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3D Connexion mD4000-b manual

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Table of contents for the manual

  • Page 1

    Manual 2100-574 Page 1 of 23 MD4000 SERIES SOLID ST A TE DUAL UNIT LEAD/LAG CONTROLLER for use with H-Series W all Mount Air Conditioners with F & G Spyder™ Economizers only INST ALLA TION INSTRUCTIONS & REpLACEMENT p ARTS LIST Manual No.: 2100-574 Supersedes: NEW File: V ol. III T ab 19 Date: 07-05-12 Bard Manufacturing Company , Inc. Br[...]

  • Page 2

    Manual 2100-574 Page 2 of 23 CONTENTS Economizer Failure Alarm ..................................... 16 Dirty Filter Alarm .................................................... 16 2-Compressor Run Alarm ...................................... 16 Alarm Wiring ........................................................... 16 2nd Stage Cooling Alarm ......[...]

  • Page 3

    Manual 2100-574 Page 3 of 23 Getting Other Information and Publications These publications can help you install the air conditioner or heat pump. Y ou can usually nd these at your local library or purchase them directly from the publisher . Be sure to consult current edition of each standard. Standard for the Installation ............... ANSI/NF[...]

  • Page 4

    Manual 2100-574 Page 4 of 23 shIPPInG DamaGe Upon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately , preferably in writing, requesting inspection by the carrier ’ s agent. General These instructions explain the operation, ins[...]

  • Page 5

    Manual 2100-574 Page 5 of 23 sPecIFIca tIOns/Fea tures FOr mD4000-b cOntrOller MD4000 Basic Controller •Input power: 18-32 V AC, 60/50Hz, power is supplied from A/C #1 and/or A/C #2 •Isolation circuitry: no line or low voltage phasing required •Backup power: connection for -24 VDC or -48 VDC (-20 to -56V) maintains microprocessor operation, f[...]

  • Page 6

    Manual 2100-574 Page 6 of 23 lOca teD In the mD4000 P anel bOx Unit #1 t erminal Block R – 24V AC hot from Unit C – 24V AC common from Unit Y – Compressor Signal to Unit F – Economizer Shutdown Output to Economizer A – Compressor Signal from Economizer 4 – Dirty Filter Alarm from Unit 5 – Dirty Filter Alarm from Unit 6 – Signal Comm[...]

  • Page 7

    Manual 2100-574 Page 7 of 23 lOW vOl t aGe FIelD WIrInG The MD4000 is powered from the air conditioners that it is controlling, 24 V AC (18-32V) low voltage only . Circuitry in the MD4000 isolates the power supplies of the two air conditioners so that no back feeds or phasing problems can occur . Additionally , if one air conditioner loses power , [...]

  • Page 8

    Manual 2100-574 Page 8 of 23 FIre suPPressIOn cIrcuIt T o disable the MD4000 and shut down both air conditioners, terminals F1 and F2 may be used. The F1 and F2 terminals must be jumpered together for normal operation. A normally closed (nc) set of dry contacts may be connected across the terminals and the factory jumper removed for use with a e[...]

  • Page 9

    Manual 2100-574 Page 9 of 23 General PrOGrammInG Over vIeW mD4000 cOntrOller buttOns anD FunctIOn On/Off Button 1. Press and release the On/Off button to turn On controller, 4-character display will illuminate and Lead unit LED will light. 2. Press and release the On/Off button to turn Off controller . Controller will go dark and A/C units will sto[...]

  • Page 10

    Manual 2100-574 Page 10 of 23 MD4000 decides Lead unit Spyder 1 is lead Signals Spyder2 as lag. Spyder 2 is lead Signals Spyder1 as Lag DC Amp load is read and converted to building load with the equation DCA * 106.4-.2455 = BTUH Calculate Available Cooling (AC) for 1 econ Available cooling =( SP- MTD-OAT)*1.08*Airflow If AC > BL Calculate MAT S[...]

  • Page 11

    Manual 2100-574 Page 1 1 of 23 sPecIFIca tIOns FOr OPtIOnal remOte cOmmunIca tIOn bOarD CB4000 COMMUNICA tION BOARD Note: If this communication boar d was not originally factory installed it can be eld-installed at anytime. Bar d part number is CB4000. It allows r emote access via Ethernet, depending upon level of authority assigned, to all func[...]

  • Page 12

    Manual 2100-574 Page 12 of 23 USER P AGE 1. The designated Admin person can assign up to 9 additional users and set-up as Admin, W rite or Read authority . 2. User Name and password must be assigned, each must be at least 3 characters long, and are case sensitive. 3. Only “Admin” can add, change or delete users and has access to all controller [...]

