ECR UTICA BOILERS UB95M-200, Installation, Operation & Maintenance Manual

Page: 41 / 48

2
3
DO NOT USE
1
RED BLA
CK
BLA
CK
RED
and 4 when
valves
using zone
without an
end switch.
Note: Install
wire jumper
between
terminals 3
120
VA
C
T-STAT
END
SWITCH
MOTOR
*BOILER
*BOILER CIRCULATOR WILL RUN
WITH ALL CALLS FOR HEAT.
DHW C1
DHW C2
CH C2
CH C1
AIR SENSOR
OUTDOOR
A2
DWH T1
DHW T2
A1
Boiler Control Panel
CH T1
CH T2
L1
L2
Note: a priority loop zone valve is used with this configuration
CH
CIRC
CONTROL
TANK
HEATER AQUASTAT
OR THERMOSTAT
INDIRECT WATER
BLA
CK
BLA
CK
2 1 3 4
MOTOR
END
SWITCH
VALVE ONLY
4 WIRE ZONE
JUMPER
VAC
CIR
CUIT ON
120
L2
N.O.
4
N.C.
4
AR822-II
T T
R W
24V
C 5 6 6
RELAY
TR
ANSFORMER
N.O. N.C.
24V
AC 15
VA
24V
AC
L1/3 FACTORY
INSTALLED
JUMPER
ZONE VALVE/PUMP
PRIORITY
ZR-ZC
DPM-2
OPTION SWITCH
ZC ON
STATUS
PRIORITY ON
PRIMARY PUMP
PRIORITY PUMP
X-X CONTACT
ZR ON
T T T T T T T T
1 2 3 4
PRI ZONE
1 2 3 4
ZONE 2
1 2 3 4
ZONE 3
1 2 3 4
ZONE 4
ON
N L N L N L ZR ZC
120 VAC
PRIORITY
PUMP
PRIMARY
PUMP
FROM BOILER
X X
TR
ANSFORMER
24V
AC 40
VA
Black
White
Yellow
Yellow
AZ-4CP
T-STAT
B&G C
OMFOR
T-
TR
OL,
SP
AR
CO
TA
CO
TY
PE
ZONE
VAL
VE
ARGO AZ-4CP
CONTROL
HONE
YWELL, ERIE
SUPERIOR
TY
PE
ZONE
VAL
VE
CIRC
N L
DHW
CIRC
SWITCH LEGEND
OFF
ON
Xvi - pipinG and wirinG appendiX
wiring diagram 7 : primary/secondary piping with zone valves and domestic hot water (with circulator)
41