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NHMC HUMIDIFIER

w OR w/o OPTIONAL BLOWER PACK

(BUILT-ON OR REMOTE)

WIRING DIAGRAM NO. 94-0-A REV. 10

6 8 10

14 12 16

18 20

32 30 28 26

4 22 24

LCD DISPLAY

RS 232

44 46 48 42

38 34 36 40

STATUS

INDICATOR

LED's

_ _

32 30 28 26

OPTIONAL REMOTE

YELLOW, GREEN

AND RED

INDICATORS

SEE EX. W.D.

Si 1

Si 2

Si 1= 3.15A FUSE

Si 2= 3.15A FUSE

8 10

JUMPER OR

ON/OFF

CONTROLS

IN SERIES

RED WIRE

OPTIONAL

MODULATION

TRANSFORMER

3 PHASE

CONNECTION

24 V

COIL

24 V

COIL

3 A

FUSE

FILL

VALVE

DRAIN

VALVE

24 V

COIL

24 V

COIL

OFF
DRAIN

1/1

2/1

1/3

2/3

1/2

2/2

OPTIONAL LCD/KEYPAD DISPLAY

NHMC MAIN BOARD

c/w PIGGY BACK BOARD

OPTIONAL

INTERNAL

FUSE BLOCK

(NHMC 050

OR LARGER)

MAIN SWITCH

DOOR

INTERLOCK

SWITCH

EXTERNAL

INTERNAL

TRANSFORMER

( IF REQUIRED )

3 A

FUSE

24 V

COIL

FAN

RELAY

THERMODISC ( N.O. )

RESETABLE

THERMODISC ( N.C. )

HIGH

LOW

TWO SPEED SWITCH

DEDICATED

DISCONNECT

BY OTHERS

BLOWER

PACK

TERMINAL

BLOCKS

STEP DOWN

TRANSFORMER

GROUND

CLAMP

PRI. TERMINAL

BLOCK OR

OPTIONAL FUSE

BLOCK ( NHMC

030 OR SMALLER)

OPTIONAL BLOWER PACK ( BUILT-ON OR REMOTE )

OPTIONAL BLOWER PACK

MOUNTED ON/OFF HUMIDISTAT

or JUMPER

INTERNAL
EXTERNAL

CONTACTOR(S)

HIGH

WATER

SENSOR

500 OHM

2 WATT

RESISTOR

FAN

24 V

Y G

Содержание 132-3091

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

Страница 2: ...ER 4 LOW VOLTAGE CONTROL WIRING 5 On Off Controls 5 CONTROL INSTALLATION 5 OPTIONAL MODULATION CONTINUOUS CONTROLS 5 OPTIONAL MODULATION CONTINUOUS CONTROL PACKAGES BY NORTEC 7 OPERATION 7 INTRODUCTION 7 LAYOUT AND FUNCTION 7 NHMC OPERATION 8 START UP SELF TEST 8 USER LEVEL 9 INFORMING THE USER 9 SELF HELP 9 SYSTEM MESSAGES 9 REMOTE INDICATION 9 DOUBLE UNIT OPERATION 9 NHB NHP OPERATION 9 END OF C...

Страница 3: ...VE 13 HOW TO INSTALL THE REPLACEMENT CYLINDER 14 BUILT ON AND REMOTE MOUNTED BLOWER PACKS BOBP S RMBP S 15 TROUBLESHOOTING 15 STARTING POINT 15 USING THE WIRING DIAGRAM 21 TERMS USED 22 WIRING DIAGRAM 23 25 PRE START UP CHECKLIST 26 START UP CHECKLIST AND QUICK REFERENCE 27 MAINTENANCE CHECKLIST 28 29 REPLACEMENT PARTS 30 35 ...

Страница 4: ...s removable from any partially or fully opened position Each electrical compartment has a screw mounted right side cover which can also be removed for ease of electrical connection For safety the door when closed keeps the side cover from being removed Single units have a plumbing compartment attached to the left side of the electrical Double units have a second plumbing compartment Each plumbing ...

Страница 5: ...dition install a minimum of 2 field supplied fasteners in the holes provided in the back of the unit to prevent the unit from being bumped off the wall bracket See Figure 3 6 Make sure humidifier is level 7 DO NOT mount humidifier on hot surfaces 8 If humidifiers are mounted on roof a thermostatically ventilated weatherproof cabinet by others should be used Consult factory 9 DO NOT mount humidifie...

