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Bryant 551C User's Manual

1. 758 110 OUTDOOR TEMP 889 100 89 100 195 38 OUTDOOR TEMP 105 41 ied 95 35 8 198 38 8 6211 9o 2521 29 105 41 8 8 85 18 95 35 x D 85 29 5 J 55 13 5 5 75 24 552 45 7 552 ET 55 18 g 55 13 a 8 45 7 S et B 483 70 i 483 270 B lw Bou w 2 414 260 414 250 E 5 5 5 S 2 2 i n 5 345 50 5 345 50 gt 276 40 276 40 40 50 60 70 80 90 40 50 60 70 80 90 a r SUCTION LINE TEMPERATURE F SUCTION LINE TEMPERATURE 4 10 16 21 2 32 4 10 16 21 2 32 wo SUCTION LINE TEMPERATURE C SUCTION LINE TEMPERATURE C 06140 C06142 Fig 50 Cooling Charging Chart Fig 52 Cooling Charging Chart Standard 551B 048 Standard 551B 072 COOLING MODE CHARGING CHART 3 TON 60HZ CAPPLICABLE ONLY WHEN COIL IS IN SUBCOOLING MODE 2 OUTDOOR FAN MUST BE OPERATING 140 130 120 PSIO g ADD CHARGE IF ABOVE CURVE 110 100 o SUCTION LINE PRESSURI LIQUID TEMPERATURE LEAVING CONDENSER DEG tn a lt in a gt a z 5
2. 6b 8 6 INON AplunH 8b 8 0 nn INON 01 ad loahed 2 OL 86 INON 29 di Ji vo zv ze9 sis ON SH 09 9 5 9 6 26 INON s di 61 vo ole zy ze9 818 H ais 0 9 osz 0 0 422 991 621 00600 0 9 012 092 eez gel 901 00800 suoi 059 ooz 901 Le 00 00 92 vo oes Us 809 SHA 90 0 9 Ol ooz 991 22 007900 029 01 INON ER 009 ozz 092 erz 991 621 00600 on 0 09 092 Soz gel 901 00800 009 091 ooz EET 901 ig o0vZ00 gz ro oes T 809 009 091 22 007900 009 06 051 v6 Ima 008 10 vaT v VON vi oov vi vi ALO vu viu xen un ene pu ZH Ud A l emoy HaivaHHO IeuluoN 3715 123NNOOSIG Aiddns JVaH 91819373 HOOGLNO gt 009 DTSS eBed POUPA Ser 13 48 ZL SL 92 Dm 3NON t S3A M B NON 92 80
3. AC 02 0 4 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1800 907 0 63 558 1006 0 80 708 1092 0 97 860 1169 114 1015 1239 1 32 1174 1900 945 0 72 638 1042 0 90 796 1126 1 08 956 1201 1 26 1119 1271 1 45 1285 2000 984 0 82 727 1078 1 00 892 1160 1 19 1060 1235 1 39 1230 1303 1 58 1403 2100 1024 0 93 823 1115 112 997 1195 1 32 1173 1268 1 52 1350 1335 1 72 1531 2200 1063 1 05 929 1152 1 25 1111 1230 1 46 1294 1302 1 67 1480 1368 1 88 1668 2300 1103 1 18 1044 1189 1 39 1234 1266 1 60 1425 1337 1 82 1618 1402 2 04 1814 2400 1143 1 32 1168 1227 1 54 1967 1302 1 76 1566 1371 1 99 1767 1435 222 1970 2500 1183 1 47 1803 1265 1 70 1510 1339 1 93 1717 1406 247 1926 2600 1224 1 63 1448 1303 1 87 1663 1375 2 12 1878 1442 2 36 2095 2700 1264 1 81 1604 1342 2 06 1828 1412 2 31 2051 2800 1305 1 99 1772 1381 2 26 2003 2900 1346 2 20 1951 3000 AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1800 1304 1 51 1337 1365 1 69 1503 1422 1 88 1674 1477 2 08 1848 1528 2 28 2025 1900 1335 1 64 1454 1395 1 83 1627 1452 2 03 1804 1506 2 23 1984 2000 1366 1 78 1580 1426 1 98 1760 1482 2 19 1943 1
4. AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 0 2 0 4 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 554 0 14 134 681 0 22 222 783 0 32 316 870 0 42 416 947 0 53 523 1000 583 0 16 163 707 0 26 257 808 0 36 358 894 0 47 465 971 0 58 578 1100 612 0 20 195 735 0 30 298 834 0 41 406 919 0 52 519 995 0 64 638 1200 643 0 23 233 762 0 35 344 860 0 46 459 944 0 58 579 1020 0 71 705 1300 674 0 28 276 791 0 40 395 887 0 52 517 970 0 65 645 1045 0 78 777 1400 706 0 33 324 820 0 45 451 914 0 59 582 997 0 72 717 1071 0 86 857 1500 738 0 38 379 849 0 52 515 942 0 66 653 1024 0 80 796 1097 0 95 942 EXTERNAL STATIC PRESSURE w MS 12 T4 1 6 Cg 8 20 Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 1017 0 64 635 1082 0 76 758 1143 0 88 876 1200 1 01 1004 1254 1 14 1136 1000 1041 0 70 696 1105 0 82 820 1166 0 95 948 1223 1 09 1081 1276 1 23 1219 1100 1065 0 77 763 1129 0 90 892 1189 1 03 1026 1245 1 17 1165 1299 1 32 1308 1200 1089 0 84 835 1153 0 98 971 1212 1 12 1111 1269 1 26 1256 1322 1 41 1404 1300 1114 0 92 915 1177 1 06 1056 1236 1 21 1202 1292 1 36 1 5 1346 1 52 1508 1400 1139 1 01 1000 1202 1 15 1149 1261 1 31 1301 1316 1 47 1457 1369 1 63 1618 1500 1164 1 10 1093 1227 1 25 1248 1285 1 41 1407 1341 1 58 1570 1394 1 75 1736 NOTES LEGEND 1 Bold cells
5. FREE FIELD ACCESSORY sell COOL RAT ENTHALPY SENSOR 620 e 1 5 an USED 194 LA 8 EF e x BLU FIELD SPLICE lt 4 FIELD SPLICE BRN 1 m SSS d lt BEEN NOT UstD lt 1 GRY ORG 12 vor sen LEGEND Potentiometer Defaults Settings NOTES ilati Power Exhaust Middle 1 620 ohm 1 watt 596 resistor should be removed only when using differential vri Ventilation Minimum Pos Fully Closed enthalpy or dry bulb LA Low Ambient Lockout Device d 2 If a separate field supplied 24 v transformer is used for the IAQ sensor power OAT Outdoor Air Temperature POT Potentiometer Enthalpy C Setting RAT Return Air Temperature supply it cannot have the secondary of the transformer grounded 3 For field installed remote minimum position POT remove black wire jumper between P and P1 and set control minimum position POT to the minimum position C06028 Fig 27 EconoMi er IV Wiring 26 Outdoor Enthalpy Changeover For enthalpy control accessory enthalpy sensor part number 57 078 is required Replace the standard outdoor dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting
6. LIQUID PRESSURE LEAVING CONDENSER PSIG C06146 Fig 56 Cooling Charging Chart 551B 072 with Optional Perfect Humidity Adaptive Dehumidification System To Use Cooling Charging Chart Standard Unit Take the outdoor ambient temperature and read the suction pressure gauge Refer to charts to determine what suction temperature should be If suction temperature is high add refrigerant If suction temperature is low carefully recover some of the charge Recheck the suction pressure as charge is adjusted Example Fig 49 Outdoor Temperature 75 F Suction Pressure 70 psig Suction Temperature should 48 F Suction temperature may vary 5 If a charging device is used temperature and pressure readings must be accomplished using the charging charts To Use Cooling Charging Charts Units With Perfect Humidity Adaptive Dehumidification System Refer to charts Fig 53 56 to determine the proper leaving condenser pressure and temperature Example Fig 53 Leaving Condenser Pressure 250 psig Leaving Condenser Temperature 105 F NOTE When using the charging charts it is important that only the subcooling reheat dehumidification coil liquid line solenoid valve be energized The subcooling reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging c
7. OUTDOOR AIR 51 SENSOR S2 THERMOSTAT DIPSWITCH SETTINGS OFF A B C D LEGEND Field Wiring NOTE Underlined letter indicates active thermostat output when configured for A C operation C06008 Fig 10 Low Voltage Connections With or Without Economizer or Two Position Damper Table 1 Physical Data 551B BASE UNIT 551B 036 048 060 072 NOMINAL CAPACITY nominal tons 3 4 5 6 OPERATING WEIGHT Ib Unit 435 445 465 540 Perfect Humidity Adaptive Dehumidification System 15 23 25 29 EconoMi er IV 50 50 50 50 Roof Curb 115 115 115 115 COMPRESSOR Scroll Quantity 1 1 1 1 Oil oz 42 53 50 60 REFRIGERANT TYPE R 22 Expansion Device Acutrol Metering Device Operating Charge Ib oz Standard Unit 5 8 10 2 10 0 12 8 Unit With Perfect Humidity Adaptive Dehumidification System 12 5 18 8 20 5 23 14 CONDENSER FAN Propeller Quantity Diameter in 1 22 1 22 1 22 1 22 Nominal Cfm 3500 3500 4100 4100 Motor Hp Rpm 1 8 825 1 8 825 1 4 1100 1 4 1100 Watts Input Total 180 180 320 320 CONDENSER COIL 3 8 in OD Enhanced Copper Tubes Aluminum Lanced Fins Rows Fins in 2 17 2 17 2 17 Total Face Area sq ft 14 6 16 5 16 5 21 3 EVAPORATOR COIL 3 8 in OD Enhanced Copper Tubes Aluminum Double Wavy Fins Standard Unit Rows Fins in 2 15 2 15 4 15 4 15 Total Face Area sq ft 5 5 5
8. 553027 331113 Wau 40 622 ALIAVYS c St Las I 2 2 M WONOD3 4 EICGURNUINUNESDUENG E NE 301516 SY3L3WITIIN NI 3UV E 1 NI SNOISNJMIG I 71 L 80 103135 SALON xu3MOd 200 29 11 5 5 i iTi 00 pve osol ss s e 123 i 8725 66S 551 ors 2208155 1 0 90 AlddNS 69 VIC 271 2 8 1 Ave 1 1 6 65 eet sos 97 5 929 98z 025 2204855 NIVUO 319543009 14 2 221 8 4 99v 4271 ses esp tor ens eu 9 LLZ 6 0908 155 9 1081 02 01314 eC VIO 8 53715 3715 LInQNOO E oz apo o UM evs en o 26 avs 241 2 8708 155 1 5 9 8 91 5 6 2 6 6 oll Lier 56 rsr gol 2795 vel 6 0r 06 2 22 os 261 sev 9208 155 100 320N3 5 Uu3MOd LISI VIG LOVE _ 107 S3OVXOVd 055399 Wh 93 581 9 5811 5871 oy 3587 sm 7567 ox 5817 lddns udMOd 01314 SE VIO 8 E 35n 404 0 034 S310H 353Hl H3NHO2 1H913M H3NNHO2 1HO13M YANYOO LHOTIM 3 d M 1H9I3M 1H913M 51715 01123 02 u3MOd 80110
9. 57 START UP CHECKLIST 61 SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical components Only trained and qualified service personnel should install repair or service air conditioning equipment Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters other operations should be performed by trained service personnel When working on air conditioning equipment observe precautions in the literature tags and labels attached to the unit and other safety precautions that may apply Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for unbrazing operations Have fire extinguishers available for all brazing operations Recognize safety information This is the safety alert symbol AS When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies a hazard which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight sugge
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11. van ma ADD UM auno EN H3IV3HHO JORNVH ANOD Wal TVNIWON JINn 3215 L93NNOOSIG Addns aH 91410373 4009 DTSS eBJed PONPA Ser 15 palel PUN ol uonnquisip J AGG 10 Jo uo peseq SI Aloedeo JeleeH 1 Jeyeelq HOVH JO esnd xx jsneuxe slqel 18 Bag 15 spnloullou slqel SIU pelsll x SALON peo Jolom 1oopino INJO lueunoleAO JOON YON pexoo1 VHT Ue 4 Joopul WI uoneJeBujeg pue HOVH Sduiy peo IInd v13 08 vL 02 3NON 4 1 8 21 221 3NON ve 29 t pes a ON loehed 9 02 3NO
12. oog van wd 4 900 vow vid 00 vid AID vid un ZH Hd A lenjoy vid 3215 aalvahdo VM ANOD Wal TVNINON 3216 LOANNOOSIG Alddns JvaH dooqlno uossaddnoo 002 qTSs ejeq jeoruoopg p AL 21 5518 6 djust Factory Installed Options Perfect Humidity Adaptive Dehumidification System Perfect Humidity system operation can be controlled by field installation of a Bryant approved humidistat See Fig 13 NOTE light commercial Thermidistat device Fig 14 be used instead of the humidistat if desired The Thermidistat device includes a thermostat and a humidistat The humidistat is normally used in applications where a temperature sensor is already provided C06358 Fig 13 Accessory Field Installed Humidistat C06359 Fig 14 Light Commercial Thermidistat Device To install the humidistat 1 Route humidistat cable through hole provided in unit control box 2 Some models may be equipped with a raceway built into the corner post on the left side of control box See Fig 12 This raceway provides the required clearance between high voltage and low voltage wiring For models without a raceway ensure to provide the NEC required clearanc
13. CHECK THAT RETURN INDOOR AIR FILTERS ARE CLEAN AND IN PLACE 6 VERIFY THAT UNIT INSTALLATION IS LEVEL 5 CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND SETSCREW o TIGHTNESS CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES OR SHARP METAL EDGES CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS START UP ELECTRICAL SUPPLY VOLTAGE L1 L2 L2 L3 1341 55 5 2 INDOOR 5 L2 L3 TEMPERATURES OUTDOOR AIR TEMPERATURE DB RETURN AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB WB PRESSURES Cooling Mode REFRIGERANT SUCTION PSIG F REFRIGERANT DISCHARGE PSIG F VERIFY THAT 3 PHASE FAN MOTOR AND BLOWER ARE ROTATING IN CORRECT DIRECTION IF THEY ARE NOT ROTATING IN CORRECT DIRECTION LOCKING COLLAR MUST BE RE TIGHTENED AFTER CORRECTING DIRECTION OF ROTATION VERIFY THAT 3 PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS GENERAL SET ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO MATCH JOB REQUIREMENTS IF EQUIPPED ADJUST INDOOR FAN PULLEY AS REQUIRED TO MEET APPLICATION AIRFLOW REQUIREMENTS INSURE PULLEYS ARE PROPERLY ALIGNED AND BELT TENSION HAS BEEN ADJUSTED PER INSTALLATION INSTRUCTIONS AFTER PULLEY ADJUSTMENTS 2007 Bryant Heating amp Cooling Systems 7310 W Morris St Indianapolis IN 46231 Printed in U
14. UNIT UNIT MAXIMUM MAXIMUM MAXIMUM 881 CONTINUOUS BHP OPERATING WATTS UNIT VOLTAGE AMP DRAW 208 230 67 036 Three 2 40 2120 460 3 0 575 3 0 208 230 67 048 Three 2 40 2120 460 3 0 575 3 0 208 230 8 6 060 Three 2 90 2615 460 3 9 575 3 9 208 230 8 6 072 Three 2 90 2615 460 3 9 575 3 9 LEGEND Bhp Brake Horsepower Extensive motor and electrical testing on these units ensures that the fu horsepower and watts range of the motors can be utilized with confidence Using the motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure Unit warranty will not be affected Table 12 Accessory FIOP Electric Heaters Static Pressure Drop in wg 551B 036 072 551C 024 060 CFM COMPONENT 600 900 1200 1400 1600 1800 2000 2200 2400 2600 1 Heater Module 0 03 0 05 0 07 0 09 0 09 0 10 0 11 0 11 0 12 0 13 2 Modules 014 0 15 0 16 0 16 0 16 0 17 0 17 0 17 0 18 0 18 Table 13 A EconoMi er IV and EconoMi er2 Static Pressure in wg 551B 036 072 and 551C 024 060 CFM COMPONENT 600 800 1000 1250 1500 1750 2000 2250 2500 2750 3000 Vertical EconoMi er IV 0 01 0 02 0 035 0 045 0 065 0 08 0 12 0 145 0 175 0 22 0 255 Horizontal EconoMi er IV 0 1 0 125 0 15 0 18 0 225 0 275 LEGEND Fa
15. 181 rus 901 90 25 08 Se s8 OPEIS 6869 orice 007100 9090 06 05 Se se gilegte 2 3NON oe L0L LOL 89 09 08 02 8 1809 2 69 911 86 200200 097 905 95 6 02 09 809 889 ecr 6 96 62 00gy00 LOLIOL 2 2 09 09 viS vS 08 99 008500 25 68 oorsse 17 2 9882 85 67 00 200 20 t 985 24 89 181 ON 22 2 og og 0 6z 09z 5869 orice 007100 L0L LOL 2 2 95282 3NON DT es LG 02 09 229 653 86676 96 62 009700 09 09 829 89 9t vit 08 99 008500 65 55 SP OV rivigge Hz s8z 85 67 00 200 oz oreg 601 281 62 92 lt 0 vOt v z 6869 Orie 007100 DA 12 12 92 92 suoi z 69 69 G 9V 09 09 2291667 86676 96 62 00gy00 GS 09 08 802 69 69 prise os Sb 82 819 08 99 008500 69 69 65 62 0 65 voce eie Hz s8z 89 6 00 200 oz oreg 601 281 69 69 og sz reeves 6865 orice 007100 69 69 94 94 02 02 008 10 vu vi VON vi oov vi vi ALO vu viu xen ere pus ZH Ud A jeulwon 3218 L93NNOOSIG 1V3H 01410373 HOOGLNO 3ONVH 3OVLIOA 29199 OIss jeq e rn op4 ALL 12
16. 5831113 318 504510 T3NVd SS322V 831113 OOOH 83 1WN0NO23 211 7 0 ISNVHXJ 83004 83 1 08023 3 999 8 5 6 2 7 5 73215 3UIM NO 9 103930 83004 803 1 80 8 113 123135 5 TANVd 55322 JJOSS3ydNoD aIv 3015110 S3HONI 21 3415 JNO S3HONI 9 MO1 34044 04 1102 835830802 71003 L 801 MYOMLING Ol 32NVUV112 HONI 1 3 21812313 HLIM SLINA 398 2510 1VINOZIWUOH NO S3HONI 0 8802 98150 LON N3HM 532 1805 31811518402 01 NOLIOS 34309 WAI 0112105180 30 53002 1 201 32 312 W WINIM 9 ANO gdn 3008 18055322 01 38 OL WHOMIORQ 30 NOLIO3UIQ MIAVUS 30 831832 58 NI JYV J NI 580158341071 153108 sell L 1102 E TINVd 55399 Y3ZIWON093 431114 0 81004 01108 53715 NOILD3NNOD 200 92921 9 1 100 PE 100 320NX 114405 YIMOd 79 VIO 2 12 127221 9 1 421 91 6 6 6 0902166 NIVUO 31VSN30NOD LdN vl v 1 127221 8 1 599 91 5 6 2 8702155 310 ONIWIM 1081802 01313 1221 VIG 0 ETETE 9US 6 2 16 9602155 310H 1404 9NIONVHO VIG v 3 61
17. 7202155 1NO NOONN 114415 83109 15 VIG 2 0 10 2 0 082 sf L ser S39VXOVd 4055392 HIM 981 ET 3104 114405 83104 01313 SE vid 8 1 V ISN 0 038 5310 3S3Hl 1HOI3M 838802 1HOTIM 838802 1H9I3M YINYOI 1HOTIM YINYOD 1H913 3 d M 9 NO23 183A U3 IWONO23 LINN 7015 5518 5 Make Electrical Connections 4 WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result personal injury or death Unit cabinet must have an uninterrupted unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur This ground may consist of electrical wire connected to unit ground lug in control compartment or conduit approved for electrical ground when installed in accordance with NEC National Electrical Code ANSI NFPA National Fire Protection Association latest edition and local electrical codes Do not use gas piping as an electrical ground Field Power Supply All units except 208 230 v units are factory wired for the voltage shown on the nameplate If the 208 230 v unit is to be connected to a 208 v power supply the transformer must be rewired by disconnecting the black wire from the 230 v 1 4 in terminal on the transformer and connecting it to the 200 v 1 4 terminal from the transformer Refer to unit label diagram for additional information Pigtails are pro
18. 914 1371 DETAIL A DUCT END SEE DETAIL PLACE UNIT ON CURB AS CLOSE TO DUCT END AS POSSIBLE NOTES 1 2 3 A Place unit curb as close as possible to the duct end Dimension in Hook rigging shackles through holes in base rail as shown in detail A Holes in base rails are centered around the unit center of gravity Use wooden top skid when rigging to prevent rigging straps from damaging unit is in millimeters Weights include base unit without economizer See Table 1 for unit operating weights with accessory economizer Weights include base unit without the Perfect Humidity adaptive dehumidification system See Table 1 for unit operating weights with the Perfect Humidity SES 06111 Fig 6 Rigging Details OPERATING DIMENSIONS UN WEIGHT kg 024 435 197 73 69 1872 35 50 902 33 31 847 036 445 202 73 69 1872 35 50 902 33 31 847 048 465 211 73 69 1872 35 50 902 33 31 847 060 520 236 73 69 1872 35 50 902 41 31 1050 UNIT OPERATING DIMENSIONS 551B WEIGHT kg 036 530 240 73 69 1872 35 50 902 33 31 847 048 540 245 73 69 1872 35 50 902 33 31 847 060 560 254 73 69 1872 35 50 902 33 31 847 072 635 288 73 69 1872 35 50 902 41 31 1050 CONTROL BOX ACCESS PANEL INDOOR FAN MOTOR BLOWER
