Daikin RXYSQ4P8V1B [21/32] Capacity tables
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Daikin RXYSQ4P8V1B [21/32] Capacity tables

Daikin RXYSQ4P8V1B [21/32] Capacity tables
•VRV
®
Systems • Outdoor Unit
19
• Outdoor Unit • VRV
®
III-S heat pump • RXYSQ-P8V1
4 Capacity tables
4 - 4 Capacity Correction Factor
3TW33622-5
NOTES
RXYSQ-P8V1B
Capacity Correction Factor by the Length of Refrigerant Piping
Ɣ Rate of Change in Capacity by the Main Piping Length
Rate of Change in Cooling Capacity
Main Piping Length 5 10 15 20 25 30 35 40 45 50 55
Rate of Change in Cooling Capacity 100.0% 98.6% 97.2% 95.9% 94.7% 93.5% 92.3% 91.2% 90.1% 89.1% 88.1%
Rate of Change in Heating Capacity
Main Piping Length 5 10 15 20 25 30 35 40 45 50 55
Rate of Change in Heating Capacity 100.0% 99.5% 99.1% 98.6% 98.2% 97.7% 97.3% 96.9% 96.4% 96.0% 95.6%
(1) Refrigerant Piping Connection Diameter
liquid ø 6.4
gas ø 15.9
Rate of Change in Capacity
piping length Cooling Heating
3 100.0% 100.0%
5 99.6% 99.9%
10 98.7% 99.6%
15 97.9% 99.3%
(2) Refrigerant Piping Connection Diameter
liquid ø 6.4
gas ø 12.7
Rate of Change in Capacity
piping length Cooling Heating
3 100.0% 100.0%
5 99.1% 99.5%
10 96.9% 98.2%
15 94.8% 97.0%
(3) Refrigerant Piping Connection Diameter
liquid ø 6.4
gas ø 9.5
Rate of Change in Capacity
piping length Cooling Heating
3 100.0% 100.0%
5 98.0% 98.8%
10 93.4% 96.0%
15 89.3% 93.5%
Piping size for fi eld connection (mm)
RA SA
Liquid gas Liquid gas
Class
(KW)
25
ø 8.4
ø 9.5
ø 8.4
ø 9.5
35
50
ø 12.7
ø 15.960
71 ø 15.9 ø 9.5
Both cases outdoor unit in inferior or superior for indoor unit, the rate of change in capacity is same
Ɣ Rate of Change in Capacity by Branch Piping Length
[ Method of calculating cooling/heating capacity ]
Total capacity from capacity tables x (Rate of change in capacity by main piping length x Rate of change in capacity by branch piping length)
Indoor unit
Outdoor unit
BP unit
L1
L2
5m
3m
1. These fi gures illustrate the rate of change in capacity of a standard indoor unit system at maximum load (with the thermostat set to
maximum) under standard conditions.
Moreover, under partial load conditions there is only a minor deviation from the rate of change in capacity shown in the above fi gures.
2. With the outdoor unit, evaporating pressure constant control when cooling and condensing pressure constant control when heating is
carried out.
3. For RXYSQ: use these correction factors in case of installation with bp unit.
Main Piping Length Rate of Change in Capacity
Rate of Change in Cooling Capacity
Rate of Change in Heating Capacity
Cooling
Heating
Cooling
Heating
Cooling
Heating
Main Piping Length L1 (m)
0 5 10 15 20 25 30 35 40 45 50 55
Branch Piping Length L2 (m)
Branch Piping Length L2 (m)
Branch Piping Length L2 (m)
Rate of Change in Capacity (%)
Rate of Change in Capacity (%)
Rate of Change in Capacity (%)
Rate of Change in Capacity (%)
(1) Refrigerant Piping Connection Diameter
liquid ø 6.4 gas ø 15.9
(2) Refrigerant Piping Connection Diameter
liquid ø 6.4 gas ø 12.7
(3) Refrigerant Piping Connection Diameter
liquid ø 6.4 gas ø 9.5
[ System layout of piping ] Piping length: L1=5m L2=3m
100%
98%
96%
94%
92%
90%
88%
86%
84%
82%
80%

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