IMPORTANT CAuTION
Contents
1. Co O Figure 4 2 Maximum Mounting Heights Correction Factors Steam Pressure Correction Factor 150 160 170 180 190 200 These correction factors are to be used as multipliers to correct the maximum recommended mounting heights of unit heaters when operated with steam pressures other than 2 pounds or with water at other than average temperature of 220 F Figure 4 3 Horizontal Unit Delivery Figure 4 4 Vertical One Way amp Two Way Louvers 4 1 550 29 UNIT SUSPENSION INSTALLATION UNIT SUSPENSION Horizontal delivery units Model HSB HC Series All horizontal delivery units except Models HSB 18 and HSB 24 have two tapped holes in the top for unit suspension HSB 18 and HSB 24 models do not require independent suspension and are installed directly on their supply piping Models HSB 33 86 and HC 18 86 have 3 8 16 tapped holes model sizes 108 and larger have 1 2 13 tapped holes Piping support hangers or clamps are recommended and should be placed as close to the unit heater as possible For other models independent suspension can be made with threaded rods pipes or ceiling hanger brackets See Figure 5 1 Vertical delivery units Vertical delivery Models V VN 42 through V VN 279 have four tapped holes 1 2 13 in the top cover for unit Suspension Unit suspension for these models can be made with threaded rods pipes or ceiling hanger brackets Mode2. 18 Thru HC 340 HSB 33 Thru HSB 340 V VN 42 Thru V VN 279 V VN 333 Thru V VN 952 Piping See Figure 6 1 1 Branch piping to and from unit heater should include swing joints to allow for expansion and contraction of the piping without placing a strain on the unit heater element On steam systems the branch piping should be taken off and returned above the centerline of the supply and return lines 2 Install pipe unions and shut off valves in lines to and from each unit heater to allow maintenance or replacement of unit without shutting down and draining entire system For hot water systems include a balancing valve in return line for water flow regulation A drain valve should also be provided below each unit heater to allow removal of water from the heating coil if located in an area subject to freezing 3 In steam or hot water systems rapid air removal is required because entrained air is a cause of corrosion Hot water systems should be equipped with suitable air vent valves for rapid and complete removal of air at the high points and ends of both supply and return mains Proper air venting for steam systems can be achieved by use of a steam trap with an internal air vent 4 Traps must be located below the outlet of the unit Consult trap manufacturer for specific recommendations Each steam unit heater should be provided with a trap of sufficient size and capacity to pass a minimum of two time
3. Am MODINE 1 550 29 5H0707180000 February 2015 INSTALLATION AND SERVICE MANUAL Model HSB Horizontal Delivery Top Bottom Inlet Outlet Model HC Horizontal Delivery Side Inlet Outlet Models V VN Vertical Delivery Model PT PTN Power Throw IMPORTANT The use of this manual is specifically intended for a qualified installation and service agency A qualified installation and service agency must perform all installation and service of these appliances Inspection On Arrival 1 Inspect unit upon arrival In case of damage report it immediately to transportation company and your local factory sales representative 2 Check rating plate on unit to verify that power supply meets available electric power at point of installation 3 Inspect unit received for conformance with description of product ordered including specifications where applicable steam hot water unit heaters SP US C General Information Installation and service instructions in this manual are applicable to the three types of steam hot water unit heaters which should be installed in their proper applications for their most effective function as overhead heating units The copper coils are warranted for operation at steam or hot water pressures up to 150 Ibs per sq in gauge and or temperatures up to 375 F cupronickel tube units are warranted for operating pressures up to 250 PSI and operating temperatures u
4. 13 54 25 196 92110060 wa 67 35 260 30150 amp e e e e 65 1407 90 2010 40 40 1407 211085 2 6 9 3 0 1 5 2 0 1 0 OIDIS 55095 4 2 4 0 2 0 VAN PT PTN 500 610 1 4 988 B0 5829 V PT 952 Ratings shown are for Standard and Low Outlet Temperature Models qq 8884 6294 All motors include thermal overload protection except for units with power code 04 05 or 10 All HSB HC units V VN 42 thru V VN PT PTN 333 motor HP listed for power code 01 V VN PT PTN 333 thru V VN PT PTN 610 motor HP listed for power code 04 and V PT 952 motor HP listed for power code 05 For supply voltages of 208V 60Hz 1ph and all non explosion proof 3 phase voltages of 208 230 460 and 575 Model Numbers indicated with Note require that a 115V 60Hz 1 phase power code 01 unit heater be used with a shipped loose accessory transformer See literature 1 556 for Transformer Sizes See Note Model numbers indicated with Note can be ordered with a power code 208V 3ph 04 230 460V 3ph 05 that provides a motor matched to the supply voltage with amp draw as shown Alternately a 115V 60Hz 1 phase power code 01 unit heater could be used with a shipped loose accessory transformer See literature 1 556 for Transformer Sizes SERVICE A WARNING When servicing or repairing this equipment use only factory approved
5. 16 25 36 16 19 25 42 17 21 30 45 18 22 35 45 17 20 35 Co ON O IIN O1 O CI BA C1 CO C1 HSB HC 290 2 HSB HC 340 2 T PTN 385 PT PTN 500 PT PTN 610 2 PT 952 IVN 385 VN 500 VN 610 V 952 48 17 20 35 54 19 24 42 82 19 24 a epe With horizontal louvers opened 30 from the vertical plane HSB units have top and bottom piping connections HC units have side connections All have copper tubes V and PT models have copper tubes VN and PTN models have cupronickel tubes Mounting heights are maximum for heaters operating at standard conditions 2 lbs steam or 220 F water with 60 F entering air Heights listed for Louver or Cone Jet are with deflectors in fully opened position Refer to Figure 4 2 for correction of mounting heights under other operating conditions Maximum mounting height will be reduced as entering air temperatures exceed 60 F NO BA CO C1 No PO N a a GO N PM lt C1 EN n no J Oo ojojojojmj njoj jo Oc i Oo 1 2 amp C1 no BA N 1 1 INS gt
