Trane SINTESIS ADVANTAGE CGAF Series Installation Operation & Maintenance page 59

Refrigerant Charge
When a total heat recovery is installed, refrigerant charge (kg) are as shown in the table below.
Table 11 – Refrigerant Charge (THR Option) CGAF 080-190
CGAF-CXAF sizes
SE 45=A Quantity circuit 1/2
HE/XE 45=A Quantity circuit 1/2
Figure 18 – Total heat recovery water loop pressure drop Total THR & BPHE (THR) Curve
Figure 19 – Partial / Total heat recovery pipe recommendations
A = Trane supplied
1 = Gate valve
2 = Water strainer
3 = Thermometer (user option)
4 = Vibration eliminator
5 = Relief valve
6 = Valved pressure gauge
7 = Vent (one factory-installed)
8 = Drain (at lowest position)
9 = Flow switch (warm water ow)
10 = Balancing valve
11 = Clean out tee
CG-SVX039C-GB
Refrigerant charge THR Option
80 90 100
-- 36 34
36 40 41
TOTAL HEAT RECOVERY (THR) & BPHE (THR) - CGAF SE/HE/XE
250
1 to 4 - Total THR Pressure Drop
5 - BPHE (THR) Pressure Drop
50
3
1
10
2 4 8
Water Flow Rates (L/s)
110 130 140
34 36 43
41 42 61
1 - 080/090 - SE/HE/XE
4
2
2 - 100/110/130 - SE/HE/XE
5
3 - 140/150/165 - SE/HE/XE
4 - 180/190 SE/HE/XE
5 - BPHE -
080/090/100/110/130/140/1
50/165/180/190 - SE/HE/XE
16 32
Total Heat Recovery
150 165 180
45 46 60
61 61 63
190
61
64
59