MULTI F MAX BD UNIT
General Data
Table 316:
Multi F MAX BD Unit General Data.
Model Number
PMBD3620
PMBD3630
PMBD3640
PMBD3641
No. of Connectable Indoor Units
1
1-2
1-3
1-4
1-4
Max. Nominal Capacity / Port (Btu/h)
2
24,000
24,000
24,000
24,000 for A,B,C Ports;
36,000 for D Port
Max. Nominal Capacity / BD Unit (Btu/h)
48,000
72,000
73,000
73,000
Operation Temperature Range (°F DB)
0 ~ 122
0 ~ 122
0 ~ 122
0 ~ 122
Unit Data
Refrigerant Type
R410A
R410A
R410A
R410A
Power Supply V, Ø, Hz
208-230, 1, 60
208-230, 1, 60
208-230, 1, 60
208-230, 1, 60
Power Input (W)
16
24
32
32
Rated Amps (A)
0.08
0.12
0.16
0.16
Dimensions W x H x D (in.)
17-3/32 x 6-13/32
x 10-23/32
17-3/32 x 6-13/32
x 10-23/32
17-3/32 x 6-13/32
x 10-23/32
17-3/32 x 6-13/32
x 10-23/32
Net Unit Weight (lbs.)
13
14.3
15.7
15.7
Shipping Weight (lbs.)
15
17
18
18
Power Wiring / Communication Cables
3
From Outdoor Unit to BD Unit (Qty. x AWG)
3
4 x 16
4 x 16
4 x 16
4 x 16
From BD Unit to Indoor Unit (Qty. x AWG)
3
4 x 18
4 x 18
4 x 18
4 x 18
Piping Connections
Outdoor Unit to
BD Unit
Liquid (in., OD)
Ø3/8
Ø3/8
Ø3/8
Ø3/8
Vapor (in., OD)
Ø3/4
Ø3/4
Ø3/4
Ø3/4
BD Unit to
Indoor Units
Liquid (in., OD) x Qty.
Ø1/4 x 2
Ø1/4 x 3
Ø1/4 x 4
Ø1/4 x 3
Ø3/8 x 1
Vapor (in., OD) x Qty.
Ø3/8 x 2
Ø3/8 x 3
Ø3/8 x 4
Ø3/8 x 3
Ø5/8 x 1
Piping Lengths
Maximum Total System Piping (ft.)
4
475.7
475.7
475.7
475.7
Maximum Main Pipe Length (Outdoor Unit
to BD Units [ft.])
180.4
180.4
180.4
180.4
Total Branch Piping (BD Units to Indoor
Units [ft.])
295.3
295.3
295.3
295.3
Maximum Branch Pipe Length Between
BD Unit and Each Indoor Unit [ft.])
49.2
49.2
49.2
49.2
Maximum Outdoor Unit to Indoor Unit
Pipe Length (ft.)
229.6
229.6
229.6
229.6
Piping Length (No Additional Refrigerant [ft.];
approx. 16 ft. of Main 131 ft. of
Branch Piping)
147.6
147.6
147.6
147.6
Maximum Elevation between BD Unit and
Indoor Unit (ft.)
32.8
32.8
32.8
32.8
Maximum Elevation between BD Unit and
BD Unit (ft.)
49.2
49.2
49.2
49.2
1
At least one Branch Distribution Unit is required for system operation; a maximum of two can be installed per outdoor unit with use of Y-branch accessory (PMBL5620) To connect only one (1) indoor unit to a
branch distribution unit, the system must include another branch distribution unit with at least one (1) connected indoor unit.
2
Branch Distribution Unit can accommodate from one (1) indoor unit up to four (4) indoor units depending on the ports available on the Branch Distribution Unit.
3
All power wiring / communication cables to be four-conductor, stranded, shielded, and must comply with applicable local and national codes.
4
Piping lengths are equivalent.
Due to our policy of continuous product innovation, some specifications may change without notification.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
334 | BD UNIT
Multi F and Multi F MAX Heat Pump System Engineering Manual
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