Bosch GWH-635-ES-N Manual page 5

• Minimum recommended water pressure range: 30
PSI (2.07 bar)
• Connections:
– Bottom of heater
Combustion
• NOx ≤ 55 ppm
• CO ≤ 200 ppm
• CO level set from factory, see chapter 9.1.
2
Dimensions
• Depth (in): 8 ½" (220 mm)
• Width (in): 15 ¾" (400 mm)
• Height (in): 23 ½" (600 mm)
• Weight: 47 pounds (21 kg).
Gas types
Natural Gas.
LP Gas.
Converting the gas type can only be done by a certified
gas technician with a calibrated CO
CEC for conversion instructions.
Voltage
120 V AC (60 Hz)
Amperage
IDLE - 40 mA
Operation - ≤ 2,5 A
Noise
≤ 50 db (A)
Safety devices
• Flame failure device (ionization flame rod sensor)
• Pressure relief valve (supplied with heater)
• Over heat prevention (temperature limiter).
Water resistant
IP X4 (protection against water drops)
6 720 607 072 (16 January)
UNPACKING THE GWH-635-ES HEATER
This heater is packed securely.
The box includes:
• Pressure relief valve
• Bracket for wall hanging the heater
• Exhaust vent adaptor (with 4 screws and gasket
provided)
• Combustion air inlet adaptor (with 3 screws and
gasket provided)
• Installation manual
• Product registration card.
Do not lose this manual. Please complete and return
the enclosed product registration card.
Before installing the unit, be certain you have the
correct heater for your type of Gas - Propane or
Natural Gas. Identification labels are found on the
shipping box, and on the rating plate which is located on
the right side panel of the cover.
To remove front cover
analyzer. Call
2
• Remove plastic decals on front panel
• Undo two Philips head screws located behind decals
• Lift front cover panel upward and remove.
Fig. 4
Plastic decals
Remove front cover
Appliance details
5