Installation, Operating and Maintenance Manual Read And Save These Instructions
IMPORTANT WARNINGS BEFORE INSTALLING OR HANDLING THE APPLIANCE PLEASE CAREFULLY READ AND FOLLOW THE INSTRUCTIONS AND SAFETY STANDARDS DESCRIBED IN THIS MANUAL AND ILLUSTRATED BY THE LABELS ON THE MACHINE. This humidifier produces non-pressurized steam using electrodes immersed in the water contained in the plastic steam generator cylinder. The electrodes pass electrical current through the water, to produce steam.
Installation, Operating and Maintenance Manual Table of Contents 1: REMOVE HUMIDIFIER FROM BOX AND OPEN ............................................................................. 4 2: MOUNTING THE HUMIDIFIER............................................................................................................ 5 POSITIONING .................................................................................................................................................. 5 MOUNTING.....................
1: Remove Humidifier From Box And Open Twist GeneralAire brand badge on the front cover of the cabinet to uncover the hidden capture screw underneath the right side. Remove capture screw using a phillips screwdriver. (take care not to lose the screw) Lift cabinet front cover upward about 1” and then pull forward to remove.
Installation, Operating and Maintenance Manual 2: Mounting The Humidifier Positioning The humidifier unit should be mounted as close as possible to the steam distributor nozzle or blower unit to minimize steam hose length and condensate losses. The unit has been designed for wall-mounting, and the wall must be able to support the weight of the unit in normal operating conditions (See bottom of page).
3: Steam Distribution Room Distribution The room distribution unit is used to distribute the steam directly into the room, and is supplied premounted to the top of the humidifier. The drawing shows the minimum distances required to prevent humidified air from coming into contact with persons, or surfaces before the steam has been totally absorbed by the air.
Installation, Operating and Maintenance Manual Duct Distribution If a duct steam distribution nozzle is to be used, selected an accessible location on the duct, allowing at least 18” of straight duct (no elbows or obstructions) after the point where the nozzle will be installed and the clearances can be maintained as per the following drawings. To mount the steam distributor nozzle, cut or drill a 2-1/2” hole in the duct. Apply caulk to the mounting plate of the nozzle.
If necessary, support the steam hose using braces or other supports. DO NOT try to pipe the steam to two different ducts or air handlers. The condensate hose should be trapped as shown in the two drawings above. This is to prevent steam from flowing through it. The condensate is wasted, either to the nipple on top of the humidifier, or to a separate drain. DO NOT put condensate into the humidifier fill cup. Hose clamps are provided for the 7/8” I.D. steam hose as well as for the 5/16” condensate hose.
Installation, Operating and Maintenance Manual 4: Plumbing Connect Water Drain The humidifier periodically drains some hot water to remove mineral build-up in the steam cylinder. This water is generally in the range of 140 to 200°F, so the drain piping must be CPVC or copper. The drain line should be 1-1/2” diameter CPVC. Slip the 1-1/2” pipe over the drain outlet on the bottom of the humidifier as shown at right. Do not glue to the humidifier.
5: Power Wiring Feed power wiring through strain relief in bottom of humidifier and tighten around wiring cable. Connect power wires into terminals N and L. A green/yellow ground terminal (which is also the chassis ground) is provided for connection of the ground wire. Power supply Rated specifications Voltage (1) (V - Type) current (2) (A) power (2) (kW) Steam output (lbs/hr) wire size power fuses (4) (A / type) wiring diagram 230 – 1 N 10.4 2.
Installation, Operating and Maintenance Manual 6: Controls Wiring Mount The Humidistat Please refer to the installation Instructions included with the Humidistat. Mount 12500 Air Pressure Switch (DS-20 Only) Mount Air Flow Switch on a vertical surface. Switch must be oriented vertically with the hose connections pointed down. Do not mount switch on or in warm air plenum. Use care when locating mounting holes so as not to damage furnace electronics, fuel lines, combustion chamber, etc. Mount Plenum Probes.
Wire The Controls The AB-AB circuit is completed through the 12500 Pressure Switch (“NO”, “C” terminals) and the E1 Humidistat (“OUT” terminals). Two pigtail wires are provided inside the electrical compartment of the humidifier. This “AB” to “AB” circuit is the low-voltage control for the humidistat and air pressure switch. The humidifier will run when the AB-AB Circuit is completed.
