Y-IO, Champion Series Single Package Heat Pumps

®
INSTALLATION INSTRUCTION
CHAMPION® SERIES
SINGLE PACKAGE HEAT PUMPS
035-19392-000-A-0303
Supersedes: Nothing
MODELS B1HP024 THRU 048
2 THRU 4 TON
(13 SEER)
GENERAL
REFERENCE
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.
Additional information on the design, installation, operation
and service of this equipment is available in the following reference forms:
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
• 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:
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.
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, ELECTRICAL, 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
PRODUCT NOMENCLATURE
B
1
H P
0
2
4
A
0
6
PRODUCT CATEGORY
VOLTAGE CODE
B = Single Package Heat Pumps
(Air Cooled)
06 = 208/230-1-60
25 = 208/230-3-60
46 = 460-3-60
PRODUCT GENERATION
1 = NEW or Current Design
NOMINAL COOLING
CAPACITY (MBH)
FACTORY
INSTALLED ELECTRIC HEAT
PRODUCT IDENTIFIER
HP = Heat Pump (13 SEER)
024 = 24,000 BTUH 042 = 42,000 BTUH
030 = 30,000 BTUH 048 = 48,000 BTUH
036 = 36,000 BTUH
A = No Electric Heat Installed
INSTALLATION
LIMITATIONS
These units must be installed in accordance with the following
national and local safety codes.
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.
Refer to Table 1 for unit application data and to Table 5 for electric heat application data.
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.
LOCATION
gle iron frame providing adequate support under the
compressor/condenser section.
5. Maintain level tolerance of unit to 1/8" maximum.
RIGGING OR HANDLING
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.
BEFORE LIFTING A UNIT, MAKE SURE THAT ITS WEIGHT
IS DISTRIBUTED EQUALLY ON THE CABLES SO THAT IT
WILL LIFT EVENLY.
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
208/230V3
460V
Wet Bulb Temperature (°F) of Air on
Evaporator Coil,
Min. / Max.
Dry Bulb Temperature (°F) of Air on
Condenser Coil, Min.2 / Max.
Voltage Variation
Min. / Max.1
187 / 2533
414 / 504
57 / 72
Refer to Table 2 for unit weights and to Figure 1 for approximate
center of gravity.
TABLE 2 - UNITS WEIGHTS
45 / 120
CORNER WEIGHTS
(location, lbs.)
SHIPPING
WEIGHT
(lbs.)
OPERATING
WEIGHT
(lbs.)
“A”
“B”
“C”
“D”
024
356
351
97
93
81
84
030
353
348
96
93
81
84
Use the following guidelines to select a suitable location for
these units.
036
388
383
106
102
89
92
042
440
435
120
115
101
104
1. Unit is designed for outdoor installation only.
048
485
480
132
127
111
115
1
Rated in accordance with ARI Standard 110, utilization range “A”.
2
A low ambient accessory is available for operation down to 0°F
3
“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.
UNIT
SIZE
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 an2
“D”
CENTER OF GRAVITY
“A”
FRONT
OF
UNIT
“C”
“B”
49 18
26
47 14
FIG. 1 - CENTER OF GRAVITY
Unitary Products Group
035-19392-000-A-0303
CLEARANCES
CONDENSATE DRAIN
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.
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.
WARNING: Do not permit overhanging structures or shrubs to
obstruct the condenser air discharge outlet.
SERVICE ACCESS
DUCT WORK
Access to all serviceable components is provided by the following removable panels:
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.
• 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.
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.
COMPRESSORS
Filters should be checked monthly especially since this unit is
used for both heating and cooling.
CAUTION: Do Not loosen compressor mounting bolts.
Unitary Products Group
Units are shipped with compressor mountings factory-adjusted
and ready for operation.
3
035-19392-000-A-0303
CONTROL WIRING
UNIT TERMINAL STRIP
THERMOSTAT
** = Minimum wire size of 18 AWG
wire should be used for all field
installed 24 volt wire.
**
R
R
G
G
Y
PROGRAMMABLE
THERMOSTAT ONLY
Y
*
W
24 VOLT TRANSFORMER
W 2
W 1
O
* = Only required on units with
supplemental electric heat.