  • Page 13

    Manual 2100-574 Page 13 of 23 cOntrOller WIrInG The MD4000 can be used for controlling two (2) air conditioners with economizers. securItY (lOckInG) Fea ture The MD4000 controller can be locked such that unauthorized persons cannot make any changes to temperature set points or any other selectable parameters of the controller system. The ON/OFF and[...]

  • Page 14

    Manual 2100-574 Page 14 of 23 FIGure 1 mD4000-b cOntrOller cOnnectIOns 1-st aGe (h**a/h**l serIes) aIr cOnDItIOners WIth (ecOnWmt) ecOnOmIzers system t ype model series mD4000-b newer ecOnWmt economizer — no communication board mD4000-bc newer ecOnWmt economizer with cb4000 communication board A/C with 1-Stage Compressor H**A / H**L 1 2 t able 1 [...]

  • Page 15

    Manual 2100-574 Page 15 of 23 FIGure 2 mD4000-bc cOntrOller cOnnectIOns 1-st aGe (h**a/h**l serIes) aIr cOnDItIOners WIth (ecOnWmt) ecOnOmIzers anD WIth alarm bOarD & cb4000 cOmmunIca tIOn bOarD 2 E F 2 3 E F 3 C 3 2 1 3 -3 2 -3 1 -3 NC NO CU , AND SIL VER M US T NO TE : A LL SENS OR S ARE POL AR I TY SENS ITI VE . COPPER L EAD M US T CONNEC T [...]

  • Page 16

    Manual 2100-574 Page 16 of 23 alarm WIrInG Alarm relays can be wired for NO (close on alarm) or NC (open on alarm) strategy . Alarm relays can be used individually if there are enough available building alarm points, or can be arranged into smaller groups or even a single group so that all alarm capabilities can be utilized. When multiple alarms ar[...]

  • Page 17

    Manual 2100-574 Page 17 of 23 2nD st aGe cOOlInG alarm This alarm output is available for use if desired. It is important to note that in some installations, due to A/C system sizing and internal heat load, that the secondary (lag) air conditioning unit may be called upon to assist the lead air conditioner some of the time. If this is the case, or [...]

  • Page 18

    Manual 2100-574 Page 18 of 23 FIGure 3 alarm bOarD cOnnectIOns FOr nOrmall Y clOseD "nc" OPen-On-alarm stra teGY IMPOR t ANt! LED display board is shipped loose to pr otect it from possible damage during installation of the wiring to main contr oller boar d and/or the alarm board. It is polarity sensitive and is keyed so it can only be in[...]

  • Page 19

    Manual 2100-574 Page 19 of 23 FIGure 4 alarm bOarD cOnnectIOns FOr nOrmall Y OPen "nO" clOse-On-alarm stra teGY IMPOR t ANt! LED display board is shipped loose to pr otect it from possible damage during installation of the wiring to main contr oller boar d and/or the alarm board. It is polarity sensitive and is keyed so it can only be ins[...]

  • Page 20

    Manual 2100-574 Page 20 of 23 PrOGrammInG InstructIOns T o swap lead and lag unit positions, press the ADV ANCE button. T o enter the Program mode, press the PROGRAM button and release it when the message PROG appears on the display . When in Program mode, the DOWN and UP arrows are used to scroll through the programming steps. A FLASHING display m[...]

  • Page 21

    Manual 2100-574 Page 21 of 23 Material: 10 mil HP92WP lexan Adhesive: 7952MP Premask: 4075 Colors: black, spot white, trans red, spot frosted clear trans red window adhesive die emboss die cut 11” 8.5” D 27F/15C LEAD 7961-762 N/A - See Operating Manual N/A - See Operating Manual N/A - See Operating Manual N/A - See Operating Manual N/A - See Op[...]

  • Page 22

    Manual 2100-574 Page 22 of 23 FIGure 5 P arts lIst DescrIPtIOn DIaGram 20 10 8 6 18 SEXP-648 1 5 9 2 13 7 12 19 4 15 3 17 14 11[...]

  • Page 23

    Manual 2100-574 Page 23 of 23 Parts List Dwg. no. Part no. Description mD4000-b mD4000-bc ab3000-b cb4000 1 127-423-4 Control Box X X 2 8612-038 Controller Board X X 3 8612-021 Alarm Board B X X X 4 8612-022 Alarm Display X X X 5 1 13-456-4 Support Bracket X X 6 152-515-4 Control Box Door X X 7 861 1-099 L TF Fitting X X 8 5400-002 Hinge X X 9 8612[...]