Wolf Steel 13 SEER User manual

INSTALLATIONINSTRUCTIONS
SplitSystemAirConditioner
ARNING
These instructions are intended as an aid to qualified
licensed service personnel for proper installation, adjust-
ment and operation of this unit. Read these instructions
thoroughly before attempting installation or operation.
Failure to follow these instructions may result in improper
installation, adjustment, service or maintenance possibly
resulting in fire, electrical shock, property damage,
personal injury or death.
RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION
DO NOT DESTROY THIS MANUAL
Please read carefully and keep in a safe place for future reference by a serviceman.
1.5-5Tons
NOTE: Appearance of unit may vary.
13 SEER
R410A
Wolf SteelLtd.
24 Napoleon Road, Barrie, Ontario Canada, L4M0G8
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TABLEOF CONTENTS
1.0SAFETY..................................................................................................................3
1.1 INSPECTION....................................................................................................4
1.2 LIMITATIONS....................................................................................................4
2.0GENERAL..............................................................................................................4
3.0UNITINSTALLATION............................................................................................6
3.1 LOCATION.......................................................................................................6
3.2 GROUND INSTALLATION...............................................................................6
3.3 ROOF INSTALLATION.....................................................................................6
3.4 UNIT PLACEMENT..........................................................................................6
3.5 UNIT MOUNTING............................................................................................7
3.6 FACTORY-PREFERRED TIE-DON METHOD.............................................8
3.7 PRECAUTIONS DURING LINE INSTALLATION.............................................9
3.8 PRECAUTIONS DURING BRAZING OF LINES.............................................10
3.9 PRECAUTIONS DURING BRAZING SERVICE VALVE.................................10
4.0INTERCONNECTINGTUBING............................................................................12
4.1 SUCTION AND LIQUID LINES .....................................................................12
4.2 MAXIMUM LENGTH OF LINES ....................................................................12
4.3 VERTICAL LIFT ............................................................................................12
5.0EVACUATION......................................................................................................12
6.0ELECTRICALCONNECTIONS...........................................................................14
6.1 GENERAL INFORMATION & GROUNDING .................................................14
6.2 FIELD CONNECTIONS POER IRING ....................................................14
6.3 REMOVING THE TOP PANEL AND MOTOR................................................15
7.0CHECKINGREFRIGERANTCHARGE..............................................................15
7.1 CHARGING BY LIQUID PRESSURE............................................................15
7.2 CHARGING BY EIGHT ..............................................................................16
7.3 FINAL LEAK TESTING .................................................................................16
8.0WARRANTY.........................................................................................................16
9.0WIRINGDIAGRAM..............................................................................................17
2
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1.0SAFETY
This is a safety alert symbol. hen you see this symbol on labels or in
manuals, be alert to the potential for personal injury.
Understand and pay particular attention to the signal words DANGER, ARNING, or
CAUTION.
DANGER indicates an imminently hazardous situation, which, if not avoided, will result
in death or serious injury.
ARNING indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not avoided may result
in minor or moderate injury. It is also used to alert against unsafe practices and hazards
involving only property damage.
This is an attention alert symbol. hen you see this symbol on labels or in
manuals, be alert to the potential for personal injury.
This document is customerpropertyand istoremainwith this unit.
Theseinstructionsdo not coverall thedifferent variationsofsystemsnordoes
itprovideforeverypossible contingency to bemetinconnectionwithinstalla-
tion.
All phasesof this installation mustcomply with NATIONAL,STATE,ANDLOCAL
CODES.Ifadditionalinformation isrequiredplease contactyourlocal distribu-
tor.
3
WARNING
Improper installation may create a condition where the operation of the product
could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or maintenance can cause
injury or property damage. Refer to this manual for assistance or for additional
information, consult a qualified contractor, installer or service agency.
CAUTION
This product must be installed in strict compliance with the installation instruc-
tions and any applicable local, state, and national codes including, but not
limited to building, electrical, and mechanical codes.
WARNING
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious injury, death
or property damage.
A fire or electrical hazard may result causing property damage, personal injury
or loss of life.
CAUTION
If using existing refrigerant lines make certain that all joints are brazed, not
soldered.
CAUTION
Scroll compressor dome temperatures may be hot. Do not touch the top of com-
pressor; it may cause minor to severe burning.
