Elite EL-110 LP, Installation Manual

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21
Boiler Manual
PART 5: BOILER PIPING
(CONTINUED)
Basic steps are listed below, with Illustration,
that will guide you through the installation of the
Elite Heating Boiler
®
.
1. Connect the system return marked “Boiler
Return”.
2. Connect the system supply marked “Boiler
Supply”.
3. Install a purge and balance valve or shut off
valve and drain on the system return to purge
air out of each zone.
4. Install a back flow preventer on the cold feed
make-up water line.
5. Install a pressure reducing valve on the cold
feed make-up water line, (15 PSI nominal on
the system return). This boiler has a maximum
working pressure of 160 PSI. You may order a
higher pressure relief valve kit from the
factory. Check temperature and pressure
gauge when operating. It should read
minimum pressure of 12 PSI.
6. Install a circulator as shown in piping details
(this section). Make sure the circulator is
properly sized for the system and friction loss.
7. Install an expansion tank on the system
s u p p l y. C o n s u l t t h e e x p a n s i o n t a n k
manufacturer’s instruction (see part 5, section
D for water volume) for specific information
relating to expansion tank installation. Size the
expansion tank for the required system
volume and capacity.
8. Install an air elimination device on the system
supply.
9. Install a drain valve at the lowest point of the
system. Note: The Elite Heating Boiler
®
can
not be drained completely of water without
purging the unit with an air pressure 15 PSI.
10. The relief valve, temperature & pressure
gauge are included in the accessory kit with
the Elite Boiler Accessory Kit. A pipe
discharge line should be installed 6” above
the drain in the event of a pressure relief. The
pipe size must be the same size as the relief
valve outlet.
NEVER BLOCK THE OUTLET
OF THE SAFETY RELIEF VALVE.
H. CIRCULATOR SIZING
The Elite Heating Boiler
®
Heat Exchanger has a
pressure drop that must be considered in your
system design. Refer to the graph in Fig. 5-1 for
pressure drop through the Elite Heating Boiler
®
Heat Exchanger.
n
CAUTION
The Elite Heating Boiler ® should not be
operated as a potable hot water heater. It
should not be used as a direct hot water heating
device.