Bosch Gas Tankless Water Heater Specifi Cations - Bosch GWH 715 ES Applications Manual

Bosch applications manual
6.3 Bosch Gas Tankless Water Heater Specifi cations
Technical Specifi cations
Model 260 PN
Gas input Min: 30,735
(BTU/hr)
Max: 74,900
Minimum fl ow to 0.6
activate (GPM)
Maximum fl ow rate 2.6
at 45° rise (GPM)
Maximum fl ow rate 1.3
at 90° rise (GPM)
Thermal Effi ciency NG: 78%
LP: 78%
Dimensions H: 28¾
(inches) W: 12¼
D: 8½
Weight (lbs.) 25
Modulating gas valve yes
Ignition Standing
pilot
Gas connection ½" Male NPT
Water connections ½" Male NPT
NG gas pressure Min: 7
(inches of W.C.) Max: 14
LP gas pressure Min: 11
(inches of W.C.) Max: 14
Water pressure Min: 30
Static - (PSI) Min (well): 40
Max: 150
Electrical supply N/A
Venting options Vertical
natural draft
* horizontal
termination
not allowed
Venting diameter 4
(inches)
Vent material Type B-vent
recommended
Note:
C 920 ES (residential model) has a maximum setpoint temperature
of 140°F.
C 920 ESC (commercial model) has a maximum setpoint
temperature of 180°F.
Note:
For specifi cations and details on the Bosch GWH 345 ESR and
GWH 450 ESR models, see the GWH 345 ESR and GWH 450 ESR
applications manual.
BOSCH THERMOTECHNOLOGY CORPORATION
425 PN 425 HN
Min: 31,000 Min: 30,735
Max: 117,000 Max: 117,000
0.6 0.6
4.2 4.2
2.1 2.1
NG: 78% NG: 80%
LP: 78% LP: 80%
H: 25¾ H: 25¾
W: 16¾ W: 16¾
D: 8½ D: 8½
33 33
yes yes
Standing Hydro-
pilot generated
¾" Male NPT ¾" Male NPT
¾" Male NPT ¾" Male NPT
Min: 7 Min: 7
Max: 14 Max: 14
Min: 11 Min: 11
Max: 14 Max: 14
Min: 30 Min: 30
Min (well): 40 Min (well): 40
Max: 150 Max: 150
N/A N/A
Vertical Vertical
natural draft natural draft
* horizontal * horizontal
termination termination
only with AQ4 only with AQ4
vent kit vent kit
5 5
Type B-vent Type B-vent
recommended recommended
715 ES C 800 ES
Min: 19,900 Min: 19,900
Max: 199,000 Max: 199,000
0.65 0.65
7.2 8.0
3.6 3.9
NG: 82% NG: 92%
LP: 82% LP: 92%
H: 30½ H: 30½
W: 17⅞ W: 17⅞
D: 11¼ D: 11¼
67 74
yes yes
Electronic Electronic
¾" Male NPT ¾" Male NPT
¾" Male NPT ¾" Male NPT
Min: 3.5 Min: 3.5
Max: 10.5 Max: 10.5
Min: 8 Min: 8
Max: 13 Max: 13
Min: 30 Min: 30
Min (well): 40 Min (well): 40
Max: 150 Max: 150
120VAC 120VAC
direct vent direct vent
room-sealed room-sealed
combustion combustion
3 or 4 3 or 4
Stainless steel PVC, CPVC,
(AL29-4C) or ABS
(Schedule 40)
Bosch applications manual | 06.2009
| 11
C 920 ES/ESC
Min: 25,000
Max: 225,000
0.65
9.2
4.6
NG: 94%
LP: 94%
H: 30½
W: 17⅞
D: 11¼
88
yes
Electronic
¾" Male NPT
¾" Male NPT
Min: 3.5
Max: 10.5
Min: 8
Max: 13
Min: 30
Min (well): 40
Max: 150
120VAC
direct vent
room-sealed
combustion
3 or 4
PVC, CPVC,
or ABS
(Schedule 40)