Bard QA241D, QA421D, QA301D, QA361D, QA481D Installation Instructions Manual

QTEC SERIES

PACKAGED INSTALLATION INSTRUCTIONS

AIR CONDITIONER

Models: QA241D QA301D QA361D QA421D QA481D QA601D

Bard Manufacturing Company Bryan, Ohio 43506

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

MIS-1554

Manual: 2100-438C Supersedes: 2100-438B File: Vol II Tab 14 Date: 06-02-04

CONTENTS

Getting Other Information and Publications

For more information, contact these publishers: .......... 1

EC General Information

QT

EC Model Nomenclature .......................................... 2

QT

Shipping Damage ......................................................... 7

Unit Removal From Skid .............................................. 7

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

General ......................................................................... 8

Minimum Installation Height ......................................... 8

Duct Work .................................................................. 10

Filters .......................................................................... 10

Fresh Air Intake .......................................................... 11

Condensate Drain ...................................................... 11

Separate Evaporator Drain Connection ..................... 11

Service Light ............................................................... 12

Installation Instructions

Mounting the Unit ....................................................... 13

Wiring — Main Power ................................................. 14

Wiring — Low Voltage Wiring..................................... 14

Low Voltage Connections........................................... 15

General ....................................................................... 15

Start Up

Description of Standard Equipment ............................... 20

Optional CFM (QA361, QA421, QA481

and QA601 Only) ........................................................... 20

Important Installer Note.................................................. 20

Phase Monitor ................................................................ 20

Three Phase Scroll Compressor Start Up

Information ................................................................ 20

Compressor Control Module .......................................... 21

Adjustments ................................................................... 21

Service Hints .................................................................. 21

Mist Eliminator Service .................................................. 22

Vent Options .................................................................. 22

Sequence of Operation .................................................. 26

CRV / QERV Operation.................................................. 26

Optional Climate Controls Sequence

of Operation .............................................................. 26

Pressure Service Ports .................................................. 26

Troubleshooting

Troubleshooting Table .................................................... 29

Fan Blade Setting Dimensions ...................................... 30

Refrigerant Charge ........................................................ 30

Pressure Chart ............................................................... 31

Figures

Figure 1 Unit Dimensions .......................................... 6

Figure 2 Air Seal on Bottom of Unit ........................... 7

Figure 3 Removal of Unit From Skid ......................... 7

Figure 4 Unit on Appliance Cart for Moving ............... 8

Figure 5 Installation With Free Blow Plenum ............ 9

Figure 6 Ducted Application ....................................... 9

Figure 7 Supply Duct Connections .......................... 10

Figure 8 Filter Location ............................................ 10

Figure 9 Side Drain .................................................. 11

Figure 10 Optional Rear Drain ................................... 11

Figure 11 Rear Drain (Top View) ............................... 12

Figure 12 Unit Mounting ............................................ 12

Figure 13 Screws in Wheels of Unit .......................... 13

Figure 14 Component Location ................................. 14

Figure 15 Thermostat Plug Terminals ........................ 16

Figure 16 Thermostat Wiring Diagram "X" Option .... 17

Figure 17 Thermostat Wiring Diagram "G" Option ... 18

Figure 18 Thermostat Wiring Diagram "E" Option .... 19

Figure 19 Fresh Air Damper Removal ....................... 24

Figure 20 QERV Removal ......................................... 25

Figure 21 Air Conditioning Mode Circuit Diagram ..... 27

Figure 22 Dehumidification Mode Circuit Diagram .... 27

Figure 23 Fan Blade Setting ...................................... 30

Tables

Table 1 Factory Built-In Electric Heat Table .............. 3

Table 2 Electrical Specifications ................................ 4

Table 2A Electrical Specifications ................................ 5

Table 3 Operating Voltage Range ........................... 14

Table 4 Wall Thermostats and Subbase

Combinations .............................................. 16

Table 5 Troubleshooting .......................................... 29

Table 6 Fan Blade Dimensions ............................... 30

Table 7 Super Heat at Compressor ......................... 30

Table 8 Indoor Blower Performance ........................ 30

Table 9 Cooling Pressure ........................................ 31

i

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 2100-438 Page 1

QT

EC

Series General Information

QTEC MODEL NOMENCLATURE

QA 36 1 D A 10 X X V X X X

MODEL NUMBER |

QA - QTEC Model

CAPACITY |

24 - 2 Ton 30 - 2-1/2 Ton 36 - 3 Ton 42 - 3-1/2 Ton 48 - 4 Ton 60 - 5 Ton

DEHUMDIFICATION | REHEAT CYCLE

REVISION |

VOLTS & PHASE |

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

KW

0Z -0KW 05 - 5KW 06 - 6KW 09 - 9KW 10 - 10KW 12 - 12KW 15 - 15KW

VENTILATION OPTIONS

X - Barometric Fresh Air Damper (Standard) B - Blank-off Plate V - Commercial Ventilator - Motorized w/Exhaust

Spring Return

P - Commercial Ventilator - Motorized w/Exhaust

Power Return

R - Energy Recovery Ventilator w/Exhaust

FILTER OPTIONS

X - 1 Inch Fiberglass

(Standard) F - 2 Inch Fiberglass P - 2 Inch Pleated

COLOR OPTIONS

V - Platinum w/Slate

Front (Vinyl)

4 - Gray paint

COIL OPTIONS

X - Standard 1 - Coated Evap. Coil 2 - Coated Cond.