6. 8 14 11 00 12 40 12 94 OQ amp 1 uh N o o i co eolmim m no amp NN Table 9 2 Performance Data for Low Outlet Temperature Units at Standard Conditions of 2 Ib Steam and 60 F Entering Air Reduced Motor Speed 2 Air Data Maximum Heat Throw Final Air Type Model No Btu hr Mounting orSpread CFM Temp Condensate Height ft Max Height y CE Ib hr 9 12 HSB HC24L 14400 60 n 13 265 490 1 60 160 1 1 2 Motor 1 8 Horizontal units with horizontal louvers open 30 from vertical plane Vertical types equipped with cone jet deflector blades fully opened are shown in bold CFM for horizontal types is entering CFM CFM for vertical and Power Throw types is leaving CFM V and PT models have copper tubes VN models have 90 10 cupro nickel tubes Requires Solid State Motor Speed Controller 1 550 29 60 ENT AIR 290 290 550 550 550 625 625 075 075 075 075 075 1 140 IL IL L I I D 050 050 050 050 075 075 075 075 075 075 140 140 140 140 140 Data 200 F ENTERING WATER 60 F
7. SI METRIC CONVERSION FACTORS SPECIAL PRECAUTIONS THE INSTALLATION AND MAINTENANCE INSTRUCTIONS IM PO IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE SAFE EFFICIENT AND TROUBLE FREE OPERATION IN ADDITION 1 Start up and adjustment procedures must be performed PARTICULAR CARE MUST BE EXERCISED REGARDING by a qualified service agency THE SPECIAL PRECAUTIONS LISTED BELOW FAILURE 2 To check most of the Possible Remedies in the TO PROPERLY ADDRESS THESE CRITICAL AREAS COULD troubleshooting guide listed in Table 15 1 refer to the RESULT IN PROPERTY DAMAGE OR LOSS PERSONAL INJURY OR DEATH THESE INSTRUCTIONS ARE SUBJECT TO ANY MORE RESTRICTIVE LOCAL OR NATIONAL CODES applicable sections of the manual Table of Contents HAZARD INTENSITY LEVELS General InfortTiallOll Dress 1 1 DANGER Indicates imminently hazardous situation Special Precautions esiisa aN 2 which if not avoided WILL result in death or serious injury SI Metric Conversion 2 2 WARNING Indicates a potentially hazardous situation ide e i e NETT 3 which if not avoided COULD result in death or serious Unit M ii 3 4 injury nn oun ng ak a eles A AAE EE 3 CAUTION Indicates a potentially hazardous situation which Unit Suspension 5 if not avoided MAY
8. 15 1665 1 120 118 98 1 15 1 050 VANN139 139000 579 18 24 27 18 2660 1285 112 144 16 1 075 VAN161 161 000 671 20 27 30 20 2945 1 420 115 167 13 1075 Vertical V VN 193 193 000 804 22 30 33 22 3 500 1 690 116 20 13 1 075 Delivery V VN212 212 000 883 22 30 33 22 3610 1 740 120 219 1 3 1 075 VAN247 247 000 1029 26 34 39 26 4820 1910 11 256 1 2 1 075 279 279 000 1 163 30 37 45 30 5 460 2165 111 289 12 1075 333 333 000 1 388 30 37 45 30 5 980 2165 116 345 3 4 385 385 000 1 604 30 36 45 30 7 680 1 860 110 398 1 1 140 VN500 500 000 2 083 37 44 56 37 10 390 2520 108 517 11 2 1 140 VAN610 610 000 2 542 36 43 54 36 11750 2315 112 631 112 1 140 V952 952 000 3967 37 56 12170 2321 139 985 2 1440 Table 8 2 Performance Data for Standard Units at Standard Conditions of 2 Ib Steam and 60 F Entering Air Reduced Motor Speed 2 Air Data Motor Data Maximum Heat Throw Model No Btu hr Mounting Spread CFM E nans Condensate Approx Height ft Max Height veracity isa Ib hr RPM D D 2 2 3 4 6 8 HSB HC18 14 000 58 10 220 45 na 14 1 60 1000 HSB HC24 1
9. 333 V VN 385 Male supply V VN 500 V VN 610 952 Air Deflectors Optional 4 Mtg Holes Front and Rear P 5 8 Dia L uver s 1 Truncone Table 13 1 Model V VN and PT PTN Dimensions Male Connections Approx Model Fan NPT Shipping Number C Diameter p Wt Ib NE NM UNI 74 L 2 WANTS 34 658 moe 208 258 1632 16 rime ma 46 VANES 2434 eme mow gt 18 258 i612 16 im ma e VAN139_ 3434 67B 1838 216 3 iom 19 we 1 70 VANI6 3404 858 1838 238 3 912 1 wm 1 8 _ VNNiS3 3434 97 ib38 248 3 1912 19 iig 1 89 VNN2t2 93434 1278 eve 3 wie 19 2 1a 9 VNN247 3434 i278 ibs8 3 eae a 2 314 30 VNN2TS araa i438 212 Jam a 2 314 Ma VAN 333 VN 385 VN 500 VANE ste 198 sree 394 woe see 30 232 45 _ v z sa 2 48 30 Sig 8 30 30 3 3 49 PUPTN27S 3434 2258 2514 694 a 2 ia 32 PUPTNSSs 49 4 297 8 30 Team i438 72 3g 376 PTIPINGES 49 14 254 30 1594 i488 77 eae te PTIPTNSOO 43 14 29 30 20 4 488 27 7 PTPTN G10 PT 952 53 3 4 26 3 8 23 1 8 All dimensions in inches Dimensions shown are for Standard
10. CONDITION OR WITHIN SIXTY SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN Other TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN PEN THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST Components excluding Heat Exchangers Coils Condensers Burners Sheet Metal Heat Exchangers Coils Indoor and Outdoor Duct Furnaces and System Units Steam Hot Water Units Oil Fired Units Electric Units Cassettes Vertical Unit Ventilators Geothermal Units Compressors Vertical Unit Ventilators Geothermal Units Burners High Intensity Infrared Units Sheet Metal Parts All Products ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN EIGHTEEN MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST As Modine Manufacturing Company has a continuous product improvement program it reserves the right to change design and specifications without notice TP 6 MODINE Modine Manufacturing Company 2015 Modine Manufacturing Company 1500 DeKoven Avenue Racine WI 53403 Phone 1 800 828 4328 HEAT www modinehvac com
11. ENTERING AIR HOT WATER PERFORMANCE DATA STANDARD MODELS 20 F WATER TEMPERATURE DROP Table 10 1 Performance Data for Standard Units at Standard Conditions of 200 F Entering Water and 60 F Entering Air High Motor Speed Water Data Air Data Motor Data Pressure Maximum Heat Throw Type Model No Btu hr Drop Min Max Mounting or Spread CFM Approx Ft of GPM Height ft Max Height RPM Water 34 05 o ee o T550 1 550 02 1 550 04 1550 1550 10 1 625 d 28 1 625 3 SAR NINO 101 Z L SISIA 100 98 301 3 10 1 075 HSB HC 165 130 900 2 0 30 0 9 0 d Oj 13 0 15 oj 16 0 18 98 of 17 107 0 20 96 1 075 HSB HC 193 143 000 14 9 14 20 500 19 105 0 18 0 18 0 19 0 22 105 1 075 1 2 1 075 1 2 1 075 1 2 1 075 1 075 1 140 1 140 1 140 1 140 1 140 1 050 5 7 7 11 3 0 0 0 1 675 675 785 680 820 Dg 700 870 790 740 750 20 7 2 165 2165 99 1 860 120 2 8 70 0 4 5 60 0 B N C2 EK 2 520 2 315 2 321 825 15 1 00 1 050 90 96 O 106 1 050 101 120 2 auk o M O10 Cc No PO 0 0 0 2 2 2 1 3 25 0 1 120 101 1 15 1 050 16 20 22 22 10 300 1