NOTE:
HEAT ANTICIPATOR
SHOULD BE SET AT 0.25
AMPS FOR ALL MODELS.
O
C
C
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 DISCONNECT SWITCH, WIRING &
OVERCURRENT PROTECTION.
REFER TO ELECTRICAL DATA
TABLES TO SIZE THE DISCONNECT SWITCH, WIRING &
OVERCURRENT PROTECTION.
FIG. 2 - TYPICAL FIELD WIRING DIAGRAM
TABLE 3 - PHYSICAL DATA
MODELS
CENTRIFUGAL BLOWER (Dia. x Wd. in.)
FAN MOTOR HP (ECM)
ROWS DEEP
INDOOR
FINS PER INCH
COIL
FACE AREA (Sq. Ft.)
PROPELLER DIA. (in.)
OUTDOOR
FAN MOTOR HP
FAN
NOM. CFM TOTAL
ROWS DEEP
OUTDOOR
FINS PER INCH
COIL
FACE AREA (Sq. Ft.)
CHARGE
REFRIGERANT 22 (lbs./oz.)
FILTER
FACE AREA (Sq. Ft. / Qty. / Size)
COMPRESSOR
HERMETIC Type, (Qty. = 1)
INDOOR
BLOWER
4
024
10 X 8
030
10 X 8
BHP
036
11 x 10
042
11 x 10
048
11 x 10
3
3
1
2
1
2
3
2
15
4.38
22
3
13
4.38
22
3
15
4.38
22
3
16
5.63
22
3
16
5.63
22
1
4
1
4
1
4
1
4
1
4
1.800
1
20
11.7
5/5
1,800
1
20
11.7
5 / 15
2,400
2
20
16.4
9 / 14
3,000
2
20
16.4
12 / 0
Reciprocating
Scroll
2,400
2
20
11.7
8/4
4.28 / 2 / 14" x 22"
Scroll
Scroll
Scroll
4
4
4
Unitary Products Group
035-19392-000-A-0303
TABLE 4 - ELECTRICAL DATA (BASIC UNIT)
MODEL
BHP
POWER
SUPPLY
024
208/230-1-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
460-3-60
030
036
042
048
VOLTAGE
SUPPLY
MAX.
MAX.
COMPRESSOR OUTDOOR
MINIMUM
UNIT
LIMITATIONS1
AIR
HACR
FUSE
TRANSFORMER
FAN
BLOWER CIRCUIT
BREAKER POWER
SIZE,
SIZE (VA)
MOTOR,
FACTOR
MOTOR, AMPACITY
SIZE,
2
MIN. MAX.
RLA
LRA
AMPS
FLA
FLA
AMPS
187
253
9.3
57.0
1.1
5.0
17.7
25
25
0.96
40
187
253
15.0
72.5
1.1
5.0
24.9
35
35
0.96
40
187
253
10.0
63.0
1.1
5.0
18.6
25
25
0.96
75
414
504
5.0
31.0
0.6
5.0
11.9
15
15
0.96
75
187
253
17.2
94.0
1.1
7.3
29.9
45
45
0.96
40
187
253
11.4
78.0
1.1
7.3
22.7
30
30
0.96
75
414
504
5.7
40.0
0.6
7.3
15.4
20
20
0.96
75
187
253
20.0
104.0
1.1
7.3
33.4
50
50
0.96
40
187
253
13.9
88.0
1.1
7.3
25.8
35
35
0.96
75
414
504
6.4
44.0
0.6
7.3
16.1
20
20
0.96
75
187
253
23.4
126.0
1.5
7.3
38.1
60
60
0.96
40
187
253
13.0
93.0
1.5
7.3
25.1
35
35
0.96
75
414
504
6.4
46.5
0.8
7.3
16.3
20
20
0.96
75
1 = Rated in accordance with ARI Standard 110, utilization range “A”.
2 = Dual element, time delay type.