Installation, Operating and Maintenance Manual 7: Start-Up And Shut-Down Important Warnings: Before starting, check that the humidifier is in perfect condition, that there are no water leaks and that the electrical parts are dry; Do not connect power if the humidifier is damaged or even partially wet; When installation is completed, flush the supply tubing for several minutes by piping water directly into the drain, without sending it into the humidifier.
Once started, the LEDs on the control panel at the bottom front of the humidifier will glow to indicate operation LED Green Yellow Red Position Means Left Power on Center Humidification in progress Right Signals and alarms. These are indicated by specific flashes. Sequence Of LED Flashes On Start-Up On start-up, the humidifier performs a sequence of flashes of the LEDs on the front panel.
Installation, Operating and Maintenance Manual If during a shut-down the cylinder needs to be emptied, (which is recommended for seasonal shut down) press the drain button (down arrow) and hold until the water has been completely emptied, before disconnecting power from the unit. In the event of a malfunction of the drain valve, the cylinder can be emptied by lifting it from the bottom connection and slowly pouring the water into the drain pan.
9. Alarms, Troubleshooting Alarms are indicated on the front display panel by a sequence of flashes of the red alarm LED. In the event of more than one alarm, these are indicated in sequence. Even if no longer active, the alarm status continues to be displayed by the flashing of the LED and the operation of the humidifier is stopped while the alarm is still present. To clear the inactive alarms, the humidifier must be turned off, and then on again. Active alarms cannot be reset by restarting the machine.
Installation, Operating and Maintenance Manual Troubleshooting table Problem The humidifier does not turn on The humidifier does not start operation The humidifier fills with water without producing steam Causes 1.No electrical power; 2.On/Off switch of the humidifier in Off position (O); 3.Improper connection; 4.Blown fuses; 5.Transformer fault; 6.Humidistat or air flow switch not closed Solution 1.Check the external fuses and breakers and for power at the humidifier; 2.
10. Maintenance And Spare Parts Replacing The Cylinder WARNING: the cylinder may be hot. Allow it to cool before touching it or use protective gloves.
Installation, Operating and Maintenance Manual Cleaning The Drain Valve Remove the drain valve group and disassemble it. Clean all parts in the same way as the fill valve, reassemble and reinstall. After cleaning and reassembly, restart your humidifier according to the Startup Instructions contained in this manual. Hydraulic Parts No.
Fuses in the auxiliary circuits The dimensions of these are 10.3x38 mm and are contained in cartridge-type fuse holders; to check the condition of the fuses, check continuity using a tester. Use fuses with the settings indicated in the following table. Fuses 1- 2 Fuse 3 * 1A fast-blow 2A slow blow * 5 x 20 mm, only on the control board. Spare parts Description Duct Steam Nozzle Steam Hose Condensate Hose Fill Connector Fill Cup Drain Valve Internal Tubing Kit Power Transformer 208-230/24v.
DRAIN VALVE STEAM BOILER UNIT LS FILL VALVE FILL CUP CS Display Module AB AB GND SET +VR RELAY 1 ON/OFF REMOTE FACTORY JUMPER N1 L1 FUSE TAM R G V DIP Switch EXTERNAL SIGNALS CONTROL MODULE RELAY 2 SCR+ SCR- ID1 GND ID2 CS CS LS LS G EV3 EV1 G EV2 DR GND ON TP TP G GO FAN Manual Drain Switch MS F1 F2 L GND INPUT POWER N { RS-20 ONLY Installation, Operating and Maintenance Manual 11.
12. Technical Specifications DS-20 Duct Kit Model rated power supply voltage (Vac) steam connection (φ inches) steam outlet pressure limits (inches w.c.
Installation, Operating and Maintenance Manual LIMITED WARRANTY The DS-20 and RS-20 humidifiers, if properly registered by the return of the attached warranty registration to General Filters, Inc., are warranted to the consumer against defects in materials and workmanship for a period of two years from the date of installation, so long as the product has been installed and operated in accordance with all appropriate manuals and wiring diagrams.
General Filters, Inc. 43800 Grand River Novi, MI 48375-1115 USA WWW.GeneralAir.com CGF Products 39 Crockford Blvd Scarborough, ON M1R 3B7 CANADA WWW.CGFProducts.com Form 20-17 rev.
