Installing the powerstar, Specifications – Bosch AE115 User Manual
Page 3
 
Specifications
AE115 Unit
AE125 Unit
Voltage supply
2 x 240V AC (Canada 240VAC)
3 x 240V AC (Canada 240VAC)
Amperage
2 x 40 A (Canada 80 A)
3 x 40 A (Canada 120 A)
Maximum output
17.25 kW
26.85kW
Temperature control range
95°F to 131°F
95°F to 131°F
Pressure range
15 psi to 150 psi
15 psi to 150 psi
Minimum flow rate
0.6 US gal / min
0.8 US gal / min
Maximum flow rate
See Graph 1, Page 8
See Graph 1, Page 8
Dimensions (excl. water couplers)
15½” H x 15
1
/
4
” W x 4½” D
15½” H x 15
1
/
4
” W x 4½” D
Weight (without water)
20 lbs
22 lbs
Note: The unit will work at lower supply voltages but the following changes will apply: 
Maximum output 
15kW at 220V 
13kW at 208V 
22.5kW at 220V 
20kW at 208V 
Temperature control range
87°F to 116°F at 220V 
82°F to 108°F at 208V 
87°F to 116°F at 220V 
82°F to 108°F at 208V 
Maximum flow rate 
(refer to Graph 1, Page 8) 
84% of maximum at 220V 
75% of maximum at 208V 
84% of maximum at 220V 
75% of maximum at 208V 
Installing the PowerStar
WARNING:
If water supply has a high mineral content, a water softening system is strongly recommended. Damage 
to the water heater resulting from scale or hard minerals will not be covered under warranty. 
 
DISCLAIMER:
In the Commonwealth of Massachusetts a licensed plumber or electrician must perform the installation. 
(Approval number: P1-09-25). 
 
Locating the Powerstar
WARNING:
Do not install the water heater in an area where there is a chance of freezing. Damage to the water heater 
as a result of freezing will not be covered under warranty. 
•
If being used in a public place, locate the heater out of easy reach to discourage vandalism.
•
Mount the unit onto a flat section of wall, well away from any potential splashes of water o r spray 
and away from areas where direct moist or wet contact could occur. 
Should it be necessary to service the Powerstar, observe the following clearances. These are not 
required clearances, but would facilitate any service work.
 
 
 
 
 
3
Recommended minimum
clearances for servicing
Top
12”
Bottom
6”
Sides
0”
Front
12”