York B2CH180 User Manual
®
SUNLINE 2000
SINGLE PACKAGE AIR-TO-AIR
HEAT PUMPS
INSTALLATION INSTRUCTION
Supersedes: Nothing
MODELS B2CH180
(WORLD 50 HZ)
035-18895-000-A-0902
GENERAL
YORK Model B*CH units are single package heat pumps
designed for outdoor installation on a rooftop or a slab. These
unitscanbe equipped with factory installed electric heaters for
supplemental heating applications.
The units are completely assembled on rigid, permanently
attachedbaserails.Allpiping,refrigerantcharge,andelectrical
wiring is factory installed and tested. The units require only
electric power, duct connections and installation of fixed
outdoor air intake damper (units without economizer or
motorized damper option only) at the point of installation.
These units are designed and manufactured under ISO 9002
Quality System Certification
The supplemental electric heaters have nickel-chrome
elements and utilize single point power connection.
INSPECTION
Assoonasaunitisreceived,itshouldbeinspectedforpossible
damage during transit. If damage is evident, the extent of the
damageshould benoted on thecarrier's freightbill. A separate
request for inspection by the carrier'sagent should be made in
writing. See Local Distributor for additional information.
REFERENCE
Additional information on the design, installation, operation
and service of this equipment is available in the following
reference documents:
•
55.70-N7- General Installation
•
55.70-N2 -Pre-start & Post-start Check List
•
44-320-10 - Barometric Relief Damper Accessory
•
Renewal Parts: - Refer to the Renewal Parts 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 Telephone: 877-318-9675
Toll Free Fax: 877-379-7920
CAUTION
TH IS P RO DU CT MU ST BE INSTA LLE D IN S T R ICT COMPLIA N C E W IT H
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
OR PROPERTY DAMAGE.
Installer should pay particular attention to the words: NOTE, CAUTION and WARNING. Notes
make the installation easier.Cautions
sonal injury and/or equipment damage may result if installation procedure is not handled correctly.
are given to prevent equipment damage. Warnings are given to alert installer that per
are intended to clarify or
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TABLE OF CONTENTS
035-18895-000-A-0902
General
Inspection
Reference
Nomenclature
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INSTALLATION
Limitations
Location
Rigging and Handling
Clearances
Ductwork
Fixed Outdoor Air Intake Damper
Condensate Drain
Compressors
Filters
Service Access
Thermostat
Power and Control Wiring
Optional Electric Heaters
Optional Econ./Motorized Damper Rain Hood ....................6
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OPERATION
Cooling System .................................................................12
Preliminary Operation........................................................12
Cooling Sequence of Operation ........................................12
Heating Sequence of Operation........................................12
Heat Anticipator Setpoint...................................................13
Checking Supply Airflow
Defrost Sequence of Operation
Secure Owner's Approval
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13
14
15
1
Normal Maintenance
1
1
2
No. Description Page
1 Unit Application Data
3
3
3
3
3
4
4
4
2 Electric Heat Application Data
3 Physical Data
4 Supply Air Blower Performance
5 Static Resistances
6 Blower Motor and Drive Data
7 Electrical Data (Basic Units)
8 Electrical Data (Units w/Elec. Heat)
9 Heat Anticipator Setpoints
10 Blower Motor Pulley Adjustment
4
4
4
5
5
No. Description Page
1 Typical Rigging
2 Center of Gravity
3 Fixed Outdoor Air Damper
4 Recommended Drain Piping...................... 4
5 Typical Field Wiring.................................... 5
6 Enthalpy Setpoint Adjustment.................... 7
7 Dimensions and Clearances...................... 8
8 Belt Adjustment.......................................... 13
9 Pressure Drop versus Supply Airflow......... 13
10 Defrost Initiation Times .............................. 14
11 Ambient Modified Time/Temp. Control....... 15
MAINTENANCE
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TABLES
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FIGURES
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15
3
5
7
10
11
11
11
11
13
13
3
3
4
PRODUCT NOMENCLATURE
B 1 C H 3E
PRODUCT CATEGORY
B = Single Package Heat Pump
(Air Cooled)
PRODUCT GENERATION
2 = 2nd Generation
PRODUCT IDENTIFIER
CH = Heat Pump
2 Unitary Products Group
NOMINAL COOLING
CAPACITY
180 = 49.5 kW (169 MBH)
0 681 0 5 0
FACTORYINSTALLED
HEAT
A = No Heat
E = Electric Heat
VOLTAGE CODE
50 = 400/415-3+N-50
NOMINAL
HEATING CAPACITY
018 = 18 kW
036 = 36 kW
054 = 54 kW
072 = 72 kW
035-18895-000-A-0902
INSTALLATION
LIMITATIONS
These units must be installed in accordance with applicable
national and local or municipal safety codes.
Refer to Table 1 for Unit Application Data and to Table 2 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.
