Unitary products group HDHB180 User manual

GENERAL
These condensing units are designed for outdoor installation
on a roof or at ground level. Every unit is completely piped and
wiredatthefactoryandisshippedreadyforimmediateinstalla-
tion.Only theliquid andsuction linesto theevaporator coil,the
control wiring and the main power wiring are required to com-
plete the installation. Each unit is dehydrated, evacuated, leak
tested and pressure tested at 450 psig before being pressur-
izedwithaholdingcharge ofrefrigerant-22forshipmentand/or
storage.
Allcontrolsarelocatedinthefrontoftheunitandarereadilyac-
cessible for maintenance, adjustment and service. All wiring
(powerandcontrol)canbemadethroughthefrontoftheunit.
REFERENCE
This instruction covers the installation and operation of the ba-
sic condensing unit. For information on the installation and op-
erationof theevaporator blowerunits,refertoinstruction Form
550.23-N4W.
All accessories come with a separate installation manual.
RefertoPartsManualfor completelisting ofreplacement parts
on this equipment.
All forms may be ordered from:
Standard Register
2101 West Tecumseh Road
Norman, OK 73069
SPLIT-SYSTEM
CONDENSING UNITS
(AIR COOLED)
Supersedes: Nothing 035-17393-000 Rev. A (0501)
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.
INSTALLATION
INSTRUCTION
MODELS HDHB180 & 240

2 Unitary Products Group
035-17393-000 Rev. A (0501
General................................................................................1
Reference............................................................................1
Inspection............................................................................1
Nomenclature......................................................................2
INSTALLATION
Limitations ...........................................................................3
Location...............................................................................3
Roof-Top Locations ......................................................3
Ground Level Locations ...............................................3
Rigging and Handling..........................................................3
Center of Gravity..........................................................3
Clearances ..........................................................................4
Power and Control Wiring ...................................................4
Power Wiring................................................................4
Control Wiring ..............................................................4
Compressor.........................................................................4
Compressor Crankcase Heater...........................................4
Refrigerant Piping................................................................7
General Guidelines ......................................................7
Line Sizing....................................................................7
Service Valves..............................................................7
Extending the Service Ports.........................................9
Installation ...........................................................................9
Evacuation and Charging....................................................9
Alternate Charging Method ........................................10
START-UP
Crankcase Heater .............................................................12
Pre-Start Check.................................................................12
Initial Start-Up....................................................................12
OPERATION
Unit Operation - 15 Ton.....................................................12
Unit Operation - 20 Ton.....................................................12
Safety Features.................................................................13
Secure Owner's Approval..................................................13
Maintenance......................................................................13
Cleaning Condenser Surface.....................................13
Lubrication..................................................................13
Compressor Replacement .........................................13
TABLES
No. Description
Page
1 Unit Application Data.................................. 3
2 Physical Data............................................. 4
3 Electrical Data............................................ 6
4 Suction Lines.............................................. 7
5 Liquid Lines................................................ 8
6 Refrigerant Line Charge............................. 8
7 Cooling Cap's. & Power Requirements...... 8
FIGURES
No. Description
Page
1 Center of Gravity........................................ 3
2 Typical Rigging........................................... 4
3 Typical Field Wiring.................................... 5
4 Unit Dimensions and Clearances............... 6
5 Point Loads................................................ 6
6 Extending the Service Ports....................... 10
7 Charging Curve for HHB180...................... 11
8 Charging Curve for HHB240...................... 11
TABLE OF CONTENTS
H D H B - T 8 A
PRODUCT NOMENCLATURE
PRODUCT GENERATION
D = 4th Generation
PRODUCT CATEGORY
H = Split-System Condensing Unit
PRODUCT IDENTIFIER
HB = Condensing Unit
VOLTAGE CODE
-T = 208/230-3-60
-W = 460-3-60
-X = 573-3-60
NOMINAL COOLING
CAPACITY
180 = 15 Ton
240 = 20 Ton
FACTORY INSTALLED HEAT
A = Not Applicable
1 0

