Haier HC18D2VAR User manual

SERVICE MANUAL
●Features
Models

 Haier Hi-Efficiency aluminium fin and copper tube design
 Benchmark hermetic compressor design
 Powder coated full metal jacket
Central Air Conditioning
 Durable construction
 Efficient performance and economical operation
 Quick, easy installation and service
Manual code: SYJS-013-07REV.0 Edition: 2007-04-02
Condensing Unit,
Value Series HC13-D2
HC18D2VAR
HC30D2VAR
HC42D2VAR
HC24D2VAR
HC36D2VAR

2
CONTENTS
2. PHYSICAL AND ELECTRICAL SPECIFICATIONS……………….....5
1. DESCRIPTION OF PRODUCTS & FEATURES……………………...3
! Warning !
The equipment detailed in this manual should be installed and
serviced only by qualified technicians who are familiar with the safety
procedures required for this work and who have the proper tools,
testing equipment and replacement parts.
During testing, it may be necessary to work with circuits with live
electrical components. Only individuals with proper training that can
follow all electrical safety precautions should perform this work.
Failure to follow all safety precautions could result in property
damage, serious injury, or death.
3. SAFETY PRECAUTION…………………………………………….…...8
4. SYSTEM COMPONENTS AND FUNCTIONS ………………………..8
6. APPLICATION…………………..……………………………………..…11
Central Air Conditioning Model: Condensing Unit, HC13-D2
7. REFRIGERANT DIAGRAM ………………………………..…….……..13
8. INSTALLATION INSTRUCTIONS………………………....…………...13
10. SERVICE AND TROUBLESHOOTING ……………………...……….22
5. ELECTRICAL CONTROL DEVICES…………………………….……..10
9. MAINTENANCE INSTRUCTIONS………………………………..…….21
11. WIRING DIAGRAMS……………………………….…………………...32

3
1.2 NOMENCLATURE FOR MODEL NUMBER
Model number explanation---indoor unit
1.3 ENGINEERING FEATURES:
1. DESCRIPTION OF PRODUCTS & FEATURES
This manual discusses ‘split’ central air conditioning and indoor coils. “Split” central air condition
system refers to the physical location of major air conditioning components. The split system air
conditioning are manufactured to standards of quality and performance.They are 13 SEER(Seasonal
Engery Efficiency Ratio) which meet or exceed the standards imposed by efficiency legislated and
therefore represent both good value today and for years to come. The current air conditioning system
needs less external protection, while increasing the unit efficiency in cooling mode.
COPPER TUBE/ALUMINUM FIN COILS: Both indoor and outdoor coils are designed and matched to
optimize heat transfer while minimizing size and cost, with increased durability and reliability.
Table 1-1
Model number explanation---outdoor unit
Table 1-2
Haier System
type
Nominal
capacity in
(1000) Btuh
SEER
designation
Design
series Electric Designation Body style
H24 DV A R
Brand
symbol:
H:
Haier
Pump
24：
60：
60000BTU/h
A:10SEER;
B:11SEER;
C:12SEER;
D:13SEER
E:14SEER;
F:15SEER;
G:16SEER;
H:17SEER
I:18SEER
1：1st
Generation ;
2: 2nd
Generation
A:
standard
style
S=Scroll,
R=Recipr
ocating
H B 24 00 V A 1 M 20 P
Haier Blower unit
Nominal
capacity in Electric
heater
Electric
Designation
Design
series
Airflow
configuration
Unit
Width(in.) Continuation
Brand
symbol
B:Blower unit
C:Evaporator
W:Wall moun
-ted unit
24:
24000BTU/h
60:
60000BTU/h
00: No;
05: 5KW;
10: 10KW;
15:15KW;
20: 20KW
Y:575V-3Ph-60Hz;
V:208/230V-1Ph-
60Hz;
60Hz;
D:460V-3Ph-
60Hz;
A:115V,1 Ph,60Hz
A:10 SEER
A/C coil
A/C coil
A/C coil
1: 1st
Generation;
2: 2nd
Generation;
M:Multi-
direction
V:Vertical
H:Horizontal
paint
(1000) Btu/h
P: Powder
Efficiency
code
17:17”[432]
22:22”[559]
20:20”[497]
25:25"[625]
A：115V, 1Ph, 60Hz;
60Hz；
D: 460V, 3Ph, 60Hz;
C: 208/230V, 3Ph,
V: 208/230V, 1Ph,
60Hz;
Y: 575V, 3Ph, 60Hz
C:208/230V-3Ph- D:13 SEER
E:14 SEER E: EC motor
C:
Condensing
Unit;
Reserved
1.1 Air conditioning
use scroll and reciprocating compressors. This gives the air conditioning a durable compressor which
Central Air Conditioning Model: Condensing Unit, HC13-D2
2
R: Heat
24000BTU/h;
C

4
Fig.1-1
Fig.1-2
FLOWCHECK DISTRIBUTORS: Outdoor units use the Flowcheck Distributor to act as an open check
valve in the cooling mode.
ACCESSORIES:
CABINETS:
Constructed of powder painted galvanized steel to provide a durable finish
and protection for the outdoor coil.
FAN GUARD AND MOTOR BRACKET:
BASE PAN: This deep-drawn base keeps the bottom of the coil off the
ground, has weep holes to allow for complete drainage.
LOW AMBIENT CONTROL: This factory installed option allows for low temperature operation in
the cooling cycle ambient temperatures down to 0 ℉. This control should be installed in units that
operate in cooling when outdoor
ambient temperatures below 65℉
, and is recommended for all
commercial applications.
and system pressure combinations. This option maybe required on reciprocating compressors with
START COMPONENTS : This option provides additional starting for covering a wide range of voltages
SERVICE VALVES AND PRESSURE PORTS: Mounted external to the cabinet for easy access at
installation and during service.
Welded powder coated guard with independent rod and band motor
bracket, unit top has a deep draw fan venturi for efficient air flow.
flowcheck piston metering.
Fig.1-3
Central Air Conditioning Model: Condensing Unit, HC13-D2

