Carrier WEATHERMAKER 39B User's Manual
Contents
1. upeeseoed BY 3d E ISI Draw Thru Central Station Weathermaker SoPreseneD By 398 2527 G 7 INDEX b Protect bearings and rotating components PAGE against moisture abrasives and corrosion PREINSTALLATION 1 Cover entire unit with tarp or plastic INSTALLATION 6 coverall Extend cover under unit if stored Base Unit Assembly 6 on ground Moisture and condensation can Accessory Assembly 9 cause loosening of internal insulation is Suspension and Mounting Periodically rotate fan shaft slowly by hand iping Coil Removal and Reversing 19 Duct Connections 19 Motor and Drive 19 Belt Guard 22 Ed me EB FIELD SUPPLIED Coil Removal 23 SUSPENSO ROS Fan Section Access 23 Fan Shaft Bearing Replacement 23 AEN Fan Shaft Removal 29 ved CUP Fan Wheel Removal 24 5 TURN NUT TO LEVEL UNIT PREINSTALLATION 1 Use spacer bars when rigging to avoid bending unit flanges per Fig 1 2 Check items received against packing list and Tables 1 2 and 3 Notify Carrier at once of i CORNER ANGLE ON eye HOLD DOWN ANGLE 3 Examine for damage incurred during shipment Especially check for bent fan wheel or shaft which may result in future vibration problems If any damage is found immediately file claim with transit company 4 Check fan wheel setscrews sizes 040 060 or fan wheel clamps sizes 070 140 for secure ness Refer to Table 4 or Fig 2 respectively a Bolt threads with a dark green finish2. accessory with seven 3 8 16 x 3 4 in hex head cap screws and matching flange weld nuts Fasten flange 6 to matching flange of cooling coil section with seven 1 4 20 x 1 2 in self tapping screws and matching flange engage ment holes Fasten flanges 7 to matching flanges of appli cable accessory with two 1 4 20 x 1 2 in self tapping screws per two flanges and matching flange engagement holes bypass duct or lock nuts duct extension or bypass heat section Fasten flanges 8 to matching flanges of appli cable accessory or cooling coil section with five 3 8 16 x 3 4 in hex head cap screws and hex nuts per two flanges Tighten all screws securely Replace coil in preheat section FACE AND BYPASS DAMPER SECTION Size 130 thru 140 Refer to Fig 10 1 Follow preceding steps 1 and 3 2 Fasten flange 1 to matching flange of applicable accessory except bypass heat section arranged for bypass cooling only with seven 1 4 20 x 1 2 in self tapping screws and locknuts Fasten flange 1 to matching flange of bypass heat section arranged for bypass cooling only as follows a Line up flange 1 with matching flange of accessory bypass heat section b Drill seven engagement holes in matching flange with a no 3 drill c Fasten flange 1 to matching flange with seven 1 4 20 x 1 2 in self tapping screws Fasten flange 2 to matching flange of appli cable accessory or cooling coil section preheat coi
3. Row Split Coil DRILL amp SCREW PAN TO COVER SHEET DRILL HOLE FOR TUBE IN COIL COVER SHEET CONDENSATE PAN Fig 17 Expansion Valve Condensate Pan CHILLED WATER HOT WATER AND STEAM COILS 1 Use unions or flanged coil connections for ease of service per Fig 18 2 Install a tee with a pipe plug at coil connection to facilitate air blow thru coil for freeze protection per Fig 18 CONDENSATE DRAIN Connect drain line and trap per Fig 19 to condensate drain connection Do not reduce pipe size Run drain line to nearest open site drain On unit sizes 070 thru 140 install a field supplied cap on unused drain connection 18 HUMIDIFIERS Humidifier water and steam supply must be odor free and uncontaminated Consideration shall be taken by installer as to corrosive and odor effect from hard or contami nated water Carrier assumes no responsibility for problems caused by inadequate water treatment General It is recommended that a strainer be installed in supply line Steam grid humidifiers require a drain line trap with a water seal to offset unit negative static pressure Trap is similar to that shown in Fig 19 Fig 18 Coil Connections Fig 19 Cooling Coil Condensate Piping Coil Removal and Reversing 1 Remove coil coverplate 2 Remove air baffle from both ends of coil on leaving air side 3 Remove coil hold down bolts from both ends of coil 4 Slide coil ou
4. Tabie 7 Motor Base Usage Unit Sizes 070 thru 140 HP FRAME MOTOR BASE RANGE SIZE RANGE CRADLE DIM in 56 2561 or 2847 3267 25 50 324U 356U Corresponds to frame sizes for open dripproof 1750 rpm motors only MTR BASE PART NO 39B A070 453 39BA110 453 23 x 26 UNIT SIZES 040 THRU 060 Refer to Fig 21 1 Set motor mounting bracket position min or max to provide required drive center to center distance 2 Install motor on motor mounting and adjusting brackets with hardware from accessory drive package 3 Install adjusting screw locknuts and rubber bumpers shipped in cloth bag taped to motor base on motor adjusting bracket Save three 1 4 20 x 1 2 in self tapping screws for belt guard installation 4 Remove protective cover and clean grease from fan shaft with solvent 5 Apply a light coat of grease or white lead to fan shaft 6 Install fan and motor sheaves with correct angular and parallel alignment per Fig 22 Refer to drive package carton for additional instructions Sheave Alignment 7 Loosen locknut and adjust belt tension by turning adjusting screws Refer to Table 8 for correct belt tension and note following a Correct belt tension is lowest tension at which belts will not slip during operation b Correct belt tension may cause belts to slip and squeal briefly on start up which is normal and will disappear after un
