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Installation |

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Figure 19: Modulating Control Wiring

Figure 20: Duct Sensor Wiring

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Содержание RH

Страница 1: ...n Manual Includes installation operation maintenance and troubleshooting information for your RH Electric Steam humidifier 2548006 A 8 OCT 2009 Important Read and save these instructions This guide to be left with equipment owner ...

Страница 2: ...xcept to the extent required for installation or maintenance of recipient s equipment All references to the Nortec name should be taken as referring to WALTER MEIER LTD Liability Notice Nortec does not accept any liability for installations of humidity equipment installed by unqualified personnel or the use of parts components equipment that are not authorized or approved by Nortec Copyright Notic...

Страница 3: ...and Accessories 21 Start Up 22 Installation Check 23 RH User Interface 24 Start Up Procedure 26 Start Up Checklists 29 Operation 30 LED Status Lights 30 Selecting an RH Setpoint 31 Humidifier Components 34 How the Humidifier Works 36 Humidifier Configuration 38 Maintenance and Servicing 39 Required Maintenance 43 Extended Shutdown 44 Maintenance Checklist 45 Troubleshooting 47 General Troubleshoot...

Страница 4: ... according to local electrical code Electrical connection to be performed by a licensed electrician CAUTION Plumbing Plumbing to be performed by a licensed plumber Drain water from humidifier can be very hot Do not drain to public sink All plumbing work should be done according to local plumbing code CAUTION Installation Do not mount on hot surfaces Do not mount in area where freezing can occur Do...

Страница 5: ... Report any discrepancy immediately to the site engineer 4 Ensure sufficient clearances will be available as described in the Location section on page 7 5 Ensure steam lines can be routed to distributor or blower pack as described in Steam Lines and Condensate Returns on page 10 Figure 1 Specification Label Location RH Models The RH is the most advanced residential steam humidifier available and p...

Страница 6: ...le and may have been delivered with your RH humidifier Refer to the installation instructions that came with the accessories for their proper installation and operation Table 2 Options and Accessories Option Accessory Used For Steam Distributors Adding steam into air ducts Remote Blower Pack Adding steam into a space remote from the humidifier Digital or Modulating Control Humidistats Controlling ...

Страница 7: ...Introduction 4 ...

Страница 8: ... with Keyholes 9 Plumbing 10 Steam Lines and Condensate Returns 14 Electrical 15 External Controls 15 Control Location 15 Control Wiring 16 On Off Control Wiring 17 Modulating Control Wiring 19 Optional Outdoor Temperature Reset 20 Options and Accessories 20 Remote Blower Pack ...

Страница 9: ...Installation 6 Typical RH Installation Figure 3 Typical Humidifier Installation ...

Страница 10: ...cate the humidifier any further then absolutely necessary from the steam distributor location as net output will be reduced as a result of heat loss through the steam line When possible mount the RH humidifier at a height convenient for servicing Figure 4 Mounting Location Clearance Note Do not mount on hot surfaces where freezing can occur vibrating surface or floor Side clearance for space model...

Страница 11: ...hat 1 4 in 6 mm is exposed Raise the unit and place the screw head through the keyhole 4 Make sure the unit is level and then insert and tighten the second screw through the bottom hole Tighten the top screw See Figure 5 Mounting With Keyholes Figure 5 Mounting With Keyholes Note Use screws longer than 2 5 cm if drywall or other spacer is present Install Second Screw after hanging humidifier 8 x 2...

Страница 12: ...tec s Part Number 1429527 Note Drain water is very hot do not drain to public sink Do not use plastic pipe for drain For humidifiers installed in some cities including the City of Los Angeles A city approved spring loaded double ball CHECK VALVE must be installed by contractor on the potable water inlet to the humidifier Recommended valve manufacturer Watts Regulator phone number 508 688 1811 Size...

Страница 13: ...m Output lb hr Distance ft Possible Loss lb hr Steam Line Size in 5 8 1 0 3 4 10 15 1 5 3 4 NOTE 1 Use one inch copper steam line for longer runs 2 The use of steam line other then copper stainless steel tube or Nortec supplied steam line will void the warranty and may adversely effect the operation of the humidifier Steam Direction Steam Direction Steam Direction 2 in 5 cm 1 ft 30 cm 1ft 30 cm 0 ...

Страница 14: ...e Figure 9 ASD10 Distributor Installation 12 in 30 cm min 4 ft 1 2 m min to any obstruction Mount ASD distributor to side of duct 2 x duct height min 2 3 Duct Height 12 in 30 cm min 3 4 in 19 mm max wall thickness Mount inside if duct wall is 3 4 in 19 mm 4 ft 1 2 m min to any obstruction Mount distributor to side or bottom of duct 2 x duct height min ...