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The outdoor units are designed to be connected to a matching indoor coil with braze
connect lines. Units are factory charged with refrigerant for a matching indoor coil
plus 15 feet of field supplied lines.
Matching indoor coils are available with a thermostatic expansion valve or an orifice
for the most common usage. The orifice size and/or refrigerant charge may need to
be changed for some indoor-outdoor unit combinations, elevation differences or
total line lengths.
2.0GENERAL
1.Limitations for the indoor unit, coil and appropriate accessories must also be observed.
2.The outdoor unit must not be installed with any duct work in the air stream. The outdoor fan is
the propeller type and is not designed to operate against any additional external static
pressure.
3.The maximum and minimum conditions for operation must be observed to assure a system
that will give maximum performance with minimum service.
4.This unit is not designed to operate with a low ambient kit. Do not modify the control system
to operate with any kind of Iow ambient kit.
5.The maximum allowable line length for this product is 150 feet (Just for scroll compressor).
1.2LIMITATIONS
The unit should be installed in accordance with all National, State, and Local Safety
Codes and the limitations listed below:
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 delivery
receipt. A separate request for inspection by the carrier's agent should be made in
writing. See Local distributor for more information.
1.1INSPECTION
4
Requirements For Installing/Servicing R410A Equipment
Gauge sets, hoses, refrigerant containers, and recovery system must be designed
to handle the POE or PVE type oils.
Manifold sets should be 800 PSIG high side and 250 PSIG low side with 550 PSIG
Iow side restart.
All hoses must have a 700 PSIG service pressure rating.
Leak detectors should be designed to detect R410A.
Recovery equipment (including refrigerant recovery containers) must be specifi-
cally designed to handle R410A.
Donot useanR-22TXV.
Good Refrigeration practices require the installation of a field supplied liquid line
drier, as shown in Fig.1.
Fig.1 Filter-Drier installation
LIQUID-LINE FILTER-DRIER
It will be more convenient to open
the Service valve after removing
the Underside Clapboard.
NOTE
：
LARGE SERVICE VALVE
SMALL SERVICE VALVE
FIELD SUPPLIED AND INSTALLED
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5
DIMENSIONAL DATA
"H" in. [mm] "" in. [mm] "L" in. [mm] Liquid in. Suction in.
23-5/8[600] 23-5/8[600]
28[710] 28[710]
36 23-5/8[600] 23-5/8[600]
42 33-3/16[843] 29-1/8[740]
28[710]
29-1/8[740]
28[710]
48
7/8
MODEL SIZE Dimensions (Inches) Refrigerant Connection
Service Valve Size
29-7/8[759]
60 29-1/8[740] 29-1/8[740] 7/8 33-3/16[843]
24-15/16[633]
21-7/8[554] 21-7/8[554] 3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/4
3/4
3/4
3/4
3/4
24-15/16[633]
24-15/16[633]
24-15/16[633]
24
18
30
FIG.2 DIMENSIONS
SUCTION LINE
CONNECTION
CONTROL IRING
7/8” (22.2mm)
KNOCKOUT
1-11/32” (34.5mm)
LIQUID LINE
CONNECTION
SERVICE
FITTING
SERVICE
FITTING
POER IRING
SEE DETAIL A
DETAIL A
HOLE
1-3/32” (27.8mm)
NOTE: GRILL APPEARANCE
MAY VARY.
AIRDISCHARGE: ALLO 60”
MINIMUM CLEARANCE.
SERVICEACCESS
ALLO 24” CLEARANCE
AIRINLETS
LOUVERED PANELS
ALLO 18”
MINIMUM
CLEARANCE
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3.0UNIT INSTALLATION
3.1LOCATION
Before starting the installation, select and check the suitability of the location for both
the indoor and outdoor unit. Observe all limitations and clearance requirements. The
outdoor unit must have sufficient clearance for air entrance to the condenser coil, for air
discharge and for service access. See Fig.2
NOTE
For multiple unit installations, units must be spaced a minimum of 18 inches
apart. (Coil face to coil face.)
If the unit is to be installed on a hot sun exposed roof or a black-topped ground area, the
unit should be raised sufficiently above the roof or ground to avoid taking the accumu-
lated layer of hot air into the outdoor unit.
Provide an adequate structural support.
WARNING
The outdoor unit should not be installed in an area where mud or ice could cause
personal injury or system damage.
