Spec Sheet

Tempra
®
Series Technical Specications
17 West St., W. Hatfield, MA 01088 | 800.582.8423 | 413.247.3380 | fax [phone] | info
@
stiebel-eltron-usa.com | www.stiebel-eltron-usa.com
Tempra
®
Model
Item Number
12 Trend 239213
12 Plus 239219
15 Trend 239214
15 Plus 239220
20 Trend 239215
20 Plus 239221
24 Trend
3
239216
24 Plus
3
239222
29 Trend
4
239217
29 Plus
4
239223
36 Trend
5
239218
36 Plus
5
239225
Phase single 50/60 Hz single
6
50/60 Hz single
6
50/60 Hz single
6
50/60 Hz single
6
50/60 Hz single
6
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
1
(
DP
)
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
Number of runs & min.
recommended wire size
2
(copper)
1 x 8/2
AWG
2 x 10/2
AWG
2 x 8/2
AWG
2 x 8/2
AWG
3 x 8/2
AWG
3 x 8/2
AWG
Maximum
temperature
increase above
ambient
water temp
@
1.50
GPM
54 °F 41 °F 65 °F 49 °F 88 °F 66 °F 92 °F 82 °F 92 °F 92 °F 92 °F 92 °F
@
2.25
GPM
36 °F 27 °F 43 °F 37 °F 58 °F 44 °F 73 °F 54 °F 87 °F 66 °F 92 °F 82 °F
@
3.00
GPM
27 °F 20 °F 33 °F 25 °F 44 °F 33 °F 54 °F 41 °F 66 °F 49 °F 82 °F 61 °F
@
4.50
GPM
- - - - 29 °F 22 °F 37 °F 27 °F 44 °F 33 °F 55 °F 41 °F
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
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)
Nominal water volume 0.13
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)
Dimensions
Width 16
5
/
8
˝ (42.0 cm) x Height 14½˝ (36.9 cm) x Depth 4
5
/
8
˝ (11.7 cm)
Working pressure 150
psi (10 bar)
Tested to pressure 300 psi (20 bar)
Water connections ¾˝ NPT
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 necessary.
Tested and certified by WQA
against NSF/ANSI 372 for
lead free compliance.
Certified to ANSI/UL Std. 499
Conforms to CAN/CSA Std. C22.2 No.88
Technical Data
Scroll for temp. rise charts.
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