ELECTRIC HEAT
CORRECTION
FACTORS
Unitary Products Group
NOMINAL VOLTAGE
240
480
VOLTAGE
208
230
460
KW CAP. MULTIPLIER
.75
.92
.92
5
035-19392-000-A-0303
MODEL
BHP
TABLE 5 - ELECTRICAL DATA (13 SEER HEAT PUMP / ELECTRIC HEAT)
COMPRESSOR
POWER
SUPPLY
ELECTRIC HEAT ACCESSORY
SUPPLY
COND.
AIR
FAN
BLOWER
TOTAL
MOTOR
KW
MOTOR, MODEL NO.
AMPS
FLA
FLA
RLA
LRA
024 208/230-1-60
9.3
57.0
1.1
5.0
030 208/230-1-60
15.0
72.5
1.1
5.0
036 208/230-1-60
17.2
94.0
1.1
7.3
042 208/230-1-60
20.0
104.0
1.1
7.3
048 208/230-1-60
23.4
126.0
1.5
7.3
030 208/230-3-60
10.0
63.0
1.1
5.0
036 208/230-3-60
11.4
78.0
1.1
7.3
042 208/230-3-60
13.9
88.0
1.1
7.3
048 208/230-3-60
13.0
93.0
1.5
7.3
030
460-3-60
5.0
31.0
0.6
5.0
036
460-3-60
5.7
40.0
0.6
7.3
042
460-3-60
6.4
44.0
0.6
7.3
048
460-3-60
6.4
46.5
0.8
7.3
 = Dual element, time delay type.
‚= Standard circuit breakers may be used in Canada and on applications
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
over 60 amps where the heaters are separately fused.
MINIMUM
CIRCUIT
AMPACITY
3.8 / 5.0 *
18.1 / 20.8 40.3 / 43.8
5.6 / 7.5 *
27.1 / 31.3 51.6 / 56.8
7.5 / 10.0 * 36.1 / 41.7 62.9 / 69.8
18.1 / 20.8 47.4 / 50.9
3.8 / 5.0 *
27.3 / 31.3 58.7 / 63.9
5.6 / 7.5 *
7.5 / 10.0 * 36.1 / 41.7 70.0 / 76.9
11.3 / 15.0 * 54.2 / 62.5 92.6 / 103.0
18.1 / 20.8 52.5 / 55.9
3.8 / 5.0 *
27.1 / 31.3 63.8 / 69.0
5.6 / 7.5 *
7.5 / 10.0 * 36.1 / 41.7 75.0 / 82.0
11.3 / 15.0 * 54.2 / 62.5 97.6 / 108.0
7.5 / 10.0 * 36.1 / 41.7 78.5 / 85.5
11.3 / 15.0 * 54.2 / 62.5 101.1 / 111.5
7.5 / 10.0 * 36.1 / 41.7 83.2 / 90.1
11.3 / 15.0 * 54.2 / 62.5 105.8 / 116.2
15.0 / 20.0 * 72.2 / 83.3 128.3 / 142.2
18.8 / 25.0 * 90.3 / 104.2 150.9 / 168.3
7.5 / 10.0 * 20.8 / 24.1 44.7 / 48.7
11.3 / 15.0 * 31.3 / 36.1 57.7 / 63.7
7.5 / 10.0 * 20.8 / 24.1 48.7 / 52.7
11.3 / 15.0 * 31.3 / 36.1 61.7 / 67.8
7.5 / 10.0 * 20.8 / 24.1 51.8 / 55.8
11.3 / 15.0 * 31.3 / 36.1 64.9 / 70.9
7.5 / 10.0 * 20.8 / 24.1 51.1 / 55.1
11.3 / 15.0 * 31.3 / 36.1 64.1 / 70.2
15.0 / 20.0 * 41.7 / 48.1 77.2 / 85.2
18.8 / 25.0 * 52.1 / 60.1 90.2 / 100.2
10.0**
12.0
27.5
15.0**
18.0
35.4
10.0**
12.0
30.7
15.0**
18.0
38.6
10.0**
12.0
31.6
15.0**
18.0
29.4
31.8
12.0
10.0**
39.6
18.0
15.0**
47.5
24.1
20.0**
55.3
30.1
25.0**
MAX.