Страница 6: ...d water is more conductive and more corrosive Some hardware and or software changes may be required at time of order or in the field Consult factory 3 If RO or DI is available blending may increase cylinder life Consult factory 4 DO NOT use a hot water supply to humidifier Minerals will adhere more easily to surfaces and the fill valve s small flow regulating orifice and could become plugged 5 Sta...

Страница 7: ...y 4 To increase allowable water column allowable positive static pressure an accessory Fill Cup Extension Kit is available from NORTEC See Figure 8 5 Water column requirements are even higher duct static pressure when distributor s steam outlets are faced with downflow duct applications ELECTRICAL PRIMARY VOLTAGE SUPPLY WIRING TO HUMIDIFIER 1 Check and ensure that available voltage and phase corre...

Страница 8: ...pply grille Do not mount on a outside wall where temperature fluctuation can affect control response 2 Mount duct humidistat in location representative of overall air humidity usually return duct Do not mount it directly in front of steam distributor or in turbulent or mixing zone Mount it where air s humidity and temperature are uniform and representative of spaces being humidified 3 Mount duct h...

Страница 9: ...Supply Required Voltage Between L1 And Neutral Load Will Be Unbalanced L3 Neutral NOTE VoltageAtTerminalBlockMustBeInAccordanceWithSpec Label AllWiringToBeInAccordanceWithExistingNationalAndLocalElectricalCodes L1 L2 Ground Ground Wire Ground Leg 3 Pole Terminal Block 3 Phase Unit 3 Phase Supply Required Voltage Between Any Two Legs Load Will Be Balanced L3 Neutral PRIMARY LINE VOLTAGE WIRING TO U...

Страница 10: ...odulation package 3 Optional modulation packages without modulating safety high limit can use on off safety high limit Refer to on off controls section 4 All versions can use on off safety air proving switch Refer to on off controls section OPERATION INTRODUCTION The NORTEC NH Series humidifier is a completely new design based on up to date technology The NHB is designed to provide clean steam hum...

Страница 11: ...ence will be displayed as follows LCD EXPLANATION COMMENTS WHAT YOU READ CONDAIRMATIC MC Note the V number It tells you the EPROM version NORTEC V2 CONDAIRMATIC MC Note the model type Ensure NHMC model type compatibility with spec label name plate Can be reconfigured if necessary SYSTEM TEST Test begins LAMP GREEN Observe green signal light on LAMP YELLOW Observe yellow signal light on CONTACT REL...

Страница 12: ...C is always internally wired to provide 24 VAC to the terminal strip for optional external remote indication Up to 100 milliamps is available at each of three terminal pairs 61 20 62 40 63 36 for activating yellow green and red lamps ordered as options from NORTEC or for powering field supplied resistive loads such as lamps DOUBLE UNIT OPERATION Turn both switches on During start up self test both...

Страница 13: ... DOUBLE UNIT OPERATION Turn both switches on If there is a demand for humidity the green status lamp will indicate that the circuit is operating On the NHP the optional output indication meter will steadily increase until the meter reads maximum output Maximum output depends on the manual capacity setting of the unit and or the continuous control demand The NHB NHP has built in diagnostic capabili...

Страница 14: ...hes it from MAXIMAL LEVEL and CYLINDER SPENT 8 Each of these three 3 messages has a unique combination of responses at the terminal strip for remote indication These unique combinations distinguish them from each other and from any other system message 9 At MAXIMAL LEVEL remote yellow green red are OFF ON OFF Note that MAXIMAL LEVEL will also appear at unit start up 10 At CYLINDER SPENT remote yel...

Страница 15: ...MPS REMOTE INDICATION 24 VAC TO SYSTEM FAULTS UNIT CONTACTOR YELLOW GREEN YELLOW 61 20 Maximal Level See NHMC Chart above for details Excess Current OFF ON OFF ON No Current OFF ON OFF OFF Max Filling Time OFF ON OFF ON Cylinder Spent ON FLASHING ON OFF No Current OFF ON OFF OFF Output Too Low OFF ON OFF OFF Electronic N A N A N A N A Phase Interrupt N A N A N A N A Cyl Lifespan End OFF FLASHING O...

Страница 16: ...utes 4 When completely drained push the main ON OFF DRAIN switch back to the OFF position 5 Once drained open the main electrical disconnect during the entire cylinder change operation 6 Open plumbing door 7 Cylinder plugs are attached to the primary voltage cylinder wires The plugs remain attached to the wires unless they have to be replaced due to damage The plugs are press fitted over the elect...

