Bard I30H1, I60H1, I36H1, I42H1, I30H1D User Manual

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I-TEC SERIES P ACKAGED HEAT PUMP

INSTALLATION INSTRUCTIONS

Models:

I30H1 I36H1 I42H1 I48H1 I60H1 I30H1D I36H1D I42H1D I48H1D I60H1D

Bard Manufacturing Company, Inc. Bryan, Ohio 43506

Since 1914 . . . Moving ahead, just as planned.

MIS-2957 A

Manual: 2100-549G Supersedes: 2100-549F File: Vol. II Tab 14 Date: 11-05-13

Manual 2100-549G Page 1 of 59

CONTENTS

Getting Other Information and Publications

For more information, contact these publishers:.......... 3

General & ANSI Z535.5 Definitions.............................4

I-TEC General Information

I-TEC Model Nomenclature.......................................... 5

Shipping Damage, Unit Removal From Skid ............... 8

Handling Unit After Removal From Skid....................... 8

Required Steps after Final Placement..........................9

Minimum Installation Height .........................................9

Securing Unit to Structure & Seismic Considerations.. 9

Duct Work, Supply Duct Connections & Filters .......... 17

Condensate Drain ...................................................... 18

With No Vent Option and With CRV & ERV............... 18

Installation Instructions

Mounting the Unit & Wiring — Main Wiring................ 21

Wiring—Low Volt. Wiring & Low Volt.Connections ....22

Start Ups

R-410A Refrigerant Required..................................... 30

Topping Off System Charge .......................................30

Safety Practices ......................................................... 30

Description of Standard Equipment............................ 31

Important Installer Note.............................................. 31

Phase Monitor ............................................................ 3 1

Three Phase Scroll Compressor ................................ 31

Figures

Figure 1 Unit Dimensions ..........................................7

Figure 2A & 2B Unit on Lift & Unit Side........................ 8

Wall Mounting Bracket Location....................................9

Bracket Wall Sect. View & Wood Framed Install ........ 10

Figure 3 Center of Gravity ....................................... 11

Figure 4 Req. Clearances & Rec. Access ...............12

Figure 5 Compressor Shipping Bolts ....................... 13

Figure 6 Removal of Air Duct...................................13

Figure 7A Ducted Application.....................................14

Figure 7B 3" Riser Application ................................... 15

Figure 7C 6" Riser Application ................................... 16

Figure 8 Supply Duct Connections .......................... 17

Figure 9 Filter Location ............................................ 17

Figure 10 Drain Locations ......................................... 18

Figures 11A & 11B Unit Mounting....................... 19 & 20

Figure 12 Component Location ................................. 2 1

Figure 13 Basic Heat Pump w/No Vent Pkg. .............23

Figure 14 HP w/CRV, without CO

Figure 15 HP with CRV & CO2 Control ...................... 25

Figure 16 HP with ERV, w/o CO

Figure 17 HP with ERV & CO2 Control ......................27

Figure 18 HP w/ERV & CO2 Control (Fully Mod.) ...... 28

Figure 19 HP w/Comb. CRV & DB Econ. ("N" Vent) .... 29

Figure 20 Defrost Cycle .............................................33

Figure 21 CRV Motor Speed/CFM Configuration ...... 35

Figure 22 CRV Speed Change Terminal Access .......36

Figure 23 Economizer Control Circuit........................38

Figure 24 Motor Speed / CFM Configuration ............. 39

Fig. 25A ERV Manual Mode "M" Terminal ............... 43

Fig. 25B ERV Mod. Mode "P" Terminal.................... 43

Figure 26 Ventilation Airflow Diagram........................ 44

Figure 27 ERV Control Access ..................................45

Figure 28 Control Board Config./Setting....................46

Control................. 24

Control................... 26

Service Hints .............................................................. 31

Sequence of Operation .............................................. 32

Pressure Service Ports...............................................32

Lowering Outdoor Fan Speed for Sound .................... 32

Defrost Cycle.............................................................. 3 3

I-TEC Commercial Room Ventilator System

Gen. Description, Control Wiring & Rec. Seq. ...........34

Setting the Ventilation CFM Levels ............................34

I-TEC Comb. CRV & Economizer Vent System

Description & Control Wiring...................................... 37

Setting the Ventilation CFM Levels ............................37

Economizer Seq. of Operation ...................................38

Heating & Vent Mode ................................................. 39

I-TEC Energy Recovery Ventilator System

General Description & Control Wiring ........................ 40

Recommended Control Sequences ...........................41

Changing Ventilation CFM Rates in Manual Mode .... 41

Changing to Fully Modulating Mode...........................41

Configuring Control for ERV Mod. Control ............47-48

Maintenance (Gen., Frequency, Clean & Perform.).....49-50

Troubleshooting

Solid State HP Control Troubleshooting Procedure ... 51

Checking Temperature Sensor...................................52

Troubleshooting ECM™ 142R Motor ................ 43 & 54

Replacing the Motor .................................................. 54

Troubleshooting Indoor ECM™ Motor.................. 55-56

Fan Blade Setting Dimensions................................... 57

Refrigerant Charge..................................................... 57

Figures (continued)

Figure 29 Hub Assembly w/Ball Bearings.................. 50

Figure 30 Control Disassembly ................................. 56

Figure 31 Winding Test..............................................56

Figure 32 Drip Loop ...................................................56

Figure 33 Control Connector Motor Half.................... 57

Tables

Table 1 Factory Built-In Electric Heat Table .............. 5

Table 1A Indoor Blower Performance.......................... 5

Table 2 Elec. Specifications....................................... 6

Center of Gravity Reference Table.............................. 11

Table 3 Operating Voltage Range ........................... 22

Table 4 Wall Thermostats........................................ 22

Low Voltage Connections for DDC Control................. 22

Performance & App. Data:

Summer Cooling & Winter Heating ............ 42

Table 5 Troubleshooting .......................................... 51

Table 6 Temp. vs Resistance of Temp. Sensor .......52

Table 7 Troubleshooting ECM™ 142R.................... 54

Table 8 Cooling Mode.............................................. 54

Table 9 Heat Pump Mode........................................ 54

Troubleshooting ECM™ Blower Motors ...................... 57

Power Connector ........................................................ 57

Table 10A Pressures: Full Load Cooling ..................... 58

Table 10B Pressures: Full Load Heating ..................... 58

Table 11A Pressures: Part Load Cooling..................... 59

Table 11B Pressures: Part Load Heating .................... 59

Manual 2100-549G Page 2 of 59

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard.

National Electrical Code ..................... ANSI/NFPA 70

Standard for the Installation ............. ANSI/NFPA 90A

of Air Conditioning and Ventilating Systems

Standard for Warm Air ......................ANSI/NFPA 90B

Heating and Air Conditioning Systems

Load Calculation for ....................... ACCA Manual J or

Winter and Summer 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 Conditioning Contractors of America

1712 New Hampshire Avenue Washington, DC 20009 Telephone: (202) 483-9370 Fax: (202) 234-4721

ANSI American National Standards Institute

11 West Street, 13th Floor New York, NY 10036 Telephone: (212) 642-4900 Fax: (212) 302-1286

ASHRAE American Society of Heating, Refrigeration,

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E. Atlanta, GA 30329-2305 Telephone: (404) 636-8400 Fax: (404) 321-5478

NFPA National Fire Protection Association

Batterymarch Park P.O. Box 9101 Quincy, MA 02269-9901 Telephone: (800) 344-3555 Fax: (617) 984-7057

Manual 2100-549G Page 3 of 59

GENERAL

The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.

The I-TEC must be installed with the Bard manufactured IWS wall sleeve and ILG louver grille accessories. These are sold as separate accessories. Any substitutions will void the manufacturer’s warranty.

The unit is designed for use with or without ductwork. For use without ductwork, Plenum Box IPBDF8-color (8" height) or IPBDF12-color (12" height) is recommended.

These instructions explain the recommended method to install the air cooled self-contained unit and the electrical connections to it.

These instructions and any instructions packaged with any separate equipment required to make up the entire heating and air conditioning system should be carefully read before beginning the installation. Note particularly “Start Procedure” and any tags and/or labels attached to the equipment.

While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See Page 3 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss or heat gain calculation 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 Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.

ANSI Z535.5 Definitions:

• Danger: Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury. The signal word “DANGER” is to be limited to the most extreme situations. DANGER [signs] should not be used for property damage hazards unless personal injury risk appropriate to these levels is also involved.

• Warning: Indicate[s] a hazardous situation which, if not avoided, could result in death or serious injury. WARNING [signs] should not be used for property damage hazards unless personal injury risk appropriate to this level is also involved.

• Caution: Indicate[s] a hazardous situation which, if not avoided, could result in minor or moderate injury. CAUTION [signs] without a safety alert symbol may be used to alert against unsafe practices that can result in property damage only.

• Notice: [this header is] preferred to address practices not related to personal injury. The safety alert symbol shall not be used with this signal word. As an alternative to “NOTICE” the word “CAUTION” without the safety alert symbol may be used to indicate a message not related to personal injury.

Manual 2100-549G Page 4 of 59

I-TEC Series General Information

I-TEC MODEL NOMENCLATURE

I 36 H 1 D A 0Z R P 4 X X 2

MODEL SERIES

NOMINAL

CAPACITY

30 = 30,000 BTUH 36 = 36,000 42 = 42,000 48 = 48,000 60 = 60,000

SYSTEM TYPE:

HEAT PUMP

REVISION

SPECIAL UNITS

(–) = Standard D = Dehum.

VOLTS & PHASE |

A = 230/208, 60-1 B = 230/208, 60-3 C = 460-60-3

ELECTRIC HEAT

0Z = No heat w/breaker 04 = 4KW 1-Phase 05 = 5KW 1-Phase 06 = 6KW 3-Phase 09 = 9KW 3-Phase 10 = 10KW 1-Phase 15 = 15KW 1 & 3-Phase 18 = 18KW 3-Phase 20 = 20KW 1-Phase

VENTILATION OPTIONS

B = Blank-Off Plate M =Multi-Speed CRV N = Comb. CRV & DB Economizer R=ERV

FILTER OPTIONS

P = 2" Pleated MERV 8 M = 2" Pleated MERV 11 N = 2" Pleated MERV 13

RESERVED

COLOR OPTIONS

X - Beige paint 1 - White paint 4 - Gray paint

COIL 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 T erminal Block Only w/o

CompleteStat

1 = CompleteStat THO (Temp,

Humidity & Occupancy) 2 = CompleteStat THO w/CO2 3 = CompleteStat THO w/Ethernet 4 = CompleteStat THO w/CO2 &

Ethernet

Note: CompleteStat must be field

installed & wired. All units have

24V terminal block.

TABLE 1

FACTORY BUILT-IN ELECTRIC HEAT TABLE

sledoM A-1H03I B-1H03I C-1H03I

0.4 256,31932,01

0.5560,71997,21560,71997,21560,71997,21560,71997,21

0.6874,02953,51874,02874,02953,51874,02874,02953,51874,02

0.9717,03830,32717,03717,03830,32717,03717,03830,32717,03

0.01031,43895,52031,43895,52031,43895,52031,43895,52

0.51591,15693,83591,15693,83591,15591,15693,83591,15693,83591,15591,15693,83

0.81 434,16670,64434,16

0.02 062,86591,15062,86591,15

1-V042 1-V802 3-V042 3-V802 3-V064 1-V042 1-V802 3-V042 3-V802 3-V064 1-V042 1-V802 3-V042 3-V802 3-V064 1-V042 1-V802

HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB HUTB

A-1H63I A-1H24I

B-1H63I B-1H24I

C-1H63I C-1H24I

A-1H84I

B-1H84I B-1H06I

C-1H84I C-1H06I

A-1H06I

TABLE 1A

INDOOR BLOWER PERFORMANCE

22222

suounitnoC

ledoM PSEdetaR PSE.xaM

1H03I 1H63I 1H24I 1H84I 1H06I

1 Motor will deliver consistent CFM through voltage supply range with no deterioration. 2 Continuous fan CFM is the total air being circulated during continuous fan mode. 3 Will operate at rated Full Load Airflow when operating with Heat Pump. 4 Will occur automatically with a call for "W3" or "Emergency Heat" signal from the thermostat (Heat Pump Operation is

terminated at this condition).

51.05.00050090560070041

51.05.000605110580070041

02.05.005600310590070041

02.05.0527005105010070041

02.05.0058007100210070041

MFC

dn2detaR MFCegatS

33333

ts1detaR

MFCegatS

WK9-5

MFC

44444

81-5.31

MFCWK

Manual 2100-549G Page 5 of 59

TABLE 2

ELECTRICAL SPECIFICATIONS

tiucriCelgniS tiucriClauD

mumixaM

.rkrB.tkCro

011

001 001 021

dleiF

esuFlanretxE

rewoP

8 8 4

01 8 8

01 8 6 4 4

01 8 8 6

01 8 6 4 4 8 8 6 6

01 8 6 6 3 3 2 8 8 6 6 6

4 3 3 2

8 6 6 6

dnuorG

eriW

eziSeriW

01 01

01 01 01 41 21 01 01

01 8 8

01 8 8 8 6

8 8 8 6

01 8

1 51A

1 51B

1 51C

1 51A

1 51B

1 51C

1 51A 1 02A

1 51B 1 81B

1 51C 1 81C

1 51A 1 02A

1 51B 1 81B

1 51C 1 81C

detaR

ledoM

Z0A-1H03I 50A 01A

Z0B-1H03I 60B 90B

Z0C-1H03I 60C 90C

Z0A-1H63I 50A 01A

Z0B-1H63I 60B 90B

Z0C-1H63I 60C 90C

Z0A-1H24I 50A 01A

Z0B-1H24I 60B 90B

Z0C-1H24I 60C 90C

Z0A-1H84I 40A 50A 01A

Z0B-1H84I 60B 90B

Z0C-1H84I 60C 90C

Z0A-1H06I 50A 01A

Z0B-1H06I 60B 90B

Z0C-1H06I 60C 90C

ztreH,stloV

esahPdna

1-802/032

3-802/032

3-064

1-802/032

3-802/032

3-064

1-802/032

3-802/032

3-064

1-802/032

3-802/032

3-064

1-802/032

3-802/032

3-064

dleiF.oN rewoP stiucriC

1 1

2ro1 1 1 1 1 1 1 1 1

2ro1

2ro1 1 1 1 1 1 1 1 1 1 1

2ro1

2ro1 1 1 1 1 1 1 1 1 1 1

2ro1

2ro1 1 1 1 1 1 1 1 1 1 1 1 44 06 8 01

2ro1

2ro1 1 13 54 8 01 1 1 1

2ro1 1 51 02 21 21 1 1 1 1

muminiM

tiucriC

yticapmA

22 84 47 71 53 44

81 22 62 25 87 48 22 04 94 15 11 02 42 82 03 65 28 28 52 34 25 25 21 12 62 82 43 45 95 58 58

011 62 44 35 35 35 51 52 92 92 92

07 69 69

211

94 85 85 36

52 92 92 92

53 05 08 52 53 54 01 02 52 04 06 08 09 03 54 05 06 51 02 52 03 54 06 09 09 53 05 06 06 51 52 03 03 05 06 07 09 09

53 05 06 06 06 02 03 03 03 03

06 06 06 07

03 03 03 03

These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest revision), article 310 for power conductor sizing. Caution: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special

attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than three conductors are in a raceway. Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes. Maximum KW that can operate with heat pump on is 10KW for 1-Phase and 9KW for 3-Phase. 1 Represents Electric Heat Only. Electrical Control Circuit will lockout Heat Pump Operation.