Elevate the unit sufficiently to prevent any blockage of the air entrances by snow in
areas where there will be snow accumulation. Check the local weather bureau for the
expected snow accumulation in your area. Isolate the unit from rain gutters to avoid any
possible wash out of the foundation.
hen installing units on a roof, the structure must be capable of supporting the total
weight of the unit, including a padded frame unit, rails, etc., which should be used to
minimize the transmission of sound or vibration into the conditioned space.
3.3ROOFINSTALLATION
3.4UNITPLACEMENT
1. Provide a base in the pre-determined location.
2. Remove the shipping carton and inspect for possible damage.
3. Compressor tie-down nuts should remain tightened.
4. Position the unit on the base provided.
The unit may be installed at ground level on a solid base that will not shift or settle, caus-
ing strain on the refrigerant lines and possible leaks. Maintain the clearances shown in
Fig.2 and install the unit in a level position.
3.2GROUND INSTALLATION
Normal operating sound levels may be objectionable if the unit is placed directly under
windows of certain rooms (bedrooms, study, etc.).
Top of unit discharge area must be unrestricted for at least 60 inches above the unit.
6
CAUTION
This system uses R410A refrigerant which operates at higher pressure than
R-22. No other refrigerant may be used in this system. Gauge sets, hoses,
refrigerant containers, and recovery system must be designed to handle
R410A. If you are unsure, consult the equipment manufacturer.
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The outdoor unit must be connected to the indoor coil using field supplied refrigerant
grade copper tubing that is internally clean and dry. Units should be installed only with
the tubing sizes for approved system combinations. The refrigerant charge shown in
the nameplate is for standard size interconnecting liquid line lengths up to 15 feet.
NOTE
Using a larger than specified line size could result in oil return problems. Using a
too small line will result in loss of capacity and other problems caused by insuffi-
cient refrigerant flow. Slope horizontal suction lines at least 1" every 20 feet
toward the outdoor unit to facilitate proper oil return.
7
3.5UNITMOUNTING
2 . If elevating a unit on a flat roof , use 4”× 4”(or equivalent) stringers
positioned to distribute unit weight evenly and prevent noise and vibration (See Fig.3).
NOTE:Do notblock drain openingsshownin Fig.3.
3. If unit must be elevated because of anticipated snow fall, secure unit and
elevating stand such that unit and/or stand will not tip over or fall off.
If elevating the heat pump, either on a flat roof or on a slab, observe the following guidelines.
1. The base pan provided elevates the heat pump 2” above the base pad.
NOTE:To tiedown unit, see 3.6.
Fig.3 RECOMMENDED ELEVATED INSTALLATION
ELEVATION ABOVE ANTICIPATED
SNO IS NECESSARY
BASE PAD
(CONCRETE OR
OTHER SUITABLE
MATERIAL)
BASE PAN (BOTTOM VIE) DO NOT
OBSTRUCT DRAIN HOLES
(SHADED)
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8
3.6FACTORY-PREFERRED TIE-DOWNMETHOD
Step 3: Using field supplied L-shaped bracket to locate holes on concrete and drill pilot
holes which is at least 1/4” deeper than fastener being used.
IMPORTANT
Self drilling screws to base pan should not exceed 3/8” long to avoid damaging
coil.
Step 4: Using conventional practices to install brackets, tighten concrete fasteners and
self-tapping screws (See Fig.4).
NOTE: 1. One bracket for each side. For extra stability, 2 brackets for each side.
2. Do not over-tighten the concrete fastener to avoid weakening the concrete.
Step 1: Prior to installing clear pad of debris.
IMPORTANT
Then cement pad must meet local codes and must be the proper thickness to
accommodate fasteners.
Step 2: Center and level unit onto pad.
IMPORTANTNOTE:
These instructions are intended to provide a method to tie-down system to cement slab
as a securing procedure for high wind areas. It is recommended to check Local Codes
for tie-down methods and protocols.
REQUIRED PARTS LIST
SEE DETAIL B
#7 X 3/8” Self Tapping Screws
(Don’t Exceed 3/8” long)
1/4” Χ 1-1/2” Hex asher Head Concrete Screws
(3/16” Pilot Hole Needed. Pilot Hole Should Be1/4” Deeper
Than The Fastener Embedment)
Fig.4 PREFERRED TIE-DON METHOD
DETAIL B
Brackets:
2” width, 1/16” thickness,
height as required.
Available from distributor
or in market place.
