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Johnson Controls BQ 048 manual

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Table of contents for the manual

  • Page 1

    INST ALLA TION MANUAL CAUTION: READ ALL SAFETY GUIDES BEFORE YOU BEGIN TO INST ALL YOUR UNIT . SAVE THIS MANUAL ISO 9001 Certified Quality Management System SUNLINE 2000™ SINGLE P ACKAGE HEA T PUMP BQ 036, 048 & 060 EXPORT ONLY 364985-XIM-B-0508 CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SAFETY CONSIDER[...]

  • Page 2

    364985-XIM-B-0508 2 Johnson Controls Unitary Products T ABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SAFETY CONSIDERATION S . . . . . . . . . . . . . . . . . . 4 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 3

    364985-XIM-B-0508 Johnson Controls Unitary Products 3 LIST OF FIGURES Fig. # Pg. # 1 RECOMMENDED DRAIN PIPING . . . . . . . . . . . . . . . . 7 2 COMPRESSOR RESTRAINING BRACKET . . . . . . . . 8 3 TYPICAL FIELD POWER & CONTROL WIRING . . . . 9 4 ENTHALPY SETP OINT ADJUSTMENT . . . . . . . . . . 13 5 HONEYWELL ECONOMIZER CONTRO L W7212 . . . 13 [...]

  • Page 4

    364985-XIM-B-0508 4 Johnson Controls Unitary Products GENERAL YORK Model BQ units are single package heat pumps equipped wit h optional factor y installed electric h eat- ers. These are designe d for outdoor installation o n a rooftop or slab . The units are complete ly assembled on ri gid, perma- nently attached base r ails. All piping, refrigeran[...]

  • Page 5

    364985-XIM-B-0508 Johnson Controls Unitary Products 5 PRODUCT NOMENCLA TURE B Q 048 N04 A 2 A AA 1 0 1 2 4 A Product Category B = HP, Single Pkg., R-22 A = Direct Drive Airflow B = Direct Drive/Single Input Economizer D = Direct Drive/Motorized Damper N = Belt Drive P = Belt Drive/Single Input Economizer R = Belt Drive/Motorized Damper T = Belt Dri[...]

  • Page 6

    364985-XIM-B-0508 6 Johnson Controls Unitary Products INST ALLA TION INST ALLA TION SAFETY INFORMA TION: Read these in structions befo re continuing this appli- ance installation. This is an outdoor combination hea t- ing and cooling unit. The installer must assure that these instructions are ma de available to th e consumer and with instructions t[...]

  • Page 7

    364985-XIM-B-0508 Johnson Controls Unitary Products 7 RIGGING AND HANDLING Exercise care when mo ving the unit. Do not r emove any packaging until the unit is near th e place of installa- tion. Rig the unit by attaching chain or cable slings to the lifting ho les provided in the base rails. Spreader bars, whose length exceeds the largest dimension [...]

  • Page 8

    364985-XIM-B-0508 8 Johnson Controls Unitary Products COMPRESSORS Units are shipped with comp ressor mountings factory- adjusted and ready for ope ratio n. Units with scroll co mpressors have a shipping bracket which must be removed after th e unit is set in place. See Figure 2. FIL TERS One-inch or two-inch filters ca n be supplied with each unit.[...]

  • Page 9

    364985-XIM-B-0508 Johnson Controls Unitary Products 9 FIGURE 3 - TYPICAL FIELD POWER & CONTROL WIRING REFER T O THE ELECTRICAL D A T A T ABLES TO SIZE THE DISCONNECT SWITCH, O VERCURRENT PRO TEC- TION AND WIRING. RC RH Y1 Y2 W1 W2 G LED 1 LED 2 COM A1 A2 T T B R Y1 Y2 G C X OCC W2 W1 THERMOSTAT 1 TERMINALS UNIT TERMINAL STRIP TB1 24 VOLT TRANSF[...]

  • Page 10

    364985-XIM-B-0508 10 Johnson Controls Unitary Products THERMOST A T The room thermosta t should be located on an inside wall approximat ely 56 inches above the floor where it will not be subject to drafts, sun exposure or heat from electrical fixtures or appliances. Fo llow the manufac- turer's instruc tions enclosed with the thermos tat for g[...]

  • Page 11

    364985-XIM-B-0508 Johnson Controls Unitary Products 11 ECONOMIZER/MOTORIZED DAMPER AND RAIN HOOD The instruction for the optiona l economizer/motorized damper and rain hood can be fo und in form 035- 07364-000. Use these instructions when field assem- bling an economizer rain hood onto a unit. The outdoo r and return air dampers, the da mper actuat[...]