2. PHYSICAL AND ELECTRICAL SPECIFICATIONS
5
Central Air Conditioning
Specifications Subject to Change without Prior Notice
Model: Con densin g U nit, HC13- D2
HC18D2VAR HC24D2VAR HC30D2VAR HC36D2VAR HC42D2VAR
1.5-Ton Outdoor AC 2-Ton Outdoor AC 2.5-Ton Outdoor AC 3-Ton Outdoor AC 3.5-Ton Outdoor AC
New Model New Model New Model New Model New Model
HB2400VD1M20 HB2400VD1M20 HB3600VD1M22 HB3600VD1M22 HB4800VD1M22
HB2400VD1M20-P HB2400VD1M20-P HB3600VD1M22-P HB3600VD1M22-P HB4800VD1M22-P
17000 23000 29000 35000 41000
12240 16560 20880 25200 29520
4,760 6,440 8,120 9,800 11,480
13 13 13 13 13
1,510 2,090 2,630 3,120 3,590
2000 2000 2350 2840 2840
208/230 - 1 - 60 208/230 - 1 - 60 208/230 - 1 - 60 208/230 - 1 - 60 208/230 - 1 - 60
7.6 10.9 14.0 16.4 18.1
15 20 25 30 30
Reciprocating Reciprocating Reciprocating Reciprocating Reciprocating
H21J14BABCA H21J19BABCA H21J24BABCA H21J30BABCA H21J34BABCA
5.4 8.0 10.1 11.8 13.2
36.0 53.5 61.0 78.0 78.0
Yes Yes Yes Yes Yes
No No No No No
0.86 0.86 1.4 1.6 1.6
1/8 1/8 1/4 1/3 1/3
1000 1000 1075 1120 1120
175.0 175.0 210.0 325.0 325.0
18" 18" 18" 18" 18"
33344
Zinc-Coated Steel Zinc-Coated Steel Zinc-Coated Steel Aluminium Aluminium
11222
0.87 x 0.75 0.87 x 0.75 0.87 x 0.75 0.87 x 0.75 0.87 x 0.75
21 21 20 20 20
Enhanced fins Enhanced fins Enhanced fins Enhanced fins Enhanced fins
5/16" Grooved 5/16" Grooved 5/16" Grooved 5/16" Grooved 5/16" Grooved
Condenser coil
Electrical
Compressor
Fan Motor
Fan
Tube OD and Type
Number or Rows
Tube spacings (V x H) (In)
Fins per Inch - FPI
Fin Type
Input Watts
Diameter (In)
No. of Blade
Fan Material
Crankcase Heater
RLA (Rated Load Amps)
Rated House Power (hp)
Nominal RPM
Model Number
RLA (Rated Load Amps)
LRA (Locked Rotor Amps)
Internal Overload Protection
Voltage - Phase - Frequency (Hz)
Minimum Circuit Amps
Maximum Overload Amps
Type / Maker
SEER
Total Input Watts
Airflow Rate (CFM)
Cooling Capacity (Btu/h)
Net Sensible Capacity (Btu/h)
Net Latent Capacity (Btu/h)
with Matching Indoor Unit
Model Number
Comments
Model Status
Performance

6
Central Air Conditioning
Model: Con densin g U nit, HC13- D2
8.8 10.2 10.3 11.9 13.5
Number of Circuits (In/Out) 3/3 3/3 4/4 5/5 5/5
Bottle green Bottle green Bottle green Bottle green Bottle green
Stamped sheet metal Stamped sheet metal Stamped sheet metal Stamped sheet metal Stamped sheet metal
Deep Drawn, Elevated Deep Drawn, Elevated Deep Drawn, Elevated Deep Drawn, Elevated Deep Drawn, Elevated
Easy Access Easy Access Easy Access Easy Access Easy Access
Yes Yes Yes Yes Yes
Optional Optional Optional Optional Optional
Optional Optional Optional Optional Optional
Yes Yes Yes Yes Yes
Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Optional Optional Optional Optional Optional
No No No No No
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Optional Optional Optional Optional Optional
No No No No No
No No No No No
Yes Yes Yes Yes Yes
No No No No No
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Height 23 3/8 26 7/8 23 3/8 26 7/8 30 3/8
Width 21 1/2 21 1/2 24 1/4 24 1/4 24 1/4
Depth 21 1/2 21 1/2 24 1/4 24 1/4 24 1/4
6.26 7.19 7.96 9.15 10.34
3/8" 3/8" 3/8" 3/8" 3/8"
3/4" 3/4" 3/4" 7/8" 7/8"
Outdoor above
Indoor Unit 70 70 70 70 70
Dimensions and Installation
Exterior Appearance
Features Lug.
Accessories
Unit
Dimensions
(inches)
Refrigerant
Line
Liquid Line Dimension (In)
Vapor Line Dimension (In)
Max
Refrigeran
Cubic Volume (Cu. Ft)
Compressor Time Delay
Compressor Blanket Kit
Fan Delay Kit (Note 1)
Piston
Corrosion Resistant Outside Screws
Room Thermostat
Start Assist Kit
Low Ambient Kit
High and Low Pressure Switches
Filter Dryer
Full, Reusable Service Valves
Easy Service Access
Coil Design
Fully Enclosed Motor
Removable Top Grill Assembly
Elevated Base Pan
Basepan
Service panel
Body style /
Coil guard
Galvanized Steel Cabinet
Full metal jacket
Wire grill
Plastic mesh
Gross Finned Face Area (Sq Ft)
Cabinet color
Top cover