Страница 15: ...30 cm min Before any bend Min 12 in 30 cm radius Hose will soften over time proper support Is necessary Support Brackets 1 ft 30 cm min To Drain 1 ft 30 cm min before any bend 12 in 30 cm min Radius Condensate Trap Condensate line Connect Steam Hose to Cylinder Connect Condensate Hose to Fill Cup 2 in 5 cm min 1 ft 30 cm Support Brackets ...

Страница 16: ...ap at vertical transition Condensate trap not 12 in 30 cm below distributor 1ft 30 cm min before any bend 12 in 30 cm min radius Obstruction Use full size condensate tee at low point Slope lines up to T and immediately after it Hose will soften over time proper support Is necessary Support brackets 1 ft 30 cm min To drain To drain 2 in 5 cm min 1 ft 30 cm ...

Страница 17: ...Installation 14 Electrical Figure 14 Primary Power Connection Caution Wiring to be performed by a licensed Electrician ...

Страница 18: ...of it 2 Duct High Limit Can be modulating or On Off humidistat Locate at least 10 feet from steam distributor or far enough that under normal conditions steam is fully absorbed 3 Humidity Control Can be Modulating or On Off humidistat Can be located either in return air duct preferred or in room being humidified Avoid placing near discharge diffuser of humidified air Mount in area representative o...

Страница 19: ...Installation 16 On Off Control Wiring Figure 16 On Off Controls Figure 17 Digital On Off Humidistat ...

Страница 20: ...17 Installation Modulating Control Wiring Figure 18 Modulating Controls ...

Страница 21: ...Installation 18 Figure 19 Modulating Control Wiring Figure 20 Duct Sensor Wiring ...

Страница 22: ...erminals 8 and 1 on the humidistat and wiring the outdoor temperature sensor to these terminals When the outdoor temperature setback feature is in effect the humidistat will normally display the calculated setpoint limit based on the outdoor air temperature A snowflake will also be displayed to indicate cold weather operation When any key on the controller is pressed the LCD screen will display th...

Страница 23: ...ote blower pack refer to the installation instructions supplied with it The steam line instructions in this manual are also applicable to remote mounted blower packs except the slope must be larger because the blower pack does not have a separate condensate line and the maximum allowable steam line length is 4 ft 1 2 m Figure 23 Remote Mounted Blower Pack Note The blower pack requires additional c...

Страница 24: ...t Up Start Up 22 Installation Check 23 RH User Interface 23 On Off or Modulating Operation 24 Start Up Procedure 25 Nortec Digital Controls 25 Modulating Control 25 On Off Control 26 RH Pre Start Up Checklist ...

Страница 25: ...ries between terminal 1 and 2 10 ft 3 m min Humidity Control Wired to Term 4 n series between term 1 and 2 location which represents humidified space no drafts not by door not by diffuser I Modulating On Off in return duct or Air Gap Not Plastic Drain Not to sink High Limit On Off In series between terminal1and 2 Modulating Wired to termina 4 Mounting Unit Level Screws into structural member Spec ...

Страница 26: ...ration From the factory the RH is configured to operate as an On Off humidifier It will run when 24 VAC from terminal 1 is fed back into terminal 2 through an On Off humidistat and other security devices in series See On Off or Modulating Control J10 on page 37 for instructions on configuring the RH to operate as a modulating humidifier Caution Do not leave the On Off Drain switch in the drain pos...

Страница 27: ...tat 7 When the external humidistat generates a demand for humidity and the security loop is closed the green humidifying LED on the front of the humidifier will light up the power relay on the control board will engage the fill valve will activate after a delay and the cylinder will slowly fill with water Note While the cylinder is filling with water there should be no water flowing down the drain...

Страница 28: ...ntrol algorithm to open and close a relay that opens and closes the humidifier s On Off loop Adjust the setpoint to the desired setting by using the up down arrow buttons on the controller Note It is possible to field calibrate Nortec digital controls if the displayed humidity is found to be different than a known trusted source See chapter on Troubleshooting starting on page 45 Output signal is s...

Страница 29: ...strictions F Type of Insulation CONDENSATE LINE S P Trap min 6 in or duct press 2in F P Trap min 12 in drop F WATER LINE 1 2 in to within 4ft of unit F Water pressure 30 80 psig F DRAIN LINE Air gap within 3 ft of the unit F Diameter Size F CYLINDER Seated in drain valve and secured yes F no F WIRING Wiring connections and connectors secured yes F no F CONTROLS On Off Security loop devices working...

Страница 30: ... on yes F no F On Off security loop Terminal 1 and 2 closed yes F no F Fan security Terminal 8 and 9 closed yes F no F CONTROLS Installed controls match configuration yes F no F Control Setpoint High Limit Setpoint 3 VDC on terminal 4 Modulating Humidistat yes F no F or Terminal 1 and 2 closed On Off Humidistat yes F no F The Humidifier will undergo a self test when the power is turned on activati...

