Wiring Diagram 9: Multiple Boiler Wiring (AMB-4)
o _ o
[I1
OUTSIDE SENSOR
IF USING EXTERNAL DAY/NIGHT FEATURE- i U[] U/_ u
CONNECT HERE (DRY CONTACT) u
IF USING REQ/ACK CONNECT HERE __
(TT/THERMOSTAT DRY CONTACT)
TO PRIORITY IF USING __
{DRY CONTACT)
Yellow
s_
Black
- _ES
DB DD
° '_'J2.... O
N _
___O_...... N_l
BLACK
[]
O
DD DD
[] []
EZ EZ
TO TO i
AUXILIARY BOILER T-T
DEVICE (TERMINALS
1&2)
AMB4
C
[]
DDD
DD DD DD
[] [] []
BOILER
T-T
_o_ NT' L'RI
DHWT2 CHc2Ot _
A, _NWC,O I
A_ DNwc_OI_
! _ILER CONTROL PANEL
Wiring Diagram 10: Multiple Boiler Wiring (AMB-8)
WATER SENSOR
r ],_<:
OUTSIDE SENSOR
IF USING EXTERNAL DAY/NIGHT FEATURE /
CONNECT HERE (DRY CONTACT)
IF USING REQ/ACK CONNECT HERE i
(TT/THERMOSTAT DRY CONTACT)
TO PRIORITY IF USING
(DRY CONTACT)
_llow
L White /
o o
0
_B [] ES ES ES
DD SD SD DD SD
] [] [] [] [] []
c] c] c]
DD BD DD
[] [] []
CNT' L'O1
DHWT2 CH C20t
Al DHWCI OI
BOILERCONTROL PANEL
.... _ i:]F:
120V Will
BLACK
[_ [_ [_ [_ [_ [_ [_ [_
TO TO TO
BOILER BOILER BOILER BOILERT-T BOILERT-T BOILER
T-T T-T T-T (TERMINALS (TERMINALS T-T
1&2) 1&2)
DWHT1 CHC1
IOr)HWT2 CHC2_
IOA_ DNwc_OI 2-'4,
IOA DNwc OI
] J BOILERCONTROL PANEL ._