7
Central Air Conditioning
Notes:
1-
120-second fan delay for air handler
2- R-22 Charge for the outdoor unit with matching indoor unit and 25' line set.
Model: Con densin g U nit, HC13- D2
Indoor above
Outdoor Unit 50 50 50 50 50
Re-usable Re-usable Re-usable Re-usable Re-usable
Sweat Sweat Sweat Sweat Sweat
Piston (057) Piston (062) Orifice (071) Orifice (078) Orifice (083)
R22/84.81 R22/84.81 R22/123.67 R22/137.81 R22/141.34
10" sides/18" service 10" sides/15" service 10" sides/18" service 10" sides/18" service 10" sides/18" service
143 150 176 187 198
158 165 192 202 214
ARI ARI ARI ARI ARI
UL/cUL UL/cUL UL/cUL UL/cUL UL/cUL
Basiloid Basiloid Basiloid Basiloid Basiloid
25 28 1/2 25 28 1/2 32
23 23 26 7/8 26 7/8 26 7/8
23 23 26 7/8 26 7/8 26 7/8
7.66 8.73 10.45 11.92 13.38
55555
55555
In Home In Home In Home In Home In Home
67 67 68 69 69
Agency Approvals
Packaging
Shipping
Noise level dB(A)
Cubic Volume (Cu. Ft)
Parts
Compressor
Carry in/In Home
Performance Certification
Safety Approvals
Carton Type
Carton
Dimensions
Height
Width
Depth
Warranty(Haier Brand Only)
Min Clearances
Weight (lbs) Net
Ship
Service Valves
Refrigerant Connection Type
Metering device (Piston size)
Refrigerant Type / Charge (Oz) (
Note 2 )
t Line
Length (Ft)

8
3. SAFETY PRECAUTIONS
4. SYSTEM COMPONENTS AND FUNCTIONS
This section describes the various air conditioning components, their purpose and operation. This
section is only a guide and does not consider all components that could be found on an air conditioner in
the field.
Fig.4-1
Generally, liquid refrigerant is suspected if valve damage occurs. Some compressors can tolerate the
gas gives it the name of “low-side” shell compressor .
The scroll compressor used a helix (similar in shape to a snail shell)
within a similar stationary helix, the moving helix rotates so that the space between the two constantly
decreases as the gas moves toward the center of the Scrolls. The returning refrigerant gas first cools the
motor, then flows into the suction intake of the compressor scroll. The discharge gas leaves from the
center of the helix and exits the compressor. The lower part of the shell should be cool to the touch.
● Follow the manufacturer’s instructions when making repairs, installing replacement parts and
● Use only authorized factory parts.
● Always use industry-recognized service practices in the maintenance, adjustment and repair of the
products covered in this manual.
● Always wear safety glasses when handling refrigerant and peforming brazing operations.
CAUTION:please read all instructions prior to installing, operating, maintaining or repairing the
product.
WARNING: THE MANUFACTURER’S WARRANTY DOES NOT COVER DAMAGE TO CAUSED BY
THE USE OF ANSUTHORIZED COMPONENTS OR ACCESSORIES, THE USE OF SUCH
UNAUTHORIZED COMPONENTS OR ACCESSORIES MAY ENDANGER LIFE AND
OR INJURY RESULTING FROM THE USE OF SUCH UNAUTHORIZED COMPONENTS OR
PROPERTY. THE MANUFACTURER DISCLAIMS ANY RESPONSIBILITY FOR SUCH LOSS
ACCESSORIES
performing system maintenance.
Current single phase units use two types of compressors. The design of the two compressors types is
to move refrigerant. When paired
motor with low pressure
through proper refrigrant control. Returning refrigerant cools the compressor motor and surrounding the
presence of small amounts of liquid refrigerant in the return gas, but this condition must be avoided
are several different types of compressors, but all use electricity to turn an electric motor to drive a pump.
The heart of any refrigerant system is the compressor. It is a pump that causes refrigerant to flow. There
efficiency is reduced.
and low pressure sides of the system. If the valves are damaged, the compressor’s function and
down in cylinders where valves control the flow of refrigerant. The valves provide a seal between high
the driving force is supplied by an electric motor turning the crankshaft and forcing pistons up and
Central air conditioners use two types of compressors. The first is the enhanced reciprocating compres-
time delays prevent thermostat short cycling and momentary power interruptions from damaging the
compressor.
-case heaters. The reciprocating compressor may need both. Both types benefit from using a time-delay.
quite different. But they function the same way. Scroll units do not need start components or crank
COMPRESSORS (Fig. 4-1)
Central Air Conditioning Model: Condensing Unit, HC13-D2
-sor. it operates with an offset crankshaft and pistons, and resembles an internal combustion engine.
Reciprocating type compressor for HC18/24 F
ff
Reciprocating type compressor for HC30/36/42