Manual 2100-549G Page 6 of 59

muminiM tiucriC

yticapmA

A.tkC B.tkC A.tkC B.tkC A.tkC B.tkC A.tkC B.tkC

84 03 05 03 8 01 01 01

13 45 54 06 8 6 01 01

mumixaM

esuFlanretxE

rekaerB.tkCro

dleiF

rewoP

eziSeriW

6 6

8 8 8 6

01 6 6 6

dnuorG

eriW

01 01

01 01 01 01

01 01

01 01 01 01

Back View

Air

Supply

Air

Return

Sleeve

Outer

Inner

Sleeve

(2) Opt.

Unit Drain

Entrances

MIS-2917 A

8 31

Unit Specification Sheet

FIGURE 1

UNIT DIMENSIONS

20" x 24" Supply Frame

" Total Width

20"

Air

Return

Openings

(2) Return

Right Side View

30" With Doors and

Sleeve

Outer

Sides Removed

Total Depth

26 "

High Voltage

Entrance

" 11

Wire Channel

Electric Heat

Hinges

(4) Lift-Off

Locking

Inner

94"

Door Latch

Sleeve

Upper

Total

Height

(2) Side

" 71

Section

Drains

(2) Unit

Handles

58"

Door Latch

Disconnect

Electrical

Locking

Lower

Section

(Remove Sides)

Side Forklift Holes

Front Forklift Holes

(Remove Front Trim)

Top View

" With Sides Removed

" 11

24"

1 24

Low Voltage

Entrance

Filters

Front View

(2) 2"x24"x30"

Return Air

Control Panel

Air Filters

Vent Intake

(2) Washable

Air Filters

(2) 12" x 20"

Vent Exhaust

Manual 2100-549G Page 7 of 59

SHIPPING DAMAGE

Upon receipt of equipment, the unit should be checked for external signs of shipping damage. The skid must remain attached until the unit is ready for installation. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent.

UNIT REMOVAL FROM SKID

WARNING

This unit is heavy and requires more than one person to handle during installation and removal from the skid. Extreme caution must be taken to prevent injury to personnel and damage to the unit. Use appropriate safety equipment, including gloves when handling. Failure to do so may result in serious injury.

A forklift or a lift rated for the load (Figure 2A) is required to lift the unit off from the skid. This unit is top heavy and should never be tipped while moving it.

The I-TEC is designed to be lifted off the skid from the front or rear of the unit without having to remove any doors or side panels. See Figure 1 for fork openings. The shipping brackets on front and rear of the unit must be removed and discarded. The unit can now be lifted straight up and the skid can be slid out from underneath.

Tip unit from left side only.

Failure to do so may result in injury due to unit

top-heaviness or compressor damage!

FIGURE 2A — UNIT ON LIFT

HANDLING UNIT AFTER REMOVAL FROM SKID

If a wide and tall enough opening exists, the I-TEC can be moved as a complete assembled unit. If not, it is designed to break down into two sections to allow it to pass through a 36 inch wide door.

1. Depress & release both top & bottom door latches and open doors.

2. Remove the doors by lifting straight up and off from the hinge pins.

Remove cabinet sides by first removing the four (4) sheet metal screws from the front (leading edge) of the side panel. The panel will not fall off. Swing the panel away from the chassis 20 to 30 degrees & then pull forward from the two (2) tabs supporting the rear edge.

4. On each side of the unit is a tie plate that secures the top and bottom sections with four (4) cap bolts. Using a ½ inch wrench or socket, remove these screws from both plates and set aside.

5. If the unit is equipped with a CRV or ERV, you must unplug the wire harness on the left-hand side of the control box.

A forklift or a lift rated for the load is required to lift the top section off from the bottom base. Do not attempt to do this manually. Failure to do so could result in the unit tipping over & causing bodily injury and/or damage to the unit.

7. The top section can be forked from either the RH or LH side. See Figure 1 for fork openings.

Carefully lift the top section straight up avoiding tipping.

9. Move the top section through the doorway and place on flat surface free of debris.

10. The bottom base can now be moved through the doorway the same way.

11. Reassemble the unit by reversing this procedure.

Manual 2100-549G Page 8 of 59

FIGURE 2B UNIT SIDE

ERV/CRV

HARNESS CONNECTION

(4) CAP BOLTS

FORK OPENING

(Visible after removing tie plate)

(Covers entire width; shortened for illustration purposes to show Fork Openings)

TIE PLATE

REQUIRED STEPS AFTER FINAL PLACEMENT

The compressor is secured to the base with two (2) bolts for shipping. Although the unit will perform as designed with the shipping bolts in place, there may be a noticeable additional noise and vibration noted. To obtain the lowest noise and vibration levels, remove the shipping bolts after the unit is in its final operating location. To gain access to the compressor, the compressor access panel must be removed (Figure 9). Once this panel is removed, the CRV/ERV air duct must be removed. See Figure 6.

The air duct is removed by pulling it straight toward you; there are no screws securing it in place. Both the top and bottom slide toward you at the same time (pull hard). Once removed, the compressor is visible as well as the tags on the shipping bolts (Figure 5).

After the compressor shipping bolts have been removed, the CRV/ERV air duct can be slid back in place and the compressor access panel attached.

MINIMUM INSTALLATION HEIGHT

The minimum installation height to the bottom of the roof or fixed ceiling for ducted applications is 9 ft. 7 in. This provides enough clearance to install the duct work. See Figure 7A.

The IWS Series wall sleeve has a built-in vertical adjustment to fit window sill heights from 31-34 inches. If additional height is required, two riser platform accessories are available. The IRP3 increases the unit height by 3 inches (Figure 7B) and the IRP6 by 6 inches (Figure 7C).

Several construction options are available for unit installation of the IZ Series. Serviceability and filter access must be considered before installing. See Figure 5D for required clearances and recommended service access dimensions.

1 11/16"

SECURING UNIT TO STRUCTURE

Shipped with the I-TEC unit is a wall mounting bracket (screwed to shipping skid on backside of unit). This bracket can be utilized to secure the top portion of the unit to the wall using the appropriate field supplied hardware based upon the material you are fastening to.

(There are several offset holes, sized to accept up to a 1/4" diameter fastener that will easily allow you to hit studs on a framed wall.) See BRACKET SECTION

VIEW for locating this top wall bracket which will need to be applied after the unit is located in the final position.

Additional/optional mounting holes for up to a 3/8" diameter fastener are also available in the backside of the unit. These can be accessed by:

• removing the air filters for the uppermost set

• removing the compressor section service door for

the lower set

Refer to WOOD FRAMED INSTALLATION for additional framing required to secure unit to wall.

The additional/optional mounting holes will require a long extension to drive the fasteners.

SEISMIC CONSIDERATIONS

The I-TEC product features several locations for product securement but all site conditions are different. Consult with a licensed Seismic Engineer to advise of particular needs when attaching the I-TEC unit to the structure.

WALL MOUNTING BRACKET LOCATION

43 3/8"

Ø1/4"

BRACKET

3/4"

1 1/2"

7/8"

94" FROM BOTTOM

OF BRACKET TO

FLOOR WITHOUT

RISER KIT

MIS-3029

Manual 2100-549G Page 9 of 59

Optional

Duct

BRACKET WALL SECTION VIEW

Ceiling

Supply Duct

Optional

Trim or

Box

Outside Wall

Telescoping Wall Sleeve**

Outside

Wall

Optional Top

Bracket

(4) optional Unit

Mounting holes

Sleeve Mounting

Hole Locations

Centered on

Opening

Centered

42-3/4" Min. 43-1/4" Max.

20 "

7 8

48" Min.

Grille

48-1/2" Max.

Centered

(4) optional Unit

Mounting holes

Unit

Floor

18 3/4

Right Side View

31" Min.

34" Max.

31" Min.

34" Max.

20"

7 3/8

* Higher Sill Heights Acheivable With Base Kit. ** Separate telescoping sleeves available for different wall thicknesses.

Front (Wall Only) View

35"

20"

17.5"

WOOD FRAMED INSTALLATION (for Wall Attachment)

41.75

Inner wall

(4) Upper fastener holes

20"

Room Floor Level

" 49

" 11 4

" 29

FLOOR MOUNTING HOLE & CENTERLINES

MIS-2918 C

Manual 2100-549G Page 10 of 59

Unit

Floor

(4) lower fastener holes

20.88

6.00

56.50

29.56 8.00

8.00 36.88

* Height dimension shown without riser kit. If unit uses riser kit add appropriate dimension to height.

MIS-3072

CENTER OF GRAVITY

"X"

FIGURE 3

CENTER OF GRAVITY

"Z"

"Y"

MIS-3269

TINUFOTNORF

DETSETTINU

B-,A-1H03I

C-1H03I

B-,A-1H63I

C-1H63I

B-,A-1H24I

C-1H24I

B-,A-1H84I

C-1H84I

B-,A-1H06I

C-1H06I

RETNECOTROOD

noisnemiD"X" noisnemiD"Y" noisnemiD"Z" noisnemiD"Z"

"41"42"½34"74 "41"¼42"½34"74 "41"42"½34"74

"41"¼42"½34"74 "41"42"½34"74 "41"¼42"½34"74 "41"42"½34"74 "41"¼42"½34"74 "41"42"½34"74 "41"¼42"½34"74

EDISTFEL

RETNECOT

RETNECOTROOLF

VRE&VRC

RETNECOTROOLF

TNEVON

Manual 2100-549G Page 11 of 59

FIGURE 4

REQUIRED CLEARANCES & RECOMMENDED ACCESS

WING WALL CONSTRUCTION TOP VIEW

12" MIN. 12" MIN.

CLOSET CONSTRUCTION TOP VIEW

31 3/8"

12" MIN. 12" MIN.

48" MIN.

LEFT CORNER CONSTRUCTION TOP VIEW

0" REQUIRED

12" RECOMENDED

RIGHT CORNER CONSTRUCTION TOP VIEW

12" MIN.

FOR LEFT

SIDE

ACCESS

RECOMMENDED SERVICE

ACCESS DIMENSIONS

FILTERS

24" MIN. 24" MIN.

48"

MIN. FOR

FILTER ACCESS

12" MIN.

FOR RIGHT

SIDE

ACCESS

Manual 2100-549G Page 12 of 59

0" REQUIRED

12" RECOMENDED

MIS-3273

FIGURE 5

COMPRESSOR SHIPPING BOLTS

COMPRESSOR

SHIPPING BOLT

COMPRESSOR

SHIPPING BOLT

FIGURE 6

REMOVAL OF AIR DUCT

CRV / ERV

AIR DUCT

Manual 2100-549G Page 13 of 59

FIGURE 7A

DUCTED APPLICATION – BASIC UNIT

TURNING VANES

FIELD SUPPLIED DUCT

9'-2"

MINIMUM

HEIGHT

REQUIRED

INSTALLATION

MIS-2958 B

RECOMMENDED

FLOOR

12"

MINIMUM

DUCT BOTTOM

TOP OF UNIT TO

4" MINIMUM FROM

OR FIXED CEILING

BOTTOM OF ROOF

Manual 2100-549G Page 14 of 59

20"

MINIMUM

SUSPENDED

CEILING

CLEARANCE

RECOMMENDED TO

9'-7" MINIMUM

BOTTOM OF ROOF

OR FIXED CEILING

7'-9 3/4"

UNIT HEIGHT

FIGURE 7B

3" RISER APPLICATION

TURNING VANES

RECOMMENDED

FIELD SUPPLIED DUCT

12"

9'-5"

REQUIRED

HEIGHT

INSTALLATION

MINIMUM

MIS-2989 B

FLOOR

DUCT BOTTOM

TOP OF UNIT TO

MINIMUM

4" MINIMUM FROM

OR FIXED CEILING

BOTTOM OF ROOF

20"

MINIMUM

SUSPENDED

CEILING

CLEARANCE

RECOMMENDED TO

9'-10" MINIMUM

BOTTOM OF ROOF

OR FIXED CEILING

7'-9 3/4"

UNIT HEIGHT

3" RISER

Manual 2100-549G Page 15 of 59

TURNING VANES

RECOMMENDED

FIELD SUPPLIED DUCT

FIGURE 7C

6" RISER APPLICATION

9'-8"

MINIMUM

REQUIRED

MIS-2988 B

HEIGHT

INSTALLATION

FLOOR

BOTTOM OF ROOF

OR FIXED CEILING

12"

MINIMUM

20"

MINIMUM

DUCT BOTTOM

TOP OF UNIT TO

4" MINIMUM FROM

10'-1" MINIMUM

CLEARANCE

RECOMMENDED TO

BOTTOM OF ROOF

OR FIXED CEILING

Manual 2100-549G Page 16 of 59

SUSPENDED

CEILING

7'-9 3/4"

UNIT HEIGHT

6" RISER

DUCT WORK

Any heat pump is more critical of proper operating charge and an adequate duct system than a straight air conditioning unit. All duct work must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage. When duct runs through unheated spaces, it should be insulated with a minimum of one inch of insulation. Use insulation with a vapor barrier on the outside of the insulation. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum.

The I-TEC series heat pump has provision to attach a supply air duct to the top of the unit. Duct connection size is 20 inches x 24 inches. The flanges are shipped flat and must be bent upward using sheet metal flanging pliers. The duct work is field supplied. See Figure 8 for suggested attachment method.

Make sure to seal the slots in the bend-up flange at the time of securing your ductwork to the flange. This can be accomplished with either foil tape or caulk. Failing to do so may cause air leakage/whistling of air.

FIGURE 8

SUPPLY DUCT CONNECTIONS

a floor mounted install (9'-9" with IRP3 riser & 10'-0" with IRP6 riser). The ICX10 extends 28" above the unit for a total height of 10'-2" for a floor mounted install (10'-5" with IRP3 riser & 10'-8" with IRP6 riser).

The unit is equipped with a variable speed indoor blower motor which increases in speed with an increase in duct static pressure. The unit will therefore deliver proper rated airflow up to the maximum ESP shown in Table 1A. However, for quiet operation of the air system, the duct static should be kept as low as practical, within the guidelines of good duct design.

FILTERS

Two 2-inch throw away filters (24 x 30) and two 1inch throw away filters (12 x 20) are supplied with each unit. The 2-inch filters slide into brackets on both sides for the return air openings. The 1-inch filters are in the cabinet doors for the vent (room air) exhaust. If a CRV or ERV vent option is used, there are two (2) additional ½" (8 x 17) washable filters included with that option. See Figure 9 for specific locations. The filters are serviced from the inside of the building by opening the cabinet doors, and do not require any tools to access.

FIGURE 9

FILTER LOCATION

24" X 30" X 2"

FILTERS

24"

20"

SUPPLY DUCT AND FASTENERS TO BE FIELD SUPPLIED

BEND THE PROVIDED SUPPLY FRAME FLANGES UP FOR DUCT INSTALLATION

MIS-2959

NOTE: Unit cabinet, supply air duct and duct free

plenum are approved for “0” clearance to combustible material.

The I-TEC series heat pumps are designed for use with free return (non-ducted) and either duct free with the use of IPBDF Series Plenum Box (8" or 12") or a duct supply air system.

The IPBDF Plenum Box mounts on top of the unit and has both vertically and horizontally adjustable louvers on the front discharge grille.

When used with a ducted supply, an ICX9 or ICX10 Cabinet Extension may be used to conceal the ductwork above the unit to the ceiling. The ICX9 extends 20" above the unit for a total height of 9'-6" for

INDOOR

BLOWER

ACCESS

COMPRESSOR

ACCESS

ACCESS TO

WASHABLE

FILTERS

VENT

OPTION

ACCESS

12" X 20" X 1"

FILTERS

Manual 2100-549G Page 17 of 59

CONDENSATE DRAIN

There are two condensate drain connections from the condenser drain pan (compressor area). These are visible from the rear of the unit. Factory installed tubing connects the two drains at a tee connection and then a single drain hose with a barbed hose connector carries the condensate to the draining option of your choice. Enough tubing is provided to reach all drain options and can be cut down in length.

The unit is shipped from the factory with the drain line on the left-hand side as you look at the rear of the unit. The tubing can be removed from the drain connections and flipped for a right-hand drain. See Figure 10.