The dimension see FIG.2
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1. Install the lines with as few bends as possible. Care must be taken not to damage
the couplings or kink the tubing. Use clean hard drawn copper tubing where no
appreciable amount of bending around obstruction is necessary, if soft copper must
be used, care must be taken to avoid sharp bends which may cause a restriction.
2. The lines should be installed so that they will not obstruct service access to the coil,
air handling system or filter.
3.7PRECAUTIONS DURING LINEINSTALLATION
3. Care must also be taken to isolate the refrigerant lines to minimize noise transmis-
sion from the equipment to the structure.
4. The suction line must be insulated. Tape and suspend the refrigerant lines as shown.
DO NOT allow tube metal-to-metal contact. See Fig.5.
5. Use PVC piping as a conduit for all underground installations as shown in Fig.6.
Buried lines should be kept as short as possible to minimize the build up of liquid
refrigerant in the suction line during long periods of shutdown.
6. Pack a sealing material such as perma gum around refrigerant lines where they
penetrate a wall to reduce vibration and to retain some flexibility.
Insulated Liquid Line
Tape
Sheet Metal Hanger
optional
Suggested
Incorrect
Fig.5 Tubing Hanger
Fig.6 Underground Installation
9
Insulated Suction Line
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All outdoor unit and evaporator coil connections are copper-to-copper and should be
brazed with a phosphorous-copper alloy material such as Silfos-5 or equivalent. DO
NOT use soft solder. The outdoor units have reusable service valves on both the liquid
and suction connections. The total system refrigerant charge is retained within the
outdoor unit during shipping and installation. The reusable service valves are provided
to evacuate and charge per this instruction.
Serious service problems can be avoided by taking adequate precautions to assure an
internally clean and dry system.
3.8PRECAUTIONSDURING BRAZING OFLINES
CAUTION
Dry nitrogen should always be supplied through the tubing while it is being
brazed, because the temperature required is high enough to cause oxidation
of the copper unless an inert atmosphere is provide. The flow of dry nitrogen
should continue until the joint has cooled. Always use a pressure regulator
and safety valve to insure that only low pressure dry nitrogen is introduced into
the tubing.Only a small flow is necessary to displace air and prevent oxidation.
Precautions should be taken to prevent heat damage to service valve by wrapping a wet
rag around it as shown in Fig.8. Also, protect all painted surfaces, insulation, during
brazing. After brazing cool joint with wet rag.
3.9PRECAUTIONS DURING BRAZING SERVICEVALVE
The valve can be opened by removing the plunger cap and fully inserting a hex wrench
into the stem and backing out counter-clockwise until valve stem just touches the cham-
fered retaining wall.
10
Fig.7 Typical Installation
TO
INDOOR
BLOER
TO
PO ER
SUPPLY
TO
COIL
EATHERPROOF
DISCONNECT
SITCH
Seal opening(s) with
permagum or equivalent
NOTE:All outdoor wiring must be weather proof
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1. Remove the cap and Schrader core from both the liquid and suction service valve
service ports at the outdoor unit. Connect Iow pressure nitrogen to the liquid line
service port.
Connect the refrigerant lines using the following procedure:
2. Braze the liquid line to the liquid valve at the outdoor unit. Be sure to wrap the valve
body with a wet rag. Allow the nitrogen to continue flowing. Refer to the Tabular Data
Sheet for proper liquid line sizing.
3. Carefully remove the rubber plugs from the evaporator liquid and suction connections
at the indoor coil.
4. Braze the liquid line to the evaporator liquid connection. Nitrogen should be flowing
through the evaporator coil.
5. Slide the plastic cap away from the suction connection at the indoor coil. Braze the
suction line to the evaporator suction connection. Refer to the Table 1 for proper
suction line sizing.
6. Protect the suction valve with a wet rag and braze the suction line connection to the
outdoor unit. The nitrogen flow should be exiting the system from the suction service
port connection. After this connection has cooled, remove the nitrogen source from
the liquid fitting service port.
7. Replace the Schrader core in the liquid and suction valves.
8. Leak test all refrigerant piping connections including the service port flare caps to be
sure they are leak tight. DONOT OVERTIGHTEN (between40 and 60inch-lbs.
maximum).
9. Evacuate the suction line, evaporator, and the liquid line, to 350 microns or less.
Table 1: Recommended Liquid and Suction Tube Diameters (ln.)
