York B1HP024 THRU 048 User manual

York B1HP024 THRU 048 User manual

®

INSTALLATION INSTRUCTION

CHAMPION

®

SERIES

SINGLE PACKAGE HEAT PUMPS

Supersedes: Nothing

035-19392-000-A-0303

MODELS B1HP024 THRU 048

2 THRU 4 TON

(13 SEER)

GENERAL

YORK Model B1HP units are factory assembled heat pumps designed for outdoor installation on a roof top or a slab. Fieldinstalled electric heater accessories are available to provide supplemental electric heat combined with electric cooling and heating.

The units are completely assembled on rigid, removable base rails. All piping, refrigerant charge, and electrical wiring is factory installed and tested. The units require only electric power and duct connections at the point of installation.

The electric heaters have nickel-chrome resistance wire elements and utilize single point power connection.

INSPECTION

As soon as a unit is received, it should be inspected for possible damage during transit. If damage is evident, the extent of the damage should be noted on the carrier's freight bill. A separate request for inspection by the carrier's agent should be made in writing. Refer to Form 50.15-NM for additional information.

REFERENCE

Additional information on the design, installation, operation and service of this equipment is available in the following reference forms:

55.70-N1 — General Installation

55.70-N2 — Pre-start & Post-start Check List

035-16605-001 — Electric Heater Accessory

REPLACEMENT PARTS

Refer to User’s Maintenance and Service Information

Manual for complete listing of replacement parts on this equipment.

All forms referenced in this instruction may be ordered from:

Standard Register

Norman, OKlahoma 73069

Toll Free: Tel. 877-318-9675/Fax. 877-379-7920

Installer should pay particular attention to the words: NOTE, CAUTION and WARNING. Notes are intended to clarify or make the installation easier. Cautions are given to prevent equipment damage. Warnings are given to alert installer that personal injury and/or equipment damage may result if installation procedure is not handled properly.

CAUTION

THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE WITH THE ENCLOSED INSTALLATION INSTRUCTIONS

AND ANY APPLICABLE LOCAL, STATE, AND NATIONAL CODES INCLUDING, BUT NOT LIMITED TO, BUILDING, ELECTRI-

CAL, AND MECHANICAL CODES

WARNING

INCORRECT INSTALLATION MAY CREATE A CONDITION WHERE THE OPERATION OF THE PRODUCT COULD CAUSE

PERSONAL INJURY, PROPERTY DAMAGE AND/OR DEATH.

WARNING

DE-ENERGIZE THE ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING TO INSPECT, REPAIR OR PERFORM

MAINTENANCE TO THE UNIT.

035-19392-000-A-0303

B

PRODUCT NOMENCLATURE

1 H P 0 2 4 A 0 6

PRODUCT CATEGORY

B = Single Package Heat Pumps

(Air Cooled)

PRODUCT GENERATION

1 = NEW or Current Design

PRODUCT IDENTIFIER

HP = Heat Pump (13 SEER)

NOMINAL COOLING

CAPACITY (MBH)

024 = 24,000 BTUH 042 = 42,000 BTUH

030 = 30,000 BTUH 048 = 48,000 BTUH

036 = 36,000 BTUH

VOLTAGE CODE

06 = 208/230-1-60

25 = 208/230-3-60

46 = 460-3-60

FACTORY

INSTALLED ELECTRIC HEAT

A = No Electric Heat Installed

INSTALLATION

LIMITATIONS

These units must be installed in accordance with the following national and local safety codes.

gle iron frame providing adequate support under the compressor/condenser section.

5. Maintain level tolerance of unit to 1/8" maximum.

1. National Electrical Code ANSI/NFPS No. 70 or Canadian

Electrical Code Part 1, C22.1 (latest editions).

2. Local plumbing and waste water codes and other applicable local codes.

RIGGING OR HANDLING

Refer to Table 1 for unit application data and to Table 5 for electric heat application data.

Care must be exercised when moving the unit. Do not remove any packaging until the unit is near the place of installation. Rig unit with slings placed under the unit. Spreader bars of sufficient length should be used across the top of the unit.

If components are to be added to a unit to meet local codes, they are to be installed at the dealer's and/or the customer's expense.

Size of unit for proposed installation should be based on heat loss/heat gain calculations made in accordance with industry recognized procedures identified by the Air Conditioning Contractors of America.

BEFORE LIFTING A UNIT, MAKE SURE THAT ITS WEIGHT

IS DISTRIBUTED EQUALLY ON THE CABLES SO THAT IT

WILL LIFT EVENLY.

LOCATION

Units may also be moved or lifted with a fork-lift. Slotted openings in the skid are provided for this purpose. Forks must pass completely through the base.

TABLE 1 - UNIT APPLICATION DATA

Refer to Table 2 for unit weights and to Figure 1 for approximate center of gravity.

