Stiebel Eltron 239225 Specifications
Tempra® Series Technical Specications
AWG
AWG
AWG
AWG
AWG
AWG
GPM
GPM
GPM
GPM
Tested and certif ied by WQA
against NSF/ANSI 372 for
lead free compliance.
24 Trend3 239216
24 Plus3 239222
29 Trend4 239217
29 Plus4 239223
36 Trend5 239218
36 Plus5 239225
Technical Data
Tempra® Model
Item Number
Certified to ANSI/UL Std. 499
Conforms to CAN/C SA Std. C22.2 No.88
12 Trend 239213
12 Plus 239219
15 Trend 239214
15 Plus 239220
20 Trend 239215
20 Plus 239221
Phase single 50/60 Hz single6 50/60 Hz single6 50/60 Hz single6 50/60 Hz single6 50/60 Hz single6 50/60 Hz
Voltage 240 V or 208 V 240 V or 208 V 240 V or 208 V 240 V or 208 V 240 V or 208 V 240 V or 208 V
Wattage 12 kW 9 kW 14.4 kW 10.8 kW 19.2 kW 14.4 kW 24 kW 18 kW 28.8 kW 21.6 kW 36 kW 27 kW
Amperage draw 50 A 44 A 2 x 30 A 2 x 26 A 2 x 40 A 2 x 35 A 2 x 50 A 2 x 44 A 3 x 40 A 3 x 35 A 3 x 50 A 3 x 44 A
Number & min. recommended
size of circuit breakers
Number of runs & min.
recommended wire size
Maximum
temperature
increase above
ambient
water temp
1
(DP)
2
(copper)
@
1.50
@
2.25
@
3.00
@
4.50
1 x 50
A 2 x 30 A 2 x 40 A 2 x 35 A 2 x 50 A 3 x 40 A 3 x 35 A 3 x 50 A
1 x 8/2
54 °F 41 °F 65 °F 49 °F 88 °F 66 °F 92 °F 82 °F 92 °F 92 °F 92 °F 92 °F
36 °F 27 °F 43 °F 37 °F 58 °F 44 °F 73 °F 54 °F 87 °F 66 °F 92 °F 82 °F
27 °F 20 °F 33 °F 25 °F 44 °F 33 °F 54 °F 41 °F 66 °F 49 °F 82 °F 61 °F
- - - - 29 °F 22 °F 37 °F 27 °F 44 °F 33 °F 55 °F 41 °F
2 x 10/2
2 x 8/2
2 x 8/2
3 x 8/2
3 x 8/2
Min. water flow to activate unit 0.37 gpm (1.4 l/min) 0.50 gpm (1.9 l/min) 0.50 gpm (1.9 l/min) 0.50 gpm (1.9 l/min) 0.77 gpm (2.9 l/min) 0.77 gpm (2.9 l/min)
Weight 13.5
Nominal water volume 0.13
lb (6.1 kg) 16.1 lb (7. 3 kg) 16.1 lb (7.3 kg) 16.1 lb (7.3 kg) 19.0 lb (8.6 kg) 19.0 lb (8.6 kg)
gal (0.5 l) 0.26 gal (1.0 l) 0.26 gal (1.0 l) 0.26 gal (1.0 l) 0.39 gal (1.5 l) 0.39 gal (1.5 l)
Max. inlet water temperature 131 ° F (55 °C)
5
Width 16
Dimensions
Working pressure 150
/8˝ (42.0 cm) x Height 14½˝ (36.9 cm) x Depth 45/8˝ (11.7 cm)
psi (10 bar)
Tested to pressure 300 psi (20 bar)
Water connections ¾˝ NP T
1
Overcurrent protection sized at 100% of load. Tankless water heaters are considered a non-continuous load.
2
Copper conductors with a temperature rating of 75 °C or greater must be used. Conductors should be sized to maintain a voltage drop of less than 3% under load.
3
Requires minimum 150 A main service. 4 Requires 200 A main service. 5 Requires 300 A main service.
6
29 Trend/Plus & 36 Trend/Plus may be wired for balanced 3-phase 208 V.
15 Trend/Plus, 20 Trend/Plus, 24 Trend/Plus may be wired for unbalanced 3-phase 208 V.
These are our recommendations. Check local codes for compliance if necessar y.
Scroll for temp. rise charts.
17 West St., W. Hatfield, MA 01088 | 800.582.8423 | 413.247.3380 | fax 413.247.3369 | info
@
stiebel-eltron-usa.com | www.stiebel-eltron-usa.com
Tempra® Series Technical Specications
Temperature Rise vs. Flow Rate at 240 V
Flow Rate GPM
Temp Rise °F
Tempra® 20
Tempra
®
24
Tempra
®
29
Tempra
®
36
Tempra
®
12
Tempra
®
15
10
20
30
40
50
80
90
70
60
0
1.00.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
5.0 5.5 6.0 6.5 7. 0 7.5 8.0
and 208 V
Temp ra® 20
Temp ra
®
24
Temp ra
®
29
Temp ra
®
36
Temp ra
®
12
Temp ra
®
15
10
20
30
40
50
80
90
70
60
0
1.00.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
5.0 5.5 6.0 6.5 7. 0 7.5 8.0
Temp Rise °F
Flow Rate GPM
Temperature Rise vs. Flow Rate at 208 V
Temperature Rise vs. Flow Rate at 240 V
90
80
70
60
50
40
Temp Rise °F
30
20
10
0
1.00.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Flow Rate GPM
Temp ra
Temp ra® 12
17 West St., W. Hatfield, MA 01088 | 800.582.8423 | 413.247.3380 | fax 413.247.3369 | info
®
15
5.0 5.5 6.0 6.5 7. 0 7.5 8.0
Temp ra
Temp ra
Temp ra
Temp ra
®
36
®
29
®
24
®
20
@
stiebel-eltron-usa.com | www.stiebel-eltron-usa.com
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