Страница 17: ...d by the dot formation on the top of the cylinder 7 The white cylinder plug on all units is for the sensor electrode which always goes on the single pin surrounded by a plastic shoulder 8 Ensure that cylinder plugs fit snugly on the pins 9 If cylinder plugs become loose it is best to obtain a new replacement plug Consult factory EXTENDED SHUTDOWN Before disconnecting power to the humidifier for a ...

Страница 18: ...quickly can cause over amping and automatic shutdown or blown fuses Filling too slowly can cause insufficient steam output and humidity levels Water supply pressure should be between 30 and 80 psig ideally 55 to 60 psig Draining too slowly can cause over concentration and malfunction due to foaming These are just some examples of what can go wrong if the fill and drain rates are not maintained Fil...

Страница 19: ... Current Error 1 Symptom s Diagnosed Current drawn on monitored primary lead to cylinder has reached or exceeded 125 of its rated amps The unit will have tried to self correct prior to system shutdown by draining water from the cylinder or de energizing the contactor momentarily while it drains Probable Cause s 1 Cylinder water is over concentrated too conductive due to restricted drain short cycl...

Страница 20: ...in PCB for five seconds If Maximal Level is not displayed and the fill valve does not energize green LED must be illuminated the main PCB is defective If Maximal level is displayed a problem exists with the cylinder or the high water sensor PCB A voltage of 85 VAC or greater across the orange wires of the high water PCB one orange wire terminates at the white sensor plug attached to the soldered p...

Страница 21: ...ve preventing it from holding water in the cylinder and check water inlet for obstructions 4 Turn unit back on and see if it will fill a If unit still does not fill then with the unit turned on check for 24 VAC across the fill valve there must be a call for humidity b If 24 VAC is present then the problem is with the fill valve c If 24 VAC is not present then check for 24 VAC across 6 and 14 on th...

Страница 22: ...e troubleshooting guidelines as previously described NHB The NHB checks the status of the electrical circuits to the fill valve drain valve primary voltage contactor high water sensor and steam cylinder The manual capacity setting if reduced is taken into consideration When problem symptoms are found the NHB will if necessary respond by shutting itself down The NHB communicates its findings to the...

Страница 23: ...m cylinder as spent as previously described Probable Cause s As pure steam is produced from tap water most minerals are drained by the auto adaptive control system However it is inevitable that minerals will buildup on the electrodes and strainer inside the steam cylinder It is unavoidable and the cylinder is intended to be disposable Unit Takes Self Corrective Action The humidifier continues to o...

Страница 24: ...s The primary voltage circuit is what turns the water in the cylinder to steam for humidification The internal primary fuses if present are followed by the primary contactor s When the 24 Vac coil is powered the contactor makes One primary leg is routed through the core of the linear Hall Effect current sensing circuit on the electronics then it goes to the cylinder The high water sensor board has...

Страница 25: ...ready in the water reach an excess concentration as result of boiling away pure water and the continued boiling action agitating the contained water The humidifier electronics are designed to prevent this occurrence although in extreme cases water will foam with little concentration making it necessary to have the drain time of the water contained in the cylinder increased Foaming is normally caus...

Страница 26: ...AIN VALVE 24 V COIL 24 V COIL 0N OFF DRAIN 1 1 1 3 2 3 1 2 2 2 2 1 NHB MAIN BOARD OPTIONAL INTERNAL FUSE BLOCK NHB 050 OR LARGER MAIN SWITCH DOOR INTERLOCK SWITCH EXTERNAL EXTERNAL INTERNAL INTERNAL TRANSFORMER IF REQUIRED 3 A FUSE 24 V COIL FAN RELAY THERMODISC N O RESETABLE THERMODISC N C T HIGH LOW TWO SPEED SWITCH DEDICATED DISCONNECT BY OTHERS BLOWER PACK TERMINAL BLOCKS STEP DOWN TRANSFORMER...

Страница 27: ...L1 L2 L3 3 A FUSE FILL VALVE DRAIN VALVE 24 V COIL 24 V COIL 0N OFF DRAIN 1 1 2 1 1 3 2 3 1 2 2 2 OPTIONAL LCD KEYPAD DISPLAY NHMC MAIN BOARD c w PIGGY BACK BOARD OPTIONAL INTERNAL FUSE BLOCK NHMC 050 OR LARGER MAIN SWITCH DOOR INTERLOCK SWITCH EXTERNAL EXTERNAL INTERNAL INTERNAL TRANSFORMER IF REQUIRED 3 A FUSE 24 V COIL FAN RELAY THERMODISC N O RESETABLE THERMODISC N C T HIGH LOW TWO SPEED SWITC...

