PS19T/PS28T Technical Support
Online Technical Support from Bosch Water Heaters
 
   Installation Tips
The compact PowerStar hangs on the wall and is easy to install. Simply connect the ½” hot and cold water fittings and the electrical connections, and you’re ready for endless hot water.
   
   Specifications

Energy Factor

PS19T: 0.99
PS28T: 0.99

Efficiency

PS19T: 99%
PS28T: 99%

Weight

PS19T: 8 lbs.
PS28T: 11 lbs.

Dimensions

PS18T: 9" x 10" x 3.5"
PS28T: 12" x 12" x 3.5"

Water Fittings

PS19T: ½" male NPT
PS28T: ½" male NPT

Volts

PS19T: 240/208v
PS28T: 240/208v

Kilowatts

PS19T: 14.25kw
PS28T: 21kw

Amps*

PS19T: 80
In US (2 x 40 amps)
In Canada** (1 x 80 amps)
PS28T: 120
In US (3 x 40 amps)
In Canada** (1 x 120 amps)

Wire Size

PS19T:
In US - Min. #8 AWG (4 conductors & ground)
In Can.** - Min. #4 AWG (2 conductors & ground
PS28T:
In US - Min. #8 AWG (6 conductors & ground)
In Can.** - Min. #2 AWG (2 conductors & ground)

Flow Rates
(at 0.8 GPM)

PS19T:
N/A @ 3.0 gpm
43°F rise @ 2.5 gpm
54°F rise @ 2.0 gpm
74°F rise @ 1.5 gpm
92°F rise @ 1.0 gpm
PS28T:
55°F rise @ 3.0 gpm
61°F rise @ 2.5 gpm
75°F rise @ 2.0 gpm
88°F rise @ 1.5 gpm
78°F† rise @ 1.0 gpm

 

*Recommended service to home for PS19T is 150 amps; 200 amps for PS28T.
**In Canada, unit must be wired to a single breaker. 
† The unit will not provide an output temperature above 133°F.
   
PS19T/PS28T Tech Support
PowerStar PS19T
 

Note: Specifications and product information subject to change without notice.