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SKR Humidifier – kit N 

User Manual 

 

www.neptronic.com

 

 

16

 

11.  Start up procedure 

 

Follow this start-up procedure to avoid improper system operation: 

1.  Ensure that steam distribution, electrical and plumbing connections have been done in accordance with the 

instructions in this manual. 

a)  Remove the humidifier cover. 

CAUTION:  RISK  OF  ELECTRIC  SHOCK,  ENSURE  THAT  THE  POWER  IS  TURNED  OFF  BEFORE 
REMOVING THE COVER. 

b)  Ensure that the control wiring has been made in accordance with the instructions in this manual. 

c)  Ensure that dip switches (section 10, DS1) are correctly set. 

d)  Verify that the drain connections are connected to an open main drain of sufficient diameter. 

e)  Re-install the humidifier cover. 

 

2.  Open the water shut off valve (external to the humidifier). 

3.  Turn on the power to the humidifier at the breaker/fused disconnect. The ''

POWER

'' indicator, located on the 

control panel, will flash. 

4.  Press the ''

POWER

" push button located on the control panel. The ''

POWER

" indicator will stay on 

continuously. 

5.  Perform a manual cleaning cycle: 

a)  The fill cycle is activated automatically when the evaporation chamber does not contain water. 

b)  When the ''

FILL

'' indicator is off, press the “

DRAIN

” push button. 

c)  The ''

DRAIN

'' indicator will come on and the water will drain from the evaporation chamber. 

d)  The evaporation chamber will fill with water and drain again. 

e)  When the ''

DRAIN

'' indicator turns off, press on the ''

POWER

" push button. 

f)  Repeat steps ''b'' through ''e'' one more time to ensure proper cleaning of the evaporation chamber. 

6.  Your  humidifier  is  now  fully  operational.  No  other  action  is  necessary;  your 

SKR

  humidifier  will  produce 

steam upon demand from control(s). 

 

12.  Description of operation of the SKR 

 

Press the ''

POWER

'' push button (if the indicator is flashing) to start the humidifier (''

POWER

'' indicator will 

light  continuously).    If  the  evaporation  chamber  does  not  contain  water,  the  fill  cycle  is  activated 
automatically (''

FILL

'' indicator is on). 

 

If there is no demand from the humidity controller, the humidifier is in a standby mode (''

STEAM

'' indicator is 

off). 

 

On  a  demand  of  humidity,  the  contact  to  activate  the  ventilation  system  fan  closes  (''

FAN

''  indicator  is  on) 

and the relays close to power the electric element in the evaporation chamber (''

STEAM

'' indicator is on). 

 

The  water  in  the  evaporation  chamber  will  start  to boil  and  evaporate.   The  steam  is  released  through  the 
opening  in  the  cover  of  the  evaporation  chamber.  The  steam  will  travel  in  the  flexible  steam  hose  and 
disperse inside the supply duct through the steam dispersion tube. 

 

During  the  evaporation  sequence,  a  certain  amount  of  water  is  evaporated.    The  water  supply  valve  will 
open to replenish the water in the evaporation chamber. 

 

Depending  on  the  selected  drain  period  (section  10,  DS1-1),  the  water  in  the  evaporation  chamber  will  be 
drained  (''

DRAIN

''  indicator  is  on)  to  renew  the  water  and  to  evacuate  the  minerals  inside  the  evaporation 

chamber. 

 

The 

SKR

 operates at full capacity until the programmed humidity level set point is reached.  When the set 

point is reached, the humidifier  will revert to standby  mode.  The contact to activate the ventilation system 
fan (section 10, TB-2) will remain closed for a period of four minutes after steam production has stopped. 

 

When  the  humidity  level  is  below  the  set  point,  the  humidifier  will  produce  steam  again.    If  there  is  no 
humidity demand for a period of more than 72 hours, the humidifier will drain the water from the evaporation 
chambers automatically and go into standby mode 

Summary of Contents for SKR-14 CASA

Page 1: ...SKR N eng 170426 SKR series Steam Humidifier Kit N Patent Pending Installation instructions user manual READ AND SAVE THESE INSTRUCTIONS...

Page 2: ...installation and operation as per the manufacturer s recommendations The application of these instructions is one of the conditions for the application of the warranty The application of these instruc...

Page 3: ...r supply 8 6 2 Drain connections 9 7 Power supply connections 10 8 Control diagrams 11 8 1 ON OFF Humidifier standard 11 8 2 Modulating Humidifier 12 9 Control panel display 13 10 Description of the c...

Page 4: ...ustable collars to attach the steam hose to the steam outlet 1 female fitting and a braided hose to connect the water supply For modulating humidifier only 1 resistor 500 Ohms 1 2 Humidifier overview...

Page 5: ...Requirements Steam outlet diameter in mm Weight lb kg Voltage V Current A Power KW Empty With water SKR 14 CASA 4 5 2 05 120 12 1 4 7 8 22 22 10 35 16 SKR 25 VILLA 7 5 3 41 240 11 2 5 7 8 22 22 10 35...