Coil

3 - Coated Evap. &

Cond. Coil

I

NTERNAL CONTROLS

X - Standard

• High Pressure Switch

• Compressor Time Delay

G - LPC (Low Pressure

Control)

CLIMATE CONTROL OPTIONS

X - None G - Electronic/Non Prog/Man C/O

with Humidistat

E - Electronic/Prog/Man/Auto

with Humidistat

Manual 2100-438 Page 2

CD163AQ

CD124AQ

CD184AQAD106AQBD106AQCD106AQ

BD163AQ

BD124AQ

BD184AQ

AD163AQ

AD124AQ

AD184AQ

TABLE 1

FACTORY BUILT-IN ELECTRIC HEAT TABLE

AD142AQ

AD103AQBD142AQBD103AQCD142AQCD103AQ

1-V0421-V8021-V0421-V8021-V0421-V8023-V0843-V0841-V0421-V8021-V0421-V8023-V0841-V0421-V8021-V0421-V8023-V084

sledoM

0.5083,61092,21 083,61092,21

WKHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTBHUTB

0.9007,03000,32007,03000,32007,03007,03007,03000,32007,03007,03000,32007,03

0.6005,02063,51005,02063,51005,02005,02005,02063,51005,02

0.21000,14007,03000,14

0.01076,23075,42 076,23075,42076,23075,42

0.51 051,94068,63051,94068,63051,94051,94068,63051,94068,63051,94

Manual 2100-438 Page 3

TABLE 2

ELECTRICAL SPECIFICATIONS

TIUCRICELGNIS TIUCRICLAUD

D 51A

D 51B

D 51C

3

DETAR

SLEDOM

Z0AD142AQ 50AD 01AD

Z0BD142AQ 60BD 90BD

Z0CD142AQ 60CD 90CD

Z0AD103AQ 50AD 01AD

Z0BD103AQ 60BD 90BD 21BD

Z0CD103AQ 60CD 90CD 21CD

Z0AD163AQ 50AD 01AD

Z0BD163AQ 60BD 90BD

Z0CD163AQ 60CD 90CD

&STLOV SESAHP

1-802/032

3-802/032

3-064

1-802/032

3-802/032

3-064

3-802/032

3-064

.ON

DLEIF

REWOP

STIUCRIC

1 1 1

1 1 1 1

1 1 1

2RO1

1 1 1 1

MUMINIM TIUCRIC

02 03 55

51 42 33

8

21 71

52 23 75

81 52 43 34

01 41 81 32

82 33 85 38

12 62 53 35

11 41 81 72

1

YTICAPMA

03 03 06

02 52 53

51 51 02

53 53 06

52 52 53 54

51 51 02 52

53 53 06 09

03 03 53 06

51 51 02 03

2

MUMIXAM

LANRETXE ROESUF TIUCRIC

REKAERB

ERIW

EZIS

01 01

6

21 01

8

41 41 21

8 8 6

01

01 8 6

41

21

01

8 8 6 4

01

01 8 6

41

21

01

2

DLEIF

REWOP

ERIW

EZIS

01 01 01

21 01 01

41 41 21

01 01 01

01 01 01 01

41 41 21 01

01

01 8 8

01

41

21

01

3

MUMINIM TIUCRIC

DNUORG

YTICAPMA

TKC

A

B

--

85

52

--

1

MUMIXAM

ROESUF TIUCRIC

TKC

A

B

--

06

52

--

2

LANRETXE

REKAERB

TKC

DLEIF

REWOP

TKC

A

B

--

6

01

--

2

EZISERIW

TKC

DNUORG

EZISERIW

TKC

A

B

--

01

--

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.

"

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.