  • Page 12

    364985-XIM-B-0508 12 Johnson Controls Unitary Products MINIMUM POSITION ADJUSTMENT With thermostat set to indoor fan on positio n, or termi- nals “R” to “G” energized, turn the M inimum Position Adjusting screw (located o n the damper control mod - ule) counterclockwise until the de sired minimum damper position has be en attained. ENTHALPY[...]

  • Page 13

    364985-XIM-B-0508 Johnson Controls Unitary Products 13 FIGURE 4 - ENTHALPY SETPOINT ADJUSTMENT 40 (4) 70 (21) 50 (10) 55 (13) 60 (16) 65 (18) 35 (2) 45 (7) 75 (24) 80 (27) 35 (2) 40 (4) 45 (7) 50 (10) 55 (13) 60 (16) 65 (18) 70 (21) 75 (24) 80 (27) 85 (29) 85 (29) 90 (32) 90 (32) 105 (41) 110 (43) 100 (38) 95 (35) 95 (35) 100 (38) 105 (41) 110 (43)[...]

  • Page 14

    364985-XIM-B-0508 14 Johnson Controls Unitary Products FIGURE 6 - FOUR AND SIX POINT LOADING 44 7 / 8 82 1 / 4 Y X A B C D CONDENSER COIL END OF UNIT FRONT OF UNIT APPROXIMATE CENTER OF GRAVITY BACK OF UNIT 44 7 / 8 82 1 / 4 Y X A B C D E F CONDENSER COIL END OF UNIT FRONT OF UNIT APPROXIMATE CENTER OF GRAVITY BACK OF UNIT T ABLE 4: CENTER OF G RA [...]

  • Page 15

    364985-XIM-B-0508 Johnson Controls Unitary Products 15 T ABLE 7: PHYSICAL DATA MODELS BQ 036 048 060 EV APORA TOR BLOWER Centrifug al Blower (Dia. x Wd. in.) 12 X 10 12 X 10 12 X 10 Fan Motor HP (Dire c t Dri ve ) 1/2 3/4 1 Fan Motor HP (Bel t Drive) 1 1/2 1 1/2 1 1/2 Fan Motor HP (Bel t Drive High Static) 1 1/2 1 1/2 2 EV APORA TOR COIL Rows Deep [...]

  • Page 16

    364985-XIM-B-0508 16 Johnson Controls Unitary Products T ABLE 9: ELECTR ICAL DA T A - BQ036-060 DI RECT DRIVE W/O POWERED CONV ENIENCE OUTLET Size (Tons) Volt Compressors (each) OD Fan Motors (each) Supply Blower Motor Pwr Conv Outlet Electric Heat Option MCA 1 (Amps) 1. Minimum Circuit Ampacity. Max Fuse 2 / Breaker 3 Size (Amps ) 2. Dual Element,[...]

  • Page 17

    364985-XIM-B-0508 Johnson Controls Unitary Products 17 T ABLE 10: ELECTRICAL DA T A - BQ036-060 BE L T DRIVE W/O POWERED CON VENIE NCE OUTLET Size (Tons) Volt Compressors (each) OD Fan Motors (each) Supply Blower Motor Pwr Conv Outlet Electric Heat Option MCA 1 (Amps) 1. Minimum Circuit Ampacity. Max Fuse 2 / Breaker 3 Size (Amps ) 2. Dual Element,[...]

  • Page 18

    364985-XIM-B-0508 18 Johnson Controls Unitary Products T ABLE 1 1: ELECTRICAL DA T A - BQ036-060 BEL T DR IVE HIGH ST A TIC W/O POWERED CONVENIENCE OUTLET Size (Tons) Volt Compressors (each) OD Fan Motors (each) Supply Blower Motor Pwr Conv Outlet Electric Heat Option MCA 1 (Amps) 1. Minimum Circuit Ampacity. Max Fuse 2 / Breaker 3 Size (Amps ) 2. [...]

  • Page 19

    364985-XIM-B-0508 Johnson Controls Unitary Products 19 T ABLE 12: ELECTRICAL DA T A - BQ036-060 DI RECT DRIVE W/POWERED CONVEN IENCE OUTLET Size (Tons) Volt Compressors (each) OD Fan Motors (each) Supply Blower Motor Pwr Conv Outlet Electric Heat Option MCA 1 (Amps) 1. Minimum Circuit Ampacity. Max Fuse 2 / Breaker 3 Size (Amps ) 2. Dual Element, T[...]