The drain can be routed directly through the floor or through the wall. There are also two optional drain locations in the lower rear back panel. See Figure 8.

The I-TEC design does not require a trap in the condensate disposal tubing. Check your local codes to see if a “P” trap is required.

For a stand pipe floor drain or through the wall, there is adequate hose length to reach anything located behind the unit. The lower rear portion of the cabinet is recessed approximately 4 inches allowing room for a “P” trap to be installed with the cabinet flush with the wall. Keep in mind, the drain line must be able to be removed from the unit if necessary to remove the unit from the wall.

Access plates are located on the rear of the unit for servicing the drain trap. See Figure 10. If the drain line

is to be routed through an unconditioned space, it must be protected from freezing.

The condensate drain line can also be routed back into the unit through either the 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 inches in from the front on both the left and right side are drain holes in the bottom of the base. These holes are covered with insulation and are not visible. They are located very close to the side panels and can be found by pressing down on the insulation. Cut insulation away to expose the hole. A drain trap can now be installed inside of the cabinet, and the drain hose routed directly through the floor.

Once the I-TEC is installed, the rear drains exiting the condenser section can be easily serviced with removal of the pre-painted metal sides (lift-off doors, remove four [4] screws to remove side).

If side access is not available, the drain lines and trap can be serviced by removing either one of the drain access panels on the rear of the unit (in the ventialtion package area.) See Figure 10.

WITH NO VENT OPTION

To access the drain access panels in the rear of this section, simply remove the front door/cover from the box, and the plates are located in the rear of the box.

Manual 2100-549G Page 18 of 59

WITH COMMERCIAL ROOM VENTILATOR

1. Open hinged front doors.

2. Disconnect unit power to eliminate shock hazard.

3. Remove front cover/door of CRV vent package. (Can leave filter access panels in place.)

4. Unplug wires coming in on left side from upper unit section.

Unplug two wire harness from front (intake) blower.

6. Remove two (2) screws securing front (intake) blower and slide blower out of unit.

7. Remove four (4) screws that retian the partition behind/beneath intake blower removed in Step #6.

8. Rear drain access panels are now visible on both right-hand and left-hand sides in rear of box.

WITH ENERGY RECOVERY VENTILATOR

To access the rear drain access panels of this section:

1. Open hinged front doors.

2. Disconnect unit power to eliminate shock hazard.

3. Remove front cover/door of ERV vent package. (Can leave filter access panels in place.)

4. Unplug wires coming in on left side from upper unit section.

Unplug heat recovery cassette on the side you wish to access, and slide cassette out the front of the unit.

6. Remove two (2) screws securing partition on outboard side of cassette and remove.

7. Rear drain access panels are now visible on both right-hand and left-hand sides in rear of box.

FIGURE 10 — DRAIN LOCATIONS

(2) Unit Drains

Drain Access Locations

(2) Optional

Unit Drain Entrances

" 8 3

WALL

7 3/16"

18 3/4"

MIS-2960 B

OPTIONAL FLOOR MOUNTING HOLES

16 1/2"

(2)OPTIONAL DRAIN HOLES

35"

FIGURE 11A

UNIT MOUNTING

Use (12) Field Supplied Concrete or Wood Screws to Secure Outer Sleeve to Structure.

IMPORTANT!

Apply liberal amount of caulk to back of flange before installing.

Use (6) 3/4" Long Self Tapping Screws

REF.

to Attach Inner Sleeve to Outer Sleeve

IMPORTANT!

Apply Caulk bead to entire perimeter seam between inner and outer sleeve.

IMPORTANT!

Use care when inserting screws to not damage gasketing material. Doing so may compromise water seal between unit and sleeve.

Use (12) 3/4" Long Self Tapping Screws

REF.

to Attach Inner Sleeve to Unit Back

(16) 5/16" - 3/4" SEL F T APPING

(6) 5/16" - 3/4" NON-TAPPING (4) 5/16" - 1/2" NON-TAPPING

REF.

A AND B

REF.

Use (6) 3/4" Long

Screws to Attach

Exhaust Sleeve to

Unit Fan Shroud

Pull Inner Frame Out Until Flush With Grille Mounting Angle

Use (4) 1-1/2" Long Screws to Attach Louver Grille to Outer Sleeve.

Use (4) 1/2" Long Screws to Attach

REF.

frame to Exhaust

Sleeve

MIS-3014

Manual 2100-549G Page 19 of 59

OUTSIDE WALL (INSULATED)

AREA BETWEEN WALL AND SLEEVE (INSULATED)

OUTDOOR GRILLE

FIGURE 11B

UNIT MOUNTING

INSIDE WALL

(SIZE VARIES)

I-TEC UNIT

SLEEVE

FILL INSULATION

DRAIN AREA INSULATED WITH 6" BATT MATERIAL

INTERIOR FLOOR

MIS-2928 B

Manual 2100-549G Page 20 of 59

INSTALLATION INSTRUCTIONS

MOUNTING THE UNIT

The wall sleeve is attached to the I-TEC unit from the outside of the building. See Figures 11 A & 1 1B. Refer to wall sleeve Manual 2100-562 supplied with sleeve.

Following are the steps for attaching the I-TEC to the wall sleeve.

. Lift the unit into place making sure that it is

aligned side to side.

2. Push the unit back until the rear panel touches the sleeve gasket.

3. This unit must be level from side to side and from front to back. If adjustments are necessary, shim up under the base rails with sheets of metal or any substance not affected by moisture.

4. Attach the sleeve to the unit using the ten (10) long self-tapping screws supplied with the sleeve.

The exhaust sleeve has three (3) ¾" long screw slots in each side flange. Line these up with the screw engagement holes in the fan panel. Attach using six (6) ¾" long pointed sheet metal screws supplied with the sleeve. Extend the sleeve out until it is flush with the louver grill attachment angles.

6. Lock the sleeve in place using two (2) pointed

sheet metal screws on each side by

½" long

shooting through the slot into a pre-punched hole.

7. A bottom trim piece is shipped loose for installation beneath the doors. Attach the trim piece to the unit with screws provided.

8. The compressor is secured to the base with two (2) bolts for shipping. Both bolts are identified with a tag. Remove shipping bolts (Figure 5).

¾"

WIRING – MAIN POWER

Refer to the unit rating plate and/or Table 2 for wire 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 current. Depending on the installed KW of electric heat, there may be two field power circuits required. If this is the case, the unit serial plate will so indicate. All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Only suitable for at least 75°C”. THESE INSTRUCTIONS MUST BE ADHERED TO. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material. All wiring must conform to NEC and all local codes.

The electrical data lists fuse and wire sizes (75°C copper) for all models, including the most commonly used heater sizes. Also shown are the number of field power circuits required for the various models with heaters.

The unit rating plate lists a “Maximum Time Delay Relay Fuse” or “HACR Type” circuit breaker that is to be used with the equipment. The correct size must be used for proper circuit protection, and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor.

See “START UP” section for information on three phase scroll compressor start-ups.

The field wiring conduit connections are located on the top right-hand corner of the unit with a wire raceway to feed the wires down to the circuit breaker(s). See Figure 12.

ELECTRIC HEAT

INDOOR BLOWER

LOW VOLTAGE

REFRIGERANT PORT

OUTDOOR FAN

VENT OPTION

FIGURE 12

COMPONENT LOCATION

WIRE RACEWAY

EVAPORATOR COIL

CONTROL PANEL

CONDENSER COIL

COMPRESSOR

Manual 2100-549G Page 21 of 59

WIRING – LOW VOLTAGE WIRING

230/208V, 1 PHASE AND 3 PHASE EQUIPMENT DUAL PRIMARY VOLTAGE TRANSFORMERS.

All Equipment leaves the factory wired on 240V tap. For 208V operation, reconnect from 240V to 208V tap. The acceptable operating voltage range for the 240 and 208V taps are as noted in Table 3.

TABLE 3 — OPERATING VOLTAGE RANGE

PATEGNAR

V042612–352 V802781–022

NOTE: The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition).

The standard unit includes a remote thermostat connection terminal strip. See Figures 13 through 19 for connection diagrams. Compatible thermostats are listed in Table 4.

TABLE 4 — WALL THERMOSTATS

tatsomrehTserutaeFtnanimoderP

060-3048

)544-0211(

760-3048

)YLR-DCL-04W2-TDC(

OHT-B9SC

COHT-B9SC

OHT-EB9SC

COHT-EB9SC

sgnidaeRrosneS

taeHegats3;looCegats3

cinortcelEelbammargorP-noN/elbammargorP

lanoitnevnoCroPH

revoegnahclaunaMrootuA

rofDCLhtiwrosneSedixoiDnobraC

/wrosneSytidimuH,revoegnahClaunaMrootuA

elbitapmoc-tenCAB,lortnoC

/wrosneSytidimuH,revoegnahClaunaMrootuA

/wrosneSnoitoM,rosneS2OC,noitacifidimuhed

elbitapmoc-tenCAB,lortnoCgninraeLtnegilletnI

/wrosneSytidimuH,revoegnahClaunaMrootuA

elbitapmoc-tenrehtE,elbitapmoc-tenCAB,lortnoC

/wrosneSytidimuH,revoegnahClaunaMrootuA

/wrosneSnoitoM,rosneS2OC,noitacifidimuhed

,elbitapmoc-tenCAB,lortnoCgninraeLtnegilletnI

elbitapmoc-tenrehtE

“W2” terminal is first stage electric heat (if equipped). First stage electric heat can be operated simultaneously with the heat pump operating.

“A” terminal is the ventilation input. This terminal energizes any factory installed ventilation option.

“W3” terminal is second stage electric heat. When “W3” terminal is energized, it locks out compressor operation to limit discharge air temperature and required branch circuit ampacity.

“D” terminal is the dehumidification mode (on models so equipped).

NOTE: For total and proper control using DDC, a minimum of 9 controlled outputs are needed when above 10KW Electric Heat is employed with ventilation, a total of 8 controlled outputs with below 10KW Electric Heat with Ventilation, 7 controlled outputs below 10KW Electric Heat with no ventilation, 7 controlled outputs with no Electric Heat, but with ventilation, and 6 controlled outputs with no electric heat and no ventilation. If Dehumidification Model & Vent, 10 controlled outputs are needed when above 10KW Electric Heat is employed with ventilation.

LORTNOCCDDROFSNOITCENNOCEGATLOVWOL

ylnOnaFGezigrenE

daoLtraPgnilooC1Y,GezigrenE

,vnoCroPH,gorPnoN/gorP,looCegatS3,taeHegatS3

gninraeLtnegilletnI/wrosneSnoitoM,noitacifidimuhed

,vnoCroPH,gorPnoN/gorP,looCegatS3,taeHegatS3

gninraeLtnegilletnI,rosneSnoitoM,noitacifidimuhed

,vnoCroPH,gorPnoN/gorP,looCegatS3,taeHegatS3

daoLlluFgnilooC2Y,1Y,GezigrenE

daoLtraPgnitaeHPH1W/B,1Y,GezigrenE

daoLlluFgnitaeHPH1W/B,2Y,1Y,GezigrenE

)WK01otpu(

(taeHycnegremE noitarepopmuptaeH

noitalitneVAezigrenE

noitacifidimuheD

taeHcirtcelE+daoLlluFgnitaeHPH

ylnOtaeHcirtcelE1#knaBhtiwgnitaeH2W,GezigrenE

noitidnocsihtrofdetagensi )

ylnOnoitacifidimuheDhtiwsledoM

2W,1W/B,2Y,1Y,GezigrenE

3W,2W,GezigrenE

D,GezigrenE

GENERAL

LOW VOLTAGE CONNECTIONS

These units use a grounded 24 volt AC low voltage circuit.

“G” terminal is the fan input. “Y1” terminal is the compressor part load input. “Y2” terminal is the compressor full load input. “B/W1” terminal is the reversing valve input.

The reversing valve must be energized for heating mode.

“R” terminal is 24 VAC hot. “C” terminal is 24 VAC grounded. “L” terminal is compressor lockout output. This

terminal is activated on a high or low pressure trip and condensate overflow trip by the electronic heat pump control. This is a 24 VAC output.

Manual 2100-549G Page 22 of 59

This unit is equipped with a variable speed ECM motor. The motor is designed to maintain rated airflow up to the maximum static allowed. It is important that the

blower motor plugs are not plugged in or unplugged while the power is on. Failure to remove power prior to unplugging or plugging in the motor could result in motor failure.

CAUTION

Do not plug in or unplug blower motor connectors while the power is on. Failure to do so may result in motor failure.

Completestat Model #CS9B-THO or Model #CS9BE-THO

FIGURE 13

BASIC HEAT PUMP WITH NO VENTILATION PACKAGE

SCSC

24V

COM

W1/E

ADLO/BY2Y1

Thermostat Bard #8403-060

Low Voltage Term. Strip

W1/E

LO/BY2Y1RGCW2

YO/D

B/W1

R 3

Y2Y1RT GCW2

64W3 A DL

Factory installed jumper. Remove jumper and connect to N.C fire alarm

2 Not needed below 15KW

Additional wire required for dehumidification models

MIS-3016

Manual 2100-549G Page 23 of 59

Completestat Model #CS9B-THO or Model #CS9BE-THO

FIGURE 14

HEAT PUMP WITH CRV, WITHOUT CO

SCSC

COM

24V

W1/E

CONTROL

ADLO/BY2Y1

Thermostat Bard #8403-060

Low Voltage

R 3

Term. Strip

RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE

CRV Wiring Harness

YO/D

W1/E

LO/BY2Y1RGCW2

2 3

B/W1

Y2Y1RT GCW2

64W3 A DL

Factory installed jumper. Remove jumper and connect

to N.C fire alarm circuit if emergency shutdown required.

Not needed below 15KW.

Additional wire required for dehumidification models.

Manual 2100-549G Page 24 of 59

4 Connect to "G" terminal when thermostat has "Occupancy Signal".

Install a jumper between "G" and "A" only when thermostat

without "Occupance Signal" is used.

MIS-3017

Completestat Model #CS9B-THO or Model #CS9BE-THO

24V

SCSC

COM

FIGURE 15

HEAT PUMP WITH CRV AND CO2 CONTROL

W1/E

ADLO/BY2Y1

Thermostat Bard #8403-060

Low Voltage

R 6

Term. Strip

RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE

CRV Wiring Harness

NOTE: Bard 8403-060

thermostat must be

W1/E

LO/BY2Y1RGCW2

YO/D

in programmed operation mode and in programmed fan mode for ventilation to function.

2 3

B/W1

Y2Y1RT GCW2

4W3 A DL

Factory installed jumper. Remove jumper and connect

to N.C fire alarm circuit if emergency shutdown required.

Not needed below 15KW.

Additional wire required for dehumidification models.

CO2 Control

Bard #8403-067

4 Connect to "G" terminal when thermostat has "Occupancy Signal".

Install a jumper between "G" and "A" only when thermostat

without "Occupance Signal" is used. If CS9B-THOC or CS9BE-THOC is used, connect "Brown/White"

directly to "A" and do not use seperate CO2 controller.

MIS-3018

Manual 2100-549G Page 25 of 59

Completestat Model #CS9B-THO or Model #CS9BE-THO

24V

FIGURE 16

HEAT PUMP WITH ERV, WITHOUT CO

SCSC

COM

W1/E

CONTROL

ADLO/BY2Y1

Thermostat Bard #8403-060

Low Voltage

R 3

Term. Strip

RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE PINK PURPLE

ERV Wiring Harness

NOTE: Bard 8403-060

thermostat must be

W1/E

YO/D

LO/BY2Y1RGCW2

in programmed operation mode and in programmed fan mode for ventilation to function.

B/W1

Y2Y1RT GCW2

64W3 A DL

Factory installed jumper. Remove jumper and connect

to N.C fire alarm circuit if emergency shutdown required.