INSPECTION
Assoonasaunitisreceived,itshouldbeinspectedforpossible
damage during transit. If damage is evident, the extent of the
damageshould benoted onthe carrier'sfreight bill.Aseparate
request for inspection by the carrier's agent should be made in
writing.
LIMITATIONS
These units must be installed in accordance with all national
andlocalsafetycodes.Ifnolocalcodesapply,installationmust
conform with the appropriate national codes. See Table 1 for
Unit Application Data. Units are designed to meet National
SafetyCodeStandards.Ifcomponentsaretobeaddedtoaunit
to meet local codes, they are to be installed at the dealer's
and/or the customer's expense.
LOCATION
Use the following guidelines to select a suitable location for
these units.
1. The condensing unit is designed for outdoor installation
only. Thecondenser fansarethe propellertypeand arenot
suitable for use with ductwork.
2. The condensing unit and the evaporator blower should be
installed as close together as possible and with a minimum
numberofbendsintherefrigerantpiping.Referto“RE-
FRIGERANT PIPING” for additional information.
3. The condensing unit should not be installed where normal
operating sounds may be objectionable. On either rooftop
orgroundlevelinstallations,rubberpaddingcanbeapplied
between the base rails and their supports to lessen any
transmission of vibration.
ROOF-TOP LOCATIONS
Becarefulnottodamagetheroof.Consultthebuildingcontrac-
tororarchitectiftheroofisbonded.Choosealocationwithade-
quate structural strength to support the unit.
The condensing unit must be mounted on solid level supports.
The supports can be channel iron beams or wooden beams
treated to reduce deterioration.
Aminimum of two (2) beams are required to support each unit.
The beams should: (1) Be positioned perpendicular to the roof
joists.(2)Extendbeyondthedimensionsoftheunittodistribute
the load on the roof. (3) Be capable of adequately supporting
theentireunitweight.RefertoFigure1andTable2forloaddis-
tribution and weights.
Thesebeamscanusuallybesetdirectlyontheroof.Flashingis
not required.
NOTE: On bonded roofs, check for special installation
requirements.
GROUND LEVEL LOCATIONS
The units must be installed on a one-piece level concrete slab
with a minimum thickness of 4 inches. The length and width
should be at least 6 inches greater than the units overall base
dimensions. Refer to Figure 4.
Footers under the slab that extend below the frost line is rec-
ommended.Any strainon therefrigerant linesmaycause are-
frigerant leak. The slab should not be tied to the building
foundation because noise and vibration will telegraph into the
building.
A unit can also be supported by concrete piers. These piers
should (1) extend below the frost line, (2) be located under the
unit's four corners, and (3) be sized to carry the entire unit
weight. Refer to Figure 1 and Table 2 for the center of gravity
and unit weight.
CAUTION: Care should be taken to protect the unit from tam-
pering and unauthorized persons from injury.
Screws on access panels will prevent casual tam-
pering. Additional safety precautions such as
fences around the unit or locking devices on the
panels may be advisable. Check local authorities
for safety regulations.
RIGGING AND HANDLING
Exercise care when moving the unit. Do not remove any pack-
aging until the unit is near the place of installation.
Rigthe unitby attaching chainor cableslingswith hooksto the
round lifting holes provided in the base rails.
CAUTION: Spreaders, longer than the largest dimension
across the unit, MUST be used across the top of
the unit.
WARNING: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 from the front,
rear or the compressor end only through the slotted openings
provided in the base rails.
Unitary Products Group 3
035-17393-000 Rev. A (0501
INSTALLATION
MODEL HAHB180 & 240
Voltage Variation1
Min. / Max. 208/230-3-60 187 / 252
460-3-60 414 / 506
Ambient Air on Con-
denser Coil
Min. / Max.
Standard 45°F / 115°F
with Head Pressure
Control 0°F / 115°F
1Utilization range “A” in accordance with ARI Standard 110.
2The minimum allowed ambient temperature for mechanical cooling without the head pres-
ure control accessory installed must be raised if the indoor air flow is less than the
minimum value given in the capacity tables.
TABLE 1 - UNIT APPLICATION DATA
FIG. 1 - CENTER OF GRAVITY
Unit Dim. (in.)
AB
15 Ton 16 32
20 Ton 16 32

