Bard I36Z1-A Installation Instructions Manual Download Page 39

Manual 2100-578E

Page 

39 of 41

Motor

Motor OK when

R > 100k ohm

ECM 2.0

Only remove

Hex Head Bolts

Connector Orientation

Between 4 and 8 o'clock

Drip Loop

Back of

Control

Figure 5

Winding Test

Figure 4

Note:              

Use the shorter 

bolts and 

alignment pin 

supplied when 

replacing an 

ECM 2.0 

control.

Figure 3

ECM 

2.3/2.5

Power Connector

(5-pin)

Control Connector

(16-pin)

Hex-head Screws

Motor Connector

(3-pin)

Motor Connector

(3-pin)

Control Disassembly

Drip Loop

Push until

Latch Seats

Over Ramp

From Motor

Circuit

Board

 

TROUblESHOOTING INDOOR ECM™ blOWER MOTORS 

(Cont’d.)

Figure 18

Figure 19

Figure 20

Replacing ECM Control Module

To replace the control module for the GE variable-speed indoor blower 

motor you need to take the following steps:

  1.  You MUST have the correct replacement module.  The controls are 

factory programmed for specific operating modes.  Even though they look 

alike, different modules may have completely different functionality.

uSING THE WRoNG CoNTRol ModulE VoIdS All PRoduCT 

WARRANTIES ANd MAy PRoduCE uNEXPECTEd RESulTS.
 

2.  Begin by removing AC power from the unit being serviced.  

do NoT 

WoRk oN THE MoToR WITH AC PoWER APPlIEd.  

To avoid 

electric shock from the motor’s capacitors, disconnect power and wait at 

least 5 minutes before opening motor.
  3.  It is not necessary to remove the motor from the blower assembly, nor 

the blower assembly from the unit.  Unplug the two cable connectors to the 

motor control assembly.  There are latches on each connector.  

do NoT 

Pull oN THE WIRES.  

The plugs remove easily when properly released.

  4.  Locate the screws that retain to the motor control bracket to the sheet 

metal of the unit and remove them.  Remove two (2) nuts that retain 

the control to the bracket and then remove two (2) nuts that retain sheet 

metal motor control end plate.  

Refer to Figure 18.

  5.  Disconnect the three (3) wires interior of the motor control by using 

your thumb and forefinger squeezing the latch tab and the opposite side 

of the connector plug, gently pulling the connector.  

do NoT Pull oN 

THE WIRES, GRIP THE PluG oNly.  

Refer to Figure 18.

  6.  The control module is now completely detached from the motor.  

Verify with a standard ohmmeter that the resistance from each motor 

lead (in the motor plug just removed) to the motor shell is >100K ohms.  

Refer to Figure 19.  

(Measure to unpainted motor end plate.)  If any 

motor lead fails this test, do not proceed to install the control module.  

THE MoToR IS dEFECTIVE ANd MuST BE REPlACEd.

  

Installing the new control module will cause it to fail also.

  7.  Verify that the replacement control is correct for your application.  

Refer to the manufacturer’s authorized replacement list.  

uSING THE 

WRoNG CoNTRol WIll RESulT IN IMPRoPER oR No 

BloWER oPERATIoN.

  Orient the control module so that the 3-wire 

motor plug can be inserted into the socket in the control.  Carefully insert 

the plug and press it into the socket until it latches.  

A SlIGHT ClICk 

WIll BE HEARd WHEN PRoPERly INSERTEd.

  8.  Reverse the steps #5, 4, 3 to reconnect the motor control to the 

motor wires, securing the motor control cover plate, mounting the 

control to the bracket, and mounting the motor control bracket back 

into the unit.  

MAkE SuRE THE oRIENTATIoN you SElECT 

FoR REPlACING THE CoNTRol ASSuRES THE CoNTRol’S 

CABlE CoNNECToRS WIll BE loCATEd doWNWARd 

IN THE APPlICATIoN So THAT WATER CANNoT RuN 

doWN THE CABlES ANd INTo THE CoNTRol.