Not needed below 15KW.

Additional wire required for dehumidification models.

Manual 2100-549G Page 26 of 59

Connect to "G" terminal when thermostat has "Occupancy Signal".4 Install a jumper between "G" and "A" only when thermostat

without "Occupance Signal" is used.

MIS-3019

Completestat Model #CS9B-THO or Model #CS9BE-THO

HEAT PUMP WITH ERV AND CO

SCSC

COM

24V

FIGURE 17

CONTROL (ON/OFF CYCLING)

W1/E

ADLO/BY2Y1

Thermostat Bard #8403-060

Low Voltage

R 6

Term. Strip

RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE PINK PURPLE

ERV Wiring Harness

NOTE: Bard 8403-060

thermostat must be in programmed

W1/E

LO/BY2Y1RGCW2

YO/D

operation mode and in programmed fan mode for ventilation to function.

2 3

B/W1

Y2Y1RT GCW2

4W3 A DL

CO2 Control

Bard #8403-067

Factory installed jumper. Remove jumper and connect

to N.C fire alarm circuit if emergency shutdown required.

Not needed below 15KW.

Additional wire required for dehumidification models.

4 Connect to "G" terminal when thermostat has "Occupancy Signal".

Install a jumper between "G" and "A" only when thermostat

without "Occupance Signal" is used. If CS9B-THOC or CS9BE-THOC is used, connect "Brown/White"

directly to "A" and do not use seperate CO2 controller.

MIS-3020

Manual 2100-549G Page 27 of 59

Completestat Model #CS9B-THO or Model #CS9BE-THO

FIGURE 18

HEAT PUMP WITH ERV AND CO

SCSC

COM

24V

CONTROL (FULLY MODULATING)

W1/E

ADLO/BY2Y1

Thermostat Bard #8403-060

Low Voltage Term. Strip

RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE PINK PURPLE

ERV Wiring Harness

NOTE: Bard 8403-060

thermostat must be

W1/E

LO/BY2Y1RGCW2

YO/D

in programmed operation mode and in programmed fan mode for ventilation to function.

B/W1

Y2R

6Y1RT 3

4W3 AG

CO2 Control

Bard #8403-067

Factory installed jumper. Remove jumper and connect

to N.C fire alarm circuit if emergency shutdown required.

Not needed below 15KW.

Additional wire required for dehumidification models.

Manual 2100-549G Page 28 of 59

Connect to "G" terminal when thermostat has "Occupancy Signal".

Install a jumper between "G" and "A" only when thermostat

without "Occupance Signal" is used.

MIS-3021 A

FIGURE 19

HEAT PUMP WITH COMBINATION CRV AND DB ECONOMIZER (“N” VENT CODE)

Only Recommend Bard CS9B-THOC or CS9BE-THOC as Require 3 Heating/Cooling Stages

Completestat Model #CS9B-THOC or Model #CS9BE-THOC

24V

COM

O/BY1

W2 D

W1/E

Low Voltage

Term. Strip

RED/WHITE BLACK/WHITE ORANGE

GRAY

YELLOW

PURPLE BROWN/WHITE PURPLE/WHITE

YELLOW/BLACK

BLUE

CRV/ECON Wiring Harness

Factory installed jumper. Remove jumper and connect

to N.C fire alarm circuit if emergency shutdown required.

Not needed below 15KW.

3 Additional wire required for dehumidification models.

8W3

B/W1

Connect orange wire to "G" terminal

Y1R

Y2W2 L A

MIS-3270

Manual 2100-549G Page 29 of 59

START UP

THESE UNITS REQUIRE R-410A REFRIGERANT AND POL YOL ESTER OIL.

GENERAL:

1. Use separate service equipment to avoid cross contamination of oil and refrigerants.

2. Use recovery equipment rated for R-410A refrigerant.

3. Use manifold gauges rated for R-410A (800 psi/250 psi low).

4. R-410A is a binary blend of HFC-32 and HFC-125.

5. R-410A is nearly azeotropic - similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant.

6. R-410A operates at 40-70% higher pressure than R-22, and systems designed for R-22 cannot withstand this higher pressure.

7. R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.

8. R-410A compressors use Polyol Ester oil.

9. Polyol Ester oil is hygroscopic; it will rapidly absorb moisture and strongly hold this moisture in the oil.

10. A liquid line dryer must be used - even a deep vacuum will not separate moisture from the oil.

11. Limit atmospheric exposure to 15 minutes.

12. If compressor removal is necessary, always plug compressor immediately after removal. Purge with small amount of nitrogen when inserting plugs.

TOPPING OFF SYSTEM CHARGE

If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating (see criteria above), and charging to the nameplate charge. However, if done correctly, topping off the system charge can be done without problems.

With R-410A, there are no significant changes in the refrigerant composition during 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, may be used after leaks have occurred and then “top-off” the charge by utilizing the charging charts on the inner control panel cover as a guideline.

REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to insure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction.

WARNING

Failure to conform to these practices could lead to injury or death.

SAFETY PRACTICES:

1. Never mix R-410A with other refrigerants.

2. Use gloves and safety glasses. Polyol Ester oils can be irritating to the skin, and liquid refrigerant will freeze the skin.

3. Never use air and R-410A to leak check; the mixture may become flammable.

4. Do not inhale R-410A – the vapor attacks the nervous system, creating dizziness, loss of coordination and slurred speech. Cardiac irregularities, unconsciousness and ultimate death can result from breathing this concentration.

5. Do not burn R-410A. This decomposition produces hazardous vapors. Evacuate the area if exposed.

6. Use only cylinders rated DOT4BA/4BW 400.

7. Never fill cylinders over 80% of total capacity.

8. Store cylinders in a cool area, out of direct sunlight.

9. Never heat cylinders above 125°F.

10. Never trap liquid R-410A in manifold sets, gauge lines or cylinders. R-410A expands significantly at warmer temperatures. Once a cylinder or line is full of liquid, any further rise in temperature will cause it to burst.

Manual 2100-549G Page 30 of 59

START UP

DESCRIPTION OF STANDARD EQUIPMENT

Solid State Electronic Heat Pump Control

Provides efficient 30, 60 or 90-minute defrost cycle. A thermistor sensor and speed up terminal for service along with a 8-minute defrost override are standard on the electronic heat pump control. By default, the I-TEC are factory shipped on the 90-minute defrost cycle.

High / Low Pressure Switch

Provides refrigerant circuit high pressure and loss of charge protection. Includes lockout circuit built into heat pump control that is resettable from room thermostat.

Five Minute Compressor Time Delay

Provides short cycle protection for the compressor which extends compressor life. Built into the electronic heat pump control as standard.

Dual Sensor Condensate Overflow

Senses and provides system shut down if draining issue causes water level to rise in either drain pan.

Low Ambient Control

The low ambient control permits cooling operation down to 0°F outdoor ambient.

IMPORTANT INSTALLER NOTE

For improved start-up performance, wash the indoor coil with a dishwasher detergent.

PHASE MONITOR

All units with three phase scroll compressors are equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal.

The phase monitor in this unit is equipped with two LEDs. If the Y signal is present at the phase monitor and phases are correct the green LED will light and the compressor contactor is allowed to energize.

If phases are reversed, the red fault LED will be lit and compressor operation is inhibited.

If a fault condition occurs, reverse two of the supply leads to the unit. Do not reverse any of the unit factory wires as damage may occur.

THREE PHASE SCROLL COMPRESSOR START UP INFORMATION

Scroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction.

However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power 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 and discharge pressure rises when the compressor is energized. Reverse rotation also results in an elevated sound level over that with correct rotation, as well as, substantially reduced current draw compared to tabulated values.

Verification of proper rotation must be made at the time the equipment is put into service. If improper rotation is corrected at this time there will be no negative impact on the durability of the compressor. However, reverse operation for even one hour may have a negative impact on the bearing due to oil pump out.

All three phase scroll compressors used in the series are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction. The direction of rotation of the motor may be changed by reversing any two line connections to the unit.

I-TEC

SERVICE HINTS

Caution user to maintain clean air filters at all times. Also, not to needlessly close off supply air registers. This may reduce airflow through the system, which shortens equipment service life as well as increasing operating costs and noise levels.

Switching to heating cycle at 75°F or higher outside temperature may cause a nuisance trip of the remote reset high pressure switch. Turn thermostat off, then on to reset the high pressure switch.

The heat pump wall thermostats perform multiple functions. Be sure that all function switches are correctly set for the desired operating mode before trying to diagnose any reported service problems.

4. Check all power fuses or circuit breakers to be sure they are the correct rating.

5. Periodic cleaning of the outdoor coils to permit full and unrestricted airflow circulation is essential.

6. Annual maintenance is required to make sure that

all of the systems are functioning properly. a. Check to make sure that the drains are not

obstructed in any way.

b. Remove any debris in the condenser section of

the unit.

c. Inspect and wash outdoor coils as necessary.

7. All motors are sealed and require no oiling.

Manual 2100-549G Page 31 of 59

SEQUENCE OF OPERATION

PRESSURE SERVICE PORTS

COOLING PART LOAD – Circuit R-Y1 makes at thermostat pulling in compressor contactor, starting the compressor and outdoor motor. The G (indoor motor) circuit is automatically completed on any call for cooling operation or can be energized by manual fan switch on subbase for constant air circulation.

COOLING FULL LOAD – Circuit R-Y1 & Y2 makes at the thermostat energizing the 2nd stage solenoid in the compressor. The default position of the compressor staging solenoid is non-energized. The compressor will run at low capacity until this solenoid is energized.

HEATING STAGE 1 – A 24V solenoid coil on reversing valve controls heating cycle operation. Two thermostat options, one allowing “Auto” changeover from cycle to cycle and the other constantly energizing solenoid coil during heating season and thus eliminating pressure equalization noise except during defrost, are to be used. On “Auto” option 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 starting indoor blower motor. Heat pump heating cycle now in operation. The second option has no “Auto” changeover position, but instead energizes the reversing valve solenoid constantly whenever the system switch on subbase is placed in “Heat” position, the “B” terminal being constantly energized from R. A thermostat demand for Stage 1 heat completes R-Y1 circuit, pulling in compressor contactor starting compressor and outdoor motor. R-G also make starting indoor blower motor.

HEATING STAGE 2 – Circuit R-Y1 & Y2 makes at the thermostat energizing the 2nd stage solenoid in the compressor.

High and low pressure service ports are installed on all units so that the system operating pressures can be observed. Pressure tables can be found later in the manual covering all models. It is imperative to match the correct pressure table to the unit by model number. Upper and lower service doors must be attached to obtain proper reading.

LOWERING OUTDOOR FAN SPEED for SOUND

Supplied in the Literature Assembly is a Fan Control Resistor Assembly that can be installed to lower the fan speed for reduced sound performance. This Resistor Assembly is to be installed in series with the Outdoor Fan Control Thermistor to change the temperature curve that the fan logic control sees.

It is anticipated that you will see a 2-3% drop in system capacity and efficiency when this resistor is installed.

To install the Resistor Assembly:

1. Locate Fan Control Resistor Assembly in Literature Packet hanging on right inside door of unit.

2. Throw main power disconnect to the “OFF” position to eliminate risk of injury or death due to electrical shock.

3. Remove four (4) screws that retain the control panel cover to the unit.

4. Locate Fan Logic Control Board.

5. Locate one of the red leads of the Fan Control Thermistor where it attaches to the Fan Logic Control and remove it.

6. Install resistor in-line with the thermistor lead removed in Step #5, and then connect back onto the Fan Logic Control Board.

Manual 2100-549G Page 32 of 59

DEFROST CYCLE

120*

SW1SW

2 TIME (SEC)

OFF OFF

ON ON

OFF

30 60

180

MIS-2668 A

OFF

LOW PRESSURE BYPASS TIMER SWITCH *(FACTORY SETTING 120 SECONDS)

ACCUMULATED DEFROST TIME TIMER (FACTORY SETTING 60 MIN.)

The defrost cycle is controlled by temperature and time on the solid state heat pump control. See Figure 20.

When the outdoor temperature is in the lower 40°F temperature range or colder, the outdoor coil temperature is 32°F or below. This coil temperature is sensed by the coil temperature sensor mounted near the bottom of the outdoor coil. Once coil temperature reaches 30°F or below, the coil temperature sensor sends a signal to the control logic of the heat pump control and the defrost timer will start accumulating run time.

After 30, 60 or 90 minutes of heat pump operation at 30°F or below, the heat pump control will place the system in the defrost mode. Factory default setting is 90 minutes.

During the defrost mode, the refrigerant cycle switches back to the cooling cycle, the outdoor motor stops, electric heaters are energized, and hot gas passing through the outdoor coil melts any accumulated frost. When the temperature rises to approximately 57°F, the coil temperature sensor will send a signal to the heat pump control which will return the system to heating operations automatically.

If some abnormal or temporary condition such as a high wind causes the heat pump to have a prolonged defrost cycle, the heat pump control will restore the system to heating operation automatically after 8 minutes.

The heat pump defrost control board has an option of 30, 60 or 90-minute setting. All models are shipped from the factory on the 90-minute pin. If special circumstances require a change to another time, remove the wire from the 90-minute terminal and reconnect to the desired terminal.

The manufacturer’s recommendation is for 90-minute defrost cycles. Refer to Figure 20.

There is a cycle speed up jumper on the control. This can be used for testing purposes to reduce the time between defrost cycle operation without waiting for time to elapse.

Use a small screwdriver or other metallic object, or another ¼ inch QC, to short between the 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 the SPEEDUP terminals shorted for the speedup to be completed and the defrost cycle to start.

As soon as the defrost cycle kicks in remove the shorting instrument from the SPEEDUP terminals.

Otherwise the timing will remain accelerated and run through the 1-minute minimum defrost length sequence in a matter of seconds and will automatically terminate the defrost sequence.

There is an initiate defrost jumper (sen jump) on the control that can be used at any outdoor ambient during the heating cycle to simulate a 0° coil temperature.

This can be used to check defrost operation of the unit without waiting for the outdoor ambient to fall into the defrost region.

By placing a jumper across the SEN JMP terminals (a ¼ inch QC terminal works best) the defrost sensor mounted on the outdoor coil is shunted out & will activate the timing circuit. This permits the defrost cycle to be checked out in warmer weather conditions without the outdoor temperature having to fall into the defrost region.

In order to terminate the defrost test the SEN JMP jumper must be removed. If left in place too long, the

compressor could stop due to the high pressure control opening because of high pressure condition created by operating in the cooling mode with outdoor fan off. Pressure will rise fairly fast as there is likely no actual frost on the outdoor coil in this artificial test condition.

There is also a 5-minute compressor time delay function built into the HPC. This is to protect the compressor from short cycling conditions. The board’s LED will have a fast blink rate when in the compressor time delay. In some instances, it is helpful to the service technician to override or speed up this timing period, and shorting out the SPEEDUP terminals for a few seconds can do this.

FIGURE 20

DEFROST CYCLE

(FACTORY SETTING 90 MIN.)

Manual 2100-549G Page 33 of 59

I-TEC

COMMERCIAL ROOM

VENTILATOR SYSTEM GENERAL DESCRIPTION

The I-TEC Commercial Room Ventilator (CRV) is designed to be used with all Bard I-TEC models. The only intent of this device is to provide the required ventilation by delivering fresh air to meet I.A.Q. (Indoor Air Quality) requirements. In the installed application, this system also includes exhaust provisions which are balanced with the intake air to maintain building pressurization requirements of ASHRAE 62.1 Standard.

Ventilation is accomplished with (2) blower/motor assemblies for maximum ventilation at low sound levels. The intake and exhaust blowers are programmed independently and are balanced to maintain a slight positive pressurization in accordance to ASHRAE 62.1 Standard.

