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5
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
qualified water treatment expert should be consulted.
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.
Table 2A
Water Chemistry Requirements
Water used in the tank must have characteristics falling
within the following limits:
Characteristic Min. Max.
Ph 6.0 8.0
Chloride (PPM) -- 80
CAUTION
Locating the Tank
1. Choose a location for your water heater centralized to the
piping system. You must also locate the SDT/SET 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
certified 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 4 shows the weights of all the tanks filled
with water. Make sure that the location chosen for the tank
is capable of supporting it.
This appliance must be placed where leakage
from the 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 floors of
the building. A water heater should always be
located in an area with a floor drain or
installed in a drain pan suitable for water
heaters. Lochinvar shall not be held liable for
any such water damage.
CAUTION
Failure to properly support the tank could
result in property damage or personal injury.
ƽ WARNING
4. The tank may be located some distance from the boiler
provided the pump is designed to provide the flow called
for in Table 3B (page 7)- Pressure Drop Values, through the
coil. 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.
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, electrical, and servicing clearances
must be figured when locating the water heater.
Minimum Clearance to the Element Cover
See FIG 2-1. Clearances must be a minimum of 24-inches to
allow for element removal and replacement on SET model.
SDT/SET Installation & Operation Manual
24” MIN CLEARANCE FROM
ELEMENT COVER
(SET Models)
Figure 2-1 Element Cover Clearances