Combination Ratio - Trane 4TVH0086FE000AA Service Manual

4 Combination Ratio

Combination ratio =
Table 1-4.1: Indoor and outdoor unit combination ratio limitations
Type
V6-i Series outdoor units
Notes:
1. When fresh air processing units are installed together with standard indoor units, the total capacity of the fresh air processing units must not exceed 30%
of the capacity of the outdoor unit and the combination ratio must not exceed 100%.
Table 1-4.2: Combinations of Indoor and outdoor units
Outdoor unit capacity
Capacity
kW HP
index
25.2 8 252
28.0 10 280
33.5 12 335
40.0 14 400
45.0 16 450
50.0 18 500
56.0 20 560
61.5 22 615
67.0 24 670
73.0 26 730
78.5 28 785
85.0 30 850
90.0 32 900
Sum of capacity indexes of the indoor units
Capacity index of the outdoor unit
Minimum
Standard indoor
combination ratio
50%
Sum of capacity indexes of
connected indoor units (standard
indoor units only)
126 to 327.6
140 to 364
167.5 to 435.5
200 to 520
225 to 585
250 to 650
280 to 728
307.5 to 799.5
335 to 871
365 to 949
392.5 to 1020.5
425 to 1105
450 to 1170
Maximum combination ratio
Fresh air processing
units only units only
130% 100%
Sum of capacity indexes of connected indoor
units (fresh air processing units and standard
indoor units together)
167.5 to 335
307.5 to 615
392.5 to 785
10
Fresh air processing units and
standard indoor units together
126 to 252
140 to 280
200 to 400
225 to 450
250 to 500
280 to 560
335 to 670
365 to 730
425 to 850
450 to 900
100%
1
Maximum number of
connected indoor
units
13
16
20
23
26
29
33
36
39
43
46
50
53