The I-TEC CRV is also provided with filters to reduce the required service needed and to further improve the I.A.Q. The exhaust air blowers are protected by disposable filters, and the intake air blowers are protected by washable filters. Both are accessible without the need for tools.

CONTROL WIRING

The I-TEC CRV comes wired from the factory set to 375 CFM of ventilation. Care must be taken when deciding how to control the operation of the ventilator. When designing the control circuit for the ventilator, the following requirements must be met.

The indoor blower must be run whenever the I-TEC CRV is run.

2. Select and configure the correct CFM ventilation level that the I-TEC CRV needs to operate and configure the system to this level following later instructions within this section. Over ventilating serves no useful purpose and significantly affects the overall efficiency of the heat pump system. System operating costs would also increase.

3. Run the I-TEC CRV only during periods when the conditioned space is occupied. Running the ventilation during unoccupied periods wastes energy, decreases the expected life of the CRV, and can result in large moisture buildup in the structure. Running the CRV when the structure is unoccupied allows moisture to build up in the structure because there is little or no cooling load. Thus, the air conditioner is not running enough to remove the excess moisture being brought in. Use a control system that in some way can control the system based upon occupancy.

Operating the I-TEC CRV during unoccupied periods can result in a build up of excess moisture in the structure.

Manual 2100-549G Page 34 of 59

RECOMMENDED CONTROL SEQUENCES

Several possible scenarios are listed below:

1. Use a programmable electronic thermostat with auxiliary terminal to control the CRV based on daily programmed occupance periods. Bard markets and recommends Bard Part #8403-060 programmable electronic thermostat.

Use Bard CompleteStat™ that incorporates temperature, humidity and occupancy control with learning capability into a single device. No programming required.

Use a DDC control system to control the CRV based upon a room occupancy schedule to control the CRV.

Tie the operation of the CRV into the light switch. The lights in a room are usually on only when occupied.

5. Use a manual timer that the occupants turn to energize the CRV for a specific number of hours.

6. Use a programmable mechanical timer to energize 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 do not utilize a thermostat with an occupancy output, or a occupancy sensor and must tie "A" terminal to "G" terminal to drive the ventilation package. If you

do have a thermostat or control that does drive occupancy output, you will need to remove the tape from the orange wire located in the low voltage terminal box, and connect it to the "G" terminal to activate this function. (See Figures 13-19.)

SETTING THE VENTILATION CFM LEVELS

The I-TEC CRV has four pre-set levels of ventilation CFM available. These are 300, 375, 450 and 525 CFM of ventilation air. The I-TEC CRV is shipped from the factory set on the 375 CFM ventilation level. To change between these four different levels of provided ventilation CFM, first refer to Figure 21 to look up the corresponding CFM needed for the intake and exhaust blowers to meet the design criteria and determine which “speed/wire color” is needed. Then, perform the following steps.

WARNING

HAZARD OF ELECTRICAL SHOCK. ELECTRICAL SHOCK CAN RESULT IN SERIOUS INJURY OR DEATH. DISCONNECT THE REMOTE ELECTRIC POWER SUPPLY OR SUPPLIES BEFORE SERVICING.

Open front swinging doors of main unit (by popping front door latches).

2. Throw main power disconnect to the “OFF position to eliminate risk of injury or death due to electrical shock.

3. Remove six (6) screws holding front CRV door in place (See Figure 22).

4. Locate “Brown Wire with White Trace” that has a black terminal on the end where it connects to the terminal strip (See Figure 21).

5. Move “Brown Wire with White Trace” to the corresponding CFM level needed in accordance with Figure 21.

7961-754-2

”

FIGURE 21

CRV MOTOR SPEED/CFM CONFIGURATION

VENT OPTION INTAKE/EXHAUST SPEEDS

WIRE COLOR SPEED

BLACK

BLUE

ORANGE

RED

TO CHANGE SPEEDS, MOVE BROWN WIRE WITH WHITE TRACE.

HI MED-HI MED-LO

NOM. CFM

525 450 375 300

7961-755-2

BROWN/WHITE

Move brown/white wire to corresponding motor speed for required ventilation CFM. Factory setting is Medium Lo (375 CFM).

MED. HI

MED. LO

MOTOR SPEEDS

7961-7554

BLACK BLUE ORANGE RED

MIS-3022 A

Manual 2100-549G Page 35 of 59

CRV SPEED CHANGE TERMINAL ACCESS

CRV INTAKE BLOWER NOTE: CRV EXHAUST BLOWER IS BEHIND INTAKE BLOWER

FIGURE 22

REMOVE (5) SCREWS FROM CRV DOOR TO ACCESS CRV COMPONENTS

MIS-3023

BLOWER SPEED CONTROL LOCATION

BLOWER SPEED CONTROL

BLOWER REMOVED FOR CLARITY

Manual 2100-549G Page 36 of 59

I-TEC

COMBINATION CRV &

ECONOMIZER VENTILATION SYSTEM DESCRIPTION

The I-TEC combination Commercial Room Ventilator (CRV) and Dry Bulb Economizer is designed to be used with all Bard I-TEC models. This ventilation package and its control provides two (2) roles:

•

It will provide the required ventilation by delivering fresh air to meet I.A.Q. (Indoor Air Quality)

requirements through CRV portion of the device.

•

It will provide up to 525 CFM of free outdoor cooling CFM when the outdoor ambient temperature

is below the outdoor thermostat setpoint.

The Ventilation Package is also provided with filters to reduce the required service needed and to further improve the I.A.Q. The exhaust air blowers are protected by disposable filters, and the intake air blowers are protected by washable filters. Both are accessible without the need for tools.

CONTROL WIRING

Refer to Low Voltage Connection (Figure 19). Reference Figure 23 for Control Sequence of

Operation.

Operating the periods can result in a build up of excess moisture in the structure.

I-TEC

CRV during unoccupied

SETTING THE VENTILATION CFM LEVELS

The I-TEC CRV has four (4) pre-set levels of ventilation CFM available. These are 300, 375, 450 and 525 CFM of ventilation air. This ventilation package is shipped from the factory set on the 375 CFM ventilation level while the Economizer portion is set on the 525 CFM ventilation level. To change between these four different levels of provided ventilation CFM, refer to Figure 24 to look up the corresponding CFM needed for the intake and exhaust blowers to meet the design criteria and determine which “speed/wire color” is needed.

Perform the following steps:

1. Open front swinging doors of main unit (by popping front door latches).

Open disconnect to shut all power OFF before doing this! Failure to do so could result in injury or death due to electrical shock.

2. Throw main power disconnect to the “OFF” position to eliminate risk of injury or death due to electrical shock.

3. Remove six (6) screws holding front CRV door in place (see Figure 22).

4. For CRV blower speed, locate “Brown Wire with White Trace” that has as black terminal on the end where it connects to the terminal strip (see Figure

24).

5. Move the “Brown Wire with White Trace” to the corresponding CFM level needed in accordance with Figure 24.

6. For Economizer Blower Speed, locate “Pink Wire” that has a black terminal on the end where it connects to the terminal strip (see Figure 24).

7. Move the “Pink” to the corresponding CFM level needed in accordance with Figure 24.

Manual 2100-549G Page 37 of 59

I-TEC

ECON. SEQUENCE OF OPERATION

If outdoor temperature is below outdoor thermostat setpoint

On call from CompleteStat for first stage cooling:

•

“YO” thermostat signal powers vent blower motors at Economizer Speed/Airflow (black – 525 CFM) through NC contacts of Relay “R1” (“Dehum Relay”).

On call from CompleteStat for first and second stage cooling:

•

“YO” thermostat signal powers vent blower motors at Economizer Speed/Airflow (black – 525 CFM) through NC contacts of Relay “R1” (“Dehum Relay”)

• “Y1” thermostat signal powers “Y1” terminal on unit low voltage terminal strip through NC contacts of relay “R2” (“High Ambient Relay”).

On call from CompleteStat for first, second and third stage cooling:

• “YO” thermostat signal powers vent blower motors at Economizer Speed/Airflow (black – 525 CFM) through NC contacts of Relay “R1” (“Dehum Relay”).

• “Y1” thermostat signal powers “Y1” terminal on unit low voltage terminal strip through NC contacts of relay “R2” (“High Ambient Relay”).

• “Y2” thermostat signal powers “Y2” terminal on unit low voltage terminal strip through NC contacts of relay “R2” (“High Ambient Relay”).

FIGURE 23 ECONOMIZER CONTROL CIRCUIT

UNIT LOW VOLTAGE

THERMOSTAT

SIGNALS

TERMINAL

STRIP

If outdoor temperature is above outdoor thermostat setpoint

On call from CompleteStat for first stage cooling:

• “YO” thermostat signal powers relay coil “R2”. “R2” relay then closes NO contact between “R” and “Y1” at low voltage terminal strip engaging stage 1 mechanical cooling. NC contacts of relay “R2” that connects thermostat “Y1” to “Y1” on low voltage terminal strip is opened to eliminate feedback.

On call from CompleteStat for first and second stage cooling:

• “Y1” thermostat signal powers relay coil “R3” through now closed relay contacts “R2” closing contacts between “R” and “Y2” at low voltage terminal strip.

• “Y2” thermostat signal will do nothing, as NC contacts of relay “R2” are now opened to eliminate any feedback to thermostat.

Dehumidification Mode

On call from CompleteStat for dehumidification:

• “D” thermostat signal powers relay coil “R1” (Dehum. Relay). “R1” relay, then opens NC contact between “YO” and outdoor thermostat.



This will then negate any ECONOMIZER SPEED SIGNAL from energizing the ventilation package.



“Y1” & “Y2” thermostat signals will pass through NC contacts of Relay “R2” (“High Ambient Relay”) as relay coil “R2” will be rendered inoperable by “R1” contacts opening. Normal cooling calls can then still apply to override Dehum. call.

R1 = DEHUM RELAY R2 = HIGH AMBIENT RELAY R3 = FULL LOAD RELAY R4 = BLOWER INTERLOCK RELAY

Manual 2100-549G Page 38 of 59

FIELD WIRE FACTORY WIRE

COM

R34 R1 R2

ECON VENT SPEED

CRV VENT SPEED

MIS-3272

HEATING MODE OPERATION

CompleteStat should never energize “YO” terminals in conjunction with “B”, so relay “R2” will never energize, and neither will Economizer Ventilation Speed.

“Y1” and “Y2” signals will pass through NC contacts of relay “R2” contacts, and all heating operations will be normal.

MOTOR SPEED/CFM CONFIGURATION

VENT OPTION INTAKE/EXHAUST SPEEDS

WIRE COLOR

BLUE

ORANGE

RED

TO CHANGE SPEEDS, MOVE BROWN WIRE WITH WHITE TRACE.

VENTILATION MODE

The call for ventilation will never be disrupted with this control circuit. Anytime “A” signal from CompleteStat is present, the “VENTILATION SPEED” of the vent package will be energized. “A” Signal from thermostat will also energize relay “R4” (“Blower Interlock Relay”) completing a circuit from “R” to “G” through the “NO” contacts to ensure blower operations on the ventilation call.

FIGURE 24

SPEED NOM. CFM

HIBLACK MED-HI MED-LO

525 450 375 300

7961-755-2

Move pink wire to corresponding motor speed for required economizer operation CFM. Factory setting is High (525 CFM).

PINK

BROWN/WHITE

Move brown/white wire to corresponding motor speed for required ventilation CFM. Factory setting is Medium Lo (375 CFM).

MED. HI

MED. LO

MOTOR SPEEDS

7961-7554

BLACK BLUE ORANGE RED

MIS-3271

Manual 2100-549G Page 39 of 59

I-TEC

ENERGY RECOVERY

VENTILATOR SYSTEM GENERAL DESCRIPTION

The I-TEC Energy Recovery Ventilator (ERV) was designed to provide energy efficient, cost effective ventilation to meet I.A.Q (Indoor Air Quality) requirements while still maintaining good indoor comfort and humidity control for a variety of applications such as schools, classrooms, lounges, conference rooms and others. It provides a constant supply of fresh air for control of airborne pollutants including CO2, smoke, radon, formaldehyde, excess moisture, virus and bacteria.

The ERV incorporates patented rotary heat exchanger technology to remove both heat and moisture. The package consists of unique rotary Energy Recovery Cassettes that can be easily removed for cleaning or maintenance. It has two 15-inch diameter heat transfer wheels for efficient heat transfer. The heat transfer wheels use a permanently bonded dry dessicant coating for total heat recovery.

The I-TEC ERV is also provided with filters to reduce the required service needed and to extend the life of the heat recovery wheels. The exhaust air blower is protected by disposable filters, and the intake air blower is protected by washable filters. Both are accessible without the need for tools.

Ventilation is accomplished with (2) blower/motor assemblies for maximum ventilation at low sound levels. The intake and exhaust blowers can be independently adjusted to maintain desired building pressurization conditions. The rotating wheels provide the heat transfer effectively during both summer and winter conditions. Provides required ventilation to meet the requirements of ASHRAE 62.1 Standard.

NOTE: During operation below 5°F outdoor temperature, freezing of moisture in the heat transfer wheel can occur. Consult the factory if this possibility exists.

The I-TEC ERV can be controlled in different ways. It can be turned ON/OFF with an occupancy control, thermostat, or CO2 control. It can also be configured for fully-modulating variable speed with a CO2 control to only bring in the minimal amount of ventilation required (helping to minimize sound levels and ventilation load on the structure).

CONTROL WIRING

The I-TEC ERV comes wired from the factory ready to operate in manual mode (ON/OFF cycling) and set to 375 CFM of ventilation. Care must be taken when deciding how to control the operation of the ventilator. When designing the control circuit for the ventilator, the following requirements must be met.

The indoor blower must be run whenever the I-TEC ERV is run.

2. Select and configure the correct CFM ventilation level that the I-TEC ERV needs to operate and configure the system to this level following later instructions within this section. Over ventilating serves no useful purpose and significantly affects the overall efficiency of the heat pump system. System operating costs would also increase.

3. Run the I-TEC ERV only during periods when the conditioned space is occupied. Running the ERV during unoccupied periods wastes energy, decreases the expected life of the ERV, and can result in large moisture buildup in the structure. The ERV removes 60-70% of the moisture in the incoming air, not 100% of it. Running the ERV when the structure is unoccupied allows moisture to build up in the structure because there is little or no cooling load. Thus, the air conditioner is not running enough to remove the excess moisture being brought in. Use a control system that in some way can control the system based upon occupancy.

Operating the periods can result in a build up of excess moisture in the structure.

I-TEC

ERV during unoccupied

Manual 2100-549G Page 40 of 59

RECOMMENDED CONTROL SEQUENCES

Several possible scenarios are listed below:

1. Use a programmable electronic thermostat with auxiliary terminal to control the ERV based on daily programmed occupance periods. Bard markets and recommends Bard Part #8403-060 programmable electronic thermostat.

Use a motion sensor in conjuntion with a mechanical thermostat to determine occupancy in the structure. Bard markets the CS2000A for this use.

Use a DDC control system to control the ERV based upon a room occupancy schedule to control the ERV.

Tie the operation of the ERV into the light switch. The lights in a room are usually on only when occupied.

5. Use a manual timer that the occupants turn to energize the ERV for a specific number of hours.

6. Use a programmable mechanical timer to energize the ERV and indoor blower during occupied periods of the day.

CHANGING VENTILATION CFM RATES IN MANUAL MODE

WARNING

HAZARD OF ELECTRICAL SHOCK. ELECTRICAL SHOCK CAN RESULT IN SERIOUS INJURY OR DEATH. DISCONNECT THE REMOTE ELECTRIC POWER SUPPLY OR SUPPLIES BEFORE SERVICING.

To adjust the airflow ventilation rate, first refer to Figure 25A to look up the “FLOW INDEX” needed for the intake and exhaust blowers for the CFM you require. Then, perform the following steps:

Open front swinging doors of main unit (by popping front door latches).