Страница 31: ...Start Up 28 ...

Страница 32: ...0 Selecting an RH Setpoint 31 Humidifier Components 32 Description of Components 33 Humidifier Schematic 34 How the Humidifier Works 34 Steam Generation 34 Drains 34 Steam Distribution 35 Steam Line 35 Condensate Return 36 Humidifier Configuration ...

Страница 33: ...he Nortec Digital controls be used under these conditions to prevent damage from condensation The digital control with an outdoor temperature sensor installed will automatically setback the humidity setpoint to correspond with outdoor temperature Duct High Limit The duct high limit is intended to prevent saturation and wetting in duct work at high load conditions Nortec recommends a setting of 85 ...

Страница 34: ...fier Components Steam Outlet Condensate Return Fill Cup Drain Valve Drain Canal Fill Valve Cylinder Cylinder Plug High Water Sensor Plug On Off Drain Switch Control Board Power Relay High Voltage Terminal Block Transformer Control Terminal Strip Blowerpack ...

Страница 35: ...rom humidifier Control Board Controls all functions of the humidifier s operation and provides input and output connections to humidifier components Fill Cup Provides an air gap for backflow prevention Fill Valve Controls flow of water into humidifier High Voltage Terminal Block Primary power connection from remote disconnect to humidifier High Water sensor Plug Used to detect max water level in c...

Страница 36: ...33 Operation Humidifier Schematic Figure 28 Humidifier Schematic ...

Страница 37: ...he current and output The unit continues to fill until the current matches demand or the high water sensor detects a high water level The RH repeats the fill and boil down cycle repeatedly to match output to demand Over time minerals in the water will adhere to the cylinder s electrodes The humidifier will automatically fill to a higher water level to maintain full capacity during the life of the ...

Страница 38: ...ion on selecting steam lines Condensate Return Whenever steam is distributed condensate is formed in the distribution system and steam distributor manifold or blower pack Insulating steam lines is one important way to reduce the amount of condensate formed Steam lines are sloped so that condensate does not collect in the lines and create a restriction to steam flow The condensate must be collected...

Страница 39: ...r Note Nortec recommends not making any configuration changes unless they are required and that any changes to the RH s settings be performed by a qualified technician Figure 30 RH Control Board Jumpers Capacity Adjustment The Capacity adjustment potentiometer can be accessed through the clearance hole in the cover of the electrical compartment It can adjust the capacity of the humidifier between ...

Страница 40: ...h jumper 13 Factory setting Jumper Removed 0 10 VDC or 0 20 mA control signal J13 Removed Controller is configured for a 0 10 VDC or 0 20 mA control signal J13 Installed Controller is configured for a 2 10 VDC or 4 20 mA control signal Note For mA control a 500Ω register is required between terminals 3 and 4 on the low voltage control terminal Table 6 Control Jumper Configuration Resulting Control...

Страница 41: ...Servicing 39 Required Maintenance 39 Cylinder Spent Fault 39 Replacement Cylinder 40 Removing the Cylinder 41 Drain Valve Cleaning 42 Installing the New Cylinder 43 Extended Shutdown 43 Starting After Extended Shutdown 44 RH Maintenance Checklist ...

Страница 42: ...der life is dependent on water supply conditions and humidifier usage Replacement Cylinder The label on the existing cylinder identifies the cylinder type in its top left corner When ordering a cylinder always quote the three or five digit model number on the label the humidifier s serial number and the humidifiers voltage Serial number and voltage are located on the specification label on the lef...

Страница 43: ...rom the cylinder pins by pulling vertically 7 Using a flat screwdriver loosen the hose clamp where the hose is connected to the cylinder 8 Tip the top of the cylinder forward to pivot it out of the steam hose When free of steam hose lift the cylinder out Figure 33 Cylinder Removal Warning Disconnect main power at the external disconnect before any servicing The inside of the humidifier s cabinet c...

Страница 44: ...lve Lift the drain valve from the drain pan 4 Unsnap red coil cap on solenoid and remove the solenoid from the valve 5 Loosen brass nut holding actuator to plastic housing with a wrench and disassemble actuator 6 Clean actuator components and valve housing inlet port outlet port and cylinder port Put new o ring that was supplied with new cylinder into valve 7 Reassemble actuator making sure tapere...

Страница 45: ...responding color coded cylinder pin Push down completely Connect high water sensor plug Spring loaded plugs should fit snuggly onto the cylinder pin Replace if they are loose or damaged 4 Replace the humidifier cover and secure with two screws 5 Turn on power to humidifier with the external disconnect 6 Open supply water shut off valve 7 Turn the humidifier On Off Drain switch to On Sleeve and Sol...

