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User and Maintenance Manual

for the Homeowner

and

Installation Instructions

for the Contractor

ACU-STEAM™ Humidifi er

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.

 

 

JANUARY 2014 V2.0 US

!

A

CU  STEAM

Содержание ACU-STEAM

Страница 1: ...or 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 JANUARY 2014 V2 0 US ACU STEAM ...

Страница 2: ......

Страница 3: ...1 4 Do not install a humidifier where the surrounding temperature may be 32ºF 0ºC or colder Freezing water will damage the humidifier 1 5 Do not install the humidifier directly on the furnace housing 1 6 Always check that you are not about to cut or drill into an air conditioning coil or electrical accessory during installation 1 7 Do not install a humidifier if the city water pressure exceeds 90 ...

Страница 4: ...idifier Fig 2a 2 2 Water Tank Top View Please see Fig 2b 2 3 Water tank Side View Please see Fig 2c ACU STEAM 9CVGT GXGN 5GPUQTU 6QR 8KGY 5VGCO 1WVNGV GCVKPI NGOGPV 9CVGT 6CPM CEVQT KPUVCNNGF YKVJ JQUG PVGTPCN TCKP 1WVNGV NGEVTKE 8CNXG 6CPM QXGT 6CPM CVEJ CPWCN 6JGTOCN WVÄ1WV Fig 2c Fig 2b Acu 15 model has two steam outlets ...

Страница 5: ...umidifier starts boiling water and producing steam If the fan cannot start i e there is no air movement to transport the steam or insufficient air pressure the humidifier stops itself Please note that it may take a few minutes to bring the water to a boil The steam exits the water tank through the steam hose moves through the steam diffuser installed in the warm air duct and is released into the d...

Страница 6: ...iddle of the scale corresponds to the middle of the comfort zone approximately 35 RH Relative Humidity Note There are no numbers printed on the Humidistat itself 4 3 If you are using a humidistat by others the humidity adjustment according to the outside temperature might have to be done manually For your information the following table shows the recommended setting of the humidistat according to ...

Страница 7: ...med Shutting the power OFF at the breaker in the main panel or depressing the power button until the green light is fully on will reset the error code 5 2 The ACU STEAM humidistat also has two pilot lights to indicate the current status The green light is lit when the humidistat is demanding for humidity thus activating the boiling cycle The red light indicates a warning and reproduces the same wa...

Страница 8: ... 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 ...

Страница 9: ...er supply The supply valve was open for more than 6 minutes Humidifier immediately suspends the ongo ing operation Heating elements and supply valve are switched off The power green light is blinking Turn power off Check SW valve circuit for 24V DC at the valve Refer to manual p 20 and check for proper drain installation Make sure SW shut off valve is open SW valve is responding and SW tube is cle...

Страница 10: ...still run with the knob at the minimum setting because of a range limiter inside the cover If this occurs you will need to remove the humidistat cover by pulling it off and turning the knob completely counter clockwise The main power to the humidifier the breaker at the main panel not the power button on the unit needs to be turned off and then back on Once the power is reset the unit will start f...

Страница 11: ...ttom sidewalls and interal components which is a normal byproduct of boiling water containing minerals Simply discard the scale from the bottom of the tank leaving the scale on the tank sidewalls and elements it will not adversely affect the operation of the unit Clean the scale from the bottoms of the stainless steel water discharge and water supply tubes using vinegar or a cleaning product desig...

Страница 12: ...ooking the key hole on the front screw 8 10 Reconnect the white wire of the overflow sensor on the overflow pan 8 11 Put the overflow and main drain tubes back into the rigid drain pipe 8 12 Put the cover back on the humidifier and lock it with the quarter turn screw 8 13 When finished turn the main power back ON ...

Страница 13: ... and high water level sensors every 2 to 4 years We also suggest you replace the round o ring gasket around the tank All these components are available in a kit Contact your service company for more information 9 2 To prepare for the Summer Season Perform a complete maintenance as described in section 8 Shut the main power OFF Close the water supply valve Dry the inside of the tank ...

Страница 14: ... steam humidifier or any repair by persons other than a certified technician carried out without Thermolec s written consent voids the warranty 10 4 All defective parts must be claimed within the warranty coverage period and shall be replaced at no charge transport included by Thermolec Thermolec does not cover the labor costs to execute the said repairs 10 5 Thermolec will not be held responsible...