9
Fan
Fig.4-2
Fan and motor assembly
Fig4-3
Flow-Check Pistons
refrigerant metering device controlling refrigerant flow into the evaporator. Second, it acts as an open
check valve when refrigerant flows in the opposite direction.
PROPER MATCH OF UNIT AND PISTON SIZES
Combinations for indoor and outdoor units using a distributor and flowcheck are shown in the application
Mismatching indoor and outdoor units of split systems affects performance, efficiency, charging and
reliability.
Distributor assy
Fig.4-4
Both compressor types are protected internally against over-current and over-temperature conditions.
the contactor coil.
FAN AND BLOWER MOTORS (Fig. 4-2 and Fig. 4-3)
The outdoor component of split system contains an fan motor. These PSC (permanent split capacitor)
Some scroll compressors have an additional thermostat mounted externally in series electrically with
motors are single speed and drive a propeller fan. The motor mounts to the unit top with the shaft up,
This fan pulls outdoor air through the outdoor coil.
To access the condenser fan or motor, carefully remove the unit top, a service loop is provided on the
motor wiring for easier access.
METERING DEVICES (Fig. 4-4)
One type of refrigerant metering device is the flow-check piston. It has two functions. First it acts as a
When refrigerant enters the device from the square end, the piston seats and forces all refrigerant throug
h
the carefully sized hole in the center of the piston. This orifice functions as a metering device controlling
the amount of refrigerant flow, with flow in the opposite direction, pressure moves the piston off the seat
and liquid refrigerant flows around the piston.
Using too small a piston starves the coils of refrigerant. A piston that is too large floods coils.
Split air conditioning indoor and outdoor units must be carefully matched to balance the heat transfer
indoors with the heat resected or claimed by the outdoor unit. Manufacturer's
specification sheets and
installation manuals should be followed to insure proper match. Matched systems are listed on the
internet at ARI. ORG.
table 6-2.
Central Air Conditioning Model: Condensing Unit, HC13-D2

Fig.4-5
5.ELECTRICAL CONTROL DEVICES
10
REFRIGERANT CIRCUIT (Fig. 4-5)
All 13SEER units outdoor coils are multi-circuit. Refrigerent gas or liquid is uniformly distributed to from
4 to 10 circuits to improve heat transfer and reduce capacity losses due to pressure drops.
PROTECTION DEVICES
Protection for the unit begins with the installation of appropriate fuses or circuit breakers by the installing
OVERLOADS AND LIMITS
include the automatic reset internal overload in the fan motor and the compressor automatic reset
internal overload. Such controls are not serviceable but their operation may influence service
troubleshooting .For example, the compressor internal overload may stay open for several hours .A
THERMOSTATS
In the cooling mode, the thermostat calls for cooling by energizing the compressor contactor and the
indoor blower control. The indoor blower can operate continuously by setting the thermostat subbase fan
switch to the “ON” position.
subbase selection information found in the wiring diagram booklet.
various manual changeover, auto changeover and set-back thermostats or see the thermostat and
accessible by the consumer. Contact your local distributor for information on part numbers of
Thermostats are the most obvious control in the air conditioning system because these controls are
contractor. Breaker or fuse size is governed by the National Electrical Code and local code. AMP draw
Overloads protect against over-current or over-temperature conditions. Those located in the outdoor unit
requirements for each unit are found in the Specifications.
technician may incorrectly diagnose this as an open compressor winding.
RELAYS
COMPREESSOR CONTACTOR
contacts ,while others use 2-pole or 3-pole contacts.
compressor and outdoor fan.
OPTIONAL DELAYS AND KITS
before re-starting the compressor.
.
The coil uses 24 volts but the contacts carry line voltage .The heater contactor is a large relay,
which controls the compressor and the outdoor fan operation. Some contactor use single pole
Generally relays used in air conditioning use 24VAC coils. Contact voltage may be either low or line voltage.
Relays provide a method for control switching. Relays may switch either low(24VAC) or line voltage.
Single-pole contactors break only one side of the power feed to the compressor and outdoor fan. The other side
remains connected to the power source. The 2-pole or 3-pole contactor breaks power to all sides of the
CAUTION: WHEN THERE IS A SINGLE POLE CONTACTOR, ONE SIDE OF A 240 V.A.C.CIRCUIT
REMAINS HOT. THIS MEANS THAT THE WIRING IN THE HIGH VOLTAGE CIRCUIT MAY HAVE A
POTENTIAL OF 120V.A.C.TO GROUD. BEFORE SERVICING THE UNIT, ALWAYS TURN OFF
POWDER AT THE UNIT DISCONNECT SWITCH.
A Time-Delay in the compressor contactor lowcontrol circuit allows time for system pressure to equalize
This delay uses solid state circuitry to measure the time since the power was interrupted and is set for
approximately 3 minutes. It is not field adjustable. This is a delay on break timer.
Central Air Conditioning Model: Condensing Unit, HC13-D2

11
Compressor delay PCB
Fig.5-1
START KITS(OPTIONAL)
This special relay uses the EMF generated by the compressor start windings to take a start capacitor out
of the circuit. The relay and its companion capacitor can start the compressor at low voltages and
against higher pressure, such as those caused by non-bleed port expansion valves.
compressor make a start kit unnecessary.
Start kit components should match the recommended ratings and functions of those provided by the
Start kits are not normally required with scroll compressors. The operating characteristics of the scroll
reciprocating compressor manufactorer. See Specifications start components.
Before specifying any air conditioning equipment, a survey of the structure and a heat gain calculation
The cooling load calculation determines the unit size. There are two capacities that enable the
must be made. A heat gain calculation involves identifying all surfaces and openings that gain heat from
the surrounding air and quantifying that heat gain. The heat calculation also calculates the extra
heaty load caused by sunlight and by humidity removal. These factors must be considered before
selection an air conditioning system to provide year round comfort. The Air Conditioning Contractors
cooling load.
6. APPLICATION
of America (ACCA) J Manual method of load calculation is one recognized procedure for determining the
Sensible heat is the heat energy
measured on the dry bulb thermometer.
equipment to provide comfort. The first is sensible capacity.
.
After the proper equipment combination has been selected, satisfying both sensible and latent
The second form of heat is called latent heat. This is heat held by the moisture in the air. Removing
this moisture does not affect a thermometer. However, removing the latent heat in the air greatly increase
comfort. A properly sized unit removes both forms of heat, producing a comfortable conditions,
An oversized system cycles on and off quickly and does not properly remove humidify, producing
uncomfortable. The indoor and outdoor equipment combination should be matched by the manufacturer
and based on engineering data.
conditioning requirements, the system must be properly installed. Proper installation with cerefully
distributed air through adequate duct work will provided a comfortable living space.
There are several factors that installers must consider.
● Outdoor unit location
● Proper equipment evacuation
● Outdoor unit refrigerant charge
● Indoor unit air flow
● Indoor unit blower speed
● Supply and return air duct design and sizing
● System air balancing
● Diffuser and return air grille location and sizing
Central Air Conditioning Model: Condensing Unit, HC13-D2