5. 21 8 40 33 28 29 24 2 0 3 2 4 4 32 8 5 0 42 3 5 8 0 65 55 55 46 39 6 60 5 0 42 95 80 6 5 7 0 6 0 50 8 80 65 5 5 12 5 10 5 85 8 5 70 60 10 10 0 8 0 7 0 15 0 12 5 10 5 11 0 9 0 7 5 12 112 0 10 0 8 0 18 5 15 0 12 5 13 5 11 0 9 5 15 15 0 17 0 14 0 11 5 17117 0 14 0 11 5 26 0 21 0 18 0 19 0 15 5 13 0 20 71200 116 5 13 5 31 0 25 0 21 0 23 0 19 015 5 25 250 210 27 0128 0123 0 19 0 30 30 0 25 0 20 0 45 0 37 0 31 0 33 0 27 0 23 0 35 35 0 29 0 24 0 54 0 44 0137 0 39 0 32 0 27 0 40 40 0 33 0 27 0 160 0 49 0 41 0 44 0 36 0 30 0 NOTES 1 2 2 Orifice sizes 2 1 2 3 4 5 6 and 8 are not available for nozzles Nozzle designation is stamped on nozzle G indicates 7 8 in ODM distributor indicates 1 1 8 in ODM distributor indicates 1 3 8 in ODM distributor A indicates 1 5 8 in ODM distributor Therefore only the nozzles having the same letter are physically interchangeable c Standard coils above size 080 are face split with the load for each coil divided evenly between the two or three distributors Unit sizes 130 135 and 140 contain two coils each of which are face split The percentage of total unit load handled by each distrib utor is as follows 1 Unit sizes 040 thru 080 10096 2 Unit sizes 090 thru 120 50 8 row coil on 120 3 Unit size 120 with 8 row coil 33 1 3 4 Unit size 130 25 5 Unit size 1
6. 6 1 Remove shipping crate and apply sealing com pound to flanges on air intake side of accessory 2 Remove filler panel from cooling coil section and save for fan section assembly 3 Place air intake side of accessory on top of air discharge side of cooling coil section 4 Fasten flanges 1 to matching flanges of cooling coil section with five 3 8 16 x 3 4 in hex head cap screws lockwashers plain washers and hex nuts per two flanges 5 Tighten all screws securely Fig 6 Assembly of Accessory Bypass Heat Section Arrangements D 31 D 35 Sizes 135 140 Only BYPASS DUCT Arrangement A only Refer to Fig 7 1 Sizes 080 thru 110 a Place one endpiece on each flange 8 of cooling coil section with fiber glass insu lated sides facing each other Ensure air intake side of bypass duct is flush with edge of flange 9 b Fasten flange 1 to 8 with three 1 4 20 x 1 2 in self tapping screws and both flange 8 engagement holes c Fasten tabs 7 to flanges8 with a 3 8 16 x 3 4 in hex head cap screw two plain washers and hex nut per tab d g Fasten flange 2 to matching surface of cooling coil section with seven 1 4 20 x 1 2 in self tapping screws and matching surface engagement holes Fasten top panel to each flange 3 and 4 with two and three 1 4 20 x 1 2 in self tapping screws respectively per end and each flange 3 and 4 engagement holes Fasten one angle 5 to each fl
7. STEAM GRID HUMIDIFIERS Normally shipped assembled in unit If a separate shipment is made refer to Installation Instructions provided with humidifier Unit Suspension and Mounting 1 2 Level unit after mounting to insure proper coil and base pan drainage Rig and suspend base unit from same points per Fig 1 Note that unit sizes 130 and 140 must be installed on a suspended platform Rig and suspend accessory combination mixing box and filter section as follows a Directly fastened to base unit Rig and suspend from two top corners on air intake end of accessory Use one suspension rod per corner b Remote from base unit Rig and suspend from four top corners of accessory Use one suspension rod per corner VIBRATION ISOLATORS 1 Arrangement unit size 070 thru 140 A minimum of six isolators should be installed for proper support one on each corner of coil section and one on each corner of air discharge side of fan section Two additional isolators may be installed on air intake side of fan section Arrangements B and D unit sizes 070 thru 140 and all arrangements unit sizes 040 thru 060 Four isolators should be installed for proper support Two isolators are required under combination mixing box and filter section for floor mounting Vibration isolator hangers are required on combi nation mixing box and filter section for sus pended applications per preceding steps 2a
8. accessory mixing box which is shipped separately 2 More holes may exist than indicated by these instructions Use only those which line up 3 Fastener package is shipped with each fan section Sealing compound is shipped inside belt guard 4 Remove any accessories attached to base unit that are not in their final location per Tables 1 2 and 3 5 Unit suspension is simplified by completely assembling units prior to rigging 6 Unit sizes 130 thru 140 must be assembled on a platform for suspended applications FN y UNITS 39BA BB SIZES 070 THRU 120 Arrange ment A Refer to Fig 3 and Table I 1 Remove shipping skid s and apply sealing compound to flanges on air intake side of fan section Face air intake side of fan section toward air discharge side of cooling coil section Fasten flange 1 to 2 with five 3 8 16 x 3 4 in hex head cap screws lockwashers and flange 2 weld nuts Fasten flanges 3 to 4 with one 3 8 16 x 3 4 in hex head cap screw lockwasher and hex nut per two flanges Fasten corners 5 to 6 with one 3 8 16 x 3 4 in hex head cap screw lockwasher two plain washers and hex nut per two corners Corner holes are 11 16 in diameter Fasten external flange 7 to 8 with three 3 8 16 x 3 4 in hex head cap screws lock washers and flange 8 weld nuts 7 Tighten all screws securely UNITS 39BA BB SIZES 130 THRU 140 AND 39BC SIZES 135 AND 140 Arrangement A Refer to Fig 3 and Ta
9. accessory with three fasteners per preceding step 3a b Arrangement D Fasten flange 1 to match ing flange of fan section or accessory bypass heat section with three 1 4 20 x 1 2 in self tapping screws and matching flange en gagement holes Fasten flange 1 to matching flange of duct extension with three fasteners per preceding step 3a c Fasten flanges 2 and 3 to matching flanges of applicable accessory or cooling coil section with three fasteners per preceding step 3a d Fasten flanges 4 and 5 to matching flanges of applicable accessory ies and or cooling coil section with four size 070 or five sizes 080 thru 120 fasteners per preceding step 3b Tighten screws securely When face and bypass damper section is used with accessory humidifier minimum stops may be required to ensure air flow thru humidifier at all times Install stops on damper actuator linkage as opposed to directly on damper blades to prevent possible damage Fig 9 Assem PREHEAT COIL SECTION AND OR SPRAY HUMIDIFIER SECTION WITH AND WITHOUT BYPASS Sizes 130 thru 140 Refer to Fig 9 1 Remove shipping crate and apply sealing tape to flanges on air discharge side of spray humidifier section only Remove coil from preheat section to provide access to internal flanges 5 6 and 8 Face air discharge side of accessory ies toward air intake side of cooling coil section NOTE Spray humidifier section must be adjacent to cool