Страница 46: ...d Refer to the Chapter on Start Up 2 Turn on the power to the humidifier with the external disconnect 3 Turn the On Off Drain switch to the Drain position 4 Wait until there is no water flowing to drain It usually takes less than 10 minutes 5 Follow the start up procedure in the chapter on Start Up Note As long as the RH is powered it will automatically drain the cylinder when there has not been a...

Страница 47: ...ed New cylinder model Should be same as removed cylinder Cylinder plug colors match cylinder dots Cylinder plugs snug and in good condition High Water Sensor plug snug and in good condition Cover replaced water shut off valve open On Off Drain switch On Disconnect Closed SYSTEM CHECK Yellow Led flashing No Yes Flash Sequence See Troubleshooting Chapter for actions if yellow LED is flashing Primary...

Страница 48: ...nization of Troubleshooting Chapter 46 Troubleshooting Requirements 47 General Troubleshooting 47 Humidifier 48 Steam Distributors 48 Blower Pack 48 Digital Humidistat 49 RH Faults 49 LED Flash Sequence 49 Clearing a Fault 51 RH Wiring Diagram ...

Страница 49: ...installed on the inside of the humidifier door A generic copy of the RH wiring diagram is also included at the end of this chapter for reference purposes When contacting your local representative or Nortec for troubleshooting assistance please ensure the serial number has been obtained for reference purposes NOTE Most humidifier faults are not caused by faulty equipment but rather by improper inst...

Страница 50: ... 2 1b Check wiring and operation of On Off devices connected to terminal 1 and 2 1c Check jumper is installed in fan safety loop terminal 8 and 9 2 No demand signal 2 Check voltage between terminal 3 and 4 For demand configuration 35 of full scale signal must be present for humidifier to start 3 Not configured correctly for On Off or modulating control 3 Check that J10 on control board is removed ...

Страница 51: ...as been installed with condensate traps and slope per installation instructions on page 10 Condensation in duct 1 Installation clearances not observed 1 Refer to distributor installation manual for required clearances Relocate distributor if required 2 Design conditions changed 2 Check supply air temperature and humidity to determine if conditions have changed 3 High limit not functioning 3 Check ...

Страница 52: ...Faults Yellow LED System Detected Cause Corrective Action s 1 flash Excess Current Current has exceeded 130 of max 1 Drain blocked water over concentrated 1 Clean the drain line 2 Drain solenoid not energized water over concentrated 2 Check and correct wiring to drain valve 3 Filling too fast fill valve damaged 3 Replace the fill valve 4 Filling too fast wrong fill valve 4 Check for correct fill v...

Страница 53: ... around it and to control board 6 Low water conductivity 6a Check conductivity of water If less than 150 microsiemens contact factory for recommendation 6b Add 1 4 teaspoon of salt to fill cup and restart unit 3 flashes No Current High Water Water level at top of cylinder with no current 1 Primary wire not looped through current transformer 1 Open disconnect rewire primary wire through current tra...

Страница 54: ...nal 120 P On Off Drain Switch Transformer 208 240 L1 120 P 208 240 L1 120 P S Note Install jumper from P to terminal corresponding to mains voltage Note Room Steam Distributor not included with RH Duct humidifier Hot Neutral Ground Hot Hot Ground Hot Hot Ground 120 VAC 208 VAC 240 VAC M ROOM Steam Distributor TB2 TB1 _ Rh Humidifier 120 208 240 Vac INTERNAL WIRING DIAGRAM DIAGRAM No 2548760 REV B ...

Страница 55: ...Spare Parts 52 Exploded View and Spare Parts List ...

Страница 56: ...53 Spare Parts RH Spare Parts Figure 37 RH Spare parts ...

Страница 57: ...Kit RH Blower Pack 12 1323020 GROUND CLAMP 13 2547999 Transformer Multi tap 120 208 240 to 24V 14 2549518 PCB RH Duct 10 lbs hr 2549519 PCB RH Space 8 lbs hr 15 1323097 Switch Rocker SPDT 5A 250V 16 1583008 LENS CLEAR 1 4in LED DISPLAY 17 1519002 Cylinder 202 18 2547963 Fill cup assembly RH 19 2547964 Cylinder Plug kit RH 20 1313244 VALVE FILL ASSLY 005 020 LBS 21 1455000 GASKET FOR FILL THRU CAB ...

Страница 58: ...55 Warranty ...

Страница 59: ...all 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 the companies manufacture such as controls humidistats pumps etc is limited to the warranty of the origin...

Страница 60: ... Proctor Avenue Ogdensburg NY 13669 CANADA Walter Meier Climate Canada Ltd 2740 Fenton Road Ottawa Ontario K1T 3T7 TEL 1 866 NORTEC1 FAX 613 822 7964 EMAIL northamerica climate waltermeier com WEBSITE www humidity com Certificate No 002419 ...

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