12. and Low Outlet Temperature Models See Table 13 2 for optional air outlet accessory dimensions Table 13 2 Vertical Air Outlet Accessories Dimensions Model Number L T M P Z V 42 V 59 V 78 V 95 V 139 V 212 V 385 V 500 V 610 36 3 4 All dimensions in inches V247 V279 8 26 7 8 16 34 8 22 3 4 1 550 29 13 MOTOR DATA SERVICE Table 14 1 Motor Amp Draw Data 2 Amp Draw by Motor Type Voltage and Power Code Totally Enclosed Explosion Proof 115 60 1 208 60 1 230 60 1 208 60 3 230 460 3 575 60 3 115 60 1 230 460 60 3 Model Number HSB HC 18 HSB HC 24 33 HSB HC 47 63 HSB HC 86 108 HSB HC 121 HSB HC 165 193 HSB HC 258 340 V IVN 42 59 V VN 78 95 V NN 139 V VN 161 212 V NN 247 V VN PT PTN 279 V VN PT PTN 333 V VN PT PTN 385 Motor HP mo 21 9 28 o 13 198 211059 15 28 15 190 211050 pig f sa F o 2s iso e es taor wv2 67 35 90 12 ___266 f soso 390 2010 _ 1 e 1 1 saure e ee o NA 02 oa 05 10 06 09 0 195 16 10 Oo j 439 w2 30 10 140790 43 9 tao7e o 10o emee e ao tar
13. service replacement parts A complete replacement parts list may be obtained by contacting Modine Manufacturing Company Refer to the rating plate on the unit for complete unit substitution of parts or controls not approved by the factory will be at the owner s risk y CAUTION 1 Service or repair of this equipment must be performed by qualified service agency 2 Do not reuse any electrical component which has been wet Replace component IMPORTANT To check most of the Possible Remedies in the troubleshooting guide listed in Table 15 1 refer to the applicable sections of the manual Heating equipment should be serviced before each heating season to assure proper operations The following items may be required more frequently based on the environment in which the unit is installed and frequency of equipment operation All installation and service of these units must be performed by a qualified installation and service agency Before any service BE SURE TO TURN OFF THE STEAM OR WATER SUPPLY AT THE MANUAL SHUT OFF VALVES AND TURN OFF ALL ELECTRIC POWER TO THE HEATER Motors 1 Remove grease and dirt on motor during each inspection or lubrication Open frame motors should be blown clean every heating season or whenever coils are cleaned whichever is sooner 2 Lubricate motor according to manufacturer s instructions located on the motor When no motor oiling instructions are on the motor oil the motor every two t
14. with wiring diagram furnished with the appliance Any wiring different from the wiring diagram could result in a hazard to persons and property Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105 C Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 greater than the rated voltage A CAUTION Do not install units below 8 feet measured from the bottom of the unit to the floor Do not reuse any electrical component which has been wet Replace component Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 less than the rated voltage 1 Installation of wiring must conform with local building codes or in the absence of local codes with the National Electric Code ANSI NFPA 70 Latest Edition Unit must be electrically grounded in conformance to this code In Canada wiring must comply with CSA C22 1 Electrical Code 1 550 29 5 INSTALLATION OPERATION Figure 6 1 Suggested Piping Arrangements Return p Hot Water Systems Balancing Gate ll ni Moone Model HC Side Connections Model HSB Top and Bottom Connections Horizontal Unit Heater Connected to Overhead Hot Water Mains Pitch D Model HSB Pitch Down Top and Bottom Connections 20 Model Side Connections 2 Steam Main Petcock For Air A High Pressure Remov
15. 140 1 970 87 1 1 140 WAN 500L_ 295 000 307 28 830 1000 48 57 72 49 11000 2670 85 1 1 2 1 140 WAN610L_ 344 900 35 9 06 6 0 100 0 47 55 70 48 12 400 2445 86 1 1 2 1 140 V952L 546 700 569 07 14 0 1000 48 72 112800 2440 102 2 1 140 Table 11 2 Performance Data for Low Outlet Temperature Units at Standard Conditions of 200 F Entering Water and 60 F Air Reduced Motor Speeds o WaterData Data Air Data Motor Data Pressure Maximum Heat Throw Type Model No Btu hr Drop Mounting or Spread 9 CFM deo Ft of Height ft Max Height F d CE RPM Water 13 94 HSB HC 18L 8700 12 04 10 13 94 1 60 1 000 _ HSB IHC24L 10400 14 06 12 14 95 1 25 1 000 _ 91 125 1 000 Belen 96 112 1000 _ HSB HC86L 33900 46 06 18 28 93 18 1 000 1 5050 18 2 130 st 94 18 100 Horizontal units with horizontal louvers open 30 from vertical plane Vertical types equipped with cone jet deflector blades fully opened are shown in bold Non bolded mounting height spread data is for units without deflectors CFM for horizontal types is entering CFM CFM for vertical and Power Throw types is leaving CFM V and PT models have copper tubes VN and models have 90 10 cupro nickel tubes Requires Solid State
16. 234 15 358 6 HSB108 247 16 25 12 9 2 8 na 18 334 638 HSB121 24746 251 72 9 1 2 7 72 n Es HSB 165 30 12 30 1 2 9 1 4 9 12 14 21 14 334 638 HSB 193 30 1 2 30 2 9 1 4 9 12 14 21t14 3 3 4 63 8 HSB258 38 1 2 38 1 2 12 1 2 10 12 14 18 1 2 3 5 8 77 8 38 1 2 18 2 358 778 _ 18 1 2 3 6 8 7 7 8 6 1 2 HC33 15 17 12 834 6 2 12414 1 358 6 HC47 15 171 2 834 8 1214 M 358 6 amp 34 8 1234 15 358 6 8 3 4 9 1234 15 358 6 8 n 742 d 14 14 14 14 14 912 7 12 n 18 358 638 HC165 26 1 2 29 1 2 9 1 4 9 12 14 2114 HC193 1 2 32 12 93 4 912 14 2114 3 8 43 4 26 38 1 2 12 12 10 172 14 HC290 38 1 2 38 1 2 12 12 10 2 14 1032 14 181 2 3 58 _ All dimensions in inches Dimensions shown are for Standard and Low Outlet Temperature Models 12 1 550 29 18 1 2 3 58 8 34 18 2 35 8 8 34 8 34 HC18 1112 1234 6 5 6 6 DIMENSIONAL DATA Figure 13 1 Model Dimensions V VN and PT PTN Vertical Air Delivery Power Throw Air Delivery 42 Through V VN 279 V VN 333 Through V 952 Male Return EL BB Bracket for i V VN 610 952 la in Angle X Bracket Holes 1 2 13 Tap Male Return V VN
17. 5 HSB HCi21L 66 700 69 19 08 300 19 2 070 785 89 15 1 075 HSB HC 165L 113 200 118 66 20 300 48 3 480 920 89 1 3 1 075 HSB HC258L 147 400 154 32 25 700 23 54 4 655 735 89 1 2 1 075 HSBMC 2001 161 1001 188 ST 22 700 2 12 105 66 25 700 25 57 5575 760 93 1 2 1 075 23 000 24 04 05 100 14 18 21 14 960 835 83 1 30 1 050 32 600 34 03 08 150 17 23 25 17 1 190 1 035 86 130 1 050 V78L 43600 45 03 10 200 20 28 31 21 1 740 1 170 84 1015 1 050 53100 55 03 13 250 20 28 31 21 1 760 1 180 89 1015 1 050 VNN139L 81200 85 16 10 300 24 33 37 25 2860 1 380 87 16 1 075 VNN16iL 93900 98 13 13 400 28 37 41 28 3 400 1 640 86 1 3 1 075 Vertical V VN193L 112500 117 13 15 500 29 38 43 29 3710 1790 89 1 3 1075 Delivery V VN212L 123 400 129 09 20 600 29 38 43 29 3830 1845 91 1 3 1075 WWN247L 143600 150 12 20 600 34 45 51 35 5 110 2030 87 1 2 1075 VNN279L 162200 169 12 23 750 38 48 57 39 5790 2300 87 1 2 1 075 WAN 333L_ 198 300 207 23 23 750 38 48 57 39 6340 2300 90 3 4 1 140 WAN 385L_ 229 100 23 9 30 23 750 38 46 57 49 8
