Carrier X-POWER Series Service Manual page 120

R410a DC Inverter 60Hz
pipe must be equipped with water storing elbow.
Function of water storing elbow:
When indoor unit is in motion, prevent generating negative pressure to cause drainage difficulty or blow
water out of the air outlet.
Installation of water storing elbow:
1. Install water storing elbow as shown in following figure: H shall be above 50mm.
2. Install one water storing elbow for each unit.
3. When installation, consider it shall be convenient in future clean.
4.3 Concentrated Drainage Pipe
4.3.1 Pipeline diameter of concentrated drainage pipe
Select drainage pipe diameter according to indoor unit's combined flow volume.
E.g. If one 1HP unit with 2L/h discharging condensate water, the calculation of the combined flow
volume of three 2HP units and two 1.5HP units is: 2HP×2L/h×3 + 1.5HP×2L/h×2 =18L
4.3.2 Relation between horizontal pipeline diameter and permitted displacement of condensate water
Inner diameter of
PVC
piping(reference
piping
value: mm)
PVC25 19
PVC32 27
PVC40 34
PVC50 44
PVC63 56
Attention: through converge point need use PVC40 or larger pipe.
4.3.3 Relation between vertical pipeline diameter and displacement of condensate water
Inner diameter of
PVC
piping(reference
piping
value: mm)
PVC25 19
PVC32 27
PVC40 34
PVC50 44
PVC63 56
PVC75 66
PVC90 79
Attention: through converge point need use PVC40 or larger pipe.
4.3.4 Operation process of concentrated drainage
Install indoor unit → connect drainage pipe → water passing test and overflowing water test → thermal
insulation of drainage pipe
Caution:
138
Permitted displacement(1/h)
Inner diameter
of piping(mm)
Slope 1:50
20 39
25 70
31 125
40 247
51 473
Inner diameter
Permitted displacement(1/h)
of piping(mm)
20
25
31
40
51
67
77
Carrier service manual
Slope 1:100
27 (Reference value)could not
50 used for confluence pipe
88
175
334
220 (Reference value)could not
used for confluence pipe
410
730
1440
2760
5710
8280
Remark
Could be used for
confluence pipe
Remark
Could be used for
confluence pipe
Installation