Bosch Gwh 715 Es - Bosch GWH 715 ES Applications Manual

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2.2 Bosch GWH 715 ES

Features:
Electronic ignition and built in power vent
82% thermal effi ciency
Vents vertically or horizontally with 3" or 4" stainless steel
(AL29-4C)
Direct vent room-sealed combustion
Computerized temperature control — ensures temperature stability
Model GWH 715 ES N for natural gas (NG) supply
Model GWH 715 ES L for liquid propane (LP) supply
15-year warranty on heat exchanger
GWH 715 ES Technical Specifi cations
Gas input
Minimum fl ow to activate
Flow rates
Thermal Effi ciency
Dimensions
Weight
Modulating gas valve
Ignition
Accessories
GWH 715 ES Installation Specifi cations
Gas connection
Water connections
NG gas pressure
LP gas pressure
Water pressure
(Static)
Electrical supply
Venting
Application manual | 11.2007
Natural Gas: 19,900 - 199,000 BTU
LP Gas: 19,900 - 199,000 BTU
0.65 gallons per minute (gpm)
45˚F rise @ 7.2 gpm
55˚F rise @ 5.9 gpm
65˚F rise @ 5.0 gpm
77˚F rise @ 4.2 gpm
90˚F rise @ 3.6 gpm
NG: 82% LP: 82%
30½" h x 17⅞" w x 11¼" d
67 lbs.
yes
Electronic
Outdoor kit (PTOK)
Wireless Remote (TSTAT2)
Tankless Link Cascading Kit (TLINK)
Freeze Prevention Kit (8700400022)
Water Filter Kit (8703305356)
¾" Male NPT
¾" Male NPT
Minimum: 4" W.C.
Maximum: 14" W.C.
Minimum: 9" W.C.
Maximum: 14" W.C.
Minimum: 30 PSI
Minimum well pressure: 40 PSI
Maximum: 150 PSI
120VAC - plugs in
3" or 4" stainless steel (AL29-4C)
direct vent
room-sealed combustion
GWH 715 ES Installation Clearances
Top (A) 12"
Front (B) 1"
Back 0"
Sides 1"
Floor (C) 12"
3ft minimum
distance
Fig. 1 Venting confi gurations
Installation guidelines:
Venting:
Must be 3" or 4" AL29-4C sealed stainless steel vent pipe.
Slope horizontal runs up to termination ¼" per foot. The last
horizontal section of exhaust vent pipe between last elbow and
termination must slope down to the termination ¼" per foot.
Do not combination vent with any other appliance.
Install condensate drain where applicable.
See manual for vent terminator clearances.
Gas piping:
Heater will not function properly without adequate supply gas
pressure.
Any appliance connector should be ¾" minimum diameter
Plumbing:
Install the included pressure relief valve and pipe to suitable
drain.
Minimum piping diameter is ¾".
Do not solder directly to the bottom of the unit.
Use unions to facilitate easy future maintenance.
Use full port ball valves for isolation valves.
Partially fi ll condensate drain tube loop (where applicable) with
water prior to start up.
BOSCH THERMOTECHNOLOGY CORPORATION
Applications manual
3ft minimum
distance