Main Switch - Atlas Copco GA 7 VSD+ Instruction Book

Instruction book
Temperature input
Water inlet temperature of energy recovery
Water inlet temperature of energy recovery
Energy recovery water outlet temperature
Energy recovery water outlet temperature
To modify a setting, consult the relevant section in the description of the Elektronikon controller.
Recoverable energy
The recoverable energy can be calculated from:
RECOVERED ENERGY (kW) = 4.2 x water flow (l/s) x water temperature rise (˚C)
In the tables below, typical examples are given.
Data for low temperature rise/high water flow systems
Parameter
Recoverable energy
Recoverable energy
Temperature at inlet
Temperature at inlet
Temperature at outlet
Temperature at inlet
Data for high temperature rise/low water flow systems
Parameter
Recoverable energy
Recoverable energy
Temperature at inlet
Temperature at inlet
Temperature at outlet
Temperature at inlet
5.2

Main switch

A build-in main switch can be ordered from factory
2920 7109 23
Unit GA7
+
VSD
kW 6.2
hp 8.4
˚C 50
˚F 122
˚C 60
˚F 140
Unit GA7
+
VSD
kW 6.2
hp 8.4
˚C 20
˚F 68
˚C 60
˚F 140
Minimum
setting
˚C 0
˚F 32
˚C 0
˚F 32
GA11
+
VSD
9.7
13.2
50
122
60
140
GA11
+
VSD
9.7
13.2
20
68
60
140
Nominal Maximum
setting setting
50 99
122 210
Depends on 99
application
Depends on 210
application
GA15
+
VSD
13.2
18.0
50
122
60
140
GA15
+
VSD
13.2
18.0
20
68
60
140
95