19. Low refrigerant charge Check for leaks repair and recharge Compressor valves leaking Replace compressor Restriction in liquid tube Remove restriction Excessive Suction Pressure High heat load Check for source and eliminate Compressor valves leaking Replace compressor Refrigerant overcharged Recover excess refrigerant Suction Pressure Too Low Dirty air filter Replace filter Low refrigerant charge Check for leaks repair and recharge Metering device or low side restricted Remove source of restriction Insufficient evaporator airflow Increase air quantity Check filter and replace if neces sary Temperature too low in conditioned area Reset thermostat Outdoor ambient below 25 F Install low ambient kit Evaporator Fan Will Not Shut Off Time off delay not finished Wait for 30 second off delay 58 Table 36 Perfect Humidity Adaptive Dehumidification System Subcooling Mode Service Analysis PROBLEM CAUSE REMEDY Subcooling Mode Liquid Reheat No power to control transformer from Check power source and evaporator fan relay Ensure all Will Not Energize evaporator fan motor wire connections are tight No power from control transformer to liquid line 1 Fuse open check fuse Ensure continuity of wiring solenoid valve 2 Low pressure switch open Cycle unit off and all
20. Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier If a plenum return is used on a vertical unit the return should be ducted through the roof deck to comply with applicable fire codes A minimum clearance is not required around ductwork Cabinet return air static pressure a negative condition shall not exceed 0 35 in wg with economizer or 0 45 in wg without economizer Step 3 Install External Trap for Condensate Drain Condensate drain connections are located on the bottom and side of the unit Unit discharge connections do not determine the use of drain connections either drain connection can be used with vertical or horizontal applications When using the standard side drain connection ensure the plug Red in the alternate bottom connection is tight before installing the unit To use the bottom drain connection for a roof curb installation relocate the factory installed plug Red from the bottom connection to the side connection The center drain plug looks like a star connection however it can be removed with 1 2 socket drive extension See Fig 4 The piping for the condensate drain and external trap can be completed after the unit is in place units must have an external trap for condensate drainage Install a trap 4 in deep and protect against freeze up If drain line is installed downstream from the external trap pitch the line away from the unit at 1 i
21. Fan Performance 551C 072 Horizontal Discharge Units Standard Motor Belt Drive 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 1300 to 1685 rpm All other rpms require field supplied drive EXTERNAL STATIC PRESSURE in wg ME 02 0 4 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1800 822 0 51 455 927 0 66 589 1018 0 82 728 1100 0 98 873 1174 1 15 1024 1900 855 0 59 520 957 0 74 659 1046 0 91 805 1127 1 08 956 1200 1 25 1113 2000 889 0 66 591 988 0 83 737 1075 1 00 888 1154 1 18 1045 1226 1 36 1208 2100 923 0 75 668 1019 0 92 821 1104 1 10 979 1182 1 29 1142 1253 1 48 1310 2200 957 0 85 753 1051 1 03 912 1134 1 21 1077 1210 1 40 1245 1280 1 60 1419 2300 992 0 95 845 1083 114 1011 1164 1 33 1182 1239 1 53 1357 1308 1 73 1537 2400 1026 1 06 945 1115 1 26 1118 1195 1 46 1295 1268 1 66 1476 1336 1 87 1662 2500 1061 119 1053 1148 1 39 1233 1226 1 59 1416 1297 1 81 1604 1364 2 02 1796 2600 1097 1 32 1169 1181 1 53 1356 1257 1 74 1546 1327 1 96 1740 1393 2 18 1938 2700 1132 1 46 1294 1214 1 67 1487 1289 1 90 1684 1358 2 12 1885 1422 2 35 2089 2800 1168 1
22. gt CHARGE 50 100 150 200 250 300 350 400 LIQUID PRESSURE LEAVING CONDENSER PSIG 10 16 21 SUCTION LINE TEMPERATURE C 06141 C06143 Fig 51 Cooling Charging Chart Fig 53 Cooling Charging Chart 551B 036 with Standard 551B 060 Optional Perfect Humidity Adaptive Dehumidification System 53 5518 COOLING CHARGING 4 60HZ CAPPLICABLE ONLY WHEN IS IN SUBCOOLING MODE 2 OUTDOOR FAN MUST BE OPERATING 140 130 120 ADD CHARGE IF ABOVE CURVE 110 100 LIQUID TEMPERATURE LEAVING CONDENSER DEG F REDUCE CHARGE IF BELOW CURVE 50 100 150 200 250 300 350 400 LIQUID PRESSURE LEAVING CONDENSER PSIG C06144 Fig 54 Cooling Charging Chart 551B 048 with Optional Perfect Humidity Adaptive Dehumidification System NOTE When using the charging charts it is important that only the subcooling reheat dehumidification coil liquid line solenoid valve be energized The subcooling reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed The charts reference a liquid pressure
23. the unit makes more noise and does not provide cooling 48 Cooling Set space thermostat to the OFF position Set the system selector switch at COOL position and the fan switch at AUTO position Adjust the thermostat to a setting below room temperature The compressor starts when contactor closes Check cooling effects at a setting below room temperature Check the unit charge Refer to Refrigerant Charge section Reset the thermostat at a position above room temperature The compressor will shut off TO SHUT OFF UNIT Set the system selector switch at OFF position Resetting the thermostat at a position above room temperature shuts off the unit temporarily until the space temperature exceeds the thermostat setting Units are equipped with a Cycle LOC protection device The unit shuts down on any safety trip and remains off an indicator light on the thermostat comes on Check the reason for the safety trip Compressor restart is accomplished by manual reset at the thermostat by turning the selector switch to OFF position and then to ON position Heating To start unit turn on main power supply Set system selector switch at HEAT position and set thermostat at a setting above room temperature Set fan at AUTO position First stage of thermostat energizes the first stage electric heater elements second stage energizes second stage electric heater elements if installed Check heating effects at air supply grille s
24. 08 59 00 9 92 96 Wee ds ON 6 L ve ve Sv St 256 296 881 6 91 Oviee 100 681 6 ve ve Sv 97 256 296 vid x dOOlN VOW vid leny 1000 via ALO viu ALO 131100 2 3715 Wal TVNINON LINN LOANNOOSIG WAH OIHIO31 HOOGLnO 3 HOSS3HdWO2 3O5NVH SDVLIOA 002 gTSs ejeq PLDI AL 19 m vi 02 vt 90 05 FZ 259 819 S3A 94 zi SL zz re 90 05 269 819 1oehed Z ez 90 05 EZ 259 819 SHA e 2 21 SL 90 05 LZ 269 819 Sh Quse ats v9 SL 90 05 EZ 269 819 SJA a 9 LL SL m oz 90 05 269 819 96 vez 600 800 96 242 Liz 800 800 96 92 0 082 891 600 T x 1 m a 500 so 29 6 808 vl 96 02 281 22 lt lt 900 96 02 281 i v6 8 81 vez 600 800 v6 96 Ov 886 442 Liz 800 800 v6 62 0 egz 991 600 re 28 sa a ve 80 29 6 808 vl ON v6 EET 24 lt lt 900 6 SL
25. Bhp Brake Horsepower 2 Maximum continuous bhp is 2 40 Watts Input Watts to Motor 3 See general fan performance notes Motor drive range 1035 to 1460 rpm All other rpms require field supplied drive 45 5518 Table 31 Performance 551 060 551 060 Horizontal Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AES 02 04 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1500 724 0 33 295 837 0 45 402 937 0 59 524 1028 0 74 660 1111 0 91 808 1600 757 0 39 343 866 0 51 455 962 0 65 580 1050 0 81 719 1132 0 98 870 1700 790 0 45 398 894 0 58 514 988 0 72 643 1074 0 88 784 1154 1 06 938 1800 823 0 52 458 924 0 65 579 1015 0 80 712 1099 0 96 857 1177 1 14 1013 1900 857 0 59 525 955 0 73 650 1043 0 89 787 1125 1 05 936 1201 1 23 1096 2000 892 0 67 599 986 0 82 729 1072 0 98 870 1151 1 15 1022 1226 1 33 1185 2100 927 0 77 680 1017 0 92 815 1101 1 08 960 1178 1 26 1116 1251 1 44 1283 2200 962 0 87 769 1050 1 02 909 1131 1 19 1059 1206 1 37 1218 1277 1 56 1389 2300 997 0 97 865 1082 1 14 1010 1161 1 31 1165 1235 1 50 1329 1304 1 69 1503 2400 1033 1 09 970 1115 1 26
26. HR Heater Relay Factory Wiring LPS Low Pressure Switch LSV Liquid Solenoid Valve Field Control Wiring LTLO Low Temperature Lockout Field Power Wiring Field Splice 551B C C06128 Fig 15 Typical Perfect Humidity Adaptive Dehumidification System Humidistat Wiring 208 230 V Unit Shown TSIAT WIRES LEGEND Circuit Breaker Light Commercial Thermidistat Device Liquid Line Solenoid Valve Low Temperature Lockout CB LCT LLSV LTLO ROOF TOP UNIT RED 24V _ PINK FROM PERFECT HUMIDITY SYSTEM LLSV PERFECT HUMIDITY SYSTEM C06360 Fig 16 Typical Rooftop Unit with Perfect Humidity Adaptive Dehumidification System with Thermidistat Device OUTDOOR AIR OPENING PANEL 3 SCREWS SIDE MANUAL OUTDOOR AIR ADJUSTMENT SCREWS POSITION SETTING DAMPER SCALE BLADE C06130 Fig 17 Damper Panel with Manual Outdoor Air Damper Installed 23 HOOD TOP SCREWS HIDDEN SCREWS SCREEN HOLDERS HOOD SIDES AND TOP ASSEMBLED C06013 Fig 18 Outdoor Air Hood Details 5518 Optional EconoMi er IV SCREW HOPS See Fig 21 for EconoMi er IV component locations NOTE These instructions are for installing the optional HOOD EconoMi er IV only Refer to the accessory EconoMi er IV ins
27. Line up the point on the graph with the left side of the chart to determine that the range configuration for the CO2 sensor should be 1800 ppm EconoMi er IV controller will output the 6 7 volts from the CO2 sensor to the actuator when the CO concentration in the space is at 1100 ppm The DCV set point may be left at 2 volts since the sensor voltage will be ignored by the EconoMi er IV controller until it rises above the 3 6 volt setting of the minimum position potentiometer Once the fully occupied damper position has been determined set the maximum damper demand control ventilation potentiometer to this position Do not set to the maximum position as this can result in over ventilation to the space and potential high humidity levels Sensor Configuration The sensor has preset standard voltage settings that can be selected anytime after the sensor is powered up See Table 7 06038 Fig 37 IV Control 2 SENSOR MAX RANGE SETTING 6000 amp 5000 x 2 4000 lt 800 ppm 5 e 900 ppm 3000 g 1000 ppm 2 1100 ppm 2000 4 lu 2 2 1000 c 0 T T T T T 2 3 4 5 6 7 8 DAMPER VOLTAGE FOR MAX VENTILATION RATE C06039 Fig 38 Sensor Maximum Range Setting Use setting 1 or 2 for Bryant equipment See Table 7 1 Pr
28. NOTES LEGEND 2 Maximum continuous bhp is 1 20 3 See general fan performance notes 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 770 to 1185 rpm All other rpms require field supplied drive Table 18 Fan Performance 551B 048 551C 048 Vertical Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg 02 0 4 0 6 0 8 1 0 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 666 0 25 252 778 0 36 361 873 0 48 476 956 0 60 594 1031 0 72 718 1300 701 0 30 300 809 0 42 418 902 0 54 540 983 0 67 665 1057 0 80 796 1400 737 0 36 355 842 0 48 481 932 0 61 610 1012 0 75 744 1085 0 89 881 1500 774 0 42 417 875 0 55 551 962 0 69 689 1041 0 83 830 1112 0 98 974 1600 811 0 49 487 909 0 63 629 994 0 78 774 1071 0 93 923 1141 1 08 1076 1700 849 0 57 565 943 0 72 715 1026 0 87 869 1101 1 08 1025 1170 1 19 1185 1800 887 0 65 651 978 0 81 810 1059 0 98 972 1133 1 14 1136 1200 1 31 1304 1900 926 0 75 746 1014 0 92 914 1092 1 09 1084 1164 1 26 1257 1231 1 44 1432 2000 965 0 86 852 1050 1 03 1028 1127 1 21 1206 1197 1 39 1387 1262 1 58 1570 EXTERNAL STATIC
29. SS 48 Ob vez 600 800 096 097 28 26 Sor 242 Liz 800 800 28 Sc 08 042 891 600 a z ae m ae 9z 80 29 6 808 vl 28 m vit 24 lt lt 900 98 dig v8 80r 600 800 v8 OF 846 442 Liz 800 800 98 22 etz 891 600 n F EE FT a ane 9z so 29 6 808 vl ON v8 ZL lt lt 900 98 261 261 18 182 001 06 76 758 89 299 1661 500 700 261 1261 22159 08 04 FLL 1 69 661 891 00 700 dai 261 1261 85 59 02 109 29 9 95 996 58 291 01 S00 uoi 5 261 1261 68 0 lt 5 21 6521612 96 62 00 52 i ect vt k Hee 48 S34 090 261 1261 96 96 9961996 991 91 89 6 200 261 1261 96 96 Or 9796 1996 SH 181 1181 28 2 06 08 L 68 282 859 255 552 66 lt 00 500 281281 29 69 08 04 199 661 891 00 200 281281 69 29 09 09 S S L1S 996 58 291 01 S00 281 1181 Sp 98 lt 21612 96 62 00 92 t eet yag 58 ON 281 1181 06 06 6 9061906 991 91 8 lt 6 200 281 281 06 06 6 9061906 gestae 621 1641 98 9 001 06 616 18 89 299 21661 900 500 02 69 08 04 lt 29 661 891 00 200 95 16 02 109 09 6 lt 5 986 58 291 01 S00 621 1621 8 1966 lt 21612 96 62 00 2r 2 ec e k v
30. Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1500 790 0 40 353 897 0 53 471 991 0 68 600 1075 0 83 739 1152 1 00 888 1600 828 0 46 412 931 0 60 536 1022 0 75 670 1104 0 92 813 1180 1 09 966 1700 866 0 54 478 966 0 68 608 1054 0 84 747 1134 1 01 895 1208 1 19 1053 1800 905 0 62 551 1001 0 77 687 1087 0 94 832 1165 1 11 985 1238 1 29 1148 1900 944 0 71 633 1037 0 87 774 1120 1 04 925 1197 1 22 1084 2000 983 0 81 723 1073 0 98 870 1154 1 16 1026 2100 1023 0 92 821 1110 1 10 975 1189 1 28 1137 2200 1063 1 05 929 1147 1 28 1089 2300 1104 1 18 1046 2400 2500 EXTERNAL STATIC PRESSURE in wg AIRFLOW 12 14 1 6 1 8 2 0 CFM Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 551B C 1500 1224 1 18 1045 1600 1250 1 27 1128 1700 1800 1900 2000 2100 2200 2300 2400 2500 NOTES LEGEND 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower 2 Maximum continuous bhp is 1 30 Watts Input Watts to Motor 3 See general fan performance not
31. ose 269 819 N eoi zg 21 FT 3NON 7 ot B SNON 90 ose 269 gis on SH 09 6 9 9 St 3NON 7 zm o SER 90 ose L9 269 gis ES ais 0 04 OLE 09 ziv 115 800800 007 052 008 222 891 621 00600 0 01 012 052 6 2 901 00800 92 go osr VZ 805 004 091 ooz 991 22 00V900 069 091 0 02 051 3NON 0279 ose 00 97 222 800800 0 9 22 052 eve 891 621 00 600 029 061 0 92 902 901 007800 92 go osr VZ 808 vi ON 0 9 021 0 81 22 99 00V900 0 9 021 091 3NON me 0 99 OLE 09 115 800800 09782095 oss 008 222 891 621 00600 055 012 052 vez 901 00800 zz 0 808 SIA oss ooz 22 99 00V900 oss 00z 3NON uis ores Ove 00 ele 222 800800 oes 22 052 82 891 621 00600 oes 081 0 92 002 901 007800 zz 80 osr VZ 805 vi ON oes 021 091 SLL 22 99 00v900 oes 021 091 6 3NON 04 9 08 02 7 92 0 29 9 09 8 27 61 91 700 700 99 19 02 09 909 668 S e v ec Jet 00V900 Sv 9 1 95 65 09 09 v Gc 6 v 6 02 L8L 08 99 008500 gs 0 56 vaz 181 suoi 7 Sv 9 1 08 08 S S 8 15 6 05 992 8 9 6 00200 v0 91 91 08 08 ge se 6 05 6 05 3NON si Ot L OV 99 29 08 02 0 0 29 S OS e v 61 91 700 700 Ot L OV 19 9 09 09 7 99 6 87 S e r ec Jet 00V900 Ot L OV
32. 0 66 661 1000 0 82 816 1079 0 98 974 1151 114 1136 1800 837 0 59 582 941 0 75 745 1029 0 91 909 1107 1 08 1075 1178 1 25 1244 1900 871 0 67 665 972 0 84 837 1059 1 02 1010 1136 119 1184 1206 1 37 1361 2000 906 0 76 756 1004 0 94 938 1089 1 12 1119 1165 1 31 1301 1234 1 49 1486 AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 1089 0 84 835 1153 0 98 971 1212 1 12 1111 1269 1 26 1256 1322 1 41 1404 1300 1114 0 92 915 1177 1 06 1056 1236 1 21 1202 1292 1 36 1353 1346 1 52 1508 1400 1139 1 01 1000 1202 1 15 1149 1261 1 31 1301 1316 1 47 1457 1369 1 63 1618 1500 1164 1 10 1093 1227 1 25 1248 1285 1 41 1407 1341 1 58 1570 1394 1 75 1736 1600 1190 1 20 1193 1252 1 36 1355 1311 1 53 1520 1366 1 70 1690 1418 1 87 1863 1700 1217 1 31 1301 1278 1 48 1470 1336 1 65 1642 1391 1 83 1818 1443 2 01 1998 1800 1244 1 42 1417 1305 1 60 1593 1362 1 78 1772 1416 1 97 1955 1468 2 15 2141 1900 1271 1 55 1541 1331 1 73 1724 1388 1 92 1911 1442 2 11 2101 1494 2 31 2294 2000 1298 1 68 1674 1358 1 87 1865 1415 2 07 2059 1468 2 27 2256 NOTES LEGEND 2 Maximum continuous bhp is 2 40 3 See general fan performance notes 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower Watts Input Watts to Motor Motor drive
33. 1120 1192 1 44 1279 1264 1 63 1448 1332 1 83 1625 2500 1069 1 22 1084 1149 1 39 1239 1223 1 58 1403 1293 1 77 1576 1360 1 98 1757 EXTERNAL STATIC PRESSURE wg AIRFLOW CFM 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1500 1188 1 09 970 1261 1 29 1143 1330 1 49 1327 1395 1 71 1523 1457 1 95 1729 1600 1208 1 16 1033 1279 1 36 1208 1347 1 57 1394 1412 1 79 1590 1474 2 02 1797 1700 1229 1 24 1103 1299 1 44 1280 1366 1 65 1468 1429 1 88 1665 1490 2 11 1873 1800 1250 1 33 1181 1319 1 53 1360 1385 1 74 1549 1448 1 97 1748 1508 2 20 1957 1900 1273 1 43 1266 1341 1 63 1447 1405 1 84 1638 1467 2 07 1839 1527 2 31 2050 2000 1296 1 53 1359 1363 1 74 1542 1427 1 95 1736 1488 2 18 1939 1546 2 42 2151 2100 1320 1 64 1459 1386 1 85 1646 1448 2 07 1842 1508 2 30 2047 1566 2 55 2262 2200 1345 1 77 1568 1409 1 98 1758 1471 2 20 1956 1530 2 44 2164 1587 2 68 2380 2300 1371 1 90 1686 1434 2 11 1878 1494 2 34 2080 1553 2 58 2290 1609 2 83 2509 2400 1397 2 04 1812 1459 2 26 2008 1518 2 49 2213 1576 2 73 2425 2500 1424 2 19 1948 1484 2 42 2147 1543 2 65 2355 1599 2 89 2571 NOTES LEGEND 2 Maximum continuous bhp is 2 90 3 See general fan performance notes Table 32
34. 1396 Fan Shaft Diameter at Pulley in 5 8 5 8 5 8 5 8 HIGH PRESSURE SWITCH psig Standard Compressor Internal Relief 450 50 Cutout 428 Reset Auto 320 LOSS OF CHARGE LOW PRESSURE SWITCH Liquid LIne psig Cutout 7 3 Reset Auto 22 5 FREEZE PROTECTION THERMOSTAT Opens F 30 Closes F 45 OUTDOOR AIR INLET SCREENS Cleanable Screen quantity and size varies with option selected RETURN AIR FILTERS Throwaway Quantity Size in 2 16x 25 x2 2 16 16 2 LEGEND Bhp Brake Horsepower Single phase three phase Table 2 Physical Data 551 BASE UNIT 551 024 036 048 060 NOMINAL CAPACITY nominal tons 2 3 4 5 OPERATING WEIGHT Ib Unit 435 445 465 635 Perfect Humidity Adaptive Dehumidification System 13 15 23 25 EconoMi er IV 50 50 50 50 Roof Curb 115 115 115 115 COMPRESSOR Scroll Quantity 1 1 1 1 Oil oz 25 42 56 53 REFRIGERANT TYPE R 22 Expansion Device Acutrol Metering Device Operating Charge Ib oz Standard Unit 5 3 7 11 8 8 12 11 Unit With Perfect Humidity Adaptive Dehumidification System 10 2 14 0 14 13 21 0 CONDENSER Propeller Quantity Diameter in 1 22 1 22 1 22 1 22 Nominal Cfm 3000 3500 3500 4100 Motor Hp Rpm 1 8 825 1 8 825 1 8 825 1 4 1100 Watts Input Total 180 180 180 320 CONDENSER COIL 3 8 in OD Enhanced Copper Tubes Aluminum Lanced Fins Rows Fins in 1 17 1 17 2 17 2 17 To
35. 18YAON3d V OS 5310 NI 031915 SY 1102 935480403 AHL IONVAVITO JO 9 6 E 0350 51 SLYSNSONOD D JHL N3HM S3HONI O Ndnl3d 14405 TYINOZIHOH 8 tel O3N 834 zy 3015 53974515 030 039 8 5 0 STIVM 31380802 32018 ONY LINN 33 138 73 822 anes NI 9 3015 Sl Ol 7105102 S39VJuns LINN BINE 2 WO1VUOdVA3 1415 JIN dd NI cv 3015 X08 108102 SLINA 33 138 P NOILVd3d0 5 1331 3 835 30 02 3dnsSY 01 S3HONI O9 QVJHN3AO 79 3015 18 2531 01140 SI 4919349 0 91 1 1 9NILL39 3015 JHL JHL S3HONI 21 3015 S3HONI SE MOTA HIV 834084 304 1100 10081 71004 1 303 1200 Ol SONVYVSTO HONI 193 W E 1 gt 91819373 SLINQ 398 2510 TWINOZTYOH NO S3HONI 0 8 334405 TBNVd GUND 9NISn LON 530 805 3181150800 Ol WOLIOH 79 33 140 093 3 390 CIVA3ud THNYd 2 1 S l GOOH AL N3 1H0No53 1191051 30 53000 19207 NnNININ 75 4109 N35N30NO2 AINO 8802 JOON AN055322V 01 Q3HOVllV 38 OL 7 8931114 318VS0dSI1Q
