/Off operation) J10 Removed –... -
Page 39: Maintenance And Servicing
Cylinder Spent Fault When the cylinder is spent the Condair WH will stop operating and the yellow LED will flash in a repeating pat- tern of 4 flashes. See "Table 8: Troubleshooting Condair WH Faults"... -
Page 40: Removing The Cylinder
Removing the Cylinder Warning • Disconnect main power at the external disconnect before any servicing. • The inside of the humidifier cabinet contains high voltage components and wiring. Access should be limited to authorized personnel. 1. Drain the existing cylinder by switching the On/Off/Drain switch to the Drain position. Let the humidifier drain until no more water is flowing out to drain (usually not more than 10 minutes). -
Page 41: Drain Valve Cleaning
Drain Valve Cleaning Always clean the drain valve before installing a new cylinder. Scale from the spent cylinder may have fallen into the drain valve and could prevent its proper operation. To properly clean the drain valve it must be removed and disassembled. -
Page 42: Installing The New Cylinder
a t o r A c t u Plunger Spring (Note Orientation) Sleeve and Solenoid Figure 36: Drain Valve Actuator Assembly Installing the New Cylinder CAUTION: Make sure the new cylinder is the same model as the one that was removed. Model number is on top left corner of cylinder label. -
Page 43: Extended Shutdown
5. Close the supply water shut-off valve. Note: As long as the Condair WH is powered, it will automatically drain the cylinder when there has not been a call for humidity for an extended period of time. This feature will reduce or prevent the possibility of corrosion of the electrodes and the accumulation of algae and bacteria growing in the cylinder. -
Page 44: Condair Wh Maintenance Checklist
Condair WH Maintenance Checklist Model #: __________________________ Serial #: ___________________________ Tag: ____________ Cylinder #: ________________________ CHECK CYLINDER • Cylinder spent, yellow LED flashing 4 times in sequence ¨ (If Yellow LED is On and cylinder is not new then cylinder will have to be replaced soon) REPLACE CYLINDER •... -
Page 45: Troubleshooting
• Wiring diagram for specific for your humidifier is installed on the inside of the humidifier door. A generic copy of the Condair WH wiring diagram is also included at the end of this chapter for reference purposes. • When contacting your local representative or Condair for troubleshooting assistance, please ensure the serial number has been obtained for reference purposes. -
Page 46: General Troubleshooting
General Troubleshooting The following section provides general guidelines for troubleshooting the Condair WH humidifier and auxiliary components. For detailed troubleshooting information refer to the manuals that were provided with the auxiliary equipment and to "Table 8: Troubleshooting Condair WH Faults" on page... -
Page 47: Steam Distributors
Steam Distributors Symptom Cause Corrective Action(s) Distributor spitting out water 1 Distributor not level 1 Use support at end of distributor to ensure it is level. 2 “P” Trap too close to distributor 2 “P” Trap must be a minimum of 12 in (30 cm) below the distributor to ensure flow. -
Page 48: Condair Wh Faults
The self-diagnostic system built into the Condair WH is continually monitoring the operation of the humidifier. When an abnormal condition occurs that cannot be self-corrected by the software the Condair WH will turn off power to the cylinder, drain the cylinder, and annunciate the fault using the yellow status LED. - Page 49 Table 9: Troubleshooting Condair WH Faults (Continued) Yellow LED System Detected Cause Corrective Action(s) 1 Drain valve leaking or stuck 1 Clean drain valve or replace open. (see section "Maintenance and Servicing" on page 39). 2 Water shut off valve closed. 2 Open shut off valve.
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Page 50: Condair Wh Wiring Diagram
24 V pilot control only Condair WH Duct no fan enable = Jumper 1-8 and air proving in series with on/off controls 1-2 Ensure J23 Removed! Condair WH Duct with fan enable = Air proving 1-8 and on/off controls in series 1-2... -
Page 51: Rh2+ Exploded View And Spare Parts List
Condair WH Exploded View and Spare Parts List Condair WH Exploded View Figure 37: Condair WH Exploded View Troubleshooting... - Page 52 Condair WH S Condensate Hose Drain Valve Assembly Optional Bottom Cover Transformer Multi-tap 120/208/240V Cylinder Plug Kit Elbow/Compression Fitting Assembly PCB Condair WH-D 10 lbs/hr or PCB Condair WH-S 8 lbs/hr Electrical Backplate Drain Pan Preformed Drain Hose LED Lens Rocker Switch...
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Page 53: Condair Wh Spare Parts
Condair WH Spare Parts The following spares parts are for Condair WH models only: Condair Part No. Description 2606628 Condair WH-D, 10 lbs/hr, 120/208/240V 1P 2606629 Condair WH-S, 8 lbs/hr, 120/208/240V 1P Table 10: Condair WH Spare Parts List Spare Part... - Page 54 Notes...
- Page 55 The warranties set forth herein are in lieu of all other warranties expressed or implied by law. No liability whatsoever shall be attached to CONDAIR until said products have been paid for in full and then said liability shall be limited to the original purchase price for the product.
- Page 56 Buy authentic Condair parts factory direct. Would you recommend Condair? Take our two question survey. U.S.A. 1021 6th Street Racine, WI 53403 CANADA 2740 Fenton Road Ottawa, Ontario K1T 3T7 TEL: 1.866.667.8321 EMAIL: na.info@condair.com WEBSITE: www.condair.com...
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