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Pre-Installation - Bosch SST150-40 Installation And Operating Manual

Indirect fired water heaters
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2 Pre-installation

1. The installation must conform to the instructions in this
manual and all applicable local, state, provincial, and
national codes, laws, regulations, and ordinances.
Installations in Canada must conform to B149.2
Installation Code.
2. Be certain the domestic water supply to the tank has
physical and chemical characteristics that fall within the
limits shown in Table 2A. Where questions exist as to
the composition of the water on the job, a qualifi ed
water treatment expert should be consulted.
CAUTION:
Water with characteristics outside the limits
shown in Table 2A may severely shorten the
life of the tank due to corrosion. Damage
to tanks in such cases is not covered under
warranty.
3. Read and understand all installation requirements in
this manual.
Water Chemistry Requirements
Water used in the tank must have characteristics falling
within the following limits:
Characteristic
Ph
Chloride (PPM)
Indirect Fired Water Heaters Installation and Operating Manual
Table 2A
Min.
Max.
6.0
8.0
--
80
Installation & Operating Manual
Locating the Tank
1. Choose a location for your water heater centralized to
the piping system. You must also locate the SST water
heater where it will not be exposed to freezing
temperatures. Additionally, you will need to place the
water heater so that the controls, drain, and inlet/
outlets are easily accessible. This appliance must not be
installed outdoors, as it is certifi ed as an indoor
appliance, and must also be kept vertical on a level
surface.
2. Keep distance between boiler and water heater to a
minimum to:
a. reduce piping heat loss
b. provide minimal friction loss
3. Figure 1-1 on page 6 shows the weights of all the tanks
fi lled with water. Make sure that the location chosen for
the tank is capable of supporting it.
CAUTION:
This appliance must be placed where
leakage from the temperature and pressure
(T&P) relief valve, leakage from the
related piping, or leakage from the tank or
connections, will not result in damage to the
surrounding areas, or to the lower fl oors of
the building. A water heater should always be
located in an area with a fl oor drain or
installed in a drain pan suitable for water
heaters. The manufacturer shall not be held
liable for any such water damage. Damage
caused by the failure to properly install a
drain pan or in an area with a drain is not the
responsibility of the manufacturer or Bosch
Thermotechnology Corp. (BTC).
4. The tank may be located some distance from the boiler
provided the pump is designed to provide the fl ow
called for in Table 3B - Pressure Drop Values, through
the coil. Also, the further the tank is from the boiler, the
longer the response of the boiler will be to a call from
the tank zone. Insulate piping between the boiler and
the tank.
WARNING:
Failure to properly support the tank could result
in property damage or personal injury.
Recommended Clearances
The installation location must provide adequate clearances
for servicing and proper operation of the water heater. A
12 inch vertical clearance is recommended from the top of
the water heater. A zero clearance is allowed for the sides
of the water heater. However, boiler and servicing
clearances must be fi gured when locating the water
heater.
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