18. 8000 75 9 230 440 131 19 1 25 1000 HSB HC33 25000 104 10 13 395 440 na 26 1 25 1000 Doer i 1831 6e 18 1000 Horizontal units with horizontal louvers open 30 from vertical plane Vertical types equipped with cone jet deflector blades fully opened are shown in bold CFM for horizontal types is entering CFM CFM for vertical and Power Throw types is leaving CFM V and PT models have copper tubes VN and PTN models have 90 10 cupro nickel tubes Requires Solid State Motor Speed Controller 440 440 00 8 1 550 29 STEAM PERFORMANCE DATA LOW OUTLET TEMPERATURE MODELS 2 STEAM Table 9 1 Performance Data for Low Outlet Temperature Units at Standard Conditions of 2 16 Steam and 60 F Entering Air High Motor Speed 123 Horizontal Delivery 596 792 Air Data Motor Data Maximum Heat Throw Type Model No Btu hr Approx rir HSB HC 258 HSB HC 290 HSB HC 340 PT PTN 610L 470 000 1 958 2 V 42L V 59L V 781 5 6 6 9 9 6 25 V 95L 29 2 52 2 7 9 9 r rir N coo co 1 O 5 775 102 775 2 400 97 94 1 19 1 74 95 1 76 2 86 3 40 3 71 3 83 5 11 5 79 2 30 2 67 21 22 23 23 2 6 0 1 6 792 3 VAN 139L 1611 Vertical V VN 193L Delivery V VN212L E VAN 247L VAN 279L VAN 333L V VN 385L V VN 500L VAN 610L V 952L 6 34
19. 9 26 660 1 28 1 1 075 29 32 32 11 1 Vertical Delivery B 2 99 1 420 1 8 1 075 1 690 i 1 075 1 740 i 3 1 075 1 910 98 1 075 21 23 750 32 40 2165 98 1 075 3 8 28 750 32 40 2 165 1 140 50 3 3 75 0 32 39 1 860 98 1 140 2 520 96 1 140 VAN610 450400 469 10 60 1000 38 46 2315 97 11 2 1 140 V952 721 600 75 2 11 140 2000 39 2 321 2 1 140 E 1 1 1 2 4 5 0 5 5 5 6 2 2 5 1 7 1 1 1 1 2 4 5 3 7 5 0 E AININ N Table 10 2 Performance Data for Standard Units at Standard Conditions of 200 F Entering Water and 60 F Entering Air Reduced Motor Speeds Water Data Air Data Motor Data Maximum Heat Throw Type Model No Btu hr r ressurge Mounting or Spread CFM Guter Final Ar Approx Drop Ft eight ft Max Height temp RPM of Water D D Fpm F HSB HC18 9900 13 05 9 220 230 220 400 HSB HC24 12400 17 08 10 12 230 425 HSB HC33 16700 23 02 14 395 430 98 125 100 490 685 420 825 255 5 34600 47 06 15 18 685 HSB HC86 45900 63 10 16 20 825 515 no 18 100 HSB HC 108 64300 87 28 20 1255 490 106 1 8 100 Horizontal units with horizontal louvers open 30 fr
20. HSB108SB01SA 05011298 0007 3 9F30212A 5H58108C4 3H32251C2 Motor HP Volts Hertz Phase Amps 2 E ue 115 60 1 B Groupe F and G and Cae I locations and may bo operated wi mari fuk pressure Location Designation CSAFile No E E Bids per temperature code 3 Ordinary Location _ 0307470000 WARNING INSTALL UNIT AT LEAST 8 FT ABOVE THE FLOOR AND OUT OF REACH WWE ATTENTION INSTALLER A 2 45M MINIMUM AU DESSUS DU SOL ET HORS D ATTEINTE Modine Manufacturing Company 604 Liberty Lane 308 West Kingston Rhode Island 02893 Noisy Unit Loose bolts or screws Fan blade bent out of balance Dirt accumulation on fan blades Fan hub or blade rivets loose Motor shaft bearing worn Motor mounting bent fan not positioned properly in venturi Conduit too rigid transmits vibration noise BX cable touching unit heater chatters as casing vibrates Employees Complain of Hot Blast 1 Air stream aimed directly at employees 2 Louvers not adjusted properly 3 Wrong type of diffuser on verticals 4 Excessive final air temperature Unit Operates Too Long 1 Thermostat installed on cold wall or other improper location 2 Aquastat or pressure limit control not functioning properly 3 Unit is undersized Frequent Motor Failure 1 Voltage fluctuations too high or too low Excessive or insufficient lubrication Wiring to motor undersized Improper electrical conn
21. Motor Speed Controller 1 550 29 11 DIMENSIONAL DATA Horizontal Air Delivery Models Two Styles Figure 12 1 Model Dimensions HSB 18 193 Figure 12 2 Model Dimensions HSB 258 340 MOUNTING HOLES SIZES 33 86 3 8 16 TAP SIZES 108 193 1 2 13 TAP Mounting Holes Mounting Holes 1 2 13 Tap Pipe Connections G MOUNTING HOLES F PIPE CONNECTIONS Figure 12 3 Model Dimensions HC 18 165 MOUNTING HOLES Mounting Holes SIZES 33 86 3 8 16 TAP 1 2 13 Tap go SIZES 108 165 1 2 13 TAP Pipe Connections B G MOUNTING HOLES a E H PIPE CONNECTION EIL IL IL IL ILL I I SS 8 X Vertical deflector blades shown are standard on models HC 258 340 Table 12 1 Model HSB and HC Dimensions 0 and optional on model HC 193 D 115V Exp Connections A B C G H NPT Motor E F 1238 13 6 5 12 J 83 HSB24 1238 13 6 62 12 3 HSB33 16 38 171 2 8 3 4 6 12 12144 358 6 HSB47 16 38 17 1 2 83 4 8 1214 1 358 6 HSB63 20 7 16 21 2 amp 34 8 1234 15 3 5 8 6 HSB86 20 7 16 21 12 834 9 1
22. REES THAT SELLER S WARRANTY OF ITS PRODUCTS TO BE FREE FROM DEFECT IN MATERIAL AND WORKMANSHIP AS LIMITED HEREIN SHALL BE IN LIEU OF AND EXCLUSIVE OF ALL OTHER WARRANTIES EITHER EXPRESS OR IMPLIED WHETHER ARISING FROM LAW COURSE OF DEALING USAGE OF TRADE OR OTHERWISE THERE ARE NO OTHER WARRANTIES INCLUDING WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE WHICH EXTEND BEYOND THE PRODUCT DESCRIPTION CONFIRMED BY BUYER AND SELLER AS OF THE DATE OF FINAL AGREEMENT This warranty is void if the input to the product exceeds the rated input as indicated on the product serial plate by more than 596 on gas fired and oil fired units or if the product in the judgment of SELLER has been installed in a corrosive atmosphere or subjected to corrosive fluids or gases been subjected to misuse negligence accident excessive thermal shock excessive humidity physical damage impact abrasion unauthorized alterations or operation contrary to SELLER S printed instructions or if the serial number has been altered defaced or removed BUYER AGREES THAT IN NO EVENT WILL SELLER BE LIABLE FOR COSTS OF PROCESSING LOST PROFITS INJURY TO GOODWILL OR ANY OTHER CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND RESULTING FROM THE ORDER OR USE OF ITS PRODUCT WHETHER ARISING FROM BREACH OF WARRANTY NONCONFORMITY TO ORDERED SPECIFICATIONS DELAY IN DELIVERY OR ANY LOSS SUSTAINED BY THE BUYER Component Applicable Models BUYER S REMEDY FOR BREACH OF