2. Throw main power disconnect to the “OFF position to eliminate risk of injury or death due to electrical shock.

3. Remove five (5) screws holding front ERV door in place (See Figure 27).

4. Remove ERV Control Panel Cover by removing four (4) screws (See Figure 27).

5. Locate two 0-10Vdc Motor Control Boards in control panel (See Figure 28).

7961-754-2

”

6. On intake Motor Control Board, observing “GREEN STATUS LIGHT”, turn manual adjust potentiometer “CCW” to increase “FLOW INDEX” or CW to reduce “FLOW INDEX” to match desired setting.

NOTE: After long pause, the green status light will blink long-blinks for the “TEN COUNT” of the “FLOW RATE INDEX”, then immediately followed by fast blinks which indicate the second digit. For example, a Flow Index of 23 would be two long blinks, followed by 3 fast blinks of the “GREEN STATUS LIGHT”.

7. On exhaust Motor Control Board, observing “GREEN STATUS LIGHT”, turn manual adjust potentiometer “CCW” to increase “FLOW INDEX” or CW to reduce “FLOW INDEX” to match desired setting.

NOTE: Same “GREEN STATUS LIGHT” blink as Step #6.

CHANGING TO FULLY MODULATING MODE

If you want to operate the ERV in fully variable mode (Fig. 25B) (only run at required speed to maintain set-point CO2 levels), you will need to configure the ERV to the following:

Open front swinging doors of main unit (by popping front door latches).

2. Throw main power disconnect to the “OFF position to eliminate risk of injury or death due to electrical shock.

3. Remove ERV Control Panel Cover by removing four (4) screws (See Figure 27).

4. Locate two 0-10Vdc Motor Control Boards in control panel (See Figure 28).

5. Pull jumper pins from “M” terminals, and move to “P” terminals (See Figure 28).

6. Connect “+” 0-10Vdc output from CO2 control to Terminal #3 (along with pink wire), and connect “-” to Terminal #4 (along with purple wire) of unit low voltage terminal strip.

7. Follow the directions supplied with the CO2 control to configure the control appropriately.

”

Manual 2100-549G Page 41 of 59

PERFORMANCE AND APPLICATION DATA

SUMMER COOLING PERFORMANCE

(INDOOR DESIGN CONDITIONS 75°DB/62°WB)

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/BD

F TLV SLV LLV TRH SRH LRH TLV SLV LLV TRH SRH LRH TLV SLV LLV TRH SRH LRH

575641208541488625931774957447887105121737550811810868730134102790954785921565703 0708541085410774977490 05121051210810881080027902790215621560

501

5608541085410 08 09513 05121 04491 33502 7987 53621 52362 52101 00261 47371 2866 29601 06012 0018 06921 01141 7245 3868 57 56412 05121 4139 25931 7987 4506 78871 52101 2677 50811 2866 3215 01341 0018 0126 7859 7245 0614

001

07 25321 05121 202 9208 7987 131 39201 52101 861 3976 2866 111 5328 0018 531 7155 7245 09 56 05121 05121 0 7987 7987 0 52101 52101 0 2866 2866 0 0018 0018 0 7245 7245 0 06 05121 05121 0 7987 7987 0 52101 52101 0 2866 2866 0 0018 0018 0 7245 7245 0 0809513027907812335028136512415236200185228147371543582021060120846085410114114348679 57564120279447112593181364367788710018787950811543595460134108460387785914346425 0725321027923629208813611713920100183912397654357441532808465571715514345711

56027902790813681360001800180543554350084608460 06027902790813681360001800180543554350084608460143414340 08 09513 0927 00342 33502 8374 49751 52362 5706 05202 47371 9004 56331 06012 0684 00261 01141 6523 45801 57 56412 0927 57141 25931 8374 3129 78871 5706 21811 50811 9004 6977 01341 0684 0549 7859 6523 1336

07 25321 0927 2605 9208 8374 0923 39201 5706 8124 3976 9004 4872 5328 0684 5733 7155 6523 1622 56 0927 0927 0 8374 8374 0 5706 5706 0 9004 9004 0 0684 0684 0 6523 6523 0 06 0927 0927 0 8374 8374 0 5706 5706 0 9004 9004 0 0684 0684 0 6523 6523 0 08095130684037623350295134737152362050457222473712762107410601204230287101141071293911 57564120684506612593195133970178871050473831508112762231901341042307011785907126147 0725321068429479208951307843920105043426397627620214532804235994715507126433

56068406840951395130050405040276227620042304230071207120 06068406840951395130050405040276227620042304230071207120 57 56412 0342 53091 25931 9751 27321 78871 5202 26851 50811 6331 96401 01341 0261 09621 7859 5801 2058 07 25321 0342 2299 9208 9751 9446 39201 5202 8628 3976 6331 7545 5328 0261 5166 7155 5801 2344

56 2524 0342 2281 4672 9751 4811 3453 5202 8151 8332 6331 2001 5382 0261 5121 9981 5801 418 06 0342 0342 0 9751 9751 0 5202 5202 0 6331 6331 0 0261 0261 0 5801 5801 0 072532102532192080920839201039201397603976532805328715507155

56252402524467204672345303453833208332538205382998109981 06000000000000000000

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MFC003ETARNOITALITNEV

WINTER HEATING PERFORMANCE

(INDOOR DESIGN CONDITIONS 70°F DB)

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F°/BD LVW RHW LVW RHW LVW RHW 56034244915202046102618231 06068488830504082304236562 55092723855706029406845893 05027967770018165608463135 5405121027952101102800182466 04085414661105121148902790797 5301071806315714118411043118929 03044912555100261221310692172601 52078126947152281267410854155911 02003420449105202204610026148231 51037624831257222240810287121641

Manual 2100-549G Page 42 of 59

ETARNOITALITNEV

MFC573

%28YCNEICIFFE

LEGEND: VLT = Ventilation Load – Total

MFC003

VLS = Ventilation Load – Sensible VLL = Ventilation Load – Latent HRT = Heat Recovery – Total HRS = Heat Recovery – Sensible HRL = Heat Recovery – Latent WVL = Winter Ventilation Load WHR = Winter Heat Recovery

Note: All performance data is based on

operating intake and exhaust blower on the same speed.

FIGURE 25A

ERV “MANUAL MODE” JUMPER PIN ON “M” TERMINAL

FLOW INDEX (Light

ERV CFM

450 100

425 89

400 83

375 76

350 59

325 50

300 40

275 32

250 25

225 12

200 9

175 4

150 1

Blink Code)

To adjust the airflow ventilation rate (NO CO2

CONTROL/NON-MODULATING) , determine the "FLOW

INDEX" needed for the intake and exhaust blowers for

the CFM you require.

1.> Locate two 0-10Vdc Motor Control Boards in control panel

2.> On intake Motor Control Board, observing "GREEN STATUS

LIGHT", turn manual adjust potentiometer (with a small phillips-head

screwdriver) "CCW" to increase "FLOW INDEX" or CW to reduce

"FLOW INDEX" to match desired setting. (NOTE: After long pause,

the green status light will blink long-blinks for the "TEN COUNT" of

the "FLOW RATE INDEX", which then is immediately followed by

fast blinks which indicate the second digit. For example, a Flow

Index of 23 would be two long blinks, followed by 3 fast blinks of

the "GREEN STATUS LIGHT".)

3.> On exhaust Motor Control Board, observing "GREEN STATUS

LIGHT", turn manual adjust potentiometer (with a small phillips-head

screwdriver) "CCW" to increase "FLOW INDEX" or CW to reduce

"FLOW INDEX" to match desired setting. (Same GREEN STATUS

LIGHT blink (refer to Step #5))

FIGURE 25B

ERV “MODULATING MODE” JUMPER PIN ON “P” TERMINAL

Vdc Signal

CFM

450

425

400

375

350

325

300

275

250

225

200

175

150

125

100

from CO2

Control

8.87

8.31

7.61

6.73

5.91

5.15

4.58

4.06

2.91

2.57

2.24

1.74

0.96

0.77

After determining the air volume

rates needed for the intended

application (Maximum &

Minimum), the table

immediately to the left will allow

for you to program your CO2

control output voltages in correlation to the CO2 levels you wish to control when Bard Part # 8403-067 CO2 Control is applied.

Manual 2100-549G Page 43 of 59

Return Air

FIGURE 26

VENTILATION AIRFLOW DIAGRAM

Supply Air

SUPPLY BLOWER

VENT INTAKE BLOWER

Indoor Air

Outdoor Air

VENT EXHAUST BLOWER

MIS-3024

Manual 2100-549G Page 44 of 59

FIGURE 27

ERV ACCESS

ERV INTAKE BLOWER

NOTE: ERV EXHAUST BLOWER IS BEHIND INTAKE BLOWER

ERV CASSETTE ASSEMBLIES

REMOVE (5) SCREWS FROM ERV DOOR TO ACCESS ERV COMPONENTS

MIS-3025

ERV CONTROL PANEL LOCATION

Manual 2100-549G Page 45 of 59

ECM Motor Control Cable

To Automation

Controller

FIGURE 28

CONTROL BOARD CONFIGURATION/SETTING

Control Signal

Signal Common



Move jumper pin to “P” position to allow variable ventilation control using 4-20MA CO2 controller

Board mode pins factory shipped on “M” pin for On/Off control



scheme using “A” signal on low voltage control board.

0-2,000 RPM

= 0-10Vdc

RPM Out

Common

Aux

Signal Common,

Aux Common &

Power

24Vac/dc

Neutral/Common are

internally connected

Class II Power Source

Earth neutral/Common

24Vac/dc

Neutral/Common

at transformer

for electrical safety.

CONFIGURING BARD PART #8403-067 CO2 CONTROL for ERV MODULATING CONTROL

BARD PART #8403-067

Carbon Dioxide and Temperature Transmitters

accurately monitorthe CO2concentration and temperature in schools, office buildings, and otherindoor environments to help achieve LEED® certification.

SPECIFICATIONS

Range: CO2: 0 to 2000 or 0 to 5000 ppm (depending on model)

Temperature: 32 to 122°F (0 to 50°C).

Accuracy: ±40 ppm + 3% of reading. Temperature Dependence: ±8 ppm / °C at 1100 ppm. Non-Linearity: 16 ppm. Pressure Dependence: 0.13% of reading per mm of Hg. Response Time: 2 minutes for 99% step change. Ambient Operating Temperature: 32 to 122°F (0 to 50°C). Ambient Operating Humidity: 10 to 95% RH (non-

condensing).

Power Requirements: 16 to 35 VDC / 19 to 28 VAC. Power Consumption: Average: 2 watts; Peak: 3.75 watts. Sensor: Single beam, dual-wave length NDIR. Output:

Current: 4 to 20 mA (max 500 Ω); Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω); Relay: SPST NO 2A @ 30 VDC; RTD or thermistor per r-t curves (depending on model)

Weight: 5.6 oz (158.8 g)



Manual adjust screw. Use when operating in manual mode (“M” jumper

installed) along with the “GREEN SIGNAL LIGHT” to adjust to the

required CFM of ventilation. CW rotation reduces the “FLOW INDEX”,

CCW rotation increases the “FLOW INDEX”.

WARNING

Make sure all connections are in accordance with the job wiring diagram and in accordance with national and local electrical codes. Use copper conductors only.

CAUTION

NOTICE

Disconnect power supply before installation to prevent electrical shock and equipment damage.

Use electrostatic discharge precautions (e.g., use of wrist straps) during installation and wiring to prevent equipment damage.

Avoid locations where severe shock or vibration, excessive moisture or corrosive fumes are present.

Do not exceed ratings of this device, permanent damage not

covered by warranty may result.

Upon powering the transmitter, the firmware version will flash on the display. A warm up period of 30 minutes is required for the

transmitter to adjust to the current CO

Self calibration feature of the transmitter requires exposure to normal outdoor equivalent carbon dioxide level once every thirty days.

“Red” status light (on when unit has power)

“Green” signal light continuously indicates the flow index the blower is producing. After a pause, the lamp will flash out long digits which will indicate the “TENS” count, which is immediately followed by short flashes between 1 and 99. For example, a flow index of 23 would yield two long flashes and three short flashes.

2 concentration.

Manual 2100-549G Page 46 of 59

CONFIGURING BARD PART #8403-067 CO2 CONTROL for ERV MODULATING CONTROL (Continued)

MOUNTING

1. Push tab on bottom of cover and lift cover from back plate.

2. Select the mounting location, away from diffusers, lights or any external influences.

3. Mount transmitter on a vertical surface to a standard electrical box using the two #6 M2C type screws provided.

4. Pull wires through sub base hole and make necessary connections.

5. Reattach cover to base plate.

WIRING

Use maximum 18 AWG wire for wiring to terminals. Refer to Figures 13-19 for wiring information.

SELECTION OF VOLTAGE OUTPUTS

Prior to wiring, verify the voltage selector jumpers on jumpers PJ1 and PJ2 are set to voltage (See Figure below).

CURRENT/VOLTAGE OUTPUT

SELECTION JUMPER (PJ1 & PJ2)

VOLTAGE

OUTPUT

Next, move jumper PJ5 to the 0-10V range (See Figure below).

OUTPUT RANGE SELECTION JUMPER PJ5

0 to 10 V

0 to 20 mA

EDITING MENU PARAMETERS

Before any adjustment can be made to the transmitter, the Menu Lockout Jumper (PJ4) must be set to the “On” position (See Figure below).

MENU LOCKOUT JUMPER

ENABLED

DISABLED

MENU MENU

PJ4

OFFON

Finish installing/wiring the control. Then, refer to Figure 20 and the building ventilation specifications to decide what the maximum ventilation rate desired is and what the minimum/maximum voltage signal is required for those levels.

Next, enter the control programming stage listed below once the system is powered-up to configure the control.

ACCESSING MENU PARAMETERS

Step 1: To enter the menu structure, press and

simultaneously for 5 seconds (display

will show RON parameter).

Step 2: Press or to cycle between

menu items.

Step 3: Press to edit the value for the

displayed menu item (SET will appear on display).

Step 4: Press or to adjust the value of

the menu item.

Step 5: Press to save the changes (SET will

disappear).

Step 6: Repeat Steps 2 through 5 for each of the

parameters.

Step 7: To exit the menu at any time, press and hold

seconds or wait 10 seconds without pushing any buttons.



and simultaneously for 5

PJ4

OFF

Manual 2100-549G Page 47 of 59

MENU DESCRIPTIONS

RON Relay on set point

Sets the CO2 concentration which the optional relay is energized. Low limit: 0 PPM Factory setting: 1000 PPM High limit: 2000/5000 PPM (depending on model)

ROF Relay off set point

Sets the CO relay is de-energized. Setting value lower than RON provides direct action for detecting high concentrations of CO2. Setting value higher than RON provides indirect action for detecting low concentrations of CO the LCD display will be lit to indicate when the relay is energized. Low limit: 0 PPM Factory setting: 950 PPM High limit: 2000/5000 PPM (depending on model)

DSP Display configuration

Determines the LCD display configuration during normal operation. The LCD display can indicate the CO temperature, the CO2 concentration only or the temperature only. The factory default is to display both the temperature and the CO concentration. CT CO2 concentration and temperature CCO2 concentration only T Temperature only

UNI Units selection

Temperature and barometric pressure measurements can be displayed in US engineering units or SI engineering units. The factory default is to display US engineering units.

