Firebird Condensing Boiler
4
4.5 - UTILITY BOILER - WIRING
ELECTRICAL SUPPLY
The boiler and controls require 110V 1 phase 60Hz mains electric supply protected with a 15amp fuse.
The guarantee on this product will be rendered void if the burner or controls are damaged by power from stand by
electricity eg. generator.
THIS APPLIANCE MUST BE GROUNDED.
The electricity to the boiler shall come from a dedicated breaker in the electric service box. A service switch should be
mounted on the side of the boiler so the burner technician can service the burner and controls.The electrical wiring should
be routed so as not to interfere with normal servicing of the boiler. Wiring done in the field between devices not attached to
boiler shall conform with the temperature limitations for type T wire (63F/35C) or other specified wire as applicable when
installed in accordance to manufacturer's instructions and wiring diagrams. If an external electrical source is utilized, the
boiler, when installed, must be electrically bonded to ground in accordance with the requirements of the authority having
jurisdiction or, in the absence of such requirements, with the National Electrical Code, ANSI/NFPA 70 and/or the Canadian
Electrical Code Part 1, CSA C22.1, Electrical Code.
Riello RDB
Internal Factory
wiring
Wiring Legend
B1
B2
Ground
Capped
Red
White
Green
Black
Recommended Settings
180
off
med.
Hi-limit
Lo-limit
econ
Changing Domestic Hot Water Priority (DHWP) Setting the domestic
hot water priority function temporarily overrides the Heat Manager
Dynamic Temperature Reset functionality when there is a call for
domestic hot water. It also temporarily turns off either the C1 or ZC
outputs (depending on the DHWP and circulator source settings) to
give priority to the DHWP zone when it calls for heat. In any mode
other than an OPTION sub-menu, press the “OPTION” key. The
following screen Appears: HEATMANAGER MENU Press the “▲”
and “▼” keys until the following screen is displayed: MORE
OPTIONS. Press “ENTER (RESET)”. The following screen will be
displayed: LWCO MENU. Press the “▲” and “▼” keys until the
following screen is displayed: DHWP, OFF. Press “ENTER
(RESET)” to toggle between OFF, ON TT, and ON ZR settings.
Press “CANCEL (BACK)” to exit.
1L
2L
1
B
2
B
1C
2C
R
Z
C
Z
T
T
L1
L2
Power supply
from Firomatic
installed above
boiler
To room
thermostat
To domestic
Call
(see Note)
4 Pin
Connector
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