Unit Dimensions
12
The second form of heat is called latent heat. This is heat held by the moisture in the air. Removing
this moisture does not affect a thermometer. However, removing the latent heat in the air greatly increase
comfort. A properly sized unit removes both forms of heat, producing a comfortable conditions,
An oversized system cycles on and off quickly and does not properly remove humidify, producing
uncomfortable. The indoor and outdoor equipment combination should be matched by the manufacturer
There are several factors that installers must consider.
and based on engineering data.
conditioning requirements, the system must be properly installed. Proper installation with cerefully
distributed air through adequate duct work will provided a comfortable living space.
Central Air Conditioner Model: Heat Pump, 13SEER units
and humidity control depend on the correct balance between indoor load and outdoor unit capacity. High
Air conditioning requires a specified air flow. Each ton of air conditioning requires 400 cubic feet of air
per minute (400CFM/TON).
of 3°in the return duct and 4°in the supply duct. This can reduce the cooling capacity of an air
conditioning system by as much as 30%.This means a loss of almost one ton of cooling capacity from a
three ton system.
The air distribution system has the greatest effect. On the quality of the installation and the owner satisfaction,
The correct air quantity is critical for correct air conditioning system. Proper operation, efficiency, compressor life
performance and customer's satisfaction and can cause premature component failure.
Duct design and construction should be done with care. System performance can be lowered
dramatically through bad planning or workmanship. In cooling, a hot attic can cause a temperature gain
the duct system is totally in the responsibility of the contractor. These are numerous thchnical associations
Low indoor air flow reduces total capacity, and can causes coil icing. Improper air balance will affect system
and reference that recommend correct procedures.
indoor air flow reduces system dehumidification capacity, and can leave the space humid and uncomfoltable.
Table 6-1
Piston sizes and indoor fan speed:
Note: the piston is placed in the outdoor unit package box
Table 6-2 Piston size
W(inch[mm]) D(inch[mm]) H(inch[mm])
Unit 21 1/2[547] 21 1/2[547] 23 3/8[595]
Shipping 23[585] 23[585] 25[637]
Unit 21 1/2[547] 21 1/2[547] 26 7/8[683]
Shipping 23[585] 23[585] 28 1/2[725]
Unit 24 1/4[616] 24 1/4[616] 23 3/8[595]
Shipping 26 7/8[682] 26 7/8[682] 25[637]
Unit 24 1/4[616] 24 1/4[616] 26 7/8[683]
Shipping 26 7/8[682] 26 7/8[682] 28 1/2[725]
Unit 24 1/4[616] 24 1/4[616] 30 3/8[771]
Shipping 26 7/8[682] 26 7/8[682] 32[813]
HC36D2VAR
HC42D2VAR
Dimensions
HC18D2VAR
HC24D2VAR
HC30D2VAR
Capacity SEER CFM 80 85 90 95 100 105 110 115
HC18D2VAR HB2400VD1M2
0
057 M 17000 13 670 19210 18649 18020 17000 16745 16490 16235 15980
HC24D2VAR HB2400VD1M2
0
062 H 23000 13 900 25990 25231 24380 23000 22655 22310 21965 21620
HC30D2VAR HB3600VD1M2
2
071 L 29000 13 1125 32770 31813 30740 29000 28565 28130 27695 27260
HC36D2VAR HB3600VD1M2
2
078 H 35000 13 1240 39550 38395 37100 35000 34475 33950 33425 32900
HC42D2VAR HB4800VD1M2
2
083 L 41000 13 1480 46330 44977 43460 41000 40385 39770 39155 38540
Outdoor Indoor
Piston
Size
Indoor
fan
speed
ARI data of indoor Cooling Capacity with different outdoor temperature
Central Air Conditioning Model: Condensing Unit, HC13-D2

Air leakage of only 3% in a return duct can cause a 5% loss in system capacity. 3% leakage on a three
Duct systems installed in the conditioned space can be left uninsulated , but a dense 1/2” fiberglass duct
liner reduces blower and air noises, and prevents sweating ducts when humidity levels are high.
Supply and return duct systems in attics and crawl spaces require a minimum 1” of dense duct liner or 2”
fiberglass wrap with a sealed vapor barrier. A leaky vapor barrier results in duct sweating, causing wet
Air supply diffusers must be selected and located carefully. They must be sized and positioned to deliver
Effective duct insulation is essential to prevent loss of capacity and sweating ducts in the cooling mode.
ton system is only 30 CFM. Two or three unsealed joints can cause a leak of this size. Sealing the return
and supply ducts result in full system capacity and lower operating costs.
Heat transfer through poorly insulated systems can result in over 50%
insulation
does not insulated.
loss in operating capacity. Sweating
ducts also results in rusting that leads to premature duct failure. Carefully follow the industry practices to
insure a well designed duct system.
treated air along the perimeter of the space. If they are too small for their intended air flow, they can be
noisy. If they are not located properly, they can cause drafts in the rooms. Return air grilles must be
properly sized to carry air back to the blower. If they are too small they also cause noise. The installers
ensures a comfortable living space.
should balance the air distribution system to ensure proper air flow to all rooms in the home. This
! WARNING
adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or
These instructions are intended as an aid to qualified, service and instalolation personnel for proper installation
service this equipment. Failure to follow these instructions may result in improper installation,
service or maintenance and could possibly result in fire, electrical shock, property damage.
.
This product is designed and manufactured to permit installation in accordance with National Codes. It is
prevailing local codes and regulations. The manufacturer assumes no responsibility for equipment
installed in violation of any codes or regulations.
The United States Environmental Protection Agency (EPA) has issued various regulations
may harm the environment and can lead to the imposition of substantial fines. Because these regulations
regarding the introduction and disposal of refrigerants from this unit. Failure to follow these regulations
the installer's responsibility to install the product in accordance with National Codes and/or
are subject to revision any repair on this unit should be done by a certified technician.
Central Air Conditioning Model: Condensing Unit, HC13-D2
7. REFRIGERANT SYSTEM DIAGRAM
8. INSTALLATION INSTRUCTIONS