MODEL SIZE
LIQUID SUCTION
Tube Diameter Tube Diameter
18 3/8 3/4
24 3/8 3/4
30 3/8 3/4
36 3/8 3/4
42 3/8
48 3/8
60 3/8 7/8
11
3/4
7/8
Fig.8 Heat Protection
service valve
wet rag
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10. Replace cap on service ports. Do not remove the flare caps from the service ports
except when necessary for servicing the system.
11. Release the refrigerant charge into the system. Open both the liquid and suction
valves by removing the plunger cap and with an hex wrench back out counter
-clockwise until valve stem just touches the chamfered retaining wall.
12. Replace plunger cap finger tight, then tighten an additional 1/12 turn (1/2 hex flat).
Cap must be replaced to prevent leaks.
WARNING
Never attempt to repair any brazed connections while the system is under pres-
sure. Personal injury could result.
See "System Charge" section for checking and recording system charge.
12
It will be necessary to evacuate the system to 350 microns or less. If a leak is
suspected, leak test with dry nitrogen to locate the leak. Repair the leak and test again.
To verify that the system has no leaks, simply close the valve to the vacuum pump
suction to isolate the pump and hold the system under vacuum. atch the micron
gauge for a few minutes. If the micron gauge indicates a steady and continuous rise,
it's an indication of a leak. If the gauge shows a rise, then levels off after a few minutes
and remains fairly constant, its an indication that the system is leak free but still
contains moisture and may require further evacuation if the reading is above 350
microns.
5.0EVACUATION
4.0INTERCONNECTINGTUBING
4.1SUCTION AND LIQUIDLINES
Keep all lines sealed until connection is made.
Make connections at the indoor coil first.
Refer to Li ne Size Information in Ta bles 2 and 3 for correct size and multipliers to be
used to determine capacity for various suction line diameters and lengths of run. The
losses due to the lines being exposed to outdoor conditions are not included.
The factory refrigerant charge in the outdoor unit is sufficient for 15 feet of standard
size interconnecting liquid line. Calculate actual charge required with installed liquid
line size and length as below.
1/4” ± .2 oz. per foot
5/16” ± .4 oz. per foot
3/8” ± .6 oz . per foot
1/2” ± 1.2 oz . per foot
4.2MAXIMUM LENGTH OFLINES
T h e maximum length of interconnecting line is 150 feet (Just for scroll compressor) .
Always use the shortest length possible with a minimu m number of bends.
NOTE: Excessively long refrigerant lines cause loss of equipment capacity.
4.3VERTICALLIFT
Keep the vertical lift to a minimum. Use the following guidelines when installing
the unit:
1. DO NOT exceed the vertical lift as indicated on Table 3.
2. It is recommended to use the smallest liquid line size permitted to minimize sys -
t
em charge which will maximize compressor reliability.
3. Table 3
may be used for sizing horizontal runs.
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TABLE 3 :LIQUID LINE SIZE (R410A)
TABLE 2: SUCTION LINE LENGTH/SIZE VS CAPACITY MULTIPLIER(R410A)
1 1/2 Ton 2 Ton 2 1/2 Ton 3 Ton 3 1/2 Ton 4 Ton 5 Ton
3/4" O.D. 3/4" O.D. 3/4" O.D. 3/4" O.D. 3/4" O.D. 7/8" O.D. 7/8" O.D.
5/8 Opt. 5/8 Opt. 5/8 Opt. 5/8 Opt. 5/8 Opt. 3/4 Opt. 1 1/8 Opt.
3/4* Std. 3/4* Std. 3/4* Std. 3/4* Std. 3/4* Std. 7/8* Std. 7/8* Std.
Optional 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Standard 1.00 1.00 1.00 1.00 1.00 1.00 0.99
Optional 0.97 0.97 0.97 0.97 0.98 0.98 0.99
Standard 0.98 0.98 0.98 0.99 0.98 0.98 0.98
Optional 0.94 0.94 0.94 0.94 0.95 0.95 0.98
Standard 0.95 0.95 0.96 0.97 0.97 0.97 0.94
Suction Line Connection Size
Model Size
Suction Line Run
－
Feet
NOTES:
* Standard size
Using suction line larger than shown in chart will result in poor oil return and is not recommended.
