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Armstrong HumidiClean GFH Series Installation And Maintenance Manual

Category i / iii gas fired appliance
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IB-547
Armstrong Series GFH Gas Fired
HumidiClean with Communications
Category I / III Gas Fired Appliance
Installation and Maintenance Manual
Models GFH-150, GFH-300 and GFH-450
Please read and save these instructions. This guide is to be left with the equipment owner.
For Customer Support Call:
(269) 273-1415
Armstrong International
816 Maple Street
Three Rivers, MI 49093

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  • Page 1 IB-547 Armstrong Series GFH Gas Fired HumidiClean with Communications Category I / III Gas Fired Appliance Installation and Maintenance Manual Models GFH-150, GFH-300 and GFH-450 Please read and save these instructions. This guide is to be left with the equipment owner.

  • Page 3: What To Do If You Smell Gas

    WARNING: If the information in this manual is not followed exactly, a fi re or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoline or other fl ammable vapors and liquids in the vicinity of this or any other appliance.

  • Page 4: Table Of Contents

    Table of Contents Safety Precautions ........................1 Installation ..........................2 Site Selecton ........................2 Mounting Unit ........................3 Water Fill Supply ......................5 Electrical Service ......................5 Drainage ........................... 5 Gas Piping ..........................5 Gas Leak Testing ......................6 Combustion Air ..........................7 Venting (General) .........................
  • Page 5 Table of Contents Principal of Operation ......................... 21 Completing a Service Life Cycle ..................21 End of Season Drain ...................... 21 Maintenance ..........................22 Recommended Inspection Schedule ................22 Replacing Ionic Beds ...................... 22 Cleaning Level Control Electrodes ................. 23 Burner Assembly ......................

  • Page 6: Safety Precautions

    Safety Precautions Warning: Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poisoning, an explosion, fi re, electrical shock, or other conditions that may cause personal injury or property damage. Consult a qualifi ed installer, service agency, local gas supplier, or your distributor or branch for information or assistance.

  • Page 7: Installation

    Installation Check Shipment. A claim should be fi led with the transportation company, and reported to Armstrong International, Inc. if any items are missing or damaged. Important: Remove all shipping materials before installing the humidifi er Humidifi er fl ue gasses must be vented to the outside atmosphere.

  • Page 8: Mounting Unit

    Mounting Unit The Series GFH is designed to be fl oor mounted on a level surface. Required Clearance For recommended service and maintenance purposes, the following clearances should be maintained:   Front: 40”   Left Side: 1"   Right Side: 1”...
  • Page 9 Table 4-1. GFH Gas Fired HumidiClean Physical Data GHF-150 GFH-300 GFH-450 A - Tank Width 35-1/4 48-1/2 1232 B - Overall Height 54-3/16 1378 54-3/16 1376 54-3/16 1376 C - Overall Width 46-1/8 1172 50-3/8 1280 54-7/8 1394 D - Steam Outlet to End of Cabinet 24-13/16 23-13/16 24-13/16...

  • Page 10: Water Fill Supply

    Water Fill Supply The humidifi er can use any potable or purifi ed water supply. Water pressure must be 25 – 125 psi (1.7 – 8.6 bar). Water temperature must be less than 140°F (60°C). Average fi ll rates for all models is 3gpm (0.19 l/sec).

  • Page 11: Gas Leak Testing

    Gas Supply Line Plugged 1/8" NPT Test Gauge Conn. Humidifier Cabinet Gas Cock Gas Cock Supplied by Ground Joint Armstrong International, Inc. Union Note: All piping and fittings external to humidifier supplied by others. 3" Min. Drip Pocket Table 6-1. Gas Pipe Capacities Gas Flow in Piping (Cu.