US units F for temperature and in Hg for

SI units C for temperature and hPa for

COL CO2 low output range

Sets the CO2 concentration for the lowest output (4 mA or 0 VDC). Low limit: 0 PPM Factory setting: 0 PPM High limit: 2000/5000 PPM (depending on model)

concentration which the optional

concentration and the

barometeric pressure

barometric pressure

. or on

COH CO

high output range

Sets the CO2 concentration for the highest output (20 mA, 5 VDC or 10 VDC). When COH is set above COL, the transmitter is direct acting and the output will increase with an increase in CO

level. When COH is below

COL, the transmitter is reverse acting and the output will increase with a decrease in CO level. Low limit: 0 PPM Factory setting: 2000/5000 PPM (depending on model) High limit: 2000/5000 PPM (depending on model)

TOL Temperature low output range

Sets the temperature for the lowest output (4 mA or 0 VDC). Low limit: 32.0°F / 0.0°C Factory setting: 32.0°F / 0.0°C High limit: 122.0°F / 50.0°C

TOH Temperature high output range

Sets the temperature for the highest output (20 mA, 5 VDC or 10 VDC). When TOH is set above TOL, the transmitter is direct acting and the output will increase with an increase in temperature. When TOH is below TOL, the transmitter is reverse acting and the output will increase with a decrease intemperature. Low limit: 32.0°F / 0.0°C Factory setting: 122.0°F / 50.0°C High limit: 122.0°F / 50.0°C

BAR Barometric pressure

Sets the typical barometric pressure for the location where the transmitter is mounted. The factory setting is for standard pressure at sea level. Adjusting the barometric pressure gives a more accurate measurement, especially at higher elevations. Low limit: 20.0 in Hg / 600 hPa Factory setting: 29.9 in Hg / 1013 hPa High limit: 32.0 in Hg / 1100 hPa

Manual 2100-549G Page 48 of 59

ENERGY RECOVERY VENTILATOR MAINTENANCE

GENERAL INFORMATION

The ability to clean exposed surfaces within air moving systems is an important design consideration for the maintenance of system performance and air quality. The need for periodic cleaning will be a function of operating schedule, climate, and contaminants in the indoor air being exhausted and in the outdoor air being supplied to the building. All components exposed to the airstream, including energy recovery wheels, may require cleaning in most applications.

Rotary counterflow heat exchanges (heat wheels) with laminar airflow are “self-cleaning” with respect to dry particles. Smaller particles pass through; larger particles land on the surface and are blown clear as the flow direction is reversed. For this reason, the primary need for cleaning is to remove films of oil-based aerosols that have condensed on energy transfer surfaces. Buildup of material over time may eventually reduce airflow. Most importantly, in the case of desiccant coated (enthalpy) wheels, such films can close off micron sized pores at the surface of the desiccant material, reducing the efficiency with which the desiccant can absorb and desorb moisture.

FREQUENCY

In a reasonably clean indoor environment such as a school, office building, or home, experience shows that reductions of airflow or loss of sensible (temperature) effectiveness may not occur for ten or more years. However, experience also shows that measurable changes in latent energy (water vapor) transfer can occur in shorter periods of time in commercial, institutional and residential applications experiencing moderate occupant smoking or with cooking facilities. In applications experiencing unusually high levels of occupant smoking, such as smoking lounges, nightclubs, bars and restaurants, washing of energy transfer surfaces, as frequently as every six months, may be necessary to maintain latent transfer efficiency. Similar washing cycles may also be appropriate for industrial applications involving the ventilation of high levels of smoke or oil-based aerosols such as those found in welding or machining operations, for example. In these applications, latent efficiency losses of as much as 40% or more may develop over a period of one to three years.

CLEANABILITY AND PERFORMANCE

In order to maintain energy recovery ventilation systems, energy transfer surfaces must be accessible for washing to remove oils, grease, tars and dirt that can impede performance or generate odors. Washing of the desiccant surfaces is required to remove contaminate buildups that can reduce adsorption of water molecules. The continued ability of an enthalpy wheel to transfer latent energy depends upon the permanence of the bond between the desiccant and the energy transfer surfaces.

Bard wheels feature silica gel desiccant permanently bonded to the heat exchange surface without adhesives; the desiccant will not be lost in the washing process. Proper cleaning of the Bard energy recovery wheel will restore latent effectiveness to near original performance.

MAINTENANCE PROCEDURES

NOTE: Local conditions can vary and affect the required time

between routine maintenance procedures, therefore all sites (or specific units at a site) may not have the same schedule to maintain acceptable performance. The following timetables are recommended and can be altered based on local experience.

QUARTERLY MAINTENANCE

1. Inspect mist eliminator/prefilter and clean if necessary. This filter is located in the fresh air intake hood on the front of the unit. This is an aluminum mesh filter and can be cleaned with water and any detergent not harmful to aluminum.

2. Inspect wall mount unit filter and clean or replace as necessary. This filter is located either in the unit, in a return air filter grille assembly, or both. If in the unit it can be accessed by removing the lower service door on the front of the unit. If in a return air filter grille, by hinging the grille open to gain access.

3. Inspect energy recovery ventilator for proper wheel rotation and dirt buildup. This can be done in conjunction with Item 2 above. Energize the energy recovery ventilator after inspecting the filter and observe for proper rotation and/or dirt buildup.

4. Recommended energy recovery wheel cleaning procedures follow Steps 5 through 8.

5. Disconnect all power to unit. Remove the lower service door of the wall mount unit to gain access to the energy recovery ventilator .

6. Remove the front access panel on the ventilator . Unplug amp connectors to cassette motors. Slide energy recovery cassette out of ventilator.

7. Use a shop vacuum with brush attachment to clean both sides of the energy recovery wheels.

8. Reverse shop vacuum to use as a blower and blow out any residual dry debris from the wheel.

NOTE: Discoloration and staining of the wheel

does not affect its performance. Only excessive buildup of foreign material needs to be removed.

9. If any belt chirping or squealing noise is present, apply a small amount of LPS-1 or equivalent dry film lubricant to the belt.

Manual 2100-549G Page 49 of 59

ANNUAL MAINTENANCE

1. Inspect and conduct the same procedures as outlined under Quarterly Maintenance.

2. T o maintain peak latent (moisture) removal capacity, it is recommended that the ener gy recovery wheels be sprayed with a diluted nonacid based evaporator coil cleaner or alkaline detergent solution such as 409.

NOTE: Do not use acid based 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 damage may result.

3. Rinse wheel thoroughly after application of the cleaning solution, and allow to drain before reinstalling.

4. No re-lubrication is required to heat wheel bearings of the drive motor, or to the intake and exhaust blower motors.

5. If any belt chirping or squealing noise is present, apply a small amount of LPS-1 or equivalent dry film lubricant to the belt.

FIGURE 29

Manual 2100-549G Page 50 of 59

TROUBLESHOOTING

SOLID STATE HEAT PUMP CONTROL TROUBLESHOOTING PROCEDURE

1. NOTE: A thorough understanding of the defrost

cycle sequence is essential. Review that section earlier in this manual prior to troubleshooting the control. Turn on AC power supply to unit.

2. Turn thermostat blower switch to “fan on” – the indoor blower should start. (If it doesn’t, troubleshoot indoor unit and correct problem.)

3. Turn thermostat blower to “auto” position. Indoor blower should stop.

4. Set system switch to “heat” or “cool”. Adjust thermostat to call for heat or cool. The indoor blower, compressor and outdoor fan should start.

TROUBLESHOOTING

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NOTE: If there was no power to 24 volt transformer,

the compressor and outdoor fan motor will not start for 5 minutes. This is because of the compressor short cycle protection.

CODES FUNCTION

Slow Blink Normal Operation Fast Blink Compressor Time Delay 1 Blink Low Pressure Switch Failure 2 Blink High Pressure Switch Failure

or Condensate Overflow

Switch Activated 3 Blink Defrost Mode Active 4 Blink High Pressure Soft Lockout

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Manual 2100-549G Page 51 of 59

CHECKING TEMPERATURE SENSOR

1. Disconnect temperature sensor from board and from right-hand outdoor coil.

2. Use an ohmmeter and measure the resistance of the sensor. Also use ohmmeter to check for short or open.

3. Check resistance reading to chart of resistance use sensor ambient temperature. (Tolerance of part is ± 10%.)

TEMPERATURE (F) VS RESISTANCE (R) OF TEMPERATURE SENSOR

FR FR FR FR FR

0.52-

0.42-

0.32-

0.22-

0.12-

0.02-

0.91-

0.81-

0.71-

0.61-

0.51-

0.41-

0.31-

0.21-

0.11-

0.01-

0.9-

0.8-

0.7-

0.6-

0.5-

0.4-

0.3-

0.2-

0.1-

0.0

0.1

0.2

0.3

0.4

178691 990091 585381 813771 982171 784561 409951 925451 553941 473441 675931 659431 605031 912621 980221 801811 272411 575011 010701 475301 062001 46079 18939 80019 93188 17358 99628 12108 23677 03257

0.5

0.6

0.7

0.8

0.9

0.01

0.11

0.21

0.31

0.41

0.51

0.61

0.71

0.81

0.91

0.02

0.12

0.22

0.32

0.42

0.52

0.62

0.72

0.82

0.92

0.03

0.13

0.23

0.33

0.43

01927 07607 70586 81466 99346 94426 56506 54785 58965 48255 04635

15025 41505 82094 09541 00264 55844 45534 59224 77014 89893 75783 25673 38563 84553 54543 47533 43623 32713 04803

TABLE 6

0.53

0.63

0.73

0.83

0.93

0.04

0.14

0.24

0.34

0.44

0.54

0.64

0.74

0.84

0.94

0.05

0.15

0.25

0.35

0.45

0.55

0.65

0.75

0.85

0.95

0.06

0.16

0.26

0.36

0.46

4. If sensor resistance reads very low, then sensor is shorted and will not allow proper operation of the heat pump control.

5. If sensor is out of tolerance, shorted, open, or reads very low ohms then it should be replaced.

68992 75192 55382 77572 32862 28062 38352 69642 03042 48332 85722 05122

16512

98902 53402 69891 47391 76881 57381 98971 43471 48961 74561 22161 01751 01351

12941

44541 77141 02831

0.56

0.66

0.76

0.86

0.96

0.07

0.17

0.27

0.37

0.47

0.57

0.67

0.77

0.87

0.97

0.08

0.18

0.28

0.38

0.48

0.58

0.68

0.78

0.88

0.98

0.09

0.19

0.29

0.39

0.49

47431 73131 01821 29421 38121 38811

19511

70311

13011

26701

10501 74201 00001 0679 6258 9929 7709 2688 3568 9448 0528 7508 9687 6867 7057 4337 5617 0007 0486 3866

0.59

0.69

0.79

0.89

0.99

0.001

0.101

0.201

0.301

0.401

0.501

0.601

0.701

0.801

0.901

0.011

0.111

0.211

0.311

0.411

0.511

0.611

0.711

0.811

0.911

0.021

0.121

0.221

0.321

0.421

1356 3836 9326 8906

1695 7282 7964 0755 6445 6235 8025 4905 2894 3784 7674 3667 2654 4644 7634 4727 2814 3904 6004

1293 8383 7573 8763

1063 6253 2543

Manual 2100-549G Page 52 of 59

TROUBLESHOOTING ECM

WARNING

EXPOSED MOVING PARTS. DISCONNECT ALL ELECTRICAL POWER BEFORE SERVICING.

FAILURE TO DO SO CAN RESULT IN SEVERE INJURY OR AMPUTATION.

HAZARD OF ELECTRICAL SHOCK. ELECTRICAL SHOCK CAN RESULT IN SERIOUS INJURY OR DEATH. DISCONNECT THE REMOTE ELECTRIC POWER SUPPLY OR SUPPLIES BEFORE SERVICING.

WARNING

7961-755-1

™

142R OUTDOOR FAN MOTOR

Do not operate motor without fan blade attached. Such operations will cause the motor to oscillate up and down.

You must obtain the correct replacement motor from the manufacturer that is a direct replacement for the failed motor.

USING THE WRONG MOTOR VOIDS ALL WARRANTIES AND MA Y PRODUCE UNEXPECTED RESUL TS.

1. In normal operation, this motor may rock back and forth on start up. Do not replace if this is the only symptom identified.

2. If the system is operating properly, but the motor appears to run slower than it should, the motor is good. High efficiency systems with optimized fan blades are engineered to run slow to decrease noise. The Bard I-TEC Series models also adjust fan speed based upon varied outdoor ambient conditions to optimize sound and unit efficiency.

3. If the system is noisy, freezing up, running a high head pressure, tripping the high pressure switch or compressor overload, check the following:

a. Ensure cleanliness of condenser coil(s) and fan

blade/shroud.

b. Confirm the fan blade is not bent or deformed,

isn't rubbing on the shroud, and that it is tight on the motor shaft. Also ensure the motor is secure in its mounting system, and the mounting system is secure to the unit.

c. The Bard I-TEC is equipped with a low

ambient control pressure switch. This pressure switch completes the 24VAC Common feed to the outdoor fan motor control in cooling mode. If this switch is defective, or if the outdoor air temperature is too cold to raise the head pressure to the 325# switch closing set-point, or the system charge is too low, this could be the cause of the issue. (In heat pump {heating} mode, the low ambient fan cycling control 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 section for voltage checks to determine if the motor is getting the proper input signals.

If the motor IS NOT receiving any communication, troubleshoot the communication issue using the diagnostic table for the Fan Logic Control.

a. This motor uses a 7 wire harness to control the

motor.

Manual 2100-549G Page 53 of 59

TROUBLESHOOTING ECM

™

142R OUTDOOR FAN MOTOR

• Line power is connected as follows: “Red Wire” connects to “L1” “Black Wire” connects to “L2” “Green/Yellow Wire” connects to “Ground”

• Control power is connected as follows: “Blue Wire” connects to Fan Relay of the Defrost Logic Control, and subsequently connects to 24VAC Common through the Fan Logic Control Board. “Yellow Wire” connects to “Y” on the Fan Logic Control Board. “White Wire” connects to “W” on the Fan Logic Control Board. “Orange Wire” connects to “O” on the Fan Logic Control Board.

TROUBLESHOOTING ECM™ 142R OUTDOOR FAN MOTOR

rotoMotrewoPeniLkcehC

nommocCAV42rofkcehC tsniaga(rotomotlangis )langiS"R"remrofsnarT

** desolcsilortnoCgnilcyCnaFtneibmAwoLlitnuedomgniloocnidezigrenetonsI

** lortnoCcigoLnaFehtnodezigrenesi"B"nehwyllacitamotuadetelpmocsitiucriC

draoB

.noitarepofoledomdnaerutarepmet

NOTE: A combination of the "Yellow", "White"

and "Orange" wires being energized (with 24V "R" signal) determines five (5) different speeds the fan motor will operate at. The Fan Logic Control Board uses an outdoor thermistor sensor to determine the speed the fan should operate. It also utilizes the "B" reversing valve input for heat pump mode to determine speed should operate.

TABLE 7

rewoPeniLrofseriWkcalBdnadeRneewtebkcehC

rewoPeniL2Ldna1LoteriWneerGgnikcehcybdnuorGyfireV

draoBlortnoCcigoLnaFfolanimret"RB"kcehC

"lortnoCcigoLtsorfeD"fo"lanimreTyaleRnaF"nodaeLnaF"eulB"kcehC

.erusserptnaregirferGISP523yb

roodtuonopudesabselbatgniwollofehteeS.rotomot)lortnoCcigoLnaFno"eulB"ot(stuptuo"toh"CAV42kcehC

TABLE 8

COOLING MODE

rosneSpmeT.D.O neewteBslangiSCAV42

F°55woleBeulBotegnarO

F°96-°65neewteBeulBotetihW F°58-°07neewteBeulBotwolleY

F°211-°68neewteBeulBotetihWdnaegnarO

F°211evobAeulBotwolleYdnaetihW

If the output signals are not matching the specified temperature range, then go to Table #6 and verify the thermistor output curve. If the motor with Motor Replacement. (When checking the resistance/temperature curve, don’t forget about the optional 2.2k ohm fan control resistor assembly.)

REPLACING THE MOTOR

This motor is replaced in one piece. The control cannot be replaced separately from the motor. Even if the control is remotely located, the replacement part will be a new control with harness and new motor.