10. are shipped completely assembled ASSEMBLED ASSEMBLED Shipped Assembled D 10 Shipped D 25 RH Assembled Used on 39B 070 110 120 140 Used on 39B Not Not D 11 Shipped D 26 Shipped Assembled Available Assembled Available Used on 39B Used on 39B 070 120 070 090 100 120 130 140 D 12 Shipped Shipped Assembled Assembled ur P Used on 39B 070 140 070 090 135 140 RH Used 39B 070 130 140 070 110 135 140 Used on 398 070 140 070 090 100 130 135 140 D 13 Assembled D 14 Shipped D 29 Shipped Not Assembled Assembled Available Used on 39B 070 110 Used on 39B 070 090 130 140 D 15 Shipped Assembled Assembled 8 Lp Used on 39B Used on 39B 070 140 070090 100 130 135 140 Not D 17 Shipped D 34 i Assembled Available Used on 39B 070 110 Used on 39B 130 140 PS D 18 D 35 B LF lit TETE Used on 39B 070 140 070 110 120 130 135 140 Usedon39B 135 140 LEGEND BH Bypass Heat Section LF Low Velocity Filter Section CC Cooling Coil Section Base Pan O L Separate Crates or Skids Fan Section PH Preheat Coil Section FB Face amp Bypass Damper Section PS Plenum Section d 2 Location f i HF High Velocity Filter Section RH Reheat Coil Section I cation for Shipping only on one Skid NOTE Combination m
11. 140 six cooling coil section sizes 135 and 140 3 8 16 x 1 in hex head cap screws and hex nuts per two flanges Tighten all screws securely When face and bypass damper section is used with accessory humidifier minimum stops may be required to ensure air flow thru humidifier at all times Install stops on damper actuator linkage as opposed to directly on Fig 10 Assembly of Accessory Face and Bypass Damper Section Sizes 130 140 FILTER SECTION OR COMBINATION MIXING BOX AND FILTER SECTION sizes and arrangements high and low velocity Refer to Fig 11 Combination Mixing Box and Filter Section All Sizes and Arrangements High and Low Velocity 1 Remove shipping skid 2 Face air discharge side of accessory toward air intake side of applicable accessory or cooling coil section 3 Fasten support legs to low velocity filter sec tion or filter section of combination mixing box and filter section sizes 070 thru 120 only with two hex head cap screws plain washers and nuts per leg 4 Fasten flange 1 to matching flange of applicable accessory or cooling coil section with three sizes 070 thru 120 or seven sizes 130 thru 140 preheat coil section sizes 135 and 140 excluded 3 8 16 x 3 4 in hex head cap screws and matching flange weld nuts 5 Fasten flange 1 to matching flange of preheat coil section sizes 135 and 140 per preceding steps 5a 3b and 3c substitute flange 1
12. 15 diameter long riser located between reducer fittings must be sized for high velocity Refer to Carrier System Design Manual Part 3 for suction pipe sizing charts This piping length will normally result in an equivalent length of 20 ft and should be sized for a pressure loss corresponding to 0 5 F Remaining suction line should be sized for a pressure drop correspond ing to 1 5 F for a total suction line pressure drop corresponding to 2 F Suction risers must be sized to provide ade quate oil return at minimum load When a suction riser is designed to permit oil return at minimum load the pressure drop at full load may be too great If this situation occurs a double suction riser should be used Refer to Carrier System Design Manual for details of sizing Expansion Valve field supplied 1 Expansion valve must satisfy following a Design load per distributor b Available pressure drop c Valve inlet temperature condensing tem perature minus subcooling d Design evaporator temperature e Valve must have non condensing charge power element f If selection falls between two valves choose smaller Install expansion valve s Refer to Fig 14 15 and 16 for proper location of sensing bulb and equalizer connection Install condensate pan s under expansion valve s per Fig 17 P XN E Fig 15 Suction Line Piping Face Split Coil 17 Fig 16 Suction Line Piping
13. 35 2346 for each distributor of the smaller coil and 2796 for each distributor of the larger coil 6 Unit size 140 with 4 and 6 row coil 20 each distributor of smaller coil 30 each distributor of larger coil 7 Unit size 140 with 8 row coil 20 each distributor of both coils except Factory installed nozzle should be replaced if the following relationship is not met design load per distributor nozzle orifice capacity Table 6 If two nozzles satisfy above relationship choose the smaller 0 90 to 1 20 Mark final nozzle size where indicated on unit label for future reference This will show nozzle size has been checked Partial Load Operation System controls must be designed with consideration of following 1 coil or coil split served by a single refrig erant distributor and expansion valve can be expected to operate satisfactorily at less than 50 of design load As load reduces a portion of coil surface must be deactivated so that remaining active coil or coil splits operate between 50 and 100 of design load Face split coils may be used when air quantity is constant In variable volume systems row split coils must be used If operation must be below 50 of design load hot gas bypass must be used Refer to Carrier System Design Manual for details Suction Piping IL 2 Connect suction piping per Fig 14 15 and 16 Suction line from evaporator to end of
14. 60 with a no 5 drill or four engagement holes sizes 070 thru 120 with a no 3 drill in side of fan section using mounting bracket clearance holes as templates 2 Secure guard to fan section witi three 1 4 20 x 1 2 in self tapping screws UNIT SIZES 130 THRU 140 1 Position belt guard and drill eight engagement holes with a 3 drill in side of fan secti 1 using mounting bracket clearance holes a templates 2 Secure guard to fan section with eight 1 4 20 x 1 2 in self tapping screws 3 Position two unattached mounting brackets over unit front or top structural member and secure to guard with four 1 4 20 x 1 2 in self tapping screws and guard engagement holes 4 Drill four engagement holes in unit structural Fig 26 Securing the Bearing Eccentric Locking Collar members with a no 2 drill using mounting Table 9 39B Filters 2 Inches Thick bracket clearance holes as templates No Size 5 Secure two mounting brackets to unit struc rene LOW VELOCITY AND HIGH tural members with four 1 4 20 x 1 2 in self MIXING BOX VELOCITY tapping screws 040 1 060 21605 START UP 2 20x20 Check List 070 2 20x25 3 25x20 loc 2 16x20 1 Make certain all construction debris is removed Hosen gis T t from unit interior 080 3 20x25 6 16x20 2 Check lubrication of fan and motor bearings a Note that bearings are shipped completely 090 3 20x25 8 16x20 full of grea
