31
PN 240012875 REV. D [03/15/2022]
ACCESSORIES
Heating Only boiler can be electrically connected to
Indirect Storage Tank.
Diagram of electrical connection of external indirect
storage tank is shown below.
Connect DHW priority sensor to terminals 3 and 4 on
terminal block M2. The element of the sensor must be
inserted in the sensor well located on the indirect storage
tank.
Verify the exchange capacity of the indirect tank coil is
appropriate for power of the heating only boiler. Adjust
DHW temperature (+95°F...+140°F / +35°C...+60°C) by
pressing
buttons on boiler control panel.
Note
Management of 0-10V Input
Parameter PO3 for
Heating Only
boiler, with no
indirect tank remains Factory Set at 08. No change
is required.
If adding an Indirect Tank with a sensor to
Heating Only Boiler
- change PO3 parameter
from 08 to 05.
If adding an Indirect Tank with a thermostat to
Heating Only Boiler
- change PO3 parameter
from 08 to 04.
See Section 9, Parameter Settings, in boiler’s
Installation, Operation, and Maintenance Manual.
Parameter PO3 for
COMBI
boiler factory set at OO
requires no change.
To activate the 0-10v function
parameter 82
must be set to
3
.
There must be at or above 3 V DC present for the control to recognize a call for heat.
When
P78 = 1
the 0-10v input manages CH heating setpoint directly per chart below.
When
P78 = 2
the 0-10v input manages CH heating input directly per chart below.
When
P78 = 0
Disabled
P78=1
P78 = 2
Voltage
Temp Setting
75
100/115
125/150
165/205
°C
°F
kW
MBH
kW
MBH
kW
MBH
kW
MBH
0-3
OFF
3
25
77
4.9
16.6
4.9
16.6
6.4
22.0
8.6
29.5
4
32
90
7.3
24.9
8.4
28.9
10.7
36.5
14.4
49.0
5
40
104
9.7
33.3
12.0
40.8
14.9
51.0
19.9
68.0
6
49
120
12.2
41.6
15.4
52.4
19.2
65.5
25.5
87.0
7
57
135
14.7
50.0
18.5
63.1
23.4
80.0
31.1
106.0
8
65
149
17.1
58.3
22.2
75.7
27.7
94.5
36.6
125.0
9
73
163
19.5
66.6
25.3
86.2
31.9
109.0
42.5
145.0
10
80
176
21.2
75.0
27.4
93.6
36.9
125.0
48.1
164.0
2. 10k Ω Indirect Storage Tank Sensor Kit
Indirect DHW Tank End
Switch Wiring
(100,125 & 165 MODELS)
S
Indirect DHW Tank
Sensor Wiring
(100 & 125 MODELS)
10k Ω
Electrical Connection
Heating Only Boiler
Electrical Connection
Heating Only Boiler
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
Summary of Contents for 100F
Page 33: ...33 PN 240012875 REV D 03 15 2022 MODEL 75 100 HEAT ONLY 75 100 HEAT ONLY WIRING DIAGRAM ...
Page 34: ...34 PN 240012875 REV D 03 15 2022 MODEL 125 HEAT ONLY 125 HEAT ONLY WIRING DIAGRAM ...
Page 35: ...35 PN 240012875 REV D 03 15 2022 MODEL 165 HEAT ONLY 165 HEAT ONLY WIRING DIAGRAM ...
Page 36: ...36 PN 240012875 REV D 03 15 2022 115 COMBI WIRING DIAGRAM MODEL 115 COMBI ...
Page 37: ...37 PN 240012875 REV D 03 15 2022 MODEL 150 COMBI 150 COMBI WIRING DIAGRAM ...
Page 38: ...38 PN 240012875 REV D 03 15 2022 MODEL 205 COMBI 205 COMBI WIRING DIAGRAM ...
Page 44: ...44 PN 240012875 REV D 03 15 2022 LOW WATER CUTOFF LOW WATER CUTOFF DETAIL NO NO YES ...
Page 49: ...49 PN 240012875 REV D 03 15 2022 3 FAULT SOLUTION SECTIONS ...