Page 6: ...and 8 0 20m above the humidifier The SKR humidifier should be mounted 39 to 47po 1 to 1 2m above floor for the installation of water supply drain piping and electrical connections Fig 4 4 3 Wall moun...

Page 7: ...ifier fig 7b If the humidifier cannot be the lowest point of the piping install a steam trap s S Type at the lowest point s of the steam supply piping fig 7c This trap should have a minimum height of...

Page 8: ...nimum of 18 460mm of straight duct without obstructions or elbows downstream of the dispersion tube Select an accessible location in the supply air duct For the SKR 14 25 use a template and drill a 1...

Page 9: ...0 C 3 8 10mm standard copper supply water connection To facilitate servicing a shut off valve not supplied should be installed in the water supply line close to the humidifier It is recommended to ins...

Page 10: ...d copper evaporation chamber Pan drain 1 2 13mm standard copper Water drain temperature 140 F 60 C Two pipes minimum 1 25mm by others must be inserted over the humidifier outlet pipes fig 10 This will...

Page 11: ...e required by the humidifier is the same as the available power supply Ensure that the size of the wire conductors is appropriate for the current required by the humidifier A dedicated external breake...

Page 12: ...or Building Automation System signal to close on humidity drop below set point Wire airflow switch to close when sensing air flow and open when no air flow is sensed Wire high limit humidistat to clo...

Page 13: ...t to close on drop in humidity and to open when set point is reached Wire external cut out if required to remotely switch off humidifier TB2 TB3 TB4 To fan relay To external alarm relay Pilot Dry cont...

Page 14: ...electric power FILL Indicator yellow O Water supply valve is open O Water supply valve is closed STEAM Indicator green O Humidifier is producing steam at 100 capacity O flashing Modulating humidifier...

Page 15: ...ect the airflow proving switch and the high limit humidistat see fig 12a TB5 Terminal to connect the humidistat or Building Automation System see fig 12a DS1 Dip switches DS1 setting Fig 14b Dip switc...

Page 16: ...DS1 3 Dip switch is not used DS1 4 For 4 20mA input signal set the dip switch to the OFF position and connect the supplied 500 ohm resistor between the and of the terminal block TB6 Note Depending on...

Page 17: ...from control s 12 Description of operation of the SKR Press the POWER push button if the indicator is flashing to start the humidifier POWER indicator will light continuously If the evaporation chamb...

Page 18: ...g down and draining of the evaporation chamber a Press DRAIN push button on the control panel The humidifier will initiate a drain cycle The DRAIN indicator will turn on b The DRAIN indicator is on an...

Page 19: ...warranty 10 Checking the gasket a Check the gasket The gasket should not be cracked The gasket must be replaced a minimum at every second maintenance of the evaporation chamber or after one year of op...

Page 20: ...temperature switch SKR 14 25 30 40 SP 3035 G Water level sensor assembly SKR 14 25 30 40 SW SKRLEV ASSY H Water level sensor tube SKR 14 25 30 40 SP 1025 I Water fill valve SKR 14 25 30 40 SP 6004 J...

Page 21: ...The operation of the humidifier is interrupted Check that the static pressure inside the duct at the steam dispersion tube does not exceed 0 5 W G 125Pa Check that the steam hose is not blocked or ki...

Page 22: ...uation The duct downstream of the dispersion tube is wet The installation of the steam dispersion tube is incorrect The capacity of the humidifier is too high The high limit humidistat is not installe...

Page 23: ...Connect Powered 208 or 240 Vac Mechanical compartment Transformer On Off Push button Drain Push button Drain LED Yellow Fan LED Green Access panel Alarm LED Red Power LED Green Fill LED Yellow Steam...

Page 24: ...owered 208 or 240 Vac Relays 208 or 240Vac Transformer On Off Push button Drain Push button Drain LED Yellow Fan LED Green Access panel Alarm LED Red Power LED Green Fill LED Yellow Steam LED Green TB...

Page 25: ...utton Drain Push button Drain LED Yellow Fan LED Green Access panel Alarm LED Red Power LED Green Fill LED Yellow Steam LED Green SKR Printed circuit board Dip switches TB5 External cut off 24 Vdc TB6...

Page 26: ...Drain LED Yellow Fan LED Green Access panel Alarm LED Red Power LED Green Fill LED Yellow Steam LED Green SKR Printed circuit board Dip switches TB5 External cut off 24 Vdc TB6 ON 1 2 3 4 Control dema...

Page 27: ...SKR Humidifier kit N User Manual www neptronic com 26 Notes...

Page 28: ...u blvd Montreal Qc H4N 1R6 Canada www neptronic com Toll free in North America 1 800 361 2308 Tel 514 333 1433 Fax 514 333 3163 Customer service fax 514 333 1091 Monday to Friday 8 00am to 5 00pm East...

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