Nortec 132-3091 Installation, Operation And Maintenance Manual
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Nortec 132-3091 Installation, Operation And Maintenance Manual

Nh series electrode steam humidifiers
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Maintenance Guide
IMPORTANT: Read and save these instructions. This
guide to be left with equipment owner.
Form #03-172
Installation,
Operation, and
NH Electrode
Steam Humidifiers
1506262

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Summary of Contents for Nortec 132-3091

  • Page 1 Operation, and Maintenance Guide IMPORTANT: Read and save these instructions. This guide to be left with equipment owner. Form #03-172 NH Electrode Steam Humidifiers Installation, 1506262...

  • Page 2: Table Of Contents

    PRE-INSTALLATION CHECKPOINT ........1 BASIC HUMIDIFIER CONFIGURATION ........1 LOCATION &...
  • Page 3 MAINTENANCE WHEN TO REPLACE THE STEAM CYLINDER ......10 HOW TO REMOVE THE STEAM CYLINDER ......13 MANDATORY CLEANING OF THE DRAIN VALVE .

  • Page 4: Installation

    4. After unpacking, inspect equipment for damage and if damage is found, notify the shipper promptly. 5. All NORTEC products are shipped on an F.O.B. factory basis. Any and all damage, breakage or loss claims are to be made directly to the shipping company.

  • Page 5: Location & Mounting

    Local and National Codes should be consulted prior to final location and installation of the humidifier. NORTEC can not accept responsibility for installation code violations. 1. Location of the humidifier should be below and as close as possible to the steam distributor location as possible.

  • Page 6: Steam Distributors

    1. Humidifier is intended to operate on potable (cold) Wall tap water. 2. If the raw water is very hard, NORTEC can provide longer cylinder life on softened water. However, softened water is more conductive and more corrosive. Some hardware and/or software changes may be required, at time of order or in the field.

  • Page 7: Steam Line And Condensate Return Line

    4. To increase allowable water column (allowable positive static pressure) an accessory Fill Cup Extension Kit is available from NORTEC. See Figure #8. Figure #8 Fill Cup Extension Kit to Overcome Static Pressure...

  • Page 8: Low Voltage Control Wiring

    Used as a safety to prevent saturation when no air flow. 1. NORTEC offers various versions of A, B and C to suit each application. In general, A is essential, whereas B and C are highly recommended in ducted applications.

  • Page 9: Primary (Line) Voltage Wiring To Unit

    Primary Voltage Supply Wiring VOLTAGE PRIMARY (LINE) VOLTAGE WIRING TO UNIT (ACTUAL) NOTE: VoltageAt Terminal Block Must Be InAccordance With Spec. Label. All Wiring To Be InAccordance With Existing NationalAnd Local Electrical Codes. Figure #10 (BY OTHERS) Ground Wire Ground - Single Phase Unit.

  • Page 10: Optional Modulation (Continuous Control) Packages By Nortec

    0-3 vdc, 0-10 vdc, 0-16 vdc, 0-20 vdc, 1-5 vdc or 2-10 vdc. Wire according to NORTEC supplied external wiring diagram that comes with each modulation option. To share the signal with more than one humidifier, wire in parallel to each humidifier.

  • Page 11: Nhmc Operation

    The start-up self-test sequence will be displayed as follows: CONDAIRMATIC MC NORTEC V2... CONDAIRMATIC MC SYSTEM TEST LAMP GREEN LAMP YELLOW...

  • Page 12: User Level

    After three days of no call from either the on/off controls or the modulating controls, the drain valve is automatically activated long enough to drain all water from the steam cylinder. This NORTEC exclusive feature will prolong the life of the cylinder. SYSTEM MESSAGES...