23. WARRANTY EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER ANY COMPONENT WHICH SHALL WITHIN THE APPLICABLE WARRANTY PERIOD DEFINED HEREIN AND UPON PRIOR WRITTEN APPROVAL BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER BUYER S REMEDY FOR BREACH AS LIMITED HEREIN SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER FOR GAS FIRED PRODUCTS INSTALLED IN HIGH HUMIDITY APPLICATIONS AND UTILIZING STAINLESS STEEL HEAT EXCHANGERS BUYER S REMEDY FOR BREACH AS LIMITED HEREIN SHALL BE LIMITED TO TEN YEARS FROM DATE OF SHIPMENT FROM SELLER These warranties are issued only to the original owner user and cannot be transferred or assigned No provision is made in these warranties for any labor allowance or field labor participation Seller will not honor any expenses incurred in its behalf with regard to repairs to any of Seller s products No credit shall be issued for any defective part returned without proper written authorization including but not limited to model number serial number date of failure etc and freight prepaid OPTIONAL SUPPLEMENTAL WARRANTY Provided a supplemental warranty has been purchased Seller extends the warranty herein for an additional four 4 years on c
24. al Usually Thermostatic Trap Slightly Open May Be Used For Automatic Venting i Check Full Size Inverted Valve Dirt Pocket Bucket Trap Return Main Unit Heater Connection for High Pressure Steam Steam Systems Automatic Air Vent or Petcock Gate Valves Pitch Down Return Supply Pitch Down Vertical Unit Heater Connected to Lower Hot Water Mains Model HSB Pitch Down Top and Bottom Connections Model HC 28 1 Gate Valve S Connections 22 E770 oO MODINE Full Size Dirt Pocket Return Unit Heater Connection for Low Pressure Steam Open Gravity or Vacuum Return System Arrangements shown are recommendations only Where horizontal units are shown vertical units can be substituted or vice versa For modifications to piping suggestions shown refer to your local plumbing authority Electrical Connections Cont 2 Electric wiring must be sized to carry the full load amp draw of the motor starter and any controls that are used with the unit heater All units with power codes 04 05 09 or 10 polyphase motors must be provided with suitable overcurrent protection in circuit supplying heater at installation Overcurrent protectors should be sized based on motor current rating shown on the unit serial plate and applicable national electric code procedures All units are provided with an electrical junction box Junctio
25. and dirt to collect Exposed for easy cleaning with air hose and brush Motor All motors are totally enclosed Single phase types include built in thermal overload protection Casings Electrostatically applied gray green polyester powder coat paint finish applied over rust and corrosion treated steel lasts longer Fan Accurately balanced to operate quietly and at lowest possible power consumption Ibs STEAM STEAM PERFORMANCE DATA STANDARD MODELS 60 ENT AIR Table 8 1 Performance Data for Standard Units at Standard Conditions of 2 16 Steam and 60 F Entering Air High Motor Speed Air Data Motor Data Maximum Heat Throw Final Air Type Model No Btu hr Mounting or Spread Velocity Tem Condensate Approx Height ft Max Height y CE Ib hr RPM D D HSB HC18 18000 75 8 17 340 625 107 19 1 60 1 550 HSB HC24 24000 100 9 18 370 695 119 25 1 25 1 550 HSB HC33 33000 138 0 21 630 690 108 34 1 75 1 50 730 HSB HC63 63 000 263 14 29 1420 690 m 65 1 12 1 550 835 118 89 18 1625 pedis 880 3 4 VNN42 42000 175 11 15 17 11 950 825 103 43 130 1 050 VANS9 59000 246 14 19 21 14 1155 1005 11 6 1 80 1 050 VAN78 78000 325 15 20 23 15 1 590 1 065 109 8 1 15 1 050 VAN95 95000 396 15 20 23
26. at setting Check for proper rotation of fan All fans must rotate in a counterclockwise direction when viewed from the back HSB HC PT PTN or top V VN of the unit heater Automatic Control Operations Install one of the following operating systems for continuous automatic control pee S Intermittent Fan Operation Hot Coil A room thermostat starts and stops the fan motor An aquastat is sometimes strapped to the return piping to prevent fan operation when heat is not being supplied to the unit heater Continuous Fan Operation Intermittent Hot Cold Coil A room thermostat controls a valve which opens to allow steam or hot water to supply the unit and closes to shut off the supply when the thermostat is satisfied 1 550 29 OPERATION Figure 7 1 Horizontal Delivery Unit Cutaway Connections Female type permits direct connection of unit heater to the piping HC models have copper connectors at side of the unit Vertical fins Less opportunity for dust and dirt to collect Reduces cleaning Fins die formed for added strength and heat transfer Coil All air passes through coil Heating is uniform Design assures maximum control over air delivery and temperature of air leaving the heater Aluminum fins die formed for added strength increased heat transfer Fins mechanically bonded to serpentine copper tube Motor All motors are totally enclosed Single phase types include built in thermal overloa
27. d protection All motor wiring is terminated in an electrical junction box either supplied on the unit heater or as an integral part of the motor Fan Lightweight Blades accurately balanced and pitched to move air quietly and positively with minimum power requirement Safety fan guard Standard equipment Bolted steel rod fan guard completely surrounds the fan offering constant protection Deflector blades Adjustable horizontal air deflector blades are standard vertical blades are optional Casings Electrostatically applied gray green polyester powder coat paint finish is applied over rust and corrosion treated steel for long life Figure 7 2 Typical Horizontal Unit with Figure 7 3 Horizontal Unit with Optional Standard Junction Box Fingerproof Fan Guard Figure 7 4 Vertical Delivery Unit Cutaway Motor Cooling Cone Shields Junction Box Easier installation motor from coil heat prolongs life with single point electrical connection of insulation windings and lubricant metere Motor easily removable Modine design permits motor to be removed through opening below the unit especially important where heaters are installed close to ceiling Coil Aluminum fins mechanically bonded to tubes for maximum heat transfer All steam and water carrying passages between heavy steel pipe connections are copper or cupronickel Vertical fins Less opportunity for dust
