Calculation Of Water Consumption; Calculation For Water Storage Capacity Of Water Tank - Gree GMV-S120WL/A-S Service Manual

Model selection principle: calculate ―water consumption of user‖ according to ―number of
people and per capita water consumption‖ and ―water consumption of bathroom accessories‖
respectively, and take the larger value. And then calculate ―water storage capacity of water tank‖,
that is, cubic capacity of water tank.

8.3.6.1 Calculation of water consumption

According to related standard or experience
(1) According to per capita water consumption
Construction
Residence
Villa
(2) According to water consumption of bathroom accessories
Bathroom accessory
Bathtub (with shower)
Bathtub (without shower)
Shower
Washbasin
In this case, there are five persons; one bathtub (with shower), two showers, three
washbasins;
Calculate ―water consumption of user‖ according to ―number of people and per capita water
consumption‖: 5*70=350L；
Calculate ―water consumption of user‖ according to ―water consumption of bathroom
accessories‖: 150+70*2+3*3=299L；
Take simultaneous ultilization rate as 0.7; then total water consumption of user
=350L*0.7=245L；
Item
People
Total water
consumption
Item
Bathtub (with shower)
Shower
Washbasin
Total water
consumption
8.3.6.2 Calculation for water storage capacity (cubic capacity) of water tank
Water storage capacity of water tank=(t model selection designed water temperature- t
cooling water entering temperature)* total water consumption of user/(t heating temperature of
water tank- t cooling water entering temperature)
t model selection designed water temperature—— in consideration of the temperature when
GMV5 Home DC Inverter Multi VRF Units
Unit
Per day, per capita
Per day, per capita
Using water temperature (℃)
37~40
Calculation for water consumption of user
According to per capita consumption
Quantity
5 persons
According to bathroom accessories
Quantity
One
Two
Three
Simultaneous ultilization rate: 0.7 at most
Final defined total water consumption: 350L*0.7=245L
Designed daily water
consumption (L)
40~80
70~110
One-time water consumption (L)
40
40
30
Per capita water consumption (per
day, per capita) L
5*70=350L；
One-time water consumption of unit
quantity (L)
150+70*2+3*3=299L
41
Using water
temperature (℃)
60
60
150
125
70~100
3
70
150
70
3