Страница 15: ... inside cabinet 1 Plastic bag containing installation material and hardware as follows 2 ea Adjustable hose clips for the steam hose 4 clips for Acu 15 1 ea Small bag KIT 10S 1 ea Water supply tube 1 4 dia x 7 long 1 ea Overflow tube for the overflow pan 7 16 dia x 24 long 1 ea Pitot tube with plastic tube 5 16 dia X 48 long NOTE The electronic humidistat and the outdoor reset sensor are optional ...

Страница 16: ...lable Models 12 1 Humidifier dimensions Fig 12a 12 2 Available models Fig 12b 14 13 11 5 8 9 ACU STEAM Capacity Model Lbs Hr Power Voltage Current Kg Hr Kw V A Acu 5U 4 8 2 2 1 5 120 12 5 Acu 10U 9 6 4 4 3 240 12 5 Acu 15U 12 8 5 9 4 240 16 6 ...

Страница 17: ...ing View of the top of the unit Fig 13a Green Yellow White Red Red Black Black Blue Blue Heating Element Electric Valve Steam Outlet Acu 15 model has two steam outlets Level Sensors High Level Low Level Manual Thermal Cut out Overflow Pan White ...

Страница 18: ... 6JG FT EQPVCEV KU TCVGF CV CORU 8 6JG CNCTO HWPEVKQP KU PQV CXCKNCDNG QP TGUKFGPVKCN OQFGNU 2ÄUYKVEJ VQ CFLWUV VJG VCPM HNWUJ KPVGTXCN 6JG DWKNVÄKP CKT HNQY UYKVEJ KU HCEVQT YKTGF VQ VJGUG VGTOKPCNU QPPGEV VJG JWOKFKUVCV UWRRNKGF YKVJ VJG JWOKFKHKGT VQ VJG EQPVTQN DQCTF CEEQTFKPI VQ VJG YKTKPI FKCITCO UWRRNKGF Description of Wire Harness Color Function Connected to Green Grounds the electronic bo...

Страница 19: ...t make the 1 1 8 hole in the middle of the duct Please see Fig 14b Note For High Velocity systems the diffuser should be installed in the RETURN and not the warm air duct Warning Before installing anything on a duct always check that you are not about to cut or drill into an air conditioning coil or electrical accessories 14 2 Insert diffuser in duct and align arrow to point up Fasten the steam di...

Страница 20: ...low back naturally to the water tank Please see Fig 14f If condensation water accumulates in the hose the steam will not be able to escape normally through the diffuser and will lead to a malfunction of the humidifier Please keep in mind that the hose will soften when heated and will have a tendency to sag NOTE If it is not possible to get enough slope for the condensation to return properly to th...

Страница 21: ...low sensor 15 3 Remove the overflow pan by lifting the front off its holding screw and pull towards you Do not remove those screws from the humidifier middle wall 15 4 The humidifier must be installed on a vertical flat surface i e wall or vertical furnace duct Because of the length of the steam hose supplied select the location of the unit as close as possible within a maximum of 4 feet of the di...

Страница 22: ...ith water level sensors it is important to install it level from left to right and from back to front 15 7 Draw a level horizontal line on the wall and install two screws 8 minimum spaced at 11 5 8 from each other to hook the humidifier on the wall then install two screws at the bottom of the unit and tighten them partially 15 8 Level the unit and tighten the four screws firmly Water Hammer Absorb...

Страница 23: ...bsorber connect the water supply tube using the same type of fitting used on the water supply valve Tighten the compression nut without stripping with two wrenches one to hold the water hammer end and one to turn the compression nut Please see Fig 16a NOTE The brass sleeve supplied in kit 10S is to be used only if the plastic supply tube is replaced by a copper tube Either system works with this h...

Страница 24: ...h of 18 to allow the siphon to work properly It is important to leave an air gap between the soft tubes and the rigid pipe 16 6 Open the water supply valve fully counter clockwise to bring water to the humidifier and let the water pressure enter the system 16 7 Follow the water supply path completely and carefully check for leaks at the fittings ...

Страница 25: ... Drill a hole 3 8 dia in an accessible location in the air duct 17 4 Insert the probe and fasten it s base to the duct using two sheet metal screws The arrow visible on the probe flange indicates the air flow direction in the duct i e the curved end of the probe has to face the air flow Please see Fig 17a and Fig 17b 17 5 Push one end of the plastic tube onto the probe outlet Slip the other end of...

Страница 26: ...letely drain and refill with fresh water after a set number of refill cycles Every time the unit replenishes the tank while producing steam is counted as one cycle The table below shows how to set the DIP switches in order to make the unit flush the tank at different intervals To keep deposits in the tank to a minimum by default the tank will flush every 30 cycles which equals approximately 5 hour...

