Instruction Manual - Marley Engineered Products
Contents
1. screw on sub panel Amber Pilot Light Heater Terminal Box o screw in terminal box and other end attached to SDH 48kW 480V 3PH et Thermostat Outlet Thermostat Cutout Toggle Switch mon ranstormer 50 Amp Fusin Contactor 50 Amp Fusing peatas Contactor Ho Or Control Enclosure 5 Run these Wires through 1 4 Conduit One end attached and other end attached screw on sub panel Heater Terminal Box o screw in terminal box 0 SDH 60kW 480V 3PH PARTS LOCATION Front of Heater gt G gt ig iG Y a gt SA SOS sl Q N EB UH z G QQ si Front of Heater View Showing Element Placement and Routing of Thermostat Capillary and Mounting of Bulb ye i ej Twist Wire View Showing Element Placement and Routing of Thermostat Capillary and Mounting of Bulb Element Assembly 60kW Back of Heater Side View Detail Showing Pulley and Belt Installation Side View shown with Heater and Control Terminal Box Covers Removed All Sizes MAINTENANCE ELECTRIC SHOCK HAZARD Disconnect heater from power supply befor2. 12 Rotate fan blade to make sure the fan belt does not rub 13 Reinstall top belt cover grille and lower belt cover Tip Installing the grille before installing the lower cover makes it easier to access the two lower grille bolts Runt Throw Conduit hese Wires Attach all Wires on this Side of Contactor to Auxillary Terminals WIRING DIAGRAMS Inlet Thermostat Outlet Thermostat ceo OS OF S oggle Switc o Motor Relay oH 10 Heater Terminal Box BI Blk Red or Grey Blk Transformer Control Enclosure Green Pilot Li ight Amber Pilot Light Run these Wires Through 1 Conduit SDH 30kW 480V 3PH Inlet Thermostat Outlet Thermostat Cutout A A Wht Toggle Switch oso a 30 Amp Fusin Transformer Contactor 45 Amp Fusing 14 10 17 137 15 4 12 1 Control Enclosure Run these Wires through 1 4 Conduit Run these Wires Through 1 2 Conduit lt _ Green Pilot Ligh One end attached
3. allen wrench 3 8 nut driver 9 16 box wrench and a medium size phillips screwdriver 2 Remove the lower belt cover by removing the 5 sheet metal screws 3 Remove the rear grille by removing the 4 1 4 bolts and nuts 4 Remove the belt cover inside the blower by removing the 4 sheet metal screws 5 Loosen the 4 bolts 2 on each side See Fig 1 Figure 1 6 Loosen the 2 motor tension lock nuts and the fan belt tension adjusting bolts See Fig 2 Figure 2 Fan belt tension adjusting bolts 7 Loosen the set screw on the fan pulley or motor pulley Fig 3 shows the construction of the fan pulley the motor pulley is the same construction Figure 3 Fan belt tension adjusting bolts 8 Rotate the front half of the pulley clockwise until it bottoms then rotate counter clockwise until the set screw aligns with the flat in the threaded half of the pulley The pulley is now in position for adjustment See Table 1 for the number of turns out Tip Leave allen wrench in set screw and use free hand to hold fan blade Table 1 No of turns from full closed Fan No of turns from full closed Motor Pulley Fan Pulley RPM Motor Pulley Fan Pulley 9 Retighten set screw use of thread locking compound is recom mended 10 Adjust fan belt tension see Fig 2 A 1 2 of belt deflection is rec ommended Tighten lock nuts 11 Tighten the 3 8 bolts see Fig 1
4. N Cord Preparation for Portable Heaters 1 Determine the gage and number of conductors from the tabulation below using amps and phase from the heater nameplate It is not recommended that cord exceed 50 feet in length Min Wire Size SDH3043 6 Ga SDH3063 8 Ga SDH4843 4Ga SDH4863 4Ga SDH6043 2 Ga SDH6063 4Ga SET UP AND OPERATION Heaters in the heat mode should not be operated in room tempera tures above 130 F Fan motor is not designed to operate in ambients below 10 F The SDH is designed to be used with 20 diameter flex ible duct A feature of the heater is that the fan speed can be easily adjusted from 1500 to 2300rpm SDH heaters are shipped from the factory with the fan speed set at 1800 rpm The maximum external static load for the blower is 38 H O regardless of the fan speed selected The outlet temperature is controlled by a built in thermostat ic control the maximum outlet temperature is a function of the kW rat ing and the amount of air cfm flowing through the heater The addi tion of flexible duct will provide additional static load resulting in a lower cfm the lower air flow will reaise maximum outlet temperature until the static load reaches 38 H2O Exceeding the maximum static load will result in the tripping of the overtemperature control The per formance range of the SDH units is as shown in table B The motor and fan have variable pi
5. Portable High Marley Temperature Blower Heater AWARNING Attention Do not operate this heater in explosive areas Installation amp Maintenance Instructions Dear Owner Congratulations Thank you for purchasing this new heater by Marley Engineered Products You have made a wise investment selecting the highest quality product in the heating industry Please carefully read the installation and maintenance instructions shown in this manual You should enjoy years of efficient heating comfort with this product from Marley Engineered Products the industry s leader in design manufacturing quality and service The Employees of Marley Engineered Products Specifications Table 1 a tia Data OF Volts Amps BTU Height i Depth SDH3043 480 37 2 102 360 38 5 SDH3093 600 3 30 0 102 360 38 5 SDH4893 600 47 3 163 776 38 5 SDH6043 480 73 3 204 720 38 5 SDH6093 600 58 9 204 720 38 5 WARNING IMPORTANT SAFTY INSTRUCTIONS When using electrical appliances basic precautions should always be followed to reduce the risk of fire electric shock and injury to per sons including the following 1 Read all instructions before using this heater 2 This heater is hot when in use To avoid burns do not let bare skin touch hot surfaces If provided use handles when moving this heater Keep combustible materials such as furniture pillows bedding papers clothes and curtains at le