25'
50'
100'
Optional 0.90 0.90 0.90 0.90 0.91 0.92 0.97
Standard 0.92 0.92 0.93 0.96 0.96 0.96 0.90
150'
LINE SIZING
25 50 75 100 125 150
1/4 25 40 25 9 N/A N/A
5/16 25 50 60 58 40 30
3/8* 25 50 60 60 40 30
Rotary 3/8* 25 30 30 27
1/4 23 N/A N/A N/A N/A N/A
5/16 25 36 29 23 16 9
3/8* 25 50 60 60 40 30
Rotary 3/8* 25 30 30 24
1/4 25 N/A N/A N/A N/A N/A
5/16 25 49 38 27 17 6
3/8* 25 50 60 60 40 30
Rotary 3/8* 25 30 30 22
5/16 25 50 37 22 7 N/A
3/8* 25 50 60 60 40 30
5/16 25 23 4 N/A N/A N/A
3/8* 25 50 43 36 30 24
3/8* 25 46 38 30 22 15
1/2 25 50 56 55 40 30
3/8* 25 50 56 44 32 20
1/2 25 50 60 60 40 30
Liquid Line Size
Outdoor unit above or below indoor coil
3/8"
3/8"
3 Ton
Total Equivalent Length - Feet
Model Size
Line Size
Connection And
Line Size
(Inch O.D.)
Maximum Vertical Separation - Feet
Line Size
Connection Size
(Inch O.D.)
Compressor
Type
Scroll
Scroll
Scroll
1 1/2 Ton 3/8"
2 Ton 3/8"
3/8" 2 1/2 Ton
NOTES:
* Standard line size
N/A Application not recommended.
Scroll
Scroll
Scroll
Scroll
3 1/2 Ton
4 Ton
5 Ton
3/8"
3/8"
N/A N/A
N/A N/A
N/A N/A
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6.1GENERALINFORMATION & GROUNDING
Check the electrical supply to be sure that it meets the values specified on the unit
nameplate and wiring label.
Power wiring, control (Iow voltage) wiring, disconnect switches and over current
protection must be supplied by the installer. ire size should be sized per require-
ments.
CAUTION
All field wiring must USE COPPER CONDUCTORS ONLY and be in accordance
with Local, National Fire, Safety & Electrical Codes. This unit must be grounded
with a separate ground wire in accordance with the above codes.
The complete connection diagram and schematic wiring label is located on the inside
surface of the unit service access panel and this instruction.
1. Install the proper size weatherproof disconnect switch outdoors and within sight of
the unit.
2. Remove the screws at the side of the corner panel. Slide corner panel down and
remove from unit. See Fig. 9.
3. Run power wiring from the disconnect switch to the unit.
4. Route wires from disconnect through power wiring opening provided and into the
unit control box.
5. Install the proper size time-delay fuses or circuit breaker, and make the power
supply connections.
6. Energize the crankcase heater if equipped to save time by preheating the compres-
sor oil while the remaining installation is completed.
6.2FIELDCONNECTIONSPOWER WIRING
6.0ELECTRICALCONNECTIONS
14
NOTE: hen changing the motor, remove top cover first.
Fig.9 Typical Field iring
CORNER
PANEL
HIGHVOLTAGEWIRING LOWVOLTAGEWIRING
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15
1/2” nut
5/16” nuts
Fig.10 COVER AND FAN
6.3REMOVINGTHETOPPANELAND MOTOR
hen motor requires changing follow the steps below:
Step 1: Go into electrical panel, disconnect motor power lines.
IMPORTANTNOTE
Disconnect main power to unit. Severe burns and electrical shock will occur if
you do not disconnect main power.
Step 2: Remove cover (be careful of motor wires)
Step 3: Be sure to place fan cover unit on the ground as indicated in Fig. 10
IMPROTANTNOTE
Do not place or lean fan blades on ground or against surface.
Step 4: Remove fan motor by removing 5/16” nuts from cover.
Step 5: Remove fan blade from motor by removing 1/2” nut and place fan on the ground.
Step 6: Reverse removal process to reinstall the fan and motor.
IMPROTANTNOTE
hen connecting motor wires be sure to check motor direction.
Damage will occur to condenser unit
if you remove fan nuts prior to cover removal.
NOTE:
Charge for all systems should be checked against the Charging Chart inside the
access corner panel or Charging by weight.
IMPORTANT:Do not operate the compressor without charge in system. Additio n of
R - 410A will raise pressures (suction, liquid and discharge).
