Sanyo SPW-CR703GDCH8 - Page 32

II - 10
Design of W-ECO MULTI SYSTEM
2
TD831077
1. Model Selecting and Capacity Calculation
1-6. Capacity correction graph according to temperature condition (For R22)
Cooling capacity diagram Heating capacity diagram
0 5 10 15 20 25 30 35 40 45 50
70
80
90
100
110
120
80
90
100
110
120
130
Outdoor air intake temp. °C (DB)
Input coefficient (%) Capacity coefficient (%)
Indoor air intake temp. °C (WB)
Indoor air intake temp. °C (WB)
33
22 °C
20
18
16
22 °C
20
18
16
a. b
c. d. e
c. d. e
a. b
449_1077
-15
451_1077
-10 -5 0 5 10 15
70
80
90
100
110
120
40
50
60
70
80
90
100
110
120
130
Input coefficient (%) Capacity coefficient (%)
Indoor air intake temp. °C (DB)
Indoor air intake temp. °C (DB)
a. b
c. d. e
a. b
c. d. e
15 °C
20
25
25 °C
20
15
Outdoor air intake temp. °C (WB)
Cooling Heating
Outdoor temp. Indoor temp. Capacity Input Outdoor temp. Indoor temp. Capacity Input
(DB) (WB) coefficient coefficient (WB) (DB) coefficient coefficient
Indoor unit 25: a 33 ˚C 19 ˚C 102 % 98 % 0 ˚C 20 ˚C 86 % 94 %
Indoor unit 12: b 33 ˚C 19 ˚C 102 % 98 % 0 ˚C 20 ˚C 86 % 94 %
Indoor unit 9: c 33 ˚C 17.5 ˚C 97 % 96 % 0 ˚C 22 ˚C 83 % 92 %
Indoor unit 18: d 33 ˚C 17.5 ˚C 97 % 96 % 0 ˚C 22 ˚C 83 % 92 %
Indoor unit 36: e 33 ˚C 17.5 ˚C 97 % 96 % 0 ˚C 22 ˚C 83 % 92 %
System example
Rating value: Cooling
Cooling capacity Input: kW
Model
:kW (Btu/h) 380 - 400 - 415 V
70 type 22.4 ( 76,400) 9.46 - 9.52 - 9.58
90 type 28.0 ( 95,500) 11.3 - 11.4 - 11.5
150 type 45.0 (154,000) 17.6 - 17.7 - 17.8
190 type 56.0 (191,000) 21.9 - 22.1 - 22.3
Rating value: Heating
Heating capacity Input: kW
Model
:kW (Btu/h) 380 - 400 - 415 V
70 type 25.0 ( 85,300) 9.08 - 9.12 - 9.17
90 type 31.5 (107,500) 10.6 - 10.8 - 11.0
150 type 50.0 (171,000) 16.9 - 17.0 - 17.2
190 type 63.0 (215,000) 20.6 - 21.0 - 21.4
¶ Heating capacity correction coefficient at the time of frosting / defrosting (For R22)
Outdoor suction air temp
– 11– 10– 9– 8– 7– 6– 5– 4– 3– 2– 10123456
(CWB, RH85 %)
Correction coefficient 0.97 0.97 0.97 0.96 0.95 0.94 0.91 0.89 0.88 0.87 0.87 0.87 0.88 0.89 0.91 0.92 0.95 1.0
¶ To find out the heating capacity taking into account the frosting / defrosting operation, multiply the capacity given in the
capacity chart with the value in the above table.
¶ The correction coefficients are for outdoor capacity ratio 100 % heating operation.