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10 | Installation instructions
Fig. 4
Minimum clearances
TOP (A)
FRONT (B)
BACK
SIDES
BOTTOM (C)
Table 4
4
Installation instructions
4.1
Introduction
Please follow these instructions. Failure to follow instructions
may result in:
•
Damage or injury.
•
Improper operation.
•
Loss of warranty.
If you are unable to perform the tasks required to install this
heater properly, please contact a locally licensed plumber or
gas technician.
Please contact Bosch Water Heating with any questions.
4.2
Proper location for installing your heater
Carefully select the location of the water heater. For your safety
and for proper heater operation, you must provide combustion
air to the heater and a proper exhaust vent system.
▶ 1. Locate the heater where venting, gas and plumbing
connections are feasible and convenient.
6 720 644 951 (2014/11)
Model 330PN
12 inches (306 mm)
4 inches (100 mm)
0 inches
4 inches (100mm)
12 inches (306 mm)
▶ 2. The hot water lines should be kept short to save energy.
Centrally locating the water heater is best. It is always best
to have hot water lines insulated.
WARNING: The water in this water heater is
cold and always remains cold except for the
times that hot water is being used.
▶ DO NOT INSTALL IN AN AREA WHERE
IT COULD FREEZE.
▶ Drain the heater entirely if freezing
temperatures are anticipated in area
where heater is installed. See chapter
5.5 for draining instructions.
▶ To prevent freeze damage from residual
water in the heater, introduce short
bursts of compressed air (20-40psi)
through these connections to remove
the residual water in the horizontal
pipes and water valve.
WARNING:
▶ Flammable materials, gasoline,
pressurized containers, or any other
items or articles that are potential fire
hazards must NOT be placed on or
adjacent to the heater. The appliance
area must be kept free of all combustible
materials, gasoline and other flammable
vapors and liquids.
WARNING:
▶ The heater must be isolated from the
gas supply piping system during any
pressure testing of that system at test
pressures equal to or more than 0.5
psig.
WARNING:
▶ Place the heater in a location where
water leaks will do NO DAMAGE to
adjacent areas.
330 PN
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