Voltage Variation

Min. / Max

.1

208/230V

460V

Wet Bulb Temperature (

°

F) of Air on

Evaporator Coil, Min. / Max.

3

187 / 253

414 / 504

57 / 72

3

Dry Bulb Temperature (

Condenser Coil, Min.

°

F) of Air on

/ Max.

45 / 120

1

2

3

Rated in accordance with ARI Standard 110, utilization range “A”.

A low ambient accessory is available for operation down to 0

°

F

“T1" transformer primary tap must be moved from the 230 volt connection to the 208 volt connection for low voltage applications of 208 volt and below.

TABLE 2 - UNITS WEIGHTS

UNIT

SIZE

SHIPPING

WEIGHT

(lbs.)

OPERAT-

ING

WEIGHT

(lbs.)

“A”

CORNER WEIGHTS

(location, lbs.)

“B” “C” “D”

024 356 351 97 93 81 84

Use the following guidelines to select a suitable location for these units.

030

036

353

388

348

383

96

106

93

102

81

89

84

92

042

048

440

485

435

480

120

132

115

127

101

111

104

115

1. Unit is designed for outdoor installation only.

2. Condenser must have an unlimited supply of air. Where a choice of location is possible, position unit on either north or east side of building.

3. For ground level installation, a level pad or slab should be used. The thickness and size of the pad or slab used should meet local codes and unit weight. Do not tie the slab to the building foundation.

4. For roof top installation, be sure the structure can support the weight of the unit plus any field installed components.

Unit must be installed on a level roof curb or appropriate an-

FRONT

OF

UNIT

49

1

8

“A”

26

“D”

“B”

FIG. 1 - CENTER OF GRAVITY

CENTER OF GRAVITY

“C”

47

14

2 Unitary Products Group

035-19392-000-A-0303

CLEARANCES

All units require certain clearances for proper operation and service. Refer to Figures 3 & 4 for the clearances required for construction, servicing and proper unit operation.

WARNING: Do not permit overhanging structures or shrubs to obstruct the condenser air discharge outlet.

DUCT WORK

These units are adaptable to downflow use as well as rear supply and return air duct openings. To convert to downflow, use the following steps:

1. Remove the duct covers found in the bottom return and supply air duct openings. There are four (4) screws securing each duct cover (save these screws to use later).

2. Install the duct covers, removed in step one, to the rear supply and return air duct openings. Secure with the four (4) screws used in step one.

3. Seal duct covers with silicone caulk.

Downflow units must have an “L”-shaped supply duct without any outlets or registers located below the outlet of the unit.

Duct work should be designed and sized according to the methods of the Air Conditioning Contractors of America

(ACCA), as set forth in their Manual D.

A closed return duct system shall be used. This shall not preclude use of economizers or ventilation air intake. Flexible joints may be used in the supply and return duct work to minimize the transmission of noise.

CAUTION: When fastening duct work to the side duct flanges on the unit, insert the screws through the duct flanges only.

DO NOT insert the screws through the casing. Outdoor duct work must be insulated and waterproofed.

NOTE: Be sure to note supply and return openings.

Refer to Figure 4 for information concerning rear and bottom supply and return air duct openings.

FILTERS

Single phase units are shipped without a filter and is the responsibility of the installer to secure a filter in the return air ductwork

or install a Filter/Frame Kit (1FF0114).

A filter rack and a high velocity filters are standard on three phase units.

Filters must always be used and must be kept clean. When filters become dirt laden, insufficient air is delivered by the blower, decreasing your unit's efficiency and increasing operating costs and wear-and-tear on the unit and controls.

Filters should be checked monthly especially since this unit is used for both heating and cooling.

CONDENSATE DRAIN

A condensate trap is required to be installed in the condensate drain. The plumbing must conform to local codes. Use a sealing compound on male pipe threads. Install the condensate drain line (

3

4

" NPTF) to spill into an open drain.

SERVICE ACCESS

Access to all serviceable components is provided by the following removable panels:

Blower service access

Electrical/Filter access

Compressor service access

Refer to Figures 3 & 4 for location of these access panels and minimum clearances.

THERMOSTAT

The room thermostat should be located on an inside wall approximately 56" above the floor where it will not be subject to drafts, sun exposure or heat from electrical fixtures or appliances. Follow manufacturer's instructions enclosed with the thermostat for general installation procedure. Six color coded insulated wires (minimum #18 AWG) should be used to connect thermostat to unit. See Figure 2.

POWER AND CONTROL WIRING

Field wiring to the unit must conform to provisions of the current

N.E.C. ANSI/NFPA No. 70 or C.E.C. and/or local ordinances.

The unit must be electrically grounded in accordance with local codes or, in their absence, with the N.E.C./C.E.C. Voltage tolerances which must be maintained at the compressor terminals during starting and running conditions are indicated on the unit Rating Plate and Table 3.

