Unitary products group HDHB180, HDHB240 Installation Instruction
INSTALLATION
INSTRUCTION
CONDENSING UNITS
Supersedes: Nothing
MODELS HDHB180 & 240
SPLIT-SYSTEM
(AIR COOLED)
035-17393-000 Rev. A(0501)
GENERAL
These condensing units are designed for outdoor installation
on a roof or at ground level. Every unit is completely piped and
wiredatthefactory andis shippedready forimmediate installa
tion.Only the liquid and suction linesto the evaporator 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
izedwith aholding charge of refrigerant-22 forshipment and/or
storage.
Allcontrols arelocatedin thefront ofthe unitand arereadilyac
cessible for maintenance, adjustment and service. All wiring
(powerandcontrol) canbemade throughthefront of theunit.
Installershould pay particular attention to the words: NOTE, CAUTION and WARNING.Notes
installation easier. Cautions
and/or equipment damage may result if installation procedure is not handled properly.
are given to prevent equipment damage. Warnings are given to alert installer that personal injury
REFERENCE
This instructioncovers the installation and operation of the ba
sic condensingunit. For information on the installation and op
erationof the evaporatorblower units, referto instruction Form
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550.23-N4W.
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All accessories come with a separate installation manual.
Referto PartsManual for complete listing of replacement parts
on this equipment.
All forms may be ordered from:
Standard Register
2101 West Tecumseh Road
Norman, OK 73069
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are intended to clarify or make the
035-17393-000 Rev. A(0501
TABLE OF CONTENTS
General
Reference
Inspection
Nomenclature
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INSTALLATION
Limitations
Location
Rigging and Handling
Clearances
Power and Control Wiring
Compressor
Compressor Crankcase Heater
Refrigerant Piping
Installation ...........................................................................9
Evacuation and Charging....................................................9
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Roof-Top Locations
Ground Level Locations
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Center of Gravity
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Power Wiring
Control Wiring
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General Guidelines
Line Sizing
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Service Valves..............................................................7
Extending the Service Ports.........................................9
Alternate Charging Method ........................................10
START-UP
Crankcase Heater .............................................................12
Pre-Start Check.................................................................12
Initial Start-Up
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12
1
1
Unit Operation - 15 Ton
1
Unit Operation - 20 Ton
2
Safety Features
Secure Owner's Approval
Maintenance
3
3
3
Cleaning Condenser Surface
Lubrication
Compressor Replacement
3
3
3
4
4
4
4
4
4
7
7
7
No. Description
Page
1 Unit Application Data
2 Physical Data
3 Electrical Data
4 Suction Lines
5 Liquid Lines
6 Refrigerant Line Charge
7 Cooling Cap's. & Power Requirements
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 Extending the Service Ports
7 Charging Curve for HHB180
8 Charging Curve for HHB240
OPERATION
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TABLES
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FIGURES
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12
12
13
13
13
13
13
13
3
4
6
7
8
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8
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10
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PRODUCT NOMENCLATURE
H D H B - T 8 A
PRODUCT CATEGORY
H = Split-System Condensing Unit
PRODUCT GENERATION
D = 4th Generation
2 Unitary Products Group
PRODUCT IDENTIFIER
HB = Condensing Unit
1 0
VOLTAGE CODE
-T = 208/230-3-60
-W = 460-3-60
-X = 573-3-60
FACTORYINSTALLED HEAT
A = Not Applicable
NOMINAL COOLING
CAPACITY
180 = 15 Ton
240 = 20 Ton
INSTALLATION
INSPECTION
Assoonas aunitis received,itshould beinspectedfor possible
damage during transit. If damage is evident, the extent of the
damageshould be noted on thecarrier's freight bill. Aseparate
request for inspection by the carrier's agent should be made in
writing.
LIMITATIONS
TABLE 1 - UNIT APPLICATION DATA
MODEL HAHB180 & 240
Voltage Variation
Min. / Max.
Ambient Air on Con
denser Coil
Min. / Max.
1
Utilization range “A” in accordance with ARI Standard 110.
2
The 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.
These units must be installed in accordance with all national
andlocal safetycodes. Ifno localcodes apply,installationmust
conform with the appropriate national codes. See Table 1 for
Unit Application Data. Units are designed to meet National
SafetyCodeStandards.Ifcomponents aretobe addedtoa unit
to meet local codes, they are to be installed at the dealer's
and/or the customer's expense.