7.1CHARGINGBY LIQUIDPRESSURE
7.0CHECKINGREFRIGERANT CHARGE
In order to properly charge the system, the following conditions must be met:
1) Outdoor temperature above 60°F.
2) Indoor temperature between 70°F to 100°F.
3) Installation must be complete with brazed joints and drier visually inspected.
4) The unit electrical installation must be checked and unit powered for one (I) hour if
crank case heater is used or five (5) minutes if no crankcase heater is used.
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16
8.0WARRANTY
8.1MAINTENANCE
. Dirt should not be allowed to accumulate on the indoor or outdoor coils or other parts
in the air circuit. Clean as often as necessary to keep the unit clean. Use a brush,
vacuum cleaner attachment, or other suitable means.
2. The outdoor fan motor is permanently lubricated and does not require periodic oiling.
3. Refer to the furnace or air handler instructions for filter and blower motor maintenance.
4. The indoor coil and drain pan should be inspected and cleaned regularly to assure
proper drainage.
CAUTION
It is unlawful to knowingly vent, release or discharge refrigerant into the open air
during repair, service, maintenance or the final disposal of this unit. hen the
system is functioning properly and the owner has been fully instructed, secure the
owner’s approval.
Assist owner with processing arranty cards and/or online registration.
1.
7.2CHARGING BYWEIGHT
7.3FINALLEAK TESTING
After the unit has been properly evacuated and charged, a halogen leak detector
should be used to detect leaks in the system. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a leak is
detected, the refrigerant should be recovered before repairing the leak. The Clean Air
Act prohibits releasing refrigerant into the atmosphere .
For a new installation,evacuation of interconnecting tubing and indoor coil is adequate;
otherwise,evacuate the entire system. The factory refrigerant charge in the outdoor
unit is sufficient for 15 feet of standard size interconnecting liquid line. Calculate
actual charge required with installed liquid line size and length,please see 4.1 of
instruction.
ith an accurate scale (+/- 1 oz.) adjust charge difference between that shown on
the unit data plate and that calculated for the new system Installation. if the entire
system has been evacuated, add the total calculated charge.
Follow these steps:
1. Run in cooling mode at least 10 minutes.
2. Measure OUTDOOR AMBIENT TEMPERATURE within 6 inches of coil.
3. Measure SUCTION LINE PRESSURE.
4. Find the TARGET LIQUID PRESSURE at the intersection between the SUCTION LINE
PRESSURE and the OUTDOOR AMBIENT TEMPERATURE, if falls between rows or
columns then estimate the TARGET LIQUID PRESSURE or SUCTION LINE PRESSURE
falls between rows or columns then estimate the TARGET LIQUID PRESSURE between
the rows and columns.
5. Compare the measured LIQUID LINE PRESSURE to the TARGET LIQUID PRESSURE,
add charge to raise the pressure or recover charge to lower it.
6. After running unit for 10 minutes if the SUCTION LINE PRESSURE changes, go
back to step 2 otherwise remove test equipment and cover the valves.
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9.0WIRINGDIAGRAM
CAUTION
These units must be wired and installed in accordance with all National and
Local Safety Codes.