The wiring entering the cabinet must be provided with mechanical strain relief.

A fused disconnect switch should be field provided for the unit. If any of the wire supplied with the unit must be replaced, replacement wire must be of the type shown on the wiring diagram.

Electrical line must be sized properly to carry the load. Each unit must be wired with a separate branch circuit fed directly from the meter panel and properly fused.

Refer to Figure 2 for typical field wiring and to the appropriate unit wiring diagram for control circuit and power wiring information.

COMPRESSORS

Units are shipped with compressor mountings factory-adjusted and ready for operation.

CAUTION: Do Not loosen compressor mounting bolts.

Unitary Products Group 3

035-19392-000-A-0303

CONTROL WIRING

THERMOSTAT

** = Minimum wire size of 18 AWG wire should be used for all field installed 24 volt wire.

**

UNIT TERMINAL STRIP

*

NOTE:

HEAT ANTICIPATOR

SHOULD BE SET AT 0.25

AMPS FOR ALL MODELS.

24 VOLT TRANSFORMER

PROGRAMMABLE

THERMOSTAT ONLY

W 2

W 1

* = Only required on units with supplemental electric heat.

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

POWER WIRING

REFER TO ELECTRICAL DATA

TABLES TO SIZE THE DISCON-

NECT SWITCH, WIRING &

OVERCURRENT PROTECTION.

REFER TO ELECTRICAL DATA

TABLES TO SIZE THE DISCON-

NECT SWITCH, WIRING &

OVERCURRENT PROTECTION.

FIG. 2 - TYPICAL FIELD WIRING DIAGRAM

TABLE 3 -

PHYSICAL DATA

MODELS

INDOOR

BLOWER

INDOOR

COIL

OUTDOOR

FAN

OUTDOOR

COIL

CHARGE

FILTER

COMPRESSOR

CENTRIFUGAL BLOWER (Dia. x Wd. in.)

FAN MOTOR HP (ECM)

ROWS DEEP

FINS PER INCH

FACE AREA (Sq. Ft.)

PROPELLER DIA. (in.)

FAN MOTOR HP

NOM. CFM TOTAL

ROWS DEEP

FINS PER INCH

FACE AREA (Sq. Ft.)

REFRIGERANT 22 (lbs./oz.)

FACE AREA (Sq. Ft. / Qty. / Size)

HERMETIC Type, (Qty. = 1)

Reciprocating

024

10 X 8

1

2

2

15

4.38

22

1

4

1.800

1

20

11.7

5 / 5

030

10 X 8

1

2

3

13

4.38

22

1

4

1,800

1

20

11.7

5 / 15

Scroll

BHP

036

11 x 10

3

4

3

15

4.38

22

1

4

2,400

2

20

11.7

8 / 4

4.28 / 2 / 14" x 22"

Scroll

042

11 x 10

3

4

3

16

5.63

22

1

4

2,400

2

20

16.4

9 / 14

Scroll

048

11 x 10

3

4

3

16

5.63

22

1

4

3,000

2

20

16.4

12 / 0

Scroll

4 Unitary Products Group

035-19392-000-A-0303

TABLE 4 -

ELECTRICAL DATA (BASIC UNIT)

MODEL

BHP

024

030

POWER

SUPPLY

208/230-1-60

VOLTAGE

LIMITATIONS

MIN.

187

208/230-1-60 187

208/230-3-60 187

460-3-60 414

208/230-1-60 187

MAX.

253

253

253

504

253

1

COMPRESSOR OUTDOOR

FAN

RLA

9.3

15.0

10.0

5.0

17.2

LRA

57.0

72.5

63.0

31.0

94.0

MOTOR,

FLA

1.1

1.1

1.1

0.6

1.1

SUPPLY

AIR

BLOWER

MOTOR,

FLA

5.0

5.0

5.0

5.0

7.3

036

042

208/230-3-60 187

460-3-60 414

208/230-1-60 187

208/230-3-60 187

253

504

253

253

11.4

5.7

78.0

40.0

20.0

104.0

13.9

88.0

1.1

0.6

1.1

1.1

7.3

7.3

7.3

7.3

460-3-60 414

208/230-1-60 187

208/230-3-60 187

504

253

253

6.4

44.0

23.4

126.0

13.0

93.0

0.6

1.5

1.5

7.3

7.3

7.3

048

460-3-60 414 504 6.4

46.5

0.8

7.3

1 = Rated in accordance with ARI Standard 110, utilization range “A”. 2 = Dual element, time delay type.

MINIMUM

CIRCUIT

AMPACITY

MAX.

FUSE

SIZE,

AMPS

2

17.7

25

MAX.