36. 19 1059 1206 1 37 1218 1277 1 56 1389 2300 997 0 97 865 1082 1 14 1010 1161 1 31 1165 1235 1 50 1329 1304 1 69 1503 2400 1033 1 09 970 1115 1 26 1120 1192 1 44 1279 1264 1 63 1448 1332 1 83 1625 2500 1069 1 22 1084 1149 1 39 1239 1223 1 58 1403 1293 1 77 1576 1360 1 98 1757 EXTERNAL STATIC PRESSURE wg AIRFLOW CFM 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 551B C 1500 1188 1 09 970 1261 1 29 1143 1330 1 49 1327 1395 1 71 1523 1457 1 95 1729 1600 1208 1 16 1033 1279 1 36 1208 1347 1 57 1394 1412 1 79 1590 1474 2 02 1797 1700 1229 1 24 1103 1299 1 44 1280 1366 1 65 1468 1429 1 88 1665 1490 2 11 1873 1800 1250 1 33 1181 1319 1 53 1360 1385 1 74 1549 1448 1 97 1748 1508 2 20 1957 1900 1273 1 43 1266 1341 1 63 1447 1405 1 84 1638 1467 2 07 1839 1527 2 31 2050 2000 1296 1 53 1359 1363 1 74 1542 1427 1 95 1736 1488 2 18 1939 2100 1320 1 64 1459 1386 1 85 1646 1448 2 07 1842 1508 2 30 2047 2200 1345 1 77 1568 1409 1 98 1758 1471 2 20 1956 2300 1371 1 90 1686 1434 2 11 1878 1494 2 34 2080 2400 1397 2 04 1812 1459 2 26 2008 2500 1424 2 19 1948 NOTES LEGEND 1 Bold cells indicate field supplied drive is required
37. 6 0 8 1 0 Rpm Bhp Bhp Rpm Bhp Rpm Bhp Rpm Bhp 600 500 0 08 531 0 08 607 0 14 713 0 21 788 0 29 878 0 37 700 529 0 09 567 0 09 633 0 16 739 0 24 816 0 32 902 0 41 800 547 0 1 592 0 12 660 0 19 761 0 27 845 0 37 937 0 47 900 570 0 13 620 0 14 691 0 22 793 0 32 870 0 42 957 0 53 1000 599 0 15 650 0 16 717 0 26 818 0 36 894 0 47 981 0 58 34 Table 15 Performance 551 036 551C 036 Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg 02 0 4 0 6 0 8 1 0 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 566 0 14 142 690 0 23 228 791 0 32 320 879 0 42 418 957 0 52 522 1000 598 0 17 173 718 0 27 267 817 0 37 366 903 0 47 471 981 0 58 581 1100 632 0 21 210 748 0 31 311 844 0 42 418 929 0 53 530 1006 0 65 646 1200 666 0 25 252 778 0 36 361 873 0 48 476 956 0 60 594 1031 0 72 718 1300 701 0 30 300 809 0 42 418 902 0 54 540 983 0 67 665 1057 0 80 796 1400 737 0 36 355 842 0 48 481 932 0 61 610 1012 0 75 744 1085 0 89 881 1500 774 0 42 417 875 0 55 551 962 0 69 689 1041 0 83 830 1112 0 98 974 EXTERNAL STATIC PRESSURE in wg MS 12 14 1
38. 61 1428 1247 1 83 1629 1320 2 06 1832 1388 2 30 2039 2900 1204 1 77 1572 1281 2 00 1779 1353 2 24 1989 3000 1240 1 94 1725 1315 2 18 1939 EXTERNAL STATIC PRESSURE wg AIRFLOW 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1800 1244 1 33 1182 1308 1 51 1345 1369 1 70 1513 1427 1 90 1687 1483 2 10 1867 1900 1268 1 44 1275 1332 1 63 1443 1393 1 82 1617 1450 2 02 1796 1505 2 23 1979 2000 1294 1 55 1376 1357 1 74 1549 1417 1 95 1727 1474 2 15 1911 1528 2 36 2100 2100 1320 1 67 1483 1382 1 87 1662 1441 2 08 1845 1498 2 29 2034 2200 1346 1 80 1598 1408 2 01 1782 1466 2 22 1971 2300 1372 1 94 1721 1434 215 1911 1491 2 37 2105 2400 1400 2 09 1852 1460 2 31 2047 2500 1427 2 24 1992 2600 2700 2800 2900 3000 NOTES LEGEND 1 Bold cells indicate field supplied drive is required 2 Maximum continuous bhp is 2 40 3 See general fan performance notes Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 1120 to 1585 rpm All other rpms require field supplied drive 46 Table 33 Fan Performance 551B 072 Horizontal Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AIRFLOW 02 0 4 0 6 1 0 CFM Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1800 822 0 51 455 927 0 66 589 1018 0 82 728 1100 0 98 873 1174 1 15 1024 1900
39. 855 0 59 520 957 0 74 659 1046 0 91 805 1127 1 08 956 1200 1 25 1113 2000 889 0 66 591 988 0 83 737 1075 1 00 888 1154 1 18 1045 1226 1 36 1208 2100 923 0 75 668 1019 0 92 821 1104 1 10 979 1182 1 29 1142 1253 1 48 1310 2200 957 0 85 753 1051 1 03 912 1134 1 21 1077 1210 1 40 1245 1280 1 60 1419 2300 992 0 95 845 1083 1 14 1011 1164 1 33 1182 1239 1 53 1357 1308 1 73 1537 2400 1026 1 06 945 1115 1 26 1118 1195 1 46 1295 1268 1 66 1476 1336 1 87 1662 2500 1061 1 19 1053 1148 1 39 1233 1226 1 59 1416 1297 1 81 1604 1364 2 02 1796 2600 1097 1 32 1169 1181 1 53 1356 1257 1 74 1546 1327 1 96 1740 1393 2 18 1938 2700 1132 1 46 1294 1214 1 67 1487 1289 1 90 1684 1358 2 12 1885 1422 2 35 2089 2800 1168 1 61 1428 1247 1 83 1629 1320 2 06 1832 1388 2 30 2039 1452 2 53 2249 2900 1204 1 77 1572 1281 2 00 1779 1353 2 24 1989 1419 2 48 2202 1482 2 72 2419 3000 1240 1 94 1725 1315 2 18 1939 1385 2 43 2156 1451 2 68 2376 EXTERNAL STATIC PRESSURE in wg AIRFLOW CFM 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1800 1244 1 33 1182 1308 1 51 1345 1369 1 70 1513 1427 1 90 1687 1483 2 10 1867 1900 1268 1 44 1275 1332 1 63 1443 1393 1 82 1617 1450 2 02 1796 1505 2 23 1979 2000 1294 1 55 1376 1357 1 74 1549 1417 1 95 1727 1474 2 15 1
40. 92 vo v9 269 816 pope es St 921 gt E o z vo v9 269 819 SJA 25 01 E o z vo L v9 269 819 ON SH Do Ly SL 921 ES 61 vo v9 269 819 SJA ais Sb 01 SL 61 vo v9 269 816 0 16 Sb 124012 242 800 800 01 Sc 05 072 8 91 621 600 04 4 Sc Z8Z 901 800 92 vo 69 v9 809 viv SJA 04 02 991 24 ss 900 0 L 02 E 89 SE Ov 97 242 800 800 89 22 Sc Erz 8 94 621 600 89 61 Sc 902 901 800 92 vo 69 v9 808 viv ON 89 LL oz 24 ss 900 19 LL oz E 99 Ze Sb 00 242 800 800 9962089 99 05 992 8 91 621 600 99 4 Sc 222 901 800 ee vo 69 v9 808 viv S3A 99 02 VSL 24 gs 900 99 L 02 ex ais 5 ve Ov ele 242 800 800 vS 22 Sc 862 8 91 621 600 vs 8L Sc 002 901 800 ee vo 69 v9 808 viv ON vS LL oz 24 99 900 89 01 02 901 02 59 08 0 Y S 09 05 86 61 91 700 700 95 14 07 09 v O9 6 89 986 V Lv et 500 ge 55 Ov Ot v 8 6 6 6 02 1 81 8 69 200 gs 86 S EL 181 SJA uor v OY 08 62 98 S8 81 62 9 91 9 1 8 6 6 200 870 62 62 98 S vec gt Sa SH 981 9Eb 99 9 08 0 7 02 0 29 909 8 8 61 91 700 700 92 9 LS Sv 09 05 99 6 87 986 Leelee 500 92 9 1 Le 82 98 S 6 662 6 02 1 8
41. AND HEAT SECTION ACCESS PANEL Fig 7 Roof Curb Alignment C06208 A WARNING PERSONAL INJURY AND PROPERTY DAMAGE HAZARD Failure to follow this warning could result in personal injury death and property damage All panels must be in place when rigging and lifting 516900 5 3015 suolsuauig HUN ILA ZL0 980 TISS 8 3915 953JY ld 8 INOS 3015 45 13 4 30 1991 39UVHOSIQ 431734 OIuL340UVB Aldd
42. CONTROL POST PANEL SCREWS CORNER POST COIL CENTER POST REMOVE SCREWS COMPRESSOR ACCESS OUTDOOR REMOVE COIL PANEL COIL CORNER POST C06044 Fig 45 Cleaning Condenser Coil COIL CORNER CENTER BAFFLE TOP PANEL POST COMPRESSOR ACCESS PANEL OUTDOOR COIL C06045 Fig 46 Propping Up Top Panel TOP VIEW TOP PANEL CENTER BAFFL OUTDOOR COIL INNER COIL SECTION OUTER COIL SECTION HAIRPIN END C06046 Fig 47 Separating Coil Sections 4 Remove device holding coil sections together at return end of condenser coil Carefully separate the outer coil section 3 to 4 in from the inner coil section See Fig 47 5 Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris Clean the outer surfaces with a stiff brush in the normal manner 6 Secure the sections together Reposition the outer coil section and remove the coil corner post from between the top panel and center post Install the coil corner and center posts Replace all screws Condensate Drain Check and clean each year at the start of the cooling season In winter keep the drain dry or protect it against freeze up Filters Clean or replace at the start of each heating and cooling season or more often if operating conditions require it Replacement filters must be the same dimensions as the original filters Outdoor Air Inlet Screen Clean the screen with steam or hot water and a mild dete
43. If electric heaters do not energize reset limit switch located on evaporator fan scroll by pressing button located between terminals on the switch TO SHUT OFF UNIT Set system selector switch at OFF position Resetting thermostat at a position below room temperature temporarily shuts unit off until space temperature falls below thermostat setting Safety Relief A soft solder joint at the suction line fitting provides pressure relief under abnormal temperature and pressure conditions Ventilation Continuous Fan Set fan and system selector switches at ON and OFF positions respectively Evaporator fan operates continuously to provide constant air circulation Operating Sequence Cooling Units Without Economizer When thermostat calls for cooling terminals and 1 are energized The indoor fan contactor IFC reversing valve solenoid RVS and compressor contactor are energized and indoor fan motor compressor and outdoor fan starts The outdoor fan motor runs continuously while unit is cooling Heating Units Without Economizer When the thermostat calls for heating terminal W1 will be energized with 24v The IFC and heater contactor no 1 are energized Cooling Units With EconoMi er IV When free cooling is not available the compressors will be controlled by the zone thermostat When free cooling is available the outdoor air damper is modulated by the EconoMi er IV control to provide 50 to 55 F
44. M DISCONNEGT SIZES 060 AND 072 PERNEC _ 1 E FIELD POWER SUPPLY pese DISCONNECT B IZES 036 AND 048 _ BLK 4 49 a BLU 23 FIELD POWER SUPPLY ttt 460 3 60 DISCONNECT SIZES 036 AND 048 CS Ey C06158 Fig 11 Power Wiring Connections LOW VOLTAGE INTEGRATED GAS UNIT CONNECTIONS CONTROLLER IGC m EM 800 C06125 Fig 12 Field Control Wiring Raceway ove 0 0 272 891 00V600 012 osz vez eti 901 00 800 021 ooz 61 901 Le 00 200 zz oes rs 809 vit ooz 00 900 0791 INON E 09 ozz 052 sez 891 0ov600 Ogre OR 09 081 osz 002 eel 901 00 800 09 091 ooz 09 901 Le 00 200 zz 809 vit ON 09 22 lt lt 00 900 09 06 051 06 3NON 99 19 04 09 996 755 2 2 O0VS00 SP OV serig6e 6526121 96 62 009700 95 68 recieve 60281 08 99 008500 Ot ez lt 815 262 951081 85 67 00 200 20 4 oe 50 4 86 18 mE
45. Parking Air Intakes 0 10V 9 Loading Docks Proportional 4 20 mA 0 2000 700 50 LEGEND ppm Parts Per Million 31 5518 0 35 0 3 0 25 0 2 0 15 DELTA P WG 0 1 0 05 4 amp 5 6 ton 0 0 1000 2000 3000 4000 5000 6000 C06133 Fig 39 Perfect Humidity Adaptive Dehumidification System Static Pressure Drop in wg MOTOR MOUNTING NUTS Fig 40 Belt Drive Motor Mounting C06134 STRAIGHTEDGE OR STRING MUST BE PARALLEL WITH BELT MOVABLE FLANGE MOTOR AND FAN SHAFTS MUST BE PARALLEL SETSCREWS FIXED FLANGE SINGLE GROOVE C06041 Fig 41 Evaporator Fan Pulley Adjustment Table 8 551B 551C Fan Rpm at Motor Pulley Setting With Standard Motor d MOTOR PULLEY TURNS OPEN 551C 0 1 2 1 11 2 2 21 5 3 31 5 4 41 5 5 51 2 6 024 936 906 876 846 816 786 756 726 696 666 639 036 1044 1008 971 935 898 862 826 789 753 716 680 048 1185 1144 1102 1061 1019 978 936 895 853 812 770 060 1460 1425 1389 1354 1318 1283 1248 1212 1177 1141 1106 1070 1035 072 1585 1538 1492 1445 1399 1352 1305 1259 1212 1166 1119 fan rpm shown standard motordrive Table 9 551 551 at Motor Pulley Setting With High Static Motor UNI
46. Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg ARETON 0 2 0 4 0 6 0 8 10 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 666 0 25 252 778 0 36 361 873 0 48 476 956 0 60 594 1031 0 72 718 1300 701 0 30 300 809 0 42 418 902 0 54 540 983 0 67 665 1057 0 80 796 1400 737 0 36 355 842 0 48 481 932 0 61 610 1012 0 75 744 1085 0 89 881 1500 774 0 42 417 875 0 55 551 962 0 69 689 1041 0 83 830 1112 0 98 974 1600 811 0 49 487 909 0 63 629 994 0 78 774 1071 0 93 923 1141 1 08 1076 1700 849 0 57 565 943 0 72 715 1026 0 87 869 1101 1 03 1025 1170 1 19 1185 1800 887 0 65 651 978 0 81 810 1059 0 98 972 1133 114 1136 1900 926 0 75 746 1014 0 92 914 1092 1 09 1084 2000 965 0 86 852 1050 1 03 1028 EXTERNAL STATIC PRESSURE wg 12 14 1 6 1 8 2 0 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 1100 0 85 845 1165 0 98 977 1225 1 12 1112 1300 1126 0 94 930 1189 1 07 1069 1400 1152 1 03 1023 1215 1 17 1168 1500 1179 1 13 1123 1600 1700 1800 1900 2000
47. in the return air duct See Fig 35 Wiring is provided in the EconoMi er IV wiring harness See Fig 27 The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the EconoMi er IV controller When using this mode of changeover control turn the enthalpy setpoint potentiometer fully clockwise to the D setting Indoor Air Quality IAQ Sensor Input The IAQ input can be used for demand control ventilation control based on the level of CO2 measured in the space or return air duct Mount the accessory sensor according to manufacturer specifications The IAQ sensor is wired to the and 1 terminals of the controller Adjust the DCV potentiometers to correspond to the DCV voltage output of the indoor air quality sensor at the user determined set point See Fig 38 If a separate field supplied transformer is used to power the IAQ sensor the sensor must not be grounded or the EconoMi er IV control board will be damaged Exhaust Set Point Adjustment The exhaust set point will determine when the exhaust fan runs based on damper position if accessory power exhaust is installed The set point is modified with the Exhaust Fan Set Point EXH SET potentiometer See Fig 33 The set point represents the damper position above which the exhaust fans will be turned on When there is a call for exhaust the EconoMi er IV controller provides a 45 15 second delay before exhaust fan act
48. indicate field supplied drive is required 2 Maximum continuous bhp is 2 40 3 See general fan performance notes Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 1075 to 1455 rpm All other rpms require field supplied drive 42 Table 27 Fan Performance 551B 048 551C 048 Horizontal Discharge Units Standard Motor Belt Drive AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 0 2 0 4 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 643 0 23 233 762 0 35 344 860 0 46 459 944 0 58 579 1020 0 71 705 1300 674 0 28 276 791 0 40 395 887 0 52 517 970 0 65 645 1045 0 78 777 1400 706 0 33 324 820 0 45 451 914 0 59 582 997 0 72 717 1071 0 86 857 1500 738 0 38 379 849 0 52 515 942 0 66 653 1024 0 80 796 1097 0 95 942 1600 771 0 44 440 879 0 59 584 971 0 74 731 1051 0 89 881 1124 1 04 1035 1700 804 0 51 507 910 0 66 661 1000 0 82 816 1079 0 98 974 1151 114 1136 1800 837 0 59 582 941 0 75 745 1029 0 91 909 1107 1 08 1075 1900 871 0 67 665 972 0 84 837 1059 1 02 1010 1136 1 19 1184 2000 906 0 76 756 1004 0 94 938 1089 1 12 1119 AIRFLOW EXTERNAL STATIC PRE
49. le 8z ge se v 6 62 6 02 L8L 08 59 008500 gs 0 56 92 281 9z Sz 08 08 8992 6 vz 95 91 8 9 6 00200 92 92 08 08 6 2 6 2 3NON T 9911 69 29 08 02 v4 8 39 S OS e v 61 91 700 700 GLL SLL 99 09 09 09 2 69 8 29 S e r ec Jet 007500 91911 98 z8 0 36 e 6 02 L8L 08 59 008500 6v 0 56 voz 181 SLUSLE 62 62 S S 270 0 0 991 91 8 9 6 00200 9911 62 62 S S 00 0 0 3NON dis 011 011 79 93 02 02 69 8 09 S OS e v 61 91 700 700 OLL OLL OS vV 09 09 20 8 27 S e r ec Jet 007500 OLL OLL 08 9z 35 05 2 8 82 6 02 L8L 08 99 008500 6 0 56 voz 181 ON OLL OLL 05 05 L Se 0 vz 99 91 8 9 6 00200 OLL OLL 08 08 2 0 2 3NON 561 86 211 96 9 021 6 901 9 28 8 92 6L 0 91 00 00 561 86 96 8 011 06 101 768 lt 21 829 200 200 561 86 62 59 08 04 8 8 8 69 Z vS 6 9v 911 8 6 200200 921 96 1 69 29 09 09 7 99 7 09 9 v LE 08 59 008500 on k TANE One Sei set 1 1 Sv Gy 8 6 0v 00V100 921 96 1 16116 Sv Sv 3NON EM 061 06 901 6 9 911 6 001 9 28 8 92 5 61 10 91 700 700 021 06 1 68 82 001 06 896 8 9 22 8 29 200 200 061 0 89 09 08 0 9 evo Z vS 6 9v 91 86 200200 061 06 09 05 19 7 97 9 r LE 08 59 008500
50. location See Fig 21 When the outdoor air enthalpy rises above the outdoor enthalpy changeover set point the outdoor air damper moves to its minimum position The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the EconoMi er IV controller The set points are A B C and D See Fig 36 The factory installed 620 ohm jumper must be in place across terminals SR and SR on the EconoMi er IV controller See Fig 21 and 37 Differential Enthalphy Control For differential enthalpy control the EconoMi er IV controller uses two enthalpy sensors 57 078 CRENTDIF004A00 one in the outside air and one in the return air duct The EconoMi er IV controller compares the outdoor air enthalpy to the return air enthalpy to determine IV use The controller selects the lower enthalpy air return or outdoor for cooling For example when the outdoor air has a lower enthalpy than the return air the EconoMi er IV opens to bring in outdoor air for free cooling E 5 2500 5 gt 2000 tt 1500 im a 1000 gt 25 amp 500 2 0 0 05 0 15 0 25 i STATIC PRESSURE in wg C06030 Fig 28 Barometric Flow Capacity 5 30 H 2 25 20 15 10 ea D 5 o 2 0 r r r r r r r r 0 13 0 20 0 22 0 25 0 30 0 35 0 40 0 45
51. not been reached By the time the level reaches the set point the damper will be at maximum ventilation and should maintain the set point In order to have the sensor control the economizer damper in this manner first determine the damper voltage output for minimum or base ventilation Base ventilation is the ventilation required to remove contaminants during unoccupied periods The following equation may be used to determine the percent of outside air entering the building for a given damper position For best results there should be at least a 10 degree difference in outside and return air temperatures OA TR RA Tox 100 100 TM To Outdoor Air Temperature OA Percent of Outdoor Air TR Return Air Temperature RA Percent of Return Air Mixed Air Temperature Once base ventilation has been determined set the minimum damper position potentiometer to the correct position The same equation can be used to determine the occupied or maximum ventilation rate to the building For example an output of 3 6 volts to the actuator provides a base ventilation rate of 596 and an output of 6 7 volts provides the maximum ventilation rate of 2095 or base plus 15 cfm per person Use Fig 38 to determine the maximum setting of the CO sensor For example a 1100 ppm set point relates to a 15 cfm per person design Use the 1100 ppm curve on Fig 38 to find the point when the CO sensor output will be 6 7 volts