14
If the unit is to be installed in an area where contaminants are likely to be a problem, special attention
should be given to the equipment location and exposure.
Avoid having lawn sprinkler heads spray directly on the unit cabinet.
In coastal areas, locate the unit on the side of the building away from the waterfront.
Shielding provided by fence or shrubs may give some protection.
Regular maintenance will reduce the buildup of contaminants and help to protect the unit's finish.
! WARNING- Disconnect all electrical power to the unit before servicing. Disconnect power to both the
Structural strength of supporting members.
the installer's responsibility to insure that the unit is installed in accordance with all local codes.
Clearances and provision for servicing.
(1) Frequent washing of the cabinet, fan blade and coil with fresh water.
Check the following points before begining any installation:
(2) Regular cleaning and waxing of the cabinet with automobile wax.
(3) An appropriate coil cleaner may be used once per year to remove matter that will not wash off
These units are designed for outdoor installation. They can be mounted on a slab or rooftop. It is
with water.
indoor and outdoor units.
NOTE: There may be more than one electrical disconnect switch. Failure to shut off power can cause
electrical shock resulting in personal injury or death.
The best protection is frequent cleaning and avoiding exposure to debris that blocks airflow.
Power supply and wiring.
Provide gutters or other shielding at roof level.
Locate unit on a level concrete slab or prefabricate pad. To prevent transmission of noise or vibration,
slab should not be connected to building structure. Some sort of sound-absorbing material such as
rubber and cork pad should be placed between the condenser and the slab.
Consideration be given so that operating sounds will not disturb owner or neighbors.
Location with no risk of combustible gas leakage.
Location where natural water drainage does not collect around the unit.
Location where roof runoff does not pour directly on the unit.
Avdid locating the unit in an area where excessive snow can accomulate or drifting occur.
Central Air Conditioning Model: Condensing Unit, HC13-D2
You should be aware that the use of unauthorized components, accessories or devices may
adversely affect the operation of the air
conditioner and may also endanger life and property.
The manufacturer disclaims any responsibility
The manufacturer's warranty does not cover any damage failure caused by the air conditioning system.
components, accessories or devices.
for loss or injury due to the use of such unauthorized
Attach the service panel to the outdoor unit after to prevent.
If the service panel is not attached securely, it could result in a fire or an electric shock due to dust,
water, etc.
refineries are especially corrosive.
This product has been inspected at the factory and released for shipment without known damage. Inspect
oxidation could shorten the unit life. Salt spray or mist in seacoast areas, sulphur or chlorine from lawn
The metal parts of the unit may be subject to rust or corrosion in adverse environmental conditions. This
exterior of carton for evidence of rough handling in shipment. Unpack carefully. If damage is found,
watering systems and various chemical contaminants from industries such as paper mills and petroleum
report immediately to you distributor or the transportation agency.
8.1 OUTDOOR UNIT INSPECTION
8.2 EQUIPMENT PROTECTION FROM ENVIRONMENT
8.3 INSTALLATION

15
minimum of 36" clearance and provision made to deflect the warm discharge air out from the overhang.
from the service access area. A typical application will find the unit located about 10" from wall with
discharges upward from the top of the unit. Refrigerant line and electrical connections are made
connection side facing this wall. This application minimizes exposed tubing and wiring and minimizes
the traffic around the unit reducing subsequent damage to the installation.
The minimum clearances for the unit are shown in Fig. 8--1. Condenser air enters from all (4) sides. Air
For service access to the compressor and control box, allow 18" minimum clearance. Ensure top
In order to maintain design air flow, owners should be advised to avoid lawn clippings from depositing
When necessary for confined applications, provide a minimum of 10" clearance on all air inlet sides.
discharged free from unobstructions. If units must be located under an overhang, there should be a
on the fin coil surface and reducing the system performance.
1.
FigureA FigureB
Properly sized and installed refrigerant piping is very important for the efficient operation of the air
conditioning system.
Note the following guidelines:
The total run, both vertical and horizontal, should be less than 50 feet or line size correction may
be necessary.
2. If the vertical separation exceeds 10 feet use the next larger liquid line size .
WHEN INDOOR UNIT IS 4 FEET OR
MORE BELOW OUTDOOR UNIT, A
SUCTION LINE OIL TRAP IS REQUIRED.
PROVDE ADDITIONAL TRAPS FOR
EVERY 20 FEET OF LIFT.
Central Air Conditioning Model: Condensing Unit, HC13-D2
For rooftop application, make sure the building construction can support the weight and that proper
consideration is given to the weather-tight integrity of the roof. The condensing unit contains moving
! WARNING - Install the unit securely in a place that can bear the weight of the unit. When installed in
an insufficiently strong place, the unit could fall causing injury.
parts and can vibrate, so, sound transmission is also a consideration in rooftop applications.
8.4.UNIT CLEARANCES
8.5 REFRIGERANT PIPING
Fig. 8--1

