Samsung max mini-split units Quick start guide
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BASIC TECHNICAL INFORMATION FOR:
SAMSUNG MAX
MINI-SPLIT UNITS
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208/230V
System
Breaker
Separate all Power &
Communications Wiring by 2”
Indoor Unit
(Ground)
Outdoor
Unit
F2
F1
G
L1
L2
F2
F1
G
L1
L2
POWER VOLTAGE:
Power Voltage: 208/230V - 1 Ph - 60 Hz
Control Voltage: DDC Fuzzy Logic
Main Breaker Size: 15 A
CHARGING:
Unit is charged for: 25 ft. (Factory Charge 31.7oz. R410A)
Additional Charge of R410A: 0.16 oz./ft. over 25 ft.
CHARGE FOR LINE RUN LENGTHS:
Length: 25 35 45 50
Added Charge (oz.): 0 1.6 3.3 4.0
INTERCONNECTING WIRING:
Gauge:
14 AWG Power & 16 AWG Shielded Communication
Number of Interconnecting Wires: 3x14 AWG Power & 2x16 AWG Control = 5 Total
LINE SIZES:
“Liquid” (expanded gas) line: 1/4”
Suction: 3/8”
BOTH LINES MUST BE INSULATED SEPARATELY
Samsung MAX 12,000 BTU Mini-Split
Indoor Unit: #700550 (AQN12VFUAGM)
Outdoor Unit: #700552 (AQX12VFUAGM)
INTERCONNECT LENGTH:
Maximum/Minimum Length: 50 feet / 10 feet
Vertical Lift: 26 feet
Note: Condenser can be above or below evaporator
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Distributed by:
208/230V
System
Breaker
Separate all Power &
Communications Wiring by 2”
Indoor Unit
(Ground)
Outdoor
Unit
F2
F1
G
L1
L2
F2
F1
G
L1
L2
POWER VOLTAGE:
Power Voltage: 208/230V - 1 Ph - 60 Hz
Control Voltage: DDC Fuzzy Logic
Main Breaker Size: 20 A
CHARGING:
Unit is charged for: 25 ft. (Factory Charge 58.1oz. R410A)
Additional Charge of R410A: 0.16 oz./ft. over 25 ft.
CHARGE FOR LINE RUN LENGTHS:
Length: 25 35 45 55 65 75 85 95 98
Added Charge (oz.): 0 1.6 3.2 4.8 6.4 8.0 9.6 11.2 11.68
INTERCONNECTING WIRING:
Gauge:
14 AWG Power & 16 AWG Shielded Communication
Number of Interconnecting Wires: 3x14 AWG Power & 2x16 AWG Control = 5 Total
LINE SIZES:
“Liquid” (expanded gas) line: 1/4”
Suction: 5/8”
BOTH LINES MUST BE INSULATED SEPARATELY
Samsung MAX 24,000 BTU Mini-Split
Indoor Unit: #700554 (AQN24VFUAGM)
Outdoor Unit: #700556 (AQX24VFUAGM)
INTERCONNECT LENGTH:
Maximum/Minimum Length: 98 feet / 10 feet
Vertical Lift: 50 feet (Trap required at 26 ft.)
Note: Condenser can be above or below evaporator
WWW.SUNLIGHTSUPPLY.COM
Distributed by:
208/230V
System
Breaker
Separate all Power &
Communications Wiring by 2”
Indoor Unit
(Ground)
Outdoor
Unit
F2
F1
G
L1
L2
F2
F1
G
L1
L2
POWER VOLTAGE:
Power Voltage: 208/230V - 1 Ph - 60 Hz
Control Voltage: DDC Fuzzy Logic
Main Breaker Size: 30 A
CHARGING:
Unit is charged for: 25 ft. (Factory Charge 88.1oz. R410A)
Additional Charge of R410A: 0.43 oz./ft. over 25 ft.
CHARGE FOR LINE RUN LENGTHS:
Length: 25 35 45 55 65 75 85 95 98
Added Charge (oz.): 0 4.3 8.6 12.9 17.2 21.5 25.8 30.1 32.25
INTERCONNECTING WIRING:
Gauge:
14 AWG Power & 16 AWG Shielded Communication
Number of Interconnecting Wires: 3x14 AWG Power & 2x16 AWG Control = 5 Total
LINE SIZES:
“Liquid” (expanded gas) line: 1/4”
Suction: 5/8”
BOTH LINES MUST BE INSULATED SEPARATELY
Samsung MAX 36,000 BTU Mini-Split
Indoor Unit: #700558 (AQN36VFUAGM)
Outdoor Unit: #700560 (AQX36VFUAGM)
INTERCONNECT LENGTH:
Maximum/Minimum Length: 164 feet / 10 feet
Vertical Lift: 98 feet (Trap required at 26 ft.)
Note: Condenser can be above or below evaporator
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Samsung MAX Wired Controller (optional)
Part: #700574
sub-PCB INSTALLATION INSTRUCTIONS
• The sub-PCB installs inside a single MAX indoor unit (Part #700550, #700554
or #700558). It is required to connect and control an indoor unit with the
Samsung wired controller (part #700578).
• Provides 12V DC to the Samsung wired controller (part #700578).
• Required to control MAX models with Samsung central control options
(upper level control).
• Includes sub-PCB, 4 crimp wire connectors, wire harness and sub-PCB cover.
sub-PCB Wire Harness
sub-PCB
1. With the power off, open the front panel of the MAX indoor unit. Remove the
main PCB cover by removing the screw in the bottom corner.
• Make sure the power is turned
off to the outdoor unit before
opening the indoor unit PCB
cover or cabinet.