52. on SIE 538 est ON 061 06 0 0 elest 00V100 061 06 Ob oy vul vid vid Jooov vid ALO vul uN ixuno Wal ANOO Wal TVNIWON JINn 3215 LOANNOOSIA Addns 31419773 gt 28166 4009 DTSS eBJed BAI Ser 14 261 261 28 82 001 06 6 58 8 9 z Ss 921661 900 00 261 61 22 59 08 02 9221769 908 8 e st 00 00 261 261 89 9 04 09 9 98 686 55 291101 0000 261 261 OS Gb 6 Sp L bb S2 6 12 96 64 oogtyoo Bie i eci AB 261 61 95 95 op oy 9 95 9 95 99091 8 lt 6 00 200 261 261 95 95 9 95 9 95 3NON b 181 281 28 22 06 08 L 68 84 e to z 55 ve 6 6L lt 00 00 181 281 19 65 08 02 vo G OG e e st 00 00 181 281 9 2 09 09 929 19 2191101 0000 281 281 Sv 0v 6 0v 9 lt 2 612 96 64 oogtyoo Bie l ect RE ON 181 281 05 05 GE G 9 0 9 0 99091 5 6v 00 200 281281 05 05 GE G 9 05 9 05 3NON 09 5 052 02 98 92 001 06 6716 1
53. potentiometer to previous setting 8 Remove jumper from TR to 1 9 Remove 5 6 kilo ohm resistor from T and T1 Reconnect wires at T and T1 3 Set DCV maximum position potentiometer to previous 10 Remove jumper from P to P1 Reconnect device at P and setting P1 4 Set minimum position DCV set point and exhaust 11 Apply power 24 vac to terminals TR and potentiometers to previous settings 5 Remove 620 ohm resistor from terminals Sg and 4 Table 35 Cooling Service Analysis PROBLEM CAUSE REMEDY Compressor and Condenser Fan Will Not Start Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective thermostat contactor transformer or control relay Replace component Insufficient line voltage Determine cause and correct Incorrect or faulty wiring Check wiring diagram and rewire correctly Thermostat setting too high Lower thermostat setting below room temperature Compressor Will Not Start But Condenser Fan Runs Faulty wiring or loose connections in compres Sor circuit Check wiring and repair or replace Compressor motor burned out seized or in ternal overload open Determine cause Replace compressor Defective run start capacitor overload start relay Determine cause and replace One leg of 3 phase power dead Replace fuse or reset circuit break
54. space to sense average temperature in accordance with thermostat installation instructions Route thermostat cable or equivalent single leads of colored wire from subbase terminals through connector on unit to low voltage connections shown in Fig 10 NOTE For wire runs up to 50 ft use no 18 AWG American Wire Gauge insulated wire 35 C minimum For 50 to 75 ft use no 16 AWG insulated wire 35 C minimum For over 75 ft use no 14 AWG insulated wire 35 C minimum All wires larger than no 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat 1 Connect thermostat wires to screw terminals of low voltage terminal board 2 Pass the control wires through the hole provided in the control box 3 Some models may be equipped with a raceway built into the corner post on the left side of control box See Fig 12 This raceway provides the required clearance between high voltage and low voltage wiring For models without a raceway ensure to provide the NEC required clearance between high voltage and low voltage wiring Heat Anticipator Settings Set heat anticipator settings at 0 8 amp for first stage and 0 3 for second stage heating COOL STAGE 1 gt 1 HEAT STAGE 1 15 WIRE COOL STAGE 2 vY2 p CONNECTIONS HEAT STAGE 2 ow2 5 LOW VOLTAGE EU abies enis SECTION 24 VAC HOT EVA fien 24
55. 0 5 1 0 06110 Fig 3 Unit Leveling Tolerances CONDENSATE PAN SIDE VIEW HORIZONTAL DRAIN OUTLET DRAINPLUG NOTE Drain plug is shown in factory installed position Fig 4 Condensate Drain Connection C06003 Positionin Maintain clearance around and above unit to provide minimum distance from combustible materials proper airflow and service access See Fig 7 8 and 9 Position unit on roof curb so that the following clearances are maintained in clearance between the roof curb and the base rail inside the front and rear 0 0 in clearance between the roof curb and the base rail inside on the duct end of the unit This will result in the distance between the roof curb and the base rail inside on the condenser end of the unit being approximately equal to Fig 2 section C C Do not install unit in an indoor location Do not locate unit air inlets near exhaust vents or other sources of contaminated air MINIMUM PITCH ONE IN PER ____ OF LINE DRAIN PLUG NOTE Trap should be deep enough to offset maximum unit static difference A 4 in trap is recommended C06004 Fig 5 Condensate Drain Piping Details Although unit is weatherproof guard against water from higher level runoff and overhangs After unit is in position remove polyethylene shipping wrapper and top crating POSITION ALL SEAL STRIPS IN PLACE BEFORE POSITIONING 36 54
56. 0 50 STATIC PRESSURE in wg C06031 Fig 29 Outdoor Air Damper Leakage 27 6000 5000 4000 3000 2000 1000 FLOW IN CUBIC FEET PER MINUTE cfm o 0 05 0 10 015 020 STATIC PRESSURE wg 0 25 0 30 0 35 C06032 Fig 30 Return Air Pressure Drop 57 078 ENTHALPY SENSOR 551B C C06361 Fig 31 Enthalpy Sensor and Mounting Plate SUPPLY AIR TEMPERATURE SENSOR MOUNTING LOCATION N SUPPLY AIR TEMPERATURE SENSOR BP C06033 Fig 32 Supply Air Sensor Location 551 EXHAUST FAN SETPOINT LED LIGHTS T WHEN EXHAUST a Sov CONTACT IS MADE DAMPER uM P LT lir POSITION SETTING Et DAMPER Open DEMAND CONTROL VENTILATION SET POINT pov M LED LIGHTS WHEN Q DEMAND CONTROL VENTILATION INPUT gt ABOVE SETPOINT ie te DEMAND CONTROL VENTILATION SETPOINT se B LED LIGHTS WHEN OUTDOOR AIR 15 SUITABLE FOR FREE COOLING ENTHALPY CHANGEOVER SET POINT 06034 Fig 33 EconoMi er IV Controller Potentiometer and LED Locations Replace the standard outside air dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting location See Fig 21 Mount the return air enthalpy sensor
57. 08 0 36 358 894 0 47 465 971 0 58 578 1100 612 0 20 195 735 0 30 298 834 0 41 406 919 0 52 519 995 0 64 638 1200 643 0 23 233 762 0 35 344 860 0 46 459 944 0 58 579 1020 0 71 705 1300 674 0 28 276 791 0 40 395 887 0 52 517 970 0 65 645 1045 0 78 777 1400 706 0 33 324 820 0 45 451 914 0 59 582 997 0 72 717 1071 0 86 857 1500 738 0 38 379 849 0 52 515 942 0 66 653 1024 0 80 796 1097 0 95 942 AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 1017 0 64 635 1082 0 76 753 1143 0 88 876 1200 1 01 1004 1254 1 14 1136 1000 1041 0 70 696 1105 0 82 820 1166 0 95 948 1223 1 09 1081 1100 1065 0 77 763 1129 0 90 892 1189 1 03 1026 1245 1 17 1165 1200 1089 0 84 835 1153 0 98 971 1212 1 12 1111 1300 1114 0 92 915 1177 1 06 1056 1400 1139 1 01 1000 1202 1 15 1149 1500 1164 1 10 1093 NOTES LEGEND 1 Bold cells indicate field supplied drive is required 2 Maximum continuous bhp is 1 20 3 See general fan performance notes Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 680 to 1044 rpm All other roms require field supplied drive Table 26 Fan Performance 551B 036 551C 036 Horizontal Discharge Units High Static Motor Belt Drive
58. 08 02 27 069 lt 05 8 61 891 00 00 vez vez 88 69 02 09 529 95 1 01 S00 vez vez t 68 Os Sv 69 210 6 lt 2 612 96 64 700 BE Y P3k qma Ue 5 xs vez vez 6 sy sy sov sor 99 981 83 6 200 vez vez 66 6 cy sy 90 90 612 612 28 24 06 08 L69 r8 89 295 52 661 900 600 612 612 29 69 og oz 909 8ey 61 891 00 00 612 612 09 09 9219 19 11 01 S00 612 612 9 2 61 96 62 700 K3 ope 7206 on 612 612 ve 09 09 956 96 991 981 89 6 200 612 612 ve 09 09 T soz 502 98 97 00L 06 698 694 859 209 62 66 900 600 097 0801800 Soz 02 69 08 0 5 049 909 8ey 61 891 00 00 Soz 95 16 07 09 vog ees 1 01 lt 00 902 502 Le 6 eey 966 esz elz 96 62 700 ss 7206 5 Soz 18 18 crisp 896 896 99 96 89 6Y 200 S0z 18 18 sy sy 896 886 dis 002 002 08 0 06 08 6 98 6 92 859 259 6 2 661 800 600 002 002 99 25 08 04 0 029 lt 05 8 C6L GL 00 00 002 002 19 62 05 04 795 68 986 786 261 01 S00 002 002 9 09 09 886 976 652 612 96 62 700 58 k 706 ad ON 002 002 ze 0 05 eze 8ze 991 981 83 6 200 002 002 ze oror eze eze
59. 1 8 69 200 gs 6 S EL 181 92 9 1 Se 06 08 892 2 2 9 91 9 1 8S 6v 200 92 9E L 55 8Z 08 08 vt 2 gt Sa LEE ELE 69 29 08 0 v4 8 99 S OS 8 8 61 91 700 700 09507066804 99 05 09 09 2 68 8 ZS S 8 Lv et 500 LLL LLL SE 26 S 86 6 02 1 81 8 69 200 ev 6 S EL 181 SJA 62 22 98 S 4706 582 9 91 9 1 84 67 200 LEE ELE 42122 98 S 82 82 ais 901 901 99 99 02 0 665 809 05 86 61 91 00 00 901 901 0S ty 09 05 2 79 8 27 S 8 Lv et 500 901 901 0 92 98 08 882 6 02 1 81 8 59 800 ev 6 181 901 901 ve ec 0 08 492 Vez 9 91 9 1 8S 6v 200 901 901 22 22 08 08 920 1900 I bel vvh 211 86 921 10 9021 6 30 9 8 8 9 61 0 91 700 700 bel vvh S6 58 001 06 8101 2 68 922 8 29 91 800 800 bel 4 99 08 0 88 8 69 6 9 911 96 200 200 1 5 bel 89 v 09 09 99 7 09 5 98 V LE 08 59 00 9 92 552 t wae 266 SH bel vvh 68 68 09 05 Zhe 2719 881 6 91 100 12491241 6 68 05 05 Zi 2719 E 6 901 26 921 10 9911 6 00 9 8 8 9 61 0 91 700 700 6 1 68 8 001 06 8 96 8 922 8 29 9L V L 800 800 6 89 09 08 0 8 6 8 79 69 98 86 200 200 6 Lv ev 09 09 viS v Sv 5 98 V 1
60. 2 0 42 47 52 57 62 67 72 77 Suction Line deg C06150 Fig 59 Cooling Charging Chart Standard 551C 048 551C 5 TON CHARGING CHART is ds a 3 85 29 Suction Line Temperature deg C PO 0 0 5 0 10 0 15 0 20 0 25 0 810 0 115 0 105 0 95 0 85 0 75 0 Suction Line Pressure kpa 410 0 65 0 55 0 310 0 42 47 52 57 62 67 72 77 Suction Line Temp deg C06151 Fig 60 Cooling Charging Chart Standard 551C 060 56 TROUBLESHOOTING Unit Troubleshooting Refer to Tables 35 37 for unit troubleshooting details Economi er IV Troubleshooting See Table 38 for EconoMif er IV logic A functional view of the EconoMi er IV is shown in Fig 61 Typical settings sensor ranges and jumper positions are also shown An EconoMi er IV simulator program is available from your Bryant distributor to help with EconoMi er IV training and troubleshooting IV Preparation This procedure is used to prepare the EconoMi er IV for troubleshooting No troubleshooting or testing is done by performing the following procedure NOTE This procedure requires a 9 v battery 1 2 kilo ohm resistor and a 5 6 kilo ohm resistor which are not supplied with the EconoMi er IV IMPORTANT Be sure to record the positions of all potentiometers before starting troubleshooting 1 Disconnect power at TR and TRI LEDs should be off Exhaust fan contacts shoul
61. 33ZCSENCO2 4 Sensor 33ZCASPCO2 CRENTDIF004A00 and CRTEMPSNO02A00 accessories are used on many different base units As such these kits may contain parts that will not be needed for installation T 337 5 2 is an accessory sensor 33ZCASPCO2 is an accessory aspirator box required for duct mounted applications tt CRCBDIOX005A00 is an accessory that contains both 33ZCSENCO2 and 33ZCASPCO2 accessories Outdoor Dry Bulb Changeover The standard controller is shipped from the factory configured for outdoor dry bulb changeover control The outdoor air and supply air temperature sensors are included as standard For this control mode the outdoor temperature is compared to an adjustable set point selected on the control If the outdoor air temperature is above the set point the EconoMi er IV will adjust the outdoor air dampers to minimum position If the outdoor air temperature is below the set point the position of the outdoor air dampers will be controlled to provide free cooling using outdoor air When in this mode the LED next to the free cooling set point potentiometer will be on The changeover temperature set point is controlled by the free cooling set point potentiometer located on the control See Fig 33 The scale on the potentiometer is A B C and D See Fig 34 for the corresponding temperature changeover values Differential
62. 4 Schrader type service ports one on the suction line one on the liquid line and 2 on the compressor discharge line Be sure that caps on the ports are tight High Flow Valves Two high flow refrigerant valves are located on the hot gas tube coming out of the compressor and the suction tubes Large black plastic caps distinguish these valves with O rings located inside the caps No field access to these valves is available at this time Ensure the plastic caps are in place and tight or the possibility of refrigerant leakage could occur Compressor Rotation On 3 phase units be certain that the compressor is rotating in the proper direction To determine whether or not compressor is rotating in the proper direction 1 Connect the service gauges to suction and discharge pressure fittings 2 Energize the compressor 3 The suction pressure should drop and the discharge pressure should rise as is normal on any start up If the suction pressure does not drop and the discharge pressure does not rise to normal levels 1 Note that the indoor fan 060 and 072 three phase units only is probably also rotating in the wrong direction 2 Turn off power to the unit and tag disconnect 3 Reverse any two of the unit power leads 4 Turn on power to the unit and energize the compressor The suction and discharge pressure levels should now move to their normal start up levels NOTE When the compressor is rotating in the wrong direction
63. 5 5 5 7 3 Unit with Perfect Humidity Adaptive Dehumidification System Rows Fins in 1 17 2 17 2 17 2 17 Total Face Area sq ft 3 9 3 9 3 9 5 2 EVAPORATOR FAN Centrifugal Type Belt Drive Quantity Size in 1 10x 10 1 10x 10 1 10 10 1 10x 10 Nominal Cfm 1200 1600 2000 2400 Maximum Continuous Bhp Std 1 20 1 20 1 30 2 40 2 40 Hi Static 2 40 2 40 2 90 2 90 Motor Frame Size Std 48 48 56 56 Hi Static 56 56 56 56 Fan Rpm Range Std 680 1044 770 1185 1035 1460 1035 1460 1120 1585 Hi Static 1075 1455 1075 1455 1300 1685 1300 1685 Motor Bearing Type Ball Ball Ball Ball Maximum Fan Rpm 2100 2100 2100 2100 Motor Pulley Pitch Diameter A B in Std 1 9 2 9 1 9 2 9 2 4 3 4 2 4 3 4 Hi Static 2 8 3 8 2 8 3 8 3 4 4 4 3 4 3 4 Nominal Motor Shaft Diameter in Std 1 5 1 2 5 8 5 8 Hi Static 5 8 5 8 7 8 lg Fan Pulley Pitch Diameter in Std 4 5 4 0 4 0 3 7 Hi Static 4 5 4 5 4 5 4 5 Belt Type Length in Std 1 36 1 36 1 4 40 1 38 Hi Static 1 39 1 39 1 40 1 40 Pulley Line Distance 10 0 12 4 10 0 12 4 14 7 15 5 14 7 15 5 Speed Change per Full Turn of Std 65 70 75 95 Movable Pulley Flange rpm Hi Static 65 65 60 60 Movable Pulley Maximum Full Std 5 5 6 5 Turns from Closed Position Hi Static 6 6 5 5 Factory Setting Full Turns Open Std 3 3 3 3 Hi Static 31 2 31 5 31 2 31 5 Speed Setting Std 826 936 1248 1304 Hi Static 1233 1233 1396
64. 535 2 40 2130 2100 1398 1 93 1715 1457 2 14 1901 1512 2 35 2091 2200 1430 2 09 1858 1488 2 31 2052 2300 1462 2 27 2012 2400 2500 2600 2700 2800 2900 3000 NOTES LEGEND 2 Maximum continuous bhp is 2 40 3 See general fan performance notes 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 1120 to 1585 rpm All other rpms require field supplied drive 40 Table 23 Performance 551B 072 Vertical Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AC 02 04 0 6 0 8 10 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1800 907 0 63 558 1006 0 80 708 1092 0 97 860 1169 1 14 1015 1239 1 32 1174 1900 945 0 72 638 1042 0 90 796 1126 1 08 956 1201 1 26 1119 1271 1 45 1285 2000 984 0 82 727 1078 1 00 892 1160 1 19 1060 1235 1 39 1230 1303 1 58 1403 2100 1024 0 93 823 1115 1 12 997 1195 1 32 1173 1268 1 52 1350 1335 1 72 1531 2200 1063 1 05 929 1152 1 25 1111 1230 1 46 1294 1302 1 67 1480 1368 1 88 1668 2300 1103 1 18 1044 1189 1 39 1234 1266 1 60 1425 1337 1 82 1618 1402 2 04 1814 2400 1143 1 32 1168 1227 1 54 1367 1302 1 76 1566 1371 1 99 1767 1435 2 22 1970 2500 1183 1 47 1303 1265 1 70 1510 1339 1
65. 551 036 072 551 024 060 SINGLE PACKAGE ROOFTOP ELECTRIC COOLING UNITS WITH OPTIONAL ELECTRIC HEAT Installation Instructions TABLE OF CONTENTS Page SAFETY CONSIDERATIONS 1 INSTALLATION ee lb RI Ee 1 Step 1 Provide Unit Support 2 ROOF CURB e E WARE 2 SLAB MOUNT Horizontal Units Only 2 ALTERNATE UNIT SUPPORT 2 Step 2 Field Fabricate Ductwork 2 Step 3 Install External Trap for Condensate Drain 2 Step 4 Rig and Place Unit 2 POSITIONING obese parentat 4 Step 5 Make Electrical Connections 8 FIELD POWER SUPPLY 8 FIELD CONTROL 8 HEAT ANTICIPATOR SETTINGS 8 Step 6 Adjust Factory Installed Options 22 PERFECT HUMIDITY ADAPTIVE DEHUMIDIFICATION SYSTEM 22 DISCONNECT SWITCH 22 MANUAL OUTDOOR AIR DAMPER 22 CONVENIENCE OUTLET 22 OPTIONAL ECONOMISER IV 24 ECONOMISER IV STANDARD SENSORS 25 ECONOMISER IV CONTROL MODES 26 Step 7 Adjust Evaporator Fan Speed 31 PRE START UP he deck 48 SIARTISUP en4ee re Det ee p dus 48 SERVICE 2 ss ego a e ere ehh ach ER ee Roh 50 TROUBLESHOOTING
66. 6 1200 666 0 25 252 778 0 36 361 873 0 48 476 956 0 60 594 1031 0 72 718 1300 701 0 30 300 809 0 42 418 902 0 54 540 983 0 67 665 1057 0 80 796 1400 737 0 36 355 842 0 48 481 932 0 61 610 1012 0 75 744 1085 0 89 881 1500 774 0 42 417 875 0 55 551 962 0 69 689 1041 0 83 830 1112 0 98 974 EXTERNAL STATIC PRESSURE in wg AIRFLOW 1 2 14 1 6 1 8 2 0 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 1029 0 63 630 1095 0 75 742 1157 0 86 859 1216 0 99 980 1272 1 11 1105 1000 1052 0 70 695 1118 0 82 814 1179 0 94 937 1237 1 07 1064 1293 1 20 1195 1100 1076 0 77 767 1141 0 90 892 1202 1 03 1021 1260 1 16 1154 1314 1 30 1291 1200 1100 0 85 845 1165 0 98 977 1225 1 12 1112 1282 1 26 1252 1337 1 40 1395 1300 1126 0 94 930 1189 1 07 1069 1249 1 22 1211 1306 1 36 1856 1360 1 51 1506 1400 1152 1 03 1023 1215 117 1168 1274 1 32 1317 1330 1 48 1469 1384 1 63 1625 1500 1179 1 13 1123 1241 1 28 1275 1300 1 44 1431 1355 1 60 1590 1408 1 76 1752 NOTES LEGEND 1 Bold cells indicate field supplied drive is required 2 Maximum continuous bhp is 1 20 3 See general fan performance notes Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 680 to 1044 rpm All other roms require field supplied drive 35 5518 Table 17 Performance 551B 048 551C 048 Vertical Discharge Units
