42
8 - ELECTRICAL CONNECTIONS
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.
4.
Tilt control box forward by opening holding clip 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 is fully engaged.
9.
Replace front cover and screws under front panel.
10.
Turn power to boiler on.
Dry contact end switches from various manufacturers can be
attached to boiler control PCB.
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.
FIGURE 8-2 Terminal Block Locations
Fuse Holders (2)
DANGER
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.
!
TERMINAL BLOCK M2
Terminals 1 - 2
: buss connection of Open Therm Gateway
for ECR programmable room unit thermostat
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
FIGURE 8-3 Terminal Plastic Cover with Knockouts
Remove
New Opening
240013354 REV A [07/01/2021]
Содержание Utica Boilers MAC-115
Страница 2: ...MAC 205...
Страница 4: ...MAH 165...
Страница 77: ...73 APPENDIX A WIRING DIAGRAMS A 2 MODEL 125 Heat Only 240013354 REV A 07 01 2021...
Страница 78: ...74 APPENDIX A WIRING DIAGRAMS A 3 MODEL 165 Heat Only 240013354 REV A 07 01 2021...
Страница 79: ...75 APPENDIX A WIRING DIAGRAMS A 1 MODEL 115 Combi 240013354 REV A 07 01 2021...
Страница 80: ...76 APPENDIX A WIRING DIAGRAMS A 4 MODEL 150 Combi 240013354 REV A 07 01 2021...
Страница 81: ...77 APPENDIX A WIRING DIAGRAMS A 5 MODEL 205 Combi 240013354 REV A 07 01 2021...
Страница 115: ...32 CIRCULATOR CONNECTIONS WIRING DIAGRAM Single Zone Circulator Wiring Using ARGO AR822 II PN 240011430 REV O 07 01 2021...
Страница 117: ...34 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Страница 118: ...35 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Страница 119: ...36 115 COMBI WIRING DIAGRAM MODEL 115 Combi PN 240011430 REV O 07 01 2021...
Страница 120: ...37 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Страница 121: ...38 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Страница 126: ...43 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV O 07 01 2021...
Страница 131: ...48 3 FAULT SOLUTION SECTIONS PN 240011430 REV O 07 01 2021...
Страница 134: ...51 Parameter ID Changed From Changed To Date Reason PARAMETER CHANGE HISTORY PN 240011430 REV O 07 01 2021...