  • Page 20

    364985-XIM-B-0508 20 Johnson Controls Unitary Products T ABLE 13: ELECTRICAL DA T A - BQ036-06 0 BELT DRIVE W /POWERED CONVENIENCE OUTLET Size (Tons) Volt Compressors (each) OD Fan Motors (each) Supply Blower Motor Pwr Conv Outlet Electric Heat Option MCA 1 (Amps) 1. Minimum Circuit Ampacity. Max Fuse 2 / Breaker 3 Size (Amps ) 2. Dual Element, Tim[...]

  • Page 21

    364985-XIM-B-0508 Johnson Controls Unitary Products 21 T ABLE 14: ELECTRICAL DA T A - BQ036-060 BELT DRIVE HIGH ST A TIC W/POWERED CONVENIENCE OUTLET Size (Tons) Volt Compressors (each) OD Fan Motors (each) Supply Blower Motor Pwr Conv Outlet Electric Heat Option MCA 1 (Amps) 1. Minimum Circuit Ampacity. Max Fuse 2 / Breaker 3 Size (Amps ) 2. Dual [...]

  • Page 22

    364985-XIM-B-0508 22 Johnson Controls Unitary Products T ABLE 15: ELECTRIC HEA T CORRECTION FA C T O R S NOMINAL VOL T AGE VOL T AGE kW CAP . MUL TIPLIER 208 208 0.75 240 230 0.92 480 460 0.92 600 575 0.92 T ABLE 16: VOL T AGE LIMIT A TIONS 1 1. Utilization Range “A” in accordance with ARI S tandard 1 10. POWER SUPPL Y V O LTA G E MIN. MAX. 208[...]

  • Page 23

    364985-XIM-B-0508 Johnson Controls Unitary Products 23 FIGURE 8 - UNIT WITH ECO NOMIZER RAINHOOD FIGURE 9 - UNIT WITH FIXED OU TDOOR AIR/MOTORIZED DAMPER RAINHOOD DETAIL “A” DETAIL “B”[...]

  • Page 24

    364985-XIM-B-0508 24 Johnson Controls Unitary Products FIGURE 10 - UNIT DIMENSION S (REAR VIEW) FIGURE 1 1 - DISC ONNECT/BLOWER ACCESS LOCA TION T ABLE 17: UTILITIES ENTRY HOLE OPENING SIZE (DIA.) USED FOR A 7/8” KO 1 Contro l Wiring 2 Side Bottom B 2” KO 1 Power W iring Side Bottom C 1-5/8” KO Gas Piping (Fr ont ) D 1-1/2” KO Gas Piping ( [...]

  • Page 25

    364985-XIM-B-0508 Johnson Controls Unitary Products 25 T ABLE 19: SUPPL Y AIR BLOW ER PERFORMANCE (BQ036 BEL T DRIVE) - SIDE DUCT APPLICA TION Air Flow (CFM) Available External Static Pressure - IWG 1 1. Blower performance includes 1” fi lters. See STATIC RESISTANCE table for additional applications. 2. See RPM SELECTION table to determine desire[...]

  • Page 26

    364985-XIM-B-0508 26 Johnson Controls Unitary Products T ABLE 23: SUPPL Y AIR BLOW ER PERFORMANCE (BQ060 BEL T DRIVE) - SIDE DUCT APPLICA TION Air Flow (CFM) Available External Static Pressure - IWG 1 1. Blower performance includes 1” filters. See STAT IC RESISTANCE table for add itional applications. 2. See RPM SELECTION table to determine desir[...]

  • Page 27

    364985-XIM-B-0508 Johnson Controls Unitary Products 27 T ABLE 26: SUPPLY AIR BLOWER PERFORMANCE (BQ036, 048 & 060 DIRECT DRIVE) - BOTTOM DUCT APPLICATION UNIT TONNAGE MOT OR 1 SPEED A V AILABLE EXTERNAL ST A TIC PRESSURE - IWG 2 0.2 0.3 0.4 0. 5 0.6 0.7 0.8 0 .9 1.0 CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A[...]

  • Page 28

    364985-XIM-B-0508 28 Johnson Controls Unitary Products Drive Selection 1. Determ ine d esired airflow. 2. Calculate or measure the amount of external static pressure. 3. Using the opera ting point determined from steps 1 & 2, locate this po int on the appropriate supply air blower performance tab le. (Linear interpolation may be necessary.) 4. [...]