  • Page 12: Combustion Air

    Combustion Air Caution: Air for combustion must not be contaminated by halogenated hydrocarbons, which include fl uoride, chloride, bromides and iodide. These elements are found in aerosol sprays, detergents, bleaches, cleaning solvents, salts, air fresheners, and other household products. Humidifi er warranty is voided when failure of gas equipment is due to operation in a corrosive atmosphere.
  • Page 13 The outdoor air source can be a connection outside the building or a connection to an outdoor air plenum inside the building. If the inlet combustion air is to be drawn in from a connection outside the building, special precautions must be made, such as proper termination outside the wall, and a screen on the air inlet to prevent any debris from entering the air inlet pipe.

  • Page 14: Venting (General)

    Venting Overview - This humidifi er is a Category I / III appliance, which means it produces a positive pressure in the vent system when it is exhausting the appliance fl ue products to the outdoors. It may be vented vertical or horizontal but special fl...

  • Page 15: Horizontally Vented

     If this humidifi er is vented to a lined masonry chimney, the chimney must be sized and installed in accordance with the provisions of the National Fuel Gas Code, or Canadian CAN/CGA.B149 requirements. Vent connectors from the humidifi er to the chimney should be made with a vent pipe rated for Category I/III appliance rating.

  • Page 16: Steam Distribution

    For applications with particularly limited downstream absorption distance, Armstrong HumidiPack may be considered. HumidiPack is a prefabricated separator/header and multiple dispersion tube assembly. It provides uniform distribution and shortened non-wetting vapor trail. Consult Armstrong Installation Bulletin No. 560 for more information.

  • Page 17: Control Wiring

    0-10 Vdc, 4-20 mA, or 0-5VDC. Refer to Figures 12-2 0-10 Vdc Stat X5-20 through 12-4 for appropriate wiring and DIP switch settings. (Standard) X5-19 4. Wire standard Armstrong 0-10 Vdc humidistat as shown in A8581 High Limit Figure 12-2. Humidistat A9023 Fan Interlock or...

  • Page 18: High Limit Humidistat

    Armstrong Pressure Switch (Armstrong Part A9023): All pressure and electrical connections and set point adjustments are on side for each installation. Temperature limit: 32°F. to 180°F. maximum surge pressure: 10 psig rated pressure: 45" H Pressure connections: 1/8"...
  • Page 19 Figure 14-1...

  • Page 20: Outdoor Enclosure Option

    (see drawings on pages 15-18). Consult local codes for exact fl ue height requirements. B-Vent type piping will be acceptable for all the outdoor enclosure units.  An optional curb package can be provided with the unit. Please consult factory, or your local Armstrong Sales Representative for more information.
  • Page 21 Gas Fired Roof Installation...
  • Page 22 GFHE 150 Outdoor Enclosure...
  • Page 23 GFHE 300 Outdoor Enclosure...
  • Page 24 GFHE 450 Outdoor Enclosure...

  • Page 25: Start-Up Procedure

    Start Up Procedure Only qualifi ed personnel should perform start up procedure. Figure 20-1 Examine the electrical compartment for any loose or disconnected component wiring. Check to make sure all of the control wiring has been completed and been done correctly. Remove the top cover of the unit by unscrewing the screws holding the lid in place.

  • Page 26: Principal Of Operation

    Principal of Operation The Gas Fired HumidiClean humidifi er converts ordinary tap water or purifi ed water to steam for distribution to raise the relative humidity level. The demand for humidity is sensed by a humidistat, which sends a control signal to the Gas Fired HumidiClean.

  • Page 27: Maintenance

    When servicing or replacing components, use only Armstrong approved replacement parts. Please contact Armstrong directly, or your local Armstrong Representative for a complete parts list. Any substitution of parts or controls not approved by Armstrong International, Inc. is at the owner’s risk.

  • Page 28: Cleaning Level Control Electrodes

    8. Armstrong also offers a non-caustic cleaning solution called Rite-Quick. Please contact Armstrong, or your local Armstrong Representative for more information. 9. Install new ionic beds, snapping them into place on the support pins. 10. Be sure lid gasket is lapped over all edges of tank access opening. Replace and secure lid.