67. 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1500 1188 1 09 970 1261 1 29 1143 1600 1208 1 16 1033 1700 1229 1 24 1103 1800 1900 2000 2100 2200 2300 2400 2500 NOTES LEGEND 2 Maximum continuous bhp is 1 30 3 See general fan performance notes 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 1035 to 1460 rpm All other rpms require field supplied drive 44 Table 30 Fan Performance 551 060 551 060 Three Phase Horizontal Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AS 02 0 4 0 6 0 8 10 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1500 724 0 33 295 837 0 45 402 937 0 59 524 1028 0 74 660 1111 0 91 808 1600 757 0 39 343 866 0 51 455 962 0 65 580 1050 0 81 719 1132 0 98 870 1700 790 0 45 398 894 0 58 514 988 0 72 643 1074 0 88 784 1154 1 06 938 1800 823 0 52 458 924 0 65 579 1015 0 80 712 1099 0 96 857 1177 114 1013 1900 857 0 59 525 955 0 73 650 1043 0 89 787 1125 1 05 936 1201 1 23 1096 2000 892 0 67 599 986 0 82 729 1072 0 98 870 1151 115 1022 1226 1 33 1185 2100 927 0 77 680 1017 0 92 815 1101 1 08 960 1178 1 26 1116 1251 1 44 1283 2200 962 0 87 769 1050 1 02 909 1131 1
68. 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 1029 0 63 630 1095 0 75 742 1157 0 86 859 1216 0 99 980 1272 1 11 1105 1000 1052 0 70 695 1118 0 82 814 1179 0 94 937 1237 1 07 1064 1293 1 20 1195 1100 1076 0 77 767 1141 0 90 892 1202 1 03 1021 1260 1 16 1154 1200 1100 0 85 845 1165 0 98 977 1225 1 12 1112 1300 1126 0 94 930 1189 1 07 1069 1400 1152 1 03 1023 1215 1 17 1168 1500 1179 1 13 1123 NOTES LEGEND 1 Bold cells indicate field supplied drive is required 2 Maximum continuous bhp is 1 20 3 See general fan performance notes Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 680 to 1044 rpm other rpms require field supplied drive Table 16 Performance 551B 036 551C 036 Vertical Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg MES 02 0 4 0 6 0 8 1 0 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 566 0 14 142 690 0 23 228 791 0 32 320 879 0 42 418 957 0 52 522 1000 598 0 17 173 718 0 27 267 817 0 37 366 903 0 47 471 981 0 58 581 1100 632 0 21 210 748 0 31 311 844 0 42 418 929 0 53 530 1006 0 65 64
69. 63 1 99 1766 1520 2 21 1964 1800 1306 1 48 1318 1370 1 69 1497 1431 1 90 1683 1489 2 11 1877 1545 2 34 2078 1900 1335 1 61 1426 1398 1 81 1609 1458 2 03 1799 1515 2 25 1997 1570 2 48 2202 2000 1364 1 74 1542 1427 1 95 1730 1486 2 17 1925 1542 2 39 2126 1596 2 63 2335 2100 1395 1 88 1668 1456 2 09 1860 1514 2 32 2060 1570 2 55 2265 1623 2 79 2478 2200 1426 2 03 1804 1486 2 25 2001 1543 2 48 2204 1598 2 72 2415 2300 1457 2 19 1949 1516 2 42 2151 1573 2 66 2360 1627 2 90 2574 TA 2400 1489 2 37 2106 1547 2 60 2312 1603 2 84 2526 2500 1522 2 56 2272 1579 2 80 2484 NOTES LEGEND 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower 2 Maximum continuous bhp is 2 90 Watts Input Watts to Motor 3 See general fan performance notes Motor drive range 1300 to 1685 rpm All other rpms require field supplied drive 39 Table 22 Fan Performance 551B 072 Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg
70. 8 2 9 AI 93 1u3AAI LINN 015 LINN 29199 suoisuaumnq HUN aseg 090 220 2155 6 314 915909 31VSN3Q0NOD 015 3 3015 1 919 aiv Nddns dO 1928591 91 61 L 532 14 8 411 161 JOUVHOSIG 431138 OIu13WOuvg XIV VIO 2 0 tn ug 2 a 51015 92081 803 WI1NOZIYOH ONINIdO 1015100 114405 4 4 1971061 8 L 11 01 YIG TINVd 59399 1V3H 21812313 ONY 83 018 800081 9818340 uv 1572659 91711 1 2 11083 3015 1331 AMS 27 ME 5 a 0 499 Cr C TANVd LINN 10 W01108 IS viv 91 6 1102 835830802 5831113 318 504510 13Nvd 55322 831113 1SnVHX3 83004 M 83 WONO21 TWO ILU3A 1 91 1 0 0 1275011 91 1 0 1977121 01 0 ret 1 0 121811 1176 vl 911 L 91 6 18 91 8 0 LO aN 81 9171 lt 0 11083 ri 2 838802 16 798 91 1 0 01 2 NOI1V201 12384802510 1 21812313 29 91 6 L 9 19191 Vll 0 2 AINO 2313 18VH2 83404 01108 335 0 838402 18611 91 1 6 0 719 1 8 Nv
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72. 911 1528 2 36 2100 551 2100 1320 1 67 1483 1382 1 87 1662 1441 2 08 1845 1498 2 29 2034 1552 251 2227 2200 1346 1 80 1598 1408 2 01 1782 1466 2 22 1971 1522 2 44 2165 1575 2 66 2363 2300 1372 1 94 1721 1434 2 15 1911 1491 2 37 2105 1547 2 59 2304 1600 2 82 2507 2400 1400 2 09 1852 1460 2 31 2047 1517 2 53 2247 1572 2 76 2451 2500 1427 2 24 1992 1487 2 47 2192 1543 2 70 2398 2600 1455 2 41 2140 1514 2 64 2346 1570 2 88 2557 2700 1483 2 59 2297 1541 2 83 2509 2800 1512 2 77 2463 2900 1541 2 97 2640 3000 NOTES LEGEND 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower 2 Maximum continuous bhp is 2 90 Watts Input Watts to Motor 3 See general fan performance notes Motor drive range 1300 to 1685 rpm All other rpms require field supplied drive 47 5518 PRE START UP WARNING FIRE EXPLOSION ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury death and or property damage 1 Follow recognized safety practices and wear protective goggles when checking or servicing a refrigerant system Do not operate the compressor or provide any electric power to the unit unless the compressor terminal cover is in place and secured Do not remove the compressor termina
73. 93 1717 1406 2 17 1926 1470 2 41 2136 2600 1224 1 63 1448 1303 1 87 1663 1375 2 12 1878 1442 2 36 2095 1504 2 60 2313 2700 1264 1 81 1604 1342 2 06 1828 1412 2 31 2051 1478 2 56 2275 1539 2 82 2501 2800 1305 1 99 1772 1381 2 26 2003 1450 2 52 2235 1514 2 78 2467 2900 1346 2 20 1951 1420 2 47 2191 1488 2 74 2431 3000 1387 2 41 2142 1459 2 69 2391 AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 1 2 1 4 1 6 18 20 Bhp Watts Rpm Bhp Watts Bhp Watts Bhp Watts Rpm Bhp Watts 551B C 1800 1304 1 51 1337 1365 1 69 1503 1422 1 88 1674 1477 2 08 1848 1528 2 28 2025 1900 1335 1 64 1454 1395 1 83 1627 1452 2 03 1804 1506 2 23 1984 1557 2 44 2168 2000 1366 1 78 1580 1426 1 98 1760 1482 2 19 1943 1535 2 40 2130 1586 2 61 2319 2100 1398 1 93 1715 1457 2 14 1901 1512 2 35 2091 1565 2 57 2284 1616 2 79 2481 2200 1430 2 09 1858 1488 2 31 2052 1543 2 53 2249 1596 2 76 2449 2300 1462 2 27 2012 1520 2 49 2212 1574 2 72 2416 2400 1495 2 45 2175 1552 2 68 2383 2500 1529 2 64 2349 1585 2 89 2564 2600 1562 2 85 2533 2700 2800 2900 3000 NOTES LEGEND 1 Bold cells ind
74. Bhp Watts Rpm Bhp Watts 1500 790 0 40 353 897 0 53 471 991 0 68 600 1075 0 83 739 1152 1 00 888 1600 828 0 46 412 931 0 60 536 1022 0 75 670 1104 0 92 813 1180 1 09 966 1700 866 0 54 478 966 0 68 608 1054 0 84 747 1134 1 01 895 1208 1 19 1053 1800 905 0 62 551 1001 0 77 687 1087 0 94 832 1165 1 11 985 1238 1 29 1148 1900 944 O 71 633 1037 0 87 774 1120 1 04 925 1197 1 22 1084 1268 1 41 1251 2000 983 0 81 723 1073 0 98 870 1154 1 16 1026 1229 1 34 1190 1299 1 53 1362 2100 1023 0 92 821 1110 1 10 975 1189 1 28 1137 1262 1 47 1306 1330 1 67 1483 2200 1063 1 05 929 1147 1 23 1089 1224 1 41 1256 1295 1 61 1431 1362 1 82 1614 2300 1104 1 18 1046 1185 1 37 1212 1260 1 56 1386 1329 1 76 1567 1395 1 98 1754 2400 1145 1 32 1174 1223 1 52 1346 1296 1 72 1526 1364 1 93 1712 1428 2 15 1905 2500 1185 1 48 1311 1262 1 68 1490 1333 1 89 1676 1399 2 10 1868 1462 2 33 2067 EXTERNAL STATIC PRESSURE wg 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW CFM 551B C 1500 1224 1 18 1045 1291 1 36 1212 1354 1 56 1387 1414 1 77 1570 1472 1 98 1761 1600 1250 1 27 1128 1316 1 46 1299 1379 1 66 1478 1438 1 87 1664 1495 2 09 1858 1700 1278 1 37 1219 1343 1 57 1394 1405 1 77 1576 14
75. DTSS eBJed PONPA Ser 16 vel veh 95 16 02 108 709 655 cec vece 2 1 86 200 200 vel veh Le 6 St 0b etv o6c 92 612 96 64 00 9 ov 07 795 656 602 L8L 08 69 500 vel veh 0 82 6 gezez 991 98 83 6 200 8 9 vor EA Sah vel veh Sz 06 06 Sz Ge FOL z 6 100 vel veh 06 06 v Sc 52 4 01 021 1s Sb 09 05 99 68 201 86 200 200 01 021 96 2 ov SBOE 96 64 v00 021 16 82 ge S 755 662 602 18 08 69 500 021 06 0 892 22 991 98 83 6 200 8 20 et 50 eo ON 021 61 61 Sz SoZ V 6k 9 01 2 6 100 01 02 61 61 761 61 m 66 96 55 05 09 09 z69 8z9 G86 Vt 201 86 200 200 09620201800 96 96 Ov 98 St 92 612 96 64 00 56 96 ge c ov c ece 60 081 08 99 500 56 96 62 22 0 06 84 991 98 89 60 200 ev 9 e a Sah 56 96 06 102 901 z 6 100 96 96 vz os 0 S ve suoi 06 06 0S vv 09 09 996 555 201 86 200 200 980 06 06 ov 246 866 92 612 96 64 00 06 06 os 92 S 0 eze eez 60 081 08 99 500 06 06 v
76. Demand Controlled Ventilation and Power Exhaust To check DCV and Power Exhaust 1 Make sure IV preparation procedure has been performed 2 Ensure terminals AO and 1 are open The LED for both DCV and Exhaust should be off The actuator should be fully closed 3 Connect 9 v battery to AQ positive node and 1 negative node The LED for both DCV and Exhaust should turn on The actuator should drive to between 90 and 95 open 4 Turn the Exhaust potentiometer CW until the Exhaust LED turns off The LED should turn off when the potentiometer is approximately 90 The actuator should remain in position 5 Turn the DCV set point potentiometer CW until the DCV LED turns off The DCV LED should turn off when the potentiometer is approximately 9 v The actuator should drive fully closed 6 Turn the DCV and Exhaust potentiometers CCW until the Exhaust LED turns on The exhaust contacts will close 30 to 120 seconds after the Exhaust LED turns on 7 Return EconoMi er IV settings and wiring to normal after completing troubleshooting DCV Minimum and Maximum Position To check the DCV minimum and maximum position 1 Make sure IV preparation procedure has been performed 2 Connect 9 v battery to AQ positive node 1 negative node The DCV LED should turn on The actuator should drive to between 90 and 95 open 3 Turn the DCV Maximum Position potentiometer to midpoint
77. Dry Bulb Control For differential dry bulb control the standard outdoor dry bulb sensor is used in conjunction with an additional accessory dry bulb sensor part number CRTEMPSN002A00 The accessory sensor must be mounted in the return airstream See Fig 35 Wiring is provided in the EconoMi er IV wiring harness See Fig 27 In this mode of operation the outdoor air temperature is compared to the return air temperature and the lower temperature airstream is used for cooling When using this mode of changeover control turn the enthalpy setpoint potentiometer fully clockwise to the D setting See Fig 33 FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD SUPPLIED TIME CLOCK PNK VIO BLK BLK AT TEMP ENTHALPY SENSOR B ECONOMIZER MOTOR FIELD M TRAY TRI Kean W m TS BLK 2V 10 pa 4 IREWOTE POT 135 Ohm i ECONOMISER IV 24 RED aif e BOARD 4 Di ou cl 0 1 PoS 2 04 3 PL6 R lt M FOR STD UNIT OPEN e aac hae MAX FIELD INSTALLED Tag 5 SENSOR NC Wn on Qf i 20 P ai H ML NOT Ustp 11 Ds e 5 lt 50 J l sold Tov S jk
78. EANABLE ALUMINUM FILTER BAROMETRIC RELIEF FILTER CLIP C06027 Fig 26 Filter Installation The temperature sensor looks like an eyelet terminal with wires running to it The sensor is located in the crimp end and is sealed from moisture Outdoor Air Lockout Sensor The EconoMi er IV is equipped with an ambient temperature lockout switch located in the outdoor air stream which is used to lockout the compressors below a 42 F ambient temperature See Fig 21 25 551B C 5518 EconoMi er IV Control Modes Determine the EconoMi er IV control mode before set up of the control Some modes of operation may require different sensors See Table 6 The EconoMi er IV is supplied from the factory with a supply air temperature sensor and an outdoor air temperature sensor This allows for operation of the EconoMiSer IV with outdoor air dry bulb changeover control Additional accessories can be added to allow for different types of changeover control and operation of the EconoMi er IV and unit Table 6 EconoMi er IV Sensor Usage ECONOMISER IV WITH OUTDOOR AIR APPLICATION DRY BULB SENSOR Accessories Required Outdoor Air None The outdoor air dry bulb sensor Dry Bulb is factory installed pri CRTEMPSNO002A00 Single Enthalpy 57 078 Diff HH57AC078 ifferential Enthalpy and CRENTDIF004A00 CO for DCV Control using a Wall Mounted 33ZCSENCO2 Sensor CO2 tor DCV
79. FM Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 551B C 1500 1224 1 18 1045 1291 1 36 1212 1354 1 56 1387 1414 1 77 1570 1472 1 98 1761 1600 1250 1 27 1128 1316 1 46 1299 1379 1 66 1478 1438 1 87 1664 1495 2 09 1858 1700 1278 1 37 1219 1343 1 57 1394 1405 1 77 1576 1463 1 99 1766 1520 2 21 1964 1800 1306 1 48 1318 1370 1 69 1497 1431 1 90 1683 1489 2 11 1877 1545 2 34 2078 1900 1335 1 61 1426 1398 1 81 1609 1458 2 03 1799 1515 2 25 1997 2000 1364 1 74 1542 1427 1 95 1730 1486 2 17 1925 1542 2 39 2126 2100 1395 1 88 1668 1456 2 09 1860 1514 2 32 2060 2200 1426 2 03 1804 1486 225 2001 2300 1457 2 19 1949 2400 1489 2 37 2106 2500 NOTES LEGEND 1 Bold cells indicate field supplied drive is required Bhp Brake Horsepower 2 Maximum continuous bhp is 2 40 Watts Input Watts to Motor 3 See general fan performance notes Motor drive range 1035 to 1460 rpm All other rpms require field supplied drive 38 Table 21 Performance 551B 060 551C 060 Vertical Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg ARETON 0 2 0 4 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm
80. GE LPS LOW PRESSURE SWITCH EQUALIZER I INP iLICUID LINE SOLENOID VALVE C06137 Fig 44 Perfect Humidity Hot Gas Reheat Mode Operation Hot Gas Reheat Mode When the humidity levels in the space require humidity control a hot gas solenoid valve specific to hot gas reheat mode only will open to bypass a portion of hot gas refrigerant around the condenser coil See Fig 44 This hot gas will mix with liquid refrigerant leaving the condenser coil and flow to the subcooling reheat dehumidification coil Now the conditioned air coming off the evaporator will be cooled and dehumidified but will be warmed to neutral conditions 72 F to 75 F by the subcooling reheat dehumidification coil The net effect of the rooftop when in hot gas reheat mode is to provide nearly all latent capacity removal from the space when sensible loads diminish when outdoor temperature conditions are moderate When in hot gas reheat mode the unit will operate to provide mostly latent capacity and extremely low sensible heat ratio capability Similar to the subcooling mode of operation hot gas reheat mode operates only when the outside air temperature is warmer than 40 F Below this temperature a factory installed outside air temperature switch will lockout this mode of operation See Table 34 for the Perfect Humidity adaptive dehumidification System sequence of operation SERVICE 4 WARNING ELECTRICAL SHOCK HAZARD Failur
81. N TR vi e Br eor NON ez 90 oes 269 sis N SH 09 8 9 9 090 19 GL 9L 3NON i 1 S3A ii Sr SNON 90 oes zeg gis on ais voL LY 08 Voe vec 600 800 0 01 0 8 0 22 112 800 800 0 01 092 00 282 8 94 621 00 600 0 01 22 0 9 0L 00 800 da 80 oos s03 di 0 01 021 0 02 v4 24 55 007900 001 021 0 02 3NON 201 8 Sy vez 600 800 0201 096 00 88 112 Liz 8007800 0201 00 sz 8 94 621 00 600 WEB 005 Sai 5 ve 80 004 ve 809 0201 ooz Lvl 22 lt lt 00900 0101 0 02 3NON s 56 Sb vb 600800 90926709F 090 0 26 04 0 ziv 112 800 800 0 26 062 00 115 8 94 621 00 600 255 Uis bes oes a Sci 5 92 80 00 ve 809 viv SJA 0 26 091 0 02 991 22 55 00v900 0 6 091 2 991 3NON us 26 8 Sy vez 600 800 026 ose 00 97 112 Liz 800 800 026 22 0 eve 8 94 621 00 600 E ss Sol Svedo 92 80 00 ve 809 viv ON 026 ooz 22 gg 00v900 026 ooz 3NON 008 vul vid 490 vid 1000y Vua vid ALO vul viu ALO UM uno ATHE H3IV3HHO JORNVH ANOD Wal TVNIWON JINn 3ZIS LO3NNOOSIG KlddfiS 31419773 HOOGLnO dossaddmwoo SOVON 28166 4009
82. NS 3116100 2 0 91 6 2 0 pyl i 17 37001 1875111 1378531 3 91 5 91 6 0 VI 8 0 5 0 51015 YONYL 403 5 i m 9 9 QOR cs Z ZZ EE 8 8 8 0 8 4 0 0 l 9 Loe LINA 30 HN nel 01108 715 1 8 1 1ddn5 8 4 Lt 0l ZZ 19107 N U TANVd 91 9 5 1 I IuOH SS302Y 1 3 21812313 QNY it jj 9NIN3dO 838018 80104 NOOQNI 1102 Y3SN3GNO9 ulv 9 259 Nanl3d lt L d 10H1NOO 8431114 378 508510 S5329V ou 1798 28 JSWHX HSHOd 0262 sg 0 0 Z281 01 2 31 54 57 0 10 001 NON0I 91 1 0 01 0 81 5 6 1 91 11 296 E 193NNO2510 181 908 918 1 11 WID Cd e 2 0 12 91 6 0 81 1 07 91 1 6 0 oss aS 0 YINY09 8 18 9 L 1 0 01108 335 tee t 1 8 1 91 2 57 0 NVd36V8 NI 35V8 JHL 30 01108 3Hl 9NIN3d0 NIVHA 041 2 1 9 l SI ALIAYHO JO 3Hl 78 31VSN30NO2 LAV Wangan YIH3IYN 9NIdaA09 4009 2 UO a 66910 COOM 10271 LSH 9NIN3d0 30VW 580014 31811508402 NO 311 15 1 38 SLINA 72 JIY 14405 5 1 7 591 ON 53810938 IONIA 91 6 2270 3
83. PRESSURE wg AES 12 14 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 1100 0 85 845 1165 0 98 977 1225 1 12 1112 1282 1 26 1252 1337 1 40 1395 1300 1126 0 94 930 1189 1 07 1069 1249 1 22 1211 1306 1 36 1356 1360 1 51 1506 1400 1152 1 03 1023 1215 1 17 1168 1274 1 32 1317 1330 1 48 1469 1384 1 63 1625 1500 1179 1 13 1123 1241 1 28 1275 1300 1 44 1431 1355 1 60 1590 1408 1 76 1752 1600 1206 1 24 1231 1268 1 40 1391 1326 1 56 1553 1381 1 73 1719 1433 1 90 1888 1700 1235 1 36 1349 1295 1 52 1515 1352 1 69 1685 1407 1 87 1858 1459 2 04 2034 1800 1264 1 48 1475 1323 1 66 1649 1380 1 84 1826 1434 2 02 2006 1485 2 20 2189 1900 1293 1 62 1611 1352 1 80 1792 1408 1 99 1976 1461 2 17 2163 1512 2 37 2353 2000 1324 1 77 1756 1381 1 96 1945 1436 2 15 2137 1489 2 34 2332 NOTES LEGEND du Bold cells indicate field supplied drive is required 2 Maximum continuous bhp is 2 40 3 See general fan performance notes Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 1075 to 1455 rpm All other rpms require field supplied drive 36 Table 19 Fan Performance 551B 060 551 060 Single Phase Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AS 02 0 4 0 6 0 8 1 0 Bhp Watts Rpm Bhp
84. R INDOOR COIL COIL ACCESS ACCESS PANEL PANEL C06025 Fig 24 Indoor Coil Access Panel Relocation INDOOR COIL ACCESS PANEL HOOD DIVIDER C06026 Fig 25 Outdoor Air Hood Construction EconoMi er IV Standard Sensors Outdoor Air Temperature OAT Sensor The outdoor air temperature sensor 57 074 is a 10 to 20 mA device used to measure the outdoor air temperature The outdoor air temperature is used to determine when the EconoMi er IV can be used for free cooling The sensor is factory installed on the EconoMi er IV in the outdoor airstream See Fig 21 The operating range of temperature measurement is 40 to 100 F Supply Air Temperature SAT Sensor The supply air temperature sensor is a 3k ohm thermistor located at the inlet of the indoor fan See Fig 32 This sensor is factory installed The operating range of temperature measurement is 0 to 158 See Table 5 for sensor temperature resistance values Table 5 Supply Air Sensor Temperature Resistance Values TEMPERATURE F RESISTANCE ohms 58 200 250 40 100 680 22 53 010 4 29 091 14 16 590 32 9 795 50 5 970 68 3 747 77 3 000 86 2 416 104 1 597 122 1 080 140 746 158 525 176 376 185 321 194 274 212 203 230 153 248 116 257 102 266 89 284 70 302 55 17 1 4 DIVIDER OUTSIDE AIR CL