  • Page 29

    364985-XIM-B-0508 Johnson Controls Unitary Products 29 Altitude/Tempe rature Correction Fa ctors Air Temp. Altitude ( Ft.) 0 1000 2000 3000 4000 5000 6000 700 0 8000 9000 10000 40 1.060 1.022 0.986 0.950 0.916 0.882 0.849 0.818 0.788 0.758 0.729 50 1.039 1.002 0.966 0.931 0.898 0.864 0.832 0.802 0.772 0.743 0.715 60 1.019 0.982 0.948 0.913 0.880 0.[...]

  • Page 30

    364985-XIM-B-0508 30 Johnson Controls Unitary Products PHASING Check for proper compressor rotation. If the blower or compressors rotate in the wrong direction at start-up, the electrical con nection to the unit is mi sphased. Change the incoming line con nection phasing to ob tain proper rotation. (Scroll compre ssors operate in only one direction[...]

  • Page 31

    364985-XIM-B-0508 Johnson Controls Unitary Products 31 under field conditions would be inaccurate. T o assure a dry coil, the compressors should be deac- tivated while the test is being run. 4. Knowing the pre ssure drop across a dr y coil, the actual CFM through the unit can be determine d from the curve in Pressure Drop vs. Su pply Air CFM (Figur[...]

  • Page 32

    364985-XIM-B-0508 32 Johnson Controls Unitary Products ECONOMIZER WITH SING LE ENTHALPY SENSOR - When the room thermostat calls for coo ling, the low voltage control circuit from “R” to “G” and “Y1” is com- pleted. The UCB energizes t he blowe r motor (if the fan switch on the room thermost at is set in the “AUTO” position) and driv[...]

  • Page 33

    364985-XIM-B-0508 Johnson Controls Unitary Products 33 ing is still pr esent at th e conclusion o f the ASCD, the UCB will re-energize the compressor. Should a freezestat op en three times within two hours of operation, the UCB will lo ck-out the compressor and flash a code (see Table 32). LOW AMBIENT COOLING To determine when to op erate in low am[...]

  • Page 34

    364985-XIM-B-0508 34 Johnson Controls Unitary Products DEFROST MODE As mentioned earlier, the de frost control (DC) utilizes a time/temperature defrost scheme. The following two conditions must be met before the DC will enter a defrost mo de: The defros t thermostat (SD) mu st be closed. T his nor- mally open thermostat is mo unte d on the liq uid [...]

  • Page 35

    364985-XIM-B-0508 Johnson Controls Unitary Products 35 Refer to Table 31 for the required electric he at anticipa- tor setting. ST ART -UP (COOLING) PREST ART CHECK LIST After installation has been completed: 1. Check the electrical supply volt age being supplied. Be sure that it is th e same as listed on the unit nameplate. 2. Set the room thermos[...]

  • Page 36

    364985-XIM-B-0508 36 Johnson Controls Unitary Products has energized when the fan switch is in the AUT O position, check the room thermostat fo r contact between R and G in the AUTO position during calls for cooling. 3. If the supply air blower motor do es not energize when the fan switch is set to ON, check that line voltage is b eing supplied to [...]

  • Page 37

    364985-XIM-B-0508 Johnson Controls Unitary Products 37 The UCB will flash the last five alarms on th e LED. If the compressor is locked out, cancel any call for cool- ing. This will reset any compressor lock outs. NOTE: W hile the above step will reset any lockouts, the compressor may be held of f for the ASCD. See the next step. 10. If 24 volts is[...]

  • Page 38

    364985-XIM-B-0508 38 Johnson Controls Unitary Products MAINTENANCE NORMAL MAINTENANCE FIL TERS Inspect once a month. Replace dispo sable or clean permanen t type as n ecessary. DO NOT replac e per- manent type with disposable. The dimension al size of the replacement filter m ust be the same as the replaced filter. MOTORS Outdoor fan motors are per[...]

  • Page 39

    364985-XIM-B-0508 Johnson Controls Unitary Products 39[...]

  • Page 40

    Subject to change without notice. Print ed in U.S.A. 364985-XIM-B-0508 Copyright © 2008 by Johnson Controls, In c. All righ ts reserved. Supersedes: 364985-YIM-A -0308 Johnson Controls Un itary Products 5005 York Drive Norman, OK 73069[...]