FUSE
SIZE,
AMPS
MAX.
HACR‚
BREAKER
SIZE
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
50 / 60
70 / 70
60 / 60
70 / 80
80 / 90
100 / 100
30
40
35
40
35
40
35
40
50
60
* = 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.
TABLE 6 - SIDE AND BOTTOM SUPPLY AIR BLOWER PERFORMANCE (208/230/460 VOLT)
EXTERNAL STATIC PRESSURE - IWG
MODEL NO.
MOTOR SPEED
UNIT
BHP
SETTING
AIRFLOW
0.15
0.30
0.50
0.70
0.90
WATTS
B1HP024
Cooling TB2-A, Heating TB2-A, Electric Heat
800 CFM
91
125
161
206
240
B1HP024
Cooling TB2-B, Heating TB2-B
900 CFM
118
148
199
243
285
500
B1HP030
Cooling TB2-A, Heating TB2-A, Electric Heat
1000 CFM
280
321
389
449
B1HP030
Cooling TB2-B, Heating TB2-B
1125 CFM
356
413
490
557
620
B1HP036
Cooling TB2-A, Heating TB2-A
1050 CFM
209
261
319
372
438
B1HP036
Cooling TB2-B, Heating TB2-B, Electric Heat
1200 CFM
273
324
392
480
541
B1HP042
Electric Heat
1225 CFM
306
341
412
494
577
B1HP042
Cooling TB2-A
1300 CFM
338
395
470
551
640
B1HP042
Cooling TB2-B
1400 CFM
393
466
544
642
734
B1HP042
Heating TB2-A, TB2-B
1500 CFM
500
554
665
752
835
B1HP048
Heating TB2-A
1400 CFM
377
427
504
597
683
B1HP048
Cooling TB2-A
1500 CFM
455
516
601
703
788
B1HP048
Cooling TB2-B, Heating TB2-B, Electric Heat
1600 CFM
530
608
707
800
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
RESISTANCE, IWG
DESCRIPTION
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
Wet Indoor coil
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
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.07
0.08
0.08
Filter/Frame Kit
0.01
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.04
0.05
0.05
0.06
0.06
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.
CLEARANCES
(Minimum)
Front
12"
Back
0"
Left Side (Filter Access) 24"
Right Side
24"
Below Unit
0"
36" (For Condenser
Above Unit‚
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.
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.
NOTE: FOR UNITS APPLIED WITH A ROOF
CURB, THE MINIMUM CLEARANCE MAY BE
REDUCED FROM 1 INCH TO 1/2 INCH BETWEEN COMBUSTIBLE ROOF CURB MATERIAL AND THE SUPPLY DUCT.
FLEXIBLE DUCT
COLLAR
3'
FIG. 3 - CLEARANCES
Unitary Products Group
7
035-19392-000-A-0303
HIGH VOLTAGE CONN.
7 " DIA. KNOCKOUT
8
FRONT
COMPRESSOR
SERVICE ACCESS
COMPARTMENT PANEL
HIGH VOLTAGE CONN.
13132" DIA. KNOCKOUT
LOW VOLTAGE CONN.
7 “ DIA. KNOCKOUT
8
“A”
UNIT SIZE
DIMENSION
“A”
024 - 036
33-1/2
042 - 048
41-1/2
(OVERALL)
2 38
SIDE SUPPLY
AIR OPENING
REFRIGERANT
CONNECTIONS
SIDE RETURN
AIR OPENING
ELECTRICAL/FILTER
SERVICE ACCESS
COMPARTMENT PANEL
49
17 14
17 14
28 14
1
8
22 14
22 14
2 12
(OVERALL)
28 14
HIGH VOLTAGE CONN.
12364" DIA. KNOCKOUT
47 14
(OVERALL)
3 34
112
UNIT CONDENSATE
CONNECTION 34“ NPTI
(TRAP REQUIRED)
4 12
LOW VOLTAGE CONN.
7 “ DIA. KNOCKOUT
8
FRONT
All dimensions are in inches. They are
subject to change without notice. Certified
dimensions will be provided upon request.
