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2. 10k Ω Indirect Storage Tank Sensor Kit
Heat ing Only boiler can be elect rically connect ed t o
I ndirect St orage Tank.
Diagram of elect rical connect ion of ext ernal indirect
st orage t ank is shown below.
Connect DHW priority sensor t o t erm inals 3 and 4 on
t erm inal block M2. The elem ent of t he sensor m ust be
insert ed in t he sensor well locat ed on t he indirect st orage
t ank.
Verify t he exchange capacity of t he indirect t ank coil is
appropriat e for power of t he heat ing only boiler. Adj ust
DHW t em perat ure ( + 95° F...+ 140° F / + 35° C...+ 60° C) by
pressing
but t ons on boiler cont rol panel.
Elect rica l Connect ion
H ea t ing Only Boiler
10
9
8
7
6
5
4
3
2
1
M a n a ge m e n t of 0 - 1 0 V I n pu t
To act ivat e t he 0- 10v funct ion pa r a m e t e r 8 2 m ust be set t o 3 .
There m ust be at or above 3 V DC present for t he cont rol t o recognize a call for heat .
When P7 8 = 1 t he 0- 10v input m anages CH heat ing set point direct ly per chart below.
When P7 8 = 2 t he 0- 10v input m anages CH heat ing input direct ly per chart below.
When P7 8 = 0 Disabled
P7 8 = 1
Voltage
Tem p Setting
° C
° F
0- 3
3
25
77
4
32
90
5
40
104
6
49
120
7
57
135
8
65
149
9
73
163
10
80
176
ACCESSO RI ES
S
10k Ω
I ndirect DH W Ta nk
Sensor W iring
( 1 0 0 & 1 2 5 M ODELS)
7 5
kW
MBH
kW
4.9
16.6
4.9
7.3
24.9
8.4
9.7
33.3
12.0
12.2
41.6
15.4
14.7
50.0
18.5
17.1
58.3
22.2
19.5
66.6
25.3
21.2
75.0
27.4
Param et er PO3 for H ea t ing Only boiler, wit h no
N o t e
indirect t ank rem ains Fact ory Set at 08. No change
is required.
I f adding an I ndirect Tank wit h a sensor t o
H ea t ing Only Boiler - change PO3 param et er
from 08 t o 05.
I f adding an I ndirect Tank wit h a t herm ost at t o
H ea t ing Only Boiler - change PO3 param et er
from 08 t o 04.
See Sect ion 9, Param et er Set t ings, in boiler's
I nst allat ion, Operat ion, and Maint enance Manual.
Param et er PO3 for COM BI boiler fact ory set at OO
requires no change.
Elect rica l Connect ion
H ea t ing Only Boiler
P7 8 = 2
1 0 0 / 1 1 5
MBH
kW
OFF
16.6
6.4
28.9
10.7
40.8
14.9
52.4
19.2
63.1
23.4
75.7
27.7
86.2
31.9
93.6
36.9
3 1
10
9
8
7
6
5
4
3
2
1
I ndirect DH W Ta nk End
Sw it ch W iring
( 1 0 0 ,1 2 5 & 1 6 5 M ODELS)
1 2 5 / 1 5 0
MBH
kW
22.0
8.6
36.5
14.4
51.0
19.9
65.5
25.5
80.0
31.1
94.5
36.6
109.0
42.5
125.0
48.1
PN 240012875 REV. D [ 03/ 15/ 2022]
1 6 5 / 2 0 5
MBH
29.5
49.0
68.0
87.0
106.0
125.0
145.0
164.0
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