Page 19
SERIES 28RTS/HE BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Cleaning Of Water Boilers
Normally the cleaning of water boilers is unnecessary
unless there is unusually heavy contamination of the
boiler or system.
The burner must be installed and made operational
along with the operating, limit and other safety controls.
The burner on oil boilers must be adjusted to prevent
sooting of the boiler fl ues.
Final burner adjustment should be made after the boiler
has been properly cleaned.
WARNING: The pressure relief valve must
be installed and piped to the fl oor to prevent
scalding in the event of a discharge, see Figure
16. The discharge piping must be sized the
same as the pressure relief valve outlet. Never
install any type of valve between the boiler and
the pressure relief valve! Failure to comply with
this warning can result in an explosion causing
extensive property damage, severe personal
injury or death!
Control Installation
Locate the temperature & pressure gage, low water cutoff,
high limit and operating controls per Figures 17 & 24 and
Table 5. Optional controls must be installed in accordance
with the control manufacturer’s instructions.
NOTE: The front jacket panel MUST be installed before
any controls are attached to the front boiler section!
CAUTION: The controls must be mounted in the correct
location and according to the control manufacturer’s
instructions or the boiler may not function properly!
Piping For Use With Cooling Units
The boiler, when used in connection with a refrigeration
system, must be installed so the chilled medium is piped
in parallel with the boiler. Appropriate valves must be
used to prevent the chilled water from entering the boiler.
When a boiler is connected to a heating coil that may be
exposed to refrigerated air from an air handling device, the
piping system must be equipped with fl ow-control valves
or some other automatic means of preventing gravity
circulation of the boiler water during the cooling cycle.
Figure 24 - Boiler Control Locations