  • Page 13: Manual Capacity Adjustment

    MANUAL CAPACITY ADJUSTMENT The NHB humidifier is rated in lbs/hr of steam output capacity. Set to 100%, it will operate at full output until the humidistat has sensed that the humidity has reached setpoint. Then it will stop the humidifier by breaking control circuit 8-10.
  • Page 14 Failure to replace the cylinder at the end of cylinder life may result in unit damage. NORTEC is not responsible for any damages resulting from, or attributable to, the failure to replace a used cylinder (see Manufacturer’s Warranty).
  • Page 15 *NOTE: - Remote indication 61-20 “yellow” means humidifier has shutdown and one of several system messages is showing. The exception is on the NHP when No Current or Output Too Low is the fault, 61-20 “yellow” will be off, but the yellow light on the NHP will be on.

  • Page 16: How To Remove The Steam Cylinder

    1. Remove used cylinder as previously described. NORTEC does not recommend the use of any acid solutions to clean the used cylinder. Always replace a used cylinder.

  • Page 17: How To Install The Replacement Cylinder

    OFF position and “open” the main external fused disconnect to stop power to the humidifier. Close the shut off valve in the water supply line feeding the humidifier. Lock the cabinet door(s) to prevent unauthorized tampering. All doors are factory supplied with keyed locks.

  • Page 18: Built On And Remote Mounted Blower Packs (Bobp's / Rmbp's)

    This information is readily available from your local representative. 3. When contacting your local representative or NORTEC, for troubleshooting assistance, please ensure the serial number has been obtained for reference purposes. 4. Whenever the troubleshooting steps indicate a...
  • Page 19 Clean the drain valve; start with a fresh cylinder. Then measure the manual drain time with and without the external drain connected. Is the external drain impeding flow? NORTEC recommends an open external drain line. See Form #XX-161. NHMC/NHP The self-diagnostic system built into the NHMC is...
  • Page 20 Response: See Figure #2, NHMC/NHP System Messages 4. Max. Filling Time - Error 3 Symptom(s) Diagnosed: Time dependent. Neither Maximal Level (full cylinder) is detected, nor is there enough current drawn to meet capacity demand. Current monitored on primary lead to cylinder is greater than zero and not decreasing.
  • Page 21 2. A problem with the main PCB. Corrective Action: 1. Reset humidifier and monitor display. If Error 7 reoccurs within one minute of resetting the unit, the problem is with the main PCB. If Error 7 is not repeated, the primary power to the unit is suspect.
  • Page 22 10. Cyl. Lifespan End - Error 9 Symptom(s) Diagnosed: The criteria for diagnosing Cylinder Spent - Error 4 has expired and cylinder has not been replaced. Humidifier has shut down to avoid unsafe operation. Probable Cause(s): Refer to Error 4.
  • Page 23 It is unavoidable and the cylinder is intended to be disposable. Unit Takes Self-Corrective Action: The humidifier continues to operate with gradually decreasing capacity, giving the user notice by responding as shown below.

  • Page 24: Using The Wiring Diagram

    (and most of the external) wiring details. Additional external wiring details can also be found with any electrical accessories purchased from NORTEC. The following is a detailed explanation of how the NH humidifier (with and without options) operates.

  • Page 25: Terms Used

    RATED AMPS: Refers to amps listed on the humidifier specification label. SHORT CYCLING: When the ‘on time’ of the humidifier is less than ten minutes upon a call for humidity. To correct short cycling, all humidifiers have a capacity adjustment which allows the output of the humidifier to be reduced as low as 20% of rated output, thus extending the ‘on time’...