Страница 28: ... G L1 L2 L3 3 A FUSE FILL VALVE DRAIN VALVE 24 V COIL 24 V COIL 0N OFF DRAIN 1 1 1 3 2 3 1 2 2 2 2 1 OPTIONAL CAPACITY OUTPUT INDICATOR NHP MAIN BOARD c w PIGGY BACK BOARD OPTIONAL INTERNAL FUSE BLOCK NHP 050 OR LARGER MAIN SWITCH DOOR INTERLOCK SWITCH EXTERNAL EXTERNAL INTERNAL INTERNAL TRANSFORMER IF REQUIRED 3 A FUSE 24 V COIL FAN RELAY THERMODISC N O RESETABLE THERMODISC N C T HIGH LOW TWO SPE...

Страница 29: ... Slope up 2 per 12 r Slopped back to drain r Slope down per 12 r Trapped 2 more than static duct pressure r Traps r Size _______ Insulated r Stainless steel r or plastic r Length Size _____ _______ ________ Vertical _______ Horizontal 90 deg elbowsr qty ____ 45 deg Elbowsr qty ____ Can condensate be trapped anywhere in the steam line Yes r no r WATER LINES at max 4ft from the unit r 3 8 connection...

Страница 30: ...4 85 must be made cabinet mounted humidistat if present must be calling door interlock switch must be made interlock switch can be pulled out to operate unit The unit will undergo a self test P and MC models only to ensure integrity of all the components Lamp green observe light energize Lamp yellow observe light energize Contact relay 1 24V to 61 20 for rem yellow Drain sound and 24 volt at solen...

Страница 31: ... and pull steam hose off the cylinder vertically 7 Using a small slotted screwdriver depress tab on the re usable tie wrap if present around the middle of the cylinder This will loosen the tie wrap to come apart for re use later on 8 The cylinder is now ready to be lifted out of the unit CAUTION Cylinder and any un drained water might still be HOT 9 Always clean the drain valve before installing a...

Страница 32: ...r sensor electrode which always goes on the single pin surrounded by a plastic shoulder 8 Ensure that cylinder plugs fit snugly on the pins 9 If cylinder plugs become loose it is best to obtain a new replacement plug Consult factory EXTENDED SHUTDOWN 1 Before disconnecting power to the humidifier for a period of extended shutdown ALWAYS DRAIN the cylinder first 2 Do NOT leave the switch in the DRA...

Страница 33: ... 30A 132 3013 1 1 1 1 1 1 2 2 1 1 1 2 2 4 3P 40 A 132 3014 1 1 1 1 1 2 2 1 1 4 4 2 2 3P 63A 132 3015 2 2 4 4 5 HIGH WATER SENSOR 147 4998 1 PC BOARD ASSLY 147 4994 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 6 PRIMARY TO 24 V 110 120V 142 3110 1 TRANSFORMER 75 VA 208V 132 3208 1 1 1 1 1 1 1 2 2 220 240V 132 3230 1 1 1 1 1 1 1 2 2 277V 132 3277 1 1 347V 132 3347 ...

Страница 34: ... 31 ...

Страница 35: ... 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 16 4 PT L V CONTROL STRIP NHB 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 5 PT L V CONTROL STRIP NHB 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 5 PT L V CONTROL STRIP NHP NHMC 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 12 PT L V CONTROL STRIP NHP NH...

Страница 36: ... 33 ...

Страница 37: ... 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 SPECIFIY LENGTH 58 FILL CUP 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 59 FILL CUP COVER 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 60 FILL CUP SPLASH DIVERTER 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 61 FILL CUP OUTLET GROMMET 1 1 1 1 1 1 1 1 1 1 1 ...

Страница 38: ...1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 SWITCH 71 SENSOR PLUG WHITE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 72 10AWG SPRING LOADED BLACK 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 2 2 1 1 2 1 4 4 2 2 4 2 CYLINDER PLUG RED 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 2 2 1 1 2 1 4 4 2 2 4 2 YELLOW 1 1 1 1 1 1 ...

Страница 39: ...all other warranties expressed or implied by law No liability whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then said liability shall be limited to the original purchase price for the product 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 c...

Страница 40: ...er Last Replaced _________________________ MTH DAY YR _________________________ MTH DAY YR _________________________ MTH DAY YR NORTEC INDUSTRIES INC P O Box 698 826 Proctor Avenue Ogdensburg NY 13669 NORTEC AIR CONDITIONING INDUSTRIES LTD 2740 Fenton Road Ottawa ON K1T 3T7 A WMH COMPANY PRINTED IN CANADA ...

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