TABLE 1 - UNIT APPLICATION DATA
Voltage Variation (Min. / Max.) 400 / 415V 360 / 456V
Wet Bulb Temperature of Air on
Indoor Coil, (Min. / Max.)
Dry Bulb Temperature of Air on
Outdoor Coil, (Min./ Max.)
°C
°F
°C
°F
14 / 22
57 / 72
7 / 52
45 / 125
LOCATION
Use the following guidelines to select a suitable location for
these units.
1. Unit is designed for outdoor installation only.
2. Outdoor coils must have an unlimited supply of air.
3. For ground level installation, use a level concrete slab with
a minimum thickness of 102mm (4"). The length and width
should be at least 152mm (6") greater than the unit base
rails. Do not tie slab to the building foundation.
4. Roofstructuremustbeable to support the weightoftheunit
and its options and/or accessories. Unit must be installed
on a solid level roof curb or appropriate angle iron frame.
CAUTION: If a unit is to be installed on a roof curb or spe
cialframeotherthanaYORKroofcurb,gasket
ingmust beapplied toall surfaces that come in
contact with the unit underside.
5. Maintain level tolerance to 13mm (1/2") maximum across
the entire length or width of the unit.
RIGGING AND HANDLING
Exercise care when moving the unit. Do not remove any
packaginguntil the unit is near the placeof installation.Rig the
unit by attaching chain or cable slings to the lifting holes
provided in the base rails. Spreaders, whose length exceeds
the largest dimension across the unit, MUST be used across
the top of the unit. Refer to Figure 1.
Unitsmayalsobe moved or liftedwithaforklift,from the front or
rear only, providing that an accessory skid is used.
LENGTH OF FORKS MUST BE A MINIMUM OF 2286mm
(90").
RefertoTable3for unit weights and to Figure 2 for approximate
center of gravity.
FIG. 1 - TYPICAL RIGGING
2337
(92")
1143
(45")
3181 (125-1/4") (180)
FIG. 2 - CENTER OF GRAVITY
CLEARANCES
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All units require certain clearances for correct operation and
service. Refer to the unit dimensions detail, Figure 7, for the
clearances required for combustible construction, servicing,
and unit operation.
WARNING:Do not permit overhanging structures or shrubs to
obstruct outdoor air discharge outlet.
DUCTWORK
A closed return duct system shall be used. This does not
preclude use of economizers or outdoor fresh air intake. The
supply and return air duct connections at the unit should be
made with flexible joints to minimize noise.
Thesupply andreturn airduct systems should be designed for
theairflowandstaticrequirementsofthejob.TheyshouldNOT
be sized to match the dimensions of the duct connections on
the unit.
CAUTION: When fastening ductwork to side duct flanges on
Refer to Figure 7 for information concerning side and bottom
supply and return air duct openings.
unit, insert screws through duct flanges only. DO
NOT insert screws through casing.
Outdoor ductwork must be insulated and water
proofed.
OUTDOOR COIL
END OF UNIT
1524
(60")
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Unitary Products Group 3
FIXED OUTDOOR AIR INTAKE DAMPER
035-18895-000-A-0902
CONDENSATE DRAIN
This damper assembly is shipped inside the return air
compartment. It is completely assembled and ready for
installation. A damper baffle inside the hood is adjustable to
provide variable amountsof outdoor air intake onunits that are
not provided with an economizer or motorized damper option.
Refer to Figure 3.
Gasketing and mounting screws are provided in a parts bag
attached to the hood assembly. Apply gasketing to the three
flangesurfaces onthe hood prior to installingthe hood. Extend
gasketing approximately 6mm (1/4") beyond the top and
bottom of the two side flanges to ensure adequate sealing.
Adjusting the damper to the desired air flow may be done
before mounting the hood into position or (after installation) by
removing the front hood panel or the screen on the bottom of
the hood. Damper baffle in position 1 will allow approximately
10%recirculated air flow,position 2 approximately15% and, to
allow approximately 25%, remove
On units with bottom
assembly over the opening in the side
Remove and discard the opening cover and the covering over
the hood mounting holes (used for shipping) before installing.
Secure with the screws provided.
Onunits with side
on the return air ductwork as close to the unit as possible. Cut
an opening 406mm (16") high by 457mm (18") wide in the
ductwork to accommodate the damper. Using the holes in the
hood flanges as a template, drill 3.6mm (9/64") dia. (#26 drill)
holesintotheductworkand secure with the screws provided.
CAUTION: If outdoor air intake will not be required on units
with bottom return air applications, thedamper assembly should still be mounted on the side return
air access panel,per theinstructions above,to ensure moisture is not drawn into the unit during operation.Thecovering over the mountingholesonly
need be removed. Do not remove the opening
cover.
return air applications, install the damper
airapplications, install the damperassembly
the damper baffle.
return air access panel.
Plumbing must conform to local codes. Use a sealing
compound on male pipe threads. Install a condensate drain
line from the 25mm (1" NPT) female connection on the unit to
spill into an open drain.