HACR

BREAKER

SIZE,

AMPS

25

24.9

18.6

11.9

29.9

22.7

15.4

33.4

25.8

35

25

15

45

30

20

50

35

16.1

38.1

25.1

16.3

20

60

35

20

30

20

50

35

35

25

15

45

20

60

35

20

UNIT

POWER

FACTOR

TRANSFORMER

SIZE (VA)

0.96

0.96

0.96

0.96

0.96

0.96

0.96

0.96

0.96

0.96

0.96

0.96

0.96

75

75

40

75

75

40

75

75

40

40

75

75

40

ELECTRIC HEAT

CORRECTION

FACTORS

NOMINAL VOLTAGE

240

480

VOLTAGE

208

230

460

KW CAP. MULTIPLIER

.75

.92

.92

Unitary Products Group 5

035-19392-000-A-0303

TABLE 5 - ELECTRICAL DATA (13 SEER HEAT PUMP / ELECTRIC HEAT)

COMPRESSOR ELECTRIC HEAT ACCESSORY

POWER

SUPPLY

RLA LRA

COND.

FAN

MOTOR

FLA

SUPPLY

AIR

BLOWER

MOTOR,

FLA

MODEL NO.

KW

TOTAL

AMPS

MINIMUM

CIRCUIT

AMPACITY

MAX.

FUSE

SIZE,



AMPS

MAX.