15. HC e S B P Lp Used on 39B 070 120 Used on 39B 070 120 070 110 120 B 11 C 8 18 Pie a TI H El ss f Ip Used on 39B 070 120 Used on 39B 070 120 070 110 120 BD B 12 HEF Shipped Shipped Ha Assembled 73 5 1 rue Cp C ps Used on 39B 070 120 070 110 Used on 39B 070 120 070 110 PD BD B 13 ag Shipped Assembled Used on 39B 070 120 070 110 Used on 39B 070 120 070 110 120 BD BD PD EN ji CN B 14 Lc HF Shipped Assembled roues Used on 39B 070 120 070 110 Used on 39B 070 120 070 110 100 PO BD BD PD BD d B 15 S 4 S E bp Se Jp I JE i Cp Used on 39B 070 120 070 110 120 Used on 39B 070 120 070 110 120 7 BD PD BD B 16 Shipped B 23 Shipped Assembled m Assembled Ie Usedon39B 070 120 070 120 Used on 39B 070120 070 110 120 LEGEND BD Bypass Duct LF Low Velocity Filter Section C O Cooling Coil Section Only P Base Separate Crates or Skids Fan Section PD Preheat Duct Extension FB Face amp Bypass Damper Section PH Preheat Coil Section fre A zz Loca for Shipping only on one Ski HF High Velocity Filter Section PS Plenum Section E tion pping y Skid NOTE Combination mixing box and filter assembly MB not shown is shipped separately Table 3 39B Type D Unit Arrangements Vertical Base unit and accessories on 39BA sizes 040 thru 060
16. and 2b under Unit Suspension and Mounting EPS E OUTDOOR UNITS Not recommended for 4 Caulk all joints with nonhardening material standard units unless following precautions are such as butyl rubber or silicone rubber to pre taken into consideration Consult your local vent moisture infiltration Carrier representative for units specially factory 5 Install a field supplied rain shield over outside equipped for outdoor use air damper of combination mixing box and 1 Externally insulate all accessories that are not filter section factory insulated combination mixing box and filter section filter section and face and bypass damper section Fig 13 can be used as an alternate Obtain motor manufacturer s recommendation for a fan motor type suitable for outdoor use 7 Install a field supplied cover over damper link If outside temperature will be below dew point age to prevent ice and snow from interfering of air in unit at any time during operating with operation Damper motor must be suitable season insulate complete unit externally to for outdoor use prevent internal condensation Vapor seal and mp 8 If unit is to be subjected to freezing tempera weatherproof insulation be tures insulate condensate drain lines and locate Install a crowned waterproof cover on top of trap indoors to prevent freeze up unit to prevent water from collecting or leaking f 39B 39C into unit per Fig 12 A shed type c
17. ange 6 with three 1 4 20 x 1 2 in self tapping screws and flange 6 engagement holes Tighten all screws securely 2 Sizes 135 and 140 a Place one endpiece on one flange 8 of cooling coil section with fiber glass insulated side facing second flange 8 Fasten flange 10 to 8 as follows 1 Line up flange 10 and 8 Ensure air in take side of bypass duct is flush with edge of flange 9 2 Drill six engagement holes in flange 8 with a no 3 drill 3Fasten flange 10 to 8 with six 1 4 20 x 1 2 in self tapping screws Loosely fasten one end of top panel to flange 12 with nine 1 4 20 x 1 2 in self tapping screws and flange 12 engagement holes Place second endpiece on second flange 8 of cooling coil section with fiber glass insulated side facing first endpiece Loosely fasten remaining end of top panel with nine 1 420 1 2 in self tapping screws and flange 12 engagement holes Loosely fasten front panel to flanges 13 with five 1 4 20 x 1 2 in self tapping screws per end and flange 13 engagement holes 10 g Loosely fasten flange 14 to matching edge of top panel with seven 1 4 20 x 1 2 in self tapping screws and engagement holes along top panel edge h Fasten flange 10 of second endpiece as follows 1 Line up flange lOand 8 Ensure air intake side of bypass duct is flush with edge of flange 9 2 Drill six engagement holes in flange 8 with a no 3 drill 3 Fasten flange 10 to 8 with si
18. ase to fan section with hard ware from accessory drive package per Fig 24 Do not tighten until sheaves are aligned 1 Locate base adjusting slots in respect to fan shaft as shown 2 Place cardboard pattern on motor base 3 Check center to center distance between pattern and fan shaft with center to center distance marked on drive package carton Required center to center distance should be obtained with support angle bolts approximately centered in adjusting slots This will permit final adjustment for belt in stallation and proper tension 4 If center to center distance is too short adjust pivot point upward if too long adjust pivot point down ward Refer to Fig 25 sizes 040 thru 060 A pry bar may be used to support weight of motor 10 Secure two support angle bolts and loosen jackscrews 11 Adjust motor base after mounting motor as follows NOTE If center to center distance was not properly set before mounting motor adjust base height as follows for proper belt tension a Turn jackscrews until they contact motor base cradle b Block up motor under mounting angle nearest pivot points to support weight of motor Place lever pry bar or 2 x 4 for example under same area c Loosen two support angle bolts and adjust jackscrews until two support angle bolts are approximately centered in ad justing slots d Remove two pivot point bolts raise or lower pivot point to obtain correct cente