• The front panel of the MAX
indoor unit is easily removed to
make installation easier and to
prevent damage to the panel.
INSTALLATION NOTES:
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(continued...)
sub-PCB INSTALLATION INSTRUCTIONS
2. Inside the unit, towards the bottom of the cabinet you will find a PCB wire
harness. Gently pull this wire upward and out of the unit.
3. Connect the PCB to the PCB wire harness (a) and to the sub-PCB wire
harness (b).
NOTE: the sub-PCB wire harness is included with the wired controller.
(a) (b)
4. Remove the protective tape (a) and slide all connected wires into the
groove beside the sub-PCB mounting location (b). Snap the sub-PCB cover
over the installed sub-PCB.
(a) (b) (c)
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(continued...)
sub-PCB INSTALLATION INSTRUCTIONS
6. Tuck the connected wires into the unit cabinet and replace the main PCB cover
and front panel (if removed). Apply power and proceed with programming
your controller (temperature sensing location, time, Fahrenheit, etc.)
5. With the wired controller wires already installed, pull the wires through the
front of the indoor unit. Cut the 2 small plastic connectors off the ends of the
sub-PCB wire harness (the ends of the red/blue and yellow/orange wires).
Connect F3/F4 and V1/V2 between the indoor unit and the wired controller
as pictured below.
RED = F3 BLUE = F4 ORANGE = V1 YELLOW = V2
Remove
Wired controller wire
(field provided) PCB wire
harness
connection
plug
NOTE: The wired controller does not include
a connection wire. This wire field is provided.
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BASIC INSTALLATION TIPS
SIZING
Basic sizing is 200-250 sq. ft. per 12,000 BTU/h.
Computer/Data Rooms:
Basic sizing is 400-450 sq. ft. per 12,000 BTU/h.
Commercial/Retail:
Basic sizing is 550-600 sq. ft. per 12,000 BTU/h.
Residential:
LOW AMBIENT COOLING
As standard, these units have a low ambient cooling capability down to 10ºF
outdoor temperature.
Computer/Data Rooms and Commercial:
THESE UNITS CANNOT OPERATE IN COOLING BELOW 10ºF AMBIENT
TEMPERATURE UNLESS EQUIPPED WITH AN APPROVED WIND BAFFLE TO
PROTECT THE OUTDOOR UNIT. SHOULD A WIND BAFFLE BE INSTALLED, UNIT
PERFORMANCE CAN BE EXPECTED DOWN TO 0ºF OUTDOOR TEMPERATURE.
PLEASE NOTE THAT IF A PROLONGED OFF CYCLE IS EXPERIENCED IN
OUTDOOR TEMPERATURES BELOW 10ºF, THE UNIT MAY NOT RESTART UNTIL
THE TEMPERATURE RISES ABOVE 14ºF.
R410A REFRIGERANT
Higher pressures (close to double) than R22, but the operating temperatures
are very similar to those with R22.
For example:
A saturated suction temperature of 45ºF = Suction Pressure of 130 psig
R410A:
A saturated suction temperature of 45ºF = Suction Pressure of 76 psig
R22:
• Minimize the time that the system is open to the atmosphere.
• Ensure that a deep vacuum is pulled on the system - 200 microns or less.
• Do not install any sight glasses or filter driers in the line set.
NOTE: It is not necessary to remove refrigerant for line sets shorter than
the specified length of the factory charge.
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(continued...)
BASIC INSTALLATION TIPS
The gauge connection on the Samsung units is a 5/16” male, so an adapter is
required to connect a standard North American set of R410A gauges to the
Samsung unit.
R410A REFRIGERANT (continued...)
UNIT LOCATION
High Wall units should be located a minimum of 4ft from the ground. Also, some
of the indoor unit clearances listed in the specific unit installation manuals can
be decreased to a minimum clearance of 2 inches from the ceiling to the top
of the unit, while still maintaining unit performance and efficiency levels.
Indoor Unit:
Ensure that no obstacles are directly in front of the unit for a minimum distance
of 10-12ft on the MAX and Vivace 12,000 BTU units, 20-25ft on the MAX and
Vivace 24,000 BTU units and 25-30ft on the MAX 36,000 BTU unit. This will prevent
bounce back of the conditioned air and will ensure adequate airflow is
maintained, keeping the indoor coil warm and allowing the system to run to
full capacity when necessary.
If any system is prevented from running at full capacity regularly, whether it
is from impeded airflow or over sizing, it will have an adverse affect on the
system’s ability to properly return oil to the compressor. Over time this will cause
inconsistent performance, error codes, and premature failure of components.
Ceiling Cassette units must have a Minimum Distance of 5ft from the louver
opening to any wall or other obstacle for the same reasons as listed above.
Ensure line set runs are adhered to, it is required that a minimum line set length
of 10 ft. be maintained. Exceeding the published maximum line set length is
not permitted, under any circumstance.
Outdoor Unit:
Since these units are heat pumps, you should raise the outdoor unit 4-6” from
the pad/ground to help drain the unit after a defrost cycle. Also, ensure the
unit is capable of operating in desired ambient temperatures. As previously
stated, if the outdoor coil temperature is allowed to drop below 10ºF, the
system will lock out, not restarting until that temperature rises above 14ºF.
Minimum clearances of 6” behind and 24” in front of the outdoor unit must
also be maintained. Enough clearance must be maintained from the sides to
accommodate service of the unit.
Also, keep in mind that since the expansion valve is located in the outdoor
unit, the line set is merely an extension of the indoor coil and, although
insulated, the longer the line set run is, the more likely there will noticeable loss
of capacity.
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