HACR

‚

BREAKER

SIZE

024 208/230-1-60 9.3

030 208/230-1-60 15.0

036 208/230-1-60 17.2

042 208/230-1-60 20.0

048 208/230-1-60 23.4

030 208/230-3-60 10.0

036 208/230-3-60 11.4

042 208/230-3-60 13.9

048 208/230-3-60 13.0

030 460-3-60

036 460-3-60

042 460-3-60

048 460-3-60

5.0

5.7

6.4

6.4

57.0

72.5

94.0

104.0

126.0

63.0

78.0

88.0

93.0

31.0

40.0

44.0

46.5

1.1

1.1

1.1

1.1

1.5

1.1

1.1

1.1

1.5

0.6

0.6

0.6

0.8

5.0

5.0

7.3

7.3

7.3

5.0

7.3

7.3

7.3

5.0

7.3

7.3

7.3

2NH04500506

2NH04500706

2NH04501006

2NH04500506

2NH04500706

2NH04501006

2NH04501506

2NH04500506

2NH04500706

2NH04501006

2NH04501506

2NP04501006

2NP04501506

2NP04501006

2NP04501506

2NP04502006

2NP04502506

2NH04501025

2NH04501525

2NH04501025

2NH04501525

2NP04501025

2NP04501525

2NP04501025

2NP04501525

2NP04502025

2NP04502525

2NH04501046

2NH04501546

2NH04501046

2NH04501546

2NP04501046

2NP04501546

2NP04501046

2NP04501546

2NP04502046

2NP04502546

3.8 / 5.0 *

5.6 / 7.5 *

7.5 / 10.0 *

3.8 / 5.0 *

5.6 / 7.5 *

7.5 / 10.0 *

11.3 / 15.0 *

3.8 / 5.0 *

5.6 / 7.5 *

7.5 / 10.0 *

11.3 / 15.0 *

7.5 / 10.0 *

11.3 / 15.0 *

7.5 / 10.0 *

11.3 / 15.0 *

15.0 / 20.0 *

18.8 / 25.0 *

7.5 / 10.0 *

11.3 / 15.0 *

7.5 / 10.0 *

11.3 / 15.0 *

7.5 / 10.0 *

11.3 / 15.0 *

7.5 / 10.0 *

11.3 / 15.0 *

15.0 / 20.0 *

18.8 / 25.0 *

10.0**

15.0**

10.0**

15.0**

10.0**

15.0**

10.0**

15.0**

20.0**

25.0**

18.1 / 20.8

27.1 / 31.3

36.1 / 41.7

18.1 / 20.8

27.3 / 31.3

36.1 / 41.7

54.2 / 62.5

18.1 / 20.8

27.1 / 31.3

36.1 / 41.7

54.2 / 62.5

36.1 / 41.7

54.2 / 62.5

20.8 / 24.1

31.3 / 36.1

20.8 / 24.1

31.3 / 36.1

20.8 / 24.1

31.3 / 36.1

20.8 / 24.1

31.3 / 36.1

41.7 / 48.1

52.1 / 60.1

12.0

18.0

12.0

18.0

12.0

18.0

12.0

18.0

24.1

30.1

40.3 / 43.8

51.6 / 56.8

62.9 / 69.8

47.4 / 50.9

58.7 / 63.9

70.0 / 76.9

92.6 / 103.0

52.5 / 55.9

63.8 / 69.0

75.0 / 82.0

97.6 / 108.0

78.5 / 85.5

101.1 / 111.5

36.1 / 41.7

54.2 / 62.5

72.2 / 83.3

90.3 / 104.2

83.2 / 90.1

105.8 / 116.2

128.3 / 142.2

150.9 / 168.3

44.7 / 48.7

57.7 / 63.7

48.7 / 52.7

61.7 / 67.8

51.8 / 55.8

64.9 / 70.9

51.1 / 55.1

64.1 / 70.2

77.2 / 85.2

90.2 / 100.2

27.5

35.4

30.7

38.6

31.6

29.4

31.8

39.6

47.5

55.3

50 / 60

70 / 70

60 / 60

70 / 80

80 / 90

100 / 100

30

40

35

40

35

40

35

40

50

60

45 / 45

60 / 60

70 / 70

50 / 60

60 / 70

70 / 80

100 / 110

60 / 60

70 / 70

80 / 90

100 / 110

80 / 90

100 / 125

90 / 90

110 / 125

150 / 150

175 / 175

45 / 50

60 / 70

60 / 60

70 / 80

50 / 60

70 / 70

60 / 60

70 / 80

80 / 90

100 / 100

30

40

35

40

35

40

35

40

50

60

45 / 45

60 / 60

70 / 70

50 / 60

60 / 70

70 / 80

100 / 110

60 / 60

70 / 70

80 / 90

100 / 110

80 / 90

100 / 125

90 / 90

110 / 125

150 / 150

175 / 175

45 / 50

60 / 70

60 / 60

70 / 80

*

= KW listed is for 240 volts, use table on previous page for 208 or 230 volts.

**

= KW listed is for 480 volts, use table on previous page for 460 volts.



‚

= Dual element, time delay type.

= Standard circuit breakers may be used in Canada and on applications over 60 amps where the heaters are separately fused.

TABLE 6 - SIDE AND BOTTOM SUPPLY AIR BLOWER PERFORMANCE (208/230/460 VOLT



)

MODEL NO.

BHP

B1HP024

B1HP024

B1HP030

B1HP030

B1HP036

B1HP036

B1HP042

B1HP042

B1HP042

B1HP042

B1HP048

B1HP048

B1HP048

MOTOR SPEED

SETTING

Cooling TB2-A, Heating TB2-A, Electric Heat

Cooling TB2-B, Heating TB2-B

Cooling TB2-A, Heating TB2-A, Electric Heat

Cooling TB2-B, Heating TB2-B

Cooling TB2-A, Heating TB2-A

Cooling TB2-B, Heating TB2-B, Electric Heat

Electric Heat

Cooling TB2-A

Cooling TB2-B

Heating TB2-A, TB2-B

Heating TB2-A

Cooling TB2-A

Cooling TB2-B, Heating TB2-B, Electric Heat

UNIT

AIRFLOW

800 CFM

900 CFM

1000 CFM

1125 CFM

1050 CFM

1200 CFM

1225 CFM

1300 CFM

1400 CFM

1500 CFM

1400 CFM

1500 CFM

1600 CFM

338

393

500

377

455

530

356

209

273

306

EXTERNAL STATIC PRESSURE - IWG

0.15

0.30

0.50

0.70

0.90

91

118

280

125

148

321

WATTS

161

199

389

206

243

449

240

285

500

413

261

324

341

490

319

392

412

557

372

480

494

620

438

541

577

395

466

554

427

516

608

470

544

665

504

601

707

551

642

752

597

703

800

640

734

835

683

788

873



All units are factory set to TB2-A.

Above data includes allowances for a dry indoor coil and no filters. For additional pressure drops, refer to the “Additional Static Pressure Resistance” table.

6 Unitary Products Group

035-19392-000-A-0303

TABLE 7 -

ADDITIONAL STATIC PRESSURE RESISTANCE

DESCRIPTION

Wet Indoor coil

RESISTANCE, IWG

CFM

500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000

0.01

0.01

0.01

0.02

0.01

0.02

0.03

0.04

0.04

0.03

0.04

0.04

0.05

0.05

0.06

0.07

Economizer

Filter/Frame Kit

0.00

0.01

0.00

0.02

0.00

0.02

0.01

0.02

0.01

0.02

0.01

0.02

0.01

0.03

0.02

0.03

0.03

0.03

0.04

0.03

0.05

0.04

0.06

0.05

0.07

0.05

0.07

0.06

0.08

0.06

0.08

0.07

Electric Heat 0.02

0.03

0.03

0.03

0.04

0.04

0.05

0.06

0.07

0.08

0.09

0.10

0.01

0.11

0.11

0.12

NOTE: 1. Deduct these resistance values from the available external static pressure shown in the respective Blower Performance Table.

2. The pressure thru the economizer is greater for 100% outdoor air then for 100% return air. If the resistance of the return air duct system is less then 0.25 IWG, the unit will deliver less CFM during full economizer operation.

Front

CLEARANCES

(Minimum)

12"

Back 0"

Left Side (Filter Access) 24"

Right Side

Below Unit



24"

0"

Above Unit

‚

36" (For Condenser

Air Discharge)



Units may be installed on combustible floors made from wood or class A,

B or C roof covering material.