HIGH VOLTAGE
CONN. 13132“ x 7 8" DIA.
KNOCKOUT
SIDE SUPPLY
AIR OPENING
14 12
43
1
2
40 12
26 34
6
28 38
22 12
OUTDOOR
COIL
14 12
BACK
3 38
CONDENSATE
DRAIN 34“ NPTI
SIDE RETURN
AIR OPENING
BOTTOM SUPPLY
AIR OPENING
2 38
14 12
13 4
3 12
15
15
14
3
15
4
28 916
3 12
BOTTOM RETURN
AIR OPENING
13 4
FIG. 4 - DIMENSIONS
8
Unitary Products Group
035-19392-000-A-0303
SEQUENCE OF OPERATION
Anti-short Cycle Timer
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 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.
The following sequences of operation are based on using a
standard single-stage heat pump thermostat.
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 41/2 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
Heat Pump Safety Switch 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.
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.
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.
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.
Unitary Products Group
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.
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.
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035-19392-000-A-0303
TABLE 8 - THERMOSTAT SIGNALS (SINGLE PHASE UNITS)
SIGNAL
STATE
BOARD FUNCTION
ON
FAN INSTANT ON
OFF
FAN INSTANT OFF
ON
FAN INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
REVERSING VALVE ENERGIZED
SYSTEM OPERATES IN COOLING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
FAN 60 SEC. DELAY OFF
ON
FAN INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
SYSTEM OPERATES IN HEATING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
FAN 60 SEC. DELAY OFF
ON
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
OFF
HEATER BANK 3 ELEC. HEAT INSTANT OFF
HEATER BANK 2 ELEC. HEAT 12 SEC. DELAY OFF
HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF
FAN 10 SEC. DELAY OFF
ON
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
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
HEATER BANK 3 ELEC. HEAT INSTANT OFF
HEATER BANK 2 ELEC. HEAT 12 SEC. DELAY OFF
HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF
FAN 60 SEC. DELAY OFF
ON
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
OFF
HEATER BANK 3 ELEC. HEAT INSTANT OFF
HEATER BANK 2 ELEC. HEAT 12 SEC. DELAY OFF
HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF
FAN 10 SEC. DELAY OFF
“G”
“G” & “Y” & “O”
“G” & “Y”
“G” & “W”
“G” & “Y” & “W”
“W”
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Unitary Products Group
035-19392-000-A-0303
TABLE 9 - THERMOSTAT SIGNALS (THREE PHASE UNITS)
SIGNAL
STATE
BOARD FUNCTION
ON
FAN INSTANT ON
OFF
FAN INSTANT OFF
ON
FAN INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
REVERSING VALVE ENERGIZED
SYSTEM OPERATES IN COOLING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
FAN 60 SEC. DELAY OFF
ON
FAN INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
SYSTEM OPERATES IN HEATING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
FAN 60 SEC. DELAY OFF
ON
FAN INSTANT ON
HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON
HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON
OFF
HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF
HEATER BANK 1, 2 & 3 ELEC. HEAT 12 SEC. DELAY OFF
FAN 10 SEC. DELAY OFF
ON
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
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF
HEATER BANK 1, 2 & 3 ELEC. HEAT 12 SEC. DELAY OFF
FAN 60 SEC. DELAY OFF
ON
FAN INSTANT ON
HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON
HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON
OFF
HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF
HEATER BANK 1, 2 & 3 ELEC. HEAT 12 SEC. DELAY OFF
FAN 10 SEC. DELAY OFF
“G”
“G” & “Y” & “O”
“G” & “Y”
“G” & “W”
“G” & “Y” & “W”
“W”
Unitary Products Group
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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.
FILTERS - Inspect once a month. Replace Disposable or clean
Permanent Type as necessary. DO NOT replace Permanent
Type with Disposable.
MOTORS - Indoor and outdoor fan motors are permanently lubricated and require no maintenance.
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.
CAUTION: Exercise care when cleaning the coil so that the
coil fins are not damaged.
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.
12
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.
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