6. ast 3 feet 0 9m from the front of the heater and keep them away from the sides and rear Extreme caution is necessary when any heater is used by or near children or handicapped individuals and whenever the heater is left operating and unattended Always disconnect heater when not in use Do not operate any heater with a damaged cable or plug or after the heater malfunctions has been dropped or damaged in any manner Return heater to authorized service facility for examina tion electrical or mechanical adjustments or repair Do not use outdoors This heater is not intended for use in bathrooms laundry areas and similar indoor locations Never locate heater where it may fall into a bathtub or other water container 8 Do not run cord under carpeting Do not cover cord with throw rugs runners or the like Arrange cord away from traffic area and where it will not be tripped over 9 To disconnect heater turn thermostat off then remove plug from outlet 10 Connect to properly grounded outlets only 11 Do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock fire or dam age the heater 12 To prevent a possible fire do not block air intakes or exhaust in any manner Do not use on soft surfaces like a bed where open ing may become blocked 13 A heater has hot and arcing or sparking parts inside Do not use it in areas where gasoline paint flammable li
7. e servicing and or inspecting the heater failure to do so may result in electrical shock Replace or repair damaged cords or plugs immediately Check tight ness of all electrical connections prior to energizing heater Blow out or vacuum away any dirt or debris that may have accumulated around the control enclosure fan motor or heating elements RENEWAL PARTS IDENTIFICATION Element 11 Part No 118 304793 011 3 118 304793 012 3 Element 12 Motor 16 Contactor 20 Part No Part No 118 304793 013 3 193 121843 232 072 304551 008 118 304793 014 3 193 121843 233 072 304551 008 Transformer 21 Fuse Block 80 Term Block 84 Part No Part No Part No 315 304252 001 N A N A N A 315 304252 003 N A N A N A Fuse 81 Model No SDH3043 SDH3093 SDH4843 SDH4893 SDH6043 SDH6093 Wired directly to contactor 118 304793 011 3 118 304793 012 3 118 304793 011 6 118 304793 012 6 118 304793 013 6 118 304793 014 6 118 304793 013 6 118 304793 014 6 193 121843 232 193 121843 233 193 121843 232 193 121843 233 072 304551 008 2 072 304551 008 2 072 304551 008 2 072 304551 008 2 315 304252 001 315 304252 003 315 304252 001 315 304252 003 129 025643 001 129 025643 001 129 025643 001 2 129 025643 001 2 All units contain two sets of elements The ratings of the elements on the discharge end have a lower wattage than the elements o
8. icient static pressure drop may result in high air flow with the maximum temperature rise below the desired level even after the fan speed has been reduced to the minimum rpm An accessory SDHAD adjustable damper is available and can be attached to the heater to produce a static load ranging from 1 to 19 H O which will act to reduce the amount of air flow The Friction Loss Graph 4 provides the actual test data on the friction loss for the ADHAD damper attachment The losses are stated as the equivalent length in feet of 20 duct Friction Loss SDHAD Damper 90 80 Damper Full Closed 70 60 50 a seal 40 Damper Full Open m 30 20 10 u S D aa a pm 2 Zz uw 0 1400 1600 1800 2000 2200 2400 Fan RPM The SDH Dragon includes 2 thermostats The thermostat on the air inlet end of the unit is for the minimum air temperature desired The thermostat on the discharge end of the heater is for the maximum air temperature desired The two thermostats are wired in series with the heating element contactor coil The temperature range of both ther mostats is 60 180 F ACCESSORIES Rear of Heater 1 4 20 Wing nut Provided with SDHAD Front of Heater Duct Adapter Adjustable Damper Adjustable Damper and Duct Adaptor 3 FAN SPEED ADJUSTMENTS O the Pitch Diameter of the Sheaves Tools required 5 32
9. mages so the above exclusion or limitation may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state For the address of your nearest authorized service center contact Marley Engineered Products in Bennettsville SC at 1 800 642 4328 Merchandise returned to the factory must be accompanied by a return authorization and service identification tag both available from Marley Engineered Products When requesting return autho rization include all catalog numbers shown on the products How to order repair parts In order to obtain any needed repair or replacement parts warranty service or technical information a N please contact the Marley Engineered Products 2 Service Center toll free by calling 1 800 642 HEAT ty When ordering replacement parts always give the Y Engineered Products information listed as follows 1 The Part Number 2 The Model Number ECR 470 Beauty Spot Rd East 3 The Part Description 36513 Bennettsville SC 29512 USA 4 Date of Manufacture 3 05 5200 2691 000 161 304812 003