19. ble 1 1 2 Fasten Follow preceding steps 1 and 2 Remove fan section panels A and B Provide a cardboard walkway on fan section bottom to protect insulation Fasten flange 1 to 2 with seven 3 8 16 x 3 4 in hex head cap screws lockwashers and flange 2 weld nuts Fasten flanges 3 to 4 with five 3 8 16 x 3 4 in hex head screws lockwashers plain washers and hex nuts per two flanges riser panel9 to 10 with six 1 4 20 x 1 2 in self tapping screws and lip 10 engagement holes Tighten all screws securely Remove cardboard walkway from fan section and replace panels A and B UNITS 39BA BB SIZES 100 THRU 120 Arrange ment D except D 17 and D 18 Refer to Fig 4 and Table 3 1 Remove shipping skids and apply sealing compound to flanges on air discharge side of cooling coil section 2 Place air intake side of fan section on top of air discharge side of cooling coil section reheat coil section or bypass heat section 3 Fasten flange 1 to 2 with three 3 8 16 x 3 4 in hex head cap screws lockwashers per two flanges and flange 2 weld nuts 4 Fasten flanges 3 to 4 with one 3 8 16 x 3 4 in hex head cap screw lockwasher and hex nut per two flanges 5 Fasten comers 5 to 6 with one 3 8 16 x 3 4 in hex head cap screw lockwasher two plain washers and hex nut per two corners Corner holes are 11 16 in diameter 6 Tighten all screws securely Arrangements D 17 and D 18 1 Follow
20. d butt against fan section per Fig 5 b Drill seven engagement holes along flange 7 with a no 2 drill c Fasten filler panel to flange 7 with seven self tapping screws d Follow preceding steps 3a and 3b 5 Fasten flange 1 to 2 with five 3 8 16 x 3 4 in hex head cap screws lockwashers plain washers and hex nuts per two flanges 6 Tighten all screws securely Fig 4 Base Unit Assembly for 39BA BB100 120 Arrangement D 8 Arrangement D 18 NOTE Duct extension is shipped assembled to fan section 1 Remove filler panel from cooling coil section and discard 2 Fasten spray humidifier or preheat coil section with bypass when specified or plenum and face and bypass damper section to cooling coil section per Accessory Assembly 3 Remove shipping skid and apply sealing compound to flanges on air discharge side of cooling coil section 4 Place air intake side of fan section on top of air discharge side of cooling coil section 5 Fasten flanges 3 to 4 with seven 1 4 20 x 1 2 in self tapping screws and flange 4 engagement holes 6 Fasten flanges 5 to 6 with two 3 8 16 x 3 4 in hex head cap screws lockwashers plain washers and hex nuts per two flanges 7 Tighten all screws securely Accessory Assembly Refer to Tables 1 2 and 3 NOTE More holes may exist than indicated Use only those which line up BYPASS HEAT SECTION Arrangements D 31 and D 35 sizes 135 and 140 only Refer to Fig
21. drop on bearing support or let fan wheel twist or bind between sides of fan housing 23 5 Install new bearing and tighten bearing locking collar setscrews per Table 1 and Fig 26 6 Make certain fan wheel does not rub sides of fan housing after installing new bearings 7 Recoat fan shaft with a rust inhibitor 8 Replace sheave belts and belt guard FRONT PANEL SCREW DETAIL HEX HEAD SCREW S Fig 28 Removable Panels for Access to Fan Section Fan Shaft Removal 1 Remove fan shaft bearings per Fan Bearing Replacement 2 Refer to Fan Section Access and remove panels 3 Loosen fan wheel setscrews sizes 040 thru 060 or fan wheel clamps sizes 070 thru 140 4 Block up fan wheels within housings to prevent dropping when shaft is removed 5 Remove bearing plates and slide shaft from unit 6 Replace shaft in reverse order and replace any damaged internal insulation Refer to Fig 2 or Table 4 Fan Wheel Removal 6 1 Remove fan shaft bearings per Fan Bearing Replacement 2 Remove fan shaft per Fan Shaft Removal 3 Remove fan discharge ductwork 4 Remove cutoff plate per Fig 29 and remove fan wheel thru housing discharge 5 Replace any damaged internal insulation Fig 29 Fan Details Replace fan wheel in reverse order and note following a 100 thru 110 UNIT 39B 040 thru 060 070 thru 080 135 thru 140 When replacing fan wheels on unit sizes 070 th
22. e unit and accessories on 39BA sizes 040 thru 060 are shipped completely assembled ARRANGEMENT ASSEMBLED SHIPPED UNIT 18 Used 39B 135 140 BD Used on 39B 135 140 Not Am Available Used on 39B 130 140 BD N FR i BD 7 Used 39B 080 110 135 140 A BD A 22 LF PH lil Used on 39B 135 140 A 23 3p On MCN PD 2 Used 39B 070 140 080 110 120 130 135 140 LEGEND BD Bypass Duct HF High Velocity Filter Section PS Plenum Section CC Cooling Coil and Reheat LF Low Velocity Filter Section Coil Section Bas Pan L Separate Crates or Skids Fan Section PD Preheat Duct Extension Xp FB Face amp Bypass Damper Section PH Preheat Coil Section Location for Shipping only on one Skid NOTE Combination mixing box and filter assembly MB not shown is shipped separately Table 2 39B Type Unit Arrangements Horizontal Without Reheat Base unit and accessories on 39BA sizes 040 thru O60 are shipped completely assembled ARRANGEMENT ASSEMBLED SHIPPED ARRANGEMENT ASSEMBLED SHIPPED UNIT UNIT BD B 10 8 17 Shipped PIE Assembled wel
23. for flange 2 in step 5a 6 Fasten flange 5 to matching flange of applicable accessory or cooling coil section as follows a Fasten flange 5 sizes 070 thru 120 with three 3 8 16 x 3 4 in hex head cap screws and matching flange weld nuts b Fasten flange 5 to matching flange of appli cable accessory or cooling coil section preheat coil and cooling coil sections sizes 135 and 140 excluded with seven 3 8 16 x l in hex head cap screws and matching flange weld nuts c Fasten flange 5 to matching flange of pre heat coil section sizes 135 and 140 with seven 3 8 16 x l in hex head cap screws and hex nuts 14 d Fasten flange 5 to matching flange of cool ing coil section sizes 135 and 140 with seven 1 4 20 x 1 2 in self tapping screws and matching flange engagement holes Fasten flanges 2 to matching flanges of appli cable accessory or cooling coil section with three accessory or cooling coil section sizes 070 thru 120 five accessory or cooling coil section size 130 five accessory section sizes 135 and 140 or six cooling coil sec tion sizes 135 and 140 3 8 16 x 1 hex head cap screws and hex nuts per two flanges Tighten all screws securely Install filter blankoff panels evenly spaced in filter tracks when using high velocity filters in low velocity filter sections or combination mixing box and filter section to ensure uniform air distribution ATOMIZING SPRAY AND