  DO NOT 

OVERTIGhTEN ThE BOLTS.

  9.  Plug the 16-pin control plug into the motor.  The plug is keyed.  

Make sure the connector is properly seated and latched.
  10. Plug the 5-pin power connector into the motor.  Even though the 

plug is keyed, 

oBSERVE THE PRoPER oRIENTATIoN.  do NoT 

FoRCE THE CoNNECToR.

  It plugs in very easily when properly 

oriented.  

REVERSING THIS PluG WIll CAuSE IMMEdIATE 

FAIluRE oF THE CoNTRol ModulE.

 11. 

Final installation check.  Make sure the motor is installed as follows:

    a. Motor connectors should be oriented between the 4 o’clock   

    and 8 o’clock positions when the control is positioned in its    

    final location and orientation.

    b. Add a drip loop to the cables so that water cannot enter the    

    motor by draining down the cables.  

Refer to Figure 20.

The installation is now complete.  Reapply the AC power to the HVAC 

equipment and verify that the new motor control module is working 

properly.  Follow the manufacturer’s procedures for disposition of the 

old control module.

Summary of Contents for I36Z1-A

Page 1: ...INSTALLATION INSTRUCTIONS Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 578E Supersedes 2100 578D Date 11 10 14 I36Z1 A I36Z1 B I36Z1 C I48Z1 A I48Z1 B I48Z1 C I60Z1 A...

Page 2: ...ure 1 Unit Dimensions 7 Center of Gravity 8 Figure 2A Unit on Lift 8 Figure 2B Unit Side 8 Wall Mounting Bracket Location 10 Bracket Wall Sect View Wood Framed Install 11 Figure 3 Compressor Shipping...

Page 3: ...ummer Manual N Air Conditioning Low Pressure Low Velocity ACCA Manual D or Duct System Design Manual Q Winter and Summer Air Conditioning For more information contact these publishers ACCA Air Conditi...

Page 4: ...ulation made according to methods of Air Conditioning Contractors of America ACCA The air duct should be installed in accordance with the Standards of the National Fire Protection Systems of Other Tha...

Page 5: ...TREATMENT X Std Hydrophilic Fin Evap Uncoated Alum Cond Coil 1 Phenolic Coated ID Coil 2 Phenolic Coated OD Coil 3 Phenolic Coated ID OD Coil CONTROLS X 24V Terminal Block Only w o CompleteStat 1 Comp...

Page 6: ...al Fuse or Ckt Breaker Field Power Wire Size Ground Wire Size Ckt A Ckt B Ckt A Ckt B Ckt A Ckt B Ckt A Ckt B I36Z1 A0Z A05 A10 j A15 230 208 1 1 1 1 or 2 1 or 2 26 52 78 84 40 60 80 90 8 6 4 4 10 10...

Page 7: ...RE TIES PART 7950 031 High Voltage Entrance Entrance Low Voltage 20 x 24 Supply Frame With Sides Removed 1 Total Depth 3 8 8 26 7 2 20 18 4 18 3 2 31 1 61 Total Width 1 4 4 28 1 4 9 3 46 1 8 24 Vent E...

Page 8: ...nit Tested Front of Unit Door to center Left side to center Floor to Center Crv erv Floor to Center no vent X Dimension Y Dimension Z Dimension Z Dimension I36Z1 A B 13 31 43 47 I36Z1 C 13 31 43 47 I4...

Page 9: ...e 1 for fork openings 8 Carefully lift the top section straight up avoiding tipping 9 Move the top section through the doorway place on flat surface free of debris 10 The bottom base can now be moved...

Page 10: ...eability and filter access must be considered before installing See Figure 5D for required clearances and recommended service access dimensions SEcuring unit to structure Shipped with the I TEC unit i...