  • Page 29: Burner Assembly

    Burner / Heat Exchanger Assembly To check for proper fi eld operation of the ceramic radiant burner, measure the carbon monoxide (CO) of the fl ue gasses at 100% demand. If the CO level measured in the fl ue gasses is above acceptable levels (greater than 60 ppm) refer to Figure 19-3 for proper check points, the burner system should be serviced.

  • Page 30: Removing / Replacing Heat Exchanger

    Removing / Replacing Heat Exchanger Press the manual drain button. Allow unit to drain completely. Turn off gas, electricity and water supply to the unit. Using a vacuum, remove all dust from the control cabinet area, and blower assembly. Disconnect the gas piping going to the gas valve. Disconnect wiring harness to the blower assembly.

  • Page 31: Troubleshooting

    Troubleshooting Error List Error 1 “E1: INITIAL FILL TIME OUT” - Unit has not reached low level during initial fi ll in time allotted within menu 007 Error 2 “E2: LOW WATER LEVEL” - Water level has dropped below low level probe during normal operation Error 3 “E3: FILL TIME OUT FROM LOW TO HIGH”...
  • Page 32 Troubleshooting E1: INITIAL FILL TIME OUT • Check wire at low level probe for loose connections and to GFH board at location X1-60 also confi rm continuity between them. • Ensure connections between reference sensor probe and X1-62 and also a ground. •...
  • Page 33 • Verify water pressure to the solenoid valve. Water pressure must be 25-125 psi. • High level probe in water level canister may need cleaning. • Possible faulty fi ll valve. • Drain valve may be stuck open or leaking by. •...
  • Page 34 E7: IGNITION BURNER 2 ERROR • Along with this error check the White Rodgers Ignition Control board for a Bink Code error. • Confi rm gas is turned on. • Check connections to gas valve on the burner. • Confi rm good connection at ignitor connector and fl ame detecting rod. Check voltage at ignitor connector, this voltage should be 120VAC.
  • Page 35 E10: BLOWER 1 PRESSURE SWITCH • Along with this error check the White Rodgers Ignition Control board for a Blink Code error. • Check for any loose or disconnected wires and connectors. • Check connections on blower, ensure no damage to the pins. •...
  • Page 36 • Confi rm 120VAC at supply EBM connector (note: supply EBM connector is located on the back of the EBM blower with a 3 pin molex connector.) • Confi rm voltage at control EBM connector between pin 1 and pin 5, this voltage should be in the range of 20 to 40 VDC (Note: Control EBM connector is located on the front of the EBM blower with a 5 pin molex connector.) •...

  • Page 37: Clearing Error Codes

    Clearing Error Codes After troubleshooting, pressing the manual drain followed by down button then the manual drain will reset errors. Normal operation will be started as described in the start-up prodcedure. White-Rogers Gas Control Board Diagnostics When the unit experiences a burner error the White Rogers board will show blink code in the bottom left hand corner of the board in the form of a red LED.

  • Page 38: Wiring Schematics

    Wiring Diagram GFH150...
  • Page 39 Wiring Diagram GFH300...
  • Page 40 Wiring Diagram GFH450...

  • Page 41: Parts List

    GFH Series Gas Fired HumidiClean Parts List Item Number Part Number Description A21583 Drain Valve A20272 Fill Valve D27244 Liquid Level Canister – – D27212 15 Vac Transformer B2960 Low Level Safety Probe D27109 Display Board D27108 Main Board A21973 Transformer 120/240v C5379 Ignition Control Module...
  • Page 51 The sole and exclusive remedy with respect to the above limited warranty or with respect to any other claim relating to the products or to defects or any condition or use of the products supplied by Armstrong, however caused, and whether...
  • Page 52 Armstrong provides intelligent system solutions that improve utility performance, lower energy consumption, Armstrong provides intelligent system solutions that improve utility performance, lower energy consumption, and reduce environmental emissions while providing an “enjoyable experience.” and reduce environmental emissions while providing an “enjoyable experience.”...

This manual is also suitable for:

Humidiclean gfh-150Humidiclean gfh-300Humidiclean gfh-450

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