‚

Units must be installed outdoors. Overhanging structures or shrubs should not obstruct outdoor air discharge outlet.

NOTE: FOR UNITS APPLIED WITH A ROOF

CURB, THE MINIMUM CLEARANCE MAY BE

REDUCED FROM 1 INCH TO 1/2 INCH BE-

TWEEN COMBUSTIBLE ROOF CURB MA-

TERIAL AND THE SUPPLY DUCT.

FLEXIBLE DUCT

COLLAR

3'

FIG. 3 - CLEARANCES

MINIMUM CLEARANCE OF 1"

ALL SIDES FOR THE FIRST 3'

OF DUCT FOR 20 & 25 kW.

ZERO INCHES THEREAFTER,

FOR ALL OTHER HEATERS,

ZERO INCH CLEARANCE ALL

SIDES FOR ENTIRE LENGTH

OF DUCT.

Unitary Products Group 7

035-19392-000-A-0303

HIGH VOLTAGE CONN.

7

8

" DIA. KNOCKOUT

HIGH VOLTAGE CONN.

1

31

32

" DIA. KNOCKOUT

LOW VOLTAGE CONN.

7

8

“ DIA. KNOCKOUT

SIDE SUPPLY

AIR OPENING

SIDE RETURN

AIR OPENING

LOW VOLTAGE CONN.

7

8

“ DIA. KNOCKOUT

49

1

8

(OVERALL)

2

1

2

17

14

22

14

28

14

FRONT

COMPRESSOR

SERVICE ACCESS

COMPARTMENT PANEL

2 3

8

“A”

(OVERALL)

UNIT SIZE

DIMENSION

“A”

024 - 036 33-1/2

042 - 048 41-1/2

47

14

(OVERALL)

REFRIGERANT

CONNECTIONS

ELECTRICAL/FILTER

SERVICE ACCESS

COMPARTMENT PANEL

HIGH VOLTAGE CONN.

1

23

64

" DIA. KNOCKOUT

28

14

22

14

17

14

3

34

1 1

2

4 1

2

UNIT CONDENSATE

CONNECTION 34 “ NPTI

(TRAP REQUIRED)

FRONT

HIGH VOLTAGE

CONN.

1

31

32

“ x

7

8

" DIA.

KNOCKOUT

All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request.

FIG. 4 - DIMENSIONS

8

43

1

2

40

1

2 26

34

CONDENSATE

DRAIN 34 “ NPTI

6

22

1

2

BOTTOM SUPPLY

AIR OPENING

1 3

4

OUTDOOR

COIL

15

28

9

16

15

14

1

2

SIDE SUPPLY

AIR OPENING

28

3

8

14

1

2

3

3

8

BACK

SIDE RETURN

AIR OPENING

2 3

8

3

1

2

1 3

4

14

1

2

1 3

4

15

4

3

1

2

BOTTOM RETURN

AIR OPENING

Unitary Products Group

035-19392-000-A-0303

Anti-short Cycle Timer

SEQUENCE OF OPERATION

Defrost Operation

This unit has an anti-short cycle timer built in to the defrost control. This timer will not permit the compressor to start within five minutes after the completion of the last cycle or power interruption. To bypass the anti-short cycle feature, short the “TEST” pins together for 2 seconds.

The following sequences of operation are based on using a standard single-stage heat pump thermostat.

The demand defrost control implements a temperature differential (”delta-T”) demand defrost algorithm. The heat pump is allowed to operate in the heating mode until the combination of outdoor ambient and outdoor coil temperatures indicate that defrosting is necessary. When coil temperature is below the initiate point for the ambient temperature continuously for 4-1/2 minutes, the heat pump is put into a defrost cycle. This 4-1/2 minute timer eliminates unnecessary defrost cycles caused by refrigeration surges such as those that occur at the start of a heating cycle.

COOLING OPERATION

1. When the fan switch on the thermostat is in the “ON” position, the 24 volts at “G” will bring on the indoor blower motor at the cooling airflow. When the fan switch on the thermostat is in the “AUTO” position, the blower operates only when there is a call for cooling by the thermostat.

2. On a call for cooling, the thermostat sends 24 volts to “Y” and “O” on the fan control and defrost control boards. The reversing valve solenoid is energized, and after the antishort cycle period is complete contactor coil M1 is energized. Power is supplied to the compressor and outdoor fan motor, and the reversing valve switched to the cooling position. When the fan switch on the thermostat is in the “AUTO” position the indoor blower motor is energized at the cooling airflow.

3. When the demand for cooling has been satisfied, the 24 volt “Y” signal is removed, and the M1 contactor is deenergized. When the fan switch on the thermostat is in the

“ON” position, the indoor blower motor continues to run. If the fan switch is in the “AUTO” position. the indoor motor ramps down over a 30-second period.