85. S A Edition Date 3 07 Catalog No 5 36 1 anuiacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Replaces Il 5518 36 6
86. SSURE in wg CFM 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 1089 0 84 835 1153 0 98 971 1212 1 42 1111 1300 1114 0 92 915 1177 1 06 1056 1400 1139 1 01 1000 1202 1 15 1149 1500 1164 1 10 1093 1600 1190 1 20 1193 1700 1800 1900 2000 NOTES LEGEND 1 Bold cells indicate field supplied drive is required 2 Maximum continuous bhp is 1 20 3 See general fan performance notes Bhp Brake Horsepower Watts Input Watts to Motor Motor drive range 770 to 1185 rpm All other roms require field supplied drive Table 28 Fan Performance 551B 048 551C 048 Horizontal Discharge Units High Static Motor Belt Drive AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 0 2 0 4 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1200 643 0 23 233 762 0 35 344 860 0 46 459 944 0 58 579 1020 0 71 705 1300 674 0 28 276 791 0 40 395 887 0 52 517 970 0 65 645 1045 0 78 777 1400 706 0 33 324 820 0 45 451 914 0 59 582 997 0 72 717 1071 0 86 857 1500 738 0 38 379 849 0 52 515 942 0 66 653 1024 0 80 796 1097 0 95 942 1600 771 0 44 440 879 0 59 584 971 0 74 731 1051 0 89 881 1124 1 04 1035 1700 804 0 51 507 910
87. T MOTOR PULLEY TURNS OPEN 0 1 2 1 11 2 2 21 3 3 31 2 415 5 51 2 6 036 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 048 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 060 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 072 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 Approximate fan rpm shown high static motor drive 32 Table 10 Evaporator Fan Motor Data Standard Motor UNIT UNIT MAXIMUM MAXIMUM MAXIMUM 22i CONTINUOUS OPERATING WATTS UNIT VOLTAGE AMP DRAW 024 ALL 0 58 580 2 0 75 0 Single 1 20 1000 208 230 4 9 208 230 4 9 Three 1 20 1000 460 2 2 575 2 2 Single 120 1000 208 230 4 9 048 208 230 4 9 Three 1 20 1000 460 2 2 575 2 2 Single 130 1455 208 230 70 208 230 6 7 Three 2 40 2120 460 3 0 575 3 0 208 230 6 7 072 Three 2 40 2120 460 3 0 575 3 0 LEGEND Bhp Brake Horsepower Extensive motor electrical testing on these units ensures that the horsepower and watts range of the motors be utilized with confidence Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure Unit warranty will not be affected Table 11 Evaporator Fan Motor Data High Static Motors
88. The actuator should drive to between 20 and 8095 open 4 Turn the DCV Maximum Position potentiometer to fully CCW The actuator should drive fully closed 5 Turn the Minimum Position potentiometer to midpoint The actuator should drive to between 20 and 80 open 6 Turn the Minimum Position Potentiometer fully CW The actuator should drive fully open 7 Remove the jumper from TR and N The actuator should drive fully closed 8 Return EconoMi er IV settings and wiring to normal after completing troubleshooting Supply Air Input To check supply air input 1 Make sure IV preparation procedure has been performed 2 Set the Enthalpy potentiometer to A The Free Cool LED turns on The actuator should drive to between 20 and 8095 open 3 Remove the 5 6 kilo ohm resistor and jumper T to T1 The actuator should drive fully open 4 Remove the jumper across T and T1 The actuator should drive fully closed 5 Return EconoMi er IV settings and wiring to normal after completing troubleshooting 57 551 5518 EconoMi er IV Troubleshooting Completion 6 Remove 1 2 kilo ohm checkout resistor from terminals So This procedure is used to return the EconoMi er IV to operation and If used reconnect sensor from terminals So and No troubleshooting or testing is done by performing the 7 Remove jumper from TR to N following procedure 1 Disconnect power at TR and 2 Set enthalpy
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90. ak Leak test all refrigerant tubing connections using electronic leak detector halide torch or liquid soap solution c Inspect all field wiring and factory wiring connections Besure that connections are completed and tight Be sure that wires are not in contact with refrigerant tubing or sharp edges d Inspect coil fins If damaged during shipping and handling carefully straighten fins with a fin comb 4 Verify the following conditions a Make sure that condenser fan blade are correctly positioned in fan orifice See Condenser Fan Adjustment Section for more details b Make sure that air filter s is in place c Make sure that condensate drain trap is filled with water to ensure proper drainage d Make sure that all tools and miscellaneous loose parts have been removed START UP Unit Preparation Make sure that the unit has been installed in accordance with installation instructions and applicable codes Return Air Filters Make sure the correct filters are installed in the unit See Table 1 Do not operate the unit without return air filters Outdoor Air Inlet Screens Outdoor air inlet screen s must be in place before operating the unit Compressor Mounting Compressors are internally spring mounted Do not loosen or remove the compressor holddown bolts Internal Wiring Check all electrical connections in unit control boxes tighten them as required Refrigerant Service Ports Each unit system has
91. ctory Installed Option The static pressure must be added to external static pressure The sum and the indoor entering air cfm should be used in conjunction with the Fan Performance tables to determine indoor blower rpm and watts 33 551B C 5518 Table 14 Evaporator Fan Motor Efficiency MOTOR 551B EFFICIENCY 024 036 048 75 060 74 84 072 84 Single phase 3 phase NOTE Convert watts to bhp using the following formula bhp watts input x motor efficienc 746 information GENERAL FAN PERFORMANCE NOTES See Table 10 and 11 on this page for additional information Interpolation is permissible Do not extrapolate Performance includes clean filter and wet coil Use of a field supplied motor may affect wire sizing Contact your Bryant representative to verify Values include losses for filters unit casing and wet coils See Table 12 and 13 and Fig 36 for accessory FIOP static pressure Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence Using the fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure Unit warranty will not be affected Table 14 Fan Performance 551C 024 Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg 0 1 0 2 0 4 0
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93. d be open 2 Disconnect device at P and P1 4 Disconnect wires at and T1 Place 5 6 kilo ohm resistor across T and T1 5 Jumper TR to 1 6 Jumper TR to N 7 If connected remove sensor from terminals So and Connect 1 2 kilo ohm 4074EJM checkout resistor across terminals So and 4 8 Put 620 ohm resistor across terminals Sg and 9 Set minimum position DCV set point and exhaust potentiometers fully CCW counterclockwise 10 Set DCV maximum position potentiometer fully CW clockwise 11 Set enthalpy potentiometer to D 12 Apply power 24 vac to terminals TR and Differential Enthalpy To check differential enthalpy 1 Make sure IV preparation procedure has been performed 2 Place 620 ohm resistor across So and 3 Place 1 2 kilo ohm resistor across Sg and The Free Cool LED should be lit 4 Remove 620 ohm resistor across So and The Free Cool LED should turn off 5 Return EconoMi er IV settings and wiring to normal after completing troubleshooting Single Enthalpy To check single enthalpy 1 Make sure IV preparation procedure has been performed 2 Set the enthalpy potentiometer to A fully CCW The Free Cool LED should be lit 3 Set the enthalpy potentiometer to D fully CW The Free Cool LED should turn off 4 Return EconoMi er IV settings and wiring to normal after completing troubleshooting DCV
94. de is desired install a field supplied timeclock function in place of the jumper between TR and N See Fig 27 When the timeclock contacts are closed the EconoMi er IV control will be in occupied mode When the timeclock contacts are open removing the 24 v signal from terminal the EconoMi er IV will be in unoccupied mode Demand Controlled Ventilation DCV When using the IV for demand controlled ventilation there are some equipment selection criteria which should be considered When selecting the heat capacity and cool capacity of the equipment the maximum ventilation rate must be evaluated for design conditions The maximum damper position must be calculated to provide the desired fresh air Typically the maximum ventilation rate will be about 5 to 1096 more than the typical cfm required per person using normal outside air design criteria 29 5518 5518 A proportional anticipatory strategy should be taken with the following conditions a zone with a large area varied occupancy and equipment that cannot exceed the required ventilation rate at design conditions Exceeding the required ventilation rate means the equipment can condition air at a maximum ventilation rate that is greater than the required ventilation rate for maximum occupancy proportional anticipatory strategy will cause the fresh air supplied to increase as the room level increases even though the CO set point has
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96. e between high voltage and low voltage wiring 3 Use a wire nut to connect humidistat cable into low voltage wiring as shown in Fig 15 To install Thermidistat device 1 Route Thermidistat cable through hole provided in unit control box 2 Some models may be equipped with a raceway built into the corner post on the left side of control box See Fig 12 This raceway provides the required clearance between high voltage and low voltage wiring For models without raceway ensure to provide the NEC required clearance between high voltage and low voltage wiring 3 A field supplied relay must be installed between the thermidistat and Perfect Humidity circuit recommended relay HN61KK324 See Fig 16 The relay coil is connected between the DEHUM output and C common of the unit The relay controls the Perfect Humidity solenoid valve and must be wired between the Perfect Humidity fuse and the low pressure switch Refer to the installation instructions included with the Bryant Light Commercial Thermidistat device for more information Disconnect Switch The optional disconnect switch is non fused The switch has the capability of being locked in place for safety purposes Manual Outdoor Damper The outdoor air hood and screen are attached to the basepan at the bottom of the unit for shipping Assembly 1 Determine quantity of ventilation required for building Record amount for use in Step 8 2 Remove and save
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98. e required by the subcooling reheat coil When in subcooling mode there is a slight decrease in system total gross capacity 5 less a lower gross sensible capacity 20 less and a greatly increased latent capacity up to 40 more COIL CLOSED GAS SOLENOID VALVE DISCHARGE OUTDOOR AIR E CRANKCASE rFATFR COMPRESSOR FIXED RESTRICTOR ACUTROL DEVICE LPS LOW PRESSURE SWITCH SUECOOLING RE HEAT DEHUMIDIFICATION Sucrion COIL EQUALIZER ENP OPEN LINE SOLENDIO VALVE C06135 Fig 42 Perfect Humidity Normal Design Cooling Operation CONDENSER COIL a p HGSY HOT GAS SOLENOID VALVE 4 d DISSHARGE eL OUTDOOR AIR SUBCOOLING RE HEAT DEHUMIDIFICATION COIL 7 senos CCH CRANKCASE HEATER EA COMPRESSOR FIXED RESTRICTOR ACUTROL DEVICE PS LOW PRESSURE SWITCH EQUALIZER I INP iLIQUID LINE SOLENOID VALVE 06136 Fig 43 Perfect Humidity Subcooling Mode Operation HOT GAS SOLENOID VALVE 4 OUTDOOR AIR SUBCOOLING RE HEAT _ DEHUMIDIFICATION f CCH ACRANKCASE HEATER EVAPORATOR COMPRESSOR FIXED RESTRICTOR ACUTROL DEVICE DISCHAR
99. e to follow this warning could cause personal injury or death When sevicing unit shut off all electrical power to unit and install lockout tag Step 1 Cleaning Inspect unit interior at the beginning of heating and cooling season and as operating conditions require Evaporator Coil 1 Turn unit power off tag disconnect Remove evaporator coil access panel 2 If economizer or two position damper is installed remove economizer by disconnecting Molex plug removing mounting screws 3 Slide filters out of unit 50 4 Clean coil using a commercial coil cleaner dishwasher detergent in a pressurized spray canister Wash both sides of coil and flush with clean water For best results back flush toward return air section to remove foreign material Flush condensate pan after completion 5 Reinstall economizer and filters 6 Reconnect wiring 7 Replace access panels Condenser Coil Inspect coil monthly Clean condenser coil annually and as required by location and outdoor air conditions One Row Coil Wash coil with commercial coil cleaner It is not necessary to remove top panel 2 Row Coils Clean coil as follows 1 Turn off unit power and tag disconnect 2 Remove top panel screws on condenser end of unit 3 Remove condenser coil corner post See Fig 45 To hold top panel open place coil corner post between top panel and center post See Fig 46 REMOVE REMOVE SCREWS SCREWS TOP REMOVE
100. eating and cooling operation is not adequate for the outdoor humidity level an energy recovery unit and or a dehumidification option should be considered Step 7 djust Evaporator Fan Speed Adjust evaporator fan speed to meet jobsite conditions Tables 8 and 9 show fan rpm at motor pulley settings for the 551C 024 060 and 551B 036 072 units Tables 10 and 13 show maximum amp draw of belt drive motor Table 12 shows sound data Refer to Tables 14 33 for performance data See Table 34 for accessory static pressure drop See Fig 39 for the Perfect Humidity system static pressure drops For units with electric heating required minimum cfm is 900 for 551B C 036 1200 for 551B C 048 1500 for 551B C 060 and 1800 for 551B 072 and 600 for 551C 024 Belt Drive Motors Fan motor pulleys are factory set for speed shown in Table 1 Check pulley alignment and belt tension prior to start up To change fan speed 1 Shut off the unit power supply and tag disconnect 2 Loosen the belt by loosening the fan motor mounting nuts See Fig 40 3 Loosen movable pulley flange setscrew See Fig 41 4 Screw movable flange toward fixed flange to increase speed and away from fixed flange to decrease speed Increasing fan speed increases load on motor Do not exceed maximum speed specified in Table 1 5 Set movable flange at nearest keyway of pulley hub and tighten setscrew See Table 1 for speed change for each full turn of pulley flan
101. er Determine cause Compressor Cycles Other Than Normally Satisfying Thermostat Refrigerant overcharge or undercharge Recover refrigerant evacuate system and recharge to nameplate Defective compressor Replace and determine cause Insufficient line voltage Determine cause and correct Blocked condenser Determine cause and correct Defective run start capacitor overload or start relay Determine cause and replace Defective thermostat Replace thermostat Faulty condenser fan motor or capacitor Replace Restriction in refrigerant system Locate restriction and remove Compressor Operates Continuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repair and recharge Leaking valves in compressor Replace compressor Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil or remove restriction Excessive Head Pressure Dirty air filter Replace filter Dirty condenser coil Clean coil Refrigerant overcharged Recover excess refrigerant Air in system Recover refrigerant evacuate system and recharge Condenser air restricted or air short cycling Determine cause and correct Head Pressure Too Low
102. erant Charge Amount of refrigerant charge is listed on unit nameplate also refer to Table 1 Refer to HVAC Servicing Procedures literature available at your local distributor and the following procedures Unit panels must be in place when unit is operating during charging procedure Unit must operate a minimum of 10 minutes before checking or adjusting refrigerant charge No Charge Use standard evacuating techniques After evacuating system to 500 microns weigh in the specified amount of refrigerant Refer to Table 1 and unit information plate Low Charge Cooling Using Cooling Charging Charts Fig 49 52 vary refrigerant until the conditions of the charts are met Note the charging charts are different from type normally used Charts are based on charging the units to the correct superheat for the various operating conditions Accurate pressure gauge and temperature sensing device are required Connect the pressure gauge to the service port on the suction line Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading Indoor air cfm must be within the normal operating range of the unit accurate superheat thermocouple type or thermistor type thermometer and a gauge manifold are required when using the superheat charging method for evaluating the unit charge Do not use mercury or small dial type thermometers because they are not adequate for this ty
103. es Motor drive range 1035 to 1460 rpm All other rpms require field supplied drive 37 Table 20 Fan Performance 551B 060 551C 060 Three Phase Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg ACA 02 0 4 0 6 0 8 1 0 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1500 790 0 40 353 897 0 53 471 991 0 68 600 1075 0 83 739 1152 1 00 888 1600 828 0 46 412 931 0 60 536 1022 0 75 670 1104 0 92 813 1180 1 09 966 1700 866 0 54 478 966 0 68 608 1054 0 84 747 1134 1 01 895 1208 1 19 1053 1800 905 0 62 551 1001 0 77 687 1087 0 94 832 1165 1 11 985 1238 1 29 1148 1900 944 0 71 633 1037 0 87 774 1120 1 04 925 1197 1 22 1084 1268 1 41 1251 2000 983 0 81 723 1073 0 98 870 1154 1 16 1026 1229 1 34 1190 1299 1 53 1362 2100 1023 0 92 821 1110 1 10 975 1189 1 28 1137 1262 1 47 1906 1330 1 67 1483 2200 1063 1 05 929 1147 1 23 1089 1224 1 41 1256 1295 1 61 1431 1362 1 82 1614 2300 1104 1 18 1046 1185 1 37 1212 1260 1 56 1986 1329 1 76 1567 1395 1 98 1754 2400 1145 1 32 1174 1223 1 52 1946 1296 1 72 1526 1364 1 93 1712 1428 2 15 1905 2500 1185 1 48 1311 1262 1 68 1490 1333 1 89 1676 1399 2 10 1868 1462 2 33 2067 EXTERNAL STATIC PRESSURE wg AIRFLOW 12 1 4 1 6 1 8 2 0 C