CAUTION: LENGTH OF FORKS MUST BE A MINIMUM OF
54" (when lifting from the compressor end of the
unit).
Remove the nesting brackets from the four corners on top of
the unit. All screws that are removed to take these brackets off
must be replaced on the unit.
CLEARANCES
All units require certain minimum clearances for proper opera-
tion and service. Refer to Figure 4 for these clearances.
WARNING:Do not permit overhanging structures or shrubs to
obstruct condenser air discharge.
Additional height may be required for snow clearance if winter
operation is expected.
POWER AND CONTROL WIRING
Install electrical wiring in accordance with the latest National
Electrical Code (NFPA Standard No. 70) and/or local regula-
tions. The unit should be grounded in accordance with these
codes.
POWER WIRING
Check the voltage of the power supply against the data on the
unit nameplate. Check the size of the power wire, the discon-
nect switch and the fuses against the data on Table 3.
NOTE: Copperconductorsmust beinstalledbetween thedis-
connect switch and the unit.
Refer to Figure 4 for the location of the power wire access
openingthroughthefrontoftheunit.Thisopeningwillrequirea
field-supplied conduit fitting.
The field-supplied disconnect switch must be suitable for an
outdoor location. Although it should be installed near the unit,
do NOT secure it to the unit cabinet.
Refer to Figure 3 for typical field wiring.
CONTROL WIRING
Refer to Figure 4 for the location of the control wire access
opening through the front of the unit.
Route the necessary low voltage control wires (18 AWG min.)
from the TB1 terminal block inside of the unit control box
through this access opening to the room thermostat and to the
evaporator blower motor controller.
The room thermostat should be located on an inside wall ap-
proximately 56" above the floor where it will not be subject to
drafts, sun exposure or heat from electrical fixtures or appli-
ances. Follow manufacturer's instructions enclosed with ther-
mostat for general installation procedure.
Refer to Figure 3 for typical field wiring.
COMPRESSOR
Aftertheunit isin its finalposition, thehold-down nuts securing
the compressor should be backed off to allow the compressor
to move freely on its springs. Remove 4 shipping clips by slip-
ping them from around the springs. See tag on compressor for
instructions on installing the rubber grommets and re-
tightening the nuts.
COMPRESSOR CRANKCASE HEATER
The compressor is equipped with a crankcase heater to pre-
vent refrigerant from mixing with crankcase oil during the
“OFF” cycle. The heater will be energized when the compres-
sor is not running providing the unit disconnect switch is
closed.
4 Unitary Products Group
035-17393-000 Rev. A (0501
W ARNING
B e fo re liftin g th e u n it,
m a k e s u re th a t its w e ig h t
is distributed equally on
the cables so that it w ill
lift e v e n ly
SPREADER
BAR
LIFTIN G
HOLES
FIG. 2 - TYPICAL RIGGING
SPREADER
BAR
Model Compressor Set
1
Condenser Fan (24") Fan Motor
2
Coil Unit Weight (lb) Refrigerant Charge, R-22 (lb-oz)
Tons Stages Qty Blades/
Pitch
Nom.
CFM Qty HP Nom. RPM Rotation Fins/In Rows Deep Shipping Operating Holding
3
Operating
4
HDHB180 15 2 2 3/34 10,800 2 1 1100 CCWLE 20 2 920 930 1-0 25-0
HDHB240 20 2 2 3/34 11,300 2 1 1100 CCWLE 20 2 970 990 1-0 37-0
1. Compressor set consists of two Copeland scroll compressors manifolded into a single refrigerant circuit.
2. The ball bearing, 48 frame, single phase condenser fan motors have internal protection and are directly connected to the condenser fans.
Motor rotation is counterclockwise when viewing the lead end, which is opposite of the shaft end.
3. Holding charge is the amount in the unit as shipped from the factory.
4. Operating refrigerant charge is for the condensing unit and the matching York air handler, but does not include the charge in the interconnecting piping.
See Table 6to determine the additional refrigerant charge required for interconnecting piping.
TABLE 2 - PHYSICAL DATA

Unitary Products Group 5
035-17393-000 Rev. A (0501
FIG. 3 - TYPICAL FIELD WIRING
TABLE 3 - ELECTRICAL DATA (Installation); ELECTRICAL DATA (Sales)
Compressor Condenser Fan Motor Unit
Model Unit Power
Supply Qty RLA LRA Qty HP FLA
Minimum
Circuit
Ampacity
(Amps)
Maximum
Fuse
Size
1
(Amps)
HDHBT180A 208/230/3/60 2 32.1 195 2 1 4.7 81.6 110
HDHBW180A 460/3/60 2 16.4 95 2 1 2.5 41.9 50
HDHBX180A 575/3/60 2 12 80 2 1 2.0 31.2 40
HDHBT240A 208/230/3/60 2 42 239 2 1 4.7 103.9 125
HDHBW240A 460/3/60 2 19.2 125 2 1 2.5 48.2 60
HDHBX240A 575/3/60 2 13.8 80 2 1 2.0 35 45
1. Dual element, time delay type.
2. The 208-230 V compressors and motors use a single tap for the entire range of voltages. The 208/230 V to 24 V transf
o
have different taps for 208 and 230 V.
TABLE 3 - ELECTRICAL DATA