Lennox VPB H4-3P Series User Manual

18
AB
C
Indoor unit
≤
20m
L1
Maximum Permitted Refrigerant Pipe Length and Maximum Height Difference - With Two Header Pipe Kits
NOTE - See Refrigerant Pipe Selection Table to size Main Outdoor Pipe.
Maximum Height Difference Outdoor Unit to Indoor Unit
Maximum Height Difference Indoor Unit to Indoor Unit
D
Mini-VRF
Heat Pump
Outdoor unit
F
E
L3
L4
Header Pipe Kit
V8HDRK04
NOTE - Header pipe kits should be placed between the Outdoor Unit and Indoor Units.
Header pipe kits cannot be connected in series.
NOTE - In applications requiring more than one Header pipe kit,
call Lennox VRF Applications Department for assistance.
Header Pipe Kit
V8HDRK04
Length and Maximum Height Di󰀨erence Maximum Permitted Length Piping
Pipe Length
Total Piping Length (Actual) ≤492 ft. (150 m) L1+A+B+C+D+E+F+L3+L4
Maximum Piping Length
Actual Length ≤296 ft. (90 m)
L1+L4+A, L1+L4+B,
L1+L4+C, L1+L4+D,
L1+L3+E, L1+L3+F
Equivalent
Length
≤328 ft. (100 m)
Pipe length from the rst Branch Pipe to each indoor
unit.
65.6 ft. (20 m)
L4+A, L4+B, L4+C, L4+D,
L3+E, L3+F
≤ 65.6 ft. (20 m) each
Maximum
Height
Di󰀨erence
Indoor Unit to Outdoor Unit
Maximum Height Di󰀨erence
Outdoor Unit
Up
≤164 ft. (50 m) - - -
Outdoor Unit
Down
≤131 ft. (40 m) - - -
Indoor Unit to Indoor Unit Maximum Height
Di󰀨erence
≤49 ft. (15 m) - - -
NOTE - Each branch pipe equals 20 in. (508 mm) equivalent straight pipe length.
Description Designation
Main Outdoor Pipe - from outdoor unit to rst Branch Pipe L1
Main Indoor Pipe - from Branch Pipe to each header pipe
kit(s)
L3, L4
Indoor Unit Pipe - from header pipe kit(s) to indoor units A, B, C, D, E, F

Lennox VPB H4-3P Series Specifications

General

Brand	Lennox
Model	VPB H4-3P Series
Category	Heat Pump
Language	English