104. ess Clear and Mode buttons Hold at least 5 seconds until the sensor enters the Edit mode 2 Press Mode twice The STDSET Menu will appear 3 Use the Up Down button to select the preset number See Table 7 4 Press Enter to lock in the selection 5 Press Mode to exit and resume normal operation The custom settings of the sensor be changed anytime after the sensor is energized Follow the steps below to change the non standard settings 1 Press Clear and Mode buttons Hold at least 5 seconds until the sensor enters the Edit mode 2 Press Mode twice The STDSET Menu will appear 3 Use the Up Down button to toggle to the NONSTD menu and press Enter 4 Use the Up Down button to toggle through each of the nine variables starting with Altitude until the desired setting is reached 5 Press Mode to move through the variables 6 Press Enter to lock in the selection then press Mode to continue to the next variable 30 Dehumidification of Fresh Air with DCV Control Information from ASHRAE indicates that the largest humidity load on any zone is the fresh air introduced For some applications a device such as an energy recovery unit can be added to reduce the moisture content of the fresh air being brought into the building when the enthalpy is high In most cases the normal heating and cooling processes are more than adequate to remove the humidity loads for most commercial applications If normal rooftop h
105. g of the unit to the roof curb is critical for a watertight seal Install gasket supplied with the roof curb as shown in Fig 2 Improperly applied gasket can result in air leaks and poor unit performance Curb should be level Unit leveling tolerances are shown in Fig 3 This is necessary for unit drain to function properly Refer to Accessory Roof Curb Installation Instructions for additional information as required Slab Mount Horizontal Units Only Provide a level concrete slab that extends a minimum of 6 in beyond unit cabinet Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from obstructing airflow NOTE Horizontal units may be installed on a roof curb if required Alternate Unit Support When the curb or adapter cannot be used support unit with Sleeper rails using unit curb or adapter support area If sleeper rails cannot be used support the long sides of the unit with a minimum of 3 equally spaced 4 in x 4 in pads on each side Step 2 Field Fabricate Ductwork Secure all ducts to roof curb and building structure on vertical discharge units Do not connect ductwork to unit For horizontal applications field supplied isolation flanges should be attached to horizontal discharge openings and all ductwork should be secured to the flanges Insulate and weatherproof all external ductwork joints and roof openings with counter flashing and mastic in accordance with applicable codes
106. ge 6 Adjust belt tension and align fan and motor pulleys per guidance below NOTE Once the required flange position is determined for the correct blower rpm it is recommended but not required that the variable pitch pulley be replaced with a corresponding size fixed sheave pulley To align fan and motor pulleys 1 2 3 Loosen fan pulley setscrews Slide fan pulley along fan shaft Make angular alignment by loosening motor from mount ing To adjust belt tension 1 2 Loosen fan motor mounting nuts Slide motor mounting plate away from fan scroll for proper belt tension 1 2 deflection with 7 to 10 Ib of force Tighten motor mounting nuts Adjust bolt and tighten nut to secure motor in fixed position Table 7 Sensor Standard Settings VENTILATION ANALOG CO gt OPTIONAL RELAY SETTING EQUIPMENT OUTPUT RATE OUTPUT CONTROL RANGE RELAY 5 HYSTERESIS cfm Person ppm ppm ppm 1 Proportional Any 0 2000 1000 50 Interface w Standard 2 10V E 2 Building Control System Proportional Any 7 20 mA 0 2000 1000 50 3 Exponential Any 0 2000 1100 50 4 Proportional 15 E 0 1100 1100 50 5 Proportional 20 0 900 900 50 0 10V 6 Exponential 15 4 20 mA 0 1100 1100 50 7 Exponential 20 fuum 0 900 900 50 0 10V 8 Health amp Safety Proportional 4 20 mA 0 9999 5000 500
107. harts and the outdoor motor speed controller jumpered to run the fan at full speed IMPORTANT Refer to Troubleshooting Tables for additional information Step 6 Replacement Parts A complete list of replacement parts may be obtained from any Bryant distributor upon request 54 Suction Line Pressure psig 551C 2 TON CHARGING CHART E ios d Suction Line Temperature deg C 5 55 5 5 10 5 15 5 20 5 25 5 oy 105 0 698 0 100 0 95 0 648 0 5 o 90 0 5 5980 85 0 a 80 0 5480 3 5 75 0 5 4980 9 70 0 65 0 448 0 10 42 52 62 72 Suction Line Temp deg C06148 Fig 57 Cooling Charging Chart Standard 551C 024 F 551C 3 CHARGING CHART 115 46 105 41 95 35 Suction Line Temperature deg C us 6 1 11 1 16 1 21 1 x 648 2 o 8 8 5 598 2 9 85 0 a g 5482 3 a o 8 750 5 5 5 498 2 65 0 448 2 43 48 53 58 63 68 73 78 Suction Line deg 06149 Fig 58 Cooling Charging Chart Standard 551C 036 5518 Suction Line Pressure psig F C 551C 4 TON CHARGING CHART is a a Suction Line Temperature deg C 15 24 5 6 10 6 15 6 20 6 25 6 692 0 97 0 2 A x 642 0 5 5 o o 870 n n 592 0 2 3 5 5 5 77 0 5 542 0 2 67 0 49
108. icate field supplied drive is required Bhp Brake Horsepower 2 Maximum continuous bhp is 2 90 Watts Input Watts to Motor 3 See general fan performance notes Motor drive range 1300 to 1685 rpm All other rpms require field supplied drive Table 24 Fan Performance 551C 024 Horizontal Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg cid 0 1 0 2 0 4 0 6 0 8 1 0 Rpm Bhp Rpm Bhp Rpm Bhp Bhp Rpm Bhp 600 490 0 08 521 0 08 597 0 14 703 021 788 0 29 868 0 37 700 519 0 09 557 0 09 623 016 729 024 816 0 32 892 0 41 800 537 0 1 582 0 12 650 0 19 751 0 27 845 037 927 0 47 900 560 0 13 610 0 14 681 022 783 0 22 870 0 42 947 0 53 1000 589 0 15 640 0 16 707 026 808 036 894 0 47 971 0 58 41 5518 Table 25 Performance 551 036 551 036 Horizontal Discharge Units Standard Motor Belt Drive AIRFLOW EXTERNAL STATIC PRESSURE in wg CFM 0 2 0 4 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 900 554 0 14 134 681 0 22 222 783 0 32 316 870 0 42 416 947 0 53 523 1000 583 0 16 163 707 0 26 257 8
109. imum Low High On On Off Modulating Modulatingttt Free Cooling LED On On Off Off Off Off Off Off Off For single enthalpy control the module compares outdoor enthalpy to the ABCD set point TPower at N terminal determines Occupied Unoccupied setting 24 vac Occupied no power Unoccupied Modulation is based on the supply air sensor signal ttModulation is based on the signal Modulation is based on the greater of DCV and supply air sensor signals between minimum position and either maximum position DCV or fully open sup ply air signal tttModulation is based on the greater of DCV and supply air sensor signals between closed and either maximum position or fully open supply air sig nal 59 5518 Fig 61 EconoMi er IV Functional View 60 C06053 START UP CHECKLIST Remove and Store in Job File PRELIMINARY INFORMATION MODEL NO SERIAL NO DATE TECHNICIAN PRE START UP insert checkmark in box as each item is completed VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS
110. ing the hot liquid refrigerant to enter into the subcooling coil See Fig 43 As the hot liquid refrigerant passes through the subcooling reheat dehumidification coil it is exposed to the cold supply airflow coming through the evaporator coil The liquid is further subcooled to a temperature approaching the evaporator leaving air temperature The liquid then enters a thermostatic expansion valve TXV where the liquid drops to a lower pressure The TXV does not have a pressure drop great enough to change the liquid to a 2 phase fluid so the liquid then enters the Acutrol device at the evaporator coil 49 551 The liquid enters the evaporator coil at temperature lower than in standard cooling operation This lower temperature increases the latent capacity of the rooftop unit The refrigerant passes through the evaporator and is turned into a vapor The air passing over the evaporator coil will become colder than during normal operation However as this same air passes over the subcooling coil it will be slightly warmed partially reheating the air Subcooling mode operates only when the outside air temperature is warmer than 40 F A factory installed temperature switch located in the condenser section will lock out subcooling mode when the outside temperature is cooler than 40 F The scroll compressors are equipped with crankcase heaters to provide protection for the compressors due to the additional refrigerant charg
111. ion Hi Static 6 6 5 Factory Setting Full Turns Open Std 3 3 3 3 Hi Static 31 5 31 5 31 5 Factory Speed Setting Std 756 826 936 1248 Hi Static 1233 1233 1396 Fan Shaft Diameter at Pulley in 5 8 5 8 5 8 5 8 HIGH PRESSURE SWITCH psig Standard Compressor Internal Relief 450 50 Cutout 428 Reset Auto 320 LOSS OF CHARGE LOW PRESSURE SWITCH Liquid LIne psig Cutout 7 3 Reset Auto 22 5 FREEZE PROTECTION THERMOSTAT Opens F 30 Closes F 45 OUTDOOR AIR INLET SCREENS Cleanable Screen quantity and size varies with option selected RETURN AIR FILTERS Throwaway Quantity Size in 2 16 25 2 LEGEND Bhp Brake Horsepower Single phase three phase These units do NOT meet the California low NOx requirements tttCalifornia SCAQMD compliant low NO models have combustion products that are controlled to 40 nanograms per joule or less 10 SG FIELD POWER SUPPLY 5 15 208 230 1 60 OR DISCONNECT MC E OS ve FIELD Lower SUPPLY a 1 1 575 3 60 DISCONNECT SIZES 060 AND 072 FIELD SUPPLY a LL DISCONNECT 1 208 230 3 60 SIZES 036 AND 048 LEGEND C Contactor COMP Compressor IFC Indoor Evaporator Fan Contactor NEC National Electrical Code TB Terminal Block BLK a TO COMP BLU BLU oo 208 230 3 60 FIELD POWER SUPPLY 460 3 60
112. irflow 8 Connector packages CRBTMPWRO01A01 and 002A01 are for thru the curb type gas Packages CRBTMPWRO003A01 and 004A01 are for thru the bottom type gas connections NAIL TYPICAL 4 SIDES D GASKET SUPPLIED WITH CURB 0 3 0 7 18 COUNTER FLASHING FIELD SUPPLIED ROOFING FELT dm a FIELD SUPPLIED M CANT STRIP E FIELD SUPPLIED ROOF ING MATERIAL FIELD SUPPLIED SUPPLY AIR OPENING N I p J 07 0 7 16 RIGID INSULATION x FIELD SUPPLIED 111 17 7 13 16 1 1 1 8 0 0 7 16 BOLT HEADS 15041 334 n 4 0 3 BOLT HEADS 7 SECTION C C SCALE 1 4 761 0 0 7 16 3 0 7 0 7 16 OPENING FOR 111 8141 HI SERVICE SEE NOTE 8 A BOLT HEADS BOLT HEADS 0 2 1 2 22 4 4 4 2 4 4 4 a 4 4 4 GAS SERVICE lt PLATE SEE NOTE 8 17 4 13 16 427 0 4 8 16 CINSIDE ree 3 1 CINSIDED 4 07 7 1 16 ls 179 SUPPLY AIR gt CINS IDES Sy Ld VIEW 2 3 8 HEAD OF BOLT TO BE ON 1611 2 INSIDE FLANGE lt gt 57 7 1 8 117051 VIEW B ALL CORNERS NOTE CAMBRIDGEPORT SURE LOCK CORNER FASTENING DEVICE IS ACCEPTABLE ALTERNATE CONSTRUCTION SEE VIEW C06365 Fig 2 Roof Curb Details 5518 ALLOWABLE DIFFERENCE in
113. ivation to allow the dampers to open This delay allows the damper to reach the appropriate position to avoid unnecessary fan overload Minimum Position Control There is a minimum damper position potentiometer on the EconoMi er IV controller See Fig 33 The minimum damper position maintains the minimum airflow into the building during the occupied period When using demand ventilation the minimum damper position represents the minimum ventilation position for VOC volatile organic compound ventilation requirements The maximum demand ventilation position is used for fully occupied ventilation When demand ventilation control is not being used the minimum position potentiometer should be used to set the occupied ventilation position The maximum demand ventilation position should be turned fully clockwise Adjust the minimum position potentiometer to allow the minimum amount of outdoor air as required by local codes to enter the building Make minimum position adjustments with at least 10 F temperature difference between the outdoor and return air temperatures To determine the minimum position setting perform the following procedure 1 Calculate the appropriate mixed air temperature using the following formula OA To x 100 100 Outdoor Air Temperature Outdoor Air Return Air Temperature Percent of Return Air Mixed Air Temperature As an e
114. l cover until all electrical sources are disconnected and tagged withlockout tags Relieve all pressure from the system before touching or disturbing anything inside the terminal box if a refrigerant leak is suspected around the compressor terminals Use accepted methods to recover the refrigerant 5 Never attempt to repair a soldered connection while the refrigerant system is under pressure 6 Do not use a torch to remove any component The system contains oil and refrigerant under pressure To remove a component wear protective goggles and proceed as follows a Shut off electrical power to the unit and tag disconnect b Recover refrigerant to relieve all pressure from the system using both high pressure and low pressure ports c Cut component connection tubing with a tubing cutter and remove the component from the unit d Carefully unsweat the remaining tubing stubs when necessary Oil can ignite when exposed to a torch flame Proceed as follows to inspect and prepare the unit for initial start up 1 Remove all access panels 2 Read and follow instructions all WARNING CAUTION and INFORMATION labels attached to or shipped with unit 3 Make the following inspections a Inspect for shipping and handling damages such as broken lines loose parts or disconnected wires etc b Inspect for oil at all refrigerant tubing connections and on unit base Detecting oil generally indicates a refrigerant le
115. ll open or vice versa will take between 1 1 2 and 2 1 2 minutes If free cooling can be used as determined from the appropriate changeover command switch dry bulb enthalpy curve differential dry bulb or differential enthalpy a call for cooling Y1 closes at the thermostat will cause the control to modulate the dampers open to maintain the supply air temperature set point at 50 to 55 F As the supply air temperature drops below the set point range of 50 to 55 F the control will modulate the outdoor air dampers closed to maintain the proper supply air temperature Heating Units With EconoMi er IV When the room temperature calls for heat the heating controls are energized as described in the Heating Units Without Economizer section During the occupied mode whenever the indoor fan contactor is energized the economizer damper moves to the minimum position Units With Perfect Humidity Adaptive Dehumidification System Normal Design Operation When the rooftop operates under the normal sequence of operation the compressors will cycle to maintain indoor conditions See Fig 42 The Perfect Humidity adaptive dehumidification system includes factory installed Motormaster low ambient control to keep the head and suction pressure high allowing normal design cooling mode operation down to 0 Subcooling Mode When subcooling mode is initiated this will energize close the liquid line solenoid valve LLSV forc
116. n per 10 ft of run Do not use a pipe size smaller than the unit connection 3 4 in See Fig 5 Step 4 Rig and Place Unit Inspect unit for transportation damage and file any claim with transportation agency Keep unit upright and do not drop Spreader bars are not required if top crating is left on unit and rollers may be used to move unit across a roof Level by using unit frame as a reference See Table 1 2 and Fig 6 for additional information Operating weight is shown in Table 1 2 and Fig 6 Lifting holes are provided in base rails as shown in Fig 7 Refer to rigging instructions on unit 4 WARNING PERSONAL INJURY AND PROPERTY DAMAGE HAZARD Failure to follow this warning could result in personal injury death and property damage All panels must be in place when rigging and lifting D ALT ROOF CURB UNIT CONNECTOR DRAIN cas rower CONTROL ACCESSORY ACCESSORY SIZE CRBTMPWROOTAOT 19 NPT CRRFCURB001A01 551B 036 072 CRBTMPWRO002A01 11 4 81 7 551 024 060 E CRRFCURBO002A01 CRBTMPWRO003AO01 44 5 12 3 4 19 7 CRBTMPWRO004A01 11 4 81 7 NOTES 19 NPT 1 Roof curb accessory is shipped disassembled 2 Insulated panels 3 Dimensions in are in millimeters 4 Roof curb galvanized steel 5 Attach ductwork to curb flanges of duct rest on curb 6 Service clearance 4 ft on each side 7 E Direction of a
117. nventional thermostats that have a Y1 cool stage 1 Y2 cool stage 2 W1 heat stage 1 W2 heat stage 2 and fan The EconoMi er IV control does not support space temperature sensors Connections are made at the thermostat terminal connection board located in the main control box 28 LED ON 18 17 164 LED OFF LED 15 E14 LED OFF EP B 13 12 LED OFF gt g LED ON 11 A LED OFF 94 40 45 50 55 60 65 70 75 80 85 90 95 100 DEGREES FAHRENHEIT C06035 Fig 34 Outside Air Temperature Changeover Set Points CONTROL CONTROL POINT APPROX deg F deg C AT 50 RH 2 4 7 10 13 16 18 APPROXIMATE DRY BULB TEMPERATURE degrees F degrees C IV CONTROLLER ECONOMISER IV A GROMMET RETURN AIR SENSOR RETURN DUCT FIELD PROVIDED C06036 Fig 35 Return Air Temperature or Enthalpy Sensor Mounting Location 90 95 100 105 110 32 35 38 41 43 SE M 2 77 ZN 27 29 32 35 C06037 Fig 36 Enthalpy Changeover Set Points Occupancy Control The factory default configuration for the EconoMi er IV control is occupied mode Occupied mode is provided by the black jumper from terminal TR to terminal N When unoccupied mo
