User and Maintenance Manual for the Homeowner and Installation Instructions for the Contractor ACU-STEAM™ Humidifier by Thermolec ! Please read this manual carefully before beginning installation. Important Notice to the Contractor : Once the installation is complete, please leave this manual with the customer for future reference. July 2010 V1.
1. Warnings and Disclaimer – Installation Precautions 1.1 1.3 1.6 1.8 1.9 1.10 1.11 1.13 1.14 1.15 1.16 This humidifier will be connected to and used under water pressure and it must be installed in such a way that if a leak occurs, the water could not cause any damage to the property. Make sure all water connections are properly installed or a water leak could occur. Do not install a humidifier where the surrounding temperature may be 32ºF (0ºC) or colder.
Instructions and User Manual for the Homeowner View of the unit 2.1 External view of the humidifier. Fig. 2a HOME OWNER 2. ! 2.2 Water Tank Top View. Please see Fig. 2b. 2.3 Water tank Side View. Please see Fig. 2c. Fig. 2b Fig.
Startup 3.1 The startup of the humidifier is done in as follows : Put the main power ON at the electrical panel. The green pilot light comes ON. The humidifier is ready to work. Open the water supply valve. Adjust the knob on the humidistat. Working Principle : 3.2 Unlike other types of humidifiers which produce humidity by passing warm air on a water curtain, a rotating pad or another type of media, this humidifier produces humidity from steam dispersed directly into the air. 3.
HOME OWNER 4. How to Control the Humidity 4.1 Humidity level and comfort are personal matters but it is generally acknowledged that a Relative Humidity of 35-40% is desirable. However, you should take the outside temperature into consideration before setting the humidity level in order to avoid condensation on the windows. Usually, a narrow strip of condensation around or at the bottom of the window is considered as normal. 4.
Functions of the Electronic Circuit 5.1 The electronic board located inside the unit controls all the humidifier functions. The front panel is equipped with pilot lights indicating the status of the humidifier. Please see Fig.5a. Please refer to Article 5.2 for the description of the functions. The red pilot light, which is a warning light, can either glow all the time or flash when activated. In case of error, the humidifier enters stand-by mode.
HOME OWNER ! Warning Red light ON An abnormal condition occurred. Please refer to the error code table in Section 7. Steam White light ON The humidifier is heating water to produce steam. Filling cycle Blue light ON The electric water valve is open thus filling the humidifier. Draining cycle Yellow light ON The humidifier is in draining mode. White button Not active on residential models.
What To Do if a Malfunction Occurs 6.1 Shut the main power OFF and restart the humidifier to see if the error code disappears. 6.2 If you see a water leak, follow the water supply tube and close the valve installed on the water pipe located near the humidifier. 6.3 Please refer to the error code table to identify the possible cause of the malfunction and the actions that you can take. 6.4 Should the problem persist, please call your service company. They are the best qualified to help you quickly.
8. Cleaning the tank HOME OWNER As with any device evaporating water, some minerals normally dissolved in the water may create deposits inside of the unit. Even though the unit is draining and cleaning itself during normal operation , it will require a bit of maintenance from time to time. WARNING : The water tank and its contents can become extremely hot. Please be careful when you handle it. The tank may have water inside. 8.
8.6 Check that the water tank is not too hot to handle. Unfasten the latch around the water tank and remove the tank from the main body of the humidifier by pulling it down. When you remove the tank, it is possible to clean the round o-ring gasket, but don’t discard it. NOTE :This round gasket is mandatory and the unit will not work properly without it. 8.7 Soap or vinegar can be used to clean the water tank, the heating element and the tips of the level sensors.
HOME OWNER 8.9 Put the overflow pan under the tank by sitting it back on its holding screws. 8.10 Reconnect the white wire of the overflow sensor on the water pan. 8.11 Put the overflow and main drain tubes back into the rigid drain pipe attached to the wall. 8.12 Put the cover back on the humidifier and lock it with the two quarter-turn screws. 8.13 When finished, turn the main power back “ON”.
Preventative Maintenance 9.1 Preventive maintenance to be performed every two years. In order to avoid problems due to accumulation of deposits, we suggest that you replace the centre metal tube, the silicone drain tube and the low level sensor. We also suggest you replace the round o-ring gasket around the tank. All these components are available in a kit. 9.
10. Warranty HOME OWNER 10.1 Thermolec Ltd. warrants against defects in material and workmanship the steam humidifier and all its components for one (1) year after date of shipment from its factory. 10.2 Any claim under this warranty shall be considered only if the product has been installed and operated in accordance with Thermolec’s written instructions. 10.
Detailed Instructions for the Contractor 11. Unpacking the Unit 11.1 Contents Please inspect the carton’s contents and report any missing parts or damage immediately. 1 Plastic bag containing installation material and hardware as follows: 2 Adjustable hose clips for the steam hose 1 Water hammer absorber (Red rubber hose with two brass fittings) 1 Small bag - KIT #10S 1 Water supply tube (1/4” dia. x 7’ long) 1 Overflow Drain tube for the pan (7/16” dia.