17
Fig.12 Outdoor Unit iring Diagram for Systems(208/230V 1P 60Hz).(JUST FOR 18K/24K/30K)
CCCOMPRESSORCONTACTOR
RC1RUNCAPACITOR1
RC2RUNCAPACITOR2
RC3RUNCAPACITOR3
COMPCOMPRESSOR
C
S R FAN
ORANGE
BROWN GREEN
BLACK
BLACK
BLACK
GREEN
A2
A1 BLACK C
Y
LINEVOLTAGE
FACTORYSTANDARD
FIELDINSTALLED
OPTIONAL
LOW
FACTORY
VOLTAGE
FACTORYSTANDARD
FIELDINSTALLED
FACTORYOPTIONAL
USE COPPERCONDUCTORS ONLY
WARNING: CABINETMUSTBEPERMANMENTLY
GOUNDEDANDALLWIRINGTOCONFORMTO
I.E.C,N.E.C,C.E.C,C.L.C,ANDLOCALCODESASAPPLICABLE
REPLACEMENTWIREMUSTBE THESAMEGAUGEAND
INSULATIONTYPEASORIGINALWIRE
BLACK
CC
COMP
YELLOW
BLACK
BLACK
L2
L1
GROUND
PLUGPLATE
RC 3
RC 1
RC 2
WHITE ORYELLOW
RED
BLACK
RED
L2
L1
Fig.13 Outdoor Unit iring Diagram for Systems(208/230V 1P 60Hz).(JUST FOR 36K/42K/48K/60K)
CCCOMPRESSORCONTACTOR
RC1RUNCAPACITOR1
RC2RUNCAPACITOR2
RC3RUNCAPACITOR3
COMPCOMPRESSOR
C
S R FAN
ORANGE
BROWN GREEN
BLACK
BLACK
BLACK
GREEN
A2
A1 BLACK
YELLOW
C
Y
LINEVOLTAGE
FACTORYSTANDARD
FIELDINSTALLED
OPTIONAL
LOW
FACTORY
VOLTAGE
FACTORYSTANDARD
FIELDINSTALLED
FACTORYOPTIONAL
USE COPPERCONDUCTORS ONLY
WARNING: CABINETMUSTBEPERMANMENTLY
GOUNDEDANDALLWIRINGTOCONFORMTO
I.E.C,N.E.C,C.E.C,C.L.C,ANDLOCALCODESASAPPLICABLE
REPLACEMENTWIREMUSTBE THESAMEGAUGEAND
INSULATIONTYPEASORIGINALWIRE
BLACK
CC
COMP
HGS
HGSHOTGASORCOMPRESSORTOPSENSOR
YELLOW
BLACK
BLACK
L2
L1
GROUND
PLUGPLATE
RC 3
RC 1
RC 2
WHITE ORYELLOW
RED
BLACK
RED
L2
L1
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18
TABLE6:Electrical Data:
THERMOSTAT
C
Y
R
G
INDOOR UNIT OUTDOOR UNIT
G
C
Y
R
C
Fig.14 Control iring for A/C Systems.
Model Minimum Circuit Ampacity(A) Maximum Circuit Protector(A)
18 9.0 15
24 11.6 20
30 16.0 25
36 19.9 35
42 28.2 45
48 32.0 50
60 31.1 50
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19
TABLE4.Troubleshooting
SYSTEM FAULTS
REFRIGERANT CIRCUIT
Head Pressure Too High
Head Pressure Too Low
Suction Pressure Too High
Suction Pressure Too Low
Liquid Refrig. Floodback
(TXV)
I.D. Coil Frosting
Compressor Runs Inadequate or
No Cooling/Heating
ELECTRICAL
Compressor & O.D. Fan on’t Start
Compressor ill Not Start But
O.D. Fan Runs
O.D. Fan on’t Start
Compressor Hums But on’t Start
I.D. Blower on’t Start
DEFROST
Unit on’t Initiate Defrost
Defrost Terminates on Time
Unit Icing Up
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H
P
P
P
P
P
P
P
P
P
P
P
P
S
S
S
S
S
S
S
P
P
P
P
S
S
S
S
P P
P
S
S
P
P
P
P
P
P
P
P
S
S
S
S
S
S
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
S
S
S
S
S
P
S
S
S
S
S
S
S
S
S
P
P
S
S
S
S
S
S
S
S
P
P
P
P
S
S
S
S
S
S
S
S
S
S
S
P
P
S
S
S
S
S
P
P
P
P
P
P
P
S
S
P
P
P
C-Cooling H -Heating P-Primary CausesS-SecondaryCauses
S
S
P
P
P
P
S
S
S
S
S S S S
S
S
P
S
1.
[]
2. Properly insulate suction lines and fittings. .........
5.Check all duct outlets; they must be open and unrestricted.
6.Check drain lines and be sure all joints are tight...............
[]
3.Properly secure and isolate all refrigerant lines... []
Be sure unit suspension(if used) is secure and that
thereare no tools or loose debris in or around or on
top of the unit......................................................
4.Verify that all electrical connections are tight. ..... []
After installation has been completed, it is recommended that the entire system be checked against the following list:
Final phases of this installation are the unit Operational and Checkout Procedures. To obtain proper performance,
all units must be operated and charge adjustments made in accordance with procedures found in the Service Facts
of the Outdoor Unit.
[]
[]
7.Be sure that a return air filter is installed. ..........................
[]
[]
8.Operate complete system in each mode to verify proper
performance. Verify operation of supplementary electric
heater. ...............................................................................
TABLE5.OperationalAnd CheckoutProcedures
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