28. ections Motor operating in too high air temperature Restricted air flow due to clogged coil or closed louvers Fan out of balance Unbalanced voltage on 3 power Coil Failure Unit Leaks 1 Severe internal corrosion from feedwater 2 Type of boiler treatment 3 Entrained air causing water hammer 4 Continuous operation above 150 PSI 375 F steam systems 5 Loose connection 1 550 29 15 COMMERCIAL WARRANTY Seller warrants its products to be free from defects in material and workmanship EXCLUSIVE HOWEVER of failures attributable to the use of materials substituted under emergency conditions for materials normally employed This warranty covers replacement of any parts furnished from the factory of Seller but does not cover labor of any kind and materials not furnished by Seller or any charges for any such labor or materials whether such labor materials or charges thereon are due to replacement of parts adjustments repairs or any other work done This warranty does not apply to any equipment which shall have been repaired or altered outside the factory of Seller in any way so as in the judgment of Seller to affect its stability nor which has been subjected to misuse negligence or operating conditions in excess of those for which such equipment was designed This warranty does not cover the effects of physical or chemical properties of water or steam or other liquids or gases used in the equipment BUYER AG
29. ertain compressors Provided a supplemental warranty has been purchased Seller extends the warranty herein for an additional four 4 years or nine 9 years on certain heat exchangers EXCLUSION OF CONSUMABLES amp CONDITIONS BEYOND SELLER S CONTROL This warranty shall not be applicable to any of the following items refrigerant gas belts filters fuses and other items consumed or worn out by normal wear and tear or conditions beyond Seller s control including without limitation as to generality polluted or contaminated or foreign matter contained in the air or water utilized for heat exchanger condenser cooling or if the failure of the part is caused by improper air or water supply or improper or incorrect sizing of power supply APPLICABLE WARRANTY PERIOD TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN Heat Exchangers Gas Fired Units OCCURS FIRST Heat Exchangers Low Intensity Infrared Units Compressors Condensing Units for Cassettes Burners Low Intensity Infrared Units TEN YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER WITHIN TEN YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN ONE HUNDRED TWENTY SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER FIVE YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED
30. he same building where heat loss is usually greatest See Figure 3 3 8 Arrange horizontal delivery units so they do not blow directly at occupants Air streams from this type of unit should be directed down aisles into open spaces on the floor or along exterior walls 9 When only vertical delivery units are installed they should be located so exposed walls are blanketed by their air streams See Figure 3 2 Figure 3 1 Horizontal Delivery Unit Location Figure 3 2 Unit Locations of Vertical Units In Narrow Buildings UNIT MOUNTING CAUTION Do not install units below 8 feet measured from the bottom of the unit to the floor Do not install unit above recommended maximum mounting heights Height at which unit heaters are installed is critical Maximum mounting heights for all units are listed in Table 4 1 and the height dimensions are shown in Figures 4 3 through 4 7 Maximum mounting heights for vertical models are given for units with or without optional air deflectors The data in Table 4 1 is based on operating conditions of 2 lbs steam or 220 F entering water with 60 F entering air When operating conditions are other than those above refer to Figure 4 2 for maximum mounting height correction factor To obtain the maximum mounting at actual operating conditions multiply the appropriate factor from Figure 4 2 by the mounting height in Table 4 1 The maximum mounting he
31. housand hours of operation with SAE20 motor oil for units in normal applications Adjust oiling according to usage and atmosphere 3 Some motors do not have oil fittings These motors are lubricated for long life and do not require further lubrication 4 Achange in line voltage higher or lower than motor nameplate rating may cause overheating and serious motor damage Check plant voltage conditions A separate manual starter with thermal overload protection device is recommended for those units that do not have motors with built in overload protection Coils 1 Clean coil at least once a year more often under unfavorable conditions Unless coil is kept reasonably free of dirt lint and grease its original heating capacity will be reduced possibly to a serious degree and motor damage may result Two commonly used cleaning methods are Loosen dirt by brushing fins on side where air enters coil and then turn on fan to blow dirt from unit Use high pressure air hose to loosen dirt by blowing from side where air leaves coil Side adjacent to louvers on blow through units side adjacent to fan on draw through units 14 1 550 29 SERVICE TROUBLESHOOTING 2 For thorough cleaning of coil remove motor and fan and spray a mild alkaline cleaning solution over the coil After a few minutes follow by a hot water rinse A steam gun can be used for spraying cleaning solution and hot water 3 Coils subjected to corrosive f
32. ight for all units is that height above which the unit heater will not deliver heated air to the floor at standard rating conditions Deflector Mounting If an optional air deflector has been furnished for vertical units itis always shipped separately and can be attached to the unit before suspension Vertical louvers for horizontal units and horizontal louvers for Power Throw units can also be added and positioned before installation Cone jet and louver type deflectors must be attached with angle brackets and machine screws to the bottom cover of the unit Refer to mounting instructions which are furnished with each deflector Depending on supply or return piping arrangement there is a possibility of interference between certain anemostat air deflectors and piping on some vertical air delivery unit heaters Check dimensions 1 550 29 UNIT MOUNTING Table 4 1 Maximum Mounting Heights Horizontal Type Power Throw r ft O T Model No Heigh Model No 11 PT PTN 279 T PTN 333 5 r Vertical Type with Deflectors Cone Jet Truncone Louvers Height ft Height ft Height ft Height ft L O T Std 7 8 9 22 9 fi 26 f 14 26 M 14 18 _ 19 L O T Std LOT 11 14 14 81 183 17 18 19 r WE Ea N 1 1 N N i 1 N O N Co PO O En N Co Co 35 14 36