Page 11: ...94 1 31 Min 20 34 Max 3 1 48 1 2 Max 48 Min 3 Centered 8 Centered 43 1 4 Max 49 16 8 20 20 20 43 7 42 3 4 Min 16 11 15 4 43 3 8 Duct Grille Floor Optional Outside Ceiling Wall Sleeve Telescoping Wall...

Page 12: ...Manual 2100 578E Page 12 of 41 FIGURE 3 COMPRESSOR SHIPPING BOLTS FIGURE 4 removal of air duct compressor shipping bolt compressor shipping bolt crv air duct...

Page 13: ...TTOM OF ROOF FLOOR OR FIXED CEILING SUSPENDED CEILING 20 MINIMUM 7 9 3 4 UNIT HEIGHT 9 7 MINIMUM CLEARANCE RECOMMENDED TO BOTTOM OF ROOF OR FIXED CEILING 9 2 MINIMUM REQUIRED INSTALLATION HEIGHT BOTTO...

Page 14: ...EARANCE RECOMMENDED TO BOTTOM OF ROOF OR FIXED CEILING 6 RISER FIELD SUPPLIED DUCT MIS 3200 TURNING VANES RECOMMENDED MINIMUM 12 4 MINIMUM FROM TOP OF UNIT TO DUCT BOTTOM FLOOR OR FIXED CEILING BOTTOM...

Page 15: ...24 MIN 12 MIN FOR LEFT SIDE ACCESS SIDE 12 MIN FOR RIGHT ACCESS WING WALL CONSTRUCTION TOP VIEW RIGHT CORNER CONSTRUCTION TOP VIEW LEFT CORNER CONSTRUCTION TOP VIEW CLOSET CONSTRUCTION TOP VIEW FILTE...

Page 16: ...heat pumps are designed for use with free return non ducted and either duct free with the use of IPBDFZ Series Plenum Box 18 or 12 or a duct supply air system The IPBDZ Plenum Box mounts on top of th...

Page 17: ...he right hand or left hand optional drain locations on the rear of the unit The hole is covered by insulation on the inside of the unit and will have to be cut away Located inside the unit about 12 in...

Page 18: ...Long Use 12 3 4 Long to Attach Inner Sleeve to Unit Back Self Tapping Screws Use 4 1 2 Long Screws to Attach frame to Exhaust Sleeve Use 12 Field Supplied Concrete or Wood Screws to Secure Outer Slee...

Page 19: ...ed insulated 1 Outside wall 2 Area between sleeve and wall 3 Drain area behind unit SIZE VARIES OUTDOOR GRILLE INSIDE WALL AND SLEEVE INTERIOR FLOOR AREA BETWEEN WALL OUTSIDE WALL INSULATED INSULATED...

Page 20: ...e sizing information and maximum fuse or HACR Type circuit breaker size Each unit is marked with a Minimum Circuit Ampacity This means that the field wiring used must be sized to carry that amount of...

Page 21: ...ging in the motor could result in motor failure TABLE 4 WALL THERMOSTATS W2 terminal is first stage electric heat if equipped First stage electric heat can be operated simultaneously with the heat pum...

Page 22: ...rip R 3 SC W1 E A D L O B Y2 Y1 24V G COM W2 Completestat Model CS9B THO or Model CS9BE THO SC SC GND Thermostat W1 E A YO D L O B Y2 Y1 R G C W2 Bard 8403 060 Blue Yellow Orange Red 1 Not needed belo...

Page 23: ...B Y2 Y1 R G C W2 Bard 8403 060 Blue Yellow Orange MIS 3204 A 1 Not needed below 15KW 2 to N C fire alarm circuit if emergency shutdown required Factory installed jumper Remove jumper and connect 3 Con...

Page 24: ...uit if emergency shutdown required Factory installed jumper Remove jumper and connect 3 3 4 CRV Wiring Harness RT Connect to G terminal when thermostat has Occupancy Signal 4 BROWN WHITE ORANGE BLACK...

