Electrical Wiring; General Operation - RBI FUTERA III Series HeatNet Installation & Operation Manual

FUTERA III INSTALLATION AND OPERATION INSTRUCTIONS
WARNING: Never use an open fl ame to test for gas
leaks. Always use an approved leak detection
method. Failure to comply with this warning can
cause extensive property damage, severe personal
injury or death!
Whenever the gas supply piping is pressure tested the
boiler/water heater gas controls must be protected. If the
test pressure is equal to, or less than 1/2 psig, 3.5 kPa
isolate the boiler/water heater by closing it's manual shut
off valve, see Figure 14. If the test pressure is greater than,
or equal to 1/2 psig, 3.5 kPa, disconnect the boiler/water
heater and its individual shut-off valve.

ELECTRICAL WIRING

Electrical Power Connections
CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation! Verify proper operation after
servicing.
AT T E N T I O N : Au m o m e n t d e l ' e n t r e t i e n d e s
commandes, étiquetez tous les fils avant de les
débrancher. Des erreurs de câblage peuvent entraîner
un fonctionnement inadéquat et dangereux. S'assurer
que l'appareil fonctionne adéquatement une fois
l'entretirn terminé.
The electrical connections to this boiler/water heater must
be made in accordance with all applicable local codes and
the latest revision of the National Electrical Code, ANSI /
NFPA-70. Installation should also conform with CSA C22.1
Canadian Electrical Code Part I if installed in Canada.
Install a separate 120 volt 15 amp or 20 amp circuit
breaker for the boiler/water heater and pump, see Table
11. A properly rated shut-off switch should be located
at the boiler/water heater. The boiler/water heater must be
grounded in accordance with the authority having
jurisdiction, or if none, the latest revision of the National
Electrical Code, ANSI/NFPA-70.
Table 11 - Futera III Electrical Requirements
Recommended
Futera III Circuit Breaker
Model
MB/MW 500
MB/MW 750 - 1000
MB/MW 1250 - 2000
*Use separate circuit breaker that is properly sized for pump and
pump contactor.
Line voltage fi eld wiring of any controls or other devices
must conform to the temperature limitation of type TEW wire
at 95°F, 35°C above room temperature. Use copper
conductors with a minimum size of #14 awg. Use appropriate
wiring materials for units installed oudoors. The wire size
must be compatible with the total amp draw of the circuit.
*Running
(Amps) Amps
15 3.9
15 6.0
20 11.4
Refer to the wiring diagram supplied with the boiler/water
heater for proper wiring connections and boiler full load
amperage (FLA).

GENERAL OPERATION

WARNING: Before proceeding read and fully
understand the instructions contained in this
manual. Do not attempt to operate this boiler/water
heater if it has not been installed in accordance
with the guidelines set forth in this manual. Failure
to comply with this warning can result in extensive
property damage, severe personal injury or death!
Should overheating occur or the gas supply fail to shut off,
turn off the manual gas control valve to the appliance. Do
not interrupt water fl ow through the boiler/water heater.
En cas de surchauffe ou si l'alimentation en gaz ne s'arrête
pas, fermez manuellement le robinet d'arrêt de l'admission
de gaz.
Hydronic Heating Boilers
Open the make-up water valve and slowly fi ll the boiler and
all of the radiation with water. Ensure that all bleed and
drain valves are closed.
Adjust the make-up water pressure regulator so a minimum
12 psig, 82.7 kPa system pressure is maintained at the
highest point in the system piping. If a make-up water pump
is used adjust it to maintain a minimum 12 psig, 82.7 kPa
system pressure.
Open the system bleed and drain valves, one at a time, to
purge the air trapped in the heating system piping.
With the boiler off, run the system pump for at least 30
minutes and bleed the system piping using the bleed
valves. If strainers are used in the system piping, the make-
up water valve should be closed and the strainers checked
and cleaned.
The system expansion tank should be checked to ensure
that the correct water level in the tank is maintained. The
tank should be less than half full of water with the system
full and adjusted to the correct operating pressure.
Star t the boiler as described in the "OPERATING
INSTRUCTIONS" section. Run the boiler for at least an
hour. The system pump(s) and all radiation units must be
operated during this time. Ensure that the make-up water
valve is open.
Shut the boiler off and open the bleed valves to purge the
air trapped in the heating system piping. Close the make-
up water valve and check and clean the strainers and
make-up water pressure reducing valve.
Open the make-up water valve and adjust the system
pressure if necessary. The system should be checked and
bled after three days of operation.
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