33. ls V VN 333 through V VN 952 are equipped with an angle iron mounting bracket that has eight 5 8 diameter hanger holes permitting hook hoisting and suspension with cables if desired A 1 2 x 3 center U bolt can be inserted in the two holes at each end of the bracket to accommodate suspension with four threaded rods pipes or hanger brackets Power Throw horizontal delivery units Power Throw units are designed for horizontal air delivery and are equipped with hanger brackets for suspension Three hanger brackets are supplied for Model PT PTN 279 one on the front and two on the rear panel for three point suspension Only two hanger brackets are furnished on the front panel of Models PT PTN 333 through PT PTN 952 for required four point suspension use the two hanger brackets on the front panel and the two holes on the ends of the upper angle supports at the rear of the unit Each hanger bracket has a 5 8 diameter mounting hole for hook hoisting and suspension with threaded rods pipes or cables Note A pipe hanger adapter kit as illustrated in Figure 5 1 is available as an accessory from Modine The kit consists of two drilled 3 4 I P S pipe caps and two capscrews to facilitate threaded pipe suspension One kit will mount applicable HSB or HC models two kits are required for V VN models Figure 5 1 Unit Suspension Threaded Pipe Suspension a Threaded Rod Method Suspension udo Pipe Hanger Adapter Kit
34. n boxes are either integral to the motor or attached to the unit casing Units with explosion proof motors have an explosion proof junction box attached to the motor Any damage to or failure of Modine units caused by incorrect wiring of the units is not covered by Modine s standard warranty 3 Location of room thermostat when supplied should be in the natural circulating path of room air Mount thermostat about five feet above floor level where it will not be affected by heat from the unit or other sources of drafts that would prevent it from properly controlling room temperature See instructions packed with the thermostat 4 Speed controllers furnished with specified unit heater fan motors are packed separately and must be connected according to wiring diagram with each controller OPERATION Prior to Operation 1 Make sure fuses are installed in fused disconnect switches 2 Check all electrical connections to assure they are secure 3 Check rigidity of unit mounting Tighten all fasteners if necessary 4 Inspect piping strainers traps fittings etc Initial Start Up 1 Set thermostat to lowest position 2 Turn on power supply to unit 3 Open return gate valve and then open supply gate valve to unit Raise thermostat setting to desired position Adjust louvers if provided for desired heat distribution To insure proper sequence of operation cycle unit on and off a few times by raising and lowering thermost
35. o 100 F in steam applications 2 1 550 29 UNIT LOCATION UNIT MOUNTING UNIT LOCATION Figure 3 3 Combination Horizontal and Vertical DU Go lt Delivery Unit Installation DANGER Appliances with power codes 01 02 04 05 and 10 must not be installed where they may be exposed to a potentially explosive or flammable atmosphere 1 Units should not be installed in atmospheres where corrosive fumes or sprays are present 2 Be sure no obstructions block air intake or air discharge of unit heater 3 Locate horizontal delivery unit heaters so air streams of individual units wipe the exposed walls of the building with either parallel or angular flow without blowing directly against the walls Heaters should be spaced so the air stream from one supports the air stream from another heater See Figure 3 1 4 Columns machinery partitions and other obstacles should not interfere with air streams from unit heaters 5 Unit heaters installed in a building exposed to a prevailing wind should be located to direct a major volume of heated air along the windward wall of the building 6 Large expanses of glass or large doors that are frequently opened should be covered by long throw unit heaters such as large horizontal delivery of Power Throw unit heaters 7 Vertical delivery unit heaters should generally be located in the central area of the space to be heated Place horizontal delivery units along the walls of t
36. om vertical plane Vertical types equipped with cone jet deflector blades fully opened are shown in bold Non bolded mounting height spread data is for units without deflectors CFM for horizontal types is entering CFM CFM for vertical and Power Throw types is leaving CFM V and PT models have copper tubes VN and PTN models have 90 10 cupro nickel tubes Requires Solid State Motor Speed Controller 400 425 430 490 420 490 10 1 550 29 200 F ENTERING WATER 60 F ENTERING AIR HOT WATER PERFORMANCE DATA LOW OUTLET TEMPERATURE MODELS 20 F WATER TEMPERATURE DROP Table 11 1 Performance Data for Low Outlet Temperature Units at Standard Conditions of 200 F Entering Water and 60 F Entering Air High Motor Speed WaterData Data Air Data Motor Data Pressure Maximum Heat Throw Final Air Type Model No Btu hr Drop Mounting or Spread 9 CFM y ci Tem Approx Ft of Height ft Max Height y CE RPM Water 88 Tse Ta xe 32 5 7 r 39r 89 39 VD 3887 06 03 50 12 22 435 775 88 1025 1 550 5 19 800 20 02 26 695 780 1 25 1 550_ HSB MCe3L 37 900 40 04 05 200 35 1170 695 1 2 1550 Horizontal HSB HC 44600 46 05 200 18 38 1510 amp 0 87 18 1625 Delivery HSB HC108L 66 100 69 18 08 300 20 38 2150 815 88 18 162
37. p to 400 F Canadian Standards Association CSA requriements state that explosion proof units may not be used with a fluid temperature in excess of 329 F and still maintain their explosion proof rating for national electric code ignition temperature rating T3B for grain dust Motors are designed for continuous duty They can operate in a maximum ambient temperature of 104 F 40 C The unit heaters are listed by the Canadian Standards Association as certified and Canadian Registered heat exchangers CRN OH 9234 5C Does not apply to V PT 952 A CAUTION Do not remove outlet fan guard from vertical type unit heaters Steam horizontal and vertical delivery unit heaters are available in both standard and low outlet temperature models Low outlet temperature models are recommended primarily for installation on heating systems with steam pressures of 30 to 150 PSI When used at these steam pressures they provide lower outlet air temperatures for longer heat throw and because of wider fin spacing they are less susceptible to clogging in dusty atmospheres The model number of each unit heater indicates its rated Btu Hr capacity 1000 at 2 lbs steam pressure and 60 F entering air temperature For example an HSB 63 has an output of 63 000 Btu Hr at 2 lbs steam and 60 F entering air THIS MANUAL IS THE PROPERTY OF THE OWNER PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB SPECIAL PRECAUTIONS TABLE OF CONTENTS