118. oid valve stuck closed replace Low refrigerant charge or frosted evaporator coil 1 Check charge amount Charge per Fig 53 56 2 Evaporator coil frosted check and replace low pres sure switch if necessary Loss of Compressor Superheat Thermostatic expansion valve 1 Check TXV bulb mounting and secure tightly to suc Conditions with Subcooling Reheat tion line Dehumidification Coil Energized 2 Replace TXV if stuck open or closed Excessive Superheat Liquid line solenoid valve will not operate Valve is stuck replace valve Hot gas line solenoid valve will not close Valve is stuck replace valve Table 38 IV Input Output Logic INPUTS OUTPUTS x Bernand Control Enthalpy Compressor Terminalt y1 Y2 Stage Stage Unoccupied Ventilation DCV Outdoor Return 1 2 Damper Below set High Low On On position Closed LED Off Free Cooling LED Off On Off On Off Off Off Off Off Low High On Off Modulating between Modulating between Free Cooling LED On On Off Off Off position and full open closed and full open Off Off Off Off Minimum position Closed Above set High Low On On On Modulatingtt between min Modulatingtt between DCV LED On Free Cooling LED Off On Off On Off position DCV maximum closed DCV Of Of Of of max
119. ood divider between the hood sides See Fig 25 and 26 Secure hood divider with 2 screws on each hood side The hood divider is also used as the ol bottom filter rack for the aluminum filter 0 1 2 3 4 5 6 7 7 Open the filter clips which are located underneath the OUTDOOR AIRFLOW cfm x 100 hood top Insert the aluminum filter into the bottom filter C06132 rack hood divider Push the filter into position past the Fig 20 Outdoor Air Damper Position Setting open filter clips Close the filter clips to lock the filter into place See Fig 26 ECONOMISER IV 8 Caulk the ends of the joint between the unit top panel and CONTROLLER the hood top See Fig 24 WIRING OUTSIDE AIR 9 Replace the filter access panel HARNESS TEMPERATURE SENSOR LOW AMBIENT 10 Install all EconoMi er IV accessories EconoMi er IV SENSOR wiring is shown in Fig 27 ACTUATOR Barometric flow capacity is shown in Fig 28 Outdoor air leakage is shown in Fig 29 Return air pressure drop is shown in 3 t Fig 30 FILTER ACCESS PANEL C06021 Fig 21 EconoMi er IV Component Locations COMPRESSOR ACCESS PANEL OUTDOOR AIR OPENING AND INDOOR COIL ACCESS PANEL C06023 Fig 22 Typical Access Panel Locations 24 E HOOD BOX BRACKET C06024 Fig 23 Hood Box Removal SIDE PANEL SIDE 2 PANEL INDOO
120. outdoor air opening panel and screws See Fig 17 3 Remove evaporator coil access panel Separate hood and screen from basepan by removing the 4 screws securing them Save all screws 4 Replace evaporator coil access panel 5 Place hood on front of outdoor air opening panel See Fig 18 for hood details Secure top of hood with the 4 screws removed in Step 3 See Fig 19 6 Remove and save 6 screws 3 on each side from sides of the manual outdoor air damper 7 Align screw holes on hood with screw holes on side of manual outdoor air damper See Fig 18 and 19 Secure hood with 6 screws from Step 6 8 Adjust minimum position setting of the damper blade by adjusting the manual outdoor air adjustment screws on the front of the damper blade See Fig 17 Slide blade vertically until it is in the appropriate position determined by Fig 20 Tighten screws 9 Remove and save screws currently on sides of hood Insert screen Secure screen to hood using the screws See Fig 19 Convenience Outlet An optional convenience outlet provides power for rooftop use For maintenance personnel safety the convenience outlet power is off when the unit disconnect is off Adjacent unit outlets may be used for service tools 22 4 HRI LEGEND CB Circuit Breaker CR Cooling Relay Terminal Unmarked DHR Dehumidify Relay Splice DSV Discharge Solenoid Valve
121. ow low pressure switch to reset Replace switch if it will not close 3 Transformer bad check transformer Liquid line solenoid valve will not operate 1 Solenoid coil defective replace 2 Solenoid valve stuck open replace Liquid line solenoid valve will not open Valve is stuck closed replace valve Low System Capacity Low refrigerant charge or frosted evaporator coil 1 Check charge amount Charge per Fig 53 56 2 Evaporator coil frosted check and replace low pres sure switch if necessary Loss of Compressor Superheat Thermostatic expansion valve TXV 1 Check TXV bulb mounting and secure tightly to suc Conditions with Subcooling Reheat tion line Dehumidification Coil Energized 2 Replace TXV if stuck open or closed Table 37 Perfect Humidity Adaptive Dehumidification System Hot Gas Reheat Mode Service Analysis 6 PROBLEM CAUSE REMEDY ig Reheat Mode Will Not Energize No power to control transformer from Check power source and evaporator fan relay Ensure all evaporator fan motor wire connections are tight No power from control transformer to hot gas 1 Fuse open check fuse Ensure continuity of wiring line solenoid valve 2 Low pressure switch open Cycle unit off and allow low pressure switch to reset Replace switch if it will not close 3 Transformer bad check transformer Hot gas line solenoid valve will not operate 1 Solenoid coil defective replace 2 Solen
122. pe of measurement THERMOSTAT INPUT ECONOMIZER FUNCTION 551B C UNIT OPERATION H Y1 Y2 OAT Economizer Set Point Economizer Comp 1 Subcooling Mode Hot Gas Reheat Mode Off Normal Operation On On On No Off On Yes No On On Off No Off Yes No On On On Yes On On Yes No On On Off Yes On On No Yes On Off Off No Off On No Yes NOTE On a thermostat call for W1 all cooling and dehumidification will be off e 5 PSIG SUCTI ON LINE PRESSUR Am o x v 2 D pa gt A Ii 4 SUCTION LINE TEMPERATURE C C06139 Fig 49 Cooling Charging Chart Standard 551B 036 Perfect Humidity System Charging The system charge for units with the Perfect Humidity adaptive dehumidification system is greater than that of the standard unit alone The charge for units with this option is indicated on the unit nameplate drawing Also refer to Fig 53 56 To charge Systems using the Perfect Humidity adaptive dehumidification system fully evacuate recover and recharge the system to the nameplate specified charge level To check or adjust refrigerant charge on systems using the Perfect Humidity adaptive dehumidification system charge per Fig 53 56 52 758 110
123. psig and temperature at a point between the condenser coil and the subcooling reheat dehumidification coil A tap is provided on the unit to measure liquid pressure entering the subcooling reheat dehumidification coil IMPORTANT The subcooling mode charging charts Fig 53 56 are to be used ONLY with units having the Perfect Humidity adaptive dehumidification system DO NOT use standard charge Fig 49 51 and 57 60 for units with Perfect Humidity system and DO NOT use Fig 53 56 for standard units COOLING MODE CHARGING CHART 5 TON 60 2 CAPPLICABLE ONLY WHEN COIL IS IN SUBCOOLING MODE 2 OUTDOOR FAN MUST BE OPERATING ABOVE CURVE amp amp 8 e e E 5 4 6 E E 5 BELOW CURVE 100 150 200 250 300 LIQUID PRESSURE LEAVING CONDENSER PSIG C06145 Fig 55 Cooling Charging Chart 551B 048 with Optional Perfect Humidity Adaptive Dehumidification System COOLING MODE CHARGING CHART TON 6OHZ CAPPLICABLE ONLY WHEN COIL IS IN SUBCOOLING MODE OUTDOOR FAN MUST BE OPERATING S t a D m 5 5 5
124. range 1075 to 1455 rpm All other rpms require field supplied drive 43 551B C Table 29 Performance 551 060 551 060 Single Phase Horizontal Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AS 02 04 0 6 0 8 1 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 1500 724 0 33 295 837 0 45 402 937 0 59 524 1028 0 74 660 1111 0 91 808 1600 757 0 39 343 866 0 51 455 962 0 65 580 1050 0 81 719 1132 0 98 870 1700 790 0 45 398 894 0 58 514 988 0 72 643 1074 0 88 784 1154 1 06 938 1800 823 0 52 458 924 0 65 579 1015 0 80 712 1099 0 96 857 1177 1 14 1013 1900 857 0 59 525 955 0 73 650 1043 0 89 787 1125 1 05 936 1201 1 23 1096 2000 892 0 67 599 986 0 82 729 1072 0 98 870 1151 115 1022 2100 927 0 77 680 1017 0 92 815 1101 1 08 960 1178 1 26 1116 2200 962 0 87 769 1050 1 02 909 1131 1 19 1059 2300 997 0 97 865 1082 1 14 1010 2400 1033 1 09 970 1115 1 26 1120 2500 1069 1 22 1084 EXTERNAL STATIC PRESSURE wg AIRFLOW CFM 1 2 1 4 1
125. rgent Do not use disposable filters in place of screens Step 2 Lubrication Compressor The compressor is charged with the correct amount of oil at the factory Fan Motor Bearings Fan motor bearings are permanently lubricated No further lubrication is required lubrication of condenser fan or evaporator fan motors is required Evaporator Fan Belt Adjustment Inspect evaporator fan belt for wear proper belt tension and pulley alignment as conditions require or at the beginning of each heating and air conditioning season Refer to Step 7 Adjust Evaporator Fan Speed for adjustment and alignment procedures 51 5518 Table 34 Perfect Humidity Adaptive Dehumidification System Sequence of Operation and System Response Single Compressor Unit 551C 024 060 551B 036 072 LEGEND OAT Outdoor Air Temperature Step 3 Condenser Fan Adjustment Shut off unit power supply Remove condenser fan assembly grille motor motor cover and fan and loosen fan hub setscrews Adjust fan height as shown in Fig 50 Tighten setscrews and replace condenser fan assembly UNIT FAN HEIGHT in A 024 060 and 072 208 230 v 2 75 072 460 v 3 50 C06138 Fig 48 Condenser Fan Adjustment Step 4 IV Adjustment Refer to Optional EconoMi er IV section Step 5 Refrig
126. stions which will result in enhanced installation reliability or operation 4 WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could cause personal injury or death Before performing service or maintenance operations on unit turn off main power switch to unit and install lockout tag Ensure electrical service to rooftop unit agrees with voltage and amperage listed on the unit rating plate INSTALLATION Unit is shipped in the vertical discharge configuration To convert to horizontal discharge application remove duct opening covers Using the same screws install covers on duct openings in basepan of unit with insulation side down Seals around openings must be tight See Fig 1 551 Step 1 Provide Unit Support Roof Curb Assemble and install accessory roof curb in accordance with instructions shipped with curb See Fig 2 Install insulation cant strips roofing felt and counter flashing as shown Ductwork must be attached to curb not to the unit If electric control power or gas service is to be routed through the basepan attach the accessory thru the bottom service connections to the basepan in accordance with the accessory installation instructions Connections must be installed before unit is set on roof curb REMOVABLE HORIZONTAL RETURN DUCT OPENING COVER REMOVABLE HORIZONTAL SUPPLY DUCT OPENING COVER 06108 Fig 1 Horizontal Conversion Panels IMPORTANT The gasketin
127. supply air temperature into the zone As the supply air temperature fluctuates above 55 or below 50 F the dampers will be modulated open or close to bring supply air temperature back within the set point limits Integrated EconoMi er IV operation on single stage units requires a 2 stage thermostat Y1 and Y2 For EconoMi er IV operation there must be a thermostat call for the fan G This will move the damper to its minimum position during the occupied mode If the increase in cooling capacity causes the supply air temperature to drop below 45 F then the outdoor air damper position will be fully closed If the supply air temperature continues to fall the outdoor air damper will close Control returns to normal once the supply air temperature rises above 48 F If optional power exhaust is installed as the outdoor air damper opens and closes the power exhaust fans will be energized and deenergized If field installed accessory CO sensors are connected to the EconoMi er IV control a demand controlled ventilation strategy will begin to operate As the CO level in the zone increases above the set point the minimum position of the damper will be increased proportionally As the CO level decreases because of the increase in fresh air the outdoor air damper will be proportionally closed Damper position will follow the higher demand condition from DCV mode or free cooling mode Damper movement from full closed to fu
128. tal Face Area sq ft 14 6 14 6 16 5 16 5 EVAPORATOR COIL 3 8 in OD Enhanced Copper Tubes Aluminum Double Wavy Fins Standard Unit Rows Fins in 2 15 2 15 2 15 4 15 Total Face Area sq ft 4 2 5 5 5 5 5 5 Unit with Perfect Humidity Adaptive Dehumidification System Rows Fins in 1 17 1 17 2 17 2 17 Total Face Area sq ft 3 5 3 9 3 9 3 9 EVAPORATOR FAN Centrifugal Type Belt Drive Quantity Size in 1 10x 10 1 10x 10 1 10x 10 1 10x 10 Nominal Cfm 800 1200 1600 2000 Maximum Continuous Bhp Std 0 58 1 20 1 20 1 30 2 40 Hi Static 2 40 2 40 2 90 Motor Frame Size Std 48 48 48 48 56 Hi Static 56 56 56 Motor Rom 1620 1620 1620 1725 Fan Rpm Range Std 400 1000 680 1044 770 1185 1035 1460 Hi Static 1075 1455 1075 1455 1300 1685 Motor Bearing Type Ball Ball Ball Ball Maximum Fan Rpm 1620 2100 2100 2100 Motor Pulley Pitch Diameter A B in Std 2 4 3 2 1 9 2 9 1 9 2 0 2 4 3 4 Hi Static 2 8 3 8 2 8 3 8 3 4 4 4 Nominal Motor Shaft Diameter in Std 5 8 15 1 2 5 8 Hi Static 7 8 5 8 5 8 5 8 Fan Pulley Pitch Diameter in Std 4 0 4 5 4 0 4 0 Hi Static 4 5 4 5 4 0 4 5 Belt Type Length in Std 1 4 36 1 36 1 36 1 4 40 Hi Static 1 39 1 39 1 40 Pulley Center Line Distance in 10 0 12 4 10 0 12 4 10 0 12 4 14 7 15 5 Speed Change Full Std 60 65 70 75 Movable Pulley Flange rpm Hi Static 65 65 60 Movable Pulley Maximum Full Std 5 5 5 6 Turns from Closed Posit
129. tallation instructions when field installing an EconoMi er IV accessory 1 To remove the existing unit filter access panel raise the panel and swing the bottom outward The panel is now disengaged from the track and can be removed See SCREEN Fig 22 _ AOT SHOWN 2 The box with the economizer hood components is shipped in the compartment behind the economizer The EconoMi er IV controller is mounted on top of the EconoMi er IV To remove the component box from its shipping position remove the screw holding the hood box bracket to the top of the economizer Slide the hood box 06 out of the unit See Fig 23 IMPORTANT If the power exhaust accessory is to be installed on the unit the hood shipped with the unit will not be used and 05 must be discarded Save the aluminum filter for use the power exhaust hood assembly C06131 Fig 19 Outdoor Air Damper With Hood Attached 3 The indoor coil access panel will be used as the top of the hood Remove the screws along the sides and bottom of the indoor coil access panel See Fig 24 04 Swing out indoor coil access panel and insert the hood sides under the panel hood top Use the screws provided to attach the hood sides to the hood top Use screws provided to attach the hood sides to the unit See Fig 25 5 Remove the shipping tape holding the economizer barometric relief damper in place 03 NEGATIVE PRESSURE in wg AB 02 01 6 Insert the h
130. vided for field service Use factory supplied splices or UL Underwriters Laboratories approved copper connector When installing units provide a disconnect per NEC field wiring must comply with NEC local requirements Install field wiring as follows 1 Install conduit through side panel openings For units without electric heat install conduit between disconnect and control box 2 Install power lines to terminal connections as shown in Fig 12 3 For units with electric heat refer to Accessory Electric Heat Installation Instructions During operation voltage to compressor terminals must be within range indicated on unit nameplate also see Table 3 and 4 On 3 phase units voltages between phases must be balanced within 2 and the current within 10 Use the formula shown in Table 3 and 4 Note 2 to determine the percentage of voltage imbalance Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components Such operation invalidates any applicable Bryant warranty NOTE If accessory thru the bottom connections and roof curb are used refer to the Thru the Bottom Accessory Installation Instructions for information on wiring the unit Field Control Wiring Install Bryant approved accessory thermostat assembly according to installation instructions included with the accessory Locate thermostat assembly on a solid wall in the conditioned
131. xample if local codes require 10 outdoor air during occupied conditions outdoor air temperature is 60 and return air temperature is 75 F 60 x 10 75 x 90 73 5 F 2 Disconnect the supply air sensor from terminals T 3 Ensure that the factory installed jumper is in place across terminals P and P1 If remote damper positioning is being used make sure that the terminals are wired according to Fig 27 and that the minimum position potentiometer is turned fully clockwise 4 Connect 24 vac across terminals TR and 5 Carefully adjust the minimum position potentiometer until the measured supply air temperature matches the calculated value 6 Reconnect the mixed air sensor to terminals T and Remote control of the EconoMi er IV damper is desirable when requiring additional temporary ventilation If field supplied remote potentiometer Honeywell part number 5963 1128 is wired to the EconoMi er IV controller the minimum position of the damper can be controlled from a remote location To control the minimum damper position remotely remove the factory installed jumper on the P and P1 terminals on the EconoMi er IV controller Wire the field supplied potentiometer to the P and terminals on the EconoMi er IV controller See Fig 37 Damper Movement Damper movement from full open to full closed or vice versa takes 21 2 minutes Thermostats The EconoMi er IV control works with co
132. zv L 29 819 ON SH 998303 08 6 61 L LE zv L z89 819 S3A aig 98 2 el 61 LE zv 29 819 ON 9 sz og 042 891 621 600 9 12 sz 901 800 89 gh 901 L 8 400 gz 6 Vs 805 vit SJA 9 vL 2 22 900 29 21 ET 09 zz Sz 891 621 600 09 61 Sz 902 901 800 suoi 09 9 901 L 8 200 92 Vs 805 vit ON 9 0 09 T oz 22 9 900 09 6 2 8b 08 lt 92 891 621 600 999 087 8v sz 81 901 800 8b m 901 L 8 200 zz 6 Vs 805 vit SJA 8b 2 rT 22 9 900 8v T 2 9r zz Sz 891 621 600 as 9r 81 Sz 002 901 800 9r 091 901 L 8 200 zz 6 Vs 805 vit ON 9v T 2 22 9 900 6 06 008 vu vu 9200 vu n d vu vw AID imuno 4 ERN Wal er ANOD TVNINON LINN 3215 LOANNOOSIA Alddns 1 31419773 HOOGLNO dossaddNoo 28166 002 qTSs ejeq PLDI p AL 18 69 ZL SL 921 92 vo v9 269 816 SHA 18 01 SL vot

Bryant 551C User's Manual

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