  • Page 26: Wiring Diagram

    Si 2 NHB MAIN BOARD Si 1= 3.15A FUSE Si 2= 3.15A FUSE Sx % = MANUAL CAPACITY ADJUST NHB HUMIDIFIER w OR w/o OPTIONAL BLOWER PACK (BUILT-ON OR REMOTE) WIRING DIAGRAM NO. 92-0-A REV. 9 - 23 - RESETABLE THERMODISC ( N.C.
  • Page 27 PIGGY BACK BOARD Si 1= 3.15A FUSE Si 2= 3.15A FUSE LCD DISPLAY OPTIONAL LCD/KEYPAD DISPLAY RS 232 NHMC HUMIDIFIER w OR w/o OPTIONAL BLOWER PACK (BUILT-ON OR REMOTE) WIRING DIAGRAM NO. 94-0-A REV. 10 - 24 - RESETABLE THERMODISC ( N.C.
  • Page 28 Si 2= 3.15A FUSE Sx % = MANUAL CAP . ADJUST ts = DRAIN FACTOR ADJUST OPTIONAL CAPACITY OUTPUT INDICATOR NHP HUMIDIFIER w OR w/o OPTIONAL BLOWER PACK (BUILT-ON OR REMOTE) WIRING DIAGRAM NO. 95-0-A REV. 8 - 25 - RESETABLE THERMODISC ( N.C.

  • Page 29: Pre Start-Up Checklist

    Humidifier Mandatory Pre Start-up Checklist (p. 1 of 1) Unit Serial #: _ _ _ _ _ _ _ _ Unit type: Customer/Job:_______________ Inspected by: ________________ Date of inspection:____/____/____ _____________________________________________________________________________________________ WATER QUALITY: City water r Well water Conductivity: _______mhmos HUMIDIFIER MOUNTING:...

  • Page 30: Start-Up Procedure

    Humidifier Mandatory Start-up Checklist & Quick Reference (p. 1 of 1) Unit Serial #: _ _ _ _ _ _ _ _ Unit type: Customer/Job:_______________ Start-up by: _____________ ______________________________________________________________________________________________ 1. PRELIMINARY: - Pre-start-up checklist completed? yes If no, return to Pre-Start-up Checklist before going on with start-up procedure.

  • Page 31: Cylinder Replacement Procedure

    WARNING: To prevent the possibility of electrical shock the green ground wire must be reinstalled before power is restored. Push the two slip-on terminals back onto the two tabs on the coil. The terminals, although not identical, are reversible.ox. 10 seconds). NH Electric Steam Humidifier # of humidifiers: _____ Tag:_____________ Voltage: _____V/___ph Steam output: ____lbs./hr...

  • Page 32: Maintenance Checklist

    OFF position and “open” the main external fused disconnect to stop power to the humidifier. 3.Close the shut off valve in the water supply line feeding the humidifier. Lock the cabinet door(s) to prevent unauthorized tampering. All doors are factory supplied with keyed locks.

  • Page 33: Replacement Parts

    /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /110-120/1 VOLTS/PH...
  • Page 34 - 31 -...
  • Page 35 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /110-120/1 VOLTS/PH...
  • Page 36 - 33 -...
  • Page 37 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /110-120/1 VOLTS/PH...
  • Page 38 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/3 /440-480/3 /220-240/3 /208/3 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /550-600/1 /440-480/1 /347/1 /277/1 /220-240/1 /208/1 /110-120/1 VOLTS/PH...

  • Page 39: Limited Warranty

    Any further warranty must be in writing, signed by an officer of THE COMPANY. THE COMPANY’s limited warranty on accessories, not of NORTEC’s manufacture, such as controls, humidistats, pumps, etc. is limited to the warranty of the original equipment manufacturer from date of original shipment of humidifier.
  • Page 40 Model # :_________________________ Serial # :_________________________ Cylinder # :_______________________ _________________________ _________________________ _________________________ NORTEC INDUSTRIES INC. P.O. Box 698 826 Proctor Avenue Ogdensburg, NY 13669 Cylinder Last Replaced: MTH/DAY/YR MTH/DAY/YR MTH/DAY/YR NORTEC AIR CONDITIONING Ottawa, ON K1T 3T7 A WMH COMPANY INDUSTRIES LTD*.

This manual is also suitable for:

Nh-005Nh-030Nh-050Nh-100Nh-150Nh-200

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