24. ing coil section so excess water can be collected in condensate pan Remove factory installed accessories to do this and replace same Duct extension for accessories with bypass a Place one endpiece on each flange 3 of accessory with flanges 1 facing each other b Line up flanges 2 and 3 Drill one spray humidifier section or two preheat coil section engagement holes in flanges 3 with a no 3 drill c Fasten flanges 2 to 3 with one or two 1 4 20 x 1 2 in self tapping screws per two flanges d Fasten top panel to each flange 1 with two 1 4 20 x 1 2 in self tapping screws per end and both flange 1 engagement holes with and without Bypass Sizes 130 140 12 10 11 12 13 Fasten flange 4 to matching flange of applicable accessory except bypass heat section arranged for bypass cooling only with seven 1 4 20 x 1 2 in self tapping screws and locknuts Fasten flange 4 to matching flange of bypass heat section arranged for bypass cooling only as follows a Line up flange 4 with matching flange of accessory b Drill seven engagement holes in matching flange with a no 3 drill c Fasten flange 4 to matching flange with seven 1 4 20 x 1 2 in self tapping screws Fasten flange 5 to matching flange of appli cable accessory or cooling coil section with seven 3 8 16 x 3 4 in hex head cap screws and matching flange weld nuts Fasten flange 6 to matching flange of applicable
25. it has reached operating speed Excessive belt tension will reduce belt life and may cause bearing and shaft damage c To determine correct belt tension use the following formula for deflection forces shown in Table 8 64 For a belt span of 16 in small sheave of 5 in pitch diameter PD size 4L belts Deflection 1 From formula A 4in deflection needed 2 From Table 8 deflection force is be tween 1 7 8 and 2 5 8 1b nn Table 8 Fan Belt Deflection Force Ib BELT SMALL CROSS PD SECTION DEFLECTION FORCE LBS Std Super Notch Steel Cable Belts Belts Belts Belts RANGE Min Max Min Min Max Min Max 30 3612 24 2 3 3 3 4 A 38 48 24 3 3 4 3 4 3 4 5 0 7 0 24 3 3 5 3 4 5 34 4 43124 3 3 14 3 44 54 B 44 5613 4 1 4 54 44 5 7 58 8614 6 54 7 6 7 8 9 6 16 0 8 124 11 16 112 14 17 2 1 2 8 1 1 m 4L 3 0 3 5 1 2 t 3 7 5 0 1 2 PD Pitch Diameter 3 1f necessary increase or decrease the tension on belts until the deflection force is between 1 7 8 and 2 5 8 Ib 8 Secure locknut and check all bolts on motor base for secureness UNIT SIZES 070 THRU 140 1 Adjust motor base prior to mounting motor as follows a Make cardboard pattern showing distance from base of motor to shaft center per Fig 23 b Determine specified motor position and bolt motor b
26. ixing box and filter assembly MB not shown is shipped separately Table 4 Setscrew Torques SETSCREW SIZE TORQUE 22 5 30 5 in lb 1 4 52 7 71 3 in lb 5 16 103 7 140 3 in lb 3 8 168 3 227 7 in lb 7 16 22 1 29 9 ft lb 1 2 32 3 43 7 ft lb 5 8 78 2 105 8 ft lb 107 9 146 1 ft lb INSTALLATION General DO NOT 1 Remove protective caps from coil piping con nections until ready to connect piping 2 Bend or mutilate coil fins 3 Remove protective cover or grease from fan shaft until ready to install sheave 4 Lift by fan shaft extension or coil connections 5 Remove fan drive from boxes until ready to install to prevent loss of parts and installation information labeled on boxes 6 Lift face and bypass damper assembly without providing support under center of assembly 1 Use spacer bars per Fig 1 when rigging to avoid bending unit flanges 2 Make piping and duct connections in accord ance with standard practices Refer to Carrier System Design Manual for details 3 Leave sufficient clearances for a Condensate trap b Removal of fan shaft and coils c Service of filters fan motor bearings damper linkage and damper motors at least 30 inches d Piping to permit removal of fan guard Base Unit Assembly Fan and Coil Sections NOTES 1 Base unit and accessories on 39BA sizes 040 thru 060 arrangements A B and D are shipped completely assembled except for
27. l section sizes 135 and 140 excluded with seven 3 8 16 x 1 in hex head cap screws per flange and matching flange weld nuts 13 10 11 12 13 Fasten flange 2 to matching flange of preheat coil section sizes 135 and 140 as follows a Line up flange 2 with matching flange of preheat coil section b Follow preceding steps 3band3c sub stitute flange 2 for flange 1 in step 3c Fasten flange 3 to matching flange of applicable accessory or cooling coil section preheat coil and cooling coil sections sizes 135 and 140 excluded with seven 3 8 16 x l in hex head cap screws and matching flange weld nuts Fasten flange 3 to matching flange of preheat coil section sizes 135 and 140 with seven 3 8 16 x 1 hex head cap screws and hex nuts Fasten flange 3 to matching flange of cooling coil section sizes 135 and 140 with seven 1 4 20 x 1 2 in self tapping screws and match ing flange engagement holes Fasten flanges 4 to matching flanges of appli cable accessory bypass duct excluded with two 1 4 20 x 1 2 in self tapping screws and locknuts per flange Fasten flange 4 to matching flanges of accessory bypass duct with two 1 4 20 x 1 2 in self tapping screws and matching flange engagement holes Fasten flanges 5 to matching flanges of appli cable accessory or cooling coil section with five accessory or cooling coil section size 130 five accessory section sizes 135 and
