Lennox REAL VPC H4-3P Series

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INDOOR PIPE SELECTION (L2, A, B, C, D, E, F, G, H)
Indoor Unit Type Indoor Unit Size Gas (Vapor) Pipe Diameter Liquid Pipe Diameter
V22B Compact 360° Cassette 007, 009, 012, 015 1/2 in. 1/4 in.
V33B High E󰀩ciency 360° Cassette
009, 012, 015 1/2 in. 1/4 in.
018, 024, 030,
036, 048
5/8 in. 3/8 in.
VOWA One-Way Cassette
007, 009, 012, 015 1/2 in. 1/4 in.
018, 024 5/8 in. 3/8 in.
VCFB Ceiling/Floor Mount Non-Ducted
012, 015 1/2 in. 1/4 in.
018, 024, 030,
036, 048
5/8 in. 3/8 in.
VHIB Concealed High Static Ducted
012, 015 1/2 in. 1/4 in.
024, 030, 036,
048, 054
5/8 in. 3/8 in.
072 7/8 in. 3/8 in.
VOSB Outside Air Unit 036, 048, 054 5/8 in. 3/8 in.
VMDB Concealed Medium Static Ducted
007, 009, 012, 015 1/2 in. 1/4 in.
018, 024, 030,
036, 048
5/8 in. 3/8 in.
VSCA/VSEA Floor Standing Units
(Cased/Exposed)
007, 009, 012,
015, 018
1/2 in. 1/4 in.
024 5/8 in. 3/8 in.
VVCB Vertical Air Handler
012 1/2 in. 1/4 in.
018, 024, 030,
036, 048, 054
5/8 in. 3/8 in.
060 7/8 in. 3/8 in.
VWMB Wall-Mounted Non-Ducted
007, 009, 012, 015 1/2 in. 1/4 in.
018, 024, 030 5/8 in. 3/8 in.
NOTE - If the total capacity of the indoor units is greater than 100% of the capacity of the outdoor unit, individual indoor unit capacities will be reduced.
INDOOR UNIT COMBINATION RATIO
Indoor Units Combination Ratio Total Piping Length
Standard indoor units (Except VVCB and VHIB) ≤ 100% < 492 ft. (150 m)
Standard indoor units (Includes VVCB or VHIB) ≤ 100% < 492 ft. (150 m)
100% - 130% < 328 ft. (100 m)
Contains Air Handler Control Kit ≤ 100% < 492 ft. (150 m)
Only VOSB indoor unit ≤ 100% < 492 ft. (150 m)
VOSB and other types of indoor units Not allowed Not allowed
VVCB Vertical Air Handler ≤ 100% < 164 (50 m)
NOTE - Minimum combination ratio of VPC018H4M is 65%, all others are 50%.
Table 8. Indoor Piping Sizes for Connection to VRF Indoor Units and AHU Control Kits
Table 9. Total Piping Length and Indoor Unit Combination Ratios for Connection to VRF Indoor Units
and AHU Control Kits