38. re rating of at least 105 C Multiply By To Obtain Multiply By To Obtain Ensure that the supply voltage to the appliance as 0 249 0 305 indicated on the serial plate is not 5 greater than the Fs F 82 x 5 9 Gal Hr 0 00379 rated voltage Btu When servicing or repairing this equipment use only Btu ft galos 379 Btuhr 0 000293 factory approved service replacement parts A complete ft hr 0 000472 replacement parts list may be obtained by contacting ft hr 0 00000787 0 454 Modine Manufacturing Company Refer to the rating plate CFM ft min 0 0283 on the appliance for complete appliance model number CENTIES ET serial number and company address Any substitution of ii psig parts or controls not approved by the factory will be at the owner s risk A CAUTION Do not remove outlet fan guard from vertical type unit heaters Do not install units below 8 feet measured from the bottom of the unit to the floor Service or repair of this equipment must be performed by a qualified service agency Do not reuse any electrical component which has been wet Replace component Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 less than the rated voltage Heaters are designed for use in heating applications with ambient temperatures between O F 100 F in hot water applications and 10 F t
39. ressure of lack of hot water Aquastat not functioning Improper venting Steam trap not functioning Drip leg too short steam system Return line plugged steam system 8 Pump undersized or not operating hot water system Does Not Operate When Heat Needed 1 Defective motor or electrical connections 2 Thermostat aquastat or pressure limit control not functioning Fails to Deliver Heat to Floor Units mounted too high Operating on low speed Final air temperature too high Louvers not adjusted properly Wrong type of diffuser on verticals Undersized unit heater insufficient air delivery Wrong type of unit may require vertical delivery Cross ventilation or drafts Obstructions to air flow Casings 1 Periodic cleaning of casings is recommended to remove dirt grease and corrosive substances that may injure finish Rusted or corroded spots should be cleaned and repainted 2 Tighten fan guard and motor bracket Check fan for proper clearance free rotation and firm connection to shaft When servicing is complete tag unit to indicate date of inspection lubrication and cleaning Replacement Parts When requesting parts please contact your local representative Please have full model and serial number available See Figure 15 1 Figure 15 1 Model Identification Plate HYDRONIC UNIT HEATER COMMON PARTS Model No Serial No Motor Fan Coil
40. result in minor or moderate injury Nl Set PN ON suba E erm epe M ERE 5 6 4 IMPORTANT Indicates a situation which if not avoided FID 1 5 MAY result in a potential safety concern Electrical Connections 5 8 0 P 6 A DAN G 3 R OD CAN OM 6 Appliances with power codes 01 02 04 05 and 10 must Initial Start up T 6 be installed where they may be exposed to a potentially Automatic Control 6 explosive or flammable atmosphere 7 Performance Data 8 11 T WARN N G Dimensional Data t 12 13 Motor Ampere Mona ttn drag X 14 Disconnect power supply before making wiring connections SC NR RETE 14 to prevent electrical shock and equipment damage Service Troubleshooting sees 15 All appliances must be wired strictly in accordance with l art Y Back Page wiring diagram furnished with the appliance Any wiring different from the wiring diagram could result in a hazard to persons and property SI METRIC CONVERSION FACTORS Any original factory wiring that requires replacement must Table 2 1 be replaced with wiring material having a temperatu
41. s the normal condensate released by the unit at the minimum differential pressure in the system Trap capacity is based on the pressure differential between supply and return mains Steam systems should be equipped with a float and thermostatic trap or an inverted bucket trap with an air bypass 5 It is advisable to use a pipe line strainer before each steam trap draining a unit heater This protection will reduce the maintenance of the steam trap When strainers are used they should be installed between the unit heater and the trap and be the same size as the trap tapping In order to catch dirt and scale the strainer should have a screen perforation size smaller than the trap orifices 6 On systems where the steam supply to the unit heater is modulated or controlled by a motorized valve a vacuum breaker should be installed between unit outlet and the trap If a vacuum breaker is used it should be in conjunction with a float and thermostatic trap 7 Install a scale pocket at bottom of unit heater to collect dirt and scale as shown in illustrations Pipe diameter must be the same size as unit connections and about 6 long 8 Provide adequate pipe hangers supports or anchors to secure the piping system independently of the unit heater Electrical Connections A WARNING Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage All appliances must be wired strictly in accordance
42. umes should be checked and cleaned frequently 4 Provide controlled water treatment don t use excess of boiler compounds Contact your boiler compound supplier for proper usage or the services of a water treatment laboratory 5 Periodic internal flushing of the coils is recommended in areas where water supply is suspected of causing scale Use an alkaline chelant solution and introduce it at the main pump of the hydronic system Flush thoroughly WARNING USING INORGANIC OR MINERAL ACIDS SUCH AS MURIATIC HYDROCHLORIC ACID EVEN THOUGH INHIBITED MAY LEAD TO SEVERE DAMAGE INCLUDING CORROSION AND LEAKAGE 6 De aerate boiler feed water particularly if large amount of new water is used 7 Ensure rapid continuous and adequate condensate drainage by properly sized and installed traps and piping Check traps for sticking Clean strainers ahead of traps When traps don t work condensate accumulates in unit heater coil water hammer results 8 Adequately vent each unit 9 Use low pressure steam when possible Table 15 1 Troubleshooting Fails to Maintain Temperature 1 Undersized unit heater boiler pump or piping 2 Unit heater operating at low speed when sized for high speed 3 Unit heater mounted too high heated air not delivered to floor 4 Thermostat improper location or setting or not functioning 5 Dirty or clogged coil Unit Blows Cold Air 1 Manual shut off valve closed Insufficient steam p
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