A timed inhibit feature prevents the system from responding to a call for defrost less than 20 minutes after the initiation of the previous defrost. After the 20 minute inhibit time has expired, temperature conditions must call for defrost continuously for 4-

1/2 minutes before a defrost cycle is initiated. A temperature inhibit feature prohibits defrost if the coil temperature is above

40

°

F.

A forced-defrost feature puts the system into a defrost period every 6 hours and 4 minutes to recirculate lubricants, unless the coil temperature is above 40

°

F. All defrost timing occurs only while the compressor is on.

During the defrost mode, the defrost control will provide a 24 volt signal from terminal “W1/66” to the fan control terminal

“W1”. This signal will energize electric heat stage 1, if the unit is so equipped.

For trouble shooting purposes, the defrost cycle can be manually initiated by shorting the “TEST” pins together for 5 seconds. Defrost will terminate normally during the “TEST” mode.

HEATING OPERATION

1. When the fan switch on the thermostat is in the “ON” position, the 24 volts at “G” brings on the indoor blower motor at the heating flow. When the fan switch on the thermostat is in the “AUTO” position, the blower operates when there is a call for heating by the thermostat.

2. On a call for heating, the thermostat sends 24 volts to “Y” on the fan control board. After the anti-short cycle period is complete, the 24 volt signal energizes contactor coil M1 and power is supplied to the compressor and outdoor fan motor. The reversing valve remains in the heating position.

When the fan switch on the thermostat is in the “AUTO” position, the indoor blower is energized at the heating airflow.

3. For units equipped with supplementary electric heat, when the heat pump cannot meet the demand, the thermostat

“W” sends 24 volts to “W2” on the fan control board. This signal also is sent through the defrost control terminals “W” and “W6” and back to the fan control “W1”. The 24 volt signal energizes all stages of electric heat.

4 When the heating demand is satisfied, the electric heat is de-energized when the 24 volt “W” signal is removed, and the M1 contactor is de-energized when the 24 volt “Y” signal is removed. When the fan switch on the thermostat is in the “ON” position, the indoor blower continues to run. When the fan switch is in the “AUTO” position, the indoor blower motor ramps down over a 15-second period.

Heat Pump Safety Switch Operation

If the unit is equipped with the field installed upgrade safety package, the refrigeration system will be protected against high or low refrigerant pressure and low indoor coil temperature. If any of these three safety switches opens, the unit will be shut off for the 5 minute anti-short cycle time. Once this has expired, a six hour elapsed run timer begins. If a second opening of a safety switch occurs during this six hour period, the compressor will be locked out.

Resetting the lockout function is accomplished by;

1. Removing power from the control's thermostat 1st stage

(Y) input for a time not to exceed 5 seconds (ON-OFF-ON).

2. Removing power from “R” for more than 2 seconds.

3. Shorting the “TEST” pins together for more than 2 seconds.

Electric Heat Limit Switch Operation

The limit switch responds to over temperature conditions in the air duct. Opening of the device results in dropping power to the relays. The control logic will also respond by turning off the relays. After four limit cycle trips the unit goes into a 1 hour soft lockout period. If during this period the control “sees” another limit cycle, the unit will go into a hard lockout condition. Once in a hard lockout state, the fan is locked on and the heaters are disabled. Only a power cycle will clear this state.

Please refer to Tables 8 and 9 for more information.

SECURE OWNER'S APPROVAL

: When the system is

functioning 1/6 properly, secure the owner's approval. Show him the location of all disconnect switches and the thermostat.

Teach him how to start and stop the unit and how to adjust temperature settings within the limitations of the system.

During the soft lockout period, the fan responds to thermostat input but the heaters are enabled. This is to sense a failed heater relay. The limit cycle count is reset at the start of a heat request. If the limit remains open for period of 80 seconds or more, the control is immediately put into a hard lockout condition. Only a power cycle will clear this state.

Unitary Products Group 9

035-19392-000-A-0303

TABLE 8 - THERMOSTAT SIGNALS (SINGLE PHASE UNITS)

SIGNAL

“G”

“G” & “Y” & “O”

“G” & “Y”

“G” & “W”

“G” & “Y” & “W”

“W”