Страница 27: ...tat with outdoor sensor please refer to the instructions included with the humidistat see page 4 sections 4 1 through 4 5 explain the functions of the Acu Steam wall and duct humidistats If you decide to use a standard mechanical humidistat by others connect the mechanical humidistat between the terminals marked GND ground IN input on the humidifier electronic board ...

Страница 28: ... air 20 7 As water evaporates in the tank the electric valve opens as needed to maintain the proper water level 20 8 When the humidity reaches the desired level the humidifier stops producing steam In order to eliminate the residues and keep the tank as clean as possible the humidifier drains after a certain number of boiling refill cycles If there is still a demand from the humidistat after drain...

Страница 29: ...er is turned off hence the unit might start at step 2 or 3 when you put the power back on Also timings may slightly vary depending on the capacity of the unit 1 5 kW 3 kW or 4 kW the pressure of the water inlet and the quality of the water 20 12 Please don t forget to leave this instruction manual with the customer ...

Страница 30: ... LEVEL SENSOR LOW LEVEL SENSOR PRESSURE DIFFERENTRIAL SWITCH MANUAL RESET CUT OUT 225ºF BACK UP RELAY OPERATING RELAY PRINTED CIRCUIT BOARD HE H STAT S 15 R GND HLS FS V1 T K1 K2 LLS PDS IMPORTANT E400 M LEGEND NO NO K1 COM K2 COM FS FU 250mA S 15 FU CONTROL FUSE INPUT IN 24 G FAN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 H STAT WHITE YELLOW 240VAC GND L2 L1 G A A ACU STEAM HUMIDISTAT OPTION OPTION GND ...

Страница 31: ...EAM HUMIDIFIER CONTROLLER COM COM K2 K1 NO NO F2 S 15 HE CIRCUIT DE VENTILATEUR FAN CIRCUIT R 24VAC R PRINTED CIRCUIT BOARD OPERATING RELAY BACK UP RELAY TO THERMAL CUT OUT MANUAL RESET CUT OUT PRESSURE DIFFERENTRIAL SWITCH LOW LEVEL SENSOR HIGH LEVEL SENSOR ELECTRIC VALVE 24 VDC TRANSFORMER FLOOD SENSOR HEATING ELEMENT ROOM OR DUCT HUMIDISTAT FAN RELAY GROUND CONNECTION OUTDOOR SENSOR BEFORE WIRI...

Страница 32: ...Page 30 CONTRACTOR ...

Страница 33: ...d ON 4 Inadequate drainage The tank did not drain or the draining cycle is too long Humidifi er immediately suspends the ongoing operation Heating elements and supply valve are switched off The power green light is blinking Turn power off Check for proper drain setup by referring to manual p 20 Check and clean tank SS siphon tube and silicon drain tube if necessary Automatic Reset when switching m...

Страница 34: ...HUMIDISTAT ...

Страница 35: ...HUMIDISTAT S 15 ELECTRONIC HUMIDISTAT AND OUTDOOR SENSOR INSTALLATION INSTRUCTIONS ACU STEAM Jan 2008 V1 2 ...

Страница 36: ...arity 1 in the Set point range Differential RH 2 Outdoor Temp Reset Range between 9 F 23 C to 27 F 3 C Outdoor reset Temperature vs Set point change 28 F 2 C and warmer No change 27 F 3 C to 23 F 5 C 42 max 22 F 6 C to 18 F 8 C 38 max 17 F 9 C to 12 F 11 C 34 max 11 F 12 C to 5 F 15 C 30 max 4 F 16 C to 2 F 19 C 26 max 3 F 20 C to 9 F 23 C 22 max 9 F 23 C and colder 20 max NOTE these ranges can va...

Страница 37: ...ND 24V to 24V ST1 to IN 1 3 The outdoor sensor S 15 please see Fig 1c is supplied with the humidistat wall or duct mount It ideally should be installed on an outside wall facing North This outdoor sensor automatically reduces the setting of the humidistat according to the outdoor temperature in order to avoid condensation on windows during extremely cold days It does the opposite during the mild d...

Страница 38: ...g steam simply turn down the humidistat Please note that when using an ACU STEAM electronic humidistat if the relative humidity is extremely low the humidifier may still run with the knob at the minimum setting because of a range limiter inside the cover If this occurs you will need to remove the humidistat cover by pulling it off and turn the knob counter clockwise to the minimum setting The humi...

Страница 39: ...HUMIDISTAT 5 8 dia DRILLING TEMPLATE FOR DUCT MOUNT HUMIDISTAT ...

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