FigureC
Fig.
16
Only refrigeration-grade copper piping (dehydrated and sealed) should be used. Take extreme care to
Refrigerant piping should be as short as possible, with a minimum of elbows or bends, to avoid capacity
allow the strapping to directly contact the tubing. Use a closed cell insulation to separate the strapping
from the tubing. Do not kink or twist the tubing.
Refrigerant piping should not be installed in a cement slab, as this limits access to the refrigerant should
a leak be suspected.
Note: To ensure good oil return to the compressor, it is important to pitch the horizontal suction
line toward the compressor, approximately 1/2" for every 10' of line.
keep the refrigerant tubing clean and dry prior to and during installation. If there is any doubt on the
loss and increased operating costs.
cleaness of the piping, blow out the line with dry nitrogen to remove any chips or debris before connection
Refrigerant lines must be adequately supported. If metal strapping is used to secure the tubing, do not
are made. Always keep tubing sealed until the connections are to be made.
.
In severe applications (hot, high humidity areas) greater thickness may be required. Apply the suction line
Suction line must be insulated in order to prevent condensation from forming on the piping and to reduce
insulation by sliding it on the sealed tubing before cutting and making connections
heat gain from the surrounding air. Generally 3/8" wall thickness of Armaflex or equivalent is satisfactory.
.
Refrigerant Line Sizing
unit size and the maximum refrigerant line length.
such as kitchens, boiler rooms, hot attics or on the roof, then, they should be insulated as well.
Liquid lines do not necessarily need insulation, however, if they are run in high ambient spaces
Make sure to use proper size copper tubing for the liquid line to prevent liquid refrigerant flashing.
Keep the vapor line and liquid line seperated. To prevent an undesirable heat transfer and capacity
loss.
Central Air Conditioning Model: Condensing Unit, HC13-D2
8.6 LINE INSULATION
8-2
Check the following table (Table 8-1) for correct suction and liquid line sizes for any combination of the

Refrigerant Line Sizing
Refrigerant Line Length (Ft)
0 – 24 25 – 49 50 – 74
Line Outside Diameter (In)
Unit Size
(Ton)
Suction Liquid Suction Liquid Suction Liquid
1.5 3/4 3/8 3/4 3/8 7/81/2
2.0 3/4 3/8 3/4 3/8 7/81/2
2.5 3/4 3/8 3/4 3/8 7/81/2
3.0 3/43/8 3/43/8 7/8 1/2
3.5 7/8 3/8 11/8 3/8 11/8 1/2
4.0 7/8 3/8 11/8 3/8 11/8 1/2
5.0 7/8 3/8 11/8 3/8 11/8 1/2
The factory charge is sufficient for 25 feet of standard liquid line. For longer or shorter liquid line
lengths, adjust the charge as follows:
1/4" Line +/- 0.3 oz. Per foot
5/16" Line +/- 0.4 oz. Per foot
3/8" Line +/- 0.6 oz. Per foot
1/2" Line +/- 1.2 oz. Per foot.
Vertical Separation between Indoor and Outdoor Units
Maximum allowable vertical separations between indoor and outdoor units are illustrated in Fig.
To ensure good oil return to the compressor when the indoor unit is below the outdoor unit,
17
fittings, as there is pressure present. A fitting is on the liquid line to remove pressure.
unit liquid and suction valves are closed to contain the charge within the unit. Do not force the valve
stem against the retaining ring. If the valve stem is backed out past the retaining ring, system pressure
could force the valve stem out of the valve body and possibly cause personal injury.
Interconnecting piping
! CAUTION - Use caution when removing the service valves caps from the suction and liquid line
! CAUTION - Condensing units ship from the factory with an operating refrigerant charge. Heat pump
Instructions on the interconnecting piping and valve opening procedure are listed below:
1.Tubing should be cut square. Make sure it is round and free of burrs at the connecting ends. Clean the
tubing to prevent contamination from entering the system.
2.Make sure that both refrigerant shutoff valves at the outdoor unit are closed.
3.Push the tubing into the fitting until it stops. This prevents flux from getting into the system.
4.Remove the cap and Schrader valve core from the service port to protect the valve seals.
5.Wrap a wet rag around the valve stub before brazing.
7.After brazing quench with a wet rag to cool the joint. Reinstall the Schrader core in the valve, if
removed for brazing.
6. Braze the joints of interconnecting piping. purge piping with dry nitrogen through the shutoff valve port
while brazing.
Central Air Conditioning Model: Condensing Unit, HC13-D2
8-2-C and Fig. 8-2-B. It's 70' when the indoor unit is below the outdoor unit (Fig.8-3-B), and 50'
suction line oil trap should be used as illustrated in Fig. 8-2-B.
when the indoor unit is above the outdoor unit (Fig. 8-2-B) .C
Table 8-1