28. on of material on wheel mate tions for operating limits rial accumulation should be scraped off 22 SERVICE Coil Removal 1 Disconnect piping 2 Remove coil cover panel 3 Remove air baffle from both ends of coil on leaving air side 4 Remove and discard coil shipping hold down bolts from both ends of coil 5 Slide coil out of unit Handle cooling coils with coil face vertical Handle heating coils with coil face vertical or horizontal Lift coils from four suspension points at corners as close to tube sheets as possible per Fig 27 6 Replace in reverse order rm occa LE ie A ue Cage MES CEE Ca AC LAS QUA Fig 27 Handling Coil with Face Vertical Fan Section Access All fan section sides front and top panels may be removed The panels to be removed for fan access will depend on unit location and the amount of access required Refer to Fig 28 After removing panels store them properly to avoid damage to insulation Before entering fan section protect insulation by placing cardboard or boards on bottom of fan section to serve as a walkway Fan Shaft Bearing Replacement Remove belt guard belts and sheave 2 Loosen bearing locking collar setscrews 3 Remove bearing hold down bolts 4 Remove bearing and observe the following precautions a Make certain fan shaft surface is clean between bearing and end of shaft b Block up fan shaft Do not let fan shaft
29. over 9 For coil freeze up protection refer to 3 Operation and Maintenance Book Piping Coil connections are labeled on unit GENERAL 1 Pipe unit so that vibration is not transmitted to or from unit 2 Allow sufficient clearance for unit piping connections so that piping will not prevent removal of fan belt guard 3 All piping must follow standard piping tech niques Refer to Carrier System Design Manual for details Fig 12 Crowned Type Protection Cover NG CO Field Supplied Refrigerant Distributor Nozzles 1 Check refrigerant distributor nozzle against design load and note following a Nozzles installed are for minimum rec ommended coil loading for proper refrig erant distribution and oil return For heavier loads proper nozzles must be substituted b Nozzle orifice size is stamped on nozzle Refer to Table5 for factory installed standard coil nozzles Refer to Table 6 for nozzle orifice capacities Field Supplied Table 5 Factory Installed Refrigerant Distributor Nozzles Standard Direct Expansion Coils Size Coils In Unit Qty Size 4 And Nozzles In Coil 1 G2 1 63 1 64 1 C4 1 5 2 C5 2 C6 2 C5 2 C6 2 A10 2 C5 2 C5 2 C6 2 C5 2 A10 15 Table 6 Refrigerant Distributor Nozzle Orifice Capacities Tons of Refrigeration NOZZLE EVAPORATOR TEMPERATURE ORIFICE 12 R 500 NUMBER 20 2 2 01 1 7 1 9 1 6 2172 25
30. preceding steps 1 thru 5 2 Fasten spray humidifier or preheat coil section with bypass when supplied to cooling coil section per accessory assembly 3 Fasten flange 7 to fan section side A with three 1 4 20 x 1 2 in self tapping screws and side A engagement holes 4 Line up flanges 8 and 9 and drill two engage ment holes in each flange 9 with a no 3 drill 5 Fasten flanges 8 to 9 with two 1 4 20 x 1 2 in self tapping screws per two flanges 6 Tighten all screws securely UNITS 39BA BB SIZES 130 THRU 140 AND 39BC SIZES 135 AND 140 Arrangement D ex cept D 18 Refer to Fig 5 and Table 3 NOTE On arrangements D 31 and 35 sizes 135 and 140 first fasten bypass heat section to cooling coil section per Accessory Assembly then proceed with following steps 1 Remove shipping skid s and apply sealing compound to flanges on air discharge side of cooling coil section 2 Place air intake side of fan section on top of air discharge side of cooling coil section reheat coil section or bypass heat section 3 Cooling coil section a Line up side A of fan section with filler panel and drill eight engagement holes along bottom edge of side A with a no 3 drill b Fasten filler panel to side A with eight 1 4 20 x 1 2 in self tapping screws 4 Bypass heat section or reheat coil section a Place filler panel removed from cooling coil section per Accessory Assembly along flange 7 of accessory section an
31. r to center distance Replace pivot point bolts e Refer to preceding step 9 for final adjust ment of belt tension f Secure two support angle bolts and two pivot point bolts and loosen jackscrews Fig 24 Location of Adjusting Slots Unit Sizes 070 thru 140 2 Place motor on motor base with maximum shaft overhang and install hardware from accessory drive package tighten securely Posi tion small frame motors up to 145 T per Fig 25 Note that hold down bolts for small frame motors will be smaller in diameter than mounting angle bolts supplied in motor base Fig 25 3 Locate mounting angles so motor shaft will line up with center of cutout in motor base Make certain mounting angles are perpendic ular to support angles and secure mounting angle and motor hold down bolts shown in Fig 25 4 Remove protective cover and clean grease from fan shaft with solvent 5 Apply a light coat of grease or white lead to fan shaft 6 Install fan and motor sheaves with correct angular and parallel alignment per Fig 22 7 Correct alignment by repositioning motor base 8 Secure motor base hold down bolts 9 Loosen two support angle bolts per Fig 24 and adjust belt tension by turning jackscrews Fig 2b Small Frame Motor Mounting Follow step 7 of Motor and Drive unit Such as 143T and 145T 21 Belt Guard UNIT SIZES 040 THRU 120 1 Position belt guard and drill three engagement holes sizes 040 thru 0
32. require no lubrication Carefully lubricate all other bolt threads with oil Do not oil fan shaft b Tighten clamps evenly 5 Exercise care in handling all equipment 6 If unit is to be stored for more than weeks prior to installation observe the following precautions a Choose storage site that is kvel and sturdy to prevent undue stress or permane t dis tortion to fan Do not subject bearings to direct sunlight or temperatures in excess of 180 F E 1 NE Carrier Corporation 1971 Form 39B 1S ASSEMBLED ARRANGEMENT UNIT Table 1 39B Type A Unit Arrangements Horizontal With Reheat Base unit and accessories on 39BA sizes 040 thru 060 are shipped completely assembled SHIPPED E ul P Used on 39B 00140 120 140 A 11 Not Available Used on 39B 070 120 130 140 ES EN P P Used on 39B __ 070 140 080 110 120 130 135 140 I At BJ EEG cc e Used on 39B 080 110 120 140 Not oun R e Available Used on 39B 080 110 130 140 Be s 7 Used 39B 070 140 120 130 135 140 BON 16 LA On P P P Used on 39B 070 140 120 130 135 140 HF A 17 BON ZZZ Not Available P Used on 39B 070 120 120 130 140 NT Table 1 39B Type A Unit Arrangements Horizontal With Reheat cont Bas