1
208/230-3-60 187 / 252
460-3-60 414 / 506
Standard
with Head Pressure
Control
45°F / 115°F
0°F / 115°F
035-17393-000 Rev. A(0501
Thesebeamscan usuallybeset directlyonthe roof.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 strain on the refrigerantlines may cause 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
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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.
Dim. (in.)
Unit
AB
15 Ton 16 32
20 Ton 16 32
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LOCATION
Use the following guidelines to select a suitable location for
these units.
1. The condensing unit is designed for outdoor installation
only.Thecondenser fans arethe propeller typeand are not
suitable for use with ductwork.
2. The condensing unit and the evaporator blower should be
installedas close together as possible and with a minimum
numberof bendsin therefrigerant piping.Refer to“RE
FRIGERANT PIPING” for additional information.
3. The condensing unit should not be installed where normal
operating sounds may be objectionable. On either rooftop
orground levelinstallations, rubberpadding canbe applied
between the base rails and their supports to lessen any
transmission of vibration.
ROOF-TOP LOCATIONS
Becarefulnot todamage theroof. Consultthebuilding contrac
tororarchitect iftheroof isbonded.Choose alocationwith ade
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)Extend beyondthedimensions oftheunit todistribute
the load on the roof. (3) Be capable of adequately supporting
theentire unitweight. Referto Figure1 and Table2for loaddis
tribution and weights.
FIG. 1 - CENTER OF GRAVITY
CAUTION: Care should be taken to protect the unit from tam
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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 unit by attachingchain or cable slingswith hooks to the
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round lifting holes provided in the base rails.
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CAUTION: Spreaders, longer than the largest dimension
WARNING:BEFORE LIFTING A UNIT, MAKE SURE THAT
Units may also be moved or liftedwith a fork-lift from the front,
rear or the compressor end only through the slotted openings
provided in the base rails.
across the unit, MUST be used across the top of
the unit.
ITS WEIGHT IS DISTRIBUTED EQUALLY ON
THE CABLES SO THAT IT WILLLIFT EVENLY.
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Unitary Products Group 3
035-17393-000 Rev. A(0501
SPREADER
BAR
SPREADER
BAR
FIG. 2 - TYPICAL RIGGING
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 .
LIFTIN G
HOLES
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: Copperconductors must be installed between the dis
connect switch and the unit.
Refer to Figure 4 for the location of the power wire access
openingthrough thefront ofthe unit.This openingwill requirea
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 thermostatand to the
evaporator blower motor controller.
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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 operation and service. Refer to Figure 4 for these clearances.
WARNING:Donot permit overhanging structures or shrubs to
obstruct condenser air discharge.
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 thermostat for general installation procedure.
Refer to Figure 3 for typical field wiring.
COMPRESSOR
Afterthe unit isin itsfinal position, thehold-down nutssecuring
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 retightening the nuts.
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
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
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sor is not running providing the unit disconnect switch is
closed.
codes.
TABLE 2 - PHYSICAL DATA
Compressor Set
Model
Tons Stages Qty
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 manif olded into a single refrigerant circuit.
2. The ball bearing, 48 frame, single phase condenser fan motors hav e internal protection and are directly connected to the condenser fans.
Motor rotation is counterclockwise when viewing the lead end, which is opposite of the shaf t 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 6 to determine the additional refrigerant charge required for interconnecting piping.
1
Condenser Fan (24") Fan Motor
Blades/
Pitch
Nom.
CFM
Qty HP
2
Nom.
RPM
Coil Unit Weight (lb) Refrigerant Charge, R-22 (lb-oz)
Rotation Fins/In
Rows
Shipping Operating
Deep
Holding
3
Operating
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4
4 Unitary Products Group
035-17393-000 Rev. A(0501
o
FIG. 3 - TYPICAL FIELD WIRING
TABLE 3 - ELECTRICAL DATA
TABLE 3 - ELECTRICAL DATA (Installation); ELECTRICAL DATA (Sa les)
Compressor Condenser Fan Motor Unit
Minimum
Model
Unit Power
Supply
Qty RLA LRA Qty HP FLA
Circuit
Ampacity
(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 f or the entire range of voltages. The 208/230 V to 24 V transf
have different taps f or 208 and 230 V.
Unitary Products Group 5
Maximum
Fuse
1
Size
(Amps)
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