STATE

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

BOARD FUNCTION

FAN INSTANT ON

FAN INSTANT OFF

FAN INSTANT ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

REVERSING VALVE ENERGIZED

SYSTEM OPERATES IN COOLING

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

FAN 60 SEC. DELAY OFF

FAN INSTANT ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

SYSTEM OPERATES IN HEATING

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

FAN 60 SEC. DELAY OFF

FAN INSTANT ON

HEATER BANK 1 ELEC. HEAT INSTANT ON

HEATER BANK 2 ELEC. HEAT 10 SEC. DELAY ON

HEATER BANK 3 ELEC. HEAT 20 SEC. DELAY ON

HEATER BANK 3 ELEC. HEAT INSTANT OFF

HEATER BANK 2 ELEC. HEAT

1

2

SEC. DELAY OFF

HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF

FAN 10 SEC. DELAY OFF

FAN INSTANT ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON

SYSTEM OPERATES IN HEATING

HEATER BANK 1 ELEC. HEAT INSTANT ON

HEATER BANK 2 ELEC. HEAT 10 SEC. DELAY ON

HEATER BANK 3 ELEC. HEAT 20 SEC. DELAY ON

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

HEATER BANK 3 ELEC. HEAT INSTANT OFF

HEATER BANK 2 ELEC. HEAT

1

2

SEC. DELAY OFF

HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF

FAN 60 SEC. DELAY OFF

FAN INSTANT ON

HEATER BANK 1 ELEC. HEAT INSTANT ON

HEATER BANK 2 ELEC. HEAT 10 SEC. DELAY ON

HEATER BANK 3 ELEC. HEAT 20 SEC. DELAY ON

HEATER BANK 3 ELEC. HEAT INSTANT OFF

HEATER BANK 2 ELEC. HEAT

1

2

SEC. DELAY OFF

HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF

FAN 10 SEC. DELAY OFF

10 Unitary Products Group

035-19392-000-A-0303

TABLE 9 - THERMOSTAT SIGNALS (THREE PHASE UNITS)

SIGNAL

“G”

“G” & “Y” & “O”

“G” & “Y”

“G” & “W”

“G” & “Y” & “W”

“W”

STATE

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

BOARD FUNCTION

FAN INSTANT ON

FAN INSTANT OFF

FAN INSTANT ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

REVERSING VALVE ENERGIZED

SYSTEM OPERATES IN COOLING

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

FAN 60 SEC. DELAY OFF

FAN INSTANT ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

SYSTEM OPERATES IN HEATING

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

FAN 60 SEC. DELAY OFF

FAN INSTANT ON

HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON

HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON

HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF

HEATER BANK 1, 2 & 3 ELEC. HEAT

1

2

SEC. DELAY OFF

FAN 10 SEC. DELAY OFF

FAN INSTANT ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON

SYSTEM OPERATES IN HEATING

HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON

HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF

HEATER BANK 1, 2 & 3 ELEC. HEAT

1

2

SEC. DELAY OFF

FAN 60 SEC. DELAY OFF

FAN INSTANT ON

HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON

HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON

HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF

HEATER BANK 1, 2 & 3 ELEC. HEAT

1

2

SEC. DELAY OFF

FAN 10 SEC. DELAY OFF

Unitary Products Group 11

035-19392-000-A-0303

MAINTENANCE

NORMAL MAINTENANCE

WARNING: Prior to any of the following maintenance procedures, shut off all power to the unit, to avoid personal injury.

Periodic maintenance consists of changing or cleaning filters and general cleaning of the outdoor coil.

OUTDOOR COIL - Dirt should not be allowed to accumulate on the outdoor coil surface or other parts in the air circuit. Cleaning should be as often as necessary to keep the coil clean. Use a brush, vacuum cleaner attachment, or other suitable means. If water is used to clean the coil, be sure that the power to the unit is shut off prior to cleaning.

FILTERS - Inspect once a month. Replace Disposable or clean

Permanent Type as necessary. DO NOT replace Permanent

Type with Disposable.

CAUTION: Exercise care when cleaning the coil so that the coil fins are not damaged.

MOTORS - Indoor and outdoor fan motors are permanently lubricated and require no maintenance.

Do not permit the hot condenser air discharge to be obstructed by overhanging structures or shrubs.

TROUBLESHOOTING

WARNING: Troubleshooting of components necessarily requires opening the electrical control box with the power connected to the unit. Use extreme care when working with live circuit!

Check the unit nameplate for the correct range before making any connections with line terminals.

CAUTION: The wire number or color and terminal designations referred to may vary. Check the wiring label inside the control box access panel for the correct wiring.

CAUTION: If the variable speed motor found in the B1HP models operates erratically, check the fan control board for the presence of a break-off tab. Remove tab if present.

12 Unitary Products Group

035-19392-000-A-0303

FIG. 5 - TYPICAL WIRING DIAGRAM BHP MODELS- 208/230-1-60 POWER SUPPLY

Unitary Products Group 13

035-19392-000-A-0303

FIG. 6 - TYPICAL WIRING DIAGRAM BHP - 208/230-3-60 POWER SUPPLY

14 Unitary Products Group

035-19392-000-A-0303

FIG. 7 - TYPICAL WIRING DIAGRAM BHP - 460-3-60 POWER SUPPLY

Unitary Products Group 15

Unitary Products Group

5005 York Drive, Norman, Oklahoma 73069

Subject to change without notice. Printed in U.S.A.

Copyright

 by York International Corporation 2003. All Rights Reserved.

Supersedes: Nothing

035-19392-000-A-0303

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