ELECTRICAL SPECIFICATIONS CONTINUED ON PAGE 5 TABLE 2A

Manual 2100-438 Page 4

D51A

D51B

D51C

D51A

D51B

D51C

D51A

D51B

D51C

TABLE 2A

ELECTRICAL SPECIFICATIONS

TIUCRICELGNIS TIUCRICLAUD

3

.ON

DETAR

LEDOM

Z0AD124AQ 50AD 01AD

Z0BD124AQ 60BD 90BD

Z0CD124AQ 60CD 90CD

Z0AD184AQ 50AD 01AD

Z0BD184AQ 50BD 01BD

Z0CD184AQ 60CD 90CD

Z0AD106AQ 01AD

Z0BD106AQ 90BD

Z0CD106AQ 90CD

&STLOV

ESAHP

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

REWOP

STIUCRIC

1 1 1

2RO1

1 1 1 1

1 1 1

2RO1

1 1 1 1

1 1

2ro1

1 1 1

MUMINIM TIUCRIC

33 33 85 38

52 62 53 35

31 41 81

72

53 53 85 38

62 62 53 35

41 41 81

72

64 95 48

23 63 55

71 91 82

1

YTICAPMA

05 05 06 09

53 53 53 06

51 51 02 03

05 05 06 09

53 53 04 06

51 51 02 03

06 06 09

54 54 06

02 02 03

2

MUMIXAM

LANRETXE ROESUF TIUCRIC

REKAERB

ERIW

EZIS

8 8 6 4

8 8 8 6

41 41 21 01

8 8 6 4

8

8 8 6

21 21 21 01

8 6 4

8 8 6

21 21 01

2

DLEIF

REWOP

ERIW

EZIS

01

01 8 8

01

41

21

01

01 8

01

21

01

01 8

01

21

01

3

MUMINIM

TIUCRIC

DNUORG

YTICAPMA

TKC

A

B

--

85

52

--

85

52

--

95

52

--

1

MUMIXAM

ROESUF TIUCRIC

REKAERB

TKC

A

B

--

06

52

--

06

52

--

06

52

--

2

LANRETXE

TKC

DLEIF

REWOP

EZISERIW

TKC

A

B

--

6

01

--

8

01

--

8

01

--

2

DNUORG

EZISERIW

TKC

A

TKC

B

--

01

--

01

--

01

--

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.

"

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.

Manual 2100-438 Page 5

FIGURE 1

UNIT DIMENSIONS

Manual 2100-438 Page 6

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be checked for external signs of shipping damage. The skid must remain attached to the unit 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 and remove from the skid. Check unit wheels to ensure that wheels are locked before removing from skid. Extreme caution must be taken to prevent injury to personnel and damage to the unit.

It is recommended that the unit not be removed from the skid with a fork lift since the air seal under the unit could be damaged. See Figure 2.

The shipping brackets on each side of the unit must be removed and discarded. See Figure 3-A. The return air grille panel can be removed to provide a place to hold

FIGURE 2

AIR SEAL UNDER QT

Air Seal

the unit. The unit can be slid forward on the skit until the front wheels hang over the edge of the skid. See Figure 3-B. The unit can be tipped forward and slid down the edge of the skid until the front wheels touch the ground. See Figure 3-C. The wheels will not roll. They are shipped from the factory locked so they will not roll. The back of the skid will have to be held down to keep it from tipping up. The skid can be slid out from under the unit. The unit can then be set upright.

EC

UNIT

MIS-1008

FIGURE 3

REMOVAL OF UNIT FROM SKID

Hold Skid Down

A Shipping Brackets B Front Wheels Over Edge C Front Wheels On Floor

MIS-1007

Manual 2100-438 Page 7

HANDLING UNIT AFTER REMOVAL FROM SKID

WARNING

Exercise extreme caution when pushing the unit on the rollers. Handle and push from the lower 1/3 of the unit. Insure that debris is not on the floor where the unit is to be moved on the rollers. Failure to do so could result in the unit tipping over and causing bodily injury and/ or damage to the unit.

The unit will have to be turned sideways and removed from the skid to fit through a 36” doorway. If the door height allows, the unit can be slid sideways through the door.

If the unit can not be slid through the door, then the unit will have to be put on a cart and tipped down to roll through the door. It is recommended that an appliance cart by used with a strap to hold the unit on the cart.

The wheels of the unit must be locked. If the wheels were allowed to roll, the unit could roll off the cart. The unit should always be carted from the left side. This is the side where the compressor is located. See Figure 4. The blade of the appliance cart should be slid under the wheels of the unit. The strap of the appliance cart should be placed around the unit and strapped tightly. Help will be required to tip the unit back onto the cart. The unit can be leaned far enough back to be rolled through the door. Be careful when setting the unit back up to keep from damaging the unit.

GENERAL

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

The unit is designed for use with or without duct work. For use without duct work, Plenum Box QPB42 is recommended.

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

APPLIANCE

CART

FIGURE 4

UNIT ON APPLIANCE CART

QTEC UNIT

(Right Side)

STRAP

These instructions and any instructions packaged with any separate equipment required to make up the entire 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 1 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss 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.

COMPRESSOR

Manual 2100-438 Page 8

MIS-1555

MINIMUM INSTALLATION HEIGHT

The minimum installation height of the unit with a Free Blow Plenum is 8 ft. 6 in. This provides enough clearance for the plenum to be removed. See Figure 5.

The minimum installation height for ducted applications is 8 ft. 4-1/2 in. This provides enough clearance to install the duct work. See Figure 6.

Bard QA241D, QA421D, QA301D, QA361D, QA481D Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual