Access To Connection Block; Main Supply Connection - Baxi LUNA DUO-TEC 60 GA Installation Instructions For The Installer

Electrocution Hazard! HIGH VOLTAGE - Connections in terminal block M1 are high voltage (120V / 60Hz).
Before making connections, verify appliance is disconnected from power supply. Respect the input polarity on
terminal block M1: L (LINE) - N (NEUTRAL). Failure to follow these instructions WILL result in death or serious
injury.

8.4 Access To Connection Block

1.
Ensure there is no line voltage at boiler.
2.
Unscrew two screws located under front panel. Remove front cover.
3.
Guide controller or thermostat wire through round grommet(s) on right
side of boiler's bottom plate right.
4.
Tilt control box forward by opening holding clips located on left side of
control housing.
5.
Expose M1 and M2 terminal blocks by removing screw from plastic
cover on left. See Figure 8-3.
6.
Remove plastic from channel in plastic cover. Run wires through new
opening.
7.
Connect wires to appropriate terminals on connection block.
8.
Tilt control box back to original position. Ensure clip on left side of
control box is fully engaged.
9.
Replace front cover and screws under front panel.
10.
Turn power to boiler on.

8.5 Main Supply Connection

Main supply is connected to terminal block M1 which is high voltage (120V /
60Hz).
Fuses, 3.15 A, are incorporated in the power supply terminal block. To check
or replace fuse pull out black fuse carrier.
TERMINAL BLOCK M1
(L) = Live (brown)
(N) = Neutral (light blue).
= Ground (yellow-green).
(1) (2) = contact for 120V Room Thermostat.
Place jumper back on terminals 1-2 of boiler terminal block M1 if
room thermostat is not used or if Remote Control is not installed.
TERMINAL BLOCK M2
Terminals 1 - 2: bus connection of programmable room unit
(supplied as an accessory)
Terminal 3 : not used on Combi units
Terminals 3 - 4: indirect storage tank sensor connection for heat-
only boilers
Terminal 4 - 5: outdoor temperature sensor connection (supplied
as an accessory)
Terminals 6 - 7 - 8: 24V room thermostat connection
Terminals 9 - 10: 0 - 10V connection
240012485 REV C [06/30/2019]
DANGER
!
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FIGURE 8-2 Terminal Block Locations
Fuse Holders (2)
FIGURE 8-3 Terminal Plastic Cover with
Knockouts
Remove
New Opening