18
8.Pressurize the lines to 150 psi maximum with dry nitrogen. Check for leaks at all joints with liquid
detergent. If a leak is found, repair it after removing the nitrogen. Repeat the process and re-check.
Evacuation
power consumption and reduces performance. The presence of moisture in a system leads to premature
1.Connect vacuum pump to both liquid and suction valve service ports.
discontinue evacuation, pressurize and check for leaks. Repair any leaks found and repeat the step 2.
3.Close valve to the vacuum pump and stop pump.
9.Do not purge the lines with refrigerant.
All refrigerant systems must be evacuated to a deep vacuum to remove all noncondensible gases and
moisture prior to charging the system. Air in a system increases condensing pressure, which increases
failure. Proper evacuation assures a dry, uncontaminated system.
Recommended Evacuation Procedure:
2.Evacuate the interconnecting tubing and indoor coil to a level of 500 microns or less or for a minimum of 30
minutes. Close the valve to the vacuum pump and wait 15 minutes. The vacuum should not rise above 800
microns. If unable to obtain 500 microns, or vacuum rises above 800 microns after a 15 minutes period,
4.When sure of a tight, well evacuated system, charge with refrigerant.
(For systems with capillary tube or fixed orifice metering device)
! WARNING - Do not vent refrigerant to the atmosphere! It is a violation of federal law to do so. If
or recycling device.
.
1.Fully open both shutoff valves.
2.Connect service gage manifold to the valve service ports, being sure to evacuate lines.
3.Startup the system. Run system at least 10 minutes to allow pressure to stabilize.
between thermometer and line. Wrap thermometer with insulating material to assure accurate reading.
for proper system superheat. Add charge to lower superheat. Remove charge to
raise superheat. Carefully remove guage.
Before checking the system charge, make sure that the outdoor unit and indoor coil are an approved
match system. For best result, the indoor conditions should be within 2 F of the desired comfort conditions.
the refrigerant needs to be removed from a system to correct the system charge, always use a recovery
4.Temporarily install a thermometer on the vapor line near outdoor unit. Be sure of good contact
! WARNING - Service refrigerant carefully, high pressure are present.
Central Air Conditioning Model: Condensing Unit, HC13-D2
8.7 Charging the System
5.Refer to Table 8-2

System Superheat
Return Air Temperature ( )℉Ambient
Temperature At
Condenser Inlet
()℉
65 70 75 80 85
60 17 25 30 33 37
65 13 19 26 32 35
70 5 14 20 28 32
75 5 10 17 25 29
80 5 12 21 26
85 5 10 17 20
90 7 12 18
95 5 5 5
100 5 5
.
19
! WARNING
A means of strain relief must be installed to this appliance at the electrical service entrance.
The interconnecting wires between indoor and outdoor units must be in accordance with the national
electric code and all code regulations. Failure to follow these codes or the use of unsupported practices
or procedures, could result in damage or personal injury or death.
Do not use temporary power cordsand do not connect multiple devices to the same electric
circuit. Such could cause a fire or an electric shock due to circuit overloads.
All electrical work should be performed by knowledgeable personals according to national
codes, and in accordance with this installation manual.
Ground the unit. According to the national electric code.
Electrical installation consists of power supply wiring to the condensing unit and control wiring between
thermostat, indoor unit and the condensing unit. All wiring must be in accordance with National
Electrical Code and/or local ordinances that may apply.
(See unit wiring diagram furnished with this instruction).
The condensing unit rating plate and the tables of "Physical and Electrical Specifications /
Outdoor Units"
(Table 2-1 and 2-2) provide pertinent data necessary for the selection of proper
ampacity.
size electrical service and
over-current protection devices.
Central Air Conditioning Model: Condensing Unit, HC13-D2
Table 8-2:System charging table by superheat
8.8 ELECTRICAL WIRING
Table 8-3 provides data on the minimum copper wire size as a function of supply wire length and circuit

100 Ampacity.
Copper Wire Size - AWG
(1%VoltageDrop)
Supply Wire Length - FtSupply Circuit
Ampacity 50 100 150 200
15 14 10 8 6
20 12 8 6 4
25 10 8 6 4
30 10 64 4
35 8 6 4 3
40 8 6 4 2
45 6 4 3 2
50 6 4 3 1
20
The installer must be familiar with the location of the over-current protection, properly size for this
this application and the proper procedure for disconnecting power service to the unit.
transformer as shown on the wiring diagram.
The outdoor unit control wiring requires a 24 Volt minimum, 25 VA service from the indoor
The location of the disconnect device must be in accordance with local codes.
1.Turn thermostat to "OFF", turn on power supply at disconnect switch.
3.Turn fan switch to "ON". Indoor blower should run. Be sure it is running in the right direction.
4.Turn fan switch to "AUTO". Turn system switch to "COOL" and turn temperature setting below
room temperature. Unit should run in cooling mode.
6.Check the refrigerant charge (see Instructions under "Charging the System").
7.Replace service port caps. Service port cores are for system access only and will leak if
not tightly capped.
9.Instruct the owner on operation and maintenance.
Leave this "Installation and Operating Manual" and the "Use and Care Manual" with owner.
8.Check unit for tubing and sheet metal rattles.
2.Turn temperature setting above the room temperature.
5.Check to see if compressor and outdoor fan are running correctly.
SEQUENCE OF OPERATION
COOLING CYCLE
1.
2. The vapor leaves the compressor and passes through the reversing valve.
4.
In order to service and troubleshoot a air conditioning system, The service technician must
understand the system’s sequence of operation. This is the order of events the system undergoes in
response to. Understanding the sequence of operation aid in determining where to start troubleshooting
when the unit doesn’t operate properly. Deviation from the normal operation sequence will provide
3. The vapor flows through the outdoor vapor line to the finned outdoor coil. Air from the outdoor
clues to system problems.
Mechanical.The operation sequence is as follows:
fan removes heat from the refrigerant vapor. When enough heat is removed, the vapor
condenses into a high pressure liquid.The liquid temperature leaving the outdoor coil is slightly
This warm, high pressure liquid leaves the outdoor coil, and flows through the small copper
The compressor provides high pressure, superheated refrigerant vapor.
warmer than ambient air temperature.
Central Air Conditioning Model: Condensing Unit, HC13-D2
Table8-3: Minimum Wire Size Based on N.E.C. for 60 C Type Copper Conductors Below
8.9 SYSTEM STARTUP
8.10 OPERATION