Page 25: ...multiple leaks and recharges R 410A refrigerant is close to being an azeotropic blend it behaves like a pure compound or single component refrigerant The remaining refrigerant charge in the system ma...

Page 26: ...wer in such a way as to cause rotation in the reverse direction verification of proper rotation must be made Verification of proper rotation direction is made by observing that suction pressure drops...

Page 27: ...on a circuit is completed from R B and R Y1 on each heating on cycle energizing reversing valve solenoid and pulling in compressor contactor starting compressor and outdoor motor R G also make startin...

Page 28: ...SPEEDUP terminals to accelerate the HPC timer and initiate defrost Be careful not to touch any other terminals with the instrument used to short the SPEEDUP terminals It may take up to 15 seconds with...

Page 29: ...ergize the CRV and indoor blower during occupied periods of the day NOTE The ventilation package comes with a blower interlock function but is disabled when it is shipped from the factory in case you...

Page 30: ...D BLUE MED LO VENT OPTION INTAKE EXHAUST SPEEDS 7961 755 2 RED HI MED HI BLUE ORANGE NOM CFM BLACK WIRE COLOR LO ORANGE RED WIRE WITH WHITE TRACE 300 375 450 525 TO CHANGE SPEEDS MOVE BROWN BROWN WHIT...

Page 31: ...rv speed change terminal access BLOWER SPEED CONTROL LOCATION BLOWER SPEED CONTROL BLOWER REMOVED FOR CLARITY CRV DOOR TO ACCESS CRV COMPONENTS REMOVE 9 SCREWS FROM MIS 3207 A CRV INTAKE BLOWER NOTE C...

Page 32: ...Manual 2100 578E Page 32 of 41 FIGURE 17 ventilation airflow diagram Indoor Air VENT EXHAUST Supply Air Outdoor Air BLOWER BLOWER INTAKE VENT SUPPLY BLOWER Return Air MIS 3208...

Page 33: ...d cleaners aromatic solvents temperatures in excess of 170 F or steam Damage to the wheel may result Do not disassemble and immerse the entire heat wheel in a soaking solution as bearing and other dam...

Page 34: ...eplace capacitor Reversing valve does not energize heating only Heat pump control defective Check for 24V between RV C and B C 1 Check control circuit wiring 2 Replace heat pump control Reversing valv...

Page 35: ...54529 20 46200 58 16122 96 6383 17 149355 21 44855 59 15710 97 6239 16 144374 22 43554 60 15310 98 6098 15 139576 23 42295 61 14921 99 5961 14 134956 24 41077 62 14544 100 5827 13 130506 25 39898 63 1...

Page 36: ...trol is bypassed d If motor is not running go to next section 4 If the motor does not appear to be running at the proper speed or does not shut off refer to the next sectionforvoltagecheckstodetermine...

Page 37: ...ermistor Temperature Resistance Chart in this manual Table 6 GREEN STATUS LED Blinks indicating there is a call for fan operation simultaneous to call for compressor operation and is normal RED STATUS...

Page 38: ...ne if it s air noise cabinet duct or motor noise interview customer if necessary Air noise High static creating high blower speed Is airflow set properly Does removing filter cause blower to slow down...

Page 39: ...e control module is now completely detached from the motor Verify with a standard ohmmeter that the resistance from each motor lead in the motor plug just removed to the motor shell is 100K ohms Refer...

Page 40: ...13 12 11 9 3 5 1 2 4 MIS 2839 FIGURE 21 control connector motor half Suggested mating connector Housing AMP 350809 1 Contact AMP 350537 1 WARNING Applying 240VAC line input with PIN 1 to PIN 2 jumper...

Page 41: ...85 54 293 60 301 67 309 74 318 81 326 89 334 97 342 106 349 114 356 122 363 130 370 138 377 I60Z1 70 DB Low Side High Side 38 285 42 289 46 293 50 297 54 301 58 305 63 309 67 313 80 335 94 357 100 365...

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