An alternate drain connection (25mm [1" NPT] female
coupling) is provided inboard on the same centerline as the
exterior location.
NOTE: The condensate drain line MUST be trapped to pro
vide proper drainage. See Figure 4.
FIG. 4 - RECOMMENDED DRAIN PIPING
COMPRESSORS
Unitsare shipped with compressor mountings factory-adjusted
and ready for operation.
CAUTION: Do Not loosen compressor mounting bolts.
FILTERS
Eachunitissuppliedwith51mm(2")filters. Filtersmustalways
be installed ahead of the indoor coil and must be kept clean or
replaced with same size and type. Dirty filters reduce the
capacity of the unit and result in frosted coils or safety
shutdown.Minimumfilter area andrequiredsizes are shownin
Table 3.
SERVICE ACCESS
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Access to all serviceable components is provided by the
following removable panels:
•
Compressor compartment
•
Electric Heat compartment
•
Side Supply & Return Air compartments (two panels)
•
Main control box
•
Blower compartment (three panels)
•
Filter compartment
•
Outdoor Air compartment (two panels)
Refer to Figure 7 for location of these access panels.
CAUTION: Make surethatallscrews and panel latches arere
placedand properly positioned ontheunit to main
tain an air-tight seal.
THERMOSTAT
The room thermostat should be located on an inside wall
approximately 1422mm (56") above the floor where it is not
subject to drafts, sun exposure or heat from electrical fixtures
or appliances. Follow manufacturer's instructions enclosed
withthermostatfor general installationprocedure.Color coded
FIG. 3 - FIXED OUTDOOR AIR DAMPER
4 Unitary Products Group
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035-18895-000-A-0902
NEUTRAL
TERMINAL
BLOCK
CONTACTOR
POWER WIRING
GRD.
LUG
NOTE: REFER TO ELECTRICAL DATA TABLES
TO SIZE THE WIRE, DISCONNECT SWITCH AND
OVERCURRENT PROTECTION.
FIELD-SUPPLIED
DISCONNECT
THREE
PHASE
POWER
SUPPLY
FIG. 5 - TYPICAL FIELD WIRING
insulated wires 1.0mm2(#18 AWG) should be used to connect
thermostat to unit. Eight conductors are required.
The subbase on the low voltage thermostat includes an
“Emergency Heat ” position on the system switch and a pilot
light. In the “Emergency Heat” position, the thermostat
provideselectricresistanceheat only.The compressors will not
run.The pilotlight indicates thatthe switchis on “EMHT”. Nine
conductors are required for this application.
POWER AND CONTROL WIRING
Field wiring to the unitand electricalgrounding ofthe unitmust
conform to the applicable national, and local or municipal
codes. Voltage tolerances which must be maintained at the
compressor terminals during starting and running conditions
are indicated on the unit Rating Plate and Table 1.
The internal wiring harness furnished in this unit is an integral
part of the unit. Field alteration to comply with electrical codes
should not be required.
Afused disconnect switch shouldbe field provided for theunit.
The switch must be separate from all other circuits. Refer to
Figure7 forinstallation location. If any of the wiresupplied with
theunitmustbereplaced,replacementwiremustbe of the type
shown on the wiring diagram. Refer to Table 7 for electrical
data.
Electrical line must be sized correctly to carry the load. USE
COPPER CONDUCTORS ONLY. Each unit must be wired
with a separate branch circuit fed directly fromthe meter panel
and properly fused.
CAUTION: When connecting electrical power and control wir
ing to the unit, waterproof type connectors MUST
BE USED so that water or moisture cannot be
drawn into the unit during normal operation. The
above waterproofing conditions will also apply
wheninstallinga field-supplied disconnect switch.
Refer to Figure 5 for typical field wiring and to the appropriate
unit wiring diagram for control circuit and power wiring
information.
OPTIONAL ELECTRIC HEATERS
The factory installed heaters are wired for single point power
supply.Powersupplyneed only be brought intothesinglepoint
terminalblockandthermostatwiringtothelowvoltageterminal
strip located in the upper portion of the unit control box.
TABLE 2 - ELECTRIC HEAT APPLICATION DATA
Minimum
Heater
Model
Airflow
3
m
/s (CFM)
180 W1 W2 W1 W2
E018
E036
E054
E072
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*Refer to Table 8 for total heater output kW for the respective heater.
2.12
(4500)
2.12
(4500)
2.36
(5000)
2.36
(5000)
Output by Operation Mode and
Heat Stage
kW @ 400/415V*
Normal Operation Emergency Heat
Mechanical 11.3/13.5 11.3/13.5 None
Mechanical 11.3/13.5 11.3/13.5 11.3/13.5
Mechanical 11.3/13.5 11.3/13.5 22.6/26.9
Mechanical 22.6/26.9 22.6/26.9 22.6/26.9
Unitary Products Group 5
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