10. n the inlet end of heater The ends of the elements are color coded the lower wattage are color coded yel a Lower wattage elements discharge end yellow coded b Higher wattage elements fan end blue coded ow and the higher wattage are color coded blue PARTS COMMON TO ALL UNITS Description Temperature Control Part No 300 019560 002 Hi Limit Cut out 300 049200 004 Toggle Switch 292 046123 001 Blower Assembly 021 304823 009 Inlet amp Outlet Grille 134 304780 002 2 Caster Locking Handle Right Side 375 122535 007 139 304779 003 Handle Left Side 139 304779 004 Semipneumatic Wheel 333 557518 004 2 Pulley Var Pitch 7 8 225 305091 004 Pulley Var Pitch 5 8 225 305091 003 Pulley Belt Pilot Light Green 017 049702 009 213 122066 043 Pilot Light Amber 213 122066 042 Thermostat Knob 169 017949 004 Thermostat Label 220 019122 010 128 026510 005 3 128 026510 005 3 128 026510 006 128 026510 006 6 303 047468 004 303 047468 004 303 047468 004 303 047468 004 LIMITED WARRANTY All products manufactured by Marley Engineered Products are warranted against defects in workmanship and materials for one year from date of installation except heating elements which are warranted against defects in workmanship and materials for five years from date of installation This warranty does no
11. quids are used or stored 14 Use this heater only as described in this manual Any other use not recommended by the manufacturer may cause fire electric shock or injury to persons 15 This heater is not intended for use with an extension cord 16 Do not use as a residential or household heater 17 SAVE THESE INSTRUCTIONS WIRING ELECTRIC SHOCK HAZARD Disconnect all power before installing or servicing heater Failure to do so could result in personal injury or property damage Heater must be effectively grounded in accor dance with the National Electrical Code NFPA 70 1 Use heater only on the voltage and frequency specified on the nameplate 2 All wiring should be done in accordance with local codes and the National Electrical Code by a qualified person 3 Branch circuit wire for connection to heater must be at least 90 C wire 4 The top access panel is secured by 4 screws that must be loosened to gain access Table A Model Number 5 A ground terminal is provided near the power terminal board The ground wire should be connected before other connections are made Refer to Table A for proper size SO grade of cable A proper strain relief must be used with SO grade cable Heaters are factory pre wired for 3 phase delta operation Some units can be converted to single phase operation by changing the wiring The appropriate wiring diagram is also located on the back of the wiring compartment cover FA
12. t apply to damage from accident misuse or alteration nor where the connected voltage is more than 5 above the nameplate voltage nor to equipment improperly installed or wired or maintained in violation of the product s installation instructions All claims for warranty work must be accompanied by proof of the date of installation The customer shall be responsible for all costs incurred in the removal or reinstallation of products including labor costs and shipping costs incurred to return prod ucts to Marley Engineered Products Service Center Within the limitations of this warranty inoperative units should be returned to the nearest Marley authorized ser vice center or the Marley Engineered Products Service Center and we will repair or replace at our option at no charge to you with return freight paid by Marley It is agreed that such repair or replacement is the exclusive remedy available from Marley Engineered Products THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE AFORESAID EXPRESSED WARRANTIES ARE HEREBY DISCLAIMED AND EXCLUDED FROM THIS AGREEMENT MARLEY ENGINEERED PRODUCTS SHALL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES ARISING WITH RESPECT TO THE PRODUCT WHETHER BASED UPON NEGLIGENCE TORT STRICT LIABILITY OR CONTRACT Some states do not allow the exclusion or limitation of incidental or consequential da
13. tch pulleys for changing the air Table B Max AT at Max Static Load Static Load 38 H20 38 H20 38 H20 Fan RPM flow and the AT Graphs 1 2 and 3 provide the performance data for each size heater at the recommended minimum medium and maxi mum fan speeds The curves end at the point where the 38 H20 stat ic load has been reached The temperature rise is based on using Marley 20 diameter SDHFX20 flexible duct The performance curves were determined by actual testing therefore using flexible duct not supplied by Marley may vary the results The introduction of bends in the ducting will add static load equivalent to adding 15 feet of duct length for each 90 bend and 25 feet of duct length for each 180 bend Temperature Rise F WIRING cont d Temperature Rise vs Duct Length 30 kW 75 100 125 150 175 Duct Length in Feet Temperature Rise vs Duct Length 48 kW 50 75 100 Duct Length in Feet Temperature Rise vs Duct Length 60 kw 50 75 100 125 150 175 Duct Length in Feet SDH heaters can be easily field if modified to vary the fan speed There may be some circumstances where the use of short lengths of duct may not create sufficient pressure drop to achieve the desired tem perature rise This may also be the case of using the unit without a duct This insuff
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