33. ru 140 ensure balancing reference marks on wheel normally a red line and clamps line up Adjust fan clamp torque per Fig 2 Adjust cutout clearance per Table 10 For minor adjustment loosen screw holding cutoff clip to fan housing and adjust cutoff plate For further adjustment loosen bear ings and shift fan shaft Table 10 39B Cutoff Clearance in FAN SECTION 090 120 130 For replacement items use Carrier Specified Parts Manufacturer reserves the right to change any product specifications without notice CARRIER AIR CONDITIONING COMPANY SYRACUSE NEW YORK Tab 9 Form 9 151 Supersedes 39BA041005 Printed in U S A 9 71 Codes C and ME Catalog No 533 902
34. se for corrosion protection and 3 16x20 may run warm temporarily on start up until 100 8 20x20 the excess grease has discharged As a 105 ee precaution cycle unit on and off at one and 14 16x20 minute intervals for five minutes NODE LER b Sleeve bearing motors are normally shipped 120 4 16x25 14 16x25 with oil reservoir drained Fill reservoir 136 38 20 20 24 20 20 before starting motor 135 and 140 36 20 25 24 20 25 Check secureness of bearing locking collars per Table 4 Refer to Fig 26 for eccentric type 8 Vibration Check 4 Recheck sheave alignment and belt tension NOTE After final assembly unit is checked to 5 Make certain fan shaft turns freely and fan ensure vibration level is within tolerance wheels do not rub in housings If excessive vibration is noted check following 6 Make certain filters used during building con a Drive alignment struction are replaced with new ones Refer to b Mismatched belts Table 9 c Wheel or sheaves loose on shaft 7 Check direction of rotation and fan speed pec of a Arrow on fan drive side indicates correct i ee d f Motor out of balance direction of rotation Excessive fan speed may g Sheaves eccentric or out of balance Q result in condensate carry over from cooling h Vibration isolators improperly adjusted coil and or fan motor overload Refer to i Worn or corroded wheel replace if bad 39B 39C Operation and Maintenance Instruc j Accumulati
35. t of unit Lift coils from suspension points at four corners as close to tube sheets as possible Never lift from center Handle cooling coils with coil face vertical 5 Reverse coil per Fig 20 6 Reverse steps 1 thru 4 to reinstall Cooling and hot water heating coils must be reinstalled so refrigerant or chilled water supply enters on air leaving face of coil and returns on air entering face Steam heating coils must be installed with upper connection for supply and lower for return Supply connection has a raised letter S on return bend type steam coils Supply connection is larger than return on nonfreeze type steam coils Fig 20 Coil Reversing Duct Connections Make connections per accepted design practices Refer to Carrier System Design Manual for details 19 Motor and Drive GENERAL 1 Excessive tipping will cause oil loss in sleeve bearing motors Follow motor manufacturer s recommendations 2 Check job prints to determine correct motor mounting position 3 Drive package numbers are marked on drive package and label on drive end of fan section 4 Required center to center distance C D be tween fan and motor shafts is marked on fan drive package 5 Refer to Table 7 for motor base used on unit sizes 070 thru 140 A single bracket is used universally for unit sizes 040 thru 060 Motors larger than 50 hp must not be mounted on unit Use field provided floor mounted base under unit and motor
36. ts per two flanges 4 Duct extension for accessories with bypass a Preheat coil section only Remove two size 070 or three sizes 080 thru 120 1 4 20 x l in hex head cap screws plain washers and hex nuts from each flange 6 and 7 Save fasteners for following steps b and c Place endpiece having largest holes on side C on flange 6 of accessory Face fiber glass insulated side toward flange 7 of accessory Fasten surface A to flange6 of spray humidifier section with one 1 4 20 x 1 2 in self tapping screw and flange 6 engagement hole For preheat coil section use two of each type of fastener saved from preceding step a Place second endpiece on flange 7 of accessory Face fiber glass insulated side toward fiber glass insulated side of first endpiece Fasten surface A to flange 7 per preceding step b Fasten one angle D to each side E of both endpieces with two size 070 or three sizes 080 thru 120 1 4 20 x 1 2 in self tapping screws per angle and side E engage ment holes Fasten top panel to top of each endpiece with one spray humidifier section or two preheat coil section 1 4 20 x 1 2 in self tapping screw s per end and engagement hole s in top of each endpiece 9x 6 7 Fasten flanges 1 thru 5 of face and bypass damper section preheat coil or spray humidifier section with bypass as follows a Arrangements A and B Fasten flange 1 to matching flange of applicable
37. x 1 4 20 x 1 2 in self tapping screws i Fasten flange 11 to matching surface of cooling coil section as follows 1 Line up flange 11 and matching surface 2 Drill ten engagement holes in matching surface with a no 2 drill 3 Fasten flange 11 to matching surface with ten 1 4 20 1 24n self tapping Screws j Tighten all screws securely FACE AND BYPASS DAMPER SECTION PRE HEAT COIL SECTION AND OR SPRAY HUMIDIFIER SECTION WITH AND WITHOUT BYPASS Sizes 070 thru 120 Refer to Fig 8 1 Remove shipping crate s and apply sealing tape to flanges on air discharge side of spray humidifier section only 2 Face air discharge side of accessory ies toward air intake side of cooling coil section NOTE Spray humidifier section must be adjacent to cooling coil section so excess water can be collected in condensate pan Remove factory installed accessories to do this and replace same C Fig 8 Assembly of Accessory Face and Bypass Damper Section Preheat Coil Section and or Spray Humidifier Section with and without Bypass Sizes 070 120 3 Fasten flanges 2 thru 5 of preheat coil or spray humidifier section without bypass to matching flanges of cooling coil section with the following a Fasten flanges 2 and 3 with three 3 8 16 x 3 4 in hex head cap screws per two flanges and matching flange weld nuts Fasten flanges 4 and 5 with three 3 8 16 x 3 4 in hex head cap screws and hex nu
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