You must have the correct replacement motor from the manufacturer that is a direct replacement for the failed motor.

is receiving proper communications and proper high voltage power, and is still not running, proceed

USING THE WRONG MOTOR V OIDS ALL PRODUCT WARRANTIES AND MA Y PRODUCE UNEXPECTED RESULTS.

Always mount the replacement motor and control according to the manufacturers specifications using all required hardware to reduce vibration. Make sure all wires are free of the fan blade and not pinched in mountings or cabinet through points.

F°65evobAeulBotegnarO

F°31woleBeulBotetihWdnaegnarO

TABLE 9

HEAT PUMP MODE

rosneSpmeT.D.O neewteBslangiSCAV42

F°03-°55neewteBeulBotetihW F°41-°92neewteBeulBotwolleY

Manual 2100-549G Page 54 of 59

TROUBLESHOOTING INDOOR ECM™ BLOWER MOTORS

CAUTION:

Disconnect power from unit before removing or replacing connectors, or servicing motor. To avoid electric shock from the motor’s capacitors, disconnect power and wait at least 5 minutes before opening motor.

Symptom Cause/Procedure

Motor rocks slightly • This is normal start-up for ECM when starting

Motor won’t start • Check blower turns by hand

• No movement

• Motor rocks, • Check for loose or compliant motor mount but won’t start

Motor oscillates up • It is normal for motor to oscillate with no load & down while being on shaft

tested off of blower

Motor starts, but runs erratically

• Varies up and down • Check line voltage for variation or “sag”

or intermittent • Check low voltage connections

• “Hunts” or “puffs” at • Does removing panel or filter reduce

high CFM (speed) “puffing”?

• Stays at low CFM • Check low voltage (Thermostat) wires and

despite system call connections for cool or heat CFM • Verify fan is not in delay mode; wait until

• Stays at high CFM • “R” missing/not connected at motor

• Blower won’t shut off •

• Check power at motor

• Check low voltage (24 Vac R to C) at motor

• Check low voltage connections (G, Y, W, R, C) at motor

• Check for unseated pins in connectors on motor harness

• Test with a temporary jumper between R - G

• Check motor for tight shaft

• Perform motor/control replacement check

• Perform Moisture Check

• Make sure blower wheel is tight on shaft

• Perform motor/control replacement check

(G, Y, W, R, C) at motor, unseated pins in motor harness connectors

• Check “Bk” for erratic CFM command (in variable-speed applications)

• Check out system controls, Thermostat

• Perform Moisture Check

- Reduce restriction

- Reduce max airflow

delay complete

• “R” missing/not connected at motor

• Perform motor/control replacement check

• Is fan in delay mode? - wait until delay time complete

• Perform motor/control replacement check

Current leakage from controls into G, Y or W? Check for Triac switched thermostat or solid state relay

Symptom Cause/Procedure

• Noisy blower or cabinet • Check for loose blower housing, panels, etc.

• “Hunts” or “puffs” at • Does removing panel or filter reduce high CFM (speed)

Evidence of Moisture

• Motor failure or • Replace motor and malfunction has occurred and moisture is present

• Evidence of moisture • Perform Moisture Check

present inside air mover

• High static creating high blower speed?

- Check for air whistling through seams in ducts, cabinets or panels

- Check for cabinet/duct deformation

“puffing”?

- Reduce restriction

- Reduce max. airflow

Perform Moisture Check

Do Don’t

• Check out motor, controls, • Automatically assume the motor is bad.

wiring and connections thoroughly before replacing motor

• Orient connectors down so • Locate connectors above 7 and 4 o’clock

water can’t get in positions

- Install “drip loops”

• Use authorized motor and • Replace one motor or control model # with

model #’s for replacement another (unless an authorized replacement)

• Keep static pressure to a • Use high pressure drop filters some have

minimum: H20 drop!

- Recommend high • Use restricted returns

efficiency, low static filters

- Recommend keeping filters

clean.

- Design ductwork for min.

static, max. comfort

- Look for and recommend

ductwork improvement, where necessary

• Size the equipment wisely • Oversize system, then compensate with low

airflow

• Check orientation before • Plug in power connector backwards

inserting motor connectors • Force plugs

½"

Moisture Check

• Connectors are oriented “down” (or as recommended by equipment

manufacturer)

• Arrange harness with “drip loop” under motor

• Is condensate drain plugged?

• Check for low airflow (too much latent capacity)

• Check for undercharged condition

• Check and plug leaks in return ducts, cabinet

Comfort Check

• Check proper airflow settings

• Low static pressure for lowest noise

• Set low continuous-fan CFM

• Use humidistat and 2-speed cooling units

• Use zoning controls designed for ECM that regulate CFM

• Thermostat in bad location?

Excessive noise • Determine 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? Check filter

- Use low-pressure drop filter

- Check/correct duct restrictions

Manual 2100-549G Page 55 of 59

TROUBLESHOOTING INDOOR ECM™ BLOWER MOTORS

(Cont’d.)

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 t 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 30.

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 30.

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 31. (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.

he motor control bracket to the

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 32.

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.

Manual 2100-549G Page 56 of 59

Only remove

Hex Head Bolts

ECM 2.0

Note: Use the shorter

bolts and alignment pin supplied when replacing an

ECM 2.0

control.

Figure 3

Control Disassembly

Push until Latch Seats Over Ramp

ECM

EON

2.3/2.5

5.0

Hex-head Screws

Figure 30

From Motor

Circuit

Board

Motor

Motor Connector (3-pin)

Control Connector (16-pin)

Power Connector (5-pin)

Motor Connector (3-pin)

Back of Control

Figure 31

Figure 4

Winding Test

Motor OK when

R > 100k ohm

Figure 32

Figure 5

Drip Loop

Connector Orientation

Between 4 and 8 o'clock

Drip Loop

TROUBLESHOOTING ECM™ BLOWER MOTORS

(Cont’d.)

foEDOM

FFO

NOITAREPO

tatsomrehT

CAV42

—"G"

slangiStupnI

1#niP 2#niP 3#niP 4#niP 5#niP 6#niP 7#niP 8#niP 9#niP

01#niP

11#niP 21#niP 31#niP 41#niP 51#niP 61#niP

desUtoN desUtoN

desUtoN

suounitnoC

rewolB

noitalitneV(

)edoM

XXX X X X X X X

daoLtraP

gnilooC

,"G"

"2Y","1Y"

XXXXX X

daoLlluF

gnilooC

,"G"

"2Y","1Y"

dezigrenEsyawlA,langiS)nommoC("C"CAV42

dezigrenEsyawlA,langiS"R"toHCAV42

FIGURE 33

CONTROL CONNECTOR MOTOR HALF

12345678

1615141312119

.muheD

edoM

)deppiuqenehw(

"D"

daoLtraP

pmuPtaeH

,"B","G"

"1Y"

XX X

X X X

daoLlluF

pmuPtaeH

,"B","G"

"2Y",1Y"

pmuPtaeH

htiwdaoLlluF

foknaBts1

taeHcirtcelE

,"1Y","G"

"1W","B","2Y"

pmuPtaeH

htiwdaoLlluF

foknaBdn2&ts1

taeHcirtcelE

,"2Y","1Y","G"

"3W","2W","B"

ycnegremE

edoMtaeH

,"G"

"3W","2W"

*ROTCENNOCREWOP

REDAEHBWP0-549053-1PMA

NIPnoitpircseD 1 2

tupnIeniLCAV021 ylnO

rof2niPot1niPrepmuJ

3dnuorGsissahC

4eniLCA

5eniLCA

POWER CONNECTOR

MOTOR HALF

3512 4

FAN BLADE SETTING DIMENSIONS

The position of the fan blade should be flush with the leaving face of the orifice plate. Check to make sure the blades do not extend beyond the rear casing of the unit. Spin the blade by hand to make sure it does not hit the ring.

Suggested mating connector Housing — AMP 350809-1 Contact — AMP 350537-1

** WARNING — Applying 240VAC line input with

PIN 1 to PIN 2 jumper in place will permanently damage unit!

MIS-2839

REFRIGERANT CHARGE

This unit was charged at the factory with the quantity of refrigerant listed on the serial plate. AHRI capacity and efficiency ratings were determined by testing with this refrigerant charge quantity. The following pressure tables show nominal pressures and temperatures for the units. Since many installation specific situations can affect the pressure readings, this information should only be used by certified technicians as a guide for evaluating proper system performance. They shall not be used to adjust charge. If charge is in doubt, reclaim, evacuate and recharge the unit to the serial plate charge.

Manual 2100-549G Page 57 of 59

TABLE 10A

FULL LOAD COOLING PRESSURE/TEMPERATURE

NRUTER

RIA

LEDOM

1H03I

1H63I

1H24I

1H84I

1H06I

.PMET

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

55 06 56 07 57 08 58 09 59 001 501 011 511 021 521

ERUSSERP

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

711

811

021

121

321

421

621

821

921

202

422

642

762

982

013

233

453

031

131

331

431

631

931

041

102

522

842

172

492

513

541

641

841

941

151

012

332

652

872

621

721

921

902

132

931

041

802

132

451

551

712

042

221

321

812

832

431

631

712

932

931

041

622

742

521

621

302

522

631

831

802

132

841

941

512

832

321

421

812

142

431

531

422

842

641

741

132

552

031

252

472

241

341

452

772

751

851

262

582

521

721

852

972

831

931

062

282

241

341

962

092

721

821

842

172

931

041

452

672

151

351

162

482

421

521

562

982

731

831

172

592

841

051

972

303

251

103

323

131

231

592

713

441

641

003

723

951

061

703

033

821

031

992

913

141

241

403

623

441

541

113

233

921

392

613

141

341

992

123

451

651

703

133

621

721

213

633

931

041

913

143

151

351

723

253

141

543

263

451

651

643

963

431

531

833

063

741

841

853

073

261

361

253

573

131

331

933

063

441

641

553

963

741

841

353

573

031

131

933

163

441

541

153

763

851

951

453

773

821

921

063

383

141

241

373

983

451

651

673

004

031

573

993

241

441

683

114

751

951

193

614

631

731

183

504

941

051

293

714

461

561

793

224

431

531

083

404

741

841

193

614

941

051

693

124

231

431

483

114

741

841

093

714

161

261

004

824

921

131

704

434

341

541

314

144

751

951

424

354

F°LIOCROODTUOGNIRETNEERUTAREPMETRIA

231

331

531

631

324

844

274

541

741

634 061

244 831

924 251

144

761 744

631 824

941 044

151

644 531

734 051

444 461

654 231

264 641

964 061

184

841

164

684

261

461

764

294

931

141

254

674

351

451

664

094

861

071

174

694

731

831

254

674

051

151

564

094

251

351

174

694

631

831

464

194

151

351

174

894

661

761

484

215

331

431

984

615

741

841

794

425

161

361

015

835

731

694

025

051

151

015

535

561

761

715

245

241

341

005

425

551

751

515

935

171

271

125

045

931

041

005

425

251

351

415

935

451

551

125

645

931

041

715

445

451

651

625

355

961

171

935

765

531

631

445

175

051

151

255

085

461

661

765

595

NRUTER

RIA

LEDOM

1H03I

1H63I

1H24I

1H84I

1H06I

.PMET ERUSSERP

BD°07

Manual 2100-549G Page 58 of 59

TABLE 10B

FULL LOAD HEATING PRESSURE/TEMPERATURE

F°LIOCROODTUOGNIRETNEERUTAREPMETRIA

0 5 01 51 02 52 03 53 04 54 05 55 06 56 07

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

ediSwoL

ediShgiH

701

742

752

762

772

782

692

603

613

713

913

442

252

952

762

572

382

092

892

552

362

172

872

682

492

862

672

582

392

092

492

792

003

103

903

303

603

103

903

813

623

013

313

503

113

413

913

433

243

533

753

611

543

173

501

211

023

823

201

901

523

133

601

411

943

653

201

011

663

573

521

431

893 021

733 611

733 221

363 811

483

341

424

154

721

531

543

453

321

031

343

943

031

831

073

773

721

531

393

204

TABLE 11A

PART LOAD COOLING PRESSURE/TEMPERATURE

NRUTER

RIA

LEDOM

1H03I

1H63I

1H24I

1H84I

1H06I

.PMET ERUSSERP

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

BD57

BW26

BD08

BW76

BD58

BW27

55 06 56 07 57 08 58 09 59 001 501 011 511 021 521

ediSwoL

721

821

921

031

131

231

331

431

ediShgiH

481

602

722

942

072

292

313

433

141

241

341

441

ediShgiH

781

902

132

252

472

392

451

551

651

ediShgiH

491

612

732

952

131

331

431

ediShgiH

881

902

541

ediShgiH

641

191

212

851

951

891

912

621

821

291

212

041

141

591

612

441

541

202

322

921

031

381

502

041

141

781

902

451

551

981

212

721

691

812

731

831

002

222

251

351

302

622

631

032

052

841

941

332

452

161

261

042

062

031

231

332

352

341

541

632

752

741

841

342

462

131

231

622

842

241

441

032

252

751

851

432

752

821

042

162

931

041

442

662

351

451

942

172

751

082

203

731

931

172

292

051

251

572

592

361

461

182

203

431

631

472

492

641

841

872

992

051

151

482

403

331

962

192

541

641

472

592

061

161

082

303

921

031

382

503

241

882

013

551

651

492

713

541

223

833

751

851

323

443

041

241

313

333

351

451

323

833

661

761

323

343

831

931

513

533

051

151

623

043

251

451

523

543

431

531

313

433

841

941

423

933

261

461

523

843

031

131

623

843

341

441

933

353

751

851

043

363

531

653

083

641

741

163

583

951

161

663

093

341

441

453

873

551

651

953

483

861

961

463

983

141

241

653

973

351

451

163

483

551

651

663

093

631

731

653

183

151

251

163

783

561

761

173

793

131

331

073

693

641

741

573

204

951

161

583

214

F°LIOCROODTUOGNIRETNEERUTAREPMETRIA

731

831

041

141

304

724

154

941

151

904

261 514

541 304

851 904

171

414 341

204 551

804

751 414

931 704

451 314

861 424

431 224

841 824

261 044

251

334

754

461

661

934

464

641

841

724

254

951

061

334

854

271

371

934

464

441

541

624

944

651

751

234

554

851

951

834

264

041

241

234

854

551

751

934

564

071

271

154

774

531

631

844

474

051

151

454

184

461

561

764

494

341

574

894

451

651

184

505

861

071

884

215

941

051

674

005

161

361

384

805

571

671

984

515

641

741

274

694

851

951

974

305

061

161

684

015

341

441

484

905

851

061

194

715

371

571

405

035

731

931

005

625

251

451

705

435

761

861

125

845

TABLE 11B

PART LOAD HEATING PRESSURE/TEMPERATURE

NRUTER

RIA

LEDOM

1H03I

1H63I

1H24I

1H84I

1H06I

.PMET ERUSSERP

BD°07

0 5 01 51 02 52 03 53 04 54 05 55 06 56 07

ediSwoL

ediShgiH

932

942

852

862

872

882

792

703

ediShgiH

332

142

842

552

262

072

ediShgiH

242

052

852

562

ediShgiH

562

172

ediShgiH

362

272

772

282

182

192

372

182

882

392

003

903

772

482

882

692

992

503

813

723

401

113

513

401

292

992

301

303

903

501

813

133

401

633

543

F°LIOCROODTUOGNIRETNEERUTAREPMETRIA

511

521

823 411

703 011

613 511

043 311

653

531

143

353

321

331

513

223

811

621

323

133

421

431

843

753

221

131

663

773

Manual 2100-549G Page 59 of 59

641

651

663

873

241

251

033

833

431

241

833

543

341

351

563

473

041

941

783

893

Bard I30H1, I60H1, I36H1, I42H1, I30H1D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual