Bard QH422, QH482, QH602, QH243, QH362, QH302, QTEC SERIES PACKAGED HEAT PUMP QH362 User Manual

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QTEC SERIES

PACKAGED HEAT PUMP

INSTALLATION

INSTRUCTIONS Models: QH243 QH302

QH362 QH422

QH482 QH602

Bard Manufacturing Company, Inc.

Manual:

2100-420H

Bryan, Ohio 43506

Supersedes: 2100-420G

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

File:

Vol II Tab 14

Date:

06-28-07

 

 

 

 

 

 

 

© Copyright 2004

 

Manual 2100-420H

Page

1 of 34

CONTENTS

Getting Other Information and Publications

 

For more information, contact these publishers:

.......... 3

QTEC General Information

 

QTEC Model Nomenclature ..........................................

4

Shipping Damage .........................................................

8

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

8

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

9

General.........................................................................

9

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

9

Duct Work ..................................................................

11

Filters..........................................................................

11

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

12

Condensate Drain ......................................................

12

Service Light...............................................................

13

Installation Instructions

 

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

14

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

15

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

15

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

16

Figures

 

 

 

 

Figure 1

Unit Dimensions ..........................................

 

7

Figure 2

Air Seal on Bottom of Unit ...........................

 

8

Figure 3

Removal of Unit From Skid .........................

 

8

Figure 4

Unit on Appliance Cart for Moving ...............

9

Figure 5

Installation With Free Blow Plenum ..........

10

Figure 6

Ducted Application .....................................

 

10

Figure 7

Supply Duct Connections ..........................

 

11

Figure 8

Filter Location ............................................

 

11

Figure 9

Optional Side Drain ...................................

 

12

Figure 10

Standard Rear Drain ..................................

 

12

Figure 11

Rear Drain (Top View) ...............................

 

13

Figure 12

Unit Mounting ............................................

 

13

Figure 13

Removing Locking Screws from Wheels...

14

Figure 14

Component Location .................................

 

15

Figure 15

Thermostat Plug Terminals ........................

 

17

Figure 16

Thermostat Wiring Diagram

"X" Option ....

18

Figure 17

Thermostat Wiring Diagram

"A" Option ....

19

Figure 18

Thermostat Wiring Diagram

"D" Option ...

20

Figure 19

Fresh Air Damper Removal .......................

 

24

Figure 20

QERV Removal .........................................

 

25

Figure 21

Heat Pump Control Board .........................

 

26

Figure 22

Low Pressure Control Bypass Timer .........

27

Figure 23

Control Disassembly .................................

 

31

Figure 24

Winding Test ..............................................

 

31

Figure 25

Drip Loop ...................................................

 

31

Figure 26

Fan Blade Setting ......................................

 

32

Manual

2100-420H

 

 

Page

2 of 34

 

 

Start Up

 

 

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

 

21

Optional CFM (QH362, QH422, QH482 & QH602 Only)

..... 21

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

 

21

Phase Monitor ................................................................

 

21

Three Phase Scroll Compressor Start Up

 

 

Information ................................................................

 

21

Service Hints ..................................................................

 

22

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

 

22

Vent Options ..................................................................

 

23

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

 

26

Optional Climate Controls Sequence

 

 

of Operation ..............................................................

 

26

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

 

26

Defrost Cycle .................................................................

 

27

Troubleshooting

 

 

Solid State Heat Pump Control Troubleshooting

 

 

Procedure ......................................................................

 

29

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

 

29

Troubleshooting GE ECM™ Blower Motors.............

 

30-31

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

 

32

Refrigerant Charge ........................................................

 

32

Pressure Charts ......................................................

33 - 34

Tables

 

 

Table 1

Factory Built-In Electric Heat Table

.............. 4

Table 2

Electrical Specifications ................................

5

Table 2A

Electrical Specifications ................................

6

Table 3

Operating Voltage Range ...........................

15

Table 4

Wall Thermostats ........................................

17

Table 5

Troubleshooting ..........................................

28

Table 6

Temperature vs Resistance of

 

 

Temperature Sensor ...................................

29

Table 7

Fan Blade Dimensions ...............................

32

Table 8

Super Heat at Compressor .........................

32

Table 9

Indoor Blower Performance ........................

32

Table 10

Cooling Pressure ........................................

33

Table 11

Heating Pressure ........................................

34

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

2100-420H

Page

3 of 34

QTEC Series General Information

QTEC MODEL NOMENCLATURE

 

 

 

QH 36 2 A 10

X

X

X

MODEL NUMBER |

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KW

 

 

FILTER OPTIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH - QTEC Model

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0Z - 0KW

 

 

X - 1-Inch Fiberglass

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

05 - 5KW

 

 

 

(Standard)

 

 

CAPACITY |

 

 

 

 

 

 

 

 

 

 

 

06 - 6KW

 

 

F

- 2-Inch Fiberglass

 

 

 

 

 

 

 

 

 

 

 

 

 

09 - 9KW

 

 

P - 2-Inch Pleated

 

 

24

- 2 Ton

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 - 10KW

 

 

 

 

 

 

 

 

 

30

- 2½ Ton

REVISION |

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36

- 3 Ton

 

 

 

 

 

 

 

 

 

 

12 - 12KW

 

 

 

 

 

 

 

 

 

42

- 3½ Ton

SPECIAL UNITS |

 

 

 

 

15 - 15KW

 

 

 

 

COLOR OPTIONS

 

 

 

 

 

 

 

 

 

 

 

48

- 4 Ton

L - Low Ampacity Circuit

 

 

 

 

 

 

 

 

V - Platinum w/Slate

60

- 5 Ton

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Front (Vinyl)

 

 

 

VOLTS & PHASE |

 

 

 

 

 

 

 

 

 

4

- Gray paint

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A - 230/208/60/1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B - 230/208/60/3

 

VENTILATION OPTIONS

 

 

 

 

 

 

 

C - 460/60/3

 

 

 

 

 

 

 

 

 

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

X X X

COIL OPTIONS

X - Standard

INTERNAL CONTROLS

X - Standard

High Pressure Switch

Low Pressure Switch

Compressor Time Delay E - Low Ambient Control

Q - Outdoor Thermostat R - Low Ambient Control &

Outdoor Thermostat

CLIMATE CONTROL OPTIONS

X - None

A - Electronic/Non Prog/Man C/O

D - Electronic/Prog/Man/Auto

TABLE 1

FACTORY BUILT-IN ELECTRIC HEAT TABLE

 

 

 

 

 

 

 

 

 

QH362-A

QH362-B

QH362-C

 

 

 

 

 

 

 

 

 

QH422-A

QH422-B

QH422-C

 

QH243-A

 

 

 

 

 

 

QH482-A

QH482-B

QH482-C

Models

QH302-A

QH243-B

QH302-B

QH243-C

QH302-C

QH602-A

QH602-B

QH602-C

 

240V-1

208V-1

240V-1

208V-1

240V-1

208V-1

480V-3

480V-3

240V-1

208V-1

240V-1

208V-1

480V-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KW

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

BTUH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.0

16,380

12,290

 

 

 

 

 

 

16,380

12,290

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.0

 

 

20,500

15,360

20,500

15,360

20,500

20,500

 

 

20,500

15,360

20,500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9.0

 

 

30,700

23,000

30,700

23,000

30,700

30,700

 

 

30,700

23,000

30,700

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10.0

32,670

24,570

 

 

 

 

 

 

32,670

24,570

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12.0

 

 

 

 

41,000

30,700

 

41,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15.0

 

 

 

 

 

 

 

 

49,150

36,860

49,150

36,860

49,150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual

2100-420H

Page

4 of 34

TABLE 2

ELECTRICALSPECIFICATIONS

SINGLE CIRCUIT

DUAL CIRCUIT

 

 

 

3

1

2

2

 

3

 

1

2

2

 

 

 

 

 

 

 

 

 

 

MAXIMUM

 

 

 

 

 

 

 

 

 

 

 

MINIMUM

EXTERNAL

FIELD

 

 

 

 

 

 

 

 

 

FUSE OR

 

 

 

 

 

 

MAXIMUM

FIELD

 

CIRCUIT

CIRCUIT

POWER

GROUND

 

 

NO.

 

EXTERNAL

 

AMPACITY

BREAKER

WIRE SIZE

WIRE SIZE

 

RATED

FIELD

MINIMUM

FUSE OR

POWER

GROUND

 

 

 

 

 

 

 

 

 

 

 

VOLTS &

POWER

CIRCUIT

CIRCUIT

WIRE

WIRE

CKT

 

CKT

CKT

 

CKT

CKT

CKT

CKT

CKT

MODELS

PHASES

CIRCUITS

AMPACITY

BREAKER

SIZE

SIZE

A

 

B

A

 

B

A

B

A

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH243-A0Z

 

1

22

30

10

10

--

 

--

--

 

--

--

--

--

--

-A05

230/208-1

1

47

50

8

10

--

 

--

--

 

--

--

--

--

--

-A10

 

1 OR 2

72

80

4

8

22

 

50

30

 

50

10

8

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH243-B0Z

 

1

17

20

12

12

--

 

--

--

 

--

--

--

--

--

-B06

230/208-3

1

35

35

8

10

--

 

--

--

 

--

--

--

--

--

-B09

 

1

44

45

8

10

--

 

--

--

 

--

--

--

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH243-C0Z

 

1

8

15

14

14

--

 

--

--

 

--

--

--

--

--

-C06

460-3

1

17

20

12

12

--

 

--

--

 

--

--

--

--

--

-C09

 

1

22

25

10

10

--

 

--

--

 

--

--

--

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH302-A0Z

 

1

24

35

8

10

--

 

--

--

 

--

--

--

--

--

-A05

230/208-1

1

49

50

8

10

--

 

--

--

 

--

--

--

--

--

-A10

 

1 OR 2

74

80

4

8

24

 

50

30

 

50

10

8

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH302-B0Z

 

1

18

25

10

10

--

 

--

--

 

--

--

--

--

--

-B06

230/208-3

1

36

40

8

10

--

 

--

--

 

--

--

--

--

--

-B09

1

45

45

8

10

--

 

--

--

 

--

--

--

--

--

-B12

 

1

54

60

6

10

--

 

--

--

 

--

--

--

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH302-C0Z

 

1

9

15

14

14

--

 

--

--

 

--

--

--

--

--

-C06

460-3

1

18

20

12

12

--

 

--

--

 

--

--

--

--

--

-C09

1

23

25

10

10

--

 

--

--

 

--

--

--

--

--

 

 

 

-C12

 

1

27

30

10

10

--

 

--

--

 

--

--

--

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH362-A0Z

 

1

29

45

8

10

--

 

--

--

 

--

--

--

--

--

-A05

230/208-3

1

54

60

6

10

--

 

--

--

 

--

--

--

--

--

-A10

1 OR 2

79

90

4

8

29

 

50

40

 

50

8

8

10

10

4 -A15

 

1 OR 2

82

90

4

8

32

 

50

40

 

50

8

8

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH362-B0Z

 

1

23

30

10

10

--

 

--

--

 

--

--

--

--

--

-B06

230/208-3

1

41

45

8

10

--

 

--

--

 

--

--

--

--

--

-B09

1

50

50

8

10

--

 

--

--

 

--

--

--

--

--

5 -B15

 

1

52

60

6

10

--

 

--

--

 

--

--

--

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH362-C0Z

 

1

11

15

14

14

--

 

--

--

 

--

--

--

--

--

-C06

460-3

1

20

20

12

12

--

 

--

--

 

--

--

--

--

--

-C09

1

24

30

10

10

--

 

--

--

 

--

--

--

--

--

 

 

 

5 -C15

 

1

26

30

10

10

--

 

--

--

 

--

--

--

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes.

3 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.

4 Maximum KW that can operate with heat pump on is 10KW. Other 5KW energizes during emergency heating only. 5 Maximum KW that can operate with heat pump on is 9KW. Other 6KW energizes during emergency heating only.

ELECTRICAL SPECIFICATIONS CONTINUED ON PAGE 6 TABLE 2A

Manual

2100-420H

Page

5 of 34

TABLE 2A

ELECTRICALSPECIFICATIONS

(Continued)

SINGLE CIRCUIT

DUAL CIRCUIT

 

 

 

3

1

2

2

3

 

1

 

2

 

2

 

 

 

 

 

 

 

 

 

MAXIMUM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXTERNAL

 

 

 

 

 

 

 

 

 

 

MAXIMUM

 

 

MINIMUM

FUSE OR

FIELD

 

 

 

 

 

NO.

 

EXTERNAL

FIELD

 

CIRCUIT

CIRCUIT

POWER

GROUND

 

RATED

FIELD

MINIMUM

FUSE OR

POWER

GROUND

AMPACITY

BREAKER

WIRE SIZE

WIRE SIZE

 

POWER

CIRCUIT

CIRCUIT

WIRE

WIRE

 

 

 

 

 

 

 

 

 

 

 

 

VOLTS &

CKT

CKT

CKT

 

CKT

CKT

 

CKT

CKT

 

CKT

MODEL

CIRCUITS

AMPACITY

BREAKER

SIZE

SIZE

 

 

 

PHASE

 

 

 

 

 

A

B

A

 

B

A

 

B

A

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH422-A0Z

 

1

33

50

8

10

--

--

--

 

--

--

 

--

--

 

--

-A05

230/208-1

1

58

60

6

10

--

--

--

 

--

--

 

--

--

 

--

-A10

1 OR 2

83

90

4

8

33

50

40

 

50

8

 

8

10

 

10

4 -A15

 

1 OR 2

83

90

4

8

33

50

40

 

50

8

 

8

10

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH422-B0Z

 

1

24

30

10

10

--

--

--

 

--

--

 

--

--

 

--

-B06

230/208-3

1

43

50

8

10

--

--

--

 

--

--

 

--

--

 

--

-B09

1

52

60

6

10

--

--

--

 

--

--

 

--

--

 

--

5 -B15

 

1

52

60

6

10

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH422-C0Z

 

1

12

15

14

14

--

--

--

 

--

--

 

--

--

 

--

-C06

460-3

1

21

25

10

10

--

--

--

 

--

--

 

--

--

 

--

-C09

1

26

30

10

10

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

5 -C15

 

1

26

30

10

10

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH482-A0Z

 

1

36

50

8

10

--

--

--

 

--

--

 

--

--

 

--

-A05

230/208-1

1

61

70

6

8

36

25

50

 

25

8

 

10

10

 

10

-A10

 

1 OR 2

86

90

3

8

36

50

50

 

50

8

 

8

10

 

10

4 -A15

 

1 OR 2

86

90

3

8

36

50

50

 

50

8

 

8

10

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH482-B0Z

 

1

26

40

8

10

--

--

--

 

--

--

 

--

--

 

--

-B06

230/208-3

1

44

50

8

10

--

--

--

 

--

--

 

--

--

 

--

-B09

1

53

60

6

10

--

--

--

 

--

--

 

--

--

 

--

5 -B15

 

1

53

60

6

10

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH482-C0Z

 

1

14

15

14

14

--

--

--

 

--

--

 

--

--

 

--

-C06

460-3

1

23

25

10

10

--

--

--

 

--

--

 

--

--

 

--

-C09

1

27

30

10

10

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

5 -C15

 

1

27

30

10

10

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH602-A0Z

 

1

46

60

8

10

--

--

--

 

--

--

 

--

--

 