12. Dimensions and Available Models 12.1 Humidifier dimensions Fig. 12a 11 5/8” 14” CONTRACTOR ! 9” 13” 12.2 Fig. 12b Available models Model Acu-5-SP Capacity Lbs/Hr (Kg/Hr) 4.8 (2.2) Power (Kw) Voltage (V) Current (A) 1.5 120 12.
Detailed View and Wiring Fig. 13a View of the top of the unit. Black Steam Outlet Electric Valve Heating Element Black CONTRACTOR 13.
White Yellow Red Red Blue Blue Green View and list of the wire harness by color and function. Please see Fig. 13b & Fig. 13c.
Note: Please read sections 14 and 15 before proceeding. 14. Installing the Steam Hose and the Fan module NOTE: This unit is supplied with 2 feet of steam hose and therefore the distance between the fan module and steam generator should be less than two feet, see figure 14a. Longer hoses at a length of 4 feet are available from Thermolec. For distances up to 12 feet, a section of insulated copper pipe can be connected between two pieces of steam hose.
14.3 Attached the mounting flanges to the fan module with the screws provided but do not tighten the screws so that the flanges are able to slide along the slots. Slide the fan module into the wall until the front edge is flush with the wall, figure 14c. Tighten the screws holding the tabs so that the front remains flush with the wall. Level the unit and screw the flanges to the wall. flush CONTRACTOR Fig. 14c 14.4 Push the faceplate on the front until is snaps into place.
15. Installing the Humidifier For ease of service, keep a minimum space of 24” in front of the unit. 15.1 Remove the cover by turning the two 1/4 turn screws to the left and pull the cover towards you. 15.2 Remove the white wire connected on the water pan at the bottom of the unit. This is the overflow sensor. 15.3 Remove the water pan by lifting the front off its holding screw and pull towards you. Do not remove those screws from the humidifier middle wall. 15.
also install a siphon (P-trap) with a drain cap. The two flexible tubes coming from the humidifier and which will be inserted in the rigid pipe, require a minimum free vertical length of 18”. It is very important to leave an air gap between the rigid pipe and the tubes to allow the siphon to function properly. The flexible tubes cannot touch any water contained in the drain pipe. Please see Fig. 15b.
Never install the humidifier directly on the furnace body as this could void your furnace warranty. 16. Installing the Water Supply Important Notes : Turn off the main water supply before beginning. The supply valve (not supplied) must be attached to a cold water pipe only, close to the humidifier. Since the unit is draining hot water, cold water is added to reduce the temperature before sending the water to the drain.
18. Making Electrical Connections NOTE : All internal wiring is done at the factory. All external wiring shall be done by a qualified electrician and must conform to procedures, regulations and local codes. 18.1 A dedicated breaker in the main panel (or fused disconnect) must be installed. 18.2 The voltage of the available power supply must be the same as the one required by the humidifier. 18.3 Ensure that the wire size and protection equipment conform to the sizes required by the Electrical Code.
19. Installing and Connecting the Humidistat CONTRACTOR 19.1 See wiring diagrams in section 21 for proper connection. If you are using an ACU-STEAM electronic humidistat with outdoor sensor please refer to the instructions included with the humidistat. If you decide to use a standard mechanical humidistat, connect the mechanical humidistat between the terminals marked GND (ground) & IN (input) on the humidifier electronic board.
20. Start-up and Test Procedure 20.1 Take the 5/16 dia. plastic tube previously uncoiled and push one end on the connector located at the bottom of the overflow pan. Please see Fig. 20a and Fig.20b. Fig. 20a CONTRACTOR Fig. 20b 20.2 Install the overflow pan under the tank by sliding it on its holding screws. You don’t have to tighten the screws. 20.3 Reconnect the white wire for the overflow sensor on the water pan. 20.4 Cut the two drain tubes and insert them in the rigid pipe.
drains. In order to eliminate the residues and keep the tank as clean as possible, the humidifier also drains after a certain number of boiling – refill cycles. If there is still a demand from the humidistat after draining, the tank refills and starts to produce steam again. 20.15 When the humidistat is satisfied, the fan continues to run for a short period of time in order to eliminate the steam from the ducts. 20.
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G HE N L NEUTRAL NEUTRE FAN N L F2 NO NO N L K1 COM 250mA FU K2 COM VERT 1 VERT 2 3 T 4 5 6 FAN SENSOR G 24 A ROUGE BLEU BLEU BLUE WHITE BLANC HUMIDISTAT IN GND A HLS 24V JAUNE A FS H-STAT S-15 ACU-STEAM HUMIDISTAT OPTION A BLANC WHITE M CONTRACTOR G 24 IN H-STAT STANDARD HUMIDISTAT OPTION FAN E400 LLS RED RED V1 GREEN YELLOW BLUE 7 8 9 10 11 12 13 14 15 ROUGE FAN POWER ALIMENTATION DU VENTILATEUR GND GREEN GND G ST1 INPUT / ENTRÉE 120 VA
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Page 29 Temperature inside the tank exceeded the high temperature cut-out setting. 6 Automatic Reset when error conditions disappear CONTRACTOR After pushing on the Turn the main power OFF, then thermal cut-out button, - Check the steam hose for kinks automatic reset when or blockage switching main power - This is a very serious condition ON The high temperature cut-out has tripped. The humidifier immediately suspends the ongoing operation. Heating elements and supply valve are switched off.