--

-A05

230/208-1

1 or 2

71

80

4

8

46

25

60

 

25

8

 

10

10

 

10

-A10

 

1 or 2

96

110

3

6

46

50

60

 

50

8

 

8

10

 

10

4 -A15

 

1 or 2

96

110

3

6

46

50

60

 

50

8

 

8

10

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH602-B0Z

 

1

31

45

8

10

--

--

--

 

--

--

 

--

--

 

--

-B09

230/208-3

1

58

70

6

8

--

--

--

 

--

--

 

--

--

 

--

5 -B15

 

1

58

70

6

8

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QH602-C0Z

 

1

17

25

10

10

--

--

--

 

--

--

 

--

--

 

--

-C09

460-3

1

30

35

8

10

--

--

--

 

--

--

 

--

--

 

--

5 -C15

 

1

30

35

8

10

--

--

--

 

--

--

 

--

--

 

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes.

3 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.

4 Maximum KW that can operate with heat pump on is 10KW. Other 5KW energizes during emergency heating only. 5 Maximum KW that can operate with heat pump on is 9KW. Other 6KW energizes during emergency heating only.

Manual

2100-420H

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6 of 34

FIGURE 1

UNIT DIMENSIONS

Manual

2100-420H

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7 of 34

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 forklift 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 the unit. The unit can be slid forward on the skid until

FIGURE 2

AIR SEAL UNDER QTEC UNIT

Air Seal

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.

FIGURE 3

REMOVAL OF UNIT FROM SKID

Hold

Skid

Down

A Shipping Brackets

B Front Wheels Over Edge

C Front Wheels On Floor

 

 

 

 

Manual

2100-420H

 

 

Page

8 of 34

 

 

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.

FIGURE 4

UNIT ON APPLIANCE CART

QTEC UNIT

(Right Side)

STRAP

APPLIANCE

CART

COMPRESSOR

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.

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 3 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.

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. 4½ in. This provides enough clearance to install the duct work. See Figure 6.

Manual

2100-420H

Page

9 of 34

FIGURE 5

INSTALLATION WITH FREE BLOW PLENUM

FIGURE 6

DUCTEDAPPLICATION

Manual

2100-420H

Page

10 of 34

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 QTEC series heat pump has provision to attach a supply air duct to the top of the unit. Duct connection size is 12 inches x 20 inches. The duct work is field supplied and must be attached in a manner to allow for ease of removal when it becomes necessary to slide the unit out from the wall for service. See Figure 7 for suggested attachment method.

FIGURE 7

SUPPLY DUCT CONNECTIONS

SUPPLY DUCT

TO BE FIELD

SUPPLIED

ATTACHMENT

SCREWS TO

BE FIELD

SUPPLIED

ROOM SIDE

OF QTEC UNIT

DUCT FLANGE

PROVIDED WITH

UNIT

NOTE: Unit cabinet, supply air duct and free blow plenum are approved for “0” clearance to combustible material.

The QTEC series heat pumps are designed for use with free return (non-ducted) and either free blow with the use of QPB Plenum Box or a duct supply air system.

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

For hot water coil option a QPBHWxx-F for free blow or QPBHWxx-D for ducted airflow is used

When used with a ducted supply, a QCX Cabinet Extension can be used to conceal the duct work above the unit to the ceiling. This extends 20" above the unit for a total height above the floor of 10'-7/8". 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 air flow up to the maximum ESP shown in Table 9. 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 1-inch throw away filters [(1) 16x16 and (1) 16x20] are supplied with each unit. The filters slide into filter brackets. Refer to Figure 8.

The filters are serviced from the inside of the building by opening the hinged door. This door is attached by 1/4 turn fasteners and one locking latch.

The internal filter brackets are adjustable to accommodate 2-inch filters. The tabs for the 1-inch filters must be bent down to allow the 2-inch filters to slide in place.

FIGURE 